0.20.0

Truecolor does not work on default Windows terminal.
It is a problem in neovim GUIs.

https://github.com/sainnhe/edge/issues/5#issuecomment-565748240

.github/ISSUE_TEMPLATE.md

@@ -1,30 +1,22 @@
+<!-- ISSUES NOT FOLLOWING THIS TEMPLATE WILL BE CLOSED AND DELETED -->
+
 <!-- Check all that apply [x] -->
-- Category
+
-    - [ ] fzf binary
+- [ ] I have read through the manual page (`man fzf`)
-    - [ ] fzf-tmux script
+- [ ] I have the latest version of fzf
-    - [ ] Key bindings
+- [ ] I have searched through the existing issues
-    - [ ] Completion
+
-    - [ ] Vim
+## Info
-    - [ ] Neovim
+
-    - [ ] Etc.
 - OS
     - [ ] Linux
     - [ ] Mac OS X
     - [ ] Windows
-    - [ ] Windows Subsystem for Linux
     - [ ] Etc.
 - Shell
     - [ ] bash
     - [ ] zsh
     - [ ] fish
-
+    
-<!--
+## Problem / Steps to reproduce
-### Before submitting
-
-- Make sure that you have the latest version of fzf
-- If you use tmux, make sure $TERM is set to screen or screen-256color
-- For more Vim stuff, check out https://github.com/junegunn/fzf.vim
-
-Describe your problem or suggestion from here ...
--->
 

.gitignore

@@ -1,6 +1,10 @@
-bin
+bin/fzf
-src/fzf/fzf-*
+bin/fzf.exe
-gopath
+target
 pkg
 Gemfile.lock
 .DS_Store
+doc/tags
+vendor
+gopath
+*.zwc

.travis.yml

@@ -1,28 +1,27 @@
-language: ruby
+language: go
-matrix:
+dist: xenial
+addons:
+  apt:
+    sources:
+      - sourceline: "ppa:pi-rho/dev"
+      - sourceline: "ppa:fish-shell/release-2"
+    packages:
+    - tmux
+    - zsh
+    - fish
+
+env:
+  - GO111MODULE=on
+
+jobs:
   include:
-    - env: TAGS=
+    - stage: unittest
-      rvm: 2.2.0
+      go: "1.13.x"
-#   - env: TAGS=tcell
+      script: make && make test
-#     rvm: 2.2.0
 
-install:
+    - stage: cli
-- sudo apt-get update
+      go: "1.13.x"
-- sudo apt-get install -y libncurses-dev lib32ncurses5-dev libgpm-dev
+      rvm: "2.5"
-- sudo add-apt-repository -y ppa:pi-rho/dev
+      script: |
-- sudo apt-add-repository -y ppa:fish-shell/release-2
+        make install && ./install --all && tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]
-- sudo apt-get update
-- sudo apt-get install -y tmux=1.9a-1~ppa1~p
-- sudo apt-get install -y zsh fish
 
-script: |
-  export GOPATH=~/go
-  export FZF_BASE=$GOPATH/src/github.com/junegunn/fzf
-
-  mkdir -p $GOPATH/src/github.com/junegunn
-  ln -s $(pwd) $FZF_BASE
-
-  cd $FZF_BASE/src && make test fzf/fzf-linux_amd64 install &&
-  cd $FZF_BASE/bin && ln -sf fzf-linux_amd64 fzf-$(./fzf --version)-linux_amd64 &&
-  cd $FZF_BASE && yes | ./install && rm -f fzf &&
-  tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]

BUILD.md

@@ -0,0 +1,51 @@
+Building fzf
+============
+
+Build instructions
+------------------
+
+### Prerequisites
+
+- Go 1.11 or above
+
+### Using Makefile
+
+```sh
+# Build fzf binary for your platform in target
+make
+
+# Build fzf binary and copy it to bin directory
+make install
+
+# Build 32-bit and 64-bit executables and tarballs in target
+make release
+
+# Make release archives for all supported platforms in target
+make release-all
+```
+
+### Using `go get`
+
+Alternatively, you can build fzf directly with `go get` command without
+manually cloning the repository.
+
+```sh
+go get -u github.com/junegunn/fzf
+```
+
+Third-party libraries used
+--------------------------
+
+- [mattn/go-runewidth](https://github.com/mattn/go-runewidth)
+    - Licensed under [MIT](http://mattn.mit-license.org)
+- [mattn/go-shellwords](https://github.com/mattn/go-shellwords)
+    - Licensed under [MIT](http://mattn.mit-license.org)
+- [mattn/go-isatty](https://github.com/mattn/go-isatty)
+    - Licensed under [MIT](http://mattn.mit-license.org)
+- [tcell](https://github.com/gdamore/tcell)
+    - Licensed under [Apache License 2.0](https://github.com/gdamore/tcell/blob/master/LICENSE)
+
+License
+-------
+
+[MIT](LICENSE)

CHANGELOG.md

@@ -1,6 +1,300 @@
 CHANGELOG
 =========
 
+0.20.0
+------
+- Customizable preview window color (`preview-fg` and `preview-bg` for `--color`)
+  ```sh
+  fzf --preview 'cat {}' \
+      --color 'fg:#bbccdd,fg+:#ddeeff,bg:#334455,preview-bg:#223344,border:#778899' \
+      --border --height 20 --layout reverse --info inline
+  ```
+- Removed the immediate flicking of the screen on `reload` action.
+  ```sh
+  : | fzf --bind 'change:reload:seq {q}' --phony
+  ```
+- Added `clear-query` and `clear-selection` actions for `--bind`
+- It is now possible to split a composite bind action over multiple `--bind`
+  expressions by prefixing the later ones with `+`.
+  ```sh
+  fzf --bind 'ctrl-a:up+up'
+
+  # Can be now written as
+  fzf --bind 'ctrl-a:up' --bind 'ctrl-a:+up'
+
+  # This is useful when you need to write special execute/reload form (i.e. `execute:...`)
+  # to avoid parse errors and add more actions to the same key
+  fzf --multi --bind 'ctrl-l:select-all+execute:less {+f}' --bind 'ctrl-l:+deselect-all'
+  ```
+- Fixed parse error of `--bind` expression where concatenated execute/reload
+  action contains `+` character.
+  ```sh
+  fzf --multi --bind 'ctrl-l:select-all+execute(less {+f})+deselect-all'
+  ```
+- Fixed bugs of reload action
+    - Not triggered when there's no match even when the command doesn't have
+      any placeholder expressions
+    - Screen not properly cleared when `--header-lines` not filled on reload
+
+0.19.0
+------
+
+- Added `--phony` option which completely disables search functionality.
+  Useful when you want to use fzf only as a selector interface. See below.
+- Added "reload" action for dynamically updating the input list without
+  restarting fzf. See https://github.com/junegunn/fzf/issues/1750 to learn
+  more about it.
+  ```sh
+  # Using fzf as the selector interface for ripgrep
+  RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+  INITIAL_QUERY="foo"
+  FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY' || true" \
+    fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+        --ansi --phony --query "$INITIAL_QUERY"
+  ```
+- `--multi` now takes an optional integer argument which indicates the maximum
+  number of items that can be selected
+  ```sh
+  seq 100 | fzf --multi 3 --reverse --height 50%
+  ```
+- If a placeholder expression for `--preview` and `execute` action (and the
+  new `reload` action) contains `f` flag, it is replaced to the
+  path of a temporary file that holds the evaluated list. This is useful
+  when you multi-select a large number of items and the length of the
+  evaluated string may exceed [`ARG_MAX`][argmax].
+  ```sh
+  # Press CTRL-A to select 100K items and see the sum of all the numbers
+  seq 100000 | fzf --multi --bind ctrl-a:select-all \
+                   --preview "awk '{sum+=\$1} END {print sum}' {+f}"
+  ```
+- `deselect-all` no longer deselects unmatched items. It is now consistent
+  with `select-all` and `toggle-all` in that it only affects matched items.
+- Due to the limitation of bash, fuzzy completion is enabled by default for
+  a fixed set of commands. A helper function for easily setting up fuzzy
+  completion for any command is now provided.
+  ```sh
+  # usage: _fzf_setup_completion path|dir COMMANDS...
+  _fzf_setup_completion path git kubectl
+  ```
+- Info line style can be changed by `--info=STYLE`
+    - `--info=default`
+    - `--info=inline` (same as old `--inline-info`)
+    - `--info=hidden`
+- Preview window border can be disabled by adding `noborder` to
+  `--preview-window`.
+- When you transform the input with `--with-nth`, the trailing white spaces
+  are removed.
+- `ctrl-\`, `ctrl-]`, `ctrl-^`, and `ctrl-/` can now be used with `--bind`
+- See https://github.com/junegunn/fzf/milestone/15?closed=1 for more details
+
+[argmax]: https://unix.stackexchange.com/questions/120642/what-defines-the-maximum-size-for-a-command-single-argument
+
+0.18.0
+------
+
+- Added placeholder expression for zero-based item index: `{n}` and `{+n}`
+    - `fzf --preview 'echo {n}: {}'`
+- Added color option for the gutter: `--color gutter:-1`
+- Added `--no-unicode` option for drawing borders in non-Unicode, ASCII
+  characters
+- `FZF_PREVIEW_LINES` and `FZF_PREVIEW_COLUMNS` are exported to preview process
+    - fzf still overrides `LINES` and `COLUMNS` as before, but they may be
+      reset by the default shell.
+- Bug fixes and improvements
+    - See https://github.com/junegunn/fzf/milestone/14?closed=1
+- Built with Go 1.12.1
+
+0.17.5
+------
+
+- Bug fixes and improvements
+    - See https://github.com/junegunn/fzf/milestone/13?closed=1
+- Search query longer than the screen width is allowed (up to 300 chars)
+- Built with Go 1.11.1
+
+0.17.4
+------
+
+- Added `--layout` option with a new layout called `reverse-list`.
+    - `--layout=reverse` is a synonym for `--reverse`
+    - `--layout=default` is a synonym for `--no-reverse`
+- Preview window will be updated even when there is no match for the query
+  if any of the placeholder expressions (e.g. `{q}`, `{+}`) evaluates to
+  a non-empty string.
+- More keys for binding: `shift-{up,down}`, `alt-{up,down,left,right}`
+- fzf can now start even when `/dev/tty` is not available by making an
+  educated guess.
+- Updated the default command for Windows.
+- Fixes and improvements on bash/zsh completion
+- install and uninstall scripts now supports generating files under
+  `XDG_CONFIG_HOME` on `--xdg` flag.
+
+See https://github.com/junegunn/fzf/milestone/12?closed=1 for the full list of
+changes.
+
+0.17.3
+------
+- `$LINES` and `$COLUMNS` are exported to preview command so that the command
+  knows the exact size of the preview window.
+- Better error messages when the default command or `$FZF_DEFAULT_COMMAND`
+  fails.
+- Reverted #1061 to avoid having duplicate entries in the list when find
+  command detected a file system loop (#1120). The default command now
+  requires that find supports `-fstype` option.
+- fzf now distinguishes mouse left click and right click (#1130)
+    - Right click is now bound to `toggle` action by default
+    - `--bind` understands `left-click` and `right-click`
+- Added `replace-query` action (#1137)
+    - Replaces query string with the current selection
+- Added `accept-non-empty` action (#1162)
+    - Same as accept, except that it prevents fzf from exiting without any
+      selection
+
+0.17.1
+------
+
+- Fixed custom background color of preview window (#1046)
+- Fixed background color issues of Windows binary
+- Fixed Windows binary to execute command using cmd.exe with no parsing and
+  escaping (#1072)
+- Added support for `window` layout on Vim 8 using Vim 8 terminal (#1055)
+
+0.17.0-2
+--------
+
+A maintenance release for auxiliary scripts. fzf binaries are not updated.
+
+- Experimental support for the builtin terminal of Vim 8
+    - fzf can now run inside GVim
+- Updated Vim plugin to better handle `&shell` issue on fish
+- Fixed a bug of fzf-tmux where invalid output is generated
+- Fixed fzf-tmux to work even when `tput` does not work
+
+0.17.0
+------
+- Performance optimization
+- One can match literal spaces in extended-search mode with a space prepended
+  by a backslash.
+- `--expect` is now additive and can be specified multiple times.
+
+0.16.11
+-------
+- Performance optimization
+- Fixed missing preview update
+
+0.16.10
+-------
+- Fixed invalid handling of ANSI colors in preview window
+- Further improved `--ansi` performance
+
+0.16.9
+------
+- Memory and performance optimization
+    - Around 20% performance improvement for general use cases
+    - Up to 5x faster processing of `--ansi`
+    - Up to 50% reduction of memory usage
+- Bug fixes and usability improvements
+    - Fixed handling of bracketed paste mode
+    - [ERROR] on info line when the default command failed
+    - More efficient rendering of preview window
+    - `--no-clear` updated for repetitive relaunching scenarios
+
+0.16.8
+------
+- New `change` event and `top` action for `--bind`
+    - `fzf --bind change:top`
+        - Move cursor to the top result whenever the query string is changed
+    - `fzf --bind 'ctrl-w:unix-word-rubout+top,ctrl-u:unix-line-discard+top'`
+        - `top` combined with `unix-word-rubout` and `unix-line-discard`
+- Fixed inconsistent tiebreak scores when `--nth` is used
+- Proper display of tab characters in `--prompt`
+- Fixed not to `--cycle` on page-up/page-down to prevent overshoot
+- Git revision in `--version` output
+- Basic support for Cygwin environment
+- Many fixes in Vim plugin on Windows/Cygwin (thanks to @janlazo)
+
+0.16.7
+------
+- Added support for `ctrl-alt-[a-z]` key chords
+- CTRL-Z (SIGSTOP) now works with fzf
+- fzf will export `$FZF_PREVIEW_WINDOW` so that the scripts can use it
+- Bug fixes and improvements in Vim plugin and shell extensions
+
+0.16.6
+------
+- Minor bug fixes and improvements
+- Added `--no-clear` option for scripting purposes
+
+0.16.5
+------
+- Minor bug fixes
+- Added `toggle-preview-wrap` action
+- Built with Go 1.8
+
+0.16.4
+------
+- Added `--border` option to draw border above and below the finder
+- Bug fixes and improvements
+
+0.16.3
+------
+- Fixed a bug where fzf incorrectly display the lines when straddling tab
+  characters are trimmed
+- Placeholder expression used in `--preview` and `execute` action can
+  optionally take `+` flag to be used with multiple selections
+    - e.g. `git log --oneline | fzf --multi --preview 'git show {+1}'`
+- Added `execute-silent` action for executing a command silently without
+  switching to the alternate screen. This is useful when the process is
+  short-lived and you're not interested in its output.
+    - e.g. `fzf --bind 'ctrl-y:execute!(echo -n {} | pbcopy)'`
+- `ctrl-space` is allowed in `--bind`
+
+0.16.2
+------
+- Dropped ncurses dependency
+- Binaries for freebsd, openbsd, arm5, arm6, arm7, and arm8
+- Official 24-bit color support
+- Added support for composite actions in `--bind`. Multiple actions can be
+  chained using `+` separator.
+    - e.g. `fzf --bind 'ctrl-y:execute(echo -n {} | pbcopy)+abort'`
+- `--preview-window` with size 0 is allowed. This is used to make fzf execute
+  preview command in the background without displaying the result.
+- Minor bug fixes and improvements
+
+0.16.1
+------
+- Fixed `--height` option to properly fill the window with the background
+  color
+- Added `half-page-up` and `half-page-down` actions
+- Added `-L` flag to the default find command
+
+0.16.0
+------
+- *Added `--height HEIGHT[%]` option*
+    - fzf can now display finder without occupying the full screen
+- Preview window will truncate long lines by default. Line wrap can be enabled
+  by `:wrap` flag in `--preview-window`.
+- Latin script letters will be normalized before matching so that it's easier
+  to match against accented letters. e.g. `sodanco` can match `Só Danço Samba`.
+    - Normalization can be disabled via `--literal`
+- Added `--filepath-word` to make word-wise movements/actions (`alt-b`,
+  `alt-f`, `alt-bs`, `alt-d`) respect path separators
+
+0.15.9
+------
+- Fixed rendering glitches introduced in 0.15.8
+- The default escape delay is reduced to 50ms and is configurable via
+  `$ESCDELAY`
+- Scroll indicator at the top-right corner of the preview window is always
+  displayed when there's overflow
+- Can now be built with ncurses 6 or tcell to support extra features
+    - *ncurses 6*
+        - Supports more than 256 color pairs
+        - Supports italics
+    - *tcell*
+        - 24-bit color support
+    - See https://github.com/junegunn/fzf/blob/master/BUILD.md
+
 0.15.8
 ------
 - Updated ANSI processor to handle more VT-100 escape sequences

Dockerfile

@@ -0,0 +1,11 @@
+FROM archlinux/base:latest
+RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make
+RUN gem install --no-document minitest
+RUN echo '. /usr/share/bash-completion/completions/git' >> ~/.bashrc
+RUN echo '. ~/.bashrc' >> ~/.bash_profile
+
+# Do not set default PS1
+RUN rm -f /etc/bash.bashrc
+COPY . /fzf
+RUN cd /fzf && make install && ./install --all
+CMD tmux new 'set -o pipefail; ruby /fzf/test/test_go.rb | tee out && touch ok' && cat out && [ -e ok ]

Makefile

@@ -0,0 +1,136 @@
+GO             ?= go
+GOOS           ?= $(word 1, $(subst /, " ", $(word 4, $(shell go version))))
+
+MAKEFILE       := $(realpath $(lastword $(MAKEFILE_LIST)))
+ROOT_DIR       := $(shell dirname $(MAKEFILE))
+SOURCES        := $(wildcard *.go src/*.go src/*/*.go) $(MAKEFILE)
+
+REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES))
+BUILD_FLAGS    := -a -ldflags "-X main.revision=$(REVISION) -w -extldflags=$(LDFLAGS)" -tags "$(TAGS)"
+
+BINARY32       := fzf-$(GOOS)_386
+BINARY64       := fzf-$(GOOS)_amd64
+BINARYARM5     := fzf-$(GOOS)_arm5
+BINARYARM6     := fzf-$(GOOS)_arm6
+BINARYARM7     := fzf-$(GOOS)_arm7
+BINARYARM8     := fzf-$(GOOS)_arm8
+BINARYPPC64LE  := fzf-$(GOOS)_ppc64le
+VERSION        := $(shell awk -F= '/version =/ {print $$2}' src/constants.go | tr -d "\" ")
+RELEASE32      := fzf-$(VERSION)-$(GOOS)_386
+RELEASE64      := fzf-$(VERSION)-$(GOOS)_amd64
+RELEASEARM5    := fzf-$(VERSION)-$(GOOS)_arm5
+RELEASEARM6    := fzf-$(VERSION)-$(GOOS)_arm6
+RELEASEARM7    := fzf-$(VERSION)-$(GOOS)_arm7
+RELEASEARM8    := fzf-$(VERSION)-$(GOOS)_arm8
+RELEASEPPC64LE := fzf-$(VERSION)-$(GOOS)_ppc64le
+
+# https://en.wikipedia.org/wiki/Uname
+UNAME_M := $(shell uname -m)
+ifeq ($(UNAME_M),x86_64)
+	BINARY := $(BINARY64)
+else ifeq ($(UNAME_M),amd64)
+	BINARY := $(BINARY64)
+else ifeq ($(UNAME_M),i686)
+	BINARY := $(BINARY32)
+else ifeq ($(UNAME_M),i386)
+	BINARY := $(BINARY32)
+else ifeq ($(UNAME_M),armv5l)
+	BINARY := $(BINARYARM5)
+else ifeq ($(UNAME_M),armv6l)
+	BINARY := $(BINARYARM6)
+else ifeq ($(UNAME_M),armv7l)
+	BINARY := $(BINARYARM7)
+else ifeq ($(UNAME_M),armv8l)
+	BINARY := $(BINARYARM8)
+else ifeq ($(UNAME_M),aarch64)
+	BINARY := $(BINARYARM8)
+else ifeq ($(UNAME_M),ppc64le)
+	BINARY := $(BINARYPPC64LE)
+else
+$(error "Build on $(UNAME_M) is not supported, yet.")
+endif
+
+all: target/$(BINARY)
+
+target:
+	mkdir -p $@
+
+ifeq ($(GOOS),windows)
+release: target/$(BINARY32) target/$(BINARY64)
+	cd target && cp -f $(BINARY32) fzf.exe && zip $(RELEASE32).zip fzf.exe
+	cd target && cp -f $(BINARY64) fzf.exe && zip $(RELEASE64).zip fzf.exe
+	cd target && rm -f fzf.exe
+else ifeq ($(GOOS),linux)
+release: target/$(BINARY32) target/$(BINARY64) target/$(BINARYARM5) target/$(BINARYARM6) target/$(BINARYARM7) target/$(BINARYARM8) target/$(BINARYPPC64LE)
+	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
+	cd target && cp -f $(BINARYARM5) fzf && tar -czf $(RELEASEARM5).tgz fzf
+	cd target && cp -f $(BINARYARM6) fzf && tar -czf $(RELEASEARM6).tgz fzf
+	cd target && cp -f $(BINARYARM7) fzf && tar -czf $(RELEASEARM7).tgz fzf
+	cd target && cp -f $(BINARYARM8) fzf && tar -czf $(RELEASEARM8).tgz fzf
+	cd target && cp -f $(BINARYPPC64LE) fzf && tar -czf $(RELEASEPPC64LE).tgz fzf
+	cd target && rm -f fzf
+else
+release: target/$(BINARY32) target/$(BINARY64)
+	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
+	cd target && rm -f fzf
+endif
+
+release-all: clean test
+	GOOS=darwin  make release
+	GOOS=linux   make release
+	GOOS=freebsd make release
+	GOOS=openbsd make release
+	GOOS=windows make release
+
+test: $(SOURCES)
+	SHELL=/bin/sh GOOS= $(GO) test -v -tags "$(TAGS)" \
+				github.com/junegunn/fzf/src \
+				github.com/junegunn/fzf/src/algo \
+				github.com/junegunn/fzf/src/tui \
+				github.com/junegunn/fzf/src/util
+
+install: bin/fzf
+
+clean:
+	$(RM) -r target
+
+target/$(BINARY32): $(SOURCES)
+	GOARCH=386 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARY64): $(SOURCES)
+	GOARCH=amd64 $(GO) build $(BUILD_FLAGS) -o $@
+
+# https://github.com/golang/go/wiki/GoArm
+target/$(BINARYARM5): $(SOURCES)
+	GOARCH=arm GOARM=5 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARYARM6): $(SOURCES)
+	GOARCH=arm GOARM=6 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARYARM7): $(SOURCES)
+	GOARCH=arm GOARM=7 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARYARM8): $(SOURCES)
+	GOARCH=arm64 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARYPPC64LE): $(SOURCES)
+	GOARCH=ppc64le $(GO) build $(BUILD_FLAGS) -o $@
+
+bin/fzf: target/$(BINARY) | bin
+	cp -f target/$(BINARY) bin/fzf
+
+docker:
+	docker build -t fzf-arch .
+	docker run -it fzf-arch tmux
+
+docker-test:
+	docker build -t fzf-arch .
+	docker run -it fzf-arch
+
+update:
+	$(GO) get -u
+	$(GO) mod tidy
+
+.PHONY: all release release-all test install clean docker docker-test update

README-VIM.md

@@ -0,0 +1,326 @@
+FZF Vim integration
+===================
+
+Summary
+-------
+
+The Vim plugin of fzf provides two core functions, and `:FZF` command which is
+the basic file selector command built on top of them.
+
+1. **`fzf#run([spec dict])`**
+    - Starts fzf inside Vim with the given spec
+    - `:call fzf#run({'source': 'ls'})`
+2. **`fzf#wrap([spec dict]) -> (dict)`**
+    - Takes a spec for `fzf#run` and returns an extended version of it with
+      additional options for addressing global preferences (`g:fzf_xxx`)
+        - `:echo fzf#wrap({'source': 'ls'})`
+    - We usually *wrap* a spec with `fzf#wrap` before passing it to `fzf#run`
+        - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
+3. **`:FZF [fzf_options string] [path string]`**
+    - Basic fuzzy file selector
+    - A reference implementation for those who don't want to write VimScript
+      to implement custom commands
+    - If you're looking for more such commands, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
+
+The most important of all is `fzf#run`, but it would be easier to understand
+the whole if we start off with `:FZF` command.
+
+`:FZF[!]`
+---------
+
+```vim
+" Look for files under current directory
+:FZF
+
+" Look for files under your home directory
+:FZF ~
+
+" With fzf command-line options
+:FZF --reverse --info=inline /tmp
+
+" Bang version starts fzf in fullscreen mode
+:FZF!
+```
+
+Similarly to [ctrlp.vim](https://github.com/kien/ctrlp.vim), use enter key,
+`CTRL-T`, `CTRL-X` or `CTRL-V` to open selected files in the current window,
+in new tabs, in horizontal splits, or in vertical splits respectively.
+
+Note that the environment variables `FZF_DEFAULT_COMMAND` and
+`FZF_DEFAULT_OPTS` also apply here.
+
+### Configuration
+
+- `g:fzf_action`
+    - Customizable extra key bindings for opening selected files in different ways
+- `g:fzf_layout`
+    - Determines the size and position of fzf window
+- `g:fzf_colors`
+    - Customizes fzf colors to match the current color scheme
+- `g:fzf_history_dir`
+    - Enables history feature
+
+#### Examples
+
+```vim
+" This is the default extra key bindings
+let g:fzf_action = {
+  \ 'ctrl-t': 'tab split',
+  \ 'ctrl-x': 'split',
+  \ 'ctrl-v': 'vsplit' }
+
+" An action can be a reference to a function that processes selected lines
+function! s:build_quickfix_list(lines)
+  call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+  copen
+  cc
+endfunction
+
+let g:fzf_action = {
+  \ 'ctrl-q': function('s:build_quickfix_list'),
+  \ 'ctrl-t': 'tab split',
+  \ 'ctrl-x': 'split',
+  \ 'ctrl-v': 'vsplit' }
+
+" Default fzf layout
+" - down / up / left / right
+let g:fzf_layout = { 'down': '~40%' }
+
+" You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
+let g:fzf_layout = { 'window': 'enew' }
+let g:fzf_layout = { 'window': '-tabnew' }
+let g:fzf_layout = { 'window': '10new' }
+
+" Customize fzf colors to match your color scheme
+" - fzf#wrap translates this to a set of `--color` options
+let g:fzf_colors =
+\ { 'fg':      ['fg', 'Normal'],
+  \ 'bg':      ['bg', 'Normal'],
+  \ 'hl':      ['fg', 'Comment'],
+  \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
+  \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
+  \ 'hl+':     ['fg', 'Statement'],
+  \ 'info':    ['fg', 'PreProc'],
+  \ 'border':  ['fg', 'Ignore'],
+  \ 'prompt':  ['fg', 'Conditional'],
+  \ 'pointer': ['fg', 'Exception'],
+  \ 'marker':  ['fg', 'Keyword'],
+  \ 'spinner': ['fg', 'Label'],
+  \ 'header':  ['fg', 'Comment'] }
+
+" Enable per-command history
+" - History files will be stored in the specified directory
+" - When set, CTRL-N and CTRL-P will be bound to 'next-history' and
+"   'previous-history' instead of 'down' and 'up'.
+let g:fzf_history_dir = '~/.local/share/fzf-history'
+```
+
+`fzf#run`
+---------
+
+`fzf#run()` function is the core of Vim integration. It takes a single
+dictionary argument, *a spec*, and starts fzf process accordingly. At the very
+least, specify `sink` option to tell what it should do with the selected
+entry.
+
+```vim
+call fzf#run({'sink': 'e'})
+```
+
+We haven't specified the `source`, so this is equivalent to starting fzf on
+command line without standard input pipe; fzf will use find command (or
+`$FZF_DEFAULT_COMMAND` if defined) to list the files under the current
+directory. When you select one, it will open it with the sink, `:e` command.
+If you want to open it in a new tab, you can pass `:tabedit` command instead
+as the sink.
+
+```vim
+call fzf#run({'sink': 'tabedit'})
+```
+
+Instead of using the default find command, you can use any shell command as
+the source. The following example will list the files managed by git. It's
+equivalent to running `git ls-files | fzf` on shell.
+
+```vim
+call fzf#run({'source': 'git ls-files', 'sink': 'e'})
+```
+
+fzf options can be specified as `options` entry in spec dictionary.
+
+```vim
+call fzf#run({'sink': 'tabedit', 'options': '--multi --reverse'})
+```
+
+You can also pass a layout option if you don't want fzf window to take up the
+entire screen.
+
+```vim
+" up / down / left / right / window are allowed
+call fzf#run({'source': 'git ls-files', 'sink': 'e', 'left': '40%'})
+call fzf#run({'source': 'git ls-files', 'sink': 'e', 'window': '30vnew'})
+```
+
+`source` doesn't have to be an external shell command, you can pass a Vim
+array as the source. In the next example, we pass the names of color
+schemes as the source to implement a color scheme selector.
+
+```vim
+call fzf#run({'source': map(split(globpath(&rtp, 'colors/*.vim')),
+            \               'fnamemodify(v:val, ":t:r")'),
+            \ 'sink': 'colo', 'left': '25%'})
+```
+
+The following table summarizes the available options.
+
+| Option name                | Type          | Description                                                           |
+| -------------------------- | ------------- | ----------------------------------------------------------------      |
+| `source`                   | string        | External command to generate input to fzf (e.g. `find .`)             |
+| `source`                   | list          | Vim list as input to fzf                                              |
+| `sink`                     | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)            |
+| `sink`                     | funcref       | Reference to function to process each selected item                   |
+| `sink*`                    | funcref       | Similar to `sink`, but takes the list of output lines at once         |
+| `options`                  | string/list   | Options to fzf                                                        |
+| `dir`                      | string        | Working directory                                                     |
+| `up`/`down`/`left`/`right` | number/string | (Layout) Window position and size (e.g. `20`, `50%`)                  |
+| `window` (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g. `vertical aboveleft 30new`) |
+
+`options` entry can be either a string or a list. For simple cases, string
+should suffice, but prefer to use list type to avoid escaping issues.
+
+```vim
+call fzf#run({'options': '--reverse --prompt "C:\\Program Files\\"'})
+call fzf#run({'options': ['--reverse', '--prompt', 'C:\Program Files\']})
+```
+
+`fzf#wrap`
+----------
+
+We have seen that several aspects of `:FZF` command can be configured with
+a set of global option variables; different ways to open files
+(`g:fzf_action`), window position and size (`g:fzf_layout`), color palette
+(`g:fzf_colors`), etc.
+
+So how can we make our custom `fzf#run` calls also respect those variables?
+Simply by *"wrapping"* the spec dictionary with `fzf#wrap` before passing it
+to `fzf#run`.
+
+- **`fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`**
+    - All arguments are optional. Usually we only need to pass a spec dictionary.
+    - `name` is for managing history files. It is ignored if
+      `g:fzf_history_dir` is not defined.
+    - `fullscreen` can be either `0` or `1` (default: 0).
+
+`fzf#wrap` takes a spec and returns an extended version of it (also
+a dictionary) with additional options for addressing global preferences. You
+can examine the return value of it like so:
+
+```vim
+echo fzf#wrap({'source': 'ls'})
+```
+
+After we *"wrap"* our spec, we pass it to `fzf#run`.
+
+```vim
+call fzf#run(fzf#wrap({'source': 'ls'}))
+```
+
+Now it supports `CTRL-T`, `CTRL-V`, and `CTRL-X` key bindings and it opens fzf
+window according to `g:fzf_layout` setting.
+
+To make it easier to use, let's define `LS` command.
+
+```vim
+command! LS call fzf#run(fzf#wrap({'source': 'ls'}))
+```
+
+Type `:LS` and see how it works.
+
+We would like to make `:LS!` (bang version) open fzf in fullscreen, just like
+`:FZF!`. Add `-bang` to command definition, and use `<bang>` value to set
+the last `fullscreen` argument of `fzf#wrap` (see `:help <bang>`).
+
+```vim
+" On :LS!, <bang> evaluates to '!', and '!0' becomes 1
+command! -bang LS call fzf#run(fzf#wrap({'source': 'ls'}, <bang>0))
+```
+
+Our `:LS` command will be much more useful if we can pass a directory argument
+to it, so that something like `:LS /tmp` is possible.
+
+```vim
+command! -bang -complete=dir -nargs=* LS
+    \ call fzf#run(fzf#wrap({'source': 'ls', 'dir': <q-args>}, <bang>0))
+```
+
+Lastly, if you have enabled `g:fzf_history_dir`, you might want to assign
+a unique name to our command and pass it as the first argument to `fzf#wrap`.
+
+```vim
+" The query history for this command will be stored as 'ls' inside g:fzf_history_dir.
+" The name is ignored if g:fzf_history_dir is not defined.
+command! -bang -complete=dir -nargs=* LS
+    \ call fzf#run(fzf#wrap('ls', {'source': 'ls', 'dir': <q-args>}, <bang>0))
+```
+
+Tips
+----
+
+### fzf inside terminal buffer
+
+The latest versions of Vim and Neovim include builtin terminal emulator
+(`:terminal`) and fzf will start in a terminal buffer in the following cases:
+
+- On Neovim
+- On GVim
+- On Terminal Vim with a non-default layout
+    - `call fzf#run({'left': '30%'})` or `let g:fzf_layout = {'left': '30%'}`
+
+#### Starting fzf in Neovim floating window
+
+```vim
+" Using floating windows of Neovim to start fzf
+if has('nvim')
+  let $FZF_DEFAULT_OPTS .= ' --border --margin=0,2'
+
+  function! FloatingFZF()
+    let width = float2nr(&columns * 0.9)
+    let height = float2nr(&lines * 0.6)
+    let opts = { 'relative': 'editor',
+               \ 'row': (&lines - height) / 2,
+               \ 'col': (&columns - width) / 2,
+               \ 'width': width,
+               \ 'height': height }
+
+    let win = nvim_open_win(nvim_create_buf(v:false, v:true), v:true, opts)
+    call setwinvar(win, '&winhighlight', 'NormalFloat:Normal')
+  endfunction
+
+  let g:fzf_layout = { 'window': 'call FloatingFZF()' }
+endif
+
+```
+
+#### Hide statusline
+
+When fzf starts in a terminal buffer, the file type of the buffer is set to
+`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
+the window.
+
+For example, if you use the default layout (`{'down': '~40%'}`) on Neovim, you
+might want to temporarily disable the statusline for a cleaner look.
+
+```vim
+if has('nvim') && !exists('g:fzf_layout')
+  autocmd! FileType fzf
+  autocmd  FileType fzf set laststatus=0 noshowmode noruler
+    \| autocmd BufLeave <buffer> set laststatus=2 showmode ruler
+endif
+```
+
+[License](LICENSE)
+------------------
+
+The MIT License (MIT)
+
+Copyright (c) 2019 Junegunn Choi

README.md

@@ -3,18 +3,61 @@
 
 fzf is a general-purpose command-line fuzzy finder.
 
-![](https://raw.github.com/junegunn/i/master/fzf.gif)
+<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf-preview.png" width=640>
+
+It's an interactive Unix filter for command-line that can be used with any
+list; files, command history, processes, hostnames, bookmarks, git commits,
+etc.
 
 Pros
 ----
 
-- No dependencies
+- Portable, no dependencies
 - Blazingly fast
 - The most comprehensive feature set
-- Flexible layout using tmux panes
+- Flexible layout
 - Batteries included
     - Vim/Neovim plugin, key bindings and fuzzy auto-completion
 
+Table of Contents
+-----------------
+
+   * [Installation](#installation)
+      * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
+      * [Using git](#using-git)
+      * [Using Linux package managers](#using-linux-package-managers)
+      * [Windows](#windows)
+      * [As Vim plugin](#as-vim-plugin)
+   * [Upgrading fzf](#upgrading-fzf)
+   * [Building fzf](#building-fzf)
+   * [Usage](#usage)
+      * [Using the finder](#using-the-finder)
+      * [Layout](#layout)
+      * [Search syntax](#search-syntax)
+      * [Environment variables](#environment-variables)
+      * [Options](#options)
+      * [Demo](#demo)
+   * [Examples](#examples)
+   * [fzf-tmux script](#fzf-tmux-script)
+   * [Key bindings for command line](#key-bindings-for-command-line)
+   * [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
+      * [Files and directories](#files-and-directories)
+      * [Process IDs](#process-ids)
+      * [Host names](#host-names)
+      * [Environment variables / Aliases](#environment-variables--aliases)
+      * [Settings](#settings)
+      * [Supported commands](#supported-commands)
+   * [Vim plugin](#vim-plugin)
+   * [Advanced topics](#advanced-topics)
+      * [Performance](#performance)
+      * [Executing external programs](#executing-external-programs)
+      * [Preview window](#preview-window)
+   * [Tips](#tips)
+      * [Respecting .gitignore](#respecting-gitignore)
+      * [Fish shell](#fish-shell)
+   * [Related projects](#related-projects)
+   * [<a href="LICENSE">License</a>](#license)
+
 Installation
 ------------
 
@@ -32,9 +75,25 @@ stuff.
 
 [bin]: https://github.com/junegunn/fzf-bin/releases
 
+### Using Homebrew or Linuxbrew
+
+You can use [Homebrew](http://brew.sh/) or [Linuxbrew](http://linuxbrew.sh/)
+to install fzf.
+
+```sh
+brew install fzf
+
+# To install useful key bindings and fuzzy completion:
+$(brew --prefix)/opt/fzf/install
+```
+
+fzf is also available [via MacPorts][portfile]: `sudo port install fzf`
+
+[portfile]: https://github.com/macports/macports-ports/blob/master/sysutils/fzf/Portfile
+
 ### Using git
 
-Clone this repository and run
+Alternatively, you can "git clone" this repository to any directory and run
 [install](https://github.com/junegunn/fzf/blob/master/install) script.
 
 ```sh
@@ -42,37 +101,78 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 ~/.fzf/install
 ```
 
-### Using Homebrew
+### Using Linux package managers
 
-On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
+| Distro       | Command                    |
+| ---          | ---                        |
+| Alpine Linux | `sudo apk add fzf`         |
+| Arch Linux   | `sudo pacman -S fzf`       |
+| Debian       | `sudo apt-get install fzf` |
+| Fedora       | `sudo dnf install fzf`     |
+| FreeBSD      | `pkg install fzf`          |
+| NixOS        | `nix-env -iA nixpkgs.fzf`  |
+| openSUSE     | `sudo zypper install fzf`  |
 
-```sh
+Shell extensions (key bindings and fuzzy auto-completion) and Vim/Neovim
-brew install fzf
+plugin may or may not be enabled by default depending on the package manager.
+Refer to the package documentation for more information.
 
-# Install shell extensions
+### Windows
-/usr/local/opt/fzf/install
-```
 
-### Vim plugin
+Pre-built binaries for Windows can be downloaded [here][bin]. fzf is also
+available via [Chocolatey][choco] and [Scoop][scoop]:
 
-You can manually add the directory to `&runtimepath` as follows,
+| Package manager | Command             |
+| ---             | ---                 |
+| Chocolatey      | `choco install fzf` |
+| Scoop           | `scoop install fzf` |
+
+[choco]: https://chocolatey.org/packages/fzf
+[scoop]: https://github.com/ScoopInstaller/Main/blob/master/bucket/fzf.json
+
+Known issues and limitations on Windows can be found on [the wiki
+page][windows-wiki].
+
+[windows-wiki]: https://github.com/junegunn/fzf/wiki/Windows
+
+### As Vim plugin
+
+Once you have fzf installed, you can enable it inside Vim simply by adding the
+directory to `&runtimepath` in your Vim configuration file. The path may
+differ depending on the package manager.
 
 ```vim
-" If installed using git
-set rtp+=~/.fzf
-
 " If installed using Homebrew
 set rtp+=/usr/local/opt/fzf
+
+" If installed using git
+set rtp+=~/.fzf
 ```
 
-But it's recommended that you use a plugin manager like
+If you use [vim-plug](https://github.com/junegunn/vim-plug), the same can be
-[vim-plug](https://github.com/junegunn/vim-plug).
+written as:
 
 ```vim
-Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
+" If installed using Homebrew
+Plug '/usr/local/opt/fzf'
+
+" If installed using git
+Plug '~/.fzf'
 ```
 
-### Upgrading fzf
+But instead of separately installing fzf on your system (using Homebrew or
+"git clone") and enabling it on Vim (adding it to `&runtimepath`), you can use
+vim-plug to do both.
+
+```vim
+" PlugInstall and PlugUpdate will clone fzf in ~/.fzf and run the install script
+Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
+  " Both options are optional. You don't have to install fzf in ~/.fzf
+  " and you don't have to run the install script if you use fzf only in Vim.
+```
+
+Upgrading fzf
+-------------
 
 fzf is being actively developed and you might want to upgrade it once in a
 while. Please follow the instruction below depending on the installation
@@ -80,21 +180,18 @@ method used.
 
 - git: `cd ~/.fzf && git pull && ./install`
 - brew: `brew update; brew reinstall fzf`
+- chocolatey: `choco upgrade fzf`
 - vim-plug: `:PlugUpdate fzf`
 
-### Windows
+Building fzf
+------------
 
-Pre-built binaries for Windows can be downloaded [here][bin]. However, other
+See [BUILD.md](BUILD.md).
-components of the project may not work on Windows. You might want to consider
-installing fzf on [Windows Subsystem for Linux][wsl] where everything runs
-flawlessly.
-
-[wsl]: https://blogs.msdn.microsoft.com/wsl/
 
 Usage
 -----
 
-fzf will launch curses-based finder, read the list from STDIN, and write the
+fzf will launch interactive finder, read the list from STDIN, and write the
 selected item to STDOUT.
 
 ```sh
@@ -118,20 +215,44 @@ vim $(fzf)
 - Mouse: scroll, click, double-click; shift-click and shift-scroll on
   multi-select mode
 
+#### Layout
+
+fzf by default starts in fullscreen mode, but you can make it start below the
+cursor with `--height` option.
+
+```sh
+vim $(fzf --height 40%)
+```
+
+Also check out `--reverse` and `--layout` options if you prefer
+"top-down" layout instead of the default "bottom-up" layout.
+
+```sh
+vim $(fzf --height 40% --reverse)
+```
+
+You can add these options to `$FZF_DEFAULT_OPTS` so that they're applied by
+default. For example,
+
+```sh
+export FZF_DEFAULT_OPTS='--height 40% --layout=reverse --border'
+```
+
 #### Search syntax
 
 Unless otherwise specified, fzf starts in "extended-search mode" where you can
 type in multiple search terms delimited by spaces. e.g. `^music .mp3$ sbtrkt
 !fire`
 
-| Token    | Match type                 | Description                       |
+| Token     | Match type                 | Description                          |
-| -------- | -------------------------- | --------------------------------- |
+| --------- | -------------------------- | ------------------------------------ |
-| `sbtrkt` | fuzzy-match                | Items that match `sbtrkt`         |
+| `sbtrkt`  | fuzzy-match                | Items that match `sbtrkt`            |
-| `^music` | prefix-exact-match         | Items that start with `music`     |
+| `'wild`   | exact-match (quoted)       | Items that include `wild`            |
-| `.mp3$`  | suffix-exact-match         | Items that end with `.mp3`        |
+| `^music`  | prefix-exact-match         | Items that start with `music`        |
-| `'wild`  | exact-match (quoted)       | Items that include `wild`         |
+| `.mp3$`   | suffix-exact-match         | Items that end with `.mp3`           |
-| `!fire`  | inverse-exact-match        | Items that do not include `fire`  |
+| `!fire`   | inverse-exact-match        | Items that do not include `fire`     |
-| `!.mp3$` | inverse-suffix-exact-match | Items that do not end with `.mp3` |
+| `!^music` | inverse-prefix-exact-match | Items that do not start with `music` |
+| `!.mp3$`  | inverse-suffix-exact-match | Items that do not end with `.mp3`    |
 
 If you don't prefer fuzzy matching and do not wish to "quote" every word,
 start fzf with `-e` or `--exact` option. Note that when  `--exact` is set,
@@ -149,15 +270,22 @@ or `py`.
 
 - `FZF_DEFAULT_COMMAND`
     - Default command to use when input is tty
-    - e.g. `export FZF_DEFAULT_COMMAND='ag -g ""'`
+    - e.g. `export FZF_DEFAULT_COMMAND='fd --type f'`
 - `FZF_DEFAULT_OPTS`
     - Default options
-    - e.g. `export FZF_DEFAULT_OPTS="--reverse --inline-info"`
+    - e.g. `export FZF_DEFAULT_OPTS="--layout=reverse --inline-info"`
 
 #### Options
 
 See the man page (`man fzf`) for the full list of options.
 
+#### Demo
+If you learn by watching videos, check out this screencast by [@samoshkin](https://github.com/samoshkin) to explore `fzf` features.
+
+<a title="fzf - command-line fuzzy finder" href="https://www.youtube.com/watch?v=qgG5Jhi_Els">
+  <img src="https://i.imgur.com/vtG8olE.png" width="640">
+</a>
+
 Examples
 --------
 
@@ -184,26 +312,33 @@ cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
 It will still work even when you're not on tmux, silently ignoring `-[udlr]`
 options, so you can invariably use `fzf-tmux` in your scripts.
 
-Key bindings for command line
+Alternatively, you can use `--height HEIGHT[%]` option not to start fzf in
+fullscreen mode.
+
+```sh
+fzf --height 40%
+```
+
+Key bindings for command-line
 -----------------------------
 
 The install script will setup the following key bindings for bash, zsh, and
 fish.
 
-- `CTRL-T` - Paste the selected files and directories onto the command line
+- `CTRL-T` - Paste the selected files and directories onto the command-line
     - Set `FZF_CTRL_T_COMMAND` to override the default command
     - Set `FZF_CTRL_T_OPTS` to pass additional options
-- `CTRL-R` - Paste the selected command from history onto the command line
+- `CTRL-R` - Paste the selected command from history onto the command-line
-    - Sort is disabled by default to respect chronological ordering
+    - If you want to see the commands in chronological order, press `CTRL-R`
-    - Press `CTRL-R` again to toggle sort
+      again which toggles sorting by relevance
     - Set `FZF_CTRL_R_OPTS` to pass additional options
 - `ALT-C` - cd into the selected directory
     - Set `FZF_ALT_C_COMMAND` to override the default command
     - Set `FZF_ALT_C_OPTS` to pass additional options
 
-If you're on a tmux session, fzf will start in a split pane. You may disable
+If you're on a tmux session, you can start fzf in a split pane by setting
-this tmux integration by setting `FZF_TMUX` to 0, or change the height of the
+`FZF_TMUX` to 1, and change the height of the pane with `FZF_TMUX_HEIGHT`
-pane with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
+(e.g. `20`, `50%`).
 
 If you use vi mode on bash, you need to add `set -o vi` *before* `source
 ~/.fzf.bash` in your .bashrc, so that it correctly sets up key bindings for vi
@@ -245,7 +380,7 @@ cd ~/github/fzf**<TAB>
 
 #### Process IDs
 
-Fuzzy completion for PIDs is provided for kill command. In this case
+Fuzzy completion for PIDs is provided for kill command. In this case,
 there is no trigger sequence, just press tab key after kill command.
 
 ```sh
@@ -280,12 +415,17 @@ export FZF_COMPLETION_TRIGGER='~~'
 # Options to fzf command
 export FZF_COMPLETION_OPTS='+c -x'
 
-# Use ag instead of the default find command for listing candidates.
+# Use fd (https://github.com/sharkdp/fd) instead of the default find
-# - The first argument to the function is the base path to start traversal
+# command for listing path candidates.
-# - Note that ag only lists files not directories
+# - The first argument to the function ($1) is the base path to start traversal
 # - See the source code (completion.{bash,zsh}) for the details.
 _fzf_compgen_path() {
-  ag -g "" "$1"
+  fd --hidden --follow --exclude ".git" . "$1"
+}
+
+# Use fd to generate the list for directory completion
+_fzf_compgen_dir() {
+  fd --type d --hidden --follow --exclude ".git" . "$1"
 }
 ```
 
@@ -293,155 +433,176 @@ _fzf_compgen_path() {
 
 On bash, fuzzy completion is enabled only for a predefined set of commands
 (`complete | grep _fzf` to see the list). But you can enable it for other
-commands as well like follows.
+commands as well by using `_fzf_setup_completion` helper function.
 
 ```sh
-# There are also _fzf_path_completion and _fzf_dir_completion
+# usage: _fzf_setup_completion path|dir COMMANDS...
-complete -F _fzf_file_completion -o default -o bashdefault doge
+_fzf_setup_completion path ag git kubectl
+_fzf_setup_completion dir tree
 ```
 
-Usage as Vim plugin
+Vim plugin
--------------------
+----------
 
-This repository only enables basic integration with Vim. If you're looking for
+See [README-VIM.md](README-VIM.md).
-more, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
 
-(Note: To use fzf in GVim, an external terminal emulator is required.)
+Advanced topics
+---------------
 
-#### `:FZF[!]`
+### Performance
 
-If you have set up fzf for Vim, `:FZF` command will be added.
+fzf is fast and is [getting even faster][perf]. Performance should not be
+a problem in most use cases. However, you might want to be aware of the
+options that affect the performance.
 
-```vim
+- `--ansi` tells fzf to extract and parse ANSI color codes in the input and it
-" Look for files under current directory
+  makes the initial scanning slower. So it's not recommended that you add it
-:FZF
+  to your `$FZF_DEFAULT_OPTS`.
+- `--nth` makes fzf slower as fzf has to tokenize each line.
+- `--with-nth` makes fzf slower as fzf has to tokenize and reassemble each
+  line.
+- If you absolutely need better performance, you can consider using
+  `--algo=v1` (the default being `v2`) to make fzf use a faster greedy
+  algorithm. However, this algorithm is not guaranteed to find the optimal
+  ordering of the matches and is not recommended.
 
-" Look for files under your home directory
+[perf]: https://junegunn.kr/images/fzf-0.17.0.png
-:FZF ~
 
-" With options
+### Executing external programs
-:FZF --no-sort --reverse --inline-info /tmp
 
-" Bang version starts in fullscreen instead of using tmux pane or Neovim split
+You can set up key bindings for starting external processes without leaving
-:FZF!
+fzf (`execute`, `execute-silent`).
+
+```bash
+# Press F1 to open the file with less without leaving fzf
+# Press CTRL-Y to copy the line to clipboard and aborts fzf (requires pbcopy)
+fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort'
 ```
 
-Similarly to [ctrlp.vim](https://github.com/kien/ctrlp.vim), use enter key,
+See *KEY BINDINGS* section of the man page for details.
-`CTRL-T`, `CTRL-X` or `CTRL-V` to open selected files in the current window,
-in new tabs, in horizontal splits, or in vertical splits respectively.
 
-Note that the environment variables `FZF_DEFAULT_COMMAND` and
+### Preview window
-`FZF_DEFAULT_OPTS` also apply here. Refer to [the wiki page][fzf-config] for
-customization.
 
-[fzf-config]: https://github.com/junegunn/fzf/wiki/Configuring-Vim-plugin
+When `--preview` option is set, fzf automatically starts an external process with
+the current line as the argument and shows the result in the split window.
 
-#### `fzf#run`
+```bash
+# {} is replaced to the single-quoted string of the focused line
+fzf --preview 'cat {}'
+```
 
-For more advanced uses, you can use `fzf#run([options])` function with the
+Since the preview window is updated only after the process is complete, it's
-following options.
+important that the command finishes quickly.
 
-| Option name                | Type          | Description                                                      |
+```bash
-| -------------------------- | ------------- | ---------------------------------------------------------------- |
+# Use head instead of cat so that the command doesn't take too long to finish
-| `source`                   | string        | External command to generate input to fzf (e.g. `find .`)        |
+fzf --preview 'head -100 {}'
-| `source`                   | list          | Vim list as input to fzf                                         |
+```
-| `sink`                     | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)       |
-| `sink`                     | funcref       | Reference to function to process each selected item              |
-| `sink*`                    | funcref       | Similar to `sink`, but takes the list of output lines at once    |
-| `options`                  | string        | Options to fzf                                                   |
-| `dir`                      | string        | Working directory                                                |
-| `up`/`down`/`left`/`right` | number/string | Use tmux pane with the given size (e.g. `20`, `50%`)             |
-| `window` (*Neovim only*)   | string        | Command to open fzf window (e.g. `vertical aboveleft 30new`)     |
-| `launcher`                 | string        | External terminal emulator to start fzf with (GVim only)         |
-| `launcher`                 | funcref       | Function for generating `launcher` string (GVim only)            |
 
-Examples can be found on [the wiki
+Preview window supports ANSI colors, so you can use any program that
-page](https://github.com/junegunn/fzf/wiki/Examples-(vim)).
+syntax-highlights the content of a file.
 
-#### `fzf#wrap`
+- Bat: https://github.com/sharkdp/bat
+- Highlight: http://www.andre-simon.de/doku/highlight/en/highlight.php
 
-`fzf#wrap([name string,] [opts dict,] [fullscreen boolean])` is a helper
+```bash
-function that decorates the options dictionary so that it understands
+fzf --preview 'bat --style=numbers --color=always {} | head -500'
-`g:fzf_layout`, `g:fzf_action`, `g:fzf_colors`, and `g:fzf_history_dir` like
+```
-`:FZF`.
 
-```vim
+You can customize the size, position, and border of the preview window using
-command! -bang MyStuff
+`--preview-window` option, and the foreground and background color of it with
-  \ call fzf#run(fzf#wrap('my-stuff', {'dir': '~/my-stuff'}, <bang>0))
+`--color` option. For example,
+
+```bash
+fzf --height 40% --layout reverse --info inline --border \
+    --preview 'file {}' --preview-window down:1:noborder \
+    --color 'fg:#bbccdd,fg+:#ddeeff,bg:#334455,preview-bg:#223344,border:#778899'
+```
+
+See the man page (`man fzf`) for the full list of options.
+
+For more advanced examples, see [Key bindings for git with fzf][fzf-git]
+([code](https://gist.github.com/junegunn/8b572b8d4b5eddd8b85e5f4d40f17236)).
+
+[fzf-git]: https://junegunn.kr/2016/07/fzf-git/
+
+----
+
+Since fzf is a general-purpose text filter rather than a file finder, **it is
+not a good idea to add `--preview` option to your `$FZF_DEFAULT_OPTS`**.
+
+```sh
+# *********************
+# ** DO NOT DO THIS! **
+# *********************
+export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always {} | head -500"'
+
+# bat doesn't work with any input other than the list of files
+ps -ef | fzf
+seq 100 | fzf
+history | fzf
 ```
 
 Tips
 ----
 
-#### Rendering issues
+#### Respecting `.gitignore`
 
-If you have any rendering issues, check the following:
+You can use [fd](https://github.com/sharkdp/fd),
-
+[ripgrep](https://github.com/BurntSushi/ripgrep), or [the silver
-1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
+searcher](https://github.com/ggreer/the_silver_searcher) instead of the
-   contains `256` (e.g. `xterm-256color`)
+default find command to traverse the file system while respecting
-2. If you're on screen or tmux, `$TERM` should be either `screen` or
+`.gitignore`.
-   `screen-256color`
-3. Some terminal emulators (e.g. mintty) have problem displaying default
-   background color and make some text unable to read. In that case, try
-   `--black` option. And if it solves your problem, I recommend including it
-   in `FZF_DEFAULT_OPTS` for further convenience.
-4. If you still have problem, try `--no-256` option or even `--no-color`.
-
-#### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
-
-[ag](https://github.com/ggreer/the_silver_searcher) or
-[pt](https://github.com/monochromegane/the_platinum_searcher) will do the
-filtering:
 
 ```sh
-# Feed the output of ag into fzf
+# Feed the output of fd into fzf
-ag -g "" | fzf
+fd --type f | fzf
 
-# Setting ag as the default source for fzf
+# Setting fd as the default source for fzf
-export FZF_DEFAULT_COMMAND='ag -g ""'
+export FZF_DEFAULT_COMMAND='fd --type f'
 
-# Now fzf (w/o pipe) will use ag instead of find
+# Now fzf (w/o pipe) will use fd instead of find
 fzf
 
 # To apply the command to CTRL-T as well
 export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
 ```
 
-If you don't want to exclude hidden files, use the following command:
+If you want the command to follow symbolic links, and don't want it to exclude
+hidden files, use the following command:
 
 ```sh
-export FZF_DEFAULT_COMMAND='ag --hidden --ignore .git -g ""'
+export FZF_DEFAULT_COMMAND='fd --type f --hidden --follow --exclude .git'
-```
-
-#### `git ls-tree` for fast traversal
-
-If you're running fzf in a large git repository, `git ls-tree` can boost up the
-speed of the traversal.
-
-```sh
-export FZF_DEFAULT_COMMAND='
-  (git ls-tree -r --name-only HEAD ||
-   find . -path "*/\.*" -prune -o -type f -print -o -type l -print |
-      sed s/^..//) 2> /dev/null'
 ```
 
 #### Fish shell
 
-It's [a known bug of fish](https://github.com/fish-shell/fish-shell/issues/1362)
+`CTRL-T` key binding of fish, unlike those of bash and zsh, will use the last
-that it doesn't allow reading from STDIN in command substitution, which means
+token on the command-line as the root directory for the recursive search. For
-simple `vim (fzf)` won't work as expected. The workaround is to store the result
+instance, hitting `CTRL-T` at the end of the following command-line
-of fzf to a temporary file.
 
 ```sh
-fzf > $TMPDIR/fzf.result; and vim (cat $TMPDIR/fzf.result)
+ls /var/
 ```
 
-License
+will list all files and directories under `/var/`.
--------
 
-[MIT](LICENSE)
+When using a custom `FZF_CTRL_T_COMMAND`, use the unexpanded `$dir` variable to
+make use of this feature. `$dir` defaults to `.` when the last token is not a
+valid directory. Example:
 
-Author
+```sh
-------
+set -g FZF_CTRL_T_COMMAND "command find -L \$dir -type f 2> /dev/null | sed '1d; s#^\./##'"
+```
 
-Junegunn Choi
+Related projects
+----------------
+
+https://github.com/junegunn/fzf/wiki/Related-projects
+
+[License](LICENSE)
+------------------
+
+The MIT License (MIT)
+
+Copyright (c) 2019 Junegunn Choi

bin/fzf-tmux

@@ -16,8 +16,8 @@ skip=""
 swap=""
 close=""
 term=""
-[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines)
+[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines) || lines=$(tmux display-message -p "#{pane_height}")
-[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols)
+[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols) || columns=$(tmux display-message -p "#{pane_width}")
 
 help() {
   >&2 echo 'usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
@@ -114,11 +114,14 @@ if [[ -z "$TMUX" || "$opt" =~ ^-h && "$columns" -le 40 || ! "$opt" =~ ^-h && "$l
   exit $?
 fi
 
+# --height option is not allowed
+args+=("--no-height")
+
 # Handle zoomed tmux pane by moving it to a temp window
 if tmux list-panes -F '#F' | grep -q Z; then
   zoomed=1
   original_window=$(tmux display-message -p "#{window_id}")
-  tmp_window=$(tmux new-window -d -P -F "#{window_id}" "bash -c 'while :; do for c in \\| / - \\\\; do sleep 0.2; printf \"\\r\$c fzf-tmux is running\\r\"; done; done'")
+  tmp_window=$(tmux new-window -d -P -F "#{window_id}" "bash -c 'while :; do for c in \\| / - '\\;' do sleep 0.2; printf \"\\r\$c fzf-tmux is running\\r\"; done; done'")
   tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
 fi
 
@@ -131,17 +134,29 @@ fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
 fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
 fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
 cleanup() {
-  rm -f $argsf $fifo1 $fifo2 $fifo3
+  \rm -f $argsf $fifo1 $fifo2 $fifo3
+
+  # Restore tmux window options
+  if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
+    eval "tmux ${tmux_win_opts[@]}"
+  fi
 
   # Remove temp window if we were zoomed
   if [[ -n "$zoomed" ]]; then
+    tmux display-message -p "#{window_id}" > /dev/null
     tmux swap-pane -t $original_window \; \
       select-window -t $original_window \; \
       kill-window -t $tmp_window \; \
       resize-pane -Z
   fi
+
+  if [ $# -gt 0 ]; then
+    trap - EXIT
+    exit 130
+  fi
 }
-trap cleanup EXIT SIGINT SIGTERM
+trap 'cleanup 1' SIGUSR1
+trap 'cleanup' EXIT
 
 envs="env TERM=$TERM "
 [[ -n "$FZF_DEFAULT_OPTS"    ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
@@ -160,18 +175,24 @@ for arg in "${args[@]}"; do
   opts="$opts \"$arg\""
 done
 
+pppid=$$
+echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" > $argsf
+close="; trap - EXIT SIGINT SIGTERM $close"
+
+tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
+
 if [[ -n "$term" ]] || [[ -t 0 ]]; then
-  cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" >> $argsf
   TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
     set-window-option remain-on-exit off \;\
-    split-window $opt "cd $(printf %q "$PWD");$envs bash $argsf" $swap \
+    split-window $opt "$envs bash -c 'cd $(printf %q "$PWD"); exec -a fzf bash $argsf'" $swap \
     > /dev/null 2>&1
 else
   mkfifo $fifo1
-  cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
   TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
     set-window-option remain-on-exit off \;\
-    split-window $opt "$envs bash $argsf" $swap \
+    split-window $opt "$envs bash -c 'exec -a fzf bash $argsf'" $swap \
     > /dev/null 2>&1
   cat <&0 > $fifo1 &
 fi

doc/fzf.txt

@@ -0,0 +1,344 @@
+fzf.txt	fzf	Last change: November 23 2019
+FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
+==============================================================================
+
+  FZF Vim integration
+    Summary
+    :FZF[!]
+      Configuration
+        Examples
+    fzf#run
+    fzf#wrap
+    Tips
+      fzf inside terminal buffer
+        Starting fzf in Neovim floating window
+        Hide statusline
+    License
+
+FZF VIM INTEGRATION                                        *fzf-vim-integration*
+==============================================================================
+
+
+SUMMARY                                                            *fzf-summary*
+==============================================================================
+
+The Vim plugin of fzf provides two core functions, and `:FZF` command which is
+the basic file selector command built on top of them.
+
+ 1. `fzf#run([spec dict])`
+   - Starts fzf inside Vim with the given spec
+   - `:call fzf#run({'source': 'ls'})`
+ 2. `fzf#wrap([spec dict]) -> (dict)`
+   - Takes a spec for `fzf#run` and returns an extended version of it with
+     additional options for addressing global preferences (`g:fzf_xxx`)
+     - `:echo fzf#wrap({'source': 'ls'})`
+   - We usually wrap a spec with `fzf#wrap` before passing it to `fzf#run`
+     - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
+ 3. `:FZF [fzf_options string] [path string]`
+   - Basic fuzzy file selector
+   - A reference implementation for those who don't want to write VimScript to
+     implement custom commands
+   - If you're looking for more such commands, check out {fzf.vim}{1} project.
+
+The most important of all is `fzf#run`, but it would be easier to understand
+the whole if we start off with `:FZF` command.
+
+                                       {1} https://github.com/junegunn/fzf.vim
+
+
+:FZF[!]
+==============================================================================
+
+                                                                          *:FZF*
+>
+    " Look for files under current directory
+    :FZF
+
+    " Look for files under your home directory
+    :FZF ~
+
+    " With fzf command-line options
+    :FZF --reverse --info=inline /tmp
+
+    " Bang version starts fzf in fullscreen mode
+    :FZF!
+<
+Similarly to {ctrlp.vim}{2}, use enter key, CTRL-T, CTRL-X or CTRL-V to open
+selected files in the current window, in new tabs, in horizontal splits, or in
+vertical splits respectively.
+
+Note that the environment variables `FZF_DEFAULT_COMMAND` and
+`FZF_DEFAULT_OPTS` also apply here.
+
+                                         {2} https://github.com/kien/ctrlp.vim
+
+
+< Configuration >_____________________________________________________________~
+                                                             *fzf-configuration*
+
+                      *g:fzf_action* *g:fzf_layout* *g:fzf_colors* *g:fzf_history_dir*
+
+ - `g:fzf_action`
+   - Customizable extra key bindings for opening selected files in different
+     ways
+ - `g:fzf_layout`
+   - Determines the size and position of fzf window
+ - `g:fzf_colors`
+   - Customizes fzf colors to match the current color scheme
+ - `g:fzf_history_dir`
+   - Enables history feature
+
+
+Examples~
+                                                                  *fzf-examples*
+>
+    " This is the default extra key bindings
+    let g:fzf_action = {
+      \ 'ctrl-t': 'tab split',
+      \ 'ctrl-x': 'split',
+      \ 'ctrl-v': 'vsplit' }
+
+    " An action can be a reference to a function that processes selected lines
+    function! s:build_quickfix_list(lines)
+      call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+      copen
+      cc
+    endfunction
+
+    let g:fzf_action = {
+      \ 'ctrl-q': function('s:build_quickfix_list'),
+      \ 'ctrl-t': 'tab split',
+      \ 'ctrl-x': 'split',
+      \ 'ctrl-v': 'vsplit' }
+
+    " Default fzf layout
+    " - down / up / left / right
+    let g:fzf_layout = { 'down': '~40%' }
+
+    " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
+    let g:fzf_layout = { 'window': 'enew' }
+    let g:fzf_layout = { 'window': '-tabnew' }
+    let g:fzf_layout = { 'window': '10new' }
+
+    " Customize fzf colors to match your color scheme
+    " - fzf#wrap translates this to a set of `--color` options
+    let g:fzf_colors =
+    \ { 'fg':      ['fg', 'Normal'],
+      \ 'bg':      ['bg', 'Normal'],
+      \ 'hl':      ['fg', 'Comment'],
+      \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
+      \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
+      \ 'hl+':     ['fg', 'Statement'],
+      \ 'info':    ['fg', 'PreProc'],
+      \ 'border':  ['fg', 'Ignore'],
+      \ 'prompt':  ['fg', 'Conditional'],
+      \ 'pointer': ['fg', 'Exception'],
+      \ 'marker':  ['fg', 'Keyword'],
+      \ 'spinner': ['fg', 'Label'],
+      \ 'header':  ['fg', 'Comment'] }
+
+    " Enable per-command history
+    " - History files will be stored in the specified directory
+    " - When set, CTRL-N and CTRL-P will be bound to 'next-history' and
+    "   'previous-history' instead of 'down' and 'up'.
+    let g:fzf_history_dir = '~/.local/share/fzf-history'
+<
+
+FZF#RUN
+==============================================================================
+
+                                                                       *fzf#run*
+
+`fzf#run()` function is the core of Vim integration. It takes a single
+dictionary argument, a spec, and starts fzf process accordingly. At the very
+least, specify `sink` option to tell what it should do with the selected
+entry.
+>
+    call fzf#run({'sink': 'e'})
+<
+We haven't specified the `source`, so this is equivalent to starting fzf on
+command line without standard input pipe; fzf will use find command (or
+`$FZF_DEFAULT_COMMAND` if defined) to list the files under the current
+directory. When you select one, it will open it with the sink, `:e` command.
+If you want to open it in a new tab, you can pass `:tabedit` command instead
+as the sink.
+>
+    call fzf#run({'sink': 'tabedit'})
+<
+Instead of using the default find command, you can use any shell command as
+the source. The following example will list the files managed by git. It's
+equivalent to running `git ls-files | fzf` on shell.
+>
+    call fzf#run({'source': 'git ls-files', 'sink': 'e'})
+<
+fzf options can be specified as `options` entry in spec dictionary.
+>
+    call fzf#run({'sink': 'tabedit', 'options': '--multi --reverse'})
+<
+You can also pass a layout option if you don't want fzf window to take up the
+entire screen.
+>
+    " up / down / left / right / window are allowed
+    call fzf#run({'source': 'git ls-files', 'sink': 'e', 'left': '40%'})
+    call fzf#run({'source': 'git ls-files', 'sink': 'e', 'window': '30vnew'})
+<
+`source` doesn't have to be an external shell command, you can pass a Vim
+array as the source. In the next example, we pass the names of color schemes
+as the source to implement a color scheme selector.
+>
+    call fzf#run({'source': map(split(globpath(&rtp, 'colors/*.vim')),
+                \               'fnamemodify(v:val, ":t:r")'),
+                \ 'sink': 'colo', 'left': '25%'})
+<
+The following table summarizes the available options.
+
+ ---------------------------+---------------+----------------------------------------------------------------------
+ Option name                | Type          | Description                                                          ~
+ ---------------------------+---------------+----------------------------------------------------------------------
+  `source`                    | string        | External command to generate input to fzf (e.g.  `find .` )
+  `source`                    | list          | Vim list as input to fzf
+  `sink`                      | string        | Vim command to handle the selected item (e.g.  `e` ,  `tabe` )
+  `sink`                      | funcref       | Reference to function to process each selected item
+  `sink*`                     | funcref       | Similar to  `sink` , but takes the list of output lines at once
+  `options`                   | string/list   | Options to fzf
+  `dir`                       | string        | Working directory
+  `up` / `down` / `left` / `right`  | number/string | (Layout) Window position and size (e.g.  `20` ,  `50%` )
+  `window`  (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g.  `vertical aboveleft 30new` )
+ ---------------------------+---------------+----------------------------------------------------------------------
+
+`options` entry can be either a string or a list. For simple cases, string
+should suffice, but prefer to use list type to avoid escaping issues.
+>
+    call fzf#run({'options': '--reverse --prompt "C:\\Program Files\\"'})
+    call fzf#run({'options': ['--reverse', '--prompt', 'C:\Program Files\']})
+<
+
+FZF#WRAP
+==============================================================================
+
+                                                                      *fzf#wrap*
+
+We have seen that several aspects of `:FZF` command can be configured with a
+set of global option variables; different ways to open files (`g:fzf_action`),
+window position and size (`g:fzf_layout`), color palette (`g:fzf_colors`),
+etc.
+
+So how can we make our custom `fzf#run` calls also respect those variables?
+Simply by "wrapping" the spec dictionary with `fzf#wrap` before passing it to
+`fzf#run`.
+
+ - `fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`
+   - All arguments are optional. Usually we only need to pass a spec
+     dictionary.
+   - `name` is for managing history files. It is ignored if `g:fzf_history_dir`
+     is not defined.
+   - `fullscreen` can be either `0` or `1` (default: 0).
+
+`fzf#wrap` takes a spec and returns an extended version of it (also a
+dictionary) with additional options for addressing global preferences. You can
+examine the return value of it like so:
+>
+    echo fzf#wrap({'source': 'ls'})
+<
+After we "wrap" our spec, we pass it to `fzf#run`.
+>
+    call fzf#run(fzf#wrap({'source': 'ls'}))
+<
+Now it supports CTRL-T, CTRL-V, and CTRL-X key bindings and it opens fzf
+window according to `g:fzf_layout` setting.
+
+To make it easier to use, let's define `LS` command.
+>
+    command! LS call fzf#run(fzf#wrap({'source': 'ls'}))
+<
+Type `:LS` and see how it works.
+
+We would like to make `:LS!` (bang version) open fzf in fullscreen, just like
+`:FZF!`. Add `-bang` to command definition, and use <bang> value to set the
+last `fullscreen` argument of `fzf#wrap` (see :help <bang>).
+>
+    " On :LS!, <bang> evaluates to '!', and '!0' becomes 1
+    command! -bang LS call fzf#run(fzf#wrap({'source': 'ls'}, <bang>0))
+<
+Our `:LS` command will be much more useful if we can pass a directory argument
+to it, so that something like `:LS /tmp` is possible.
+>
+    command! -bang -complete=dir -nargs=* LS
+        \ call fzf#run(fzf#wrap({'source': 'ls', 'dir': <q-args>}, <bang>0))
+<
+Lastly, if you have enabled `g:fzf_history_dir`, you might want to assign a
+unique name to our command and pass it as the first argument to `fzf#wrap`.
+>
+    " The query history for this command will be stored as 'ls' inside g:fzf_history_dir.
+    " The name is ignored if g:fzf_history_dir is not defined.
+    command! -bang -complete=dir -nargs=* LS
+        \ call fzf#run(fzf#wrap('ls', {'source': 'ls', 'dir': <q-args>}, <bang>0))
+<
+
+TIPS                                                                  *fzf-tips*
+==============================================================================
+
+
+< fzf inside terminal buffer >________________________________________________~
+                                                    *fzf-inside-terminal-buffer*
+
+The latest versions of Vim and Neovim include builtin terminal emulator
+(`:terminal`) and fzf will start in a terminal buffer in the following cases:
+
+ - On Neovim
+ - On GVim
+ - On Terminal Vim with a non-default layout
+   - `call fzf#run({'left': '30%'})` or `let g:fzf_layout = {'left': '30%'}`
+
+
+Starting fzf in Neovim floating window~
+                                    *fzf-starting-fzf-in-neovim-floating-window*
+>
+    " Using floating windows of Neovim to start fzf
+    if has('nvim')
+      let $FZF_DEFAULT_OPTS .= ' --border --margin=0,2'
+
+      function! FloatingFZF()
+        let width = float2nr(&columns * 0.9)
+        let height = float2nr(&lines * 0.6)
+        let opts = { 'relative': 'editor',
+                   \ 'row': (&lines - height) / 2,
+                   \ 'col': (&columns - width) / 2,
+                   \ 'width': width,
+                   \ 'height': height }
+
+        let win = nvim_open_win(nvim_create_buf(v:false, v:true), v:true, opts)
+        call setwinvar(win, '&winhighlight', 'NormalFloat:Normal')
+      endfunction
+
+      let g:fzf_layout = { 'window': 'call FloatingFZF()' }
+    endif
+
+<
+
+Hide statusline~
+                                                           *fzf-hide-statusline*
+
+When fzf starts in a terminal buffer, the file type of the buffer is set to
+`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
+the window.
+
+For example, if you use the default layout (`{'down': '~40%'}`) on Neovim, you
+might want to temporarily disable the statusline for a cleaner look.
+>
+    if has('nvim') && !exists('g:fzf_layout')
+      autocmd! FileType fzf
+      autocmd  FileType fzf set laststatus=0 noshowmode noruler
+        \| autocmd BufLeave <buffer> set laststatus=2 showmode ruler
+    endif
+<
+
+LICENSE                                                            *fzf-license*
+==============================================================================
+
+The MIT License (MIT)
+
+Copyright (c) 2019 Junegunn Choi
+
+==============================================================================
+vim:tw=78:sw=2:ts=2:ft=help:norl:nowrap:

go.mod

@@ -0,0 +1,19 @@
+module github.com/junegunn/fzf
+
+require (
+	github.com/gdamore/encoding v0.0.0-20151215212835-b23993cbb635 // indirect
+	github.com/gdamore/tcell v0.0.0-20170915061752-0a0db94084df
+	github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e // indirect
+	github.com/jtolds/gls v4.2.1+incompatible // indirect
+	github.com/lucasb-eyer/go-colorful v0.0.0-20170223221042-c900de9dbbc7 // indirect
+	github.com/mattn/go-isatty v0.0.0-20160806122752-66b8e73f3f5c
+	github.com/mattn/go-runewidth v0.0.0-20170201023540-14207d285c6c
+	github.com/mattn/go-shellwords v1.0.3
+	github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
+	github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c // indirect
+	golang.org/x/crypto v0.0.0-20170728183002-558b6879de74
+	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 // indirect
+	golang.org/x/text v0.0.0-20170530162606-4ee4af566555 // indirect
+)
+
+go 1.13

go.sum

@@ -0,0 +1,26 @@
+github.com/gdamore/encoding v0.0.0-20151215212835-b23993cbb635 h1:hheUEMzaOie/wKeIc1WPa7CDVuIO5hqQxjS+dwTQEnI=
+github.com/gdamore/encoding v0.0.0-20151215212835-b23993cbb635/go.mod h1:yrQYJKKDTrHmbYxI7CYi+/hbdiDT2m4Hj+t0ikCjsrQ=
+github.com/gdamore/tcell v0.0.0-20170915061752-0a0db94084df h1:tLS1QD2puA1USLvkEnGfOt+Zp2ijtNIK3z2YFaIZZR4=
+github.com/gdamore/tcell v0.0.0-20170915061752-0a0db94084df/go.mod h1:tqyG50u7+Ctv1w5VX67kLzKcj9YXR/JSBZQq/+mLl1A=
+github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e h1:JKmoR8x90Iww1ks85zJ1lfDGgIiMDuIptTOhJq+zKyg=
+github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
+github.com/jtolds/gls v4.2.1+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/lucasb-eyer/go-colorful v0.0.0-20170223221042-c900de9dbbc7 h1:G52I+Gk/wPD4HKvKT0Vxxp9OUPxqKs3OK6rffSPtNkA=
+github.com/lucasb-eyer/go-colorful v0.0.0-20170223221042-c900de9dbbc7/go.mod h1:NXg0ArsFk0Y01623LgUqoqcouGDB+PwCCQlrwrG6xJ4=
+github.com/mattn/go-isatty v0.0.0-20160806122752-66b8e73f3f5c h1:3nKFouDdpgGUV/uerJcYWH45ZbJzX0SiVWfTgmUeTzc=
+github.com/mattn/go-isatty v0.0.0-20160806122752-66b8e73f3f5c/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
+github.com/mattn/go-runewidth v0.0.0-20170201023540-14207d285c6c h1:eFzthqtg3W6Pihj3DMTXLAF4f+ge5r5Ie5g6HLIZAF0=
+github.com/mattn/go-runewidth v0.0.0-20170201023540-14207d285c6c/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-shellwords v1.0.3 h1:K/VxK7SZ+cvuPgFSLKi5QPI9Vr/ipOf4C1gN+ntueUk=
+github.com/mattn/go-shellwords v1.0.3/go.mod h1:3xCvwCdWdlDJUrvuMn7Wuy9eWs4pE8vqg+NOMyg4B2o=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d h1:zE9ykElWQ6/NYmHa3jpm/yHnI4xSofP+UP6SpjHcSeM=
+github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c h1:Ho+uVpkel/udgjbwB5Lktg9BtvJSh2DT0Hi6LPSyI2w=
+github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c/go.mod h1:XDJAKZRPZ1CvBcN2aX5YOUTYGHki24fSF0Iv48Ibg0s=
+golang.org/x/crypto v0.0.0-20170728183002-558b6879de74 h1:/0jf0Cx3u07Ma4EzUA6NIGuvk9hb3Br6i9V8atthkwk=
+golang.org/x/crypto v0.0.0-20170728183002-558b6879de74/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
+golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 h1:rM0ROo5vb9AdYJi1110yjWGMej9ITfKddS89P3Fkhug=
+golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.0.0-20170530162606-4ee4af566555 h1:pjwO9HxObpgZBurDvTLFbSinaf3+cKpTAjVfiGaHwrI=
+golang.org/x/text v0.0.0-20170530162606-4ee4af566555/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

install

@@ -2,14 +2,15 @@
 
 set -u
 
-[[ "$@" =~ --pre ]] && version=0.15.8 pre=1 ||
+version=0.20.0
-                       version=0.15.8 pre=0
-
 auto_completion=
 key_bindings=
 update_config=2
 binary_arch=
-allow_legacy=
+shells="bash zsh fish"
+prefix='~/.fzf'
+prefix_expand=~/.fzf
+fish_dir=${XDG_CONFIG_HOME:-$HOME/.config}/fish
 
 help() {
   cat << EOF
@@ -19,10 +20,15 @@ usage: $0 [OPTIONS]
     --bin                Download fzf binary only; Do not generate ~/.fzf.{bash,zsh}
     --all                Download fzf binary and update configuration files
                          to enable key bindings and fuzzy completion
+    --xdg                Generate files under \$XDG_CONFIG_HOME/fzf
     --[no-]key-bindings  Enable/disable key bindings (CTRL-T, CTRL-R, ALT-C)
     --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
     --[no-]update-rc     Whether or not to update shell configuration files
 
+    --no-bash            Do not set up bash configuration
+    --no-zsh             Do not set up zsh configuration
+    --no-fish            Do not set up fish configuration
+
     --32                 Download 32-bit binary
     --64                 Download 64-bit binary
 EOF
@@ -38,7 +44,11 @@ for opt in "$@"; do
       auto_completion=1
       key_bindings=1
       update_config=1
-      allow_legacy=1
+      ;;
+    --xdg)
+      prefix='"${XDG_CONFIG_HOME:-$HOME/.config}"/fzf/fzf'
+      prefix_expand=${XDG_CONFIG_HOME:-$HOME/.config}/fzf/fzf
+      mkdir -p "${XDG_CONFIG_HOME:-$HOME/.config}/fzf"
       ;;
     --key-bindings)    key_bindings=1    ;;
     --no-key-bindings) key_bindings=0    ;;
@@ -48,7 +58,10 @@ for opt in "$@"; do
     --no-update-rc)    update_config=0   ;;
     --32)              binary_arch=386   ;;
     --64)              binary_arch=amd64 ;;
-    --bin|--pre)       ;;
+    --bin)             ;;
+    --no-bash)         shells=${shells/bash/} ;;
+    --no-zsh)          shells=${shells/zsh/} ;;
+    --no-fish)         shells=${shells/fish/} ;;
     *)
       echo "unknown option: $opt"
       help
@@ -58,17 +71,19 @@ for opt in "$@"; do
 done
 
 cd "$(dirname "${BASH_SOURCE[0]}")"
-fzf_base="$(pwd)"
+fzf_base=$(pwd)
+fzf_base_esc=$(printf %q "$fzf_base")
 
 ask() {
-  # If stdin is a tty, we are "interactive".
+  while true; do
-  # non-interactive shell: wait for a linefeed
+    read -p "$1 ([y]/n) " -r
-  #     interactive shell: continue after a single keypress
+    REPLY=${REPLY:-"y"}
-  read_n=$([ -t 0 ] && echo "-n 1")
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
-
+      return 1
-  read -p "$1 ([y]/n) " $read_n -r
+    elif [[ $REPLY =~ ^[Nn]$ ]]; then
-  echo
+      return 0
-  [[ $REPLY =~ ^[Nn]$ ]]
+    fi
+  done
 }
 
 check_binary() {
@@ -78,33 +93,25 @@ check_binary() {
   if [ $? -ne 0 ]; then
     echo "Error: $output"
     binary_error="Invalid binary"
-  elif [ "$version" != "$output" ]; then
-    echo "$output != $version"
-    binary_error="Invalid version"
   else
-    echo "$output"
+    output=${output/ */}
-    binary_error=""
+    if [ "$version" != "$output" ]; then
-    return 0
+      echo "$output != $version"
+      binary_error="Invalid version"
+    else
+      echo "$output"
+      binary_error=""
+      return 0
+    fi
   fi
   rm -f "$fzf_base"/bin/fzf
   return 1
 }
 
-symlink() {
-  echo "  - Creating symlink: bin/$1 -> bin/fzf"
-  (cd "$fzf_base"/bin &&
-   rm -f fzf &&
-   ln -sf $1 fzf)
-  if [ $? -ne 0 ]; then
-    binary_error="Failed to create symlink"
-    return 1
-  fi
-}
-
 link_fzf_in_path() {
   if which_fzf="$(command -v fzf)"; then
     echo "  - Found in \$PATH"
-    echo "  - Creating symlink: $which_fzf -> bin/fzf"
+    echo "  - Creating symlink: bin/fzf -> $which_fzf"
     (cd "$fzf_base"/bin && rm -f fzf && ln -sf "$which_fzf" fzf)
     check_binary && return
   fi
@@ -112,23 +119,32 @@ link_fzf_in_path() {
 }
 
 try_curl() {
-  command -v curl > /dev/null && curl -fL $1 | tar -xz
+  command -v curl > /dev/null &&
+  if [[ $1 =~ tgz$ ]]; then
+    curl -fL $1 | tar -xzf -
+  else
+    local temp=${TMPDIR:-/tmp}/fzf.zip
+    curl -fLo "$temp" $1 && unzip -o "$temp" && rm -f "$temp"
+  fi
 }
 
 try_wget() {
-  command -v wget > /dev/null && wget -O - $1 | tar -xz
+  command -v wget > /dev/null &&
+  if [[ $1 =~ tgz$ ]]; then
+    wget -O - $1 | tar -xzf -
+  else
+    local temp=${TMPDIR:-/tmp}/fzf.zip
+    wget -O "$temp" $1 && unzip -o "$temp" && rm -f "$temp"
+  fi
 }
 
 download() {
   echo "Downloading bin/fzf ..."
-  if [ $pre = 0 ]; then
+  if [[ ! "$version" =~ alpha ]]; then
     if [ -x "$fzf_base"/bin/fzf ]; then
       echo "  - Already exists"
       check_binary && return
     fi
-    if [ -x "$fzf_base"/bin/$1 ]; then
-      symlink $1 && check_binary && return
-    fi
     link_fzf_in_path && return
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
@@ -137,7 +153,10 @@ download() {
     return
   fi
 
-  local url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}.tgz
+  local url
+  [[ "$version" =~ alpha ]] &&
+    url=https://github.com/junegunn/fzf-bin/releases/download/alpha/${1} ||
+    url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}
   set -o pipefail
   if ! (try_curl $url || try_wget $url); then
     set +o pipefail
@@ -146,12 +165,12 @@ download() {
   fi
   set +o pipefail
 
-  if [ ! -f $1 ]; then
+  if [ ! -f fzf ]; then
     binary_error="Failed to download ${1}"
     return
   fi
 
-  chmod +x $1 && symlink $1 && check_binary
+  chmod +x fzf && check_binary
 }
 
 # Try to download binary executable
@@ -159,84 +178,29 @@ archi=$(uname -sm)
 binary_available=1
 binary_error=""
 case "$archi" in
-  Darwin\ x86_64) download fzf-$version-darwin_${binary_arch:-amd64} ;;
+  Darwin\ *64)   download fzf-$version-darwin_${binary_arch:-amd64}.tgz  ;;
-  Darwin\ i*86)   download fzf-$version-darwin_${binary_arch:-386}   ;;
+  Darwin\ *86)   download fzf-$version-darwin_${binary_arch:-386}.tgz    ;;
-  Linux\ x86_64)  download fzf-$version-linux_${binary_arch:-amd64}  ;;
+  Linux\ armv5*) download fzf-$version-linux_${binary_arch:-arm5}.tgz    ;;
-  Linux\ i*86)    download fzf-$version-linux_${binary_arch:-386}    ;;
+  Linux\ armv6*) download fzf-$version-linux_${binary_arch:-arm6}.tgz    ;;
-  *)              binary_available=0 binary_error=1  ;;
+  Linux\ armv7*) download fzf-$version-linux_${binary_arch:-arm7}.tgz    ;;
+  Linux\ armv8*) download fzf-$version-linux_${binary_arch:-arm8}.tgz    ;;
+  Linux\ aarch64*) download fzf-$version-linux_${binary_arch:-arm8}.tgz  ;;
+  Linux\ *64)    download fzf-$version-linux_${binary_arch:-amd64}.tgz   ;;
+  Linux\ *86)    download fzf-$version-linux_${binary_arch:-386}.tgz     ;;
+  FreeBSD\ *64)  download fzf-$version-freebsd_${binary_arch:-amd64}.tgz ;;
+  FreeBSD\ *86)  download fzf-$version-freebsd_${binary_arch:-386}.tgz   ;;
+  OpenBSD\ *64)  download fzf-$version-openbsd_${binary_arch:-amd64}.tgz ;;
+  OpenBSD\ *86)  download fzf-$version-openbsd_${binary_arch:-386}.tgz   ;;
+  CYGWIN*\ *64)  download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
+  MINGW*\ *86)   download fzf-$version-windows_${binary_arch:-386}.zip   ;;
+  MINGW*\ *64)   download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
+  MSYS*\ *86)    download fzf-$version-windows_${binary_arch:-386}.zip   ;;
+  MSYS*\ *64)    download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
+  Windows*\ *86) download fzf-$version-windows_${binary_arch:-386}.zip   ;;
+  Windows*\ *64) download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
+  *)             binary_available=0 binary_error=1 ;;
 esac
 
-install_ruby_fzf() {
-  if [ -z "$allow_legacy" ]; then
-    ask "Do you want to install legacy Ruby version instead?" && exit 1
-  fi
-  echo "Installing legacy Ruby version ..."
-
-  # ruby executable
-  echo -n "Checking Ruby executable ... "
-  ruby=$(command -v ruby)
-  if [ $? -ne 0 ]; then
-    echo "ruby executable not found !!!"
-    exit 1
-  fi
-
-  # System ruby is preferred
-  system_ruby=/usr/bin/ruby
-  if [ -x $system_ruby ] && [ $system_ruby != "$ruby" ]; then
-    $system_ruby --disable-gems -rcurses -e0 2> /dev/null
-    [ $? -eq 0 ] && ruby=$system_ruby
-  fi
-
-  echo "OK ($ruby)"
-
-  # Curses-support
-  echo -n "Checking Curses support ... "
-  "$ruby" -rcurses -e0 2> /dev/null
-  if [ $? -eq 0 ]; then
-    echo "OK"
-  else
-    echo "Not found"
-    echo "Installing 'curses' gem ... "
-    if (( EUID )); then
-      /usr/bin/env gem install curses --user-install
-    else
-      /usr/bin/env gem install curses
-    fi
-    if [ $? -ne 0 ]; then
-      echo
-      echo "Failed to install 'curses' gem."
-      if [[ $(uname -r) =~ 'ARCH' ]]; then
-        echo "Make sure that base-devel package group is installed."
-      fi
-      exit 1
-    fi
-  fi
-
-  # Ruby version
-  echo -n "Checking Ruby version ... "
-  "$ruby" -e 'exit RUBY_VERSION >= "1.9"'
-  if [ $? -eq 0 ]; then
-    echo ">= 1.9"
-    "$ruby" --disable-gems -rcurses -e0 2> /dev/null
-    if [ $? -eq 0 ]; then
-      fzf_cmd="$ruby --disable-gems $fzf_base/fzf"
-    else
-      fzf_cmd="$ruby $fzf_base/fzf"
-    fi
-  else
-    echo "< 1.9"
-    fzf_cmd="$ruby $fzf_base/fzf"
-  fi
-
-  # Create fzf script
-  echo -n "Creating wrapper script for fzf ... "
-  rm -f "$fzf_base"/bin/fzf
-  echo "#!/bin/sh" > "$fzf_base"/bin/fzf
-  echo "$fzf_cmd \"\$@\"" >> "$fzf_base"/bin/fzf
-  chmod +x "$fzf_base"/bin/fzf
-  echo "OK"
-}
-
 cd "$fzf_base"
 if [ -n "$binary_error" ]; then
   if [ $binary_available -eq 0 ]; then
@@ -245,26 +209,37 @@ if [ -n "$binary_error" ]; then
     echo "  - $binary_error !!!"
   fi
   if command -v go > /dev/null; then
-    echo -n "Building binary (go get -u github.com/junegunn/fzf/src/fzf) ... "
+    echo -n "Building binary (go get -u github.com/junegunn/fzf) ... "
     if [ -z "${GOPATH-}" ]; then
       export GOPATH="${TMPDIR:-/tmp}/fzf-gopath"
       mkdir -p "$GOPATH"
     fi
-    if go get -u github.com/junegunn/fzf/src/fzf; then
+    if go get -u github.com/junegunn/fzf; then
       echo "OK"
       cp "$GOPATH/bin/fzf" "$fzf_base/bin/"
     else
-      echo "Failed to build binary ..."
+      echo "Failed to build binary. Installation failed."
-      install_ruby_fzf
+      exit 1
     fi
   else
-    echo "go executable not found. Cannot build binary ..."
+    echo "go executable not found. Installation failed."
-    install_ruby_fzf
+    exit 1
   fi
 fi
 
 [[ "$*" =~ "--bin" ]] && exit 0
 
+for s in $shells; do
+  if ! command -v "$s" > /dev/null; then
+    shells=${shells/$s/}
+  fi
+done
+
+if [[ ${#shells} -lt 3 ]]; then
+  echo "No shell configuration to be updated."
+  exit 0
+fi
+
 # Auto-completion
 if [ -z "$auto_completion" ]; then
   ask "Do you want to enable fuzzy auto-completion?"
@@ -278,11 +253,10 @@ if [ -z "$key_bindings" ]; then
 fi
 
 echo
-has_zsh=$(command -v zsh > /dev/null && echo 1 || echo 0)
-shells=$([ $has_zsh -eq 1 ] && echo "bash zsh" || echo "bash")
 for shell in $shells; do
-  echo -n "Generate ~/.fzf.$shell ... "
+  [[ "$shell" = fish ]] && continue
-  src=~/.fzf.${shell}
+  src=${prefix_expand}.${shell}
+  echo -n "Generate $src ... "
 
   fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
   if [ $auto_completion -eq 0 ]; then
@@ -294,17 +268,11 @@ for shell in $shells; do
     fzf_key_bindings="# $fzf_key_bindings"
   fi
 
-  cat > $src << EOF
+  cat > "$src" << EOF
 # Setup fzf
 # ---------
-if [[ ! "\$PATH" == *$fzf_base/bin* ]]; then
+if [[ ! "\$PATH" == *$fzf_base_esc/bin* ]]; then
-  export PATH="\$PATH:$fzf_base/bin"
+  export PATH="\${PATH:+\${PATH}:}$fzf_base/bin"
-fi
-
-# Man path
-# --------
-if [[ ! "\$MANPATH" == *$fzf_base/man* && -d "$fzf_base/man" ]]; then
-  export MANPATH="\$MANPATH:$fzf_base/man"
 fi
 
 # Auto-completion
@@ -314,28 +282,26 @@ $fzf_completion
 # Key bindings
 # ------------
 $fzf_key_bindings
-
 EOF
   echo "OK"
 done
 
 # fish
-has_fish=$(command -v fish > /dev/null && echo 1 || echo 0)
+if [[ "$shells" =~ fish ]]; then
-if [ $has_fish -eq 1 ]; then
   echo -n "Update fish_user_paths ... "
   fish << EOF
-  echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
+  echo \$fish_user_paths | \grep "$fzf_base"/bin > /dev/null
-  or set --universal fish_user_paths \$fish_user_paths $fzf_base/bin
+  or set --universal fish_user_paths \$fish_user_paths "$fzf_base"/bin
 EOF
   [ $? -eq 0 ] && echo "OK" || echo "Failed"
 
-  mkdir -p ~/.config/fish/functions
+  mkdir -p "${fish_dir}/functions"
-  if [ -e ~/.config/fish/functions/fzf.fish ]; then
+  if [ -e "${fish_dir}/functions/fzf.fish" ]; then
-    echo -n "Remove unnecessary ~/.config/fish/functions/fzf.fish ... "
+    echo -n "Remove unnecessary ${fish_dir}/functions/fzf.fish ... "
-    rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
+    rm -f "${fish_dir}/functions/fzf.fish" && echo "OK" || echo "Failed"
   fi
 
-  fish_binding=~/.config/fish/functions/fzf_key_bindings.fish
+  fish_binding="${fish_dir}/functions/fzf_key_bindings.fish"
   if [ $key_bindings -ne 0 ]; then
     echo -n "Symlink $fish_binding ... "
     ln -sf "$fzf_base/shell/key-bindings.fish" \
@@ -355,20 +321,22 @@ append_line() {
   line="$2"
   file="$3"
   pat="${4:-}"
+  lno=""
 
   echo "Update $file:"
   echo "  - $line"
-  [ -f "$file" ] || touch "$file"
+  if [ -f "$file" ]; then
-  if [ $# -lt 4 ]; then
+    if [ $# -lt 4 ]; then
-    lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
+      lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
-  else
+    else
-    lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
+      lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
+    fi
   fi
   if [ -n "$lno" ]; then
     echo "    - Already exists: line #$lno"
   else
     if [ $update -eq 1 ]; then
-      echo >> "$file"
+      [ -f "$file" ] && echo >> "$file"
       echo "$line" >> "$file"
       echo "    + Added"
     else
@@ -379,6 +347,17 @@ append_line() {
   set +e
 }
 
+create_file() {
+  local file="$1"
+  shift
+  echo "Create $file:"
+  for line in "$@"; do
+    echo "    $line"
+    echo "$line" >> "$file"
+  done
+  echo
+}
+
 if [ $update_config -eq 2 ]; then
   echo
   ask "Do you want to update your shell configuration files?"
@@ -386,23 +365,30 @@ if [ $update_config -eq 2 ]; then
 fi
 echo
 for shell in $shells; do
+  [[ "$shell" = fish ]] && continue
   [ $shell = zsh ] && dest=${ZDOTDIR:-~}/.zshrc || dest=~/.bashrc
-  append_line $update_config "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" "$dest" "~/.fzf.${shell}"
+  append_line $update_config "[ -f ${prefix}.${shell} ] && source ${prefix}.${shell}" "$dest" "${prefix}.${shell}"
 done
 
-if [ $key_bindings -eq 1 ] && [ $has_fish -eq 1 ]; then
+if [ $key_bindings -eq 1 ] && [[ "$shells" =~ fish ]]; then
-  bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
+  bind_file="${fish_dir}/functions/fish_user_key_bindings.fish"
-  append_line $update_config "fzf_key_bindings" "$bind_file"
+  if [ ! -e "$bind_file" ]; then
+    create_file "$bind_file" \
+      'function fish_user_key_bindings' \
+      '  fzf_key_bindings' \
+      'end'
+  else
+    append_line $update_config "fzf_key_bindings" "$bind_file"
+  fi
 fi
 
 if [ $update_config -eq 1 ]; then
   echo 'Finished. Restart your shell or reload config file.'
-  echo '   source ~/.bashrc  # bash'
+  [[ "$shells" =~ bash ]] && echo '   source ~/.bashrc  # bash'
-  [ $has_zsh  -eq 1 ] && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
+  [[ "$shells" =~ zsh ]]  && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
-  [ $has_fish -eq 1 ] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
+  [[ "$shells" =~ fish ]] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
   echo
   echo 'Use uninstall script to remove fzf.'
   echo
 fi
 echo 'For more information, see: https://github.com/junegunn/fzf'
-

main.go

@@ -2,6 +2,8 @@ package main
 
 import "github.com/junegunn/fzf/src"
 
+var revision string
+
 func main() {
-	fzf.Run(fzf.ParseOptions())
+	fzf.Run(fzf.ParseOptions(), revision)
 }

man/man1/fzf-tmux.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2019 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf-tmux 1 "Nov 2016" "fzf 0.15.8" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Dec 2019" "fzf 0.20.0" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane

man/man1/fzf.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2019 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Nov 2016" "fzf 0.15.8" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Dec 2019" "fzf 0.20.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -48,6 +48,9 @@ Case-insensitive match (default: smart-case match)
 .B "+i"
 Case-sensitive match
 .TP
+.B "--literal"
+Do not normalize latin script letters for matching.
+.TP
 .BI "--algo=" TYPE
 Fuzzy matching algorithm (default: v2)
 
@@ -67,6 +70,10 @@ Transform the presentation of each line using field index expressions
 .TP
 .BI "-d, --delimiter=" "STR"
 Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
+.TP
+.BI "--phony"
+Do not perform search. With this option, fzf becomes a simple selector
+interface rather than a "fuzzy finder".
 .SS Search result
 .TP
 .B "+s, --no-sort"
@@ -76,7 +83,8 @@ Do not sort the result
 Reverse the order of the input
 
 .RS
-e.g. \fBhistory | fzf --tac --no-sort\fR
+e.g.
+     \fBhistory | fzf --tac --no-sort\fR
 .RE
 .TP
 .BI "--tiebreak=" "CRI[,..]"
@@ -106,14 +114,18 @@ Comma-separated list of sort criteria to apply when the scores are tied.
 .SS Interface
 .TP
 .B "-m, --multi"
-Enable multi-select with tab/shift-tab
+Enable multi-select with tab/shift-tab. It optionally takes an integer argument
+which denotes the maximum number of items that can be selected.
+.TP
+.B "+m, --no-multi"
+Disable multi-select
 .TP
 .B "--no-mouse"
 Disable mouse
 .TP
 .BI "--bind=" "KEYBINDS"
-Comma-separated list of custom key bindings. See \fBKEY BINDINGS\fR for the
+Comma-separated list of custom key bindings. See \fBKEY/EVENT BINDINGS\fR for
-details.
+the details.
 .TP
 .B "--cycle"
 Enable cyclic scroll
@@ -126,12 +138,53 @@ Number of screen columns to keep to the right of the highlighted substring
 (default: 10). Setting it to a large value will cause the text to be positioned
 on the center of the screen.
 .TP
+.B "--filepath-word"
+Make word-wise movements and actions respect path separators. The following
+actions are affected:
+
+\fBbackward-kill-word\fR
+.br
+\fBbackward-word\fR
+.br
+\fBforward-word\fR
+.br
+\fBkill-word\fR
+.TP
 .BI "--jump-labels=" "CHARS"
 Label characters for \fBjump\fR and \fBjump-accept\fR
 .SS Layout
+.TP
+.BI "--height=" "HEIGHT[%]"
+Display fzf window below the cursor with the given height instead of using
+the full screen.
+.TP
+.BI "--min-height=" "HEIGHT"
+Minimum height when \fB--height\fR is given in percent (default: 10).
+Ignored when \fB--height\fR is not specified.
+.TP
+.BI "--layout=" "LAYOUT"
+Choose the layout (default: default)
+
+.br
+.BR default "       Display from the bottom of the screen"
+.br
+.BR reverse "       Display from the top of the screen"
+.br
+.BR reverse-list "  Display from the top of the screen, prompt at the bottom"
+.br
+
 .TP
 .B "--reverse"
-Reverse orientation
+A synonym for \fB--layout=reverse\fB
+
+.TP
+.B "--border"
+Draw border above and below the finder
+
+.TP
+.B "--no-unicode"
+Use ASCII characters instead of Unicode box drawing characters to draw border
+
 .TP
 .BI "--margin=" MARGIN
 Comma-separated expression for margins around the finder.
@@ -154,19 +207,33 @@ terminal size with \fB%\fR suffix.
 .br
 
 .br
-e.g. \fBfzf --margin 10%\fR
+e.g.
-     \fBfzf --margin 1,5%\fR
+     \fBfzf --margin 10%
+     fzf --margin 1,5%\fR
 .RE
 .TP
-.B "--inline-info"
+.BI "--info=" "STYLE"
-Display finder info inline with the query
+Determines the display style of finder info.
+
+.br
+.BR default "       Display on the next line to the prompt"
+.br
+.BR inline "        Display on the same line"
+.br
+.BR hidden "        Do not display finder info"
+.br
+
+.TP
+.B "--no-info"
+A synonym for \fB--info=hidden\fB
+
 .TP
 .BI "--prompt=" "STR"
 Input prompt (default: '> ')
 .TP
 .BI "--header=" "STR"
 The given string will be printed as the sticky header. The lines are displayed
-in the given order from top to bottom regardless of \fB--reverse\fR option, and
+in the given order from top to bottom regardless of \fB--layout\fR option, and
 are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
 \fB--ansi\fR is not set.
 .TP
@@ -185,12 +252,8 @@ Number of spaces for a tab character (default: 8)
 .BI "--color=" "[BASE_SCHEME][,COLOR:ANSI]"
 Color configuration. The name of the base color scheme is followed by custom
 color mappings. Ansi color code of -1 denotes terminal default
-foreground/background color.
+foreground/background color. You can also specify 24-bit color in \fB#rrggbb\fR
-
+format.
-.RS
-e.g. \fBfzf --color=bg+:24\fR
-     \fBfzf --color=light,fg:232,bg:255,bg+:116,info:27\fR
-.RE
 
 .RS
 .B BASE SCHEME:
@@ -199,21 +262,38 @@ e.g. \fBfzf --color=bg+:24\fR
     \fBdark    \fRColor scheme for dark 256-color terminal
     \fBlight   \fRColor scheme for light 256-color terminal
     \fB16      \fRColor scheme for 16-color terminal
-    \fBbw      \fRNo colors
+    \fBbw      \fRNo colors (equivalent to \fB--no-color\fR)
 
 .B COLOR:
-    \fBfg      \fRText
+    \fBfg         \fRText
-    \fBbg      \fRBackground
+    \fBbg         \fRBackground
-    \fBhl      \fRHighlighted substrings
+    \fBpreview-fg \fRPreview window text
-    \fBfg+     \fRText (current line)
+    \fBpreview-bg \fRPreview window background
-    \fBbg+     \fRBackground (current line)
+    \fBhl         \fRHighlighted substrings
-    \fBhl+     \fRHighlighted substrings (current line)
+    \fBfg+        \fRText (current line)
-    \fBinfo    \fRInfo
+    \fBbg+        \fRBackground (current line)
-    \fBprompt  \fRPrompt
+    \fBgutter     \fRGutter on the left (defaults to \fBbg+\fR)
-    \fBpointer \fRPointer to the current line
+    \fBhl+        \fRHighlighted substrings (current line)
-    \fBmarker  \fRMulti-select marker
+    \fBinfo       \fRInfo
-    \fBspinner \fRStreaming input indicator
+    \fBborder     \fRBorder of the preview window and horizontal separators (\fB--border\fR)
-    \fBheader  \fRHeader
+    \fBprompt     \fRPrompt
+    \fBpointer    \fRPointer to the current line
+    \fBmarker     \fRMulti-select marker
+    \fBspinner    \fRStreaming input indicator
+    \fBheader     \fRHeader
+
+.B EXAMPLES:
+
+     \fB# Seoul256 theme with 8-bit colors
+     # (https://github.com/junegunn/seoul256.vim) 
+     fzf --color='bg:237,bg+:236,info:143,border:240,spinner:108' \\
+         --color='hl:65,fg:252,header:65,fg+:252' \\
+         --color='pointer:161,marker:168,prompt:110,hl+:108'
+
+     # Seoul256 theme with 24-bit colors
+     fzf --color='bg:#4B4B4B,bg+:#3F3F3F,info:#BDBB72,border:#6B6B6B,spinner:#98BC99' \\
+         --color='hl:#719872,fg:#D9D9D9,header:#719872,fg+:#D9D9D9' \\
+         --color='pointer:#E12672,marker:#E17899,prompt:#98BEDE,hl+:#98BC99'\fR
 .RE
 .TP
 .B "--no-bold"
@@ -238,20 +318,59 @@ Execute the given command for the current line and display the result on the
 preview window. \fB{}\fR in the command is the placeholder that is replaced to
 the single-quoted string of the current line. To transform the replacement
 string, specify field index expressions between the braces (See \fBFIELD INDEX
-EXPRESSION\fR for the details). Also, \fB{q}\fR is replaced to the current
+EXPRESSION\fR for the details).
-query string.
 
 .RS
-e.g. \fBfzf --preview="head -$LINES {}"\fR
+e.g.
-     \fBls -l | fzf --preview="echo user={3} when={-4..-2}; cat {-1}" --header-lines=1\fR
+     \fBfzf --preview='head -$LINES {}'
+     ls -l | fzf --preview="echo user={3} when={-4..-2}; cat {-1}" --header-lines=1\fR
+
+fzf exports \fB$FZF_PREVIEW_LINES\fR and \fB$FZF_PREVIEW_COLUMNS\fR so that
+they represent the exact size of the preview window. (It also overrides
+\fB$LINES\fR and \fB$COLUMNS\fR with the same values but they can be reset
+by the default shell, so prefer to refer to the ones with \fBFZF_PREVIEW_\fR
+prefix.)
+
+A placeholder expression starting with \fB+\fR flag will be replaced to the
+space-separated list of the selected lines (or the current line if no selection
+was made) individually quoted.
+
+e.g.
+     \fBfzf --multi --preview='head -10 {+}'
+     git log --oneline | fzf --multi --preview 'git show {+1}'\fR
+
+When using a field index expression, leading and trailing whitespace is stripped
+from the replacement string. To preserve the whitespace, use the \fBs\fR flag.
+
+Also, \fB{q}\fR is replaced to the current query string, and \fB{n}\fR is
+replaced to zero-based ordinal index of the line. Use \fB{+n}\fR if you want
+all index numbers when multiple lines are selected.
+
+A placeholder expression with \fBf\fR flag is replaced to the path of
+a temporary file that holds the evaluated list. This is useful when you
+multi-select a large number of items and the length of the evaluated string may
+exceed \fBARG_MAX\fR.
+
+e.g.
+     \fB# Press CTRL-A to select 100K items and see the sum of all the numbers.
+     # This won't work properly without 'f' flag due to ARG_MAX limit.
+     seq 100000 | fzf --multi --bind ctrl-a:select-all \\
+                      --preview "awk '{sum+=\$1} END {print sum}' {+f}"\fR
 
 Note that you can escape a placeholder pattern by prepending a backslash.
+
+Preview window will be updated even when there is no match for the current
+query if any of the placeholder expressions evaluates to a non-empty string.
 .RE
 .TP
-.BI "--preview-window=" "[POSITION][:SIZE[%]][:hidden]"
+.BI "--preview-window=" "[POSITION][:SIZE[%]][:noborder][:wrap][:hidden]"
-Determine the layout of the preview window. If the argument ends with
+Determines the layout of the preview window. If the argument contains
 \fB:hidden\fR, the preview window will be hidden by default until
-\fBtoggle-preview\fR action is triggered.
+\fBtoggle-preview\fR action is triggered. Long lines are truncated by default.
+Line wrap can be enabled with \fB:wrap\fR flag.
+
+If size is given as 0, preview window will not be visible, but fzf will still
+execute the command in the background.
 
 .RS
 .B POSITION: (default: right)
@@ -262,8 +381,9 @@ Determine the layout of the preview window. If the argument ends with
 .RE
 
 .RS
-e.g. \fBfzf --preview="head {}" --preview-window=up:30%\fR
+e.g.
-     \fBfzf --preview="file {}" --preview-window=down:1\fR
+     \fBfzf --preview="head {}" --preview-window=up:30%
+     fzf --preview="file {}" --preview-window=down:1\fR
 .RE
 .SS Scripting
 .TP
@@ -288,17 +408,26 @@ Comma-separated list of keys that can be used to complete fzf in addition to
 the default enter key. When this option is set, fzf will print the name of the
 key pressed as the first line of its output (or as the second line if
 \fB--print-query\fR is also used). The line will be empty if fzf is completed
-with the default enter key.
+with the default enter key. If \fB--expect\fR option is specified multiple
+times, fzf will expect the union of the keys. \fB--no-expect\fR will clear the
+list.
 
 .RS
-e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
+e.g.
+     \fBfzf --expect=ctrl-v,ctrl-t,alt-s --expect=f1,f2,~,@\fR
 .RE
 .TP
 .B "--read0"
-Read input delimited by ASCII NUL character instead of newline character
+Read input delimited by ASCII NUL characters instead of newline characters
 .TP
 .B "--print0"
-Print output delimited by ASCII NUL character instead of newline character
+Print output delimited by ASCII NUL characters instead of newline characters
+.TP
+.B "--no-clear"
+Do not clear finder interface on exit. If fzf was started in full screen mode,
+it will not switch back to the original screen, so you'll have to manually run
+\fBtput rmcup\fR to return. This option can be used to avoid flickering of the
+screen when your application needs to start fzf multiple times in order.
 .TP
 .B "--sync"
 Synchronous search for multi-staged filtering. If specified, fzf will launch
@@ -307,11 +436,18 @@ ncurses finder only after the input stream is complete.
 .RS
 e.g. \fBfzf --multi | fzf --sync\fR
 .RE
+.TP
+.B "--version"
+Display version information and exit
+
+.TP
+Note that most options have the opposite versions with \fB--no-\fR prefix.
 
 .SH ENVIRONMENT VARIABLES
 .TP
 .B FZF_DEFAULT_COMMAND
-Default command to use when input is tty
+Default command to use when input is tty. On *nix systems, fzf runs the command
+with \fBsh -c\fR, so make sure that it's POSIX-compliant.
 .TP
 .B FZF_DEFAULT_OPTS
 Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
@@ -355,6 +491,9 @@ Unless specified otherwise, fzf will start in "extended-search mode". In this
 mode, you can specify multiple patterns delimited by spaces, such as: \fB'wild
 ^music .mp3$ sbtrkt !rmx\fR
 
+You can prepend a backslash to a space (\fB\\ \fR) to match a literal space
+character.
+
 .SS Exact-match (quoted)
 A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
 an "exact-match" (or "non-fuzzy") term. fzf will search for the exact
@@ -381,59 +520,132 @@ query matches entries that start with \fBcore\fR and end with either \fBgo\fR,
 
 e.g. \fB^core go$ | rb$ | py$\fR
 
-.SH KEY BINDINGS
+.SH KEY/EVENT BINDINGS
-You can customize key bindings of fzf with \fB--bind\fR option which takes
+\fB--bind\fR option allows you to bind \fBa key\fR or \fBan event\fR to one or
-a comma-separated list of key binding expressions. Each key binding expression
+more \fBactions\fR. You can use it to customize key bindings or implement
-follows the following format: \fBKEY:ACTION\fR
+dynamic behaviors.
 
-e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
+\fB--bind\fR takes a comma-separated list of binding expressions. Each binding
+expression is \fBKEY:ACTION\fR or \fBEVENT:ACTION\fR.
 
-.B AVAILABLE KEYS:    (SYNONYMS)
+e.g.
-    \fIctrl-[a-z]\fR
+     \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
-    \fIalt-[a-z]\fR
+
-    \fIalt-[0-9]\fR
+.SS AVAILABLE KEYS:    (SYNONYMS)
-    \fIf[1-12]\fR
+\fIctrl-[a-z]\fR
-    \fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
+.br
-    \fIspace\fR
+\fIctrl-space\fR
-    \fIbspace\fR      (\fIbs\fR)
+.br
-    \fIalt-enter\fR
+\fIctrl-\\\fR
-    \fIalt-space\fR
+.br
-    \fIalt-bspace\fR  (\fIalt-bs\fR)
+\fIctrl-]\fR
-    \fIalt-/\fR
+.br
-    \fItab\fR
+\fIctrl-^\fR      (\fIctrl-6\fR)
-    \fIbtab\fR        (\fIshift-tab\fR)
+.br
-    \fIesc\fR
+\fIctrl-/\fR      (\fIctrl-_\fR)
-    \fIdel\fR
+.br
-    \fIup\fR
+\fIctrl-alt-[a-z]\fR
-    \fIdown\fR
+.br
-    \fIleft\fR
+\fIalt-[a-z]\fR
-    \fIright\fR
+.br
-    \fIhome\fR
+\fIalt-[0-9]\fR
-    \fIend\fR
+.br
-    \fIpgup\fR        (\fIpage-up\fR)
+\fIf[1-12]\fR
-    \fIpgdn\fR        (\fIpage-down\fR)
+.br
-    \fIshift-left\fR
+\fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
-    \fIshift-right\fR
+.br
-    \fIdouble-click\fR
+\fIspace\fR
-    or any single character
+.br
+\fIbspace\fR      (\fIbs\fR)
+.br
+\fIalt-up\fR
+.br
+\fIalt-down\fR
+.br
+\fIalt-left\fR
+.br
+\fIalt-right\fR
+.br
+\fIalt-enter\fR
+.br
+\fIalt-space\fR
+.br
+\fIalt-bspace\fR  (\fIalt-bs\fR)
+.br
+\fIalt-/\fR
+.br
+\fItab\fR
+.br
+\fIbtab\fR        (\fIshift-tab\fR)
+.br
+\fIesc\fR
+.br
+\fIdel\fR
+.br
+\fIup\fR
+.br
+\fIdown\fR
+.br
+\fIleft\fR
+.br
+\fIright\fR
+.br
+\fIhome\fR
+.br
+\fIend\fR
+.br
+\fIpgup\fR        (\fIpage-up\fR)
+.br
+\fIpgdn\fR        (\fIpage-down\fR)
+.br
+\fIshift-up\fR
+.br
+\fIshift-down\fR
+.br
+\fIshift-left\fR
+.br
+\fIshift-right\fR
+.br
+\fIleft-click\fR
+.br
+\fIright-click\fR
+.br
+\fIdouble-click\fR
+.br
+or any single character
+
+.SS AVAILABLE EVENTS:
+\fIchange\fR (triggered whenever the query string is changed)
+.br
+
+    e.g.
+         \fB# Moves cursor to the top (or bottom depending on --layout) whenever the query is changed
+         fzf --bind change:top\fR
+
+.SS AVAILABLE ACTIONS:
+A key or an event can be bound to one or more of the following actions.
 
   \fBACTION:               DEFAULT BINDINGS (NOTES):
     \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
     \fBaccept\fR                \fIenter   double-click\fR
+    \fBaccept-non-empty\fR      (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
     \fBbackward-char\fR         \fIctrl-b  left\fR
     \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
     \fBbackward-kill-word\fR    \fIalt-bs\fR
     \fBbackward-word\fR         \fIalt-b   shift-left\fR
     \fBbeginning-of-line\fR     \fIctrl-a  home\fR
-    \fBcancel\fR
+    \fBcancel\fR                (clear query string if not empty, abort fzf otherwise)
     \fBclear-screen\fR          \fIctrl-l\fR
+    \fBclear-selection\fR       (clear multi-selection)
+    \fBclear-query\fR           (clear query string)
     \fBdelete-char\fR           \fIdel\fR
     \fBdelete-char/eof\fR       \fIctrl-d\fR
-    \fBdeselect-all\fR
+    \fBdeselect-all\fR          (deselect all matches)
     \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
     \fBend-of-line\fR           \fIctrl-e  end\fR
     \fBexecute(...)\fR          (see below for the details)
-    \fBexecute-multi(...)\fR    (see below for the details)
+    \fBexecute-silent(...)\fR   (see below for the details)
+    \fRexecute-multi(...)\fR    (deprecated in favor of \fB{+}\fR expression)
     \fBforward-char\fR          \fIctrl-f  right\fR
     \fBforward-word\fR          \fIalt-f   shift-right\fR
     \fBignore\fR
@@ -444,26 +656,41 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
     \fBpage-down\fR             \fIpgdn\fR
     \fBpage-up\fR               \fIpgup\fR
-    \fBpreview-down\fR
+    \fBhalf-page-down\fR
-    \fBpreview-up\fR
+    \fBhalf-page-up\fR
+    \fBpreview-down\fR          \fIshift-down\fR
+    \fBpreview-up\fR            \fIshift-up\fR
     \fBpreview-page-down\fR
     \fBpreview-page-up\fR
     \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
     \fBprint-query\fR           (print query and exit)
-    \fBselect-all\fR
+    \fBreload(...)\fR           (see below for the details)
-    \fBtoggle\fR
+    \fBreplace-query\fR         (replace query string with the current selection)
-    \fBtoggle-all\fR
+    \fBselect-all\fR            (select all matches)
-    \fBtoggle-down\fR           \fIctrl-i  (tab)\fR
+    \fBtoggle\fR                (\fIright-click\fR)
-    \fBtoggle-in\fR             (\fB--reverse\fR ? \fBtoggle-up\fR : \fBtoggle-down\fR)
+    \fBtoggle-all\fR            (toggle all matches)
-    \fBtoggle-out\fR            (\fB--reverse\fR ? \fBtoggle-down\fR : \fBtoggle-up\fR)
+    \fBtoggle+down\fR           \fIctrl-i  (tab)\fR
+    \fBtoggle-in\fR             (\fB--layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
+    \fBtoggle-out\fR            (\fB--layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
     \fBtoggle-preview\fR
-    \fBtoggle-sort\fR           (equivalent to \fB--toggle-sort\fR)
+    \fBtoggle-preview-wrap\fR
-    \fBtoggle-up\fR             \fIbtab    (shift-tab)\fR
+    \fBtoggle-sort\fR
+    \fBtoggle+up\fR             \fIbtab    (shift-tab)\fR
+    \fBtop\fR                   (move to the top result)
     \fBunix-line-discard\fR     \fIctrl-u\fR
     \fBunix-word-rubout\fR      \fIctrl-w\fR
     \fBup\fR                    \fIctrl-k  ctrl-p  up\fR
     \fByank\fR                  \fIctrl-y\fR
 
+.SS ACTION COMPOSITION
+
+Multiple actions can be chained using \fB+\fR separator.
+
+e.g.
+     \fBfzf --bind 'ctrl-a:select-all+accept'\fR
+
+.SS COMMAND EXECUTION
+
 With \fBexecute(...)\fR action, you can execute arbitrary commands without
 leaving fzf. For example, you can turn fzf into a simple file browser by
 binding \fBenter\fR key to \fBless\fR command like follows.
@@ -491,15 +718,37 @@ parse errors.
     \fBexecute|...|\fR
     \fBexecute:...\fR
 .RS
-This is the special form that frees you from parse errors as it does not expect
+The last one is the special form that frees you from parse errors as it does
-the closing character. The catch is that it should be the last one in the
+not expect the closing character. The catch is that it should be the last one
-comma-separated list of key-action pairs.
+in the comma-separated list of key-action pairs.
 .RE
 
-\fBexecute-multi(...)\fR is an alternative action that executes the command
+fzf switches to the alternate screen when executing a command. However, if the
-with the selected entries when multi-select is enabled (\fB--multi\fR). With
+command is expected to complete quickly, and you are not interested in its
-this action, \fB{}\fR is replaced with the quoted strings of the selected
+output, you might want to use \fBexecute-silent\fR instead, which silently
-entries separated by spaces.
+executes the command without the switching. Note that fzf will not be
+responsive until the command is complete. For asynchronous execution, start
+your command as a background process (i.e. appending \fB&\fR).
+
+.SS RELOAD INPUT
+
+\fBreload(...)\fR action is used to dynamically update the input list
+without restarting fzf. It takes the same command template with placeholder
+expressions as \fBexecute(...)\fR.
+
+See \fIhttps://github.com/junegunn/fzf/issues/1750\fR for more info.
+
+e.g.
+     \fB# Update the list of processes by pressing CTRL-R
+     ps -ef | fzf --bind 'ctrl-r:reload(ps -ef)' --header 'Press CTRL-R to reload' \\
+                  --header-lines=1 --layout=reverse
+
+     # Integration with ripgrep
+     RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+     INITIAL_QUERY="foobar"
+     FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \\
+       fzf --bind "change:reload:$RG_PREFIX {q} || true" \\
+           --ansi --phony --query "$INITIAL_QUERY"\fR
 
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)

plugin/fzf.vim

@@ -1,4 +1,4 @@
-" Copyright (c) 2016 Junegunn Choi
+" Copyright (c) 2017 Junegunn Choi
 "
 " MIT License
 "
@@ -26,12 +26,96 @@ if exists('g:loaded_fzf')
 endif
 let g:loaded_fzf = 1
 
+let s:is_win = has('win32') || has('win64')
+if s:is_win && &shellslash
+  set noshellslash
+  let s:base_dir = expand('<sfile>:h:h')
+  set shellslash
+else
+  let s:base_dir = expand('<sfile>:h:h')
+endif
+if s:is_win
+  let s:term_marker = '&::FZF'
+
+  function! s:fzf_call(fn, ...)
+    let shellslash = &shellslash
+    try
+      set noshellslash
+      return call(a:fn, a:000)
+    finally
+      let &shellslash = shellslash
+    endtry
+  endfunction
+
+  " Use utf-8 for fzf.vim commands
+  " Return array of shell commands for cmd.exe
+  let s:codepage = libcallnr('kernel32.dll', 'GetACP', 0)
+  function! s:enc_to_cp(str)
+    return iconv(a:str, &encoding, 'cp'.s:codepage)
+  endfunction
+  function! s:wrap_cmds(cmds)
+    return map([
+      \ '@echo off',
+      \ 'setlocal enabledelayedexpansion']
+    \ + (has('gui_running') ? ['set TERM= > nul'] : [])
+    \ + (type(a:cmds) == type([]) ? a:cmds : [a:cmds])
+    \ + ['endlocal'],
+    \ '<SID>enc_to_cp(v:val."\r")')
+  endfunction
+else
+  let s:term_marker = ";#FZF"
+
+  function! s:fzf_call(fn, ...)
+    return call(a:fn, a:000)
+  endfunction
+
+  function! s:wrap_cmds(cmds)
+    return a:cmds
+  endfunction
+
+  function! s:enc_to_cp(str)
+    return a:str
+  endfunction
+endif
+
+function! s:shellesc_cmd(arg)
+  let escaped = substitute(a:arg, '[&|<>()@^]', '^&', 'g')
+  let escaped = substitute(escaped, '%', '%%', 'g')
+  let escaped = substitute(escaped, '"', '\\^&', 'g')
+  let escaped = substitute(escaped, '\(\\\+\)\(\\^\)', '\1\1\2', 'g')
+  return '^"'.substitute(escaped, '\(\\\+\)$', '\1\1', '').'^"'
+endfunction
+
+function! fzf#shellescape(arg, ...)
+  let shell = get(a:000, 0, s:is_win ? 'cmd.exe' : 'sh')
+  if shell =~# 'cmd.exe$'
+    return s:shellesc_cmd(a:arg)
+  endif
+  return s:fzf_call('shellescape', a:arg)
+endfunction
+
+function! s:fzf_getcwd()
+  return s:fzf_call('getcwd')
+endfunction
+
+function! s:fzf_fnamemodify(fname, mods)
+  return s:fzf_call('fnamemodify', a:fname, a:mods)
+endfunction
+
+function! s:fzf_expand(fmt)
+  return s:fzf_call('expand', a:fmt, 1)
+endfunction
+
+function! s:fzf_tempname()
+  return s:fzf_call('tempname')
+endfunction
+
 let s:default_layout = { 'down': '~40%' }
 let s:layout_keys = ['window', 'up', 'down', 'left', 'right']
-let s:fzf_go = expand('<sfile>:h:h').'/bin/fzf'
+let s:fzf_go = s:base_dir.'/bin/fzf'
-let s:install = expand('<sfile>:h:h').'/install'
+let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
+let s:install = s:base_dir.'/install'
 let s:installed = 0
-let s:fzf_tmux = expand('<sfile>:h:h').'/bin/fzf-tmux'
 
 let s:cpo_save = &cpo
 set cpo&vim
@@ -42,6 +126,11 @@ function! s:fzf_exec()
       let s:exec = s:fzf_go
     elseif executable('fzf')
       let s:exec = 'fzf'
+    elseif s:is_win && !has('win32unix')
+      call s:warn('fzf executable not found.')
+      call s:warn('Download fzf binary for Windows from https://github.com/junegunn/fzf-bin/releases/')
+      call s:warn('and place it as '.s:base_dir.'\bin\fzf.exe')
+      throw 'fzf executable not found'
     elseif !s:installed && executable(s:install) &&
           \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
@@ -55,7 +144,7 @@ function! s:fzf_exec()
       throw 'fzf executable not found'
     endif
   endif
-  return s:shellesc(s:exec)
+  return fzf#shellescape(s:exec)
 endfunction
 
 function! s:tmux_enabled()
@@ -75,12 +164,9 @@ function! s:tmux_enabled()
   return s:tmux
 endfunction
 
-function! s:shellesc(arg)
-  return '"'.substitute(a:arg, '"', '\\"', 'g').'"'
-endfunction
-
 function! s:escape(path)
-  return escape(a:path, ' $%#''"\')
+  let path = fnameescape(a:path)
+  return s:is_win ? escape(path, '$') : path
 endfunction
 
 " Upgrade legacy options
@@ -120,7 +206,7 @@ function! s:has_any(dict, keys)
 endfunction
 
 function! s:open(cmd, target)
-  if stridx('edit', a:cmd) == 0 && fnamemodify(a:target, ':p') ==# expand('%:p')
+  if stridx('edit', a:cmd) == 0 && s:fzf_fnamemodify(a:target, ':p') ==# s:fzf_expand('%:p')
     return
   endif
   execute a:cmd s:escape(a:target)
@@ -131,15 +217,18 @@ function! s:common_sink(action, lines) abort
     return
   endif
   let key = remove(a:lines, 0)
-  let cmd = get(a:action, key, 'e')
+  let Cmd = get(a:action, key, 'e')
+  if type(Cmd) == type(function('call'))
+    return Cmd(a:lines)
+  endif
   if len(a:lines) > 1
     augroup fzf_swap
       autocmd SwapExists * let v:swapchoice='o'
-            \| call s:warn('fzf: E325: swap file exists: '.expand('<afile>'))
+            \| call s:warn('fzf: E325: swap file exists: '.s:fzf_expand('<afile>'))
     augroup END
   endif
   try
-    let empty = empty(expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
+    let empty = empty(s:fzf_expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
     let autochdir = &autochdir
     set noautochdir
     for item in a:lines
@@ -147,12 +236,14 @@ function! s:common_sink(action, lines) abort
         execute 'e' s:escape(item)
         let empty = 0
       else
-        call s:open(cmd, item)
+        call s:open(Cmd, item)
       endif
-      if exists('#BufEnter') && isdirectory(item)
+      if !has('patch-8.0.0177') && !has('nvim-0.2') && exists('#BufEnter')
+            \ && isdirectory(item)
         doautocmd BufEnter
       endif
     endfor
+  catch /^Vim:Interrupt$/
   finally
     let &autochdir = autochdir
     silent! autocmd! fzf_swap
@@ -160,9 +251,12 @@ function! s:common_sink(action, lines) abort
 endfunction
 
 function! s:get_color(attr, ...)
+  let gui = !s:is_win && !has('win32unix') && has('termguicolors') && &termguicolors
+  let fam = gui ? 'gui' : 'cterm'
+  let pat = gui ? '^#[a-f0-9]\+' : '^[0-9]\+$'
   for group in a:000
-    let code = synIDattr(synIDtrans(hlID(group)), a:attr, 'cterm')
+    let code = synIDattr(synIDtrans(hlID(group)), a:attr, fam)
-    if code =~ '^[0-9]\+$'
+    if code =~? pat
       return code
     endif
   endfor
@@ -172,7 +266,22 @@ endfunction
 function! s:defaults()
   let rules = copy(get(g:, 'fzf_colors', {}))
   let colors = join(map(items(filter(map(rules, 'call("s:get_color", v:val)'), '!empty(v:val)')), 'join(v:val, ":")'), ',')
-  return empty(colors) ? '' : ('--color='.colors)
+  return empty(colors) ? '' : fzf#shellescape('--color='.colors)
+endfunction
+
+function! s:validate_layout(layout)
+  for key in keys(a:layout)
+    if index(s:layout_keys, key) < 0
+      throw printf('Invalid entry in g:fzf_layout: %s (allowed: %s)%s',
+            \ key, join(s:layout_keys, ', '), key == 'options' ? '. Use $FZF_DEFAULT_OPTS.' : '')
+    endif
+  endfor
+  return a:layout
+endfunction
+
+function! s:evaluate_opts(options)
+  return type(a:options) == type([]) ?
+        \ join(map(copy(a:options), 'fzf#shellescape(v:val)')) : a:options
 endfunction
 
 " [name string,] [opts dict,] [fullscreen boolean]
@@ -183,7 +292,7 @@ function! fzf#wrap(...)
   for arg in copy(a:000)
     let tidx = index(expects, type(arg), tidx)
     if tidx < 0
-      throw 'invalid arguments (expected: [name string] [opts dict] [fullscreen boolean])'
+      throw 'Invalid arguments (expected: [name string] [opts dict] [fullscreen boolean])'
     endif
     let args[tidx] = arg
     let tidx += 1
@@ -191,6 +300,10 @@ function! fzf#wrap(...)
   endfor
   let [name, opts, bang] = args
 
+  if len(name)
+    let opts.name = name
+  end
+
   " Layout: g:fzf_layout (and deprecated g:fzf_height)
   if bang
     for key in s:layout_keys
@@ -202,20 +315,21 @@ function! fzf#wrap(...)
     if !exists('g:fzf_layout') && exists('g:fzf_height')
       let opts.down = g:fzf_height
     else
-      let opts = extend(opts, get(g:, 'fzf_layout', s:default_layout))
+      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout)))
     endif
   endif
 
   " Colors: g:fzf_colors
-  let opts.options = s:defaults() .' '. get(opts, 'options', '')
+  let opts.options = s:defaults() .' '. s:evaluate_opts(get(opts, 'options', ''))
 
   " History: g:fzf_history_dir
   if len(name) && len(get(g:, 'fzf_history_dir', ''))
-    let dir = expand(g:fzf_history_dir)
+    let dir = s:fzf_expand(g:fzf_history_dir)
     if !isdirectory(dir)
       call mkdir(dir, 'p')
     endif
-    let opts.options = join(['--history', s:escape(dir.'/'.name), opts.options])
+    let history = fzf#shellescape(dir.'/'.name)
+    let opts.options = join(['--history', history, opts.options])
   endif
 
   " Action: g:fzf_action
@@ -231,56 +345,92 @@ function! fzf#wrap(...)
   return opts
 endfunction
 
+function! s:use_sh()
+  let [shell, shellslash, shellcmdflag, shellxquote] = [&shell, &shellslash, &shellcmdflag, &shellxquote]
+  if s:is_win
+    set shell=cmd.exe
+    set noshellslash
+    let &shellcmdflag = has('nvim') ? '/s /c' : '/c'
+    let &shellxquote = has('nvim') ? '"' : '('
+  else
+    set shell=sh
+  endif
+  return [shell, shellslash, shellcmdflag, shellxquote]
+endfunction
+
 function! fzf#run(...) abort
 try
-  let oshell = &shell
+  let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()
-  set shell=sh
+
-  if has('nvim') && len(filter(range(1, bufnr('$')), 'bufname(v:val) =~# ";#FZF"'))
-    call s:warn('FZF is already running!')
-    return []
-  endif
   let dict   = exists('a:1') ? s:upgrade(a:1) : {}
-  let temps  = { 'result': tempname() }
+  let temps  = { 'result': s:fzf_tempname() }
-  let optstr = get(dict, 'options', '')
+  let optstr = s:evaluate_opts(get(dict, 'options', ''))
   try
     let fzf_exec = s:fzf_exec()
   catch
     throw v:exception
   endtry
 
-  if !has_key(dict, 'source') && !empty($FZF_DEFAULT_COMMAND)
+  if !has_key(dict, 'dir')
-    let temps.source = tempname()
+    let dict.dir = s:fzf_getcwd()
-    call writefile(split($FZF_DEFAULT_COMMAND, "\n"), temps.source)
+  endif
-    let dict.source = (empty($SHELL) ? 'sh' : $SHELL) . ' ' . s:shellesc(temps.source)
+  if has('win32unix') && has_key(dict, 'dir')
+    let dict.dir = fnamemodify(dict.dir, ':p')
+  endif
+
+  if !has_key(dict, 'source') && !empty($FZF_DEFAULT_COMMAND) && !s:is_win
+    let temps.source = s:fzf_tempname()
+    call writefile(s:wrap_cmds(split($FZF_DEFAULT_COMMAND, "\n")), temps.source)
+    let dict.source = (empty($SHELL) ? &shell : $SHELL).' '.fzf#shellescape(temps.source)
   endif
 
   if has_key(dict, 'source')
     let source = dict.source
     let type = type(source)
     if type == 1
-      let prefix = source.'|'
+      let prefix = '( '.source.' )|'
     elseif type == 3
-      let temps.input = tempname()
+      let temps.input = s:fzf_tempname()
-      call writefile(source, temps.input)
+      call writefile(map(source, '<SID>enc_to_cp(v:val)'), temps.input)
-      let prefix = 'cat '.s:shellesc(temps.input).'|'
+      let prefix = (s:is_win ? 'type ' : 'cat ').fzf#shellescape(temps.input).'|'
     else
-      throw 'invalid source type'
+      throw 'Invalid source type'
     endif
   else
     let prefix = ''
   endif
-  let tmux = (!has('nvim') || get(g:, 'fzf_prefer_tmux', 0)) && s:tmux_enabled() && s:splittable(dict)
-  let command = prefix.(tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
 
-  if has('nvim') && !tmux
+  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0)
+  let use_height = has_key(dict, 'down') && !has('gui_running') &&
+        \ !(has('nvim') || s:is_win || has('win32unix') || s:present(dict, 'up', 'left', 'right', 'window')) &&
+        \ executable('tput') && filereadable('/dev/tty')
+  let has_vim8_term = has('terminal') && has('patch-8.0.995')
+  let has_nvim_term = has('nvim-0.2.1') || has('nvim') && !s:is_win
+  let use_term = has_nvim_term ||
+    \ has_vim8_term && !has('win32unix') && (has('gui_running') || s:is_win || !use_height && s:present(dict, 'down', 'up', 'left', 'right', 'window'))
+  let use_tmux = (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:tmux_enabled() && s:splittable(dict)
+  if prefer_tmux && use_tmux
+    let use_height = 0
+    let use_term = 0
+  endif
+  if use_height
+    let height = s:calc_size(&lines, dict.down, dict)
+    let optstr .= ' --height='.height
+  elseif use_term
+    let optstr .= ' --no-height'
+  endif
+  let command = prefix.(use_tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
+
+  if use_term
     return s:execute_term(dict, command, temps)
   endif
 
-  let lines = tmux ? s:execute_tmux(dict, command, temps) : s:execute(dict, command, temps)
+  let lines = use_tmux ? s:execute_tmux(dict, command, temps)
+                 \ : s:execute(dict, command, use_height, temps)
   call s:callback(dict, lines)
   return lines
 finally
-  let &shell = oshell
+  let [&shell, &shellslash, &shellcmdflag, &shellxquote] = [shell, shellslash, shellcmdflag, shellxquote]
 endtry
 endfunction
 
@@ -308,7 +458,7 @@ function! s:fzf_tmux(dict)
     endif
   endfor
   return printf('LINES=%d COLUMNS=%d %s %s %s --',
-    \ &lines, &columns, s:shellesc(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
+    \ &lines, &columns, fzf#shellescape(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
 endfunction
 
 function! s:splittable(dict)
@@ -318,16 +468,19 @@ endfunction
 
 function! s:pushd(dict)
   if s:present(a:dict, 'dir')
-    let cwd = getcwd()
+    let cwd = s:fzf_getcwd()
-    if get(a:dict, 'prev_dir', '') ==# cwd
+    let w:fzf_pushd = {
-      return 1
+    \   'command': haslocaldir() ? 'lcd' : (exists(':tcd') && haslocaldir(-1) ? 'tcd' : 'cd'),
-    endif
+    \   'origin': cwd,
-    let a:dict.prev_dir = cwd
+    \   'bufname': bufname('')
+    \ }
     execute 'lcd' s:escape(a:dict.dir)
-    let a:dict.dir = getcwd()
+    let cwd = s:fzf_getcwd()
-    return 1
+    let w:fzf_pushd.dir = cwd
+    let a:dict.pushd = w:fzf_pushd
+    return cwd
   endif
-  return 0
+  return ''
 endfunction
 
 augroup fzf_popd
@@ -336,28 +489,54 @@ augroup fzf_popd
 augroup END
 
 function! s:dopopd()
-  if !exists('w:fzf_prev_dir') || exists('*haslocaldir') && !haslocaldir()
+  if !exists('w:fzf_pushd')
     return
   endif
-  execute 'lcd' s:escape(w:fzf_prev_dir)
+
-  unlet w:fzf_prev_dir
+  " FIXME: We temporarily change the working directory to 'dir' entry
+  " of options dictionary (set to the current working directory if not given)
+  " before running fzf.
+  "
+  " e.g. call fzf#run({'dir': '/tmp', 'source': 'ls', 'sink': 'e'})
+  "
+  " After processing the sink function, we have to restore the current working
+  " directory. But doing so may not be desirable if the function changed the
+  " working directory on purpose.
+  "
+  " So how can we tell if we should do it or not? A simple heuristic we use
+  " here is that we change directory only if the current working directory
+  " matches 'dir' entry. However, it is possible that the sink function did
+  " change the directory to 'dir'. In that case, the user will have an
+  " unexpected result.
+  if s:fzf_getcwd() ==# w:fzf_pushd.dir && (!&autochdir || w:fzf_pushd.bufname ==# bufname(''))
+    execute w:fzf_pushd.command s:escape(w:fzf_pushd.origin)
+  endif
+  unlet w:fzf_pushd
 endfunction
 
 function! s:xterm_launcher()
-  let fmt = 'xterm -T "[fzf]" -bg "\%s" -fg "\%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
+  let fmt = 'xterm -T "[fzf]" -bg "%s" -fg "%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
   if has('gui_macvim')
     let fmt .= '&& osascript -e "tell application \"MacVim\" to activate"'
   endif
   return printf(fmt,
-    \ synIDattr(hlID("Normal"), "bg"), synIDattr(hlID("Normal"), "fg"),
+    \ escape(synIDattr(hlID("Normal"), "bg"), '#'), escape(synIDattr(hlID("Normal"), "fg"), '#'),
     \ &columns, &lines/2, getwinposx(), getwinposy())
 endfunction
 unlet! s:launcher
-let s:launcher = function('s:xterm_launcher')
+if s:is_win || has('win32unix')
+  let s:launcher = '%s'
+else
+  let s:launcher = function('s:xterm_launcher')
+endif
 
 function! s:exit_handler(code, command, ...)
   if a:code == 130
     return 0
+  elseif has('nvim') && a:code == 129
+    " When deleting the terminal buffer while fzf is still running,
+    " Nvim sends SIGHUP.
+    return 0
   elseif a:code > 1
     call s:error('Error running ' . a:command)
     if !empty(a:000)
@@ -368,18 +547,52 @@ function! s:exit_handler(code, command, ...)
   return 1
 endfunction
 
-function! s:execute(dict, command, temps) abort
+function! s:execute(dict, command, use_height, temps) abort
   call s:pushd(a:dict)
-  silent! !clear 2> /dev/null
+  if has('unix') && !a:use_height
-  let escaped = escape(substitute(a:command, '\n', '\\n', 'g'), '%#')
+    silent! !clear 2> /dev/null
+  endif
+  let escaped = (a:use_height || s:is_win) ? a:command : escape(substitute(a:command, '\n', '\\n', 'g'), '%#!')
   if has('gui_running')
     let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
     let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
-    let command = printf(fmt, "'".substitute(escaped, "'", "'\"'\"'", 'g')."'")
+    if has('unix')
+      let escaped = "'".substitute(escaped, "'", "'\"'\"'", 'g')."'"
+    endif
+    let command = printf(fmt, escaped)
   else
     let command = escaped
   endif
-  execute 'silent !'.command
+  if s:is_win
+    let batchfile = s:fzf_tempname().'.bat'
+    call writefile(s:wrap_cmds(command), batchfile)
+    let command = batchfile
+    let a:temps.batchfile = batchfile
+    if has('nvim')
+      let fzf = {}
+      let fzf.dict = a:dict
+      let fzf.temps = a:temps
+      function! fzf.on_exit(job_id, exit_status, event) dict
+        call s:pushd(self.dict)
+        let lines = s:collect(self.temps)
+        call s:callback(self.dict, lines)
+      endfunction
+      let cmd = 'start /wait cmd /c '.command
+      call jobstart(cmd, fzf)
+      return []
+    endif
+  elseif has('win32unix') && $TERM !=# 'cygwin'
+    let shellscript = s:fzf_tempname()
+    call writefile([command], shellscript)
+    let command = 'cmd.exe /C '.fzf#shellescape('set "TERM=" & start /WAIT sh -c '.shellscript)
+    let a:temps.shellscript = shellscript
+  endif
+  if a:use_height
+    let stdin = has_key(a:dict, 'source') ? '' : '< /dev/tty'
+    call system(printf('tput cup %d > /dev/tty; tput cnorm > /dev/tty; %s %s 2> /dev/tty', &lines, command, stdin))
+  else
+    execute 'silent !'.command
+  endif
   let exit_status = v:shell_error
   redraw!
   return s:exit_handler(exit_status, command) ? s:collect(a:temps) : []
@@ -387,9 +600,10 @@ endfunction
 
 function! s:execute_tmux(dict, command, temps) abort
   let command = a:command
-  if s:pushd(a:dict)
+  let cwd = s:pushd(a:dict)
+  if len(cwd)
     " -c '#{pane_current_path}' is only available on tmux 1.9 or above
-    let command = 'cd '.s:escape(a:dict.dir).' && '.command
+    let command = join(['cd', fzf#shellescape(cwd), '&&', command])
   endif
 
   call system(command)
@@ -411,8 +625,9 @@ function! s:calc_size(max, val, dict)
     let srcsz = len(a:dict.source)
   endif
 
-  let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
+  let opts = $FZF_DEFAULT_OPTS.' '.s:evaluate_opts(get(a:dict, 'options', ''))
   let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
+  let margin += stridx(opts, '--border') > stridx(opts, '--no-border') ? 2 : 0
   let margin += stridx(opts, '--header') > stridx(opts, '--no-header')
   return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
@@ -430,7 +645,7 @@ function! s:split(dict)
   let ppos = s:getpos()
   try
     if s:present(a:dict, 'window')
-      execute a:dict.window
+      execute 'keepalt' a:dict.window
     elseif !s:splittable(a:dict)
       execute (tabpagenr()-1).'tabnew'
     else
@@ -457,22 +672,25 @@ endfunction
 
 function! s:execute_term(dict, command, temps) abort
   let winrest = winrestcmd()
+  let pbuf = bufnr('')
   let [ppos, winopts] = s:split(a:dict)
-  let fzf = { 'buf': bufnr('%'), 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
+  call s:use_sh()
+  let b:fzf = a:dict
+  let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
             \ 'winopts': winopts, 'winrest': winrest, 'lines': &lines,
             \ 'columns': &columns, 'command': a:command }
   function! fzf.switch_back(inplace)
     if a:inplace && bufnr('') == self.buf
-      " FIXME: Can't re-enter normal mode from terminal mode
+      if bufexists(self.pbuf)
-      " execute "normal! \<c-^>"
+        execute 'keepalt b' self.pbuf
-      b #
+      endif
       " No other listed buffer
       if bufnr('') == self.buf
         enew
       endif
     endif
   endfunction
-  function! fzf.on_exit(id, code)
+  function! fzf.on_exit(id, code, ...)
     if s:getpos() == self.ppos " {'window': 'enew'}
       for [opt, val] in items(self.winopts)
         execute 'let' opt '=' val
@@ -507,16 +725,27 @@ function! s:execute_term(dict, command, temps) abort
   endfunction
 
   try
-    if s:present(a:dict, 'dir')
+    call s:pushd(a:dict)
-      execute 'lcd' s:escape(a:dict.dir)
+    if s:is_win
+      let fzf.temps.batchfile = s:fzf_tempname().'.bat'
+      call writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
+      let command = fzf.temps.batchfile
+    else
+      let command = a:command
+    endif
+    let command .= s:term_marker
+    if has('nvim')
+      call termopen(command, fzf)
+    else
+      let fzf.buf = term_start([&shell, &shellcmdflag, command], {'curwin': 1, 'exit_cb': function(fzf.on_exit)})
+      if !has('patch-8.0.1261') && !has('nvim') && !s:is_win
+        call term_wait(fzf.buf, 20)
+      endif
     endif
-    call termopen(a:command . ';#FZF', fzf)
   finally
-    if s:present(a:dict, 'dir')
+    call s:dopopd()
-      lcd -
-    endif
   endtry
-  setlocal nospell bufhidden=wipe nobuflisted
+  setlocal nospell bufhidden=wipe nobuflisted nonumber
   setf fzf
   startinsert
   return []
@@ -533,21 +762,9 @@ function! s:collect(temps) abort
 endfunction
 
 function! s:callback(dict, lines) abort
-  " Since anything can be done in the sink function, there is no telling that
+  let popd = has_key(a:dict, 'pushd')
-  " the change of the working directory was made by &autochdir setting.
-  "
-  " We use the following heuristic to determine whether to restore CWD:
-  " - Always restore the current directory when &autochdir is disabled.
-  "   FIXME This makes it impossible to change directory from inside the sink
-  "   function when &autochdir is not used.
-  " - In case of an error or an interrupt, a:lines will be empty.
-  "   And it will be an array of a single empty string when fzf was finished
-  "   without a match. In these cases, we presume that the change of the
-  "   directory is not expected and should be undone.
-  let popd = has_key(a:dict, 'prev_dir') &&
-        \ (!&autochdir || (empty(a:lines) || len(a:lines) == 1 && empty(a:lines[0])))
   if popd
-    let w:fzf_prev_dir = a:dict.prev_dir
+    let w:fzf_pushd = a:dict.pushd
   endif
 
   try
@@ -571,7 +788,7 @@ function! s:callback(dict, lines) abort
 
   " We may have opened a new window or tab
   if popd
-    let w:fzf_prev_dir = a:dict.prev_dir
+    let w:fzf_pushd = a:dict.pushd
     call s:dopopd()
   endif
 endfunction
@@ -581,16 +798,30 @@ let s:default_action = {
   \ 'ctrl-x': 'split',
   \ 'ctrl-v': 'vsplit' }
 
+function! s:shortpath()
+  let short = fnamemodify(getcwd(), ':~:.')
+  if !has('win32unix')
+    let short = pathshorten(short)
+  endif
+  let slash = (s:is_win && !&shellslash) ? '\' : '/'
+  return empty(short) ? '~'.slash : short . (short =~ escape(slash, '\').'$' ? '' : slash)
+endfunction
+
 function! s:cmd(bang, ...) abort
   let args = copy(a:000)
-  let opts = { 'options': '--multi ' }
+  let opts = { 'options': ['--multi'] }
   if len(args) && isdirectory(expand(args[-1]))
-    let opts.dir = substitute(substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g'), '/*$', '/', '')
+    let opts.dir = substitute(substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g'), '[/\\]*$', '/', '')
-    let opts.options .= ' --prompt '.shellescape(opts.dir)
+    if s:is_win && !&shellslash
+      let opts.dir = substitute(opts.dir, '/', '\\', 'g')
+    endif
+    let prompt = opts.dir
   else
-    let opts.options .= ' --prompt '.shellescape(pathshorten(getcwd()).'/')
+    let prompt = s:shortpath()
   endif
-  let opts.options .= ' '.join(args)
+  let prompt = strwidth(prompt) < &columns - 20 ? prompt : '> '
+  call extend(opts.options, ['--prompt', prompt])
+  call extend(opts.options, args)
   call fzf#run(fzf#wrap('FZF', opts, a:bang))
 endfunction
 

shell/completion.bash

@@ -1,21 +1,22 @@
-#!/bin/bash
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
 # /_/   /___/_/-completion.bash
 #
-# - $FZF_TMUX               (default: 1)
+# - $FZF_TMUX               (default: 0)
 # - $FZF_TMUX_HEIGHT        (default: '40%')
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+if [[ $- =~ i ]]; then
+
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
     echo "$1"
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
@@ -23,16 +24,24 @@ fi
 if ! declare -f _fzf_compgen_dir > /dev/null; then
   _fzf_compgen_dir() {
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o -type d \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
 
 ###########################################################
 
-_fzf_orig_completion_filter() {
+# To redraw line after fzf closes (printf '\e[5n')
-  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2";/' |
+bind '"\e[0n": redraw-current-line'
-  awk -F= '{gsub(/[^A-Za-z0-9_= ;]/, "_", $1); print $1"="$2}'
+
+__fzfcmd_complete() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
+    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+}
+
+__fzf_orig_completion_filter() {
+  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2"; [[ "\1" = *" -o nospace "* ]] \&\& [[ ! "$__fzf_nospace_commands" = *" \3 "* ]] \&\& __fzf_nospace_commands="$__fzf_nospace_commands \3 ";/' |
+  awk -F= '{OFS = FS} {gsub(/[^A-Za-z0-9_= ;]/, "_", $1);}1'
 }
 
 _fzf_opts_completion() {
@@ -43,35 +52,43 @@ _fzf_opts_completion() {
   opts="
     -x --extended
     -e --exact
+    --algo
     -i +i
     -n --nth
+    --with-nth
     -d --delimiter
     +s --no-sort
     --tac
     --tiebreak
-    --bind
     -m --multi
     --no-mouse
-    --color
+    --bind
-    --black
+    --cycle
-    --reverse
     --no-hscroll
+    --jump-labels
+    --height
+    --literal
+    --reverse
+    --margin
     --inline-info
     --prompt
+    --header
+    --header-lines
+    --ansi
+    --tabstop
+    --color
+    --no-bold
+    --history
+    --history-size
+    --preview
+    --preview-window
     -q --query
     -1 --select-1
     -0 --exit-0
     -f --filter
     --print-query
     --expect
-    --toggle-sort
+    --sync"
-    --sync
-    --cycle
-    --history
-    --history-size
-    --header
-    --header-lines
-    --margin"
 
   case "${prev}" in
   --tiebreak)
@@ -97,7 +114,7 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig_var orig ret orig_cmd
+  local cmd orig_var orig ret orig_cmd orig_complete
   cmd="$1"
   shift
   orig_cmd="$1"
@@ -106,17 +123,25 @@ _fzf_handle_dynamic_completion() {
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
     $orig "$@"
   elif [ -n "$_fzf_completion_loader" ]; then
+    orig_complete=$(complete -p "$orig_cmd" 2> /dev/null)
     _completion_loader "$@"
     ret=$?
-    eval "$(complete | command grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)"
+    # _completion_loader may not have updated completion for the command
-    source "${BASH_SOURCE[0]}"
+    if [ "$(complete -p "$orig_cmd" 2> /dev/null)" != "$orig_complete" ]; then
+      eval "$(complete | command grep " -F.* $orig_cmd$" | __fzf_orig_completion_filter)"
+      if [[ "$__fzf_nospace_commands" = *" $orig_cmd "* ]]; then
+        eval "${orig_complete/ -F / -o nospace -F }"
+      else
+        eval "$orig_complete"
+      fi
+    fi
     return $ret
   fi
 }
 
 __fzf_generic_path_completion() {
   local cur base dir leftover matches trigger cmd fzf
-  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  fzf="$(__fzfcmd_complete)"
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   COMPREPLY=()
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -125,24 +150,24 @@ __fzf_generic_path_completion() {
     base=${cur:0:${#cur}-${#trigger}}
     eval "base=$base"
 
-    dir="$base"
+    [[ $base = *"/"* ]] && dir="$base"
     while true; do
       if [ -z "$dir" ] || [ -d "$dir" ]; then
         leftover=${base/#"$dir"}
         leftover=${leftover/#\/}
         [ -z "$dir" ] && dir='.'
         [ "$dir" != "/" ] && dir="${dir/%\//}"
-        tput sc
+        matches=$(eval "$1 $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" $fzf $2 -q "$leftover" | while read -r item; do
-        matches=$(eval "$1 $(printf %q "$dir")" | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read -r item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
+        [[ -z "$3" ]] && [[ "$__fzf_nospace_commands" = *" ${COMP_WORDS[0]} "* ]] && matches="$matches "
         if [ -n "$matches" ]; then
           COMPREPLY=( "$matches" )
         else
           COMPREPLY=( "$cur" )
         fi
-        tput rc
+        printf '\e[5n'
         return 0
       fi
       dir=$(dirname "$dir")
@@ -160,7 +185,7 @@ _fzf_complete() {
   local cur selected trigger cmd fzf post
   post="$(caller 0 | awk '{print $2}')_post"
   type -t "$post" > /dev/null 2>&1 || post=cat
-  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  fzf="$(__fzfcmd_complete)"
 
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -168,15 +193,15 @@ _fzf_complete() {
   if [[ "$cur" == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
-    tput sc
+    selected=$(cat | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" $fzf $1 -q "$cur" | $post | tr '\n' ' ')
-    selected=$(cat | $fzf $FZF_COMPLETION_OPTS $1 -q "$cur" | $post | tr '\n' ' ')
     selected=${selected% } # Strip trailing space not to repeat "-o nospace"
-    tput rc
-
     if [ -n "$selected" ]; then
       COMPREPLY=("$selected")
-      return 0
+    else
+      COMPREPLY=("$cur")
     fi
+    printf '\e[5n'
+    return 0
   else
     shift
     _fzf_handle_dynamic_completion "$cmd" "$@"
@@ -200,10 +225,9 @@ _fzf_complete_kill() {
   [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
 
   local selected fzf
-  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  fzf="$(__fzfcmd_complete)"
-  tput sc
+  selected=$(command ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS --preview 'echo {}' --preview-window down:3:wrap $FZF_COMPLETION_OPTS" $fzf -m | awk '{print $2}' | tr '\n' ' ')
-  selected=$(ps -ef | sed 1d | $fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
+  printf '\e[5n'
-  tput rc
 
   if [ -n "$selected" ]; then
     COMPREPLY=( "$selected" )
@@ -220,8 +244,8 @@ _fzf_complete_telnet() {
 
 _fzf_complete_ssh() {
   _fzf_complete '+m' "$@" < <(
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+    cat <(cat ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
-        <(command grep -oE '^[^ ]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
@@ -261,18 +285,15 @@ a_cmds="
 x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-if [ "$_fzf_completion_loaded" != '0.11.3' ]; then
+eval "$(complete |
-  # Really wish I could use associative array but OSX comes with bash 3.2 :(
+  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
-  eval $(complete | command grep '\-F' | command grep -v _fzf_ |
+  __fzf_orig_completion_filter)"
-    command grep -E " ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
-  export _fzf_completion_loaded=0.11.3
-fi
 
 if type _completion_loader > /dev/null 2>&1; then
   _fzf_completion_loader=1
 fi
 
-_fzf_defc() {
+__fzf_defc() {
   local cmd func opts orig_var orig def
   cmd="$1"
   func="$2"
@@ -289,16 +310,14 @@ _fzf_defc() {
 
 # Anything
 for cmd in $a_cmds; do
-  _fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
+  __fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
 done
 
 # Directory
 for cmd in $d_cmds; do
-  _fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o plusdirs"
+  __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
-unset _fzf_defc
-
 # Kill completion
 complete -F _fzf_complete_kill -o nospace -o default -o bashdefault kill
 
@@ -312,3 +331,23 @@ complete -F _fzf_complete_export -o default -o bashdefault export
 complete -F _fzf_complete_unalias -o default -o bashdefault unalias
 
 unset cmd d_cmds a_cmds x_cmds
+
+_fzf_setup_completion() {
+  local kind fn cmd
+  kind=$1
+  fn=_fzf_${1}_completion
+  if [[ $# -lt 2 ]] || ! type -t "$fn" > /dev/null; then
+    echo "usage: ${FUNCNAME[0]} path|dir COMMANDS..."
+    return 1
+  fi
+  shift
+  for cmd in "$@"; do
+    eval "$(complete -p "$cmd" 2> /dev/null | grep -v "$fn" | __fzf_orig_completion_filter)"
+    case "$kind" in
+      dir) __fzf_defc "$cmd" "$fn" "-o nospace -o dirnames" ;;
+      *)   __fzf_defc "$cmd" "$fn" "-o default -o bashdefault" ;;
+    esac
+  done
+}
+
+fi

shell/completion.zsh

@@ -1,21 +1,22 @@
-#!/bin/zsh
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
 # /_/   /___/_/-completion.zsh
 #
-# - $FZF_TMUX               (default: 1)
+# - $FZF_TMUX               (default: 0)
 # - $FZF_TMUX_HEIGHT        (default: '40%')
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+if [[ $- =~ i ]]; then
+
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
     echo "$1"
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
@@ -23,42 +24,45 @@ fi
 if ! declare -f _fzf_compgen_dir > /dev/null; then
   _fzf_compgen_dir() {
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o -type d \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
 
 ###########################################################
 
+__fzfcmd_complete() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
+    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+}
+
 __fzf_generic_path_completion() {
   local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches
-  # (Q) flag removes a quoting level: "foo\ bar" => "foo bar"
+  base=$1
-  base=${(Q)1}
   lbuf=$2
   compgen=$3
   fzf_opts=$4
   suffix=$5
   tail=$6
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  fzf="$(__fzfcmd_complete)"
 
   setopt localoptions nonomatch
-  dir="$base"
+  eval "base=$base"
+  [[ $base = *"/"* ]] && dir="$base"
   while [ 1 ]; do
-    if [[ -z "$dir" || -d ${~dir} ]]; then
+    if [[ -z "$dir" || -d ${dir} ]]; then
       leftover=${base/#"$dir"}
       leftover=${leftover/#\/}
       [ -z "$dir" ] && dir='.'
       [ "$dir" != "/" ] && dir="${dir/%\//}"
-      dir=${~dir}
+      matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "$leftover" | while read item; do
-      matches=$(eval "$compgen $(printf %q "$dir")" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
         echo -n "${(q)item}$suffix "
       done)
       matches=${matches% }
       if [ -n "$matches" ]; then
         LBUFFER="$lbuf$matches$tail"
       fi
-      zle redisplay
+      zle reset-prompt
-      typeset -f zle-line-init >/dev/null && zle zle-line-init
       break
     fi
     dir=$(dirname "$dir")
@@ -90,15 +94,14 @@ _fzf_complete() {
   post="${funcstack[2]}_post"
   type $post > /dev/null 2>&1 || post=cat
 
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  fzf="$(__fzfcmd_complete)"
 
   _fzf_feed_fifo "$fifo"
-  matches=$(cat "$fifo" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
+  matches=$(cat "$fifo" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
   if [ -n "$matches" ]; then
     LBUFFER="$lbuf$matches"
   fi
-  zle redisplay
+  zle reset-prompt
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   command rm -f "$fifo"
 }
 
@@ -111,8 +114,9 @@ _fzf_complete_telnet() {
 
 _fzf_complete_ssh() {
   _fzf_complete '+m' "$@" < <(
-    command cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+    setopt localoptions nonomatch
-        <(command grep -oE '^[^ ]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+    command cat <(cat ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
+        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
@@ -138,7 +142,7 @@ _fzf_complete_unalias() {
 
 fzf-completion() {
   local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
-  setopt localoptions noshwordsplit noksh_arrays
+  setopt localoptions noshwordsplit noksh_arrays noposixbuiltins
 
   # http://zsh.sourceforge.net/FAQ/zshfaq03.html
   # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
@@ -154,16 +158,21 @@ fzf-completion() {
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   [ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
 
+  # When the trigger starts with ';', it becomes a separate token
+  if [[ ${LBUFFER} = *"${tokens[-2]}${tokens[-1]}" ]]; then
+    tokens[-2]="${tokens[-2]}${tokens[-1]}"
+    tokens=(${tokens[0,-2]})
+  fi
+
   tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
   # Kill completion (do not require trigger sequence)
   if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
-    [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+    fzf="$(__fzfcmd_complete)"
-    matches=$(ps -ef | sed 1d | ${=fzf} ${=FZF_COMPLETION_OPTS} -m | awk '{print $2}' | tr '\n' ' ')
+    matches=$(command ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS --preview 'echo {}' --preview-window down:3:wrap $FZF_COMPLETION_OPTS" ${=fzf} -m | awk '{print $2}' | tr '\n' ' ')
     if [ -n "$matches" ]; then
       LBUFFER="$LBUFFER$matches"
     fi
-    zle redisplay
+    zle reset-prompt
-    typeset -f zle-line-init >/dev/null && zle zle-line-init
   # Trigger sequence given
   elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
     d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
@@ -192,3 +201,5 @@ fzf-completion() {
 
 zle     -N   fzf-completion
 bindkey '^I' fzf-completion
+
+fi

shell/key-bindings.bash

@@ -1,11 +1,11 @@
 # Key bindings
 # ------------
 __fzf_select__() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
-    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+    -o -type l -print 2> /dev/null | cut -b3-"}"
-  eval "$cmd | fzf -m $FZF_CTRL_T_OPTS" | while read -r item; do
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" fzf -m "$@" | while read -r item; do
     printf '%q ' "$item"
   done
   echo
@@ -13,8 +13,13 @@ __fzf_select__() {
 
 if [[ $- =~ i ]]; then
 
+__fzf_use_tmux__() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
+}
+
 __fzfcmd() {
-  [ "${FZF_TMUX:-1}" != 0 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  __fzf_use_tmux__ &&
+    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
 __fzf_select_tmux__() {
@@ -26,7 +31,7 @@ __fzf_select_tmux__() {
     height="-l $height"
   fi
 
-  tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") FZF_CTRL_T_OPTS=$(printf %q "$FZF_CTRL_T_OPTS") bash -c 'source \"${BASH_SOURCE[0]}\"; RESULT=\"\$(__fzf_select__)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
+  tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") FZF_CTRL_T_OPTS=$(printf %q "$FZF_CTRL_T_OPTS") bash -c 'source \"${BASH_SOURCE[0]}\"; RESULT=\"\$(__fzf_select__ --no-height)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
 }
 
 fzf-file-widget() {
@@ -41,17 +46,17 @@ fzf-file-widget() {
 
 __fzf_cd__() {
   local cmd dir
-  cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+    -o -type d -print 2> /dev/null | cut -b3-"}"
-  dir=$(eval "$cmd | $(__fzfcmd) +m $FZF_ALT_C_OPTS") && printf 'cd %q' "$dir"
+  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m) && printf 'cd %q' "$dir"
 }
 
 __fzf_history__() (
   local line
   shopt -u nocaseglob nocasematch
   line=$(
-    HISTTIMEFORMAT= history |
+    HISTTIMEFORMAT= builtin history |
-    eval "$(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS" |
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac --sync -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m" $(__fzfcmd) |
     command grep '^ *[0-9]') &&
     if [[ $- =~ H ]]; then
       sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
@@ -60,29 +65,22 @@ __fzf_history__() (
     fi
 )
 
-__fzf_use_tmux__() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-1}" != 0 ] && [ ${LINES:-40} -gt 15 ]
-}
-
-[ $BASH_VERSINFO -gt 3 ] && __use_bind_x=1 || __use_bind_x=0
-__fzf_use_tmux__ && __use_tmux=1 || __use_tmux=0
-
 if [[ ! -o vi ]]; then
   # Required to refresh the prompt after fzf
   bind '"\er": redraw-current-line'
   bind '"\e^": history-expand-line'
 
   # CTRL-T - Paste the selected file path into the command line
-  if [ $__use_bind_x -eq 1 ]; then
+  if [ $BASH_VERSINFO -gt 3 ]; then
     bind -x '"\C-t": "fzf-file-widget"'
-  elif [ $__use_tmux -eq 1 ]; then
+  elif __fzf_use_tmux__; then
-    bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select_tmux__)\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
+    bind '"\C-t": " \C-u \C-a\C-k`__fzf_select_tmux__`\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
   else
-    bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select__)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
+    bind '"\C-t": " \C-u \C-a\C-k`__fzf_select__`\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
   fi
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": " \C-e\C-u`__fzf_history__`\e\C-e\e^\er"'
+  bind '"\C-r": " \C-e\C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er\e^"'
 
   # ALT-C - cd into the selected directory
   bind '"\ec": " \C-e\C-u`__fzf_cd__`\e\C-e\er\C-m"'
@@ -102,24 +100,22 @@ else
 
   # CTRL-T - Paste the selected file path into the command line
   # - FIXME: Selected items are attached to the end regardless of cursor position
-  if [ $__use_bind_x -eq 1 ]; then
+  if [ $BASH_VERSINFO -gt 3 ]; then
     bind -x '"\C-t": "fzf-file-widget"'
-  elif [ $__use_tmux -eq 1 ]; then
+  elif __fzf_use_tmux__; then
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select_tmux__)\C-x\C-e\C-x\C-a0P$xa"'
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select_tmux__`\C-x\C-e\C-x\C-a0P$xa"'
   else
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select__)\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select__`\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
   fi
   bind -m vi-command '"\C-t": "i\C-t"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\C-x\C-addi$(__fzf_history__)\C-x\C-e\C-x^\C-x\C-a$a\C-x\C-r"'
+  bind '"\C-r": "\C-x\C-addi`__fzf_history__`\C-x\C-e\C-x\C-r\C-x^\C-x\C-a$a"'
   bind -m vi-command '"\C-r": "i\C-r"'
 
   # ALT-C - cd into the selected directory
-  bind '"\ec": "\C-x\C-addi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
+  bind '"\ec": "\C-x\C-addi`__fzf_cd__`\C-x\C-e\C-x\C-r\C-m"'
-  bind -m vi-command '"\ec": "ddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
+  bind -m vi-command '"\ec": "ddi`__fzf_cd__`\C-x\C-e\C-x\C-r\C-m"'
 fi
 
-unset -v __use_tmux __use_bind_x
-
 fi

shell/key-bindings.fish

@@ -1,58 +1,91 @@
 # Key bindings
 # ------------
 function fzf_key_bindings
-  # Due to a bug of fish, we cannot use command substitution,
-  # so we use temporary file instead
-  if [ -z "$TMPDIR" ]
-    set -g TMPDIR /tmp
-  end
 
-  function __fzf_escape
+  # Store current token in $dir as root for the 'find' command
-    while read item
+  function fzf-file-widget -d "List files and folders"
-      echo -n (echo -n "$item" | sed -E 's/([ "$~'\''([{<>})])/\\\\\\1/g')' '
+    set -l commandline (__fzf_parse_commandline)
-    end
+    set -l dir $commandline[1]
-  end
+    set -l fzf_query $commandline[2]
 
-  function fzf-file-widget
+    # "-path \$dir'*/\\.*'" matches hidden files/folders inside $dir but not
+    # $dir itself, even if hidden.
     set -q FZF_CTRL_T_COMMAND; or set -l FZF_CTRL_T_COMMAND "
-    command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+    command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
-      -o -type f -print \
+    -o -type f -print \
-      -o -type d -print \
+    -o -type d -print \
-      -o -type l -print 2> /dev/null | sed 1d | cut -b3-"
+    -o -type l -print 2> /dev/null | sed 's@^\./@@'"
-    eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)" -m $FZF_CTRL_T_OPTS > $TMPDIR/fzf.result"
+
-    and for i in (seq 20); commandline -i (cat $TMPDIR/fzf.result | __fzf_escape) 2> /dev/null; and break; sleep 0.1; end
+    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    begin
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS"
+      eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)' -m --query "'$fzf_query'"' | while read -l r; set result $result $r; end
+    end
+    if [ -z "$result" ]
+      commandline -f repaint
+      return
+    else
+      # Remove last token from commandline.
+      commandline -t ""
+    end
+    for i in $result
+      commandline -it -- (string escape $i)
+      commandline -it -- ' '
+    end
     commandline -f repaint
-    rm -f $TMPDIR/fzf.result
   end
 
-  function fzf-history-widget
+  function fzf-history-widget -d "Show command history"
-    history | eval (__fzfcmd) +s +m --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS -q '(commandline)' > $TMPDIR/fzf.result
+    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
-    and commandline -- (cat $TMPDIR/fzf.result)
+    begin
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT $FZF_DEFAULT_OPTS --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m"
+
+      set -l FISH_MAJOR (echo $version | cut -f1 -d.)
+      set -l FISH_MINOR (echo $version | cut -f2 -d.)
+
+      # history's -z flag is needed for multi-line support.
+      # history's -z flag was added in fish 2.4.0, so don't use it for versions
+      # before 2.4.0.
+      if [ "$FISH_MAJOR" -gt 2 -o \( "$FISH_MAJOR" -eq 2 -a "$FISH_MINOR" -ge 4 \) ];
+        history -z | eval (__fzfcmd) --read0 --print0 -q '(commandline)' | read -lz result
+        and commandline -- $result
+      else
+        history | eval (__fzfcmd) -q '(commandline)' | read -l result
+        and commandline -- $result
+      end
+    end
     commandline -f repaint
-    rm -f $TMPDIR/fzf.result
   end
 
-  function fzf-cd-widget
+  function fzf-cd-widget -d "Change directory"
+    set -l commandline (__fzf_parse_commandline)
+    set -l dir $commandline[1]
+    set -l fzf_query $commandline[2]
+
     set -q FZF_ALT_C_COMMAND; or set -l FZF_ALT_C_COMMAND "
-    command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+    command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
-      -o -type d -print 2> /dev/null | sed 1d | cut -b3-"
+    -o -type d -print 2> /dev/null | sed 's@^\./@@'"
-    # Fish hangs if the command before pipe redirects (2> /dev/null)
+    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
-    eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)" +m $FZF_ALT_C_OPTS > $TMPDIR/fzf.result"
+    begin
-    [ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
-    and cd (cat $TMPDIR/fzf.result)
+      eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)' +m --query "'$fzf_query'"' | read -l result
+
+      if [ -n "$result" ]
+        cd $result
+
+        # Remove last token from commandline.
+        commandline -t ""
+      end
+    end
+
     commandline -f repaint
-    rm -f $TMPDIR/fzf.result
   end
 
   function __fzfcmd
-    set -q FZF_TMUX; or set FZF_TMUX 1
+    set -q FZF_TMUX; or set FZF_TMUX 0
-
+    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
     if [ $FZF_TMUX -eq 1 ]
-      if set -q FZF_TMUX_HEIGHT
+      echo "fzf-tmux -d$FZF_TMUX_HEIGHT"
-        echo "fzf-tmux -d$FZF_TMUX_HEIGHT"
-      else
-        echo "fzf-tmux -d40%"
-      end
     else
       echo "fzf"
     end
@@ -67,5 +100,47 @@ function fzf_key_bindings
     bind -M insert \cr fzf-history-widget
     bind -M insert \ec fzf-cd-widget
   end
-end
 
+  function __fzf_parse_commandline -d 'Parse the current command line token and return split of existing filepath and rest of token'
+    # eval is used to do shell expansion on paths
+    set -l commandline (eval "printf '%s' "(commandline -t))
+
+    if [ -z $commandline ]
+      # Default to current directory with no --query
+      set dir '.'
+      set fzf_query ''
+    else
+      set dir (__fzf_get_dir $commandline)
+
+      if [ "$dir" = "." -a (string sub -l 1 $commandline) != '.' ]
+        # if $dir is "." but commandline is not a relative path, this means no file path found
+        set fzf_query $commandline
+      else
+        # Also remove trailing slash after dir, to "split" input properly
+        set fzf_query (string replace -r "^$dir/?" '' "$commandline")
+      end
+    end
+
+    echo $dir
+    echo $fzf_query
+  end
+
+  function __fzf_get_dir -d 'Find the longest existing filepath from input string'
+    set dir $argv
+
+    # Strip all trailing slashes. Ignore if $dir is root dir (/)
+    if [ (string length $dir) -gt 1 ]
+      set dir (string replace -r '/*$' '' $dir)
+    end
+
+    # Iteratively check if dir exists and strip tail end of path
+    while [ ! -d "$dir" ]
+      # If path is absolute, this can keep going until ends up at /
+      # If path is relative, this can keep going until entire input is consumed, dirname returns "."
+      set dir (dirname "$dir")
+    end
+
+    echo $dir
+  end
+
+end

shell/key-bindings.zsh

@@ -4,12 +4,12 @@ if [[ $- == *i* ]]; then
 
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
-    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+    -o -type l -print 2> /dev/null | cut -b3-"}"
-  setopt localoptions pipefail 2> /dev/null
+  setopt localoptions pipefail no_aliases 2> /dev/null
-  eval "$cmd | $(__fzfcmd) -m $FZF_CTRL_T_OPTS" | while read item; do
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read item; do
     echo -n "${(q)item} "
   done
   local ret=$?
@@ -17,29 +17,48 @@ __fsel() {
   return $ret
 }
 
+__fzf_use_tmux__() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
+}
+
 __fzfcmd() {
-  [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  __fzf_use_tmux__ &&
+    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
 fzf-file-widget() {
   LBUFFER="${LBUFFER}$(__fsel)"
   local ret=$?
-  zle redisplay
+  zle reset-prompt
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   return $ret
 }
 zle     -N   fzf-file-widget
 bindkey '^T' fzf-file-widget
 
+# Ensure precmds are run after cd
+fzf-redraw-prompt() {
+  local precmd
+  for precmd in $precmd_functions; do
+    $precmd
+  done
+  zle reset-prompt
+}
+zle -N fzf-redraw-prompt
+
 # ALT-C - cd into the selected directory
 fzf-cd-widget() {
-  local cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+    -o -type d -print 2> /dev/null | cut -b3-"}"
-  setopt localoptions pipefail 2> /dev/null
+  setopt localoptions pipefail no_aliases 2> /dev/null
-  cd "${$(eval "$cmd | $(__fzfcmd) +m $FZF_ALT_C_OPTS"):-.}"
+  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m)"
+  if [[ -z "$dir" ]]; then
+    zle redisplay
+    return 0
+  fi
+  cd "$dir"
+  unset dir # ensure this doesn't end up appearing in prompt expansion
   local ret=$?
-  zle reset-prompt
+  zle fzf-redraw-prompt
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   return $ret
 }
 zle     -N    fzf-cd-widget
@@ -48,8 +67,9 @@ bindkey '\ec' fzf-cd-widget
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
   local selected num
-  setopt localoptions noglobsubst pipefail 2> /dev/null
+  setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
-  selected=( $(fc -l 1 | eval "$(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS -q ${(q)LBUFFER}") )
+  selected=( $(fc -rl 1 |
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
   local ret=$?
   if [ -n "$selected" ]; then
     num=$selected[1]
@@ -57,12 +77,10 @@ fzf-history-widget() {
       zle vi-fetch-history -n $num
     fi
   fi
-  zle redisplay
+  zle reset-prompt
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   return $ret
 }
 zle     -N   fzf-history-widget
 bindkey '^R' fzf-history-widget
 
 fi
-

src/Dockerfile.android

@@ -1,40 +0,0 @@
-FROM ubuntu:14.04
-MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
-
-# apt-get
-RUN apt-get update && apt-get -y upgrade && \
-    apt-get install -y --force-yes git curl build-essential
-
-# Install Go 1.4
-RUN cd / && curl \
-    https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
-    tar -xz && mv go go1.4 && \
-    sed -i 's@#define PTHREAD_KEYS_MAX 128@@' /go1.4/src/runtime/cgo/gcc_android_arm.c
-
-ENV GOROOT /go1.4
-ENV PATH /go1.4/bin:$PATH
-
-RUN cd / && \
-    curl -O http://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin && \
-    chmod 755 /android-ndk* && /android-ndk-r10e-linux-x86_64.bin && \
-    mv android-ndk-r10e /android-ndk
-
-RUN cd /android-ndk && bash ./build/tools/make-standalone-toolchain.sh --platform=android-21 --install-dir=/ndk --arch=arm
-
-ENV NDK_CC /ndk/bin/arm-linux-androideabi-gcc
-
-RUN cd $GOROOT/src && \
-    CC_FOR_TARGET=$NDK_CC GOOS=android GOARCH=arm GOARM=7 ./make.bash
-
-RUN cd / && curl \
-    http://ftp.gnu.org/gnu/ncurses/ncurses-5.9.tar.gz | \
-    tar -xz && cd /ncurses-5.9 && \
-    ./configure CC=$NDK_CC CFLAGS="-fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch" LDFLAGS="-march=armv7-a -Wl,--no-warn-mismatch" --host=arm-linux --enable-overwrite --enable-const --without-cxx-binding  --without-shared --without-debug --enable-widec --enable-ext-colors --enable-ext-mouse --enable-pc-files --with-pkg-config-libdir=$PKG_CONFIG_LIBDIR --without-manpages --without-ada --disable-shared --without-tests --prefix=/ndk/sysroot/usr --with-default-terminfo-dirs=/usr/share/terminfo --with-terminfo-dirs=/usr/share/terminfo ac_cv_header_locale_h=n ac_cv_func_getpwent=no ac_cv_func_getpwnam=no ac_cv_func_getpwuid=no && \
-    sed -i 's@#define HAVE_LOCALE_H 1@/* #undef HAVE_LOCALE_H */@' include/ncurses_cfg.h && \
-    make && \
-    sed -i '0,/echo.*/{s/echo.*/exit 0/}' misc/run_tic.sh && \
-    make install && \
-    mv /ndk/sysroot/usr/lib/libncursesw.a /ndk/sysroot/usr/lib/libncurses.a
-
-# Default CMD
-CMD cd /fzf/src && /bin/bash

src/Dockerfile.arch

@@ -1,24 +0,0 @@
-FROM base/archlinux:2014.07.03
-MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
-
-# apt-get
-RUN pacman-key --populate archlinux && pacman-key --refresh-keys
-RUN pacman-db-upgrade && pacman -Syu --noconfirm base-devel git
-
-# Install Go 1.4
-RUN cd / && curl \
-    https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
-    tar -xz && mv go go1.4
-
-ENV GOROOT /go1.4
-ENV PATH /go1.4/bin:$PATH
-
-# For i386 build
-RUN echo '[multilib]' >> /etc/pacman.conf && \
-    echo 'Include = /etc/pacman.d/mirrorlist' >> /etc/pacman.conf && \
-    pacman-db-upgrade && yes | pacman -Sy gcc-multilib lib32-ncurses && \
-    cd $GOROOT/src && GOARCH=386 ./make.bash
-
-# Default CMD
-CMD cd /fzf/src && /bin/bash
-

src/Dockerfile.centos

@@ -1,32 +0,0 @@
-FROM centos:centos6
-MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
-
-# yum
-RUN yum install -y git gcc make tar glibc-devel glibc-devel.i686 \
-    ncurses-devel ncurses-static ncurses-devel.i686 \
-    gpm-devel gpm-static libgcc.i686
-
-# Install Go 1.4
-RUN cd / && curl \
-    https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
-    tar -xz && mv go go1.4
-
-# Install Go 1.7
-RUN cd / && curl \
-    https://storage.googleapis.com/golang/go1.7.linux-amd64.tar.gz | \
-    tar -xz && mv go go1.7
-
-# Install RPMs for building static 32-bit binary
-RUN curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.8/os/i386/Packages/ncurses-static-5.7-4.20090207.el6.i686.rpm -o rpm && rpm -i rpm && \
-    curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.8/os/i386/Packages/gpm-static-1.20.6-12.el6.i686.rpm -o rpm && rpm -i rpm
-
-ENV GOROOT_BOOTSTRAP /go1.4
-ENV GOROOT /go1.7
-ENV PATH /go1.7/bin:$PATH
-
-# For i386 build
-RUN cd $GOROOT/src && GOARCH=386 ./make.bash
-
-# Default CMD
-CMD cd /fzf/src && /bin/bash
-

src/Dockerfile.ubuntu

@@ -1,22 +0,0 @@
-FROM ubuntu:14.04
-MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
-
-# apt-get
-RUN apt-get update && apt-get -y upgrade && \
-    apt-get install -y --force-yes git curl build-essential libncurses-dev libgpm-dev
-
-# Install Go 1.4
-RUN cd / && curl \
-    https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
-    tar -xz && mv go go1.4
-
-ENV GOROOT /go1.4
-ENV PATH /go1.4/bin:$PATH
-
-# For i386 build
-RUN apt-get install -y lib32ncurses5-dev && \
-    cd $GOROOT/src && GOARCH=386 ./make.bash
-
-# Default CMD
-CMD cd /fzf/src && /bin/bash
-

src/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2017 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/Makefile

@@ -1,123 +0,0 @@
-ifndef GOOS
-UNAME_S := $(shell uname -s)
-ifeq ($(UNAME_S),Darwin)
-	GOOS := darwin
-else ifeq ($(UNAME_S),Linux)
-	GOOS := linux
-endif
-endif
-
-SOURCES     := $(wildcard *.go */*.go)
-ROOTDIR     := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
-BINDIR      := $(shell dirname $(ROOTDIR))/bin
-GOPATH      := $(shell dirname $(ROOTDIR))/gopath
-SRCDIR      := $(GOPATH)/src/github.com/junegunn/fzf/src
-DOCKEROPTS  := -i -t -v $(ROOTDIR):/fzf/src
-BINARY32    := fzf-$(GOOS)_386
-BINARY64    := fzf-$(GOOS)_amd64
-BINARYARM7  := fzf-$(GOOS)_arm7
-VERSION     := $(shell awk -F= '/version =/ {print $$2}' constants.go | tr -d "\" ")
-RELEASE32   := fzf-$(VERSION)-$(GOOS)_386
-RELEASE64   := fzf-$(VERSION)-$(GOOS)_amd64
-RELEASEARM7 := fzf-$(VERSION)-$(GOOS)_arm7
-export GOPATH
-
-UNAME_M := $(shell uname -m)
-ifeq ($(UNAME_M),x86_64)
-	BINARY := $(BINARY64)
-else ifeq ($(UNAME_M),i686)
-	BINARY := $(BINARY32)
-else
-$(error "Build on $(UNAME_M) is not supported, yet.")
-endif
-
-all: fzf/$(BINARY)
-
-ifeq ($(GOOS),windows)
-release: fzf/$(BINARY32) fzf/$(BINARY64)
-	-cd fzf && cp $(BINARY32) $(RELEASE32).exe && zip $(RELEASE32).zip $(RELEASE32).exe
-	cd fzf && cp $(BINARY64) $(RELEASE64).exe && zip $(RELEASE64).zip $(RELEASE64).exe && \
-	rm -f $(RELEASE32).exe $(RELEASE64).exe
-else
-release: test fzf/$(BINARY32) fzf/$(BINARY64)
-	-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
-	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
-	rm -f $(RELEASE32) $(RELEASE64)
-endif
-
-$(SRCDIR):
-	mkdir -p $(shell dirname $(SRCDIR))
-	ln -s $(ROOTDIR) $(SRCDIR)
-
-deps: $(SRCDIR) $(SOURCES)
-	cd $(SRCDIR) && go get -tags "$(TAGS)"
-
-android-build: $(SRCDIR)
-	cd $(SRCDIR) && GOARCH=arm GOARM=7 CGO_ENABLED=1 go get
-	cd $(SRCDIR)/fzf && GOARCH=arm GOARM=7 CGO_ENABLED=1 go build -a -ldflags="-w -extldflags=-pie" -o $(BINARYARM7)
-	cd $(SRCDIR)/fzf && cp $(BINARYARM7) $(RELEASEARM7) && tar -czf $(RELEASEARM7).tgz $(RELEASEARM7) && \
-	rm -f $(RELEASEARM7)
-
-test: deps
-	SHELL=/bin/sh GOOS=$(GOOS) go test -v -tags "$(TAGS)" ./...
-
-install: $(BINDIR)/fzf
-
-uninstall:
-	rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY)
-
-clean:
-	cd fzf && rm -f fzf-*
-
-fzf/$(BINARY32): deps
-	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -ldflags -w -tags "$(TAGS)" -o $(BINARY32)
-
-fzf/$(BINARY64): deps
-	cd fzf && go build -a -ldflags -w -tags "$(TAGS)" -o $(BINARY64)
-
-$(BINDIR)/fzf: fzf/$(BINARY) | $(BINDIR)
-	cp -f fzf/$(BINARY) $(BINDIR)
-	cd $(BINDIR) && ln -sf $(BINARY) fzf
-
-$(BINDIR):
-	mkdir -p $@
-
-docker-arch:
-	docker build -t junegunn/arch-sandbox - < Dockerfile.arch
-
-docker-ubuntu:
-	docker build -t junegunn/ubuntu-sandbox - < Dockerfile.ubuntu
-
-docker-centos:
-	docker build -t junegunn/centos-sandbox - < Dockerfile.centos
-
-docker-android:
-	docker build -t junegunn/android-sandbox - < Dockerfile.android
-
-arch: docker-arch
-	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
-		sh -c 'cd /fzf/src; /bin/bash'
-
-ubuntu: docker-ubuntu
-	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
-		sh -c 'cd /fzf/src; /bin/bash'
-
-centos: docker-centos
-	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
-		sh -c 'cd /fzf/src; /bin/bash'
-
-linux: docker-centos
-	docker run $(DOCKEROPTS) junegunn/centos-sandbox \
-		/bin/bash -ci 'cd /fzf/src; make TAGS=static release'
-
-ubuntu-android: docker-android
-	docker run $(DOCKEROPTS) junegunn/android-sandbox \
-		sh -c 'cd /fzf/src; /bin/bash'
-
-android: docker-android
-	docker run $(DOCKEROPTS) junegunn/android-sandbox \
-		/bin/bash -ci 'cd /fzf/src; GOOS=android make android-build'
-
-.PHONY: all deps release test install uninstall clean \
-	linux arch ubuntu centos docker-arch docker-ubuntu docker-centos \
-	android-build docker-android ubuntu-android android

src/README.md

@@ -1,102 +0,0 @@
-fzf in Go
-=========
-
-<img src="https://cloud.githubusercontent.com/assets/700826/5725028/028ea834-9b93-11e4-9198-43088c3f295d.gif" height="463" alt="fzf in go">
-
-This directory contains the source code for the new fzf implementation in
-[Go][go].
-
-Upgrade from Ruby version
--------------------------
-
-The install script has been updated to download the right binary for your
-system. If you already have installed fzf, simply git-pull the repository and
-rerun the install script.
-
-```sh
-cd ~/.fzf
-git pull
-./install
-```
-
-Otherwise, follow [the instruction][install] as before. You can also install
-fzf using Homebrew if you prefer that way.
-
-Motivations
------------
-
-### No Ruby dependency
-
-There have always been complaints about fzf being a Ruby script. To make
-matters worse, Ruby 2.1 removed ncurses binding from its standard libary.
-Because of the change, users running Ruby 2.1 or above are forced to build C
-extensions of curses gem to meet the requirement of fzf. The new Go version
-will be distributed as an executable binary so it will be much more accessible
-and should be easier to setup.
-
-### Performance
-
-Many people have been surprised to see how fast fzf is even when it was
-written in Ruby. It stays quite responsive even for 100k+ lines, which is
-well above the size of the usual input.
-
-The new Go version, of course, is significantly faster than that. It has all
-the performance optimization techniques used in Ruby implementation and more.
-It also doesn't suffer from [GIL][gil], so the search performance scales
-proportional to the number of CPU cores. On my MacBook Pro (Mid 2012), the new
-version was shown to be an order of magnitude faster on certain cases. It also
-starts much faster though the difference may not be noticeable.
-
-Build
------
-
-```sh
-# Build fzf executables and tarballs
-make release
-
-# Install the executable to ../bin directory
-make install
-
-# Build executables and tarballs for Linux using Docker
-make linux
-```
-
-Test
-----
-
-Unit tests can be run with `make test`. Integration tests are written in Ruby
-script that should be run on tmux.
-
-```sh
-# Unit tests
-make test
-
-# Install the executable to ../bin directory
-make install
-
-# Integration tests
-ruby ../test/test_go.rb
-```
-
-Third-party libraries used
---------------------------
-
-- [ncurses][ncurses]
-- [mattn/go-runewidth](https://github.com/mattn/go-runewidth)
-    - Licensed under [MIT](http://mattn.mit-license.org)
-- [mattn/go-shellwords](https://github.com/mattn/go-shellwords)
-    - Licensed under [MIT](http://mattn.mit-license.org)
-- [mattn/go-isatty](https://github.com/mattn/go-isatty)
-    - Licensed under [MIT](http://mattn.mit-license.org)
-
-License
--------
-
-[MIT](LICENSE)
-
-[install]: https://github.com/junegunn/fzf#installation
-[go]:      https://golang.org/
-[gil]:     http://en.wikipedia.org/wiki/Global_Interpreter_Lock
-[ncurses]: https://www.gnu.org/software/ncurses/
-[req]:     http://golang.org/doc/install
-[termbox]: https://github.com/nsf/termbox-go

src/algo/algo.go

@@ -78,9 +78,11 @@ Scoring criteria
 */
 
 import (
+	"bytes"
 	"fmt"
 	"strings"
 	"unicode"
+	"unicode/utf8"
 
 	"github.com/junegunn/fzf/src/util"
 )
@@ -156,27 +158,17 @@ func posArray(withPos bool, len int) *[]int {
 	return nil
 }
 
-func alloc16(offset int, slab *util.Slab, size int, clear bool) (int, []int16) {
+func alloc16(offset int, slab *util.Slab, size int) (int, []int16) {
 	if slab != nil && cap(slab.I16) > offset+size {
 		slice := slab.I16[offset : offset+size]
-		if clear {
-			for idx := range slice {
-				slice[idx] = 0
-			}
-		}
 		return offset + size, slice
 	}
 	return offset, make([]int16, size)
 }
 
-func alloc32(offset int, slab *util.Slab, size int, clear bool) (int, []int32) {
+func alloc32(offset int, slab *util.Slab, size int) (int, []int32) {
 	if slab != nil && cap(slab.I32) > offset+size {
 		slice := slab.I32[offset : offset+size]
-		if clear {
-			for idx := range slice {
-				slice[idx] = 0
-			}
-		}
 		return offset + size, slice
 	}
 	return offset, make([]int32, size)
@@ -227,183 +219,311 @@ func bonusFor(prevClass charClass, class charClass) int16 {
 	return 0
 }
 
-func bonusAt(input util.Chars, idx int) int16 {
+func bonusAt(input *util.Chars, idx int) int16 {
 	if idx == 0 {
 		return bonusBoundary
 	}
 	return bonusFor(charClassOf(input.Get(idx-1)), charClassOf(input.Get(idx)))
 }
 
-type Algo func(caseSensitive bool, forward bool, input util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int)
+func normalizeRune(r rune) rune {
+	if r < 0x00C0 || r > 0x2184 {
+		return r
+	}
 
-func FuzzyMatchV2(caseSensitive bool, forward bool, input util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+	n := normalized[r]
+	if n > 0 {
+		return n
+	}
+	return r
+}
+
+// Algo functions make two assumptions
+// 1. "pattern" is given in lowercase if "caseSensitive" is false
+// 2. "pattern" is already normalized if "normalize" is true
+type Algo func(caseSensitive bool, normalize bool, forward bool, input *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int)
+
+func trySkip(input *util.Chars, caseSensitive bool, b byte, from int) int {
+	byteArray := input.Bytes()[from:]
+	idx := bytes.IndexByte(byteArray, b)
+	if idx == 0 {
+		// Can't skip any further
+		return from
+	}
+	// We may need to search for the uppercase letter again. We don't have to
+	// consider normalization as we can be sure that this is an ASCII string.
+	if !caseSensitive && b >= 'a' && b <= 'z' {
+		if idx > 0 {
+			byteArray = byteArray[:idx]
+		}
+		uidx := bytes.IndexByte(byteArray, b-32)
+		if uidx >= 0 {
+			idx = uidx
+		}
+	}
+	if idx < 0 {
+		return -1
+	}
+	return from + idx
+}
+
+func isAscii(runes []rune) bool {
+	for _, r := range runes {
+		if r >= utf8.RuneSelf {
+			return false
+		}
+	}
+	return true
+}
+
+func asciiFuzzyIndex(input *util.Chars, pattern []rune, caseSensitive bool) int {
+	// Can't determine
+	if !input.IsBytes() {
+		return 0
+	}
+
+	// Not possible
+	if !isAscii(pattern) {
+		return -1
+	}
+
+	firstIdx, idx := 0, 0
+	for pidx := 0; pidx < len(pattern); pidx++ {
+		idx = trySkip(input, caseSensitive, byte(pattern[pidx]), idx)
+		if idx < 0 {
+			return -1
+		}
+		if pidx == 0 && idx > 0 {
+			// Step back to find the right bonus point
+			firstIdx = idx - 1
+		}
+		idx++
+	}
+	return firstIdx
+}
+
+func debugV2(T []rune, pattern []rune, F []int32, lastIdx int, H []int16, C []int16) {
+	width := lastIdx - int(F[0]) + 1
+
+	for i, f := range F {
+		I := i * width
+		if i == 0 {
+			fmt.Print("  ")
+			for j := int(f); j <= lastIdx; j++ {
+				fmt.Printf(" " + string(T[j]) + " ")
+			}
+			fmt.Println()
+		}
+		fmt.Print(string(pattern[i]) + " ")
+		for idx := int(F[0]); idx < int(f); idx++ {
+			fmt.Print(" 0 ")
+		}
+		for idx := int(f); idx <= lastIdx; idx++ {
+			fmt.Printf("%2d ", H[i*width+idx-int(F[0])])
+		}
+		fmt.Println()
+
+		fmt.Print("  ")
+		for idx, p := range C[I : I+width] {
+			if idx+int(F[0]) < int(F[i]) {
+				p = 0
+			}
+			if p > 0 {
+				fmt.Printf("%2d ", p)
+			} else {
+				fmt.Print("   ")
+			}
+		}
+		fmt.Println()
+	}
+}
+
+func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	// Assume that pattern is given in lowercase if case-insensitive.
 	// First check if there's a match and calculate bonus for each position.
 	// If the input string is too long, consider finding the matching chars in
 	// this phase as well (non-optimal alignment).
-	N := input.Length()
 	M := len(pattern)
-	switch M {
+	if M == 0 {
-	case 0:
 		return Result{0, 0, 0}, posArray(withPos, M)
-	case 1:
-		return ExactMatchNaive(caseSensitive, forward, input, pattern[0:1], withPos, slab)
 	}
+	N := input.Length()
 
 	// Since O(nm) algorithm can be prohibitively expensive for large input,
 	// we fall back to the greedy algorithm.
 	if slab != nil && N*M > cap(slab.I16) {
-		return FuzzyMatchV1(caseSensitive, forward, input, pattern, withPos, slab)
+		return FuzzyMatchV1(caseSensitive, normalize, forward, input, pattern, withPos, slab)
+	}
+
+	// Phase 1. Optimized search for ASCII string
+	idx := asciiFuzzyIndex(input, pattern, caseSensitive)
+	if idx < 0 {
+		return Result{-1, -1, 0}, nil
 	}
 
 	// Reuse pre-allocated integer slice to avoid unnecessary sweeping of garbages
 	offset16 := 0
 	offset32 := 0
+	offset16, H0 := alloc16(offset16, slab, N)
+	offset16, C0 := alloc16(offset16, slab, N)
 	// Bonus point for each position
-	offset16, B := alloc16(offset16, slab, N, false)
+	offset16, B := alloc16(offset16, slab, N)
 	// The first occurrence of each character in the pattern
-	offset32, F := alloc32(offset32, slab, M, false)
+	offset32, F := alloc32(offset32, slab, M)
 	// Rune array
-	offset32, T := alloc32(offset32, slab, N, false)
+	_, T := alloc32(offset32, slab, N)
+	input.CopyRunes(T)
 
-	// Phase 1. Check if there's a match and calculate bonus for each point
+	// Phase 2. Calculate bonus for each point
-	pidx, lastIdx, prevClass := 0, 0, charNonWord
+	maxScore, maxScorePos := int16(0), 0
-	for idx := 0; idx < N; idx++ {
+	pidx, lastIdx := 0, 0
-		char := input.Get(idx)
+	pchar0, pchar, prevH0, prevClass, inGap := pattern[0], pattern[0], int16(0), charNonWord, false
+	Tsub := T[idx:]
+	H0sub, C0sub, Bsub := H0[idx:][:len(Tsub)], C0[idx:][:len(Tsub)], B[idx:][:len(Tsub)]
+	for off, char := range Tsub {
 		var class charClass
 		if char <= unicode.MaxASCII {
 			class = charClassOfAscii(char)
+			if !caseSensitive && class == charUpper {
+				char += 32
+			}
 		} else {
 			class = charClassOfNonAscii(char)
-		}
+			if !caseSensitive && class == charUpper {
-
-		if !caseSensitive && class == charUpper {
-			if char <= unicode.MaxASCII {
-				char += 32
-			} else {
 				char = unicode.To(unicode.LowerCase, char)
 			}
+			if normalize {
+				char = normalizeRune(char)
+			}
 		}
 
-		T[idx] = char
+		Tsub[off] = char
-		B[idx] = bonusFor(prevClass, class)
+		bonus := bonusFor(prevClass, class)
+		Bsub[off] = bonus
 		prevClass = class
 
-		if pidx < M {
+		if char == pchar {
-			if char == pattern[pidx] {
+			if pidx < M {
-				lastIdx = idx
+				F[pidx] = int32(idx + off)
-				F[pidx] = int32(idx)
 				pidx++
+				pchar = pattern[util.Min(pidx, M-1)]
 			}
-		} else {
+			lastIdx = idx + off
-			if char == pattern[M-1] {
-				lastIdx = idx
-			}
 		}
+
+		if char == pchar0 {
+			score := scoreMatch + bonus*bonusFirstCharMultiplier
+			H0sub[off] = score
+			C0sub[off] = 1
+			if M == 1 && (forward && score > maxScore || !forward && score >= maxScore) {
+				maxScore, maxScorePos = score, idx+off
+				if forward && bonus == bonusBoundary {
+					break
+				}
+			}
+			inGap = false
+		} else {
+			if inGap {
+				H0sub[off] = util.Max16(prevH0+scoreGapExtention, 0)
+			} else {
+				H0sub[off] = util.Max16(prevH0+scoreGapStart, 0)
+			}
+			C0sub[off] = 0
+			inGap = true
+		}
+		prevH0 = H0sub[off]
 	}
 	if pidx != M {
 		return Result{-1, -1, 0}, nil
 	}
+	if M == 1 {
+		result := Result{maxScorePos, maxScorePos + 1, int(maxScore)}
+		if !withPos {
+			return result, nil
+		}
+		pos := []int{maxScorePos}
+		return result, &pos
+	}
 
-	// Phase 2. Fill in score matrix (H)
+	// Phase 3. Fill in score matrix (H)
 	// Unlike the original algorithm, we do not allow omission.
-	width := lastIdx - int(F[0]) + 1
+	f0 := int(F[0])
-	offset16, H := alloc16(offset16, slab, width*M, false)
+	width := lastIdx - f0 + 1
+	offset16, H := alloc16(offset16, slab, width*M)
+	copy(H, H0[f0:lastIdx+1])
 
 	// Possible length of consecutive chunk at each position.
-	offset16, C := alloc16(offset16, slab, width*M, false)
+	_, C := alloc16(offset16, slab, width*M)
+	copy(C, C0[f0:lastIdx+1])
 
-	maxScore, maxScorePos := int16(0), 0
+	Fsub := F[1:]
-	for i := 0; i < M; i++ {
+	Psub := pattern[1:][:len(Fsub)]
-		I := i * width
+	for off, f := range Fsub {
+		f := int(f)
+		pchar := Psub[off]
+		pidx := off + 1
+		row := pidx * width
 		inGap := false
-		for j := int(F[i]); j <= lastIdx; j++ {
+		Tsub := T[f : lastIdx+1]
-			j0 := j - int(F[0])
+		Bsub := B[f:][:len(Tsub)]
+		Csub := C[row+f-f0:][:len(Tsub)]
+		Cdiag := C[row+f-f0-1-width:][:len(Tsub)]
+		Hsub := H[row+f-f0:][:len(Tsub)]
+		Hdiag := H[row+f-f0-1-width:][:len(Tsub)]
+		Hleft := H[row+f-f0-1:][:len(Tsub)]
+		Hleft[0] = 0
+		for off, char := range Tsub {
+			col := off + f
 			var s1, s2, consecutive int16
 
-			if j > int(F[i]) {
+			if inGap {
-				if inGap {
+				s2 = Hleft[off] + scoreGapExtention
-					s2 = H[I+j0-1] + scoreGapExtention
+			} else {
-				} else {
+				s2 = Hleft[off] + scoreGapStart
-					s2 = H[I+j0-1] + scoreGapStart
-				}
 			}
 
-			if pattern[i] == T[j] {
+			if pchar == char {
-				var diag int16
+				s1 = Hdiag[off] + scoreMatch
-				if i > 0 && j0 > 0 {
+				b := Bsub[off]
-					diag = H[I-width+j0-1]
+				consecutive = Cdiag[off] + 1
-				}
+				// Break consecutive chunk
-				s1 = diag + scoreMatch
+				if b == bonusBoundary {
-				b := B[j]
-				if i > 0 {
-					// j > 0 if i > 0
-					consecutive = C[I-width+j0-1] + 1
-					// Break consecutive chunk
-					if b == bonusBoundary {
-						consecutive = 1
-					} else if consecutive > 1 {
-						b = util.Max16(b, util.Max16(bonusConsecutive, B[j-int(consecutive)+1]))
-					}
-				} else {
 					consecutive = 1
-					b *= bonusFirstCharMultiplier
+				} else if consecutive > 1 {
+					b = util.Max16(b, util.Max16(bonusConsecutive, B[col-int(consecutive)+1]))
 				}
 				if s1+b < s2 {
-					s1 += B[j]
+					s1 += Bsub[off]
 					consecutive = 0
 				} else {
 					s1 += b
 				}
 			}
-			C[I+j0] = consecutive
+			Csub[off] = consecutive
 
 			inGap = s1 < s2
 			score := util.Max16(util.Max16(s1, s2), 0)
-			if i == M-1 && (forward && score > maxScore || !forward && score >= maxScore) {
+			if pidx == M-1 && (forward && score > maxScore || !forward && score >= maxScore) {
-				maxScore, maxScorePos = score, j
+				maxScore, maxScorePos = score, col
 			}
-			H[I+j0] = score
+			Hsub[off] = score
-		}
-
-		if DEBUG {
-			if i == 0 {
-				fmt.Print("  ")
-				for j := int(F[i]); j <= lastIdx; j++ {
-					fmt.Printf(" " + string(input.Get(j)) + " ")
-				}
-				fmt.Println()
-			}
-			fmt.Print(string(pattern[i]) + " ")
-			for idx := int(F[0]); idx < int(F[i]); idx++ {
-				fmt.Print(" 0 ")
-			}
-			for idx := int(F[i]); idx <= lastIdx; idx++ {
-				fmt.Printf("%2d ", H[i*width+idx-int(F[0])])
-			}
-			fmt.Println()
-
-			fmt.Print("  ")
-			for idx, p := range C[I : I+width] {
-				if idx+int(F[0]) < int(F[i]) {
-					p = 0
-				}
-				fmt.Printf("%2d ", p)
-			}
-			fmt.Println()
 		}
 	}
 
-	// Phase 3. (Optional) Backtrace to find character positions
+	if DEBUG {
+		debugV2(T, pattern, F, lastIdx, H, C)
+	}
+
+	// Phase 4. (Optional) Backtrace to find character positions
 	pos := posArray(withPos, M)
-	j := int(F[0])
+	j := f0
 	if withPos {
 		i := M - 1
 		j = maxScorePos
 		preferMatch := true
 		for {
 			I := i * width
-			j0 := j - int(F[0])
+			j0 := j - f0
 			s := H[I+j0]
 
 			var s1, s2 int16
@@ -432,7 +552,7 @@ func FuzzyMatchV2(caseSensitive bool, forward bool, input util.Chars, pattern []
 }
 
 // Implement the same sorting criteria as V2
-func calculateScore(caseSensitive bool, text util.Chars, pattern []rune, sidx int, eidx int, withPos bool) (int, *[]int) {
+func calculateScore(caseSensitive bool, normalize bool, text *util.Chars, pattern []rune, sidx int, eidx int, withPos bool) (int, *[]int) {
 	pidx, score, inGap, consecutive, firstBonus := 0, 0, false, 0, int16(0)
 	pos := posArray(withPos, len(pattern))
 	prevClass := charNonWord
@@ -449,6 +569,10 @@ func calculateScore(caseSensitive bool, text util.Chars, pattern []rune, sidx in
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
+		// pattern is already normalized
+		if normalize {
+			char = normalizeRune(char)
+		}
 		if char == pattern[pidx] {
 			if withPos {
 				*pos = append(*pos, idx)
@@ -488,10 +612,13 @@ func calculateScore(caseSensitive bool, text util.Chars, pattern []rune, sidx in
 }
 
 // FuzzyMatchV1 performs fuzzy-match
-func FuzzyMatchV1(caseSensitive bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func FuzzyMatchV1(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
+	if asciiFuzzyIndex(text, pattern, caseSensitive) < 0 {
+		return Result{-1, -1, 0}, nil
+	}
 
 	pidx := 0
 	sidx := -1
@@ -514,6 +641,9 @@ func FuzzyMatchV1(caseSensitive bool, forward bool, text util.Chars, pattern []r
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
+		if normalize {
+			char = normalizeRune(char)
+		}
 		pchar := pattern[indexAt(pidx, lenPattern, forward)]
 		if char == pchar {
 			if sidx < 0 {
@@ -553,7 +683,7 @@ func FuzzyMatchV1(caseSensitive bool, forward bool, text util.Chars, pattern []r
 			sidx, eidx = lenRunes-eidx, lenRunes-sidx
 		}
 
-		score, pos := calculateScore(caseSensitive, text, pattern, sidx, eidx, withPos)
+		score, pos := calculateScore(caseSensitive, normalize, text, pattern, sidx, eidx, withPos)
 		return Result{sidx, eidx, score}, pos
 	}
 	return Result{-1, -1, 0}, nil
@@ -568,7 +698,7 @@ func FuzzyMatchV1(caseSensitive bool, forward bool, text util.Chars, pattern []r
 // bonus point, instead of stopping immediately after finding the first match.
 // The solution is much cheaper since there is only one possible alignment of
 // the pattern.
-func ExactMatchNaive(caseSensitive bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func ExactMatchNaive(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
@@ -580,6 +710,10 @@ func ExactMatchNaive(caseSensitive bool, forward bool, text util.Chars, pattern
 		return Result{-1, -1, 0}, nil
 	}
 
+	if asciiFuzzyIndex(text, pattern, caseSensitive) < 0 {
+		return Result{-1, -1, 0}, nil
+	}
+
 	// For simplicity, only look at the bonus at the first character position
 	pidx := 0
 	bestPos, bonus, bestBonus := -1, int16(0), int16(-1)
@@ -593,6 +727,9 @@ func ExactMatchNaive(caseSensitive bool, forward bool, text util.Chars, pattern
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
+		if normalize {
+			char = normalizeRune(char)
+		}
 		pidx_ := indexAt(pidx, lenPattern, forward)
 		pchar := pattern[pidx_]
 		if pchar == char {
@@ -624,14 +761,14 @@ func ExactMatchNaive(caseSensitive bool, forward bool, text util.Chars, pattern
 			sidx = lenRunes - (bestPos + 1)
 			eidx = lenRunes - (bestPos - lenPattern + 1)
 		}
-		score, _ := calculateScore(caseSensitive, text, pattern, sidx, eidx, false)
+		score, _ := calculateScore(caseSensitive, normalize, text, pattern, sidx, eidx, false)
 		return Result{sidx, eidx, score}, nil
 	}
 	return Result{-1, -1, 0}, nil
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
@@ -645,17 +782,20 @@ func PrefixMatch(caseSensitive bool, forward bool, text util.Chars, pattern []ru
 		if !caseSensitive {
 			char = unicode.ToLower(char)
 		}
+		if normalize {
+			char = normalizeRune(char)
+		}
 		if char != r {
 			return Result{-1, -1, 0}, nil
 		}
 	}
 	lenPattern := len(pattern)
-	score, _ := calculateScore(caseSensitive, text, pattern, 0, lenPattern, false)
+	score, _ := calculateScore(caseSensitive, normalize, text, pattern, 0, lenPattern, false)
 	return Result{0, lenPattern, score}, nil
 }
 
 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenRunes := text.Length()
 	trimmedLen := lenRunes - text.TrailingWhitespaces()
 	if len(pattern) == 0 {
@@ -671,6 +811,9 @@ func SuffixMatch(caseSensitive bool, forward bool, text util.Chars, pattern []ru
 		if !caseSensitive {
 			char = unicode.ToLower(char)
 		}
+		if normalize {
+			char = normalizeRune(char)
+		}
 		if char != r {
 			return Result{-1, -1, 0}, nil
 		}
@@ -678,21 +821,37 @@ func SuffixMatch(caseSensitive bool, forward bool, text util.Chars, pattern []ru
 	lenPattern := len(pattern)
 	sidx := trimmedLen - lenPattern
 	eidx := trimmedLen
-	score, _ := calculateScore(caseSensitive, text, pattern, sidx, eidx, false)
+	score, _ := calculateScore(caseSensitive, normalize, text, pattern, sidx, eidx, false)
 	return Result{sidx, eidx, score}, nil
 }
 
 // EqualMatch performs equal-match
-func EqualMatch(caseSensitive bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenPattern := len(pattern)
 	if text.Length() != lenPattern {
 		return Result{-1, -1, 0}, nil
 	}
-	runesStr := text.ToString()
+	match := true
-	if !caseSensitive {
+	if normalize {
-		runesStr = strings.ToLower(runesStr)
+		runes := text.ToRunes()
+		for idx, pchar := range pattern {
+			char := runes[idx]
+			if !caseSensitive {
+				char = unicode.To(unicode.LowerCase, char)
+			}
+			if normalizeRune(pchar) != normalizeRune(char) {
+				match = false
+				break
+			}
+		}
+	} else {
+		runesStr := text.ToString()
+		if !caseSensitive {
+			runesStr = strings.ToLower(runesStr)
+		}
+		match = runesStr == string(pattern)
 	}
-	if runesStr == string(pattern) {
+	if match {
 		return Result{0, lenPattern, (scoreMatch+bonusBoundary)*lenPattern +
 			(bonusFirstCharMultiplier-1)*bonusBoundary}, nil
 	}

src/algo/algo_test.go

@@ -10,10 +10,15 @@ import (
 )
 
 func assertMatch(t *testing.T, fun Algo, caseSensitive, forward bool, input, pattern string, sidx int, eidx int, score int) {
+	assertMatch2(t, fun, caseSensitive, false, forward, input, pattern, sidx, eidx, score)
+}
+
+func assertMatch2(t *testing.T, fun Algo, caseSensitive, normalize, forward bool, input, pattern string, sidx int, eidx int, score int) {
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	res, pos := fun(caseSensitive, forward, util.RunesToChars([]rune(input)), []rune(pattern), true, nil)
+	chars := util.ToChars([]byte(input))
+	res, pos := fun(caseSensitive, normalize, forward, &chars, []rune(pattern), true, nil)
 	var start, end int
 	if pos == nil || len(*pos) == 0 {
 		start = res.Start
@@ -156,6 +161,21 @@ func TestEmptyPattern(t *testing.T) {
 	}
 }
 
+func TestNormalize(t *testing.T) {
+	caseSensitive := false
+	normalize := true
+	forward := true
+	test := func(input, pattern string, sidx, eidx, score int, funs ...Algo) {
+		for _, fun := range funs {
+			assertMatch2(t, fun, caseSensitive, normalize, forward,
+				input, pattern, sidx, eidx, score)
+		}
+	}
+	test("Só Danço Samba", "So", 0, 2, 56, FuzzyMatchV1, FuzzyMatchV2, PrefixMatch, ExactMatchNaive)
+	test("Só Danço Samba", "sodc", 0, 7, 89, FuzzyMatchV1, FuzzyMatchV2)
+	test("Danço", "danco", 0, 5, 128, FuzzyMatchV1, FuzzyMatchV2, PrefixMatch, SuffixMatch, ExactMatchNaive, EqualMatch)
+}
+
 func TestLongString(t *testing.T) {
 	bytes := make([]byte, math.MaxUint16*2)
 	for i := range bytes {

src/algo/normalize.go

@@ -0,0 +1,424 @@
+// Normalization of latin script letters
+// Reference: http://www.unicode.org/Public/UCD/latest/ucd/Index.txt
+
+package algo
+
+var normalized map[rune]rune = map[rune]rune{
+	0x00E1: 'a', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0103: 'a', //  WITH BREVE, LATIN SMALL LETTER
+	0x01CE: 'a', //  WITH CARON, LATIN SMALL LETTER
+	0x00E2: 'a', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x00E4: 'a', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x0227: 'a', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1EA1: 'a', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0201: 'a', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x00E0: 'a', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1EA3: 'a', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x0203: 'a', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x0101: 'a', //  WITH MACRON, LATIN SMALL LETTER
+	0x0105: 'a', //  WITH OGONEK, LATIN SMALL LETTER
+	0x1E9A: 'a', //  WITH RIGHT HALF RING, LATIN SMALL LETTER
+	0x00E5: 'a', //  WITH RING ABOVE, LATIN SMALL LETTER
+	0x1E01: 'a', //  WITH RING BELOW, LATIN SMALL LETTER
+	0x00E3: 'a', //  WITH TILDE, LATIN SMALL LETTER
+	0x0363: 'a', // , COMBINING LATIN SMALL LETTER
+	0x0250: 'a', // , LATIN SMALL LETTER TURNED
+	0x1E03: 'b', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E05: 'b', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0253: 'b', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E07: 'b', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x0180: 'b', //  WITH STROKE, LATIN SMALL LETTER
+	0x0183: 'b', //  WITH TOPBAR, LATIN SMALL LETTER
+	0x0107: 'c', //  WITH ACUTE, LATIN SMALL LETTER
+	0x010D: 'c', //  WITH CARON, LATIN SMALL LETTER
+	0x00E7: 'c', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x0109: 'c', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x0255: 'c', //  WITH CURL, LATIN SMALL LETTER
+	0x010B: 'c', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x0188: 'c', //  WITH HOOK, LATIN SMALL LETTER
+	0x023C: 'c', //  WITH STROKE, LATIN SMALL LETTER
+	0x0368: 'c', // , COMBINING LATIN SMALL LETTER
+	0x0297: 'c', // , LATIN LETTER STRETCHED
+	0x2184: 'c', // , LATIN SMALL LETTER REVERSED
+	0x010F: 'd', //  WITH CARON, LATIN SMALL LETTER
+	0x1E11: 'd', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E13: 'd', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x0221: 'd', //  WITH CURL, LATIN SMALL LETTER
+	0x1E0B: 'd', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E0D: 'd', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0257: 'd', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E0F: 'd', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x0111: 'd', //  WITH STROKE, LATIN SMALL LETTER
+	0x0256: 'd', //  WITH TAIL, LATIN SMALL LETTER
+	0x018C: 'd', //  WITH TOPBAR, LATIN SMALL LETTER
+	0x0369: 'd', // , COMBINING LATIN SMALL LETTER
+	0x00E9: 'e', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0115: 'e', //  WITH BREVE, LATIN SMALL LETTER
+	0x011B: 'e', //  WITH CARON, LATIN SMALL LETTER
+	0x0229: 'e', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E19: 'e', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x00EA: 'e', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x00EB: 'e', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x0117: 'e', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1EB9: 'e', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0205: 'e', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x00E8: 'e', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1EBB: 'e', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x025D: 'e', //  WITH HOOK, LATIN SMALL LETTER REVERSED OPEN
+	0x0207: 'e', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x0113: 'e', //  WITH MACRON, LATIN SMALL LETTER
+	0x0119: 'e', //  WITH OGONEK, LATIN SMALL LETTER
+	0x0247: 'e', //  WITH STROKE, LATIN SMALL LETTER
+	0x1E1B: 'e', //  WITH TILDE BELOW, LATIN SMALL LETTER
+	0x1EBD: 'e', //  WITH TILDE, LATIN SMALL LETTER
+	0x0364: 'e', // , COMBINING LATIN SMALL LETTER
+	0x029A: 'e', // , LATIN SMALL LETTER CLOSED OPEN
+	0x025E: 'e', // , LATIN SMALL LETTER CLOSED REVERSED OPEN
+	0x025B: 'e', // , LATIN SMALL LETTER OPEN
+	0x0258: 'e', // , LATIN SMALL LETTER REVERSED
+	0x025C: 'e', // , LATIN SMALL LETTER REVERSED OPEN
+	0x01DD: 'e', // , LATIN SMALL LETTER TURNED
+	0x1D08: 'e', // , LATIN SMALL LETTER TURNED OPEN
+	0x1E1F: 'f', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x0192: 'f', //  WITH HOOK, LATIN SMALL LETTER
+	0x01F5: 'g', //  WITH ACUTE, LATIN SMALL LETTER
+	0x011F: 'g', //  WITH BREVE, LATIN SMALL LETTER
+	0x01E7: 'g', //  WITH CARON, LATIN SMALL LETTER
+	0x0123: 'g', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x011D: 'g', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x0121: 'g', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x0260: 'g', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E21: 'g', //  WITH MACRON, LATIN SMALL LETTER
+	0x01E5: 'g', //  WITH STROKE, LATIN SMALL LETTER
+	0x0261: 'g', // , LATIN SMALL LETTER SCRIPT
+	0x1E2B: 'h', //  WITH BREVE BELOW, LATIN SMALL LETTER
+	0x021F: 'h', //  WITH CARON, LATIN SMALL LETTER
+	0x1E29: 'h', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x0125: 'h', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x1E27: 'h', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1E23: 'h', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E25: 'h', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x02AE: 'h', //  WITH FISHHOOK, LATIN SMALL LETTER TURNED
+	0x0266: 'h', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E96: 'h', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x0127: 'h', //  WITH STROKE, LATIN SMALL LETTER
+	0x036A: 'h', // , COMBINING LATIN SMALL LETTER
+	0x0265: 'h', // , LATIN SMALL LETTER TURNED
+	0x2095: 'h', // , LATIN SUBSCRIPT SMALL LETTER
+	0x00ED: 'i', //  WITH ACUTE, LATIN SMALL LETTER
+	0x012D: 'i', //  WITH BREVE, LATIN SMALL LETTER
+	0x01D0: 'i', //  WITH CARON, LATIN SMALL LETTER
+	0x00EE: 'i', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x00EF: 'i', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1ECB: 'i', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0209: 'i', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x00EC: 'i', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1EC9: 'i', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x020B: 'i', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x012B: 'i', //  WITH MACRON, LATIN SMALL LETTER
+	0x012F: 'i', //  WITH OGONEK, LATIN SMALL LETTER
+	0x0268: 'i', //  WITH STROKE, LATIN SMALL LETTER
+	0x1E2D: 'i', //  WITH TILDE BELOW, LATIN SMALL LETTER
+	0x0129: 'i', //  WITH TILDE, LATIN SMALL LETTER
+	0x0365: 'i', // , COMBINING LATIN SMALL LETTER
+	0x0131: 'i', // , LATIN SMALL LETTER DOTLESS
+	0x1D09: 'i', // , LATIN SMALL LETTER TURNED
+	0x1D62: 'i', // , LATIN SUBSCRIPT SMALL LETTER
+	0x2071: 'i', // , SUPERSCRIPT LATIN SMALL LETTER
+	0x01F0: 'j', //  WITH CARON, LATIN SMALL LETTER
+	0x0135: 'j', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x029D: 'j', //  WITH CROSSED-TAIL, LATIN SMALL LETTER
+	0x0249: 'j', //  WITH STROKE, LATIN SMALL LETTER
+	0x025F: 'j', //  WITH STROKE, LATIN SMALL LETTER DOTLESS
+	0x0237: 'j', // , LATIN SMALL LETTER DOTLESS
+	0x1E31: 'k', //  WITH ACUTE, LATIN SMALL LETTER
+	0x01E9: 'k', //  WITH CARON, LATIN SMALL LETTER
+	0x0137: 'k', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E33: 'k', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0199: 'k', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E35: 'k', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x029E: 'k', // , LATIN SMALL LETTER TURNED
+	0x2096: 'k', // , LATIN SUBSCRIPT SMALL LETTER
+	0x013A: 'l', //  WITH ACUTE, LATIN SMALL LETTER
+	0x019A: 'l', //  WITH BAR, LATIN SMALL LETTER
+	0x026C: 'l', //  WITH BELT, LATIN SMALL LETTER
+	0x013E: 'l', //  WITH CARON, LATIN SMALL LETTER
+	0x013C: 'l', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E3D: 'l', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x0234: 'l', //  WITH CURL, LATIN SMALL LETTER
+	0x1E37: 'l', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x1E3B: 'l', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x0140: 'l', //  WITH MIDDLE DOT, LATIN SMALL LETTER
+	0x026B: 'l', //  WITH MIDDLE TILDE, LATIN SMALL LETTER
+	0x026D: 'l', //  WITH RETROFLEX HOOK, LATIN SMALL LETTER
+	0x0142: 'l', //  WITH STROKE, LATIN SMALL LETTER
+	0x2097: 'l', // , LATIN SUBSCRIPT SMALL LETTER
+	0x1E3F: 'm', //  WITH ACUTE, LATIN SMALL LETTER
+	0x1E41: 'm', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E43: 'm', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0271: 'm', //  WITH HOOK, LATIN SMALL LETTER
+	0x0270: 'm', //  WITH LONG LEG, LATIN SMALL LETTER TURNED
+	0x036B: 'm', // , COMBINING LATIN SMALL LETTER
+	0x1D1F: 'm', // , LATIN SMALL LETTER SIDEWAYS TURNED
+	0x026F: 'm', // , LATIN SMALL LETTER TURNED
+	0x2098: 'm', // , LATIN SUBSCRIPT SMALL LETTER
+	0x0144: 'n', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0148: 'n', //  WITH CARON, LATIN SMALL LETTER
+	0x0146: 'n', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E4B: 'n', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x0235: 'n', //  WITH CURL, LATIN SMALL LETTER
+	0x1E45: 'n', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E47: 'n', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x01F9: 'n', //  WITH GRAVE, LATIN SMALL LETTER
+	0x0272: 'n', //  WITH LEFT HOOK, LATIN SMALL LETTER
+	0x1E49: 'n', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x019E: 'n', //  WITH LONG RIGHT LEG, LATIN SMALL LETTER
+	0x0273: 'n', //  WITH RETROFLEX HOOK, LATIN SMALL LETTER
+	0x00F1: 'n', //  WITH TILDE, LATIN SMALL LETTER
+	0x2099: 'n', // , LATIN SUBSCRIPT SMALL LETTER
+	0x00F3: 'o', //  WITH ACUTE, LATIN SMALL LETTER
+	0x014F: 'o', //  WITH BREVE, LATIN SMALL LETTER
+	0x01D2: 'o', //  WITH CARON, LATIN SMALL LETTER
+	0x00F4: 'o', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x00F6: 'o', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x022F: 'o', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1ECD: 'o', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0151: 'o', //  WITH DOUBLE ACUTE, LATIN SMALL LETTER
+	0x020D: 'o', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x00F2: 'o', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1ECF: 'o', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x01A1: 'o', //  WITH HORN, LATIN SMALL LETTER
+	0x020F: 'o', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x014D: 'o', //  WITH MACRON, LATIN SMALL LETTER
+	0x01EB: 'o', //  WITH OGONEK, LATIN SMALL LETTER
+	0x00F8: 'o', //  WITH STROKE, LATIN SMALL LETTER
+	0x1D13: 'o', //  WITH STROKE, LATIN SMALL LETTER SIDEWAYS
+	0x00F5: 'o', //  WITH TILDE, LATIN SMALL LETTER
+	0x0366: 'o', // , COMBINING LATIN SMALL LETTER
+	0x0275: 'o', // , LATIN SMALL LETTER BARRED
+	0x1D17: 'o', // , LATIN SMALL LETTER BOTTOM HALF
+	0x0254: 'o', // , LATIN SMALL LETTER OPEN
+	0x1D11: 'o', // , LATIN SMALL LETTER SIDEWAYS
+	0x1D12: 'o', // , LATIN SMALL LETTER SIDEWAYS OPEN
+	0x1D16: 'o', // , LATIN SMALL LETTER TOP HALF
+	0x1E55: 'p', //  WITH ACUTE, LATIN SMALL LETTER
+	0x1E57: 'p', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x01A5: 'p', //  WITH HOOK, LATIN SMALL LETTER
+	0x209A: 'p', // , LATIN SUBSCRIPT SMALL LETTER
+	0x024B: 'q', //  WITH HOOK TAIL, LATIN SMALL LETTER
+	0x02A0: 'q', //  WITH HOOK, LATIN SMALL LETTER
+	0x0155: 'r', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0159: 'r', //  WITH CARON, LATIN SMALL LETTER
+	0x0157: 'r', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E59: 'r', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E5B: 'r', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0211: 'r', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x027E: 'r', //  WITH FISHHOOK, LATIN SMALL LETTER
+	0x027F: 'r', //  WITH FISHHOOK, LATIN SMALL LETTER REVERSED
+	0x027B: 'r', //  WITH HOOK, LATIN SMALL LETTER TURNED
+	0x0213: 'r', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x1E5F: 'r', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x027C: 'r', //  WITH LONG LEG, LATIN SMALL LETTER
+	0x027A: 'r', //  WITH LONG LEG, LATIN SMALL LETTER TURNED
+	0x024D: 'r', //  WITH STROKE, LATIN SMALL LETTER
+	0x027D: 'r', //  WITH TAIL, LATIN SMALL LETTER
+	0x036C: 'r', // , COMBINING LATIN SMALL LETTER
+	0x0279: 'r', // , LATIN SMALL LETTER TURNED
+	0x1D63: 'r', // , LATIN SUBSCRIPT SMALL LETTER
+	0x015B: 's', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0161: 's', //  WITH CARON, LATIN SMALL LETTER
+	0x015F: 's', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x015D: 's', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x0219: 's', //  WITH COMMA BELOW, LATIN SMALL LETTER
+	0x1E61: 's', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E9B: 's', //  WITH DOT ABOVE, LATIN SMALL LETTER LONG
+	0x1E63: 's', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0282: 's', //  WITH HOOK, LATIN SMALL LETTER
+	0x023F: 's', //  WITH SWASH TAIL, LATIN SMALL LETTER
+	0x017F: 's', // , LATIN SMALL LETTER LONG
+	0x00DF: 's', // , LATIN SMALL LETTER SHARP
+	0x209B: 's', // , LATIN SUBSCRIPT SMALL LETTER
+	0x0165: 't', //  WITH CARON, LATIN SMALL LETTER
+	0x0163: 't', //  WITH CEDILLA, LATIN SMALL LETTER
+	0x1E71: 't', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x021B: 't', //  WITH COMMA BELOW, LATIN SMALL LETTER
+	0x0236: 't', //  WITH CURL, LATIN SMALL LETTER
+	0x1E97: 't', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1E6B: 't', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E6D: 't', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x01AD: 't', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E6F: 't', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x01AB: 't', //  WITH PALATAL HOOK, LATIN SMALL LETTER
+	0x0288: 't', //  WITH RETROFLEX HOOK, LATIN SMALL LETTER
+	0x0167: 't', //  WITH STROKE, LATIN SMALL LETTER
+	0x036D: 't', // , COMBINING LATIN SMALL LETTER
+	0x0287: 't', // , LATIN SMALL LETTER TURNED
+	0x209C: 't', // , LATIN SUBSCRIPT SMALL LETTER
+	0x0289: 'u', //  BAR, LATIN SMALL LETTER
+	0x00FA: 'u', //  WITH ACUTE, LATIN SMALL LETTER
+	0x016D: 'u', //  WITH BREVE, LATIN SMALL LETTER
+	0x01D4: 'u', //  WITH CARON, LATIN SMALL LETTER
+	0x1E77: 'u', //  WITH CIRCUMFLEX BELOW, LATIN SMALL LETTER
+	0x00FB: 'u', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x1E73: 'u', //  WITH DIAERESIS BELOW, LATIN SMALL LETTER
+	0x00FC: 'u', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1EE5: 'u', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0171: 'u', //  WITH DOUBLE ACUTE, LATIN SMALL LETTER
+	0x0215: 'u', //  WITH DOUBLE GRAVE, LATIN SMALL LETTER
+	0x00F9: 'u', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1EE7: 'u', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x01B0: 'u', //  WITH HORN, LATIN SMALL LETTER
+	0x0217: 'u', //  WITH INVERTED BREVE, LATIN SMALL LETTER
+	0x016B: 'u', //  WITH MACRON, LATIN SMALL LETTER
+	0x0173: 'u', //  WITH OGONEK, LATIN SMALL LETTER
+	0x016F: 'u', //  WITH RING ABOVE, LATIN SMALL LETTER
+	0x1E75: 'u', //  WITH TILDE BELOW, LATIN SMALL LETTER
+	0x0169: 'u', //  WITH TILDE, LATIN SMALL LETTER
+	0x0367: 'u', // , COMBINING LATIN SMALL LETTER
+	0x1D1D: 'u', // , LATIN SMALL LETTER SIDEWAYS
+	0x1D1E: 'u', // , LATIN SMALL LETTER SIDEWAYS DIAERESIZED
+	0x1D64: 'u', // , LATIN SUBSCRIPT SMALL LETTER
+	0x1E7F: 'v', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x028B: 'v', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E7D: 'v', //  WITH TILDE, LATIN SMALL LETTER
+	0x036E: 'v', // , COMBINING LATIN SMALL LETTER
+	0x028C: 'v', // , LATIN SMALL LETTER TURNED
+	0x1D65: 'v', // , LATIN SUBSCRIPT SMALL LETTER
+	0x1E83: 'w', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0175: 'w', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x1E85: 'w', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1E87: 'w', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E89: 'w', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x1E81: 'w', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1E98: 'w', //  WITH RING ABOVE, LATIN SMALL LETTER
+	0x028D: 'w', // , LATIN SMALL LETTER TURNED
+	0x1E8D: 'x', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1E8B: 'x', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x036F: 'x', // , COMBINING LATIN SMALL LETTER
+	0x00FD: 'y', //  WITH ACUTE, LATIN SMALL LETTER
+	0x0177: 'y', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x00FF: 'y', //  WITH DIAERESIS, LATIN SMALL LETTER
+	0x1E8F: 'y', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1EF5: 'y', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x1EF3: 'y', //  WITH GRAVE, LATIN SMALL LETTER
+	0x1EF7: 'y', //  WITH HOOK ABOVE, LATIN SMALL LETTER
+	0x01B4: 'y', //  WITH HOOK, LATIN SMALL LETTER
+	0x0233: 'y', //  WITH MACRON, LATIN SMALL LETTER
+	0x1E99: 'y', //  WITH RING ABOVE, LATIN SMALL LETTER
+	0x024F: 'y', //  WITH STROKE, LATIN SMALL LETTER
+	0x1EF9: 'y', //  WITH TILDE, LATIN SMALL LETTER
+	0x028E: 'y', // , LATIN SMALL LETTER TURNED
+	0x017A: 'z', //  WITH ACUTE, LATIN SMALL LETTER
+	0x017E: 'z', //  WITH CARON, LATIN SMALL LETTER
+	0x1E91: 'z', //  WITH CIRCUMFLEX, LATIN SMALL LETTER
+	0x0291: 'z', //  WITH CURL, LATIN SMALL LETTER
+	0x017C: 'z', //  WITH DOT ABOVE, LATIN SMALL LETTER
+	0x1E93: 'z', //  WITH DOT BELOW, LATIN SMALL LETTER
+	0x0225: 'z', //  WITH HOOK, LATIN SMALL LETTER
+	0x1E95: 'z', //  WITH LINE BELOW, LATIN SMALL LETTER
+	0x0290: 'z', //  WITH RETROFLEX HOOK, LATIN SMALL LETTER
+	0x01B6: 'z', //  WITH STROKE, LATIN SMALL LETTER
+	0x0240: 'z', //  WITH SWASH TAIL, LATIN SMALL LETTER
+	0x0251: 'a', // , latin small letter script
+	0x00C1: 'A', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x00C2: 'A', //  WITH CIRCUMFLEX, LATIN CAPITAL LETTER
+	0x00C4: 'A', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x00C0: 'A', //  WITH GRAVE, LATIN CAPITAL LETTER
+	0x00C5: 'A', //  WITH RING ABOVE, LATIN CAPITAL LETTER
+	0x023A: 'A', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x00C3: 'A', //  WITH TILDE, LATIN CAPITAL LETTER
+	0x1D00: 'A', // , LATIN LETTER SMALL CAPITAL
+	0x0181: 'B', //  WITH HOOK, LATIN CAPITAL LETTER
+	0x0243: 'B', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x0299: 'B', // , LATIN LETTER SMALL CAPITAL
+	0x1D03: 'B', // , LATIN LETTER SMALL CAPITAL BARRED
+	0x00C7: 'C', //  WITH CEDILLA, LATIN CAPITAL LETTER
+	0x023B: 'C', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x1D04: 'C', // , LATIN LETTER SMALL CAPITAL
+	0x018A: 'D', //  WITH HOOK, LATIN CAPITAL LETTER
+	0x0189: 'D', // , LATIN CAPITAL LETTER AFRICAN
+	0x1D05: 'D', // , LATIN LETTER SMALL CAPITAL
+	0x00C9: 'E', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x00CA: 'E', //  WITH CIRCUMFLEX, LATIN CAPITAL LETTER
+	0x00CB: 'E', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x00C8: 'E', //  WITH GRAVE, LATIN CAPITAL LETTER
+	0x0246: 'E', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x0190: 'E', // , LATIN CAPITAL LETTER OPEN
+	0x018E: 'E', // , LATIN CAPITAL LETTER REVERSED
+	0x1D07: 'E', // , LATIN LETTER SMALL CAPITAL
+	0x0193: 'G', //  WITH HOOK, LATIN CAPITAL LETTER
+	0x029B: 'G', //  WITH HOOK, LATIN LETTER SMALL CAPITAL
+	0x0262: 'G', // , LATIN LETTER SMALL CAPITAL
+	0x029C: 'H', // , LATIN LETTER SMALL CAPITAL
+	0x00CD: 'I', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x00CE: 'I', //  WITH CIRCUMFLEX, LATIN CAPITAL LETTER
+	0x00CF: 'I', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x0130: 'I', //  WITH DOT ABOVE, LATIN CAPITAL LETTER
+	0x00CC: 'I', //  WITH GRAVE, LATIN CAPITAL LETTER
+	0x0197: 'I', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x026A: 'I', // , LATIN LETTER SMALL CAPITAL
+	0x0248: 'J', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x1D0A: 'J', // , LATIN LETTER SMALL CAPITAL
+	0x1D0B: 'K', // , LATIN LETTER SMALL CAPITAL
+	0x023D: 'L', //  WITH BAR, LATIN CAPITAL LETTER
+	0x1D0C: 'L', //  WITH STROKE, LATIN LETTER SMALL CAPITAL
+	0x029F: 'L', // , LATIN LETTER SMALL CAPITAL
+	0x019C: 'M', // , LATIN CAPITAL LETTER TURNED
+	0x1D0D: 'M', // , LATIN LETTER SMALL CAPITAL
+	0x019D: 'N', //  WITH LEFT HOOK, LATIN CAPITAL LETTER
+	0x0220: 'N', //  WITH LONG RIGHT LEG, LATIN CAPITAL LETTER
+	0x00D1: 'N', //  WITH TILDE, LATIN CAPITAL LETTER
+	0x0274: 'N', // , LATIN LETTER SMALL CAPITAL
+	0x1D0E: 'N', // , LATIN LETTER SMALL CAPITAL REVERSED
+	0x00D3: 'O', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x00D4: 'O', //  WITH CIRCUMFLEX, LATIN CAPITAL LETTER
+	0x00D6: 'O', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x00D2: 'O', //  WITH GRAVE, LATIN CAPITAL LETTER
+	0x019F: 'O', //  WITH MIDDLE TILDE, LATIN CAPITAL LETTER
+	0x00D8: 'O', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x00D5: 'O', //  WITH TILDE, LATIN CAPITAL LETTER
+	0x0186: 'O', // , LATIN CAPITAL LETTER OPEN
+	0x1D0F: 'O', // , LATIN LETTER SMALL CAPITAL
+	0x1D10: 'O', // , LATIN LETTER SMALL CAPITAL OPEN
+	0x1D18: 'P', // , LATIN LETTER SMALL CAPITAL
+	0x024A: 'Q', //  WITH HOOK TAIL, LATIN CAPITAL LETTER SMALL
+	0x024C: 'R', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x0280: 'R', // , LATIN LETTER SMALL CAPITAL
+	0x0281: 'R', // , LATIN LETTER SMALL CAPITAL INVERTED
+	0x1D19: 'R', // , LATIN LETTER SMALL CAPITAL REVERSED
+	0x1D1A: 'R', // , LATIN LETTER SMALL CAPITAL TURNED
+	0x023E: 'T', //  WITH DIAGONAL STROKE, LATIN CAPITAL LETTER
+	0x01AE: 'T', //  WITH RETROFLEX HOOK, LATIN CAPITAL LETTER
+	0x1D1B: 'T', // , LATIN LETTER SMALL CAPITAL
+	0x0244: 'U', //  BAR, LATIN CAPITAL LETTER
+	0x00DA: 'U', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x00DB: 'U', //  WITH CIRCUMFLEX, LATIN CAPITAL LETTER
+	0x00DC: 'U', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x00D9: 'U', //  WITH GRAVE, LATIN CAPITAL LETTER
+	0x1D1C: 'U', // , LATIN LETTER SMALL CAPITAL
+	0x01B2: 'V', //  WITH HOOK, LATIN CAPITAL LETTER
+	0x0245: 'V', // , LATIN CAPITAL LETTER TURNED
+	0x1D20: 'V', // , LATIN LETTER SMALL CAPITAL
+	0x1D21: 'W', // , LATIN LETTER SMALL CAPITAL
+	0x00DD: 'Y', //  WITH ACUTE, LATIN CAPITAL LETTER
+	0x0178: 'Y', //  WITH DIAERESIS, LATIN CAPITAL LETTER
+	0x024E: 'Y', //  WITH STROKE, LATIN CAPITAL LETTER
+	0x028F: 'Y', // , LATIN LETTER SMALL CAPITAL
+	0x1D22: 'Z', // , LATIN LETTER SMALL CAPITAL
+}
+
+// NormalizeRunes normalizes latin script letters
+func NormalizeRunes(runes []rune) []rune {
+	ret := make([]rune, len(runes))
+	copy(ret, runes)
+	for idx, r := range runes {
+		if r < 0x00C0 || r > 0x2184 {
+			continue
+		}
+		n := normalized[r]
+		if n > 0 {
+			ret[idx] = normalized[r]
+		}
+	}
+	return ret
+}

src/ansi.go

@@ -32,6 +32,55 @@ func (s *ansiState) equals(t *ansiState) bool {
 	return s.fg == t.fg && s.bg == t.bg && s.attr == t.attr
 }
 
+func (s *ansiState) ToString() string {
+	if !s.colored() {
+		return ""
+	}
+
+	ret := ""
+	if s.attr&tui.Bold > 0 {
+		ret += "1;"
+	}
+	if s.attr&tui.Dim > 0 {
+		ret += "2;"
+	}
+	if s.attr&tui.Italic > 0 {
+		ret += "3;"
+	}
+	if s.attr&tui.Underline > 0 {
+		ret += "4;"
+	}
+	if s.attr&tui.Blink > 0 {
+		ret += "5;"
+	}
+	if s.attr&tui.Reverse > 0 {
+		ret += "7;"
+	}
+	ret += toAnsiString(s.fg, 30) + toAnsiString(s.bg, 40)
+
+	return "\x1b[" + strings.TrimSuffix(ret, ";") + "m"
+}
+
+func toAnsiString(color tui.Color, offset int) string {
+	col := int(color)
+	ret := ""
+	if col == -1 {
+		ret += strconv.Itoa(offset + 9)
+	} else if col < 8 {
+		ret += strconv.Itoa(offset + col)
+	} else if col < 16 {
+		ret += strconv.Itoa(offset - 30 + 90 + col - 8)
+	} else if col < 256 {
+		ret += strconv.Itoa(offset+8) + ";5;" + strconv.Itoa(col)
+	} else if col >= (1 << 24) {
+		r := strconv.Itoa((col >> 16) & 0xff)
+		g := strconv.Itoa((col >> 8) & 0xff)
+		b := strconv.Itoa(col & 0xff)
+		ret += strconv.Itoa(offset+8) + ";2;" + r + ";" + g + ";" + b
+	}
+	return ret + ";"
+}
+
 var ansiRegex *regexp.Regexp
 
 func init() {
@@ -44,7 +93,21 @@ func init() {
 	*/
 	// The following regular expression will include not all but most of the
 	// frequently used ANSI sequences
-	ansiRegex = regexp.MustCompile("\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b.|[\x08\x0e\x0f]")
+	ansiRegex = regexp.MustCompile("(?:\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b.|[\x0e\x0f]|.\x08)")
+}
+
+func findAnsiStart(str string) int {
+	idx := 0
+	for ; idx < len(str); idx++ {
+		b := str[idx]
+		if b == 0x1b || b == 0x0e || b == 0x0f {
+			return idx
+		}
+		if b == 0x08 && idx > 0 {
+			return idx - 1
+		}
+	}
+	return idx
 }
 
 func extractColor(str string, state *ansiState, proc func(string, *ansiState) bool) (string, *[]ansiOffset, *ansiState) {
@@ -55,50 +118,76 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 		offsets = append(offsets, ansiOffset{[2]int32{0, 0}, *state})
 	}
 
-	idx := 0
+	prevIdx := 0
-	for _, offset := range ansiRegex.FindAllStringIndex(str, -1) {
+	runeCount := 0
-		prev := str[idx:offset[0]]
+	for idx := 0; idx < len(str); {
-		output.WriteString(prev)
+		idx += findAnsiStart(str[idx:])
+		if idx == len(str) {
+			break
+		}
+
+		// Make sure that we found an ANSI code
+		offset := ansiRegex.FindStringIndex(str[idx:])
+		if len(offset) < 2 {
+			idx++
+			continue
+		}
+		offset[0] += idx
+		offset[1] += idx
+		idx = offset[1]
+
+		// Check if we should continue
+		prev := str[prevIdx:offset[0]]
 		if proc != nil && !proc(prev, state) {
 			return "", nil, nil
 		}
-		newState := interpretCode(str[offset[0]:offset[1]], state)
 
+		prevIdx = offset[1]
+		runeCount += utf8.RuneCountInString(prev)
+		output.WriteString(prev)
+
+		newState := interpretCode(str[offset[0]:offset[1]], state)
 		if !newState.equals(state) {
 			if state != nil {
 				// Update last offset
-				(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
+				(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
 			}
 
 			if newState.colored() {
 				// Append new offset
 				state = newState
-				newLen := int32(utf8.RuneCount(output.Bytes()))
+				offsets = append(offsets, ansiOffset{[2]int32{int32(runeCount), int32(runeCount)}, *state})
-				offsets = append(offsets, ansiOffset{[2]int32{newLen, newLen}, *state})
 			} else {
 				// Discard state
 				state = nil
 			}
 		}
-
-		idx = offset[1]
 	}
 
-	rest := str[idx:]
+	var rest string
-	if len(rest) > 0 {
+	var trimmed string
+
+	if prevIdx == 0 {
+		// No ANSI code found
+		rest = str
+		trimmed = str
+	} else {
+		rest = str[prevIdx:]
 		output.WriteString(rest)
-		if state != nil {
+		trimmed = output.String()
-			// Update last offset
+	}
-			(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
+	if len(rest) > 0 && state != nil {
-		}
+		// Update last offset
+		runeCount += utf8.RuneCountInString(rest)
+		(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
 	}
 	if proc != nil {
 		proc(rest, state)
 	}
 	if len(offsets) == 0 {
-		return output.String(), nil, state
+		return trimmed, nil, state
 	}
-	return output.String(), &offsets, state
+	return trimmed, &offsets, state
 }
 
 func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
@@ -143,15 +232,17 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 				case 49:
 					state.bg = -1
 				case 1:
-					state.attr = tui.Bold
+					state.attr = state.attr | tui.Bold
 				case 2:
-					state.attr = tui.Dim
+					state.attr = state.attr | tui.Dim
+				case 3:
+					state.attr = state.attr | tui.Italic
 				case 4:
-					state.attr = tui.Underline
+					state.attr = state.attr | tui.Underline
 				case 5:
-					state.attr = tui.Blink
+					state.attr = state.attr | tui.Blink
 				case 7:
-					state.attr = tui.Reverse
+					state.attr = state.attr | tui.Reverse
 				case 0:
 					init()
 				default:
@@ -167,6 +258,8 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 				}
 			case 1:
 				switch num {
+				case 2:
+					state256 = 10 // MAGIC
 				case 5:
 					state256++
 				default:
@@ -175,8 +268,20 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 			case 2:
 				*ptr = tui.Color(num)
 				state256 = 0
+			case 10:
+				*ptr = tui.Color(1<<24) | tui.Color(num<<16)
+				state256++
+			case 11:
+				*ptr = *ptr | tui.Color(num<<8)
+				state256++
+			case 12:
+				*ptr = *ptr | tui.Color(num)
+				state256 = 0
 			}
 		}
 	}
+	if state256 > 0 {
+		*ptr = -1
+	}
 	return state
 }

src/ansi_test.go

@@ -2,6 +2,7 @@ package fzf
 
 import (
 	"fmt"
+	"strings"
 	"testing"
 
 	"github.com/junegunn/fzf/src/tui"
@@ -26,7 +27,7 @@ func TestExtractColor(t *testing.T) {
 		output, ansiOffsets, newState := extractColor(src, state, nil)
 		state = newState
 		if output != "hello world" {
-			t.Errorf("Invalid output: %s %s", output, []rune(output))
+			t.Errorf("Invalid output: %s %v", output, []rune(output))
 		}
 		fmt.Println(src, ansiOffsets, clean)
 		assertion(ansiOffsets, state)
@@ -156,3 +157,31 @@ func TestExtractColor(t *testing.T) {
 		assert((*offsets)[1], 6, 11, 200, 100, false)
 	})
 }
+
+func TestAnsiCodeStringConversion(t *testing.T) {
+	assert := func(code string, prevState *ansiState, expected string) {
+		state := interpretCode(code, prevState)
+		if expected != state.ToString() {
+			t.Errorf("expected: %s, actual: %s",
+				strings.Replace(expected, "\x1b[", "\\x1b[", -1),
+				strings.Replace(state.ToString(), "\x1b[", "\\x1b[", -1))
+		}
+	}
+	assert("\x1b[m", nil, "")
+	assert("\x1b[m", &ansiState{attr: tui.Blink}, "")
+
+	assert("\x1b[31m", nil, "\x1b[31;49m")
+	assert("\x1b[41m", nil, "\x1b[39;41m")
+
+	assert("\x1b[92m", nil, "\x1b[92;49m")
+	assert("\x1b[102m", nil, "\x1b[39;102m")
+
+	assert("\x1b[31m", &ansiState{fg: 4, bg: 4}, "\x1b[31;44m")
+	assert("\x1b[1;2;31m", &ansiState{fg: 2, bg: -1, attr: tui.Reverse}, "\x1b[1;2;7;31;49m")
+	assert("\x1b[38;5;100;48;5;200m", nil, "\x1b[38;5;100;48;5;200m")
+	assert("\x1b[48;5;100;38;5;200m", nil, "\x1b[38;5;200;48;5;100m")
+	assert("\x1b[48;5;100;38;2;10;20;30;1m", nil, "\x1b[1;38;2;10;20;30;48;5;100m")
+	assert("\x1b[48;5;100;38;2;10;20;30;7m",
+		&ansiState{attr: tui.Dim | tui.Italic, fg: 1, bg: 1},
+		"\x1b[2;3;7;38;2;10;20;30;48;5;100m")
+}

src/cache.go

@@ -3,7 +3,7 @@ package fzf
 import "sync"
 
 // queryCache associates strings to lists of items
-type queryCache map[string][]*Result
+type queryCache map[string][]Result
 
 // ChunkCache associates Chunk and query string to lists of items
 type ChunkCache struct {
@@ -17,7 +17,7 @@ func NewChunkCache() ChunkCache {
 }
 
 // Add adds the list to the cache
-func (cc *ChunkCache) Add(chunk *Chunk, key string, list []*Result) {
+func (cc *ChunkCache) Add(chunk *Chunk, key string, list []Result) {
 	if len(key) == 0 || !chunk.IsFull() || len(list) > queryCacheMax {
 		return
 	}
@@ -33,10 +33,10 @@ func (cc *ChunkCache) Add(chunk *Chunk, key string, list []*Result) {
 	(*qc)[key] = list
 }
 
-// Find is called to lookup ChunkCache
+// Lookup is called to lookup ChunkCache
-func (cc *ChunkCache) Find(chunk *Chunk, key string) ([]*Result, bool) {
+func (cc *ChunkCache) Lookup(chunk *Chunk, key string) []Result {
 	if len(key) == 0 || !chunk.IsFull() {
-		return nil, false
+		return nil
 	}
 
 	cc.mutex.Lock()
@@ -46,8 +46,36 @@ func (cc *ChunkCache) Find(chunk *Chunk, key string) ([]*Result, bool) {
 	if ok {
 		list, ok := (*qc)[key]
 		if ok {
-			return list, true
+			return list
 		}
 	}
-	return nil, false
+	return nil
+}
+
+func (cc *ChunkCache) Search(chunk *Chunk, key string) []Result {
+	if len(key) == 0 || !chunk.IsFull() {
+		return nil
+	}
+
+	cc.mutex.Lock()
+	defer cc.mutex.Unlock()
+
+	qc, ok := cc.cache[chunk]
+	if !ok {
+		return nil
+	}
+
+	for idx := 1; idx < len(key); idx++ {
+		// [---------| ] | [ |---------]
+		// [--------|  ] | [  |--------]
+		// [-------|   ] | [   |-------]
+		prefix := key[:len(key)-idx]
+		suffix := key[idx:]
+		for _, substr := range [2]string{prefix, suffix} {
+			if cached, found := (*qc)[substr]; found {
+				return cached
+			}
+		}
+	}
+	return nil
 }

src/cache_test.go

@@ -4,37 +4,36 @@ import "testing"
 
 func TestChunkCache(t *testing.T) {
 	cache := NewChunkCache()
-	chunk2 := make(Chunk, chunkSize)
 	chunk1p := &Chunk{}
-	chunk2p := &chunk2
+	chunk2p := &Chunk{count: chunkSize}
-	items1 := []*Result{&Result{}}
+	items1 := []Result{Result{}}
-	items2 := []*Result{&Result{}, &Result{}}
+	items2 := []Result{Result{}, Result{}}
 	cache.Add(chunk1p, "foo", items1)
 	cache.Add(chunk2p, "foo", items1)
 	cache.Add(chunk2p, "bar", items2)
 
 	{ // chunk1 is not full
-		cached, found := cache.Find(chunk1p, "foo")
+		cached := cache.Lookup(chunk1p, "foo")
-		if found {
+		if cached != nil {
-			t.Error("Cached disabled for non-empty chunks", found, cached)
+			t.Error("Cached disabled for non-empty chunks", cached)
 		}
 	}
 	{
-		cached, found := cache.Find(chunk2p, "foo")
+		cached := cache.Lookup(chunk2p, "foo")
-		if !found || len(cached) != 1 {
+		if cached == nil || len(cached) != 1 {
-			t.Error("Expected 1 item cached", found, cached)
+			t.Error("Expected 1 item cached", cached)
 		}
 	}
 	{
-		cached, found := cache.Find(chunk2p, "bar")
+		cached := cache.Lookup(chunk2p, "bar")
-		if !found || len(cached) != 2 {
+		if cached == nil || len(cached) != 2 {
-			t.Error("Expected 2 items cached", found, cached)
+			t.Error("Expected 2 items cached", cached)
 		}
 	}
 	{
-		cached, found := cache.Find(chunk1p, "foobar")
+		cached := cache.Lookup(chunk1p, "foobar")
-		if found {
+		if cached != nil {
-			t.Error("Expected 0 item cached", found, cached)
+			t.Error("Expected 0 item cached", cached)
 		}
 	}
 }

src/chunklist.go

@@ -2,17 +2,18 @@ package fzf
 
 import "sync"
 
-// Chunk is a list of Item pointers whose size has the upper limit of chunkSize
+// Chunk is a list of Items whose size has the upper limit of chunkSize
-type Chunk []*Item // >>> []Item
+type Chunk struct {
+	items [chunkSize]Item
+	count int
+}
 
-// ItemBuilder is a closure type that builds Item object from a pointer to a
+// ItemBuilder is a closure type that builds Item object from byte array
-// string and an integer
+type ItemBuilder func(*Item, []byte) bool
-type ItemBuilder func([]byte, int) *Item
 
 // ChunkList is a list of Chunks
 type ChunkList struct {
 	chunks []*Chunk
-	count  int
 	mutex  sync.Mutex
 	trans  ItemBuilder
 }
@@ -21,15 +22,13 @@ type ChunkList struct {
 func NewChunkList(trans ItemBuilder) *ChunkList {
 	return &ChunkList{
 		chunks: []*Chunk{},
-		count:  0,
 		mutex:  sync.Mutex{},
 		trans:  trans}
 }
 
-func (c *Chunk) push(trans ItemBuilder, data []byte, index int) bool {
+func (c *Chunk) push(trans ItemBuilder, data []byte) bool {
-	item := trans(data, index)
+	if trans(&c.items[c.count], data) {
-	if item != nil {
+		c.count++
-		*c = append(*c, item)
 		return true
 	}
 	return false
@@ -37,7 +36,7 @@ func (c *Chunk) push(trans ItemBuilder, data []byte, index int) bool {
 
 // IsFull returns true if the Chunk is full
 func (c *Chunk) IsFull() bool {
-	return len(*c) == chunkSize
+	return c.count == chunkSize
 }
 
 func (cl *ChunkList) lastChunk() *Chunk {
@@ -49,45 +48,42 @@ func CountItems(cs []*Chunk) int {
 	if len(cs) == 0 {
 		return 0
 	}
-	return chunkSize*(len(cs)-1) + len(*(cs[len(cs)-1]))
+	return chunkSize*(len(cs)-1) + cs[len(cs)-1].count
 }
 
 // Push adds the item to the list
 func (cl *ChunkList) Push(data []byte) bool {
 	cl.mutex.Lock()
-	defer cl.mutex.Unlock()
 
 	if len(cl.chunks) == 0 || cl.lastChunk().IsFull() {
-		newChunk := Chunk(make([]*Item, 0, chunkSize))
+		cl.chunks = append(cl.chunks, &Chunk{})
-		cl.chunks = append(cl.chunks, &newChunk)
 	}
 
-	if cl.lastChunk().push(cl.trans, data, cl.count) {
+	ret := cl.lastChunk().push(cl.trans, data)
-		cl.count++
+	cl.mutex.Unlock()
-		return true
+	return ret
-	}
+}
-	return false
+
+// Clear clears the data
+func (cl *ChunkList) Clear() {
+	cl.mutex.Lock()
+	cl.chunks = nil
+	cl.mutex.Unlock()
 }
 
 // Snapshot returns immutable snapshot of the ChunkList
 func (cl *ChunkList) Snapshot() ([]*Chunk, int) {
 	cl.mutex.Lock()
-	defer cl.mutex.Unlock()
 
 	ret := make([]*Chunk, len(cl.chunks))
 	copy(ret, cl.chunks)
 
 	// Duplicate the last chunk
 	if cnt := len(ret); cnt > 0 {
-		ret[cnt-1] = ret[cnt-1].dupe()
+		newChunk := *ret[cnt-1]
+		ret[cnt-1] = &newChunk
 	}
-	return ret, cl.count
-}
 
-func (c *Chunk) dupe() *Chunk {
+	cl.mutex.Unlock()
-	newChunk := make(Chunk, len(*c))
+	return ret, CountItems(ret)
-	for idx, ptr := range *c {
-		newChunk[idx] = ptr
-	}
-	return &newChunk
 }

src/chunklist_test.go

@@ -11,8 +11,9 @@ func TestChunkList(t *testing.T) {
 	// FIXME global
 	sortCriteria = []criterion{byScore, byLength}
 
-	cl := NewChunkList(func(s []byte, i int) *Item {
+	cl := NewChunkList(func(item *Item, s []byte) bool {
-		return &Item{text: util.ToChars(s), index: int32(i * 2)}
+		item.text = util.ToChars(s)
+		return true
 	})
 
 	// Snapshot
@@ -38,11 +39,11 @@ func TestChunkList(t *testing.T) {
 
 	// Check the content of the ChunkList
 	chunk1 := snapshot[0]
-	if len(*chunk1) != 2 {
+	if chunk1.count != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if (*chunk1)[0].text.ToString() != "hello" || (*chunk1)[0].index != 0 ||
+	if chunk1.items[0].text.ToString() != "hello" ||
-		(*chunk1)[1].text.ToString() != "world" || (*chunk1)[1].index != 2 {
+		chunk1.items[1].text.ToString() != "world" {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {
@@ -65,14 +66,14 @@ func TestChunkList(t *testing.T) {
 		!snapshot[1].IsFull() || snapshot[2].IsFull() || count != chunkSize*2+2 {
 		t.Error("Expected two full chunks and one more chunk")
 	}
-	if len(*snapshot[2]) != 2 {
+	if snapshot[2].count != 2 {
 		t.Error("Unexpected number of items")
 	}
 
 	cl.Push([]byte("hello"))
 	cl.Push([]byte("world"))
 
-	lastChunkCount := len(*snapshot[len(snapshot)-1])
+	lastChunkCount := snapshot[len(snapshot)-1].count
 	if lastChunkCount != 2 {
 		t.Error("Unexpected number of items:", lastChunkCount)
 	}

src/constants.go

@@ -1,6 +1,8 @@
 package fzf
 
 import (
+	"math"
+	"os"
 	"time"
 
 	"github.com/junegunn/fzf/src/util"
@@ -8,20 +10,25 @@ import (
 
 const (
 	// Current version
-	version = "0.15.8"
+	version = "0.20.0"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
 	coordinatorDelayStep time.Duration = 10 * time.Millisecond
 
 	// Reader
-	readerBufferSize = 64 * 1024
+	readerBufferSize       = 64 * 1024
+	readerPollIntervalMin  = 10 * time.Millisecond
+	readerPollIntervalStep = 5 * time.Millisecond
+	readerPollIntervalMax  = 50 * time.Millisecond
 
 	// Terminal
-	initialDelay     = 20 * time.Millisecond
+	initialDelay      = 20 * time.Millisecond
-	initialDelayTac  = 100 * time.Millisecond
+	initialDelayTac   = 100 * time.Millisecond
-	spinnerDuration  = 200 * time.Millisecond
+	spinnerDuration   = 200 * time.Millisecond
-	maxPatternLength = 100
+	previewCancelWait = 500 * time.Millisecond
+	maxPatternLength  = 300
+	maxMulti          = math.MaxInt32
 
 	// Matcher
 	numPartitionsMultiplier = 8
@@ -48,6 +55,18 @@ const (
 	defaultJumpLabels string = "asdfghjklqwertyuiopzxcvbnm1234567890ASDFGHJKLQWERTYUIOPZXCVBNM`~;:,<.>/?'\"!@#$%^&*()[{]}-_=+"
 )
 
+var defaultCommand string
+
+func init() {
+	if !util.IsWindows() {
+		defaultCommand = `set -o pipefail; command find -L . -mindepth 1 \( -path '*/\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \) -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-`
+	} else if os.Getenv("TERM") == "cygwin" {
+		defaultCommand = `sh -c "command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-"`
+	} else {
+		defaultCommand = `for /r %P in (*) do @(set "_curfile=%P" & set "_curfile=!_curfile:%__CD__%=!" & echo !_curfile!)`
+	}
+}
+
 // fzf events
 const (
 	EvtReadNew util.EventType = iota
@@ -56,10 +75,11 @@ const (
 	EvtSearchProgress
 	EvtSearchFin
 	EvtHeader
-	EvtClose
+	EvtReady
 )
 
 const (
+	exitCancel    = -1
 	exitOk        = 0
 	exitNoMatch   = 1
 	exitError     = 2

src/constants_unix.go

@@ -1,8 +0,0 @@
-// +build !windows
-
-package fzf
-
-const (
-	// Reader
-	defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
-)

src/constants_windows.go

@@ -1,8 +0,0 @@
-// +build windows
-
-package fzf
-
-const (
-	// Reader
-	defaultCommand = `dir /s/b`
-)

src/core.go

@@ -3,7 +3,7 @@ Package fzf implements fzf, a command-line fuzzy finder.
 
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2017 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -43,12 +43,16 @@ Matcher  -> EvtHeader         -> Terminal (update header)
 */
 
 // Run starts fzf
-func Run(opts *Options) {
+func Run(opts *Options, revision string) {
 	sort := opts.Sort > 0
 	sortCriteria = opts.Criteria
 
 	if opts.Version {
-		fmt.Println(version)
+		if len(revision) > 0 {
+			fmt.Printf("%s (%s)\n", version, revision)
+		} else {
+			fmt.Println(version)
+		}
 		os.Exit(exitOk)
 	}
 
@@ -59,74 +63,84 @@ func Run(opts *Options) {
 	ansiProcessor := func(data []byte) (util.Chars, *[]ansiOffset) {
 		return util.ToChars(data), nil
 	}
-	ansiProcessorRunes := func(data []rune) (util.Chars, *[]ansiOffset) {
+
-		return util.RunesToChars(data), nil
+	var lineAnsiState, prevLineAnsiState *ansiState
-	}
 	if opts.Ansi {
 		if opts.Theme != nil {
-			var state *ansiState
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
-				trimmed, offsets, newState := extractColor(string(data), state, nil)
+				prevLineAnsiState = lineAnsiState
-				state = newState
+				trimmed, offsets, newState := extractColor(string(data), lineAnsiState, nil)
-				return util.RunesToChars([]rune(trimmed)), offsets
+				lineAnsiState = newState
+				return util.ToChars([]byte(trimmed)), offsets
 			}
 		} else {
 			// When color is disabled but ansi option is given,
 			// we simply strip out ANSI codes from the input
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
 				trimmed, _, _ := extractColor(string(data), nil, nil)
-				return util.RunesToChars([]rune(trimmed)), nil
+				return util.ToChars([]byte(trimmed)), nil
 			}
 		}
-		ansiProcessorRunes = func(data []rune) (util.Chars, *[]ansiOffset) {
-			return ansiProcessor([]byte(string(data)))
-		}
 	}
 
 	// Chunk list
 	var chunkList *ChunkList
+	var itemIndex int32
 	header := make([]string, 0, opts.HeaderLines)
 	if len(opts.WithNth) == 0 {
-		chunkList = NewChunkList(func(data []byte, index int) *Item {
+		chunkList = NewChunkList(func(item *Item, data []byte) bool {
 			if len(header) < opts.HeaderLines {
 				header = append(header, string(data))
 				eventBox.Set(EvtHeader, header)
-				return nil
+				return false
 			}
-			chars, colors := ansiProcessor(data)
+			item.text, item.colors = ansiProcessor(data)
-			return &Item{
+			item.text.Index = itemIndex
-				index:  int32(index),
+			itemIndex++
-				text:   chars,
+			return true
-				colors: colors}
 		})
 	} else {
-		chunkList = NewChunkList(func(data []byte, index int) *Item {
+		chunkList = NewChunkList(func(item *Item, data []byte) bool {
-			tokens := Tokenize(util.ToChars(data), opts.Delimiter)
+			tokens := Tokenize(string(data), opts.Delimiter)
-			trans := Transform(tokens, opts.WithNth)
+			if opts.Ansi && opts.Theme != nil && len(tokens) > 1 {
-			if len(header) < opts.HeaderLines {
+				var ansiState *ansiState
-				header = append(header, string(joinTokens(trans)))
+				if prevLineAnsiState != nil {
-				eventBox.Set(EvtHeader, header)
+					ansiStateDup := *prevLineAnsiState
-				return nil
+					ansiState = &ansiStateDup
+				}
+				for _, token := range tokens {
+					prevAnsiState := ansiState
+					_, _, ansiState = extractColor(token.text.ToString(), ansiState, nil)
+					if prevAnsiState != nil {
+						token.text.Prepend("\x1b[m" + prevAnsiState.ToString())
+					} else {
+						token.text.Prepend("\x1b[m")
+					}
+				}
 			}
-			textRunes := joinTokens(trans)
+			trans := Transform(tokens, opts.WithNth)
-			item := Item{
+			transformed := joinTokens(trans)
-				index:    int32(index),
+			if len(header) < opts.HeaderLines {
-				origText: &data,
+				header = append(header, transformed)
-				colors:   nil}
+				eventBox.Set(EvtHeader, header)
-
+				return false
-			trimmed, colors := ansiProcessorRunes(textRunes)
+			}
-			item.text = trimmed
+			item.text, item.colors = ansiProcessor([]byte(transformed))
-			item.colors = colors
+			item.text.TrimTrailingWhitespaces()
-			return &item
+			item.text.Index = itemIndex
+			item.origText = &data
+			itemIndex++
+			return true
 		})
 	}
 
 	// Reader
 	streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
+	var reader *Reader
 	if !streamingFilter {
-		reader := Reader{func(data []byte) bool {
+		reader = NewReader(func(data []byte) bool {
 			return chunkList.Push(data)
-		}, eventBox, opts.ReadZero}
+		}, eventBox, opts.ReadZero, opts.Filter == nil)
 		go reader.ReadSource()
 	}
 
@@ -143,7 +157,7 @@ func Run(opts *Options) {
 	}
 	patternBuilder := func(runes []rune) *Pattern {
 		return BuildPattern(
-			opts.Fuzzy, opts.FuzzyAlgo, opts.Extended, opts.Case, forward,
+			opts.Fuzzy, opts.FuzzyAlgo, opts.Extended, opts.Case, opts.Normalize, forward,
 			opts.Filter == nil, opts.Nth, opts.Delimiter, runes)
 	}
 	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
@@ -155,21 +169,22 @@ func Run(opts *Options) {
 		}
 
 		pattern := patternBuilder([]rune(*opts.Filter))
+		matcher.sort = pattern.sortable
 
 		found := false
 		if streamingFilter {
 			slab := util.MakeSlab(slab16Size, slab32Size)
-			reader := Reader{
+			reader := NewReader(
 				func(runes []byte) bool {
-					item := chunkList.trans(runes, 0)
+					item := Item{}
-					if item != nil {
+					if chunkList.trans(&item, runes) {
-						if result, _, _ := pattern.MatchItem(item, false, slab); result != nil {
+						if result, _, _ := pattern.MatchItem(&item, false, slab); result != nil {
 							opts.Printer(item.text.ToString())
 							found = true
 						}
 					}
 					return false
-				}, eventBox, opts.ReadZero}
+				}, eventBox, opts.ReadZero, false)
 			reader.ReadSource()
 		} else {
 			eventBox.Unwatch(EvtReadNew)
@@ -209,29 +224,69 @@ func Run(opts *Options) {
 
 	// Event coordination
 	reading := true
+	clearCache := util.Once(false)
+	clearSelection := util.Once(false)
 	ticks := 0
+	var nextCommand *string
+	restart := func(command string) {
+		reading = true
+		clearCache = util.Once(true)
+		clearSelection = util.Once(true)
+		chunkList.Clear()
+		header = make([]string, 0, opts.HeaderLines)
+		go reader.restart(command)
+	}
 	eventBox.Watch(EvtReadNew)
 	for {
 		delay := true
 		ticks++
+		input := func() []rune {
+			if opts.Phony {
+				return []rune{}
+			}
+			return []rune(terminal.Input())
+		}
 		eventBox.Wait(func(events *util.Events) {
-			defer events.Clear()
+			if _, fin := (*events)[EvtReadFin]; fin {
+				delete(*events, EvtReadNew)
+			}
 			for evt, value := range *events {
 				switch evt {
 
 				case EvtReadNew, EvtReadFin:
-					reading = reading && evt == EvtReadNew
+					if evt == EvtReadFin && nextCommand != nil {
+						restart(*nextCommand)
+						nextCommand = nil
+						break
+					} else {
+						reading = reading && evt == EvtReadNew
+					}
 					snapshot, count := chunkList.Snapshot()
-					terminal.UpdateCount(count, !reading)
+					terminal.UpdateCount(count, !reading, value.(*string))
-					matcher.Reset(snapshot, terminal.Input(), false, !reading, sort)
+					if opts.Sync {
+						opts.Sync = false
+						terminal.UpdateList(PassMerger(&snapshot, opts.Tac), false)
+					}
+					matcher.Reset(snapshot, input(), false, !reading, sort, clearCache())
 
 				case EvtSearchNew:
+					var command *string
 					switch val := value.(type) {
-					case bool:
+					case searchRequest:
-						sort = val
+						sort = val.sort
+						command = val.command
+					}
+					if command != nil {
+						if reading {
+							reader.terminate()
+							nextCommand = command
+						} else {
+							restart(*command)
+						}
+						break
 					}
 					snapshot, _ := chunkList.Snapshot()
-					matcher.Reset(snapshot, terminal.Input(), true, !reading, sort)
+					matcher.Reset(snapshot, input(), true, !reading, sort, clearCache())
 					delay = false
 
 				case EvtSearchProgress:
@@ -241,7 +296,9 @@ func Run(opts *Options) {
 					}
 
 				case EvtHeader:
-					terminal.UpdateHeader(value.([]string))
+					headerPadded := make([]string, opts.HeaderLines)
+					copy(headerPadded, value.([]string))
+					terminal.UpdateHeader(headerPadded)
 
 				case EvtSearchFin:
 					switch val := value.(type) {
@@ -271,10 +328,11 @@ func Run(opts *Options) {
 								terminal.startChan <- true
 							}
 						}
-						terminal.UpdateList(val)
+						terminal.UpdateList(val, clearSelection())
 					}
 				}
 			}
+			events.Clear()
 		})
 		if delay && reading {
 			dur := util.DurWithin(

src/history.go

@@ -59,7 +59,7 @@ func (h *History) append(line string) error {
 
 	lines := append(h.lines[:len(h.lines)-1], line)
 	if len(lines) > h.maxSize {
-		lines = lines[len(lines)-h.maxSize : len(lines)]
+		lines = lines[len(lines)-h.maxSize:]
 	}
 	h.lines = append(lines, "")
 	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)

src/item.go

@@ -4,18 +4,23 @@ import (
 	"github.com/junegunn/fzf/src/util"
 )
 
-// Item represents each input line
+// Item represents each input line. 56 bytes.
 type Item struct {
-	index       int32
+	text        util.Chars    // 32 = 24 + 1 + 1 + 2 + 4
-	text        util.Chars
+	transformed *[]Token      // 8
-	origText    *[]byte
+	origText    *[]byte       // 8
-	colors      *[]ansiOffset
+	colors      *[]ansiOffset // 8
-	transformed []Token
 }
 
 // Index returns ordinal index of the Item
 func (item *Item) Index() int32 {
-	return item.index
+	return item.text.Index
+}
+
+var minItem = Item{text: util.Chars{Index: -1}}
+
+func (item *Item) TrimLength() uint16 {
+	return item.text.TrimLength()
 }
 
 // Colors returns ansiOffsets of the Item

src/matcher.go

@@ -12,10 +12,11 @@ import (
 
 // MatchRequest represents a search request
 type MatchRequest struct {
-	chunks  []*Chunk
+	chunks     []*Chunk
-	pattern *Pattern
+	pattern    *Pattern
-	final   bool
+	final      bool
-	sort    bool
+	sort       bool
+	clearCache bool
 }
 
 // Matcher is responsible for performing search
@@ -69,7 +70,7 @@ func (m *Matcher) Loop() {
 			events.Clear()
 		})
 
-		if request.sort != m.sort {
+		if request.sort != m.sort || request.clearCache {
 			m.sort = request.sort
 			m.mergerCache = make(map[string]*Merger)
 			clearChunkCache()
@@ -131,7 +132,7 @@ func (m *Matcher) sliceChunks(chunks []*Chunk) [][]*Chunk {
 
 type partialResult struct {
 	index   int
-	matches []*Result
+	matches []Result
 }
 
 func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
@@ -162,7 +163,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 		go func(idx int, slab *util.Slab, chunks []*Chunk) {
 			defer func() { waitGroup.Done() }()
 			count := 0
-			allMatches := make([][]*Result, len(chunks))
+			allMatches := make([][]Result, len(chunks))
 			for idx, chunk := range chunks {
 				matches := request.pattern.Match(chunk, slab)
 				allMatches[idx] = matches
@@ -172,7 +173,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 				}
 				countChan <- len(matches)
 			}
-			sliceMatches := make([]*Result, 0, count)
+			sliceMatches := make([]Result, 0, count)
 			for _, matches := range allMatches {
 				sliceMatches = append(sliceMatches, matches...)
 			}
@@ -207,13 +208,13 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 			return nil, wait()
 		}
 
-		if time.Now().Sub(startedAt) > progressMinDuration {
+		if time.Since(startedAt) > progressMinDuration {
 			m.eventBox.Set(EvtSearchProgress, float32(count)/float32(numChunks))
 		}
 	}
 
-	partialResults := make([][]*Result, numSlices)
+	partialResults := make([][]Result, numSlices)
-	for _ = range slices {
+	for range slices {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}
@@ -221,7 +222,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 }
 
 // Reset is called to interrupt/signal the ongoing search
-func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool) {
+func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool, clearCache bool) {
 	pattern := m.patternBuilder(patternRunes)
 
 	var event util.EventType
@@ -230,5 +231,5 @@ func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final
 	} else {
 		event = reqRetry
 	}
-	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort})
+	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort && pattern.sortable, clearCache})
 }

src/merger.go

@@ -3,14 +3,14 @@ package fzf
 import "fmt"
 
 // EmptyMerger is a Merger with no data
-var EmptyMerger = NewMerger(nil, [][]*Result{}, false, false)
+var EmptyMerger = NewMerger(nil, [][]Result{}, false, false)
 
 // Merger holds a set of locally sorted lists of items and provides the view of
 // a single, globally-sorted list
 type Merger struct {
 	pattern *Pattern
-	lists   [][]*Result
+	lists   [][]Result
-	merged  []*Result
+	merged  []Result
 	chunks  *[]*Chunk
 	cursors []int
 	sorted  bool
@@ -29,17 +29,17 @@ func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
 		count:   0}
 
 	for _, chunk := range *mg.chunks {
-		mg.count += len(*chunk)
+		mg.count += chunk.count
 	}
 	return &mg
 }
 
 // NewMerger returns a new Merger
-func NewMerger(pattern *Pattern, lists [][]*Result, sorted bool, tac bool) *Merger {
+func NewMerger(pattern *Pattern, lists [][]Result, sorted bool, tac bool) *Merger {
 	mg := Merger{
 		pattern: pattern,
 		lists:   lists,
-		merged:  []*Result{},
+		merged:  []Result{},
 		chunks:  nil,
 		cursors: make([]int, len(lists)),
 		sorted:  sorted,
@@ -59,13 +59,13 @@ func (mg *Merger) Length() int {
 }
 
 // Get returns the pointer to the Result object indexed by the given integer
-func (mg *Merger) Get(idx int) *Result {
+func (mg *Merger) Get(idx int) Result {
 	if mg.chunks != nil {
 		if mg.tac {
 			idx = mg.count - idx - 1
 		}
 		chunk := (*mg.chunks)[idx/chunkSize]
-		return &Result{item: (*chunk)[idx%chunkSize]}
+		return Result{item: &chunk.items[idx%chunkSize]}
 	}
 
 	if mg.sorted {
@@ -89,7 +89,7 @@ func (mg *Merger) cacheable() bool {
 	return mg.count < mergerCacheMax
 }
 
-func (mg *Merger) mergedGet(idx int) *Result {
+func (mg *Merger) mergedGet(idx int) Result {
 	for i := len(mg.merged); i <= idx; i++ {
 		minRank := minRank()
 		minIdx := -1
@@ -100,7 +100,7 @@ func (mg *Merger) mergedGet(idx int) *Result {
 				continue
 			}
 			if cursor >= 0 {
-				rank := list[cursor].rank
+				rank := list[cursor]
 				if minIdx < 0 || compareRanks(rank, minRank, mg.tac) {
 					minRank = rank
 					minIdx = listIdx

src/merger_test.go

@@ -15,11 +15,11 @@ func assert(t *testing.T, cond bool, msg ...string) {
 	}
 }
 
-func randResult() *Result {
+func randResult() Result {
 	str := fmt.Sprintf("%d", rand.Uint32())
-	return &Result{
+	chars := util.ToChars([]byte(str))
-		item: &Item{text: util.RunesToChars([]rune(str))},
+	chars.Index = rand.Int31()
-		rank: rank{index: rand.Int31()}}
+	return Result{item: &Item{text: chars}}
 }
 
 func TestEmptyMerger(t *testing.T) {
@@ -29,14 +29,14 @@ func TestEmptyMerger(t *testing.T) {
 	assert(t, len(EmptyMerger.merged) == 0, "Invalid merged list")
 }
 
-func buildLists(partiallySorted bool) ([][]*Result, []*Result) {
+func buildLists(partiallySorted bool) ([][]Result, []Result) {
 	numLists := 4
-	lists := make([][]*Result, numLists)
+	lists := make([][]Result, numLists)
 	cnt := 0
 	for i := 0; i < numLists; i++ {
 		numResults := rand.Int() % 20
 		cnt += numResults
-		lists[i] = make([]*Result, numResults)
+		lists[i] = make([]Result, numResults)
 		for j := 0; j < numResults; j++ {
 			item := randResult()
 			lists[i][j] = item
@@ -45,7 +45,7 @@ func buildLists(partiallySorted bool) ([][]*Result, []*Result) {
 			sort.Sort(ByRelevance(lists[i]))
 		}
 	}
-	items := []*Result{}
+	items := []Result{}
 	for _, list := range lists {
 		items = append(items, list...)
 	}

src/options_test.go

@@ -6,7 +6,6 @@ import (
 	"testing"
 
 	"github.com/junegunn/fzf/src/tui"
-	"github.com/junegunn/fzf/src/util"
 )
 
 func TestDelimiterRegex(t *testing.T) {
@@ -44,20 +43,20 @@ func TestDelimiterRegex(t *testing.T) {
 
 func TestDelimiterRegexString(t *testing.T) {
 	delim := delimiterRegexp("*")
-	tokens := Tokenize(util.RunesToChars([]rune("-*--*---**---")), delim)
+	tokens := Tokenize("-*--*---**---", delim)
 	if delim.regex != nil ||
 		tokens[0].text.ToString() != "-*" ||
 		tokens[1].text.ToString() != "--*" ||
 		tokens[2].text.ToString() != "---*" ||
 		tokens[3].text.ToString() != "*" ||
 		tokens[4].text.ToString() != "---" {
-		t.Errorf("%s %s %d", delim, tokens, len(tokens))
+		t.Errorf("%s %v %d", delim, tokens, len(tokens))
 	}
 }
 
 func TestDelimiterRegexRegex(t *testing.T) {
 	delim := delimiterRegexp("--\\*")
-	tokens := Tokenize(util.RunesToChars([]rune("-*--*---**---")), delim)
+	tokens := Tokenize("-*--*---**---", delim)
 	if delim.str != nil ||
 		tokens[0].text.ToString() != "-*--*" ||
 		tokens[1].text.ToString() != "---*" ||
@@ -72,7 +71,7 @@ func TestSplitNth(t *testing.T) {
 		if len(ranges) != 1 ||
 			ranges[0].begin != rangeEllipsis ||
 			ranges[0].end != rangeEllipsis {
-			t.Errorf("%s", ranges)
+			t.Errorf("%v", ranges)
 		}
 	}
 	{
@@ -88,7 +87,7 @@ func TestSplitNth(t *testing.T) {
 			ranges[7].begin != -2 || ranges[7].end != -2 ||
 			ranges[8].begin != 2 || ranges[8].end != -2 ||
 			ranges[9].begin != rangeEllipsis || ranges[9].end != rangeEllipsis {
-			t.Errorf("%s", ranges)
+			t.Errorf("%v", ranges)
 		}
 	}
 }
@@ -100,7 +99,7 @@ func TestIrrelevantNth(t *testing.T) {
 		parseOptions(opts, words)
 		postProcessOptions(opts)
 		if len(opts.Nth) != 0 {
-			t.Errorf("nth should be empty: %s", opts.Nth)
+			t.Errorf("nth should be empty: %v", opts.Nth)
 		}
 	}
 	for _, words := range [][]string{[]string{"--nth", "..,3", "+x"}, []string{"--nth", "3,1..", "+x"}, []string{"--nth", "..-1,1", "+x"}} {
@@ -109,7 +108,7 @@ func TestIrrelevantNth(t *testing.T) {
 			parseOptions(opts, words)
 			postProcessOptions(opts)
 			if len(opts.Nth) != 0 {
-				t.Errorf("nth should be empty: %s", opts.Nth)
+				t.Errorf("nth should be empty: %v", opts.Nth)
 			}
 		}
 		{
@@ -118,21 +117,21 @@ func TestIrrelevantNth(t *testing.T) {
 			parseOptions(opts, words)
 			postProcessOptions(opts)
 			if len(opts.Nth) != 2 {
-				t.Errorf("nth should not be empty: %s", opts.Nth)
+				t.Errorf("nth should not be empty: %v", opts.Nth)
 			}
 		}
 	}
 }
 
 func TestParseKeys(t *testing.T) {
-	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g,ALT-enter,alt-SPACE", "")
+	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g,ctrl-alt-a,ALT-enter,alt-SPACE", "")
 	check := func(i int, s string) {
 		if pairs[i] != s {
 			t.Errorf("%s != %s", pairs[i], s)
 		}
 	}
-	if len(pairs) != 11 {
+	if len(pairs) != 12 {
-		t.Error(11)
+		t.Error(12)
 	}
 	check(tui.CtrlZ, "ctrl-z")
 	check(tui.AltZ, "alt-z")
@@ -143,7 +142,8 @@ func TestParseKeys(t *testing.T) {
 	check(tui.CtrlA+'g'-'a', "ctrl-G")
 	check(tui.AltZ+'J', "J")
 	check(tui.AltZ+'g', "g")
-	check(tui.AltEnter, "ALT-enter")
+	check(tui.CtrlAltA, "ctrl-alt-a")
+	check(tui.CtrlAltM, "ALT-enter")
 	check(tui.AltSpace, "alt-SPACE")
 
 	// Synonyms
@@ -225,49 +225,52 @@ func TestParseKeysWithComma(t *testing.T) {
 }
 
 func TestBind(t *testing.T) {
-	check := func(action actionType, expected actionType) {
-		if action != expected {
-			t.Errorf("%d != %d", action, expected)
-		}
-	}
-	checkString := func(action string, expected string) {
-		if action != expected {
-			t.Errorf("%d != %d", action, expected)
-		}
-	}
 	keymap := defaultKeymap()
-	execmap := make(map[int]string)
+	check := func(keyName int, arg1 string, types ...actionType) {
-	check(actBeginningOfLine, keymap[tui.CtrlA])
+		if len(keymap[keyName]) != len(types) {
-	parseKeymap(keymap, execmap,
+			t.Errorf("invalid number of actions (%d != %d)", len(types), len(keymap[keyName]))
-		"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down,"+
+			return
-			"f1:execute(ls {}),f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
+		}
-			"alt-a:execute@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};"+
+		for idx, action := range keymap[keyName] {
-			",,:abort,::accept,X:execute:\nfoobar,Y:execute(baz)")
+			if types[idx] != action.t {
-	check(actKillLine, keymap[tui.CtrlA])
+				t.Errorf("invalid action type (%d != %d)", types[idx], action.t)
-	check(actToggleSort, keymap[tui.CtrlB])
+			}
-	check(actPageUp, keymap[tui.AltZ+'c'])
+		}
-	check(actAbort, keymap[tui.AltZ+','])
+		if len(arg1) > 0 && keymap[keyName][0].a != arg1 {
-	check(actAccept, keymap[tui.AltZ+':'])
+			t.Errorf("invalid action argument: (%s != %s)", arg1, keymap[keyName][0].a)
-	check(actPageDown, keymap[tui.AltZ])
+		}
-	check(actExecute, keymap[tui.F1])
+	}
-	check(actExecute, keymap[tui.F2])
+	check(tui.CtrlA, "", actBeginningOfLine)
-	check(actExecute, keymap[tui.F3])
+	parseKeymap(keymap,
-	check(actExecute, keymap[tui.F4])
+		"ctrl-a:kill-line,ctrl-b:toggle-sort+up+down,c:page-up,alt-z:page-down,"+
-	checkString("ls {}", execmap[tui.F1])
+			"f1:execute(ls {+})+abort+execute(echo {+})+select-all,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
-	checkString("echo {}, {}, {}", execmap[tui.F2])
+			"alt-a:execute-Multi@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};,"+
-	checkString("echo '({})'", execmap[tui.F3])
+			"x:Execute(foo+bar),X:execute/bar+baz/"+
-	checkString("less {}", execmap[tui.F4])
+			",f1:+top,f1:+top"+
-	checkString("echo (,),[,],/,:,;,%,{}", execmap[tui.AltA])
+			",,:abort,::accept,+:execute:++\nfoobar,Y:execute(baz)+up")
-	checkString("echo (,),[,],/,:,@,%,{}", execmap[tui.AltB])
+	check(tui.CtrlA, "", actKillLine)
-	checkString("\nfoobar,Y:execute(baz)", execmap[tui.AltZ+'X'])
+	check(tui.CtrlB, "", actToggleSort, actUp, actDown)
+	check(tui.AltZ+'c', "", actPageUp)
+	check(tui.AltZ+',', "", actAbort)
+	check(tui.AltZ+':', "", actAccept)
+	check(tui.AltZ, "", actPageDown)
+	check(tui.F1, "ls {+}", actExecute, actAbort, actExecute, actSelectAll, actTop, actTop)
+	check(tui.F2, "echo {}, {}, {}", actExecute)
+	check(tui.F3, "echo '({})'", actExecute)
+	check(tui.F4, "less {}", actExecute)
+	check(tui.AltZ+'x', "foo+bar", actExecute)
+	check(tui.AltZ+'X', "bar+baz", actExecute)
+	check(tui.AltA, "echo (,),[,],/,:,;,%,{}", actExecuteMulti)
+	check(tui.AltB, "echo (,),[,],/,:,@,%,{}", actExecute)
+	check(tui.AltZ+'+', "++\nfoobar,Y:execute(baz)+up", actExecute)
 
 	for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
-		parseKeymap(keymap, execmap, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
+		parseKeymap(keymap, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
-		checkString("foobar", execmap[tui.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0])])
+		check(tui.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0]), "foobar", actExecute)
 	}
 
-	parseKeymap(keymap, execmap, "f1:abort")
+	parseKeymap(keymap, "f1:abort")
-	check(actAbort, keymap[tui.F1])
+	check(tui.F1, "", actAbort)
 }
 
 func TestColorSpec(t *testing.T) {
@@ -327,7 +330,7 @@ func TestDefaultCtrlNP(t *testing.T) {
 		opts := defaultOptions()
 		parseOptions(opts, words)
 		postProcessOptions(opts)
-		if opts.Keymap[key] != expected {
+		if opts.Keymap[key][0].t != expected {
 			t.Error()
 		}
 	}
@@ -378,26 +381,44 @@ func TestPreviewOpts(t *testing.T) {
 	opts := optsFor()
 	if !(opts.Preview.command == "" &&
 		opts.Preview.hidden == false &&
+		opts.Preview.wrap == false &&
 		opts.Preview.position == posRight &&
 		opts.Preview.size.percent == true &&
 		opts.Preview.size.size == 50) {
 		t.Error()
 	}
-	opts = optsFor("--preview", "cat {}", "--preview-window=left:15:hidden")
+	opts = optsFor("--preview", "cat {}", "--preview-window=left:15:hidden:wrap")
 	if !(opts.Preview.command == "cat {}" &&
 		opts.Preview.hidden == true &&
+		opts.Preview.wrap == true &&
 		opts.Preview.position == posLeft &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2) {
+		opts.Preview.size.size == 15+2+2) {
 		t.Error(opts.Preview)
 	}
-
+	opts = optsFor("--preview-window=up:15:wrap:hidden", "--preview-window=down")
-	opts = optsFor("--preview-window=left:15:hidden", "--preview-window=down")
 	if !(opts.Preview.command == "" &&
 		opts.Preview.hidden == false &&
+		opts.Preview.wrap == false &&
 		opts.Preview.position == posDown &&
 		opts.Preview.size.percent == true &&
 		opts.Preview.size.size == 50) {
 		t.Error(opts.Preview)
 	}
+	opts = optsFor("--preview-window=up:15:wrap:hidden")
+	if !(opts.Preview.command == "" &&
+		opts.Preview.hidden == true &&
+		opts.Preview.wrap == true &&
+		opts.Preview.position == posUp &&
+		opts.Preview.size.percent == false &&
+		opts.Preview.size.size == 15+2) {
+		t.Error(opts.Preview)
+	}
+}
+
+func TestAdditiveExpect(t *testing.T) {
+	opts := optsFor("--expect=a", "--expect", "b", "--expect=c")
+	if len(opts.Expect) != 3 {
+		t.Error(opts.Expect)
+	}
 }

src/pattern.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"fmt"
 	"regexp"
 	"strings"
 
@@ -10,12 +11,12 @@ import (
 
 // fuzzy
 // 'exact
-// ^exact-prefix
+// ^prefix-exact
-// exact-suffix$
+// suffix-exact$
-// !not-fuzzy
+// !inverse-exact
-// !'not-exact
+// !'inverse-fuzzy
-// !^not-exact-prefix
+// !^inverse-prefix-exact
-// !not-exact-suffix$
+// !inverse-suffix-exact$
 
 type termType int
 
@@ -32,7 +33,11 @@ type term struct {
 	inv           bool
 	text          []rune
 	caseSensitive bool
-	origText      []rune
+}
+
+// String returns the string representation of a term.
+func (t term) String() string {
+	return fmt.Sprintf("term{typ: %d, inv: %v, text: []rune(%q), caseSensitive: %v}", t.typ, t.inv, string(t.text), t.caseSensitive)
 }
 
 type termSet []term
@@ -43,10 +48,13 @@ type Pattern struct {
 	fuzzyAlgo     algo.Algo
 	extended      bool
 	caseSensitive bool
+	normalize     bool
 	forward       bool
 	text          []rune
 	termSets      []termSet
+	sortable      bool
 	cacheable     bool
+	cacheKey      string
 	delimiter     Delimiter
 	nth           []Range
 	procFun       map[termType]algo.Algo
@@ -59,7 +67,7 @@ var (
 )
 
 func init() {
-	_splitRegex = regexp.MustCompile("\\s+")
+	_splitRegex = regexp.MustCompile(" +")
 	clearPatternCache()
 	clearChunkCache()
 }
@@ -75,12 +83,15 @@ func clearChunkCache() {
 }
 
 // BuildPattern builds Pattern object from the given arguments
-func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case, forward bool,
+func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case, normalize bool, forward bool,
 	cacheable bool, nth []Range, delimiter Delimiter, runes []rune) *Pattern {
 
 	var asString string
 	if extended {
-		asString = strings.Trim(string(runes), " ")
+		asString = strings.TrimLeft(string(runes), " ")
+		for strings.HasSuffix(asString, " ") && !strings.HasSuffix(asString, "\\ ") {
+			asString = asString[:len(asString)-1]
+		}
 	} else {
 		asString = string(runes)
 	}
@@ -91,18 +102,27 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 	}
 
 	caseSensitive := true
+	sortable := true
 	termSets := []termSet{}
 
 	if extended {
-		termSets = parseTerms(fuzzy, caseMode, asString)
+		termSets = parseTerms(fuzzy, caseMode, normalize, asString)
+		// We should not sort the result if there are only inverse search terms
+		sortable = false
 	Loop:
 		for _, termSet := range termSets {
 			for idx, term := range termSet {
+				if !term.inv {
+					sortable = true
+				}
 				// If the query contains inverse search terms or OR operators,
 				// we cannot cache the search scope
-				if !cacheable || idx > 0 || term.inv {
+				if !cacheable || idx > 0 || term.inv || fuzzy && term.typ != termFuzzy || !fuzzy && term.typ != termExact {
 					cacheable = false
-					break Loop
+					if sortable {
+						// Can't break until we see at least one non-inverse term
+						break Loop
+					}
 				}
 			}
 		}
@@ -120,14 +140,17 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 		fuzzyAlgo:     fuzzyAlgo,
 		extended:      extended,
 		caseSensitive: caseSensitive,
+		normalize:     normalize,
 		forward:       forward,
 		text:          []rune(asString),
 		termSets:      termSets,
+		sortable:      sortable,
 		cacheable:     cacheable,
 		nth:           nth,
 		delimiter:     delimiter,
 		procFun:       make(map[termType]algo.Algo)}
 
+	ptr.cacheKey = ptr.buildCacheKey()
 	ptr.procFun[termFuzzy] = fuzzyAlgo
 	ptr.procFun[termEqual] = algo.EqualMatch
 	ptr.procFun[termExact] = algo.ExactMatchNaive
@@ -138,28 +161,31 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 	return ptr
 }
 
-func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
+func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet {
+	str = strings.Replace(str, "\\ ", "\t", -1)
 	tokens := _splitRegex.Split(str, -1)
 	sets := []termSet{}
 	set := termSet{}
 	switchSet := false
+	afterBar := false
 	for _, token := range tokens {
-		typ, inv, text := termFuzzy, false, token
+		typ, inv, text := termFuzzy, false, strings.Replace(token, "\t", " ", -1)
 		lowerText := strings.ToLower(text)
 		caseSensitive := caseMode == CaseRespect ||
 			caseMode == CaseSmart && text != lowerText
 		if !caseSensitive {
 			text = lowerText
 		}
-		origText := []rune(text)
 		if !fuzzy {
 			typ = termExact
 		}
 
-		if text == "|" {
+		if len(set) > 0 && !afterBar && text == "|" {
 			switchSet = false
+			afterBar = true
 			continue
 		}
+		afterBar = false
 
 		if strings.HasPrefix(text, "!") {
 			inv = true
@@ -167,6 +193,11 @@ func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
 			text = text[1:]
 		}
 
+		if text != "$" && strings.HasSuffix(text, "$") {
+			typ = termSuffix
+			text = text[:len(text)-1]
+		}
+
 		if strings.HasPrefix(text, "'") {
 			// Flip exactness
 			if fuzzy && !inv {
@@ -177,16 +208,12 @@ func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
 				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
-			if strings.HasSuffix(text, "$") {
+			if typ == termSuffix {
 				typ = termEqual
-				text = text[1 : len(text)-1]
 			} else {
 				typ = termPrefix
-				text = text[1:]
 			}
-		} else if strings.HasSuffix(text, "$") {
+			text = text[1:]
-			typ = termSuffix
-			text = text[:len(text)-1]
 		}
 
 		if len(text) > 0 {
@@ -194,12 +221,15 @@ func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
 				sets = append(sets, set)
 				set = termSet{}
 			}
+			textRunes := []rune(text)
+			if normalize {
+				textRunes = algo.NormalizeRunes(textRunes)
+			}
 			set = append(set, term{
 				typ:           typ,
 				inv:           inv,
-				text:          []rune(text),
+				text:          textRunes,
-				caseSensitive: caseSensitive,
+				caseSensitive: caseSensitive})
-				origText:      origText})
 			switchSet = true
 		}
 	}
@@ -222,46 +252,36 @@ func (p *Pattern) AsString() string {
 	return string(p.text)
 }
 
-// CacheKey is used to build string to be used as the key of result cache
+func (p *Pattern) buildCacheKey() string {
-func (p *Pattern) CacheKey() string {
 	if !p.extended {
 		return p.AsString()
 	}
 	cacheableTerms := []string{}
 	for _, termSet := range p.termSets {
 		if len(termSet) == 1 && !termSet[0].inv && (p.fuzzy || termSet[0].typ == termExact) {
-			cacheableTerms = append(cacheableTerms, string(termSet[0].origText))
+			cacheableTerms = append(cacheableTerms, string(termSet[0].text))
 		}
 	}
-	return strings.Join(cacheableTerms, " ")
+	return strings.Join(cacheableTerms, "\t")
+}
+
+// CacheKey is used to build string to be used as the key of result cache
+func (p *Pattern) CacheKey() string {
+	return p.cacheKey
 }
 
 // Match returns the list of matches Items in the given Chunk
-func (p *Pattern) Match(chunk *Chunk, slab *util.Slab) []*Result {
+func (p *Pattern) Match(chunk *Chunk, slab *util.Slab) []Result {
 	// ChunkCache: Exact match
 	cacheKey := p.CacheKey()
 	if p.cacheable {
-		if cached, found := _cache.Find(chunk, cacheKey); found {
+		if cached := _cache.Lookup(chunk, cacheKey); cached != nil {
 			return cached
 		}
 	}
 
 	// Prefix/suffix cache
-	var space []*Result
+	space := _cache.Search(chunk, cacheKey)
-Loop:
-	for idx := 1; idx < len(cacheKey); idx++ {
-		// [---------| ] | [ |---------]
-		// [--------|  ] | [  |--------]
-		// [-------|   ] | [   |-------]
-		prefix := cacheKey[:len(cacheKey)-idx]
-		suffix := cacheKey[idx:]
-		for _, substr := range [2]*string{&prefix, &suffix} {
-			if cached, found := _cache.Find(chunk, *substr); found {
-				space = cached
-				break Loop
-			}
-		}
-	}
 
 	matches := p.matchChunk(chunk, space, slab)
 
@@ -271,19 +291,19 @@ Loop:
 	return matches
 }
 
-func (p *Pattern) matchChunk(chunk *Chunk, space []*Result, slab *util.Slab) []*Result {
+func (p *Pattern) matchChunk(chunk *Chunk, space []Result, slab *util.Slab) []Result {
-	matches := []*Result{}
+	matches := []Result{}
 
 	if space == nil {
-		for _, item := range *chunk {
+		for idx := 0; idx < chunk.count; idx++ {
-			if match, _, _ := p.MatchItem(item, false, slab); match != nil {
+			if match, _, _ := p.MatchItem(&chunk.items[idx], false, slab); match != nil {
-				matches = append(matches, match)
+				matches = append(matches, *match)
 			}
 		}
 	} else {
 		for _, result := range space {
 			if match, _, _ := p.MatchItem(result.item, false, slab); match != nil {
-				matches = append(matches, match)
+				matches = append(matches, *match)
 			}
 		}
 	}
@@ -293,32 +313,43 @@ func (p *Pattern) matchChunk(chunk *Chunk, space []*Result, slab *util.Slab) []*
 // MatchItem returns true if the Item is a match
 func (p *Pattern) MatchItem(item *Item, withPos bool, slab *util.Slab) (*Result, []Offset, *[]int) {
 	if p.extended {
-		if offsets, bonus, trimLen, pos := p.extendedMatch(item, withPos, slab); len(offsets) == len(p.termSets) {
+		if offsets, bonus, pos := p.extendedMatch(item, withPos, slab); len(offsets) == len(p.termSets) {
-			return buildResult(item, offsets, bonus, trimLen), offsets, pos
+			result := buildResult(item, offsets, bonus)
+			return &result, offsets, pos
 		}
 		return nil, nil, nil
 	}
-	offset, bonus, trimLen, pos := p.basicMatch(item, withPos, slab)
+	offset, bonus, pos := p.basicMatch(item, withPos, slab)
 	if sidx := offset[0]; sidx >= 0 {
 		offsets := []Offset{offset}
-		return buildResult(item, offsets, bonus, trimLen), offsets, pos
+		result := buildResult(item, offsets, bonus)
+		return &result, offsets, pos
 	}
 	return nil, nil, nil
 }
 
-func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset, int, int, *[]int) {
+func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
-	input := p.prepareInput(item)
+	var input []Token
-	if p.fuzzy {
+	if len(p.nth) == 0 {
-		return p.iter(p.fuzzyAlgo, input, p.caseSensitive, p.forward, p.text, withPos, slab)
+		input = []Token{Token{text: &item.text, prefixLength: 0}}
+	} else {
+		input = p.transformInput(item)
 	}
-	return p.iter(algo.ExactMatchNaive, input, p.caseSensitive, p.forward, p.text, withPos, slab)
+	if p.fuzzy {
+		return p.iter(p.fuzzyAlgo, input, p.caseSensitive, p.normalize, p.forward, p.text, withPos, slab)
+	}
+	return p.iter(algo.ExactMatchNaive, input, p.caseSensitive, p.normalize, p.forward, p.text, withPos, slab)
 }
 
-func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Offset, int, int, *[]int) {
+func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Offset, int, *[]int) {
-	input := p.prepareInput(item)
+	var input []Token
+	if len(p.nth) == 0 {
+		input = []Token{Token{text: &item.text, prefixLength: 0}}
+	} else {
+		input = p.transformInput(item)
+	}
 	offsets := []Offset{}
 	var totalScore int
-	var totalTrimLen int
 	var allPos *[]int
 	if withPos {
 		allPos = &[]int{}
@@ -326,16 +357,15 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 	for _, termSet := range p.termSets {
 		var offset Offset
 		var currentScore int
-		var trimLen int
 		matched := false
 		for _, term := range termSet {
 			pfun := p.procFun[term.typ]
-			off, score, tLen, pos := p.iter(pfun, input, term.caseSensitive, p.forward, term.text, withPos, slab)
+			off, score, pos := p.iter(pfun, input, term.caseSensitive, p.normalize, p.forward, term.text, withPos, slab)
 			if sidx := off[0]; sidx >= 0 {
 				if term.inv {
 					continue
 				}
-				offset, currentScore, trimLen = off, score, tLen
+				offset, currentScore = off, score
 				matched = true
 				if withPos {
 					if pos != nil {
@@ -348,7 +378,7 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 				}
 				break
 			} else if term.inv {
-				offset, currentScore, trimLen = Offset{0, 0}, 0, 0
+				offset, currentScore = Offset{0, 0}, 0
 				matched = true
 				continue
 			}
@@ -356,31 +386,25 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 		if matched {
 			offsets = append(offsets, offset)
 			totalScore += currentScore
-			totalTrimLen += trimLen
 		}
 	}
-	return offsets, totalScore, totalTrimLen, allPos
+	return offsets, totalScore, allPos
 }
 
-func (p *Pattern) prepareInput(item *Item) []Token {
+func (p *Pattern) transformInput(item *Item) []Token {
 	if item.transformed != nil {
-		return item.transformed
+		return *item.transformed
 	}
 
-	var ret []Token
+	tokens := Tokenize(item.text.ToString(), p.delimiter)
-	if len(p.nth) == 0 {
+	ret := Transform(tokens, p.nth)
-		ret = []Token{Token{text: &item.text, prefixLength: 0, trimLength: int32(item.text.TrimLength())}}
+	item.transformed = &ret
-	} else {
-		tokens := Tokenize(item.text, p.delimiter)
-		ret = Transform(tokens, p.nth)
-	}
-	item.transformed = ret
 	return ret
 }
 
-func (p *Pattern) iter(pfun algo.Algo, tokens []Token, caseSensitive bool, forward bool, pattern []rune, withPos bool, slab *util.Slab) (Offset, int, int, *[]int) {
+func (p *Pattern) iter(pfun algo.Algo, tokens []Token, caseSensitive bool, normalize bool, forward bool, pattern []rune, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
 	for _, part := range tokens {
-		if res, pos := pfun(caseSensitive, forward, *part.text, pattern, withPos, slab); res.Start >= 0 {
+		if res, pos := pfun(caseSensitive, normalize, forward, part.text, pattern, withPos, slab); res.Start >= 0 {
 			sidx := int32(res.Start) + part.prefixLength
 			eidx := int32(res.End) + part.prefixLength
 			if pos != nil {
@@ -388,8 +412,8 @@ func (p *Pattern) iter(pfun algo.Algo, tokens []Token, caseSensitive bool, forwa
 					(*pos)[idx] += int(part.prefixLength)
 				}
 			}
-			return Offset{sidx, eidx}, res.Score, int(part.trimLength), pos
+			return Offset{sidx, eidx}, res.Score, pos
 		}
 	}
-	return Offset{-1, -1}, 0, -1, nil
+	return Offset{-1, -1}, 0, nil
 }

src/pattern_test.go

@@ -15,8 +15,8 @@ func init() {
 }
 
 func TestParseTermsExtended(t *testing.T) {
-	terms := parseTerms(true, CaseSmart,
+	terms := parseTerms(true, CaseSmart, false,
-		"| aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | | zzz$ | !ZZZ |")
+		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | zzz$ | !ZZZ |")
 	if len(terms) != 9 ||
 		terms[0][0].typ != termFuzzy || terms[0][0].inv ||
 		terms[1][0].typ != termExact || terms[1][0].inv ||
@@ -31,26 +31,18 @@ func TestParseTermsExtended(t *testing.T) {
 		terms[8][1].typ != termExact || terms[8][1].inv ||
 		terms[8][2].typ != termSuffix || terms[8][2].inv ||
 		terms[8][3].typ != termExact || !terms[8][3].inv {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
-	for idx, termSet := range terms[:8] {
+	for _, termSet := range terms[:8] {
 		term := termSet[0]
 		if len(term.text) != 3 {
-			t.Errorf("%s", term)
+			t.Errorf("%v", term)
-		}
-		if idx > 0 && len(term.origText) != 4+idx/5 {
-			t.Errorf("%s", term)
-		}
-	}
-	for _, term := range terms[8] {
-		if len(term.origText) != 4 {
-			t.Errorf("%s", term)
 		}
 	}
 }
 
 func TestParseTermsExtendedExact(t *testing.T) {
-	terms := parseTerms(false, CaseSmart,
+	terms := parseTerms(false, CaseSmart, false,
 		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
 	if len(terms) != 8 ||
 		terms[0][0].typ != termExact || terms[0][0].inv || len(terms[0][0].text) != 3 ||
@@ -61,26 +53,27 @@ func TestParseTermsExtendedExact(t *testing.T) {
 		terms[5][0].typ != termFuzzy || !terms[5][0].inv || len(terms[5][0].text) != 3 ||
 		terms[6][0].typ != termPrefix || !terms[6][0].inv || len(terms[6][0].text) != 3 ||
 		terms[7][0].typ != termSuffix || !terms[7][0].inv || len(terms[7][0].text) != 3 {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
 }
 
 func TestParseTermsEmpty(t *testing.T) {
-	terms := parseTerms(true, CaseSmart, "' $ ^ !' !^ !$")
+	terms := parseTerms(true, CaseSmart, false, "' ^ !' !^")
 	if len(terms) != 0 {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
 }
 
 func TestExact(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, true, true,
+	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true,
 		[]Range{}, Delimiter{}, []rune("'abc"))
+	chars := util.ToChars([]byte("aabbcc abc"))
 	res, pos := algo.ExactMatchNaive(
-		pattern.caseSensitive, pattern.forward, util.RunesToChars([]rune("aabbcc abc")), pattern.termSets[0][0].text, true, nil)
+		pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 	if res.Start != 7 || res.End != 10 {
-		t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
+		t.Errorf("%v / %d / %d", pattern.termSets, res.Start, res.End)
 	}
 	if pos != nil {
 		t.Errorf("pos is expected to be nil")
@@ -90,13 +83,14 @@ func TestExact(t *testing.T) {
 func TestEqual(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, true, true, []Range{}, Delimiter{}, []rune("^AbC$"))
+	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("^AbC$"))
 
 	match := func(str string, sidxExpected int, eidxExpected int) {
+		chars := util.ToChars([]byte(str))
 		res, pos := algo.EqualMatch(
-			pattern.caseSensitive, pattern.forward, util.RunesToChars([]rune(str)), pattern.termSets[0][0].text, true, nil)
+			pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 		if res.Start != sidxExpected || res.End != eidxExpected {
-			t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
+			t.Errorf("%v / %d / %d", pattern.termSets, res.Start, res.End)
 		}
 		if pos != nil {
 			t.Errorf("pos is expected to be nil")
@@ -109,17 +103,17 @@ func TestEqual(t *testing.T) {
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pat1 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseSmart, true, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat1 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat2 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseSmart, true, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat2 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat3 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseIgnore, true, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat3 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseIgnore, false, true, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat4 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseIgnore, true, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat4 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseIgnore, false, true, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat5 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseRespect, true, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat5 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseRespect, false, true, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat6 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseRespect, true, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat6 := BuildPattern(true, algo.FuzzyMatchV2, false, CaseRespect, false, true, true, []Range{}, Delimiter{}, []rune("Abc"))
 
 	if string(pat1.text) != "abc" || pat1.caseSensitive != false ||
 		string(pat2.text) != "Abc" || pat2.caseSensitive != true ||
@@ -132,31 +126,30 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, true, true, []Range{}, Delimiter{}, []rune("jg"))
+	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("jg"))
-	tokens := Tokenize(util.RunesToChars([]rune("junegunn")), Delimiter{})
+	tokens := Tokenize("junegunn", Delimiter{})
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
 	origBytes := []byte("junegunn.choi")
 	for _, extended := range []bool{false, true} {
-		chunk := Chunk{
+		chunk := Chunk{count: 1}
-			&Item{
+		chunk.items[0] = Item{
-				text:        util.RunesToChars([]rune("junegunn")),
+			text:        util.ToChars([]byte("junegunn")),
-				origText:    &origBytes,
+			origText:    &origBytes,
-				transformed: trans},
+			transformed: &trans}
-		}
 		pattern.extended = extended
 		matches := pattern.matchChunk(&chunk, nil, slab) // No cache
 		if !(matches[0].item.text.ToString() == "junegunn" &&
 			string(*matches[0].item.origText) == "junegunn.choi" &&
-			reflect.DeepEqual(matches[0].item.transformed, trans)) {
+			reflect.DeepEqual(*matches[0].item.transformed, trans)) {
 			t.Error("Invalid match result", matches)
 		}
 
-		match, offsets, pos := pattern.MatchItem(chunk[0], true, slab)
+		match, offsets, pos := pattern.MatchItem(&chunk.items[0], true, slab)
 		if !(match.item.text.ToString() == "junegunn" &&
 			string(*match.item.origText) == "junegunn.choi" &&
 			offsets[0][0] == 0 && offsets[0][1] == 5 &&
-			reflect.DeepEqual(match.item.transformed, trans)) {
+			reflect.DeepEqual(*match.item.transformed, trans)) {
 			t.Error("Invalid match result", match, offsets, extended)
 		}
 		if !((*pos)[0] == 4 && (*pos)[1] == 0) {
@@ -167,22 +160,47 @@ func TestOrigTextAndTransformed(t *testing.T) {
 
 func TestCacheKey(t *testing.T) {
 	test := func(extended bool, patStr string, expected string, cacheable bool) {
-		pat := BuildPattern(true, algo.FuzzyMatchV2, extended, CaseSmart, true, true, []Range{}, Delimiter{}, []rune(patStr))
+		clearPatternCache()
+		pat := BuildPattern(true, algo.FuzzyMatchV2, extended, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune(patStr))
 		if pat.CacheKey() != expected {
 			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
 		}
 		if pat.cacheable != cacheable {
-			t.Errorf("Expected: %s, actual: %s (%s)", cacheable, pat.cacheable, patStr)
+			t.Errorf("Expected: %t, actual: %t (%s)", cacheable, pat.cacheable, patStr)
 		}
 		clearPatternCache()
 	}
 	test(false, "foo !bar", "foo !bar", true)
 	test(false, "foo | bar !baz", "foo | bar !baz", true)
-	test(true, "foo  bar  baz", "foo bar baz", true)
+	test(true, "foo  bar  baz", "foo\tbar\tbaz", true)
 	test(true, "foo !bar", "foo", false)
-	test(true, "foo !bar   baz", "foo baz", false)
+	test(true, "foo !bar   baz", "foo\tbaz", false)
 	test(true, "foo | bar baz", "baz", false)
 	test(true, "foo | bar | baz", "", false)
 	test(true, "foo | bar !baz", "", false)
-	test(true, "| | | foo", "foo", true)
+	test(true, "| | foo", "", false)
+	test(true, "| | | foo", "foo", false)
+}
+
+func TestCacheable(t *testing.T) {
+	test := func(fuzzy bool, str string, expected string, cacheable bool) {
+		clearPatternCache()
+		pat := BuildPattern(fuzzy, algo.FuzzyMatchV2, true, CaseSmart, true, true, true, []Range{}, Delimiter{}, []rune(str))
+		if pat.CacheKey() != expected {
+			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
+		}
+		if cacheable != pat.cacheable {
+			t.Errorf("Invalid Pattern.cacheable for \"%s\": %v (expected: %v)", str, pat.cacheable, cacheable)
+		}
+		clearPatternCache()
+	}
+	test(true, "foo bar", "foo\tbar", true)
+	test(true, "foo 'bar", "foo\tbar", false)
+	test(true, "foo !bar", "foo", false)
+
+	test(false, "foo bar", "foo\tbar", true)
+	test(false, "foo 'bar", "foo", false)
+	test(false, "foo '", "foo", true)
+	test(false, "foo 'bar", "foo", false)
+	test(false, "foo !bar", "foo", false)
 }

src/reader.go

@@ -4,6 +4,10 @@ import (
 	"bufio"
 	"io"
 	"os"
+	"os/exec"
+	"sync"
+	"sync/atomic"
+	"time"
 
 	"github.com/junegunn/fzf/src/util"
 )
@@ -13,20 +17,96 @@ type Reader struct {
 	pusher   func([]byte) bool
 	eventBox *util.EventBox
 	delimNil bool
+	event    int32
+	finChan  chan bool
+	mutex    sync.Mutex
+	exec     *exec.Cmd
+	command  *string
+	killed   bool
+	wait     bool
+}
+
+// NewReader returns new Reader object
+func NewReader(pusher func([]byte) bool, eventBox *util.EventBox, delimNil bool, wait bool) *Reader {
+	return &Reader{pusher, eventBox, delimNil, int32(EvtReady), make(chan bool, 1), sync.Mutex{}, nil, nil, false, wait}
+}
+
+func (r *Reader) startEventPoller() {
+	go func() {
+		ptr := &r.event
+		pollInterval := readerPollIntervalMin
+		for {
+			if atomic.CompareAndSwapInt32(ptr, int32(EvtReadNew), int32(EvtReady)) {
+				r.eventBox.Set(EvtReadNew, (*string)(nil))
+				pollInterval = readerPollIntervalMin
+			} else if atomic.LoadInt32(ptr) == int32(EvtReadFin) {
+				if r.wait {
+					r.finChan <- true
+				}
+				return
+			} else {
+				pollInterval += readerPollIntervalStep
+				if pollInterval > readerPollIntervalMax {
+					pollInterval = readerPollIntervalMax
+				}
+			}
+			time.Sleep(pollInterval)
+		}
+	}()
+}
+
+func (r *Reader) fin(success bool) {
+	atomic.StoreInt32(&r.event, int32(EvtReadFin))
+	if r.wait {
+		<-r.finChan
+	}
+
+	r.mutex.Lock()
+	ret := r.command
+	if success || r.killed {
+		ret = nil
+	}
+	r.mutex.Unlock()
+
+	r.eventBox.Set(EvtReadFin, ret)
+}
+
+func (r *Reader) terminate() {
+	r.mutex.Lock()
+	defer func() { r.mutex.Unlock() }()
+
+	r.killed = true
+	if r.exec != nil && r.exec.Process != nil {
+		util.KillCommand(r.exec)
+	} else {
+		os.Stdin.Close()
+	}
+}
+
+func (r *Reader) restart(command string) {
+	r.event = int32(EvtReady)
+	r.startEventPoller()
+	success := r.readFromCommand(nil, command)
+	r.fin(success)
 }
 
 // ReadSource reads data from the default command or from standard input
 func (r *Reader) ReadSource() {
+	r.startEventPoller()
+	var success bool
 	if util.IsTty() {
+		// The default command for *nix requires bash
+		shell := "bash"
 		cmd := os.Getenv("FZF_DEFAULT_COMMAND")
 		if len(cmd) == 0 {
-			cmd = defaultCommand
+			success = r.readFromCommand(&shell, defaultCommand)
+		} else {
+			success = r.readFromCommand(nil, cmd)
 		}
-		r.readFromCommand(cmd)
 	} else {
-		r.readFromStdin()
+		success = r.readFromStdin()
 	}
-	r.eventBox.Set(EvtReadFin, nil)
+	r.fin(success)
 }
 
 func (r *Reader) feed(src io.Reader) {
@@ -40,7 +120,7 @@ func (r *Reader) feed(src io.Reader) {
 		// end in delim.
 		bytea, err := reader.ReadBytes(delim)
 		byteaLen := len(bytea)
-		if len(bytea) > 0 {
+		if byteaLen > 0 {
 			if err == nil {
 				// get rid of carriage return if under Windows:
 				if util.IsWindows() && byteaLen >= 2 && bytea[byteaLen-2] == byte('\r') {
@@ -50,7 +130,7 @@ func (r *Reader) feed(src io.Reader) {
 				}
 			}
 			if r.pusher(bytea) {
-				r.eventBox.Set(EvtReadNew, nil)
+				atomic.StoreInt32(&r.event, int32(EvtReadNew))
 			}
 		}
 		if err != nil {
@@ -59,20 +139,30 @@ func (r *Reader) feed(src io.Reader) {
 	}
 }
 
-func (r *Reader) readFromStdin() {
+func (r *Reader) readFromStdin() bool {
 	r.feed(os.Stdin)
+	return true
 }
 
-func (r *Reader) readFromCommand(cmd string) {
+func (r *Reader) readFromCommand(shell *string, command string) bool {
-	listCommand := util.ExecCommand(cmd)
+	r.mutex.Lock()
-	out, err := listCommand.StdoutPipe()
+	r.killed = false
-	if err != nil {
+	r.command = &command
-		return
+	if shell != nil {
+		r.exec = util.ExecCommandWith(*shell, command, true)
+	} else {
+		r.exec = util.ExecCommand(command, true)
 	}
-	err = listCommand.Start()
+	out, err := r.exec.StdoutPipe()
 	if err != nil {
-		return
+		r.mutex.Unlock()
+		return false
+	}
+	err = r.exec.Start()
+	r.mutex.Unlock()
+	if err != nil {
+		return false
 	}
-	defer listCommand.Wait()
 	r.feed(out)
+	return r.exec.Wait() == nil
 }

src/reader_test.go

@@ -2,6 +2,7 @@ package fzf
 
 import (
 	"testing"
+	"time"
 
 	"github.com/junegunn/fzf/src/util"
 )
@@ -9,9 +10,11 @@ import (
 func TestReadFromCommand(t *testing.T) {
 	strs := []string{}
 	eb := util.NewEventBox()
-	reader := Reader{
+	reader := NewReader(
-		pusher:   func(s []byte) bool { strs = append(strs, string(s)); return true },
+		func(s []byte) bool { strs = append(strs, string(s)); return true },
-		eventBox: eb}
+		eb, false, true)
+
+	reader.startEventPoller()
 
 	// Check EventBox
 	if eb.Peek(EvtReadNew) {
@@ -19,21 +22,16 @@ func TestReadFromCommand(t *testing.T) {
 	}
 
 	// Normal command
-	reader.readFromCommand(`echo abc && echo def`)
+	reader.fin(reader.readFromCommand(nil, `echo abc && echo def`))
 	if len(strs) != 2 || strs[0] != "abc" || strs[1] != "def" {
 		t.Errorf("%s", strs)
 	}
 
 	// Check EventBox again
-	if !eb.Peek(EvtReadNew) {
+	eb.WaitFor(EvtReadFin)
-		t.Error("EvtReadNew should be set yet")
-	}
 
 	// Wait should return immediately
 	eb.Wait(func(events *util.Events) {
-		if _, found := (*events)[EvtReadNew]; !found {
-			t.Errorf("%s", events)
-		}
 		events.Clear()
 	})
 
@@ -42,8 +40,14 @@ func TestReadFromCommand(t *testing.T) {
 		t.Error("EvtReadNew should not be set yet")
 	}
 
+	// Make sure that event poller is finished
+	time.Sleep(readerPollIntervalMax)
+
+	// Restart event poller
+	reader.startEventPoller()
+
 	// Failing command
-	reader.readFromCommand(`no-such-command`)
+	reader.fin(reader.readFromCommand(nil, `no-such-command`))
 	strs = []string{}
 	if len(strs) > 0 {
 		t.Errorf("%s", strs)
@@ -51,6 +55,9 @@ func TestReadFromCommand(t *testing.T) {
 
 	// Check EventBox again
 	if eb.Peek(EvtReadNew) {
-		t.Error("Command failed. EvtReadNew should be set")
+		t.Error("Command failed. EvtReadNew should not be set")
+	}
+	if !eb.Peek(EvtReadFin) {
+		t.Error("EvtReadFin should be set")
 	}
 }

src/result.go

@@ -16,33 +16,29 @@ type colorOffset struct {
 	offset [2]int32
 	color  tui.ColorPair
 	attr   tui.Attr
-	index  int32
-}
-
-type rank struct {
-	points [4]uint16
-	index  int32
 }
 
 type Result struct {
-	item *Item
+	item   *Item
-	rank rank
+	points [4]uint16
 }
 
-func buildResult(item *Item, offsets []Offset, score int, trimLen int) *Result {
+func buildResult(item *Item, offsets []Offset, score int) Result {
 	if len(offsets) > 1 {
 		sort.Sort(ByOrder(offsets))
 	}
 
-	result := Result{item: item, rank: rank{index: item.index}}
+	result := Result{item: item}
 	numChars := item.text.Length()
 	minBegin := math.MaxUint16
+	minEnd := math.MaxUint16
 	maxEnd := 0
 	validOffsetFound := false
 	for _, offset := range offsets {
 		b, e := int(offset[0]), int(offset[1])
 		if b < e {
 			minBegin = util.Min(b, minBegin)
+			minEnd = util.Min(e, minEnd)
 			maxEnd = util.Max(e, maxEnd)
 			validOffsetFound = true
 		}
@@ -55,8 +51,7 @@ func buildResult(item *Item, offsets []Offset, score int, trimLen int) *Result {
 			// Higher is better
 			val = math.MaxUint16 - util.AsUint16(score)
 		case byLength:
-			// If offsets is empty, trimLen will be 0, but we don't care
+			val = item.TrimLength()
-			val = util.AsUint16(trimLen)
 		case byBegin, byEnd:
 			if validOffsetFound {
 				whitePrefixLen := 0
@@ -68,16 +63,16 @@ func buildResult(item *Item, offsets []Offset, score int, trimLen int) *Result {
 					}
 				}
 				if criterion == byBegin {
-					val = util.AsUint16(minBegin - whitePrefixLen)
+					val = util.AsUint16(minEnd - whitePrefixLen)
 				} else {
-					val = util.AsUint16(math.MaxUint16 - math.MaxUint16*(maxEnd-whitePrefixLen)/trimLen)
+					val = util.AsUint16(math.MaxUint16 - math.MaxUint16*(maxEnd-whitePrefixLen)/int(item.TrimLength()))
 				}
 			}
 		}
-		result.rank.points[idx] = val
+		result.points[3-idx] = val
 	}
 
-	return &result
+	return result
 }
 
 // Sort criteria to use. Never changes once fzf is started.
@@ -85,11 +80,11 @@ var sortCriteria []criterion
 
 // Index returns ordinal index of the Item
 func (result *Result) Index() int32 {
-	return result.item.index
+	return result.item.Index()
 }
 
-func minRank() rank {
+func minRank() Result {
-	return rank{index: 0, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
+	return Result{item: &minItem, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
 }
 
 func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme, color tui.ColorPair, attr tui.Attr, current bool) []colorOffset {
@@ -166,7 +161,7 @@ func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme,
 				}
 				colors = append(colors, colorOffset{
 					offset: [2]int32{int32(start), int32(idx)},
-					color:  tui.PairFor(fg, bg),
+					color:  tui.NewColorPair(fg, bg),
 					attr:   ansi.color.attr.Merge(attr)})
 			}
 		}
@@ -200,7 +195,7 @@ func (a ByOrder) Less(i, j int) bool {
 }
 
 // ByRelevance is for sorting Items
-type ByRelevance []*Result
+type ByRelevance []Result
 
 func (a ByRelevance) Len() int {
 	return len(a)
@@ -211,11 +206,11 @@ func (a ByRelevance) Swap(i, j int) {
 }
 
 func (a ByRelevance) Less(i, j int) bool {
-	return compareRanks((*a[i]).rank, (*a[j]).rank, false)
+	return compareRanks(a[i], a[j], false)
 }
 
 // ByRelevanceTac is for sorting Items
-type ByRelevanceTac []*Result
+type ByRelevanceTac []Result
 
 func (a ByRelevanceTac) Len() int {
 	return len(a)
@@ -226,18 +221,5 @@ func (a ByRelevanceTac) Swap(i, j int) {
 }
 
 func (a ByRelevanceTac) Less(i, j int) bool {
-	return compareRanks((*a[i]).rank, (*a[j]).rank, true)
+	return compareRanks(a[i], a[j], true)
-}
-
-func compareRanks(irank rank, jrank rank, tac bool) bool {
-	for idx := 0; idx < 4; idx++ {
-		left := irank.points[idx]
-		right := jrank.points[idx]
-		if left < right {
-			return true
-		} else if left > right {
-			return false
-		}
-	}
-	return (irank.index <= jrank.index) != tac
 }

src/result_others.go

@@ -0,0 +1,16 @@
+// +build !386,!amd64
+
+package fzf
+
+func compareRanks(irank Result, jrank Result, tac bool) bool {
+	for idx := 3; idx >= 0; idx-- {
+		left := irank.points[idx]
+		right := jrank.points[idx]
+		if left < right {
+			return true
+		} else if left > right {
+			return false
+		}
+	}
+	return (irank.item.Index() <= jrank.item.Index()) != tac
+}

src/result_test.go

@@ -11,6 +11,11 @@ import (
 	"github.com/junegunn/fzf/src/util"
 )
 
+func withIndex(i *Item, index int) *Item {
+	(*i).text.Index = int32(index)
+	return i
+}
+
 func TestOffsetSort(t *testing.T) {
 	offsets := []Offset{
 		Offset{3, 5}, Offset{2, 7},
@@ -26,10 +31,10 @@ func TestOffsetSort(t *testing.T) {
 }
 
 func TestRankComparison(t *testing.T) {
-	rank := func(vals ...uint16) rank {
+	rank := func(vals ...uint16) Result {
-		return rank{
+		return Result{
 			points: [4]uint16{vals[0], vals[1], vals[2], vals[3]},
-			index:  int32(vals[4])}
+			item:   &Item{text: util.Chars{Index: int32(vals[4])}}}
 	}
 	if compareRanks(rank(3, 0, 0, 0, 5), rank(2, 0, 0, 0, 7), false) ||
 		!compareRanks(rank(3, 0, 0, 0, 5), rank(3, 0, 0, 0, 6), false) ||
@@ -52,36 +57,41 @@ func TestResultRank(t *testing.T) {
 	sortCriteria = []criterion{byScore, byLength}
 
 	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
-	item1 := buildResult(&Item{text: util.RunesToChars(strs[0]), index: 1}, []Offset{}, 2, 3)
+	item1 := buildResult(
-	if item1.rank.points[0] != math.MaxUint16-2 || // Bonus
+		withIndex(&Item{text: util.RunesToChars(strs[0])}, 1), []Offset{}, 2)
-		item1.rank.points[1] != 3 || // Length
+	if item1.points[3] != math.MaxUint16-2 || // Bonus
-		item1.rank.points[2] != 0 || // Unused
+		item1.points[2] != 3 || // Length
-		item1.rank.points[3] != 0 || // Unused
+		item1.points[1] != 0 || // Unused
-		item1.item.index != 1 {
+		item1.points[0] != 0 || // Unused
-		t.Error(item1.rank)
+		item1.item.Index() != 1 {
+		t.Error(item1)
 	}
 	// Only differ in index
-	item2 := buildResult(&Item{text: util.RunesToChars(strs[0])}, []Offset{}, 2, 3)
+	item2 := buildResult(&Item{text: util.RunesToChars(strs[0])}, []Offset{}, 2)
 
-	items := []*Result{item1, item2}
+	items := []Result{item1, item2}
 	sort.Sort(ByRelevance(items))
 	if items[0] != item2 || items[1] != item1 {
 		t.Error(items)
 	}
 
-	items = []*Result{item2, item1, item1, item2}
+	items = []Result{item2, item1, item1, item2}
 	sort.Sort(ByRelevance(items))
 	if items[0] != item2 || items[1] != item2 ||
 		items[2] != item1 || items[3] != item1 {
-		t.Error(items, item1, item1.item.index, item2, item2.item.index)
+		t.Error(items, item1, item1.item.Index(), item2, item2.item.Index())
 	}
 
 	// Sort by relevance
-	item3 := buildResult(&Item{index: 2}, []Offset{Offset{1, 3}, Offset{5, 7}}, 3, 0)
+	item3 := buildResult(
-	item4 := buildResult(&Item{index: 2}, []Offset{Offset{1, 2}, Offset{6, 7}}, 4, 0)
+		withIndex(&Item{}, 2), []Offset{Offset{1, 3}, Offset{5, 7}}, 3)
-	item5 := buildResult(&Item{index: 2}, []Offset{Offset{1, 3}, Offset{5, 7}}, 5, 0)
+	item4 := buildResult(
-	item6 := buildResult(&Item{index: 2}, []Offset{Offset{1, 2}, Offset{6, 7}}, 6, 0)
+		withIndex(&Item{}, 2), []Offset{Offset{1, 2}, Offset{6, 7}}, 4)
-	items = []*Result{item1, item2, item3, item4, item5, item6}
+	item5 := buildResult(
+		withIndex(&Item{}, 2), []Offset{Offset{1, 3}, Offset{5, 7}}, 5)
+	item6 := buildResult(
+		withIndex(&Item{}, 2), []Offset{Offset{1, 2}, Offset{6, 7}}, 6)
+	items = []Result{item1, item2, item3, item4, item5, item6}
 	sort.Sort(ByRelevance(items))
 	if !(items[0] == item6 && items[1] == item5 &&
 		items[2] == item4 && items[3] == item3 &&
@@ -105,7 +115,8 @@ func TestColorOffset(t *testing.T) {
 				ansiOffset{[2]int32{33, 40}, ansiState{4, 8, tui.Bold}}}}}
 	// [{[0 5] 9 false} {[5 15] 99 false} {[15 20] 9 false} {[22 25] 10 true} {[25 35] 99 false} {[35 40] 11 true}]
 
-	colors := item.colorOffsets(offsets, tui.Dark256, 99, 0, true)
+	pair := tui.NewColorPair(99, 199)
+	colors := item.colorOffsets(offsets, tui.Dark256, pair, tui.AttrRegular, true)
 	assert := func(idx int, b int32, e int32, c tui.ColorPair, bold bool) {
 		var attr tui.Attr
 		if bold {
@@ -116,10 +127,10 @@ func TestColorOffset(t *testing.T) {
 			t.Error(o)
 		}
 	}
-	assert(0, 0, 5, tui.ColUser, false)
+	assert(0, 0, 5, tui.NewColorPair(1, 5), false)
-	assert(1, 5, 15, 99, false)
+	assert(1, 5, 15, pair, false)
-	assert(2, 15, 20, tui.ColUser, false)
+	assert(2, 15, 20, tui.NewColorPair(1, 5), false)
-	assert(3, 22, 25, tui.ColUser+1, true)
+	assert(3, 22, 25, tui.NewColorPair(2, 6), true)
-	assert(4, 25, 35, 99, false)
+	assert(4, 25, 35, pair, false)
-	assert(5, 35, 40, tui.ColUser+2, true)
+	assert(5, 35, 40, tui.NewColorPair(4, 8), true)
 }

src/result_x86.go

@@ -0,0 +1,16 @@
+// +build 386 amd64
+
+package fzf
+
+import "unsafe"
+
+func compareRanks(irank Result, jrank Result, tac bool) bool {
+	left := *(*uint64)(unsafe.Pointer(&irank.points[0]))
+	right := *(*uint64)(unsafe.Pointer(&jrank.points[0]))
+	if left < right {
+		return true
+	} else if left > right {
+		return false
+	}
+	return (irank.item.Index() <= jrank.item.Index()) != tac
+}

src/terminal_test.go

@@ -10,64 +10,130 @@ import (
 func newItem(str string) *Item {
 	bytes := []byte(str)
 	trimmed, _, _ := extractColor(str, nil, nil)
-	return &Item{origText: &bytes, text: util.RunesToChars([]rune(trimmed))}
+	return &Item{origText: &bytes, text: util.ToChars([]byte(trimmed))}
 }
 
 func TestReplacePlaceholder(t *testing.T) {
-	items1 := []*Item{newItem("  foo'bar \x1b[31mbaz\x1b[m")}
+	item1 := newItem("  foo'bar \x1b[31mbaz\x1b[m")
+	items1 := []*Item{item1, item1}
 	items2 := []*Item{
+		newItem("foo'bar \x1b[31mbaz\x1b[m"),
 		newItem("foo'bar \x1b[31mbaz\x1b[m"),
 		newItem("FOO'BAR \x1b[31mBAZ\x1b[m")}
 
+	delim := "'"
+	var regex *regexp.Regexp
+
 	var result string
 	check := func(expected string) {
 		if result != expected {
 			t.Errorf("expected: %s, actual: %s", expected, result)
 		}
 	}
-
+	printsep := "\n"
 	// {}, preserve ansi
-	result = replacePlaceholder("echo {}", false, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {}", false, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar \x1b[31mbaz\x1b[m'")
 
 	// {}, strip ansi
-	result = replacePlaceholder("echo {}", true, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz'")
 
 	// {}, with multiple items
-	result = replacePlaceholder("echo {}", true, Delimiter{}, "query", items2)
+	result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items2)
-	check("echo 'foo'\\''bar baz' 'FOO'\\''BAR BAZ'")
+	check("echo 'foo'\\''bar baz'")
 
 	// {..}, strip leading whitespaces, preserve ansi
-	result = replacePlaceholder("echo {..}", false, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {..}", false, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar \x1b[31mbaz\x1b[m'")
 
 	// {..}, strip leading whitespaces, strip ansi
-	result = replacePlaceholder("echo {..}", true, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {..}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar baz'")
 
 	// {q}
-	result = replacePlaceholder("echo {} {q}", true, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {} {q}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz' 'query'")
 
 	// {q}, multiple items
-	result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, "query 'string'", items2)
+	result = replacePlaceholder("echo {+}{q}{+}", true, Delimiter{}, printsep, false, "query 'string'", items2)
 	check("echo 'foo'\\''bar baz' 'FOO'\\''BAR BAZ''query '\\''string'\\''''foo'\\''bar baz' 'FOO'\\''BAR BAZ'")
 
-	result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, "query", items1)
+	result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, printsep, false, "query 'string'", items2)
+	check("echo 'foo'\\''bar baz''query '\\''string'\\''''foo'\\''bar baz'")
+
+	result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar'/'baz'/'bazfoo'\\''bar'/'baz'/'foo'\\''bar'/'  foo'\\''bar baz'/'foo'\\''bar baz'/{n.t}/{}/{1}/{q}/''")
 
-	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, "query", items2)
+	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items2)
+	check("echo 'foo'\\''bar'/'baz'/'baz'/'foo'\\''bar'/'foo'\\''bar baz'/{n.t}/{}/{1}/{q}/''")
+
+	result = replacePlaceholder("echo {+1}/{+2}/{+-1}/{+-2}/{+..}/{n.t}/\\{}/\\{1}/\\{q}/{+3}", true, Delimiter{}, printsep, false, "query", items2)
 	check("echo 'foo'\\''bar' 'FOO'\\''BAR'/'baz' 'BAZ'/'baz' 'BAZ'/'foo'\\''bar' 'FOO'\\''BAR'/'foo'\\''bar baz' 'FOO'\\''BAR BAZ'/{n.t}/{}/{1}/{q}/'' ''")
 
+	// forcePlus
+	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, true, "query", items2)
+	check("echo 'foo'\\''bar' 'FOO'\\''BAR'/'baz' 'BAZ'/'baz' 'BAZ'/'foo'\\''bar' 'FOO'\\''BAR'/'foo'\\''bar baz' 'FOO'\\''BAR BAZ'/{n.t}/{}/{1}/{q}/'' ''")
+
+	// Whitespace preserving flag with "'" delimiter
+	result = replacePlaceholder("echo {s1}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo 'bar baz'")
+
+	result = replacePlaceholder("echo {s}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'\\''bar baz'")
+
+	result = replacePlaceholder("echo {s..}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'\\''bar baz'")
+
+	// Whitespace preserving flag with regex delimiter
+	regex = regexp.MustCompile(`\w+`)
+
+	result = replacePlaceholder("echo {s1}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo '  '")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo ''\\'''")
+
+	result = replacePlaceholder("echo {s3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo ' '")
+
+	// No match
+	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, nil})
+	check("echo /")
+
+	// No match, but with selections
+	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, item1})
+	check("echo /'  foo'\\''bar baz'")
+
 	// String delimiter
-	delim := "'"
+	result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
-	result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, "query", items1)
 	check("echo '  foo'\\''bar baz'/'foo'/'bar baz'")
 
 	// Regex delimiter
-	regex := regexp.MustCompile("[oa]+")
+	regex = regexp.MustCompile("[oa]+")
 	// foo'bar baz
-	result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, "query", items1)
+	result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz'/'f'/'r b'/''\\''bar b'")
 }
+
+func TestQuoteEntryCmd(t *testing.T) {
+	tests := map[string]string{
+		`"`:                       `^"\^"^"`,
+		`\`:                       `^"\\^"`,
+		`\"`:                      `^"\\\^"^"`,
+		`"\\\"`:                   `^"\^"\\\\\\\^"^"`,
+		`&|<>()@^%!`:              `^"^&^|^<^>^(^)^@^^^%^!^"`,
+		`%USERPROFILE%`:           `^"^%USERPROFILE^%^"`,
+		`C:\Program Files (x86)\`: `^"C:\\Program Files ^(x86^)\\^"`,
+	}
+
+	for input, expected := range tests {
+		escaped := quoteEntryCmd(input)
+		if escaped != expected {
+			t.Errorf("Input: %s, expected: %s, actual %s", input, expected, escaped)
+		}
+	}
+}

src/terminal_unix.go

@@ -11,3 +11,11 @@ import (
 func notifyOnResize(resizeChan chan<- os.Signal) {
 	signal.Notify(resizeChan, syscall.SIGWINCH)
 }
+
+func notifyStop(p *os.Process) {
+	p.Signal(syscall.SIGSTOP)
+}
+
+func notifyOnCont(resizeChan chan<- os.Signal) {
+	signal.Notify(resizeChan, syscall.SIGCONT)
+}

src/terminal_windows.go

@@ -9,3 +9,11 @@ import (
 func notifyOnResize(resizeChan chan<- os.Signal) {
 	// TODO
 }
+
+func notifyStop(p *os.Process) {
+	// NOOP
+}
+
+func notifyOnCont(resizeChan chan<- os.Signal) {
+	// NOOP
+}

src/tokenizer.go

@@ -1,6 +1,8 @@
 package fzf
 
 import (
+	"bytes"
+	"fmt"
 	"regexp"
 	"strconv"
 	"strings"
@@ -20,7 +22,11 @@ type Range struct {
 type Token struct {
 	text         *util.Chars
 	prefixLength int32
-	trimLength   int32
+}
+
+// String returns the string representation of a Token.
+func (t Token) String() string {
+	return fmt.Sprintf("Token{text: %s, prefixLength: %d}", t.text, t.prefixLength)
 }
 
 // Delimiter for tokenizing the input
@@ -29,6 +35,11 @@ type Delimiter struct {
 	str   *string
 }
 
+// String returns the string representation of a Delimeter.
+func (d Delimiter) String() string {
+	return fmt.Sprintf("Delimiter{regex: %v, str: &%q}", d.regex, *d.str)
+}
+
 func newRange(begin int, end int) Range {
 	if begin == 1 {
 		begin = rangeEllipsis
@@ -75,14 +86,14 @@ func ParseRange(str *string) (Range, bool) {
 	return newRange(n, n), true
 }
 
-func withPrefixLengths(tokens []util.Chars, begin int) []Token {
+func withPrefixLengths(tokens []string, begin int) []Token {
 	ret := make([]Token, len(tokens))
 
 	prefixLength := begin
-	for idx, token := range tokens {
+	for idx := range tokens {
-		// NOTE: &tokens[idx] instead of &tokens
+		chars := util.ToChars([]byte(tokens[idx]))
-		ret[idx] = Token{&tokens[idx], int32(prefixLength), int32(token.TrimLength())}
+		ret[idx] = Token{&chars, int32(prefixLength)}
-		prefixLength += token.Length()
+		prefixLength += chars.Length()
 	}
 	return ret
 }
@@ -93,16 +104,15 @@ const (
 	awkWhite
 )
 
-func awkTokenizer(input util.Chars) ([]util.Chars, int) {
+func awkTokenizer(input string) ([]string, int) {
 	// 9, 32
-	ret := []util.Chars{}
+	ret := []string{}
 	prefixLength := 0
 	state := awkNil
-	numChars := input.Length()
 	begin := 0
 	end := 0
-	for idx := 0; idx < numChars; idx++ {
+	for idx := 0; idx < len(input); idx++ {
-		r := input.Get(idx)
+		r := input[idx]
 		white := r == 9 || r == 32
 		switch state {
 		case awkNil:
@@ -120,19 +130,19 @@ func awkTokenizer(input util.Chars) ([]util.Chars, int) {
 			if white {
 				end = idx + 1
 			} else {
-				ret = append(ret, input.Slice(begin, end))
+				ret = append(ret, input[begin:end])
 				state, begin, end = awkBlack, idx, idx+1
 			}
 		}
 	}
 	if begin < end {
-		ret = append(ret, input.Slice(begin, end))
+		ret = append(ret, input[begin:end])
 	}
 	return ret, prefixLength
 }
 
 // Tokenize tokenizes the given string with the delimiter
-func Tokenize(text util.Chars, delimiter Delimiter) []Token {
+func Tokenize(text string, delimiter Delimiter) []Token {
 	if delimiter.str == nil && delimiter.regex == nil {
 		// AWK-style (\S+\s*)
 		tokens, prefixLength := awkTokenizer(text)
@@ -140,36 +150,31 @@ func Tokenize(text util.Chars, delimiter Delimiter) []Token {
 	}
 
 	if delimiter.str != nil {
-		return withPrefixLengths(text.Split(*delimiter.str), 0)
+		return withPrefixLengths(strings.SplitAfter(text, *delimiter.str), 0)
 	}
 
 	// FIXME performance
 	var tokens []string
 	if delimiter.regex != nil {
-		str := text.ToString()
+		for len(text) > 0 {
-		for len(str) > 0 {
+			loc := delimiter.regex.FindStringIndex(text)
-			loc := delimiter.regex.FindStringIndex(str)
+			if len(loc) < 2 {
-			if loc == nil {
+				loc = []int{0, len(text)}
-				loc = []int{0, len(str)}
 			}
 			last := util.Max(loc[1], 1)
-			tokens = append(tokens, str[:last])
+			tokens = append(tokens, text[:last])
-			str = str[last:]
+			text = text[last:]
 		}
 	}
-	asRunes := make([]util.Chars, len(tokens))
+	return withPrefixLengths(tokens, 0)
-	for i, token := range tokens {
-		asRunes[i] = util.RunesToChars([]rune(token))
-	}
-	return withPrefixLengths(asRunes, 0)
 }
 
-func joinTokens(tokens []Token) []rune {
+func joinTokens(tokens []Token) string {
-	ret := []rune{}
+	var output bytes.Buffer
 	for _, token := range tokens {
-		ret = append(ret, token.text.ToRunes()...)
+		output.WriteString(token.text.ToString())
 	}
-	return ret
+	return output.String()
 }
 
 // Transform is used to transform the input when --with-nth option is given
@@ -182,7 +187,7 @@ func Transform(tokens []Token, withNth []Range) []Token {
 		if r.begin == r.end {
 			idx := r.begin
 			if idx == rangeEllipsis {
-				chars := util.RunesToChars(joinTokens(tokens))
+				chars := util.ToChars([]byte(joinTokens(tokens)))
 				parts = append(parts, &chars)
 			} else {
 				if idx < 0 {
@@ -225,15 +230,15 @@ func Transform(tokens []Token, withNth []Range) []Token {
 		var merged util.Chars
 		switch len(parts) {
 		case 0:
-			merged = util.RunesToChars([]rune{})
+			merged = util.ToChars([]byte{})
 		case 1:
 			merged = *parts[0]
 		default:
-			runes := []rune{}
+			var output bytes.Buffer
 			for _, part := range parts {
-				runes = append(runes, part.ToRunes()...)
+				output.WriteString(part.ToString())
 			}
-			merged = util.RunesToChars(runes)
+			merged = util.ToChars(output.Bytes())
 		}
 
 		var prefixLength int32
@@ -242,7 +247,7 @@ func Transform(tokens []Token, withNth []Range) []Token {
 		} else {
 			prefixLength = 0
 		}
-		transTokens[idx] = Token{&merged, prefixLength, int32(merged.TrimLength())}
+		transTokens[idx] = Token{&merged, prefixLength}
 	}
 	return transTokens
 }

src/tokenizer_test.go

@@ -2,8 +2,6 @@ package fzf
 
 import (
 	"testing"
-
-	"github.com/junegunn/fzf/src/util"
 )
 
 func TestParseRange(t *testing.T) {
@@ -11,35 +9,35 @@ func TestParseRange(t *testing.T) {
 		i := ".."
 		r, _ := ParseRange(&i)
 		if r.begin != rangeEllipsis || r.end != rangeEllipsis {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3.."
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != rangeEllipsis {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3..5"
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != 5 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "-3..-5"
 		r, _ := ParseRange(&i)
 		if r.begin != -3 || r.end != -5 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3"
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != 3 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 }
@@ -47,23 +45,23 @@ func TestParseRange(t *testing.T) {
 func TestTokenize(t *testing.T) {
 	// AWK-style
 	input := "  abc:  def:  ghi  "
-	tokens := Tokenize(util.RunesToChars([]rune(input)), Delimiter{})
+	tokens := Tokenize(input, Delimiter{})
-	if tokens[0].text.ToString() != "abc:  " || tokens[0].prefixLength != 2 || tokens[0].trimLength != 4 {
+	if tokens[0].text.ToString() != "abc:  " || tokens[0].prefixLength != 2 {
 		t.Errorf("%s", tokens)
 	}
 
 	// With delimiter
-	tokens = Tokenize(util.RunesToChars([]rune(input)), delimiterRegexp(":"))
+	tokens = Tokenize(input, delimiterRegexp(":"))
-	if tokens[0].text.ToString() != "  abc:" || tokens[0].prefixLength != 0 || tokens[0].trimLength != 4 {
+	if tokens[0].text.ToString() != "  abc:" || tokens[0].prefixLength != 0 {
-		t.Errorf("%s", tokens)
+		t.Error(tokens[0].text.ToString(), tokens[0].prefixLength)
 	}
 
 	// With delimiter regex
-	tokens = Tokenize(util.RunesToChars([]rune(input)), delimiterRegexp("\\s+"))
+	tokens = Tokenize(input, delimiterRegexp("\\s+"))
-	if tokens[0].text.ToString() != "  " || tokens[0].prefixLength != 0 || tokens[0].trimLength != 0 ||
+	if tokens[0].text.ToString() != "  " || tokens[0].prefixLength != 0 ||
-		tokens[1].text.ToString() != "abc:  " || tokens[1].prefixLength != 2 || tokens[1].trimLength != 4 ||
+		tokens[1].text.ToString() != "abc:  " || tokens[1].prefixLength != 2 ||
-		tokens[2].text.ToString() != "def:  " || tokens[2].prefixLength != 8 || tokens[2].trimLength != 4 ||
+		tokens[2].text.ToString() != "def:  " || tokens[2].prefixLength != 8 ||
-		tokens[3].text.ToString() != "ghi  " || tokens[3].prefixLength != 14 || tokens[3].trimLength != 3 {
+		tokens[3].text.ToString() != "ghi  " || tokens[3].prefixLength != 14 {
 		t.Errorf("%s", tokens)
 	}
 }
@@ -71,11 +69,11 @@ func TestTokenize(t *testing.T) {
 func TestTransform(t *testing.T) {
 	input := "  abc:  def:  ghi:  jkl"
 	{
-		tokens := Tokenize(util.RunesToChars([]rune(input)), Delimiter{})
+		tokens := Tokenize(input, Delimiter{})
 		{
 			ranges := splitNth("1,2,3")
 			tx := Transform(tokens, ranges)
-			if string(joinTokens(tx)) != "abc:  def:  ghi:  " {
+			if joinTokens(tx) != "abc:  def:  ghi:  " {
 				t.Errorf("%s", tx)
 			}
 		}
@@ -93,11 +91,11 @@ func TestTransform(t *testing.T) {
 		}
 	}
 	{
-		tokens := Tokenize(util.RunesToChars([]rune(input)), delimiterRegexp(":"))
+		tokens := Tokenize(input, delimiterRegexp(":"))
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if string(joinTokens(tx)) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
+			if joinTokens(tx) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
 				len(tx) != 4 ||
 				tx[0].text.ToString() != "  abc:  def:" || tx[0].prefixLength != 0 ||
 				tx[1].text.ToString() != "  ghi:" || tx[1].prefixLength != 12 ||

src/tui/dummy.go

@@ -0,0 +1,44 @@
+// +build !ncurses
+// +build !tcell
+// +build !windows
+
+package tui
+
+type Attr int
+
+func HasFullscreenRenderer() bool {
+	return false
+}
+
+func (a Attr) Merge(b Attr) Attr {
+	return a | b
+}
+
+const (
+	AttrRegular Attr = Attr(0)
+	Bold             = Attr(1)
+	Dim              = Attr(1 << 1)
+	Italic           = Attr(1 << 2)
+	Underline        = Attr(1 << 3)
+	Blink            = Attr(1 << 4)
+	Blink2           = Attr(1 << 5)
+	Reverse          = Attr(1 << 6)
+)
+
+func (r *FullscreenRenderer) Init()       {}
+func (r *FullscreenRenderer) Pause(bool)  {}
+func (r *FullscreenRenderer) Resume(bool) {}
+func (r *FullscreenRenderer) Clear()      {}
+func (r *FullscreenRenderer) Refresh()    {}
+func (r *FullscreenRenderer) Close()      {}
+
+func (r *FullscreenRenderer) DoesAutoWrap() bool { return false }
+func (r *FullscreenRenderer) GetChar() Event     { return Event{} }
+func (r *FullscreenRenderer) MaxX() int          { return 0 }
+func (r *FullscreenRenderer) MaxY() int          { return 0 }
+
+func (r *FullscreenRenderer) RefreshWindows(windows []Window) {}
+
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
+	return nil
+}

src/tui/light.go

@@ -0,0 +1,956 @@
+package tui
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+	"unicode/utf8"
+
+	"github.com/junegunn/fzf/src/util"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+const (
+	defaultWidth  = 80
+	defaultHeight = 24
+
+	defaultEscDelay = 100
+	escPollInterval = 5
+	offsetPollTries = 10
+)
+
+const consoleDevice string = "/dev/tty"
+
+var offsetRegexp *regexp.Regexp = regexp.MustCompile("(.*)\x1b\\[([0-9]+);([0-9]+)R")
+
+func openTtyIn() *os.File {
+	in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
+	if err != nil {
+		tty := ttyname()
+		if len(tty) > 0 {
+			if in, err := os.OpenFile(tty, syscall.O_RDONLY, 0); err == nil {
+				return in
+			}
+		}
+		fmt.Fprintln(os.Stderr, "Failed to open "+consoleDevice)
+		os.Exit(2)
+	}
+	return in
+}
+
+func (r *LightRenderer) stderr(str string) {
+	r.stderrInternal(str, true)
+}
+
+// FIXME: Need better handling of non-displayable characters
+func (r *LightRenderer) stderrInternal(str string, allowNLCR bool) {
+	bytes := []byte(str)
+	runes := []rune{}
+	for len(bytes) > 0 {
+		r, sz := utf8.DecodeRune(bytes)
+		nlcr := r == '\n' || r == '\r'
+		if r >= 32 || r == '\x1b' || nlcr {
+			if r == utf8.RuneError || nlcr && !allowNLCR {
+				runes = append(runes, ' ')
+			} else {
+				runes = append(runes, r)
+			}
+		}
+		bytes = bytes[sz:]
+	}
+	r.queued += string(runes)
+}
+
+func (r *LightRenderer) csi(code string) {
+	r.stderr("\x1b[" + code)
+}
+
+func (r *LightRenderer) flush() {
+	if len(r.queued) > 0 {
+		fmt.Fprint(os.Stderr, r.queued)
+		r.queued = ""
+	}
+}
+
+// Light renderer
+type LightRenderer struct {
+	theme         *ColorTheme
+	mouse         bool
+	forceBlack    bool
+	clearOnExit   bool
+	prevDownTime  time.Time
+	clickY        []int
+	ttyin         *os.File
+	buffer        []byte
+	origState     *terminal.State
+	width         int
+	height        int
+	yoffset       int
+	tabstop       int
+	escDelay      int
+	fullscreen    bool
+	upOneLine     bool
+	queued        string
+	y             int
+	x             int
+	maxHeightFunc func(int) int
+}
+
+type LightWindow struct {
+	renderer *LightRenderer
+	colored  bool
+	border   BorderStyle
+	top      int
+	left     int
+	width    int
+	height   int
+	posx     int
+	posy     int
+	tabstop  int
+	fg       Color
+	bg       Color
+}
+
+func NewLightRenderer(theme *ColorTheme, forceBlack bool, mouse bool, tabstop int, clearOnExit bool, fullscreen bool, maxHeightFunc func(int) int) Renderer {
+	r := LightRenderer{
+		theme:         theme,
+		forceBlack:    forceBlack,
+		mouse:         mouse,
+		clearOnExit:   clearOnExit,
+		ttyin:         openTtyIn(),
+		yoffset:       0,
+		tabstop:       tabstop,
+		fullscreen:    fullscreen,
+		upOneLine:     false,
+		maxHeightFunc: maxHeightFunc}
+	return &r
+}
+
+func (r *LightRenderer) fd() int {
+	return int(r.ttyin.Fd())
+}
+
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	if strings.Contains(os.Getenv("TERM"), "256") {
+		return Dark256
+	}
+	colors, err := exec.Command("tput", "colors").Output()
+	if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 {
+		return Dark256
+	}
+	return Default16
+}
+
+func (r *LightRenderer) findOffset() (row int, col int) {
+	r.csi("6n")
+	r.flush()
+	bytes := []byte{}
+	for tries := 0; tries < offsetPollTries; tries++ {
+		bytes = r.getBytesInternal(bytes, tries > 0)
+		offsets := offsetRegexp.FindSubmatch(bytes)
+		if len(offsets) > 3 {
+			// add anything we skipped over to the input buffer
+			r.buffer = append(r.buffer, offsets[1]...)
+			return atoi(string(offsets[2]), 0) - 1, atoi(string(offsets[3]), 0) - 1
+		}
+	}
+	return -1, -1
+}
+
+func repeat(r rune, times int) string {
+	if times > 0 {
+		return strings.Repeat(string(r), times)
+	}
+	return ""
+}
+
+func atoi(s string, defaultValue int) int {
+	value, err := strconv.Atoi(s)
+	if err != nil {
+		return defaultValue
+	}
+	return value
+}
+
+func (r *LightRenderer) Init() {
+	r.escDelay = atoi(os.Getenv("ESCDELAY"), defaultEscDelay)
+
+	fd := r.fd()
+	origState, err := terminal.GetState(fd)
+	if err != nil {
+		errorExit(err.Error())
+	}
+	r.origState = origState
+	terminal.MakeRaw(fd)
+	r.updateTerminalSize()
+	initTheme(r.theme, r.defaultTheme(), r.forceBlack)
+
+	if r.fullscreen {
+		r.smcup()
+	} else {
+		// We assume that --no-clear is used for repetitive relaunching of fzf.
+		// So we do not clear the lower bottom of the screen.
+		if r.clearOnExit {
+			r.csi("J")
+		}
+		y, x := r.findOffset()
+		r.mouse = r.mouse && y >= 0
+		// When --no-clear is used for repetitive relaunching, there is a small
+		// time frame between fzf processes where the user keystrokes are not
+		// captured by either of fzf process which can cause x offset to be
+		// increased and we're left with unwanted extra new line.
+		if x > 0 && r.clearOnExit {
+			r.upOneLine = true
+			r.makeSpace()
+		}
+		for i := 1; i < r.MaxY(); i++ {
+			r.makeSpace()
+		}
+	}
+
+	if r.mouse {
+		r.csi("?1000h")
+	}
+	r.csi(fmt.Sprintf("%dA", r.MaxY()-1))
+	r.csi("G")
+	r.csi("K")
+	if !r.clearOnExit && !r.fullscreen {
+		r.csi("s")
+	}
+	if !r.fullscreen && r.mouse {
+		r.yoffset, _ = r.findOffset()
+	}
+}
+
+func (r *LightRenderer) makeSpace() {
+	r.stderr("\n")
+	r.csi("G")
+}
+
+func (r *LightRenderer) move(y int, x int) {
+	// w.csi("u")
+	if r.y < y {
+		r.csi(fmt.Sprintf("%dB", y-r.y))
+	} else if r.y > y {
+		r.csi(fmt.Sprintf("%dA", r.y-y))
+	}
+	r.stderr("\r")
+	if x > 0 {
+		r.csi(fmt.Sprintf("%dC", x))
+	}
+	r.y = y
+	r.x = x
+}
+
+func (r *LightRenderer) origin() {
+	r.move(0, 0)
+}
+
+func getEnv(name string, defaultValue int) int {
+	env := os.Getenv(name)
+	if len(env) == 0 {
+		return defaultValue
+	}
+	return atoi(env, defaultValue)
+}
+
+func (r *LightRenderer) updateTerminalSize() {
+	width, height, err := terminal.GetSize(r.fd())
+	if err == nil {
+		r.width = width
+		r.height = r.maxHeightFunc(height)
+	} else {
+		r.width = getEnv("COLUMNS", defaultWidth)
+		r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight))
+	}
+}
+
+func (r *LightRenderer) getch(nonblock bool) (int, bool) {
+	b := make([]byte, 1)
+	fd := r.fd()
+	util.SetNonblock(r.ttyin, nonblock)
+	_, err := util.Read(fd, b)
+	if err != nil {
+		return 0, false
+	}
+	return int(b[0]), true
+}
+
+func (r *LightRenderer) getBytes() []byte {
+	return r.getBytesInternal(r.buffer, false)
+}
+
+func (r *LightRenderer) getBytesInternal(buffer []byte, nonblock bool) []byte {
+	c, ok := r.getch(nonblock)
+	if !nonblock && !ok {
+		r.Close()
+		errorExit("Failed to read " + consoleDevice)
+	}
+
+	retries := 0
+	if c == ESC || nonblock {
+		retries = r.escDelay / escPollInterval
+	}
+	buffer = append(buffer, byte(c))
+
+	pc := c
+	for {
+		c, ok = r.getch(true)
+		if !ok {
+			if retries > 0 {
+				retries--
+				time.Sleep(escPollInterval * time.Millisecond)
+				continue
+			}
+			break
+		} else if c == ESC && pc != c {
+			retries = r.escDelay / escPollInterval
+		} else {
+			retries = 0
+		}
+		buffer = append(buffer, byte(c))
+		pc = c
+	}
+
+	return buffer
+}
+
+func (r *LightRenderer) GetChar() Event {
+	if len(r.buffer) == 0 {
+		r.buffer = r.getBytes()
+	}
+	if len(r.buffer) == 0 {
+		panic("Empty buffer")
+	}
+
+	sz := 1
+	defer func() {
+		r.buffer = r.buffer[sz:]
+	}()
+
+	switch r.buffer[0] {
+	case CtrlC:
+		return Event{CtrlC, 0, nil}
+	case CtrlG:
+		return Event{CtrlG, 0, nil}
+	case CtrlQ:
+		return Event{CtrlQ, 0, nil}
+	case 127:
+		return Event{BSpace, 0, nil}
+	case 0:
+		return Event{CtrlSpace, 0, nil}
+	case 28:
+		return Event{CtrlBackSlash, 0, nil}
+	case 29:
+		return Event{CtrlRightBracket, 0, nil}
+	case 30:
+		return Event{CtrlCaret, 0, nil}
+	case 31:
+		return Event{CtrlSlash, 0, nil}
+	case ESC:
+		ev := r.escSequence(&sz)
+		// Second chance
+		if ev.Type == Invalid {
+			r.buffer = r.getBytes()
+			ev = r.escSequence(&sz)
+		}
+		return ev
+	}
+
+	// CTRL-A ~ CTRL-Z
+	if r.buffer[0] <= CtrlZ {
+		return Event{int(r.buffer[0]), 0, nil}
+	}
+	char, rsz := utf8.DecodeRune(r.buffer)
+	if char == utf8.RuneError {
+		return Event{ESC, 0, nil}
+	}
+	sz = rsz
+	return Event{Rune, char, nil}
+}
+
+func (r *LightRenderer) escSequence(sz *int) Event {
+	if len(r.buffer) < 2 {
+		return Event{ESC, 0, nil}
+	}
+	*sz = 2
+	if r.buffer[1] >= 1 && r.buffer[1] <= 'z'-'a'+1 {
+		return Event{int(CtrlAltA + r.buffer[1] - 1), 0, nil}
+	}
+	alt := false
+	if len(r.buffer) > 2 && r.buffer[1] == ESC {
+		r.buffer = r.buffer[1:]
+		alt = true
+	}
+	switch r.buffer[1] {
+	case ESC:
+		return Event{ESC, 0, nil}
+	case 32:
+		return Event{AltSpace, 0, nil}
+	case 47:
+		return Event{AltSlash, 0, nil}
+	case 98:
+		return Event{AltB, 0, nil}
+	case 100:
+		return Event{AltD, 0, nil}
+	case 102:
+		return Event{AltF, 0, nil}
+	case 127:
+		return Event{AltBS, 0, nil}
+	case 91, 79:
+		if len(r.buffer) < 3 {
+			return Event{Invalid, 0, nil}
+		}
+		*sz = 3
+		switch r.buffer[2] {
+		case 68:
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
+			return Event{Left, 0, nil}
+		case 67:
+			if alt {
+				// Ugh..
+				return Event{AltRight, 0, nil}
+			}
+			return Event{Right, 0, nil}
+		case 66:
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
+			return Event{Down, 0, nil}
+		case 65:
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
+			return Event{Up, 0, nil}
+		case 90:
+			return Event{BTab, 0, nil}
+		case 72:
+			return Event{Home, 0, nil}
+		case 70:
+			return Event{End, 0, nil}
+		case 77:
+			return r.mouseSequence(sz)
+		case 80:
+			return Event{F1, 0, nil}
+		case 81:
+			return Event{F2, 0, nil}
+		case 82:
+			return Event{F3, 0, nil}
+		case 83:
+			return Event{F4, 0, nil}
+		case 49, 50, 51, 52, 53, 54:
+			if len(r.buffer) < 4 {
+				return Event{Invalid, 0, nil}
+			}
+			*sz = 4
+			switch r.buffer[2] {
+			case 50:
+				if len(r.buffer) == 5 && r.buffer[4] == 126 {
+					*sz = 5
+					switch r.buffer[3] {
+					case 48:
+						return Event{F9, 0, nil}
+					case 49:
+						return Event{F10, 0, nil}
+					case 51:
+						return Event{F11, 0, nil}
+					case 52:
+						return Event{F12, 0, nil}
+					}
+				}
+				// Bracketed paste mode: \e[200~ ... \e[201~
+				if r.buffer[3] == '0' && (r.buffer[4] == '0' || r.buffer[4] == '1') && r.buffer[5] == '~' {
+					// Immediately discard the sequence from the buffer and reread input
+					r.buffer = r.buffer[6:]
+					*sz = 0
+					return r.GetChar()
+				}
+				return Event{Invalid, 0, nil} // INS
+			case 51:
+				return Event{Del, 0, nil}
+			case 52:
+				return Event{End, 0, nil}
+			case 53:
+				return Event{PgUp, 0, nil}
+			case 54:
+				return Event{PgDn, 0, nil}
+			case 49:
+				switch r.buffer[3] {
+				case 126:
+					return Event{Home, 0, nil}
+				case 53, 55, 56, 57:
+					if len(r.buffer) == 5 && r.buffer[4] == 126 {
+						*sz = 5
+						switch r.buffer[3] {
+						case 53:
+							return Event{F5, 0, nil}
+						case 55:
+							return Event{F6, 0, nil}
+						case 56:
+							return Event{F7, 0, nil}
+						case 57:
+							return Event{F8, 0, nil}
+						}
+					}
+					return Event{Invalid, 0, nil}
+				case ';':
+					if len(r.buffer) != 6 {
+						return Event{Invalid, 0, nil}
+					}
+					*sz = 6
+					switch r.buffer[4] {
+					case '2', '5':
+						switch r.buffer[5] {
+						case 'A':
+							return Event{SUp, 0, nil}
+						case 'B':
+							return Event{SDown, 0, nil}
+						case 'C':
+							return Event{SRight, 0, nil}
+						case 'D':
+							return Event{SLeft, 0, nil}
+						}
+					} // r.buffer[4]
+				} // r.buffer[3]
+			} // r.buffer[2]
+		} // r.buffer[2]
+	} // r.buffer[1]
+	if r.buffer[1] >= 'a' && r.buffer[1] <= 'z' {
+		return Event{AltA + int(r.buffer[1]) - 'a', 0, nil}
+	}
+	if r.buffer[1] >= '0' && r.buffer[1] <= '9' {
+		return Event{Alt0 + int(r.buffer[1]) - '0', 0, nil}
+	}
+	return Event{Invalid, 0, nil}
+}
+
+func (r *LightRenderer) mouseSequence(sz *int) Event {
+	if len(r.buffer) < 6 || !r.mouse {
+		return Event{Invalid, 0, nil}
+	}
+	*sz = 6
+	switch r.buffer[3] {
+	case 32, 34, 36, 40, 48, // mouse-down / shift / cmd / ctrl
+		35, 39, 43, 51: // mouse-up / shift / cmd / ctrl
+		mod := r.buffer[3] >= 36
+		left := r.buffer[3] == 32
+		down := r.buffer[3]%2 == 0
+		x := int(r.buffer[4] - 33)
+		y := int(r.buffer[5]-33) - r.yoffset
+		double := false
+		if down {
+			now := time.Now()
+			if !left { // Right double click is not allowed
+				r.clickY = []int{}
+			} else if now.Sub(r.prevDownTime) < doubleClickDuration {
+				r.clickY = append(r.clickY, y)
+			} else {
+				r.clickY = []int{y}
+			}
+			r.prevDownTime = now
+		} else {
+			if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
+				time.Since(r.prevDownTime) < doubleClickDuration {
+				double = true
+			}
+		}
+
+		return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
+	case 96, 100, 104, 112, // scroll-up / shift / cmd / ctrl
+		97, 101, 105, 113: // scroll-down / shift / cmd / ctrl
+		mod := r.buffer[3] >= 100
+		s := 1 - int(r.buffer[3]%2)*2
+		x := int(r.buffer[4] - 33)
+		y := int(r.buffer[5]-33) - r.yoffset
+		return Event{Mouse, 0, &MouseEvent{y, x, s, false, false, false, mod}}
+	}
+	return Event{Invalid, 0, nil}
+}
+
+func (r *LightRenderer) smcup() {
+	r.csi("?1049h")
+}
+
+func (r *LightRenderer) rmcup() {
+	r.csi("?1049l")
+}
+
+func (r *LightRenderer) Pause(clear bool) {
+	terminal.Restore(r.fd(), r.origState)
+	if clear {
+		if r.fullscreen {
+			r.rmcup()
+		} else {
+			r.smcup()
+			r.csi("H")
+		}
+		r.flush()
+	}
+}
+
+func (r *LightRenderer) Resume(clear bool) {
+	terminal.MakeRaw(r.fd())
+	if clear {
+		if r.fullscreen {
+			r.smcup()
+		} else {
+			r.rmcup()
+		}
+		r.flush()
+	} else if !r.fullscreen && r.mouse {
+		// NOTE: Resume(false) is only called on SIGCONT after SIGSTOP.
+		// And It's highly likely that the offset we obtained at the beginning will
+		// no longer be correct, so we simply disable mouse input.
+		r.csi("?1000l")
+		r.mouse = false
+	}
+}
+
+func (r *LightRenderer) Clear() {
+	if r.fullscreen {
+		r.csi("H")
+	}
+	// r.csi("u")
+	r.origin()
+	r.csi("J")
+	r.flush()
+}
+
+func (r *LightRenderer) RefreshWindows(windows []Window) {
+	r.flush()
+}
+
+func (r *LightRenderer) Refresh() {
+	r.updateTerminalSize()
+}
+
+func (r *LightRenderer) Close() {
+	// r.csi("u")
+	if r.clearOnExit {
+		if r.fullscreen {
+			r.rmcup()
+		} else {
+			r.origin()
+			if r.upOneLine {
+				r.csi("A")
+			}
+			r.csi("J")
+		}
+	} else if !r.fullscreen {
+		r.csi("u")
+	}
+	if r.mouse {
+		r.csi("?1000l")
+	}
+	r.flush()
+	terminal.Restore(r.fd(), r.origState)
+}
+
+func (r *LightRenderer) MaxX() int {
+	return r.width
+}
+
+func (r *LightRenderer) MaxY() int {
+	return r.height
+}
+
+func (r *LightRenderer) DoesAutoWrap() bool {
+	return false
+}
+
+func (r *LightRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
+	w := &LightWindow{
+		renderer: r,
+		colored:  r.theme != nil,
+		border:   borderStyle,
+		top:      top,
+		left:     left,
+		width:    width,
+		height:   height,
+		tabstop:  r.tabstop,
+		fg:       colDefault,
+		bg:       colDefault}
+	if r.theme != nil {
+		if preview {
+			w.fg = r.theme.PreviewFg
+			w.bg = r.theme.PreviewBg
+		} else {
+			w.fg = r.theme.Fg
+			w.bg = r.theme.Bg
+		}
+	}
+	w.drawBorder()
+	return w
+}
+
+func (w *LightWindow) drawBorder() {
+	switch w.border.shape {
+	case BorderAround:
+		w.drawBorderAround()
+	case BorderHorizontal:
+		w.drawBorderHorizontal()
+	}
+}
+
+func (w *LightWindow) drawBorderHorizontal() {
+	w.Move(0, 0)
+	w.CPrint(ColBorder, AttrRegular, repeat(w.border.horizontal, w.width))
+	w.Move(w.height-1, 0)
+	w.CPrint(ColBorder, AttrRegular, repeat(w.border.horizontal, w.width))
+}
+
+func (w *LightWindow) drawBorderAround() {
+	w.Move(0, 0)
+	w.CPrint(ColPreviewBorder, AttrRegular,
+		string(w.border.topLeft)+repeat(w.border.horizontal, w.width-2)+string(w.border.topRight))
+	for y := 1; y < w.height-1; y++ {
+		w.Move(y, 0)
+		w.CPrint(ColPreviewBorder, AttrRegular, string(w.border.vertical))
+		w.CPrint(ColPreviewBorder, AttrRegular, repeat(' ', w.width-2))
+		w.CPrint(ColPreviewBorder, AttrRegular, string(w.border.vertical))
+	}
+	w.Move(w.height-1, 0)
+	w.CPrint(ColPreviewBorder, AttrRegular,
+		string(w.border.bottomLeft)+repeat(w.border.horizontal, w.width-2)+string(w.border.bottomRight))
+}
+
+func (w *LightWindow) csi(code string) {
+	w.renderer.csi(code)
+}
+
+func (w *LightWindow) stderrInternal(str string, allowNLCR bool) {
+	w.renderer.stderrInternal(str, allowNLCR)
+}
+
+func (w *LightWindow) Top() int {
+	return w.top
+}
+
+func (w *LightWindow) Left() int {
+	return w.left
+}
+
+func (w *LightWindow) Width() int {
+	return w.width
+}
+
+func (w *LightWindow) Height() int {
+	return w.height
+}
+
+func (w *LightWindow) Refresh() {
+}
+
+func (w *LightWindow) Close() {
+}
+
+func (w *LightWindow) X() int {
+	return w.posx
+}
+
+func (w *LightWindow) Y() int {
+	return w.posy
+}
+
+func (w *LightWindow) Enclose(y int, x int) bool {
+	return x >= w.left && x < (w.left+w.width) &&
+		y >= w.top && y < (w.top+w.height)
+}
+
+func (w *LightWindow) Move(y int, x int) {
+	w.posx = x
+	w.posy = y
+
+	w.renderer.move(w.Top()+y, w.Left()+x)
+}
+
+func (w *LightWindow) MoveAndClear(y int, x int) {
+	w.Move(y, x)
+	// We should not delete preview window on the right
+	// csi("K")
+	w.Print(repeat(' ', w.width-x))
+	w.Move(y, x)
+}
+
+func attrCodes(attr Attr) []string {
+	codes := []string{}
+	if (attr & Bold) > 0 {
+		codes = append(codes, "1")
+	}
+	if (attr & Dim) > 0 {
+		codes = append(codes, "2")
+	}
+	if (attr & Italic) > 0 {
+		codes = append(codes, "3")
+	}
+	if (attr & Underline) > 0 {
+		codes = append(codes, "4")
+	}
+	if (attr & Blink) > 0 {
+		codes = append(codes, "5")
+	}
+	if (attr & Reverse) > 0 {
+		codes = append(codes, "7")
+	}
+	return codes
+}
+
+func colorCodes(fg Color, bg Color) []string {
+	codes := []string{}
+	appendCode := func(c Color, offset int) {
+		if c == colDefault {
+			return
+		}
+		if c.is24() {
+			r := (c >> 16) & 0xff
+			g := (c >> 8) & 0xff
+			b := (c) & 0xff
+			codes = append(codes, fmt.Sprintf("%d;2;%d;%d;%d", 38+offset, r, g, b))
+		} else if c >= colBlack && c <= colWhite {
+			codes = append(codes, fmt.Sprintf("%d", int(c)+30+offset))
+		} else if c > colWhite && c < 16 {
+			codes = append(codes, fmt.Sprintf("%d", int(c)+90+offset-8))
+		} else if c >= 16 && c < 256 {
+			codes = append(codes, fmt.Sprintf("%d;5;%d", 38+offset, c))
+		}
+	}
+	appendCode(fg, 0)
+	appendCode(bg, 10)
+	return codes
+}
+
+func (w *LightWindow) csiColor(fg Color, bg Color, attr Attr) bool {
+	codes := append(attrCodes(attr), colorCodes(fg, bg)...)
+	w.csi(";" + strings.Join(codes, ";") + "m")
+	return len(codes) > 0
+}
+
+func (w *LightWindow) Print(text string) {
+	w.cprint2(colDefault, w.bg, AttrRegular, text)
+}
+
+func cleanse(str string) string {
+	return strings.Replace(str, "\x1b", "", -1)
+}
+
+func (w *LightWindow) CPrint(pair ColorPair, attr Attr, text string) {
+	if !w.colored {
+		w.csiColor(colDefault, colDefault, attrFor(pair, attr))
+	} else {
+		w.csiColor(pair.Fg(), pair.Bg(), attr)
+	}
+	w.stderrInternal(cleanse(text), false)
+	w.csi("m")
+}
+
+func (w *LightWindow) cprint2(fg Color, bg Color, attr Attr, text string) {
+	if w.csiColor(fg, bg, attr) {
+		defer w.csi("m")
+	}
+	w.stderrInternal(cleanse(text), false)
+}
+
+type wrappedLine struct {
+	text         string
+	displayWidth int
+}
+
+func wrapLine(input string, prefixLength int, max int, tabstop int) []wrappedLine {
+	lines := []wrappedLine{}
+	width := 0
+	line := ""
+	for _, r := range input {
+		w := util.Max(util.RuneWidth(r, prefixLength+width, 8), 1)
+		width += w
+		str := string(r)
+		if r == '\t' {
+			str = repeat(' ', w)
+		}
+		if prefixLength+width <= max {
+			line += str
+		} else {
+			lines = append(lines, wrappedLine{string(line), width - w})
+			line = str
+			prefixLength = 0
+			width = util.RuneWidth(r, prefixLength, 8)
+		}
+	}
+	lines = append(lines, wrappedLine{string(line), width})
+	return lines
+}
+
+func (w *LightWindow) fill(str string, onMove func()) FillReturn {
+	allLines := strings.Split(str, "\n")
+	for i, line := range allLines {
+		lines := wrapLine(line, w.posx, w.width, w.tabstop)
+		for j, wl := range lines {
+			if w.posx >= w.Width()-1 && wl.displayWidth == 0 {
+				if w.posy < w.height-1 {
+					w.Move(w.posy+1, 0)
+				}
+				return FillNextLine
+			}
+			w.stderrInternal(wl.text, false)
+			w.posx += wl.displayWidth
+
+			// Wrap line
+			if j < len(lines)-1 || i < len(allLines)-1 {
+				if w.posy+1 >= w.height {
+					return FillSuspend
+				}
+				w.MoveAndClear(w.posy, w.posx)
+				w.Move(w.posy+1, 0)
+				onMove()
+			}
+		}
+	}
+	return FillContinue
+}
+
+func (w *LightWindow) setBg() {
+	if w.bg != colDefault {
+		w.csiColor(colDefault, w.bg, AttrRegular)
+	}
+}
+
+func (w *LightWindow) Fill(text string) FillReturn {
+	w.Move(w.posy, w.posx)
+	w.setBg()
+	return w.fill(text, w.setBg)
+}
+
+func (w *LightWindow) CFill(fg Color, bg Color, attr Attr, text string) FillReturn {
+	w.Move(w.posy, w.posx)
+	if fg == colDefault {
+		fg = w.fg
+	}
+	if bg == colDefault {
+		bg = w.bg
+	}
+	if w.csiColor(fg, bg, attr) {
+		defer w.csi("m")
+		return w.fill(text, func() { w.csiColor(fg, bg, attr) })
+	}
+	return w.fill(text, w.setBg)
+}
+
+func (w *LightWindow) FinishFill() {
+	w.MoveAndClear(w.posy, w.posx)
+	for y := w.posy + 1; y < w.height; y++ {
+		w.MoveAndClear(y, 0)
+	}
+}
+
+func (w *LightWindow) Erase() {
+	w.drawBorder()
+	// We don't erase the window here to avoid flickering during scroll
+	w.Move(0, 0)
+}

src/tui/ncurses.go

@@ -1,449 +0,0 @@
-// +build !windows
-// +build !tcell
-
-package tui
-
-/*
-#include <ncurses.h>
-#include <locale.h>
-#cgo !static LDFLAGS: -lncurses
-#cgo static LDFLAGS: -l:libncursesw.a -l:libtinfo.a -l:libgpm.a -ldl
-#cgo android static LDFLAGS: -l:libncurses.a -fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch
-
-FILE* c_tty() {
-	return fopen("/dev/tty", "r");
-}
-
-SCREEN* c_newterm(FILE* tty) {
-	return newterm(NULL, stderr, tty);
-}
-*/
-import "C"
-
-import (
-	"fmt"
-	"os"
-	"strings"
-	"time"
-	"unicode/utf8"
-)
-
-type ColorPair int16
-type Attr C.int
-type WindowImpl C.WINDOW
-
-const (
-	Bold      Attr = C.A_BOLD
-	Dim            = C.A_DIM
-	Blink          = C.A_BLINK
-	Reverse        = C.A_REVERSE
-	Underline      = C.A_UNDERLINE
-)
-
-const (
-	AttrRegular Attr = 0
-)
-
-// Pallete
-const (
-	ColDefault ColorPair = iota
-	ColNormal
-	ColPrompt
-	ColMatch
-	ColCurrent
-	ColCurrentMatch
-	ColSpinner
-	ColInfo
-	ColCursor
-	ColSelected
-	ColHeader
-	ColBorder
-	ColUser // Should be the last entry
-)
-
-var (
-	_screen   *C.SCREEN
-	_colorMap map[int]ColorPair
-	_colorFn  func(ColorPair, Attr) C.int
-)
-
-func init() {
-	_colorMap = make(map[int]ColorPair)
-}
-
-func (a Attr) Merge(b Attr) Attr {
-	return a | b
-}
-
-func DefaultTheme() *ColorTheme {
-	if C.tigetnum(C.CString("colors")) >= 256 {
-		return Dark256
-	}
-	return Default16
-}
-
-func Init(theme *ColorTheme, black bool, mouse bool) {
-	C.setlocale(C.LC_ALL, C.CString(""))
-	tty := C.c_tty()
-	if tty == nil {
-		fmt.Println("Failed to open /dev/tty")
-		os.Exit(2)
-	}
-	_screen = C.c_newterm(tty)
-	if _screen == nil {
-		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
-		os.Exit(2)
-	}
-	C.set_term(_screen)
-	if mouse {
-		C.mousemask(C.ALL_MOUSE_EVENTS, nil)
-		C.mouseinterval(0)
-	}
-	C.noecho()
-	C.raw() // stty dsusp undef
-	C.nonl()
-	C.keypad(C.stdscr, true)
-	C.set_escdelay(100)
-	C.timeout(100) // ESCDELAY 100ms + timeout 100ms
-
-	_color = theme != nil
-	if _color {
-		C.start_color()
-		InitTheme(theme, black)
-		initPairs(theme)
-		C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal))))
-		_colorFn = attrColored
-	} else {
-		_colorFn = attrMono
-	}
-}
-
-func initPairs(theme *ColorTheme) {
-	C.assume_default_colors(C.int(theme.Fg), C.int(theme.Bg))
-	initPair := func(group ColorPair, fg Color, bg Color) {
-		C.init_pair(C.short(group), C.short(fg), C.short(bg))
-	}
-	initPair(ColNormal, theme.Fg, theme.Bg)
-	initPair(ColPrompt, theme.Prompt, theme.Bg)
-	initPair(ColMatch, theme.Match, theme.Bg)
-	initPair(ColCurrent, theme.Current, theme.DarkBg)
-	initPair(ColCurrentMatch, theme.CurrentMatch, theme.DarkBg)
-	initPair(ColSpinner, theme.Spinner, theme.Bg)
-	initPair(ColInfo, theme.Info, theme.Bg)
-	initPair(ColCursor, theme.Cursor, theme.DarkBg)
-	initPair(ColSelected, theme.Selected, theme.DarkBg)
-	initPair(ColHeader, theme.Header, theme.Bg)
-	initPair(ColBorder, theme.Border, theme.Bg)
-}
-
-func Pause() {
-	C.endwin()
-}
-
-func Resume() bool {
-	return false
-}
-
-func Close() {
-	C.endwin()
-	C.delscreen(_screen)
-}
-
-func NewWindow(top int, left int, width int, height int, border bool) *Window {
-	win := C.newwin(C.int(height), C.int(width), C.int(top), C.int(left))
-	if _color {
-		C.wbkgd(win, C.chtype(C.COLOR_PAIR(C.int(ColNormal))))
-	}
-	if border {
-		attr := _colorFn(ColBorder, 0)
-		C.wattron(win, attr)
-		C.box(win, 0, 0)
-		C.wattroff(win, attr)
-	}
-
-	return &Window{
-		impl:   (*WindowImpl)(win),
-		Top:    top,
-		Left:   left,
-		Width:  width,
-		Height: height,
-	}
-}
-
-func attrColored(pair ColorPair, a Attr) C.int {
-	var attr C.int
-	if pair > 0 {
-		attr = C.COLOR_PAIR(C.int(pair))
-	}
-	return attr | C.int(a)
-}
-
-func attrMono(pair ColorPair, a Attr) C.int {
-	var attr C.int
-	switch pair {
-	case ColCurrent:
-		attr = C.A_REVERSE
-	case ColMatch:
-		attr = C.A_UNDERLINE
-	case ColCurrentMatch:
-		attr = C.A_UNDERLINE | C.A_REVERSE
-	}
-	if C.int(a)&C.A_BOLD == C.A_BOLD {
-		attr = attr | C.A_BOLD
-	}
-	return attr
-}
-
-func MaxX() int {
-	return int(C.COLS)
-}
-
-func MaxY() int {
-	return int(C.LINES)
-}
-
-func (w *Window) win() *C.WINDOW {
-	return (*C.WINDOW)(w.impl)
-}
-
-func (w *Window) Close() {
-	C.delwin(w.win())
-}
-
-func (w *Window) Enclose(y int, x int) bool {
-	return bool(C.wenclose(w.win(), C.int(y), C.int(x)))
-}
-
-func (w *Window) Move(y int, x int) {
-	C.wmove(w.win(), C.int(y), C.int(x))
-}
-
-func (w *Window) MoveAndClear(y int, x int) {
-	w.Move(y, x)
-	C.wclrtoeol(w.win())
-}
-
-func (w *Window) Print(text string) {
-	C.waddstr(w.win(), C.CString(strings.Map(func(r rune) rune {
-		if r < 32 {
-			return -1
-		}
-		return r
-	}, text)))
-}
-
-func (w *Window) CPrint(pair ColorPair, a Attr, text string) {
-	attr := _colorFn(pair, a)
-	C.wattron(w.win(), attr)
-	w.Print(text)
-	C.wattroff(w.win(), attr)
-}
-
-func Clear() {
-	C.clear()
-	C.endwin()
-}
-
-func Refresh() {
-	C.refresh()
-}
-
-func (w *Window) Erase() {
-	C.werase(w.win())
-}
-
-func (w *Window) Fill(str string) bool {
-	return C.waddstr(w.win(), C.CString(str)) == C.OK
-}
-
-func (w *Window) CFill(str string, fg Color, bg Color, a Attr) bool {
-	attr := _colorFn(PairFor(fg, bg), a)
-	C.wattron(w.win(), attr)
-	ret := w.Fill(str)
-	C.wattroff(w.win(), attr)
-	return ret
-}
-
-func RefreshWindows(windows []*Window) {
-	for _, w := range windows {
-		C.wnoutrefresh(w.win())
-	}
-	C.doupdate()
-}
-
-func PairFor(fg Color, bg Color) ColorPair {
-	key := (int(fg) << 8) + int(bg)
-	if found, prs := _colorMap[key]; prs {
-		return found
-	}
-
-	id := ColorPair(len(_colorMap) + int(ColUser))
-	C.init_pair(C.short(id), C.short(fg), C.short(bg))
-	_colorMap[key] = id
-	return id
-}
-
-func consume(expects ...rune) bool {
-	for _, r := range expects {
-		if int(C.getch()) != int(r) {
-			return false
-		}
-	}
-	return true
-}
-
-func escSequence() Event {
-	// nodelay is not thread-safe (e.g. <ESC><CTRL-P>)
-	// C.nodelay(C.stdscr, true)
-	c := C.getch()
-	switch c {
-	case C.ERR:
-		return Event{ESC, 0, nil}
-	case CtrlM:
-		return Event{AltEnter, 0, nil}
-	case '/':
-		return Event{AltSlash, 0, nil}
-	case ' ':
-		return Event{AltSpace, 0, nil}
-	case 127, C.KEY_BACKSPACE:
-		return Event{AltBS, 0, nil}
-	case '[':
-		// Bracketed paste mode (printf "\e[?2004h")
-		// \e[200~ TEXT \e[201~
-		if consume('2', '0', '0', '~') {
-			return Event{Invalid, 0, nil}
-		}
-	}
-	if c >= 'a' && c <= 'z' {
-		return Event{AltA + int(c) - 'a', 0, nil}
-	}
-
-	if c >= '0' && c <= '9' {
-		return Event{Alt0 + int(c) - '0', 0, nil}
-	}
-
-	// Don't care. Ignore the rest.
-	for ; c != C.ERR; c = C.getch() {
-	}
-	return Event{Invalid, 0, nil}
-}
-
-func GetChar() Event {
-	c := C.getch()
-	switch c {
-	case C.ERR:
-		return Event{Invalid, 0, nil}
-	case C.KEY_UP:
-		return Event{Up, 0, nil}
-	case C.KEY_DOWN:
-		return Event{Down, 0, nil}
-	case C.KEY_LEFT:
-		return Event{Left, 0, nil}
-	case C.KEY_RIGHT:
-		return Event{Right, 0, nil}
-	case C.KEY_HOME:
-		return Event{Home, 0, nil}
-	case C.KEY_END:
-		return Event{End, 0, nil}
-	case C.KEY_BACKSPACE:
-		return Event{BSpace, 0, nil}
-	case C.KEY_F0 + 1:
-		return Event{F1, 0, nil}
-	case C.KEY_F0 + 2:
-		return Event{F2, 0, nil}
-	case C.KEY_F0 + 3:
-		return Event{F3, 0, nil}
-	case C.KEY_F0 + 4:
-		return Event{F4, 0, nil}
-	case C.KEY_F0 + 5:
-		return Event{F5, 0, nil}
-	case C.KEY_F0 + 6:
-		return Event{F6, 0, nil}
-	case C.KEY_F0 + 7:
-		return Event{F7, 0, nil}
-	case C.KEY_F0 + 8:
-		return Event{F8, 0, nil}
-	case C.KEY_F0 + 9:
-		return Event{F9, 0, nil}
-	case C.KEY_F0 + 10:
-		return Event{F10, 0, nil}
-	case C.KEY_F0 + 11:
-		return Event{F11, 0, nil}
-	case C.KEY_F0 + 12:
-		return Event{F12, 0, nil}
-	case C.KEY_DC:
-		return Event{Del, 0, nil}
-	case C.KEY_PPAGE:
-		return Event{PgUp, 0, nil}
-	case C.KEY_NPAGE:
-		return Event{PgDn, 0, nil}
-	case C.KEY_BTAB:
-		return Event{BTab, 0, nil}
-	case C.KEY_ENTER:
-		return Event{CtrlM, 0, nil}
-	case C.KEY_SLEFT:
-		return Event{SLeft, 0, nil}
-	case C.KEY_SRIGHT:
-		return Event{SRight, 0, nil}
-	case C.KEY_MOUSE:
-		var me C.MEVENT
-		if C.getmouse(&me) != C.ERR {
-			mod := ((me.bstate & C.BUTTON_SHIFT) | (me.bstate & C.BUTTON_CTRL) | (me.bstate & C.BUTTON_ALT)) > 0
-			x := int(me.x)
-			y := int(me.y)
-			/* Cannot use BUTTON1_DOUBLE_CLICKED due to mouseinterval(0) */
-			if (me.bstate & C.BUTTON1_PRESSED) > 0 {
-				now := time.Now()
-				if now.Sub(_prevDownTime) < doubleClickDuration {
-					_clickY = append(_clickY, y)
-				} else {
-					_clickY = []int{y}
-					_prevDownTime = now
-				}
-				return Event{Mouse, 0, &MouseEvent{y, x, 0, true, false, mod}}
-			} else if (me.bstate & C.BUTTON1_RELEASED) > 0 {
-				double := false
-				if len(_clickY) > 1 && _clickY[0] == _clickY[1] &&
-					time.Now().Sub(_prevDownTime) < doubleClickDuration {
-					double = true
-				}
-				return Event{Mouse, 0, &MouseEvent{y, x, 0, false, double, mod}}
-			} else if (me.bstate&0x8000000) > 0 || (me.bstate&0x80) > 0 {
-				return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
-			} else if (me.bstate & C.BUTTON4_PRESSED) > 0 {
-				return Event{Mouse, 0, &MouseEvent{y, x, 1, false, false, mod}}
-			}
-		}
-		return Event{Invalid, 0, nil}
-	case C.KEY_RESIZE:
-		return Event{Invalid, 0, nil}
-	case ESC:
-		return escSequence()
-	case 127:
-		return Event{BSpace, 0, nil}
-	}
-	// CTRL-A ~ CTRL-Z
-	if c >= CtrlA && c <= CtrlZ {
-		return Event{int(c), 0, nil}
-	}
-
-	// Multi-byte character
-	buffer := []byte{byte(c)}
-	for {
-		r, _ := utf8.DecodeRune(buffer)
-		if r != utf8.RuneError {
-			return Event{Rune, r, nil}
-		}
-
-		c := C.getch()
-		if c == C.ERR {
-			break
-		}
-		if c >= C.KEY_CODE_YES {
-			C.ungetch(c)
-			break
-		}
-		buffer = append(buffer, byte(c))
-	}
-	return Event{Invalid, 0, nil}
-}

src/tui/tcell.go

@@ -3,44 +3,72 @@
 package tui
 
 import (
+	"os"
 	"time"
 	"unicode/utf8"
 
-	"fmt"
-	"os"
-
 	"runtime"
 
 	"github.com/gdamore/tcell"
 	"github.com/gdamore/tcell/encoding"
 
-	"github.com/junegunn/go-runewidth"
+	"github.com/mattn/go-runewidth"
 )
 
-type ColorPair [2]Color
+func HasFullscreenRenderer() bool {
-
+	return true
-func (p ColorPair) fg() Color {
-	return p[0]
-}
-
-func (p ColorPair) bg() Color {
-	return p[1]
 }
 
 func (p ColorPair) style() tcell.Style {
 	style := tcell.StyleDefault
-	return style.Foreground(tcell.Color(p.fg())).Background(tcell.Color(p.bg()))
+	return style.Foreground(tcell.Color(p.Fg())).Background(tcell.Color(p.Bg()))
 }
 
 type Attr tcell.Style
 
-type WindowTcell struct {
+type TcellWindow struct {
-	LastX      int
+	color       bool
-	LastY      int
+	top         int
-	MoveCursor bool
+	left        int
-	Border     bool
+	width       int
+	height      int
+	normal      ColorPair
+	lastX       int
+	lastY       int
+	moveCursor  bool
+	borderStyle BorderStyle
+}
+
+func (w *TcellWindow) Top() int {
+	return w.top
+}
+
+func (w *TcellWindow) Left() int {
+	return w.left
+}
+
+func (w *TcellWindow) Width() int {
+	return w.width
+}
+
+func (w *TcellWindow) Height() int {
+	return w.height
+}
+
+func (w *TcellWindow) Refresh() {
+	if w.moveCursor {
+		_screen.ShowCursor(w.left+w.lastX, w.top+w.lastY)
+		w.moveCursor = false
+	}
+	w.lastX = 0
+	w.lastY = 0
+
+	w.drawBorder()
+}
+
+func (w *TcellWindow) FinishFill() {
+	// NO-OP
 }
-type WindowImpl WindowTcell
 
 const (
 	Bold      Attr = Attr(tcell.AttrBold)
@@ -48,39 +76,20 @@ const (
 	Blink          = Attr(tcell.AttrBlink)
 	Reverse        = Attr(tcell.AttrReverse)
 	Underline      = Attr(tcell.AttrUnderline)
+	Italic         = Attr(tcell.AttrNone) // Not supported
 )
 
 const (
 	AttrRegular Attr = 0
 )
 
-var (
+func (r *FullscreenRenderer) defaultTheme() *ColorTheme {
-	ColDefault      = ColorPair{colDefault, colDefault}
-	ColNormal       ColorPair
-	ColPrompt       ColorPair
-	ColMatch        ColorPair
-	ColCurrent      ColorPair
-	ColCurrentMatch ColorPair
-	ColSpinner      ColorPair
-	ColInfo         ColorPair
-	ColCursor       ColorPair
-	ColSelected     ColorPair
-	ColHeader       ColorPair
-	ColBorder       ColorPair
-	ColUser         ColorPair
-)
-
-func DefaultTheme() *ColorTheme {
 	if _screen.Colors() >= 256 {
 		return Dark256
 	}
 	return Default16
 }
 
-func PairFor(fg Color, bg Color) ColorPair {
-	return [2]Color{fg, bg}
-}
-
 var (
 	_colorToAttribute = []tcell.Color{
 		tcell.ColorBlack,
@@ -110,20 +119,17 @@ func (a Attr) Merge(b Attr) Attr {
 
 var (
 	_screen tcell.Screen
-	_mouse  bool
 )
 
-func initScreen() {
+func (r *FullscreenRenderer) initScreen() {
 	s, e := tcell.NewScreen()
 	if e != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", e)
+		errorExit(e.Error())
-		os.Exit(2)
 	}
 	if e = s.Init(); e != nil {
-		fmt.Fprintf(os.Stderr, "%v\n", e)
+		errorExit(e.Error())
-		os.Exit(2)
 	}
-	if _mouse {
+	if r.mouse {
 		s.EnableMouse()
 	} else {
 		s.DisableMouse()
@@ -131,59 +137,52 @@ func initScreen() {
 	_screen = s
 }
 
-func Init(theme *ColorTheme, black bool, mouse bool) {
+func (r *FullscreenRenderer) Init() {
+	if os.Getenv("TERM") == "cygwin" {
+		os.Setenv("TERM", "")
+	}
 	encoding.Register()
 
-	_mouse = mouse
+	r.initScreen()
-	initScreen()
+	initTheme(r.theme, r.defaultTheme(), r.forceBlack)
-
-	_color = theme != nil
-	if _color {
-		InitTheme(theme, black)
-	} else {
-		theme = DefaultTheme()
-	}
-	ColNormal = ColorPair{theme.Fg, theme.Bg}
-	ColPrompt = ColorPair{theme.Prompt, theme.Bg}
-	ColMatch = ColorPair{theme.Match, theme.Bg}
-	ColCurrent = ColorPair{theme.Current, theme.DarkBg}
-	ColCurrentMatch = ColorPair{theme.CurrentMatch, theme.DarkBg}
-	ColSpinner = ColorPair{theme.Spinner, theme.Bg}
-	ColInfo = ColorPair{theme.Info, theme.Bg}
-	ColCursor = ColorPair{theme.Cursor, theme.DarkBg}
-	ColSelected = ColorPair{theme.Selected, theme.DarkBg}
-	ColHeader = ColorPair{theme.Header, theme.Bg}
-	ColBorder = ColorPair{theme.Border, theme.Bg}
 }
 
-func MaxX() int {
+func (r *FullscreenRenderer) MaxX() int {
 	ncols, _ := _screen.Size()
 	return int(ncols)
 }
 
-func MaxY() int {
+func (r *FullscreenRenderer) MaxY() int {
 	_, nlines := _screen.Size()
 	return int(nlines)
 }
 
-func (w *Window) win() *WindowTcell {
+func (w *TcellWindow) X() int {
-	return (*WindowTcell)(w.impl)
+	return w.lastX
 }
 
-func Clear() {
+func (w *TcellWindow) Y() int {
+	return w.lastY
+}
+
+func (r *FullscreenRenderer) DoesAutoWrap() bool {
+	return false
+}
+
+func (r *FullscreenRenderer) Clear() {
 	_screen.Sync()
 	_screen.Clear()
 }
 
-func Refresh() {
+func (r *FullscreenRenderer) Refresh() {
 	// noop
 }
 
-func GetChar() Event {
+func (r *FullscreenRenderer) GetChar() Event {
 	ev := _screen.PollEvent()
 	switch ev := ev.(type) {
 	case *tcell.EventResize:
-		return Event{Invalid, 0, nil}
+		return Event{Resize, 0, nil}
 
 	// process mouse events:
 	case *tcell.EventMouse:
@@ -191,102 +190,132 @@ func GetChar() Event {
 		button := ev.Buttons()
 		mod := ev.Modifiers() != 0
 		if button&tcell.WheelDown != 0 {
-			return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, false, mod}}
 		} else if button&tcell.WheelUp != 0 {
-			return Event{Mouse, 0, &MouseEvent{y, x, +1, false, false, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, +1, false, false, false, mod}}
 		} else if runtime.GOOS != "windows" {
 			// double and single taps on Windows don't quite work due to
 			// the console acting on the events and not allowing us
 			// to consume them.
 
-			down := button&tcell.Button1 != 0 // left
+			left := button&tcell.Button1 != 0
+			down := left || button&tcell.Button3 != 0
 			double := false
 			if down {
 				now := time.Now()
-				if now.Sub(_prevDownTime) < doubleClickDuration {
+				if !left {
-					_clickY = append(_clickY, x)
+					r.clickY = []int{}
+				} else if now.Sub(r.prevDownTime) < doubleClickDuration {
+					r.clickY = append(r.clickY, x)
 				} else {
-					_clickY = []int{x}
+					r.clickY = []int{x}
-					_prevDownTime = now
+					r.prevDownTime = now
 				}
 			} else {
-				if len(_clickY) > 1 && _clickY[0] == _clickY[1] &&
+				if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
-					time.Now().Sub(_prevDownTime) < doubleClickDuration {
+					time.Now().Sub(r.prevDownTime) < doubleClickDuration {
 					double = true
 				}
 			}
 
-			return Event{Mouse, 0, &MouseEvent{y, x, 0, down, double, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
 		}
 
 		// process keyboard:
 	case *tcell.EventKey:
 		alt := (ev.Modifiers() & tcell.ModAlt) > 0
+		keyfn := func(r rune) int {
+			if alt {
+				return CtrlAltA - 'a' + int(r)
+			}
+			return CtrlA - 'a' + int(r)
+		}
 		switch ev.Key() {
 		case tcell.KeyCtrlA:
-			return Event{CtrlA, 0, nil}
+			return Event{keyfn('a'), 0, nil}
 		case tcell.KeyCtrlB:
-			return Event{CtrlB, 0, nil}
+			return Event{keyfn('b'), 0, nil}
 		case tcell.KeyCtrlC:
-			return Event{CtrlC, 0, nil}
+			return Event{keyfn('c'), 0, nil}
 		case tcell.KeyCtrlD:
-			return Event{CtrlD, 0, nil}
+			return Event{keyfn('d'), 0, nil}
 		case tcell.KeyCtrlE:
-			return Event{CtrlE, 0, nil}
+			return Event{keyfn('e'), 0, nil}
 		case tcell.KeyCtrlF:
-			return Event{CtrlF, 0, nil}
+			return Event{keyfn('f'), 0, nil}
 		case tcell.KeyCtrlG:
-			return Event{CtrlG, 0, nil}
+			return Event{keyfn('g'), 0, nil}
+		case tcell.KeyCtrlH:
+			return Event{keyfn('h'), 0, nil}
+		case tcell.KeyCtrlI:
+			return Event{keyfn('i'), 0, nil}
 		case tcell.KeyCtrlJ:
-			return Event{CtrlJ, 0, nil}
+			return Event{keyfn('j'), 0, nil}
 		case tcell.KeyCtrlK:
-			return Event{CtrlK, 0, nil}
+			return Event{keyfn('k'), 0, nil}
 		case tcell.KeyCtrlL:
-			return Event{CtrlL, 0, nil}
+			return Event{keyfn('l'), 0, nil}
 		case tcell.KeyCtrlM:
-			if alt {
+			return Event{keyfn('m'), 0, nil}
-				return Event{AltEnter, 0, nil}
-			}
-			return Event{CtrlM, 0, nil}
 		case tcell.KeyCtrlN:
-			return Event{CtrlN, 0, nil}
+			return Event{keyfn('n'), 0, nil}
 		case tcell.KeyCtrlO:
-			return Event{CtrlO, 0, nil}
+			return Event{keyfn('o'), 0, nil}
 		case tcell.KeyCtrlP:
-			return Event{CtrlP, 0, nil}
+			return Event{keyfn('p'), 0, nil}
 		case tcell.KeyCtrlQ:
-			return Event{CtrlQ, 0, nil}
+			return Event{keyfn('q'), 0, nil}
 		case tcell.KeyCtrlR:
-			return Event{CtrlR, 0, nil}
+			return Event{keyfn('r'), 0, nil}
 		case tcell.KeyCtrlS:
-			return Event{CtrlS, 0, nil}
+			return Event{keyfn('s'), 0, nil}
 		case tcell.KeyCtrlT:
-			return Event{CtrlT, 0, nil}
+			return Event{keyfn('t'), 0, nil}
 		case tcell.KeyCtrlU:
-			return Event{CtrlU, 0, nil}
+			return Event{keyfn('u'), 0, nil}
 		case tcell.KeyCtrlV:
-			return Event{CtrlV, 0, nil}
+			return Event{keyfn('v'), 0, nil}
 		case tcell.KeyCtrlW:
-			return Event{CtrlW, 0, nil}
+			return Event{keyfn('w'), 0, nil}
 		case tcell.KeyCtrlX:
-			return Event{CtrlX, 0, nil}
+			return Event{keyfn('x'), 0, nil}
 		case tcell.KeyCtrlY:
-			return Event{CtrlY, 0, nil}
+			return Event{keyfn('y'), 0, nil}
 		case tcell.KeyCtrlZ:
-			return Event{CtrlZ, 0, nil}
+			return Event{keyfn('z'), 0, nil}
-		case tcell.KeyBackspace, tcell.KeyBackspace2:
+		case tcell.KeyCtrlSpace:
+			return Event{CtrlSpace, 0, nil}
+		case tcell.KeyCtrlBackslash:
+			return Event{CtrlBackSlash, 0, nil}
+		case tcell.KeyCtrlRightSq:
+			return Event{CtrlRightBracket, 0, nil}
+		case tcell.KeyCtrlUnderscore:
+			return Event{CtrlSlash, 0, nil}
+		case tcell.KeyBackspace2:
 			if alt {
 				return Event{AltBS, 0, nil}
 			}
 			return Event{BSpace, 0, nil}
 
 		case tcell.KeyUp:
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
 			return Event{Up, 0, nil}
 		case tcell.KeyDown:
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
 			return Event{Down, 0, nil}
 		case tcell.KeyLeft:
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
 			return Event{Left, 0, nil}
 		case tcell.KeyRight:
+			if alt {
+				return Event{AltRight, 0, nil}
+			}
 			return Event{Right, 0, nil}
 
 		case tcell.KeyHome:
@@ -300,8 +329,6 @@ func GetChar() Event {
 		case tcell.KeyPgDn:
 			return Event{PgDn, 0, nil}
 
-		case tcell.KeyTab:
-			return Event{Tab, 0, nil}
 		case tcell.KeyBacktab:
 			return Event{BTab, 0, nil}
 
@@ -358,99 +385,95 @@ func GetChar() Event {
 	return Event{Invalid, 0, nil}
 }
 
-func Pause() {
+func (r *FullscreenRenderer) Pause(clear bool) {
+	if clear {
+		_screen.Fini()
+	}
+}
+
+func (r *FullscreenRenderer) Resume(clear bool) {
+	if clear {
+		r.initScreen()
+	}
+}
+
+func (r *FullscreenRenderer) Close() {
 	_screen.Fini()
 }
 
-func Resume() bool {
+func (r *FullscreenRenderer) RefreshWindows(windows []Window) {
-	initScreen()
-	return true
-}
-
-func Close() {
-	_screen.Fini()
-}
-
-func RefreshWindows(windows []*Window) {
 	// TODO
 	for _, w := range windows {
-		if w.win().MoveCursor {
+		w.Refresh()
-			_screen.ShowCursor(w.Left+w.win().LastX, w.Top+w.win().LastY)
-			w.win().MoveCursor = false
-		}
-		w.win().LastX = 0
-		w.win().LastY = 0
-		if w.win().Border {
-			w.DrawBorder()
-		}
 	}
 	_screen.Show()
 }
 
-func NewWindow(top int, left int, width int, height int, border bool) *Window {
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
-	// TODO
+	normal := ColNormal
-	win := new(WindowTcell)
+	if preview {
-	win.Border = border
+		normal = ColPreview
-	return &Window{
-		impl:   (*WindowImpl)(win),
-		Top:    top,
-		Left:   left,
-		Width:  width,
-		Height: height,
 	}
+	return &TcellWindow{
+		color:       r.theme != nil,
+		top:         top,
+		left:        left,
+		width:       width,
+		height:      height,
+		normal:      normal,
+		borderStyle: borderStyle}
 }
 
-func (w *Window) Close() {
+func (w *TcellWindow) Close() {
 	// TODO
 }
 
-func fill(x, y, w, h int, r rune) {
+func fill(x, y, w, h int, n ColorPair, r rune) {
 	for ly := 0; ly <= h; ly++ {
 		for lx := 0; lx <= w; lx++ {
-			_screen.SetContent(x+lx, y+ly, r, nil, ColDefault.style())
+			_screen.SetContent(x+lx, y+ly, r, nil, n.style())
 		}
 	}
 }
 
-func (w *Window) Erase() {
+func (w *TcellWindow) Erase() {
-	// TODO
+	fill(w.left-1, w.top, w.width+1, w.height, w.normal, ' ')
-	fill(w.Left, w.Top, w.Width, w.Height, ' ')
 }
 
-func (w *Window) Enclose(y int, x int) bool {
+func (w *TcellWindow) Enclose(y int, x int) bool {
-	return x >= w.Left && x <= (w.Left+w.Width) &&
+	return x >= w.left && x < (w.left+w.width) &&
-		y >= w.Top && y <= (w.Top+w.Height)
+		y >= w.top && y < (w.top+w.height)
 }
 
-func (w *Window) Move(y int, x int) {
+func (w *TcellWindow) Move(y int, x int) {
-	w.win().LastX = x
+	w.lastX = x
-	w.win().LastY = y
+	w.lastY = y
-	w.win().MoveCursor = true
+	w.moveCursor = true
 }
 
-func (w *Window) MoveAndClear(y int, x int) {
+func (w *TcellWindow) MoveAndClear(y int, x int) {
 	w.Move(y, x)
-	for i := w.win().LastX; i < w.Width; i++ {
+	for i := w.lastX; i < w.width; i++ {
-		_screen.SetContent(i+w.Left, w.win().LastY+w.Top, rune(' '), nil, ColDefault.style())
+		_screen.SetContent(i+w.left, w.lastY+w.top, rune(' '), nil, w.normal.style())
 	}
-	w.win().LastX = x
+	w.lastX = x
 }
 
-func (w *Window) Print(text string) {
+func (w *TcellWindow) Print(text string) {
-	w.PrintString(text, ColDefault, 0)
+	w.printString(text, w.normal, 0)
 }
 
-func (w *Window) PrintString(text string, pair ColorPair, a Attr) {
+func (w *TcellWindow) printString(text string, pair ColorPair, a Attr) {
 	t := text
 	lx := 0
 
 	var style tcell.Style
-	if _color {
+	if w.color {
 		style = pair.style().
 			Reverse(a&Attr(tcell.AttrReverse) != 0).
 			Underline(a&Attr(tcell.AttrUnderline) != 0)
 	} else {
-		style = ColDefault.style().
+		style = w.normal.style().
 			Reverse(a&Attr(tcell.AttrReverse) != 0 || pair == ColCurrent || pair == ColCurrentMatch).
 			Underline(a&Attr(tcell.AttrUnderline) != 0 || pair == ColMatch || pair == ColCurrentMatch)
 	}
@@ -471,7 +494,7 @@ func (w *Window) PrintString(text string, pair ColorPair, a Attr) {
 		}
 
 		if r == '\n' {
-			w.win().LastY++
+			w.lastY++
 			lx = 0
 		} else {
 
@@ -479,29 +502,29 @@ func (w *Window) PrintString(text string, pair ColorPair, a Attr) {
 				continue
 			}
 
-			var xPos = w.Left + w.win().LastX + lx
+			var xPos = w.left + w.lastX + lx
-			var yPos = w.Top + w.win().LastY
+			var yPos = w.top + w.lastY
-			if xPos < (w.Left+w.Width) && yPos < (w.Top+w.Height) {
+			if xPos < (w.left+w.width) && yPos < (w.top+w.height) {
 				_screen.SetContent(xPos, yPos, r, nil, style)
 			}
 			lx += runewidth.RuneWidth(r)
 		}
 	}
-	w.win().LastX += lx
+	w.lastX += lx
 }
 
-func (w *Window) CPrint(pair ColorPair, a Attr, text string) {
+func (w *TcellWindow) CPrint(pair ColorPair, attr Attr, text string) {
-	w.PrintString(text, pair, a)
+	w.printString(text, pair, attr)
 }
 
-func (w *Window) FillString(text string, pair ColorPair, a Attr) bool {
+func (w *TcellWindow) fillString(text string, pair ColorPair, a Attr) FillReturn {
 	lx := 0
 
 	var style tcell.Style
-	if _color {
+	if w.color {
 		style = pair.style()
 	} else {
-		style = ColDefault.style()
+		style = w.normal.style()
 	}
 	style = style.
 		Blink(a&Attr(tcell.AttrBlink) != 0).
@@ -512,67 +535,83 @@ func (w *Window) FillString(text string, pair ColorPair, a Attr) bool {
 
 	for _, r := range text {
 		if r == '\n' {
-			w.win().LastY++
+			w.lastY++
-			w.win().LastX = 0
+			w.lastX = 0
 			lx = 0
 		} else {
-			var xPos = w.Left + w.win().LastX + lx
+			var xPos = w.left + w.lastX + lx
 
 			// word wrap:
-			if xPos > (w.Left + w.Width) {
+			if xPos >= (w.left + w.width) {
-				w.win().LastY++
+				w.lastY++
-				w.win().LastX = 0
+				w.lastX = 0
 				lx = 0
-				xPos = w.Left
+				xPos = w.left
 			}
-			var yPos = w.Top + w.win().LastY
+			var yPos = w.top + w.lastY
 
-			if yPos >= (w.Top + w.Height) {
+			if yPos >= (w.top + w.height) {
-				return false
+				return FillSuspend
 			}
 
 			_screen.SetContent(xPos, yPos, r, nil, style)
 			lx += runewidth.RuneWidth(r)
 		}
 	}
-	w.win().LastX += lx
+	w.lastX += lx
 
-	return true
+	return FillContinue
 }
 
-func (w *Window) Fill(str string) bool {
+func (w *TcellWindow) Fill(str string) FillReturn {
-	return w.FillString(str, ColDefault, 0)
+	return w.fillString(str, w.normal, 0)
 }
 
-func (w *Window) CFill(str string, fg Color, bg Color, a Attr) bool {
+func (w *TcellWindow) CFill(fg Color, bg Color, a Attr, str string) FillReturn {
-	return w.FillString(str, ColorPair{fg, bg}, a)
+	if fg == colDefault {
+		fg = w.normal.Fg()
+	}
+	if bg == colDefault {
+		bg = w.normal.Bg()
+	}
+	return w.fillString(str, NewColorPair(fg, bg), a)
 }
 
-func (w *Window) DrawBorder() {
+func (w *TcellWindow) drawBorder() {
-	left := w.Left
+	if w.borderStyle.shape == BorderNone {
-	right := left + w.Width
+		return
-	top := w.Top
+	}
-	bot := top + w.Height
+
+	left := w.left
+	right := left + w.width
+	top := w.top
+	bot := top + w.height
 
 	var style tcell.Style
-	if _color {
+	if w.color {
-		style = ColBorder.style()
+		if w.borderStyle.shape == BorderAround {
+			style = ColPreviewBorder.style()
+		} else {
+			style = ColBorder.style()
+		}
 	} else {
-		style = ColDefault.style()
+		style = w.normal.style()
 	}
 
 	for x := left; x < right; x++ {
-		_screen.SetContent(x, top, tcell.RuneHLine, nil, style)
+		_screen.SetContent(x, top, w.borderStyle.horizontal, nil, style)
-		_screen.SetContent(x, bot-1, tcell.RuneHLine, nil, style)
+		_screen.SetContent(x, bot-1, w.borderStyle.horizontal, nil, style)
 	}
 
-	for y := top; y < bot; y++ {
+	if w.borderStyle.shape == BorderAround {
-		_screen.SetContent(left, y, tcell.RuneVLine, nil, style)
+		for y := top; y < bot; y++ {
-		_screen.SetContent(right-1, y, tcell.RuneVLine, nil, style)
+			_screen.SetContent(left, y, w.borderStyle.vertical, nil, style)
-	}
+			_screen.SetContent(right-1, y, w.borderStyle.vertical, nil, style)
+		}
 
-	_screen.SetContent(left, top, tcell.RuneULCorner, nil, style)
+		_screen.SetContent(left, top, w.borderStyle.topLeft, nil, style)
-	_screen.SetContent(right-1, top, tcell.RuneURCorner, nil, style)
+		_screen.SetContent(right-1, top, w.borderStyle.topRight, nil, style)
-	_screen.SetContent(left, bot-1, tcell.RuneLLCorner, nil, style)
+		_screen.SetContent(left, bot-1, w.borderStyle.bottomLeft, nil, style)
-	_screen.SetContent(right-1, bot-1, tcell.RuneLRCorner, nil, style)
+		_screen.SetContent(right-1, bot-1, w.borderStyle.bottomRight, nil, style)
+	}
 }

src/tui/ttyname_unix.go

@@ -0,0 +1,31 @@
+// +build !windows
+
+package tui
+
+import (
+	"io/ioutil"
+	"syscall"
+)
+
+var devPrefixes = [...]string{"/dev/pts/", "/dev/"}
+
+func ttyname() string {
+	var stderr syscall.Stat_t
+	if syscall.Fstat(2, &stderr) != nil {
+		return ""
+	}
+
+	for _, prefix := range devPrefixes {
+		files, err := ioutil.ReadDir(prefix)
+		if err != nil {
+			continue
+		}
+
+		for _, file := range files {
+			if stat, ok := file.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
+				return prefix + file.Name()
+			}
+		}
+	}
+	return ""
+}

src/tui/ttyname_windows.go

@@ -0,0 +1,7 @@
+// +build windows
+
+package tui
+
+func ttyname() string {
+	return ""
+}

src/tui/tui.go

@@ -1,6 +1,9 @@
 package tui
 
 import (
+	"fmt"
+	"os"
+	"strconv"
 	"time"
 )
 
@@ -35,10 +38,20 @@ const (
 	CtrlY
 	CtrlZ
 	ESC
+	CtrlSpace
+
+	// https://apple.stackexchange.com/questions/24261/how-do-i-send-c-that-is-control-slash-to-the-terminal
+	CtrlBackSlash
+	CtrlRightBracket
+	CtrlCaret
+	CtrlSlash
 
 	Invalid
+	Resize
 	Mouse
 	DoubleClick
+	LeftClick
+	RightClick
 
 	BTab
 	BSpace
@@ -54,6 +67,8 @@ const (
 	Home
 	End
 
+	SUp
+	SDown
 	SLeft
 	SRight
 
@@ -70,11 +85,17 @@ const (
 	F11
 	F12
 
-	AltEnter
+	Change
+
 	AltSpace
 	AltSlash
 	AltBS
 
+	AltUp
+	AltDown
+	AltLeft
+	AltRight
+
 	Alt0
 )
 
@@ -85,18 +106,24 @@ const ( // Reset iota
 	AltD
 	AltE
 	AltF
-	AltZ = AltA + 'z' - 'a'
+	AltZ     = AltA + 'z' - 'a'
+	CtrlAltA = AltZ + 1
+	CtrlAltM = CtrlAltA + 'm' - 'a'
 )
 
 const (
 	doubleClickDuration = 500 * time.Millisecond
 )
 
-type Color int16
+type Color int32
+
+func (c Color) is24() bool {
+	return c > 0 && (c&(1<<24)) > 0
+}
 
 const (
 	colUndefined Color = -2
-	colDefault         = -1
+	colDefault   Color = -1
 )
 
 const (
@@ -110,10 +137,46 @@ const (
 	colWhite
 )
 
+type FillReturn int
+
+const (
+	FillContinue FillReturn = iota
+	FillNextLine
+	FillSuspend
+)
+
+type ColorPair struct {
+	fg Color
+	bg Color
+	id int
+}
+
+func HexToColor(rrggbb string) Color {
+	r, _ := strconv.ParseInt(rrggbb[1:3], 16, 0)
+	g, _ := strconv.ParseInt(rrggbb[3:5], 16, 0)
+	b, _ := strconv.ParseInt(rrggbb[5:7], 16, 0)
+	return Color((1 << 24) + (r << 16) + (g << 8) + b)
+}
+
+func NewColorPair(fg Color, bg Color) ColorPair {
+	return ColorPair{fg, bg, -1}
+}
+
+func (p ColorPair) Fg() Color {
+	return p.fg
+}
+
+func (p ColorPair) Bg() Color {
+	return p.bg
+}
+
 type ColorTheme struct {
 	Fg           Color
 	Bg           Color
+	PreviewFg    Color
+	PreviewBg    Color
 	DarkBg       Color
+	Gutter       Color
 	Prompt       Color
 	Match        Color
 	Current      Color
@@ -136,33 +199,155 @@ type MouseEvent struct {
 	Y      int
 	X      int
 	S      int
+	Left   bool
 	Down   bool
 	Double bool
 	Mod    bool
 }
 
-var (
+type BorderShape int
-	_color        bool
+
-	_prevDownTime time.Time
+const (
-	_clickY       []int
+	BorderNone BorderShape = iota
-	Default16     *ColorTheme
+	BorderAround
-	Dark256       *ColorTheme
+	BorderHorizontal
-	Light256      *ColorTheme
 )
 
-type Window struct {
+type BorderStyle struct {
-	impl   *WindowImpl
+	shape       BorderShape
-	Top    int
+	horizontal  rune
-	Left   int
+	vertical    rune
-	Width  int
+	topLeft     rune
-	Height int
+	topRight    rune
+	bottomLeft  rune
+	bottomRight rune
 }
 
+type BorderCharacter int
+
+func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
+	if unicode {
+		return BorderStyle{
+			shape:       shape,
+			horizontal:  '─',
+			vertical:    '│',
+			topLeft:     '┌',
+			topRight:    '┐',
+			bottomLeft:  '└',
+			bottomRight: '┘',
+		}
+	}
+	return BorderStyle{
+		shape:       shape,
+		horizontal:  '-',
+		vertical:    '|',
+		topLeft:     '+',
+		topRight:    '+',
+		bottomLeft:  '+',
+		bottomRight: '+',
+	}
+}
+
+func MakeTransparentBorder() BorderStyle {
+	return BorderStyle{
+		shape:       BorderAround,
+		horizontal:  ' ',
+		vertical:    ' ',
+		topLeft:     ' ',
+		topRight:    ' ',
+		bottomLeft:  ' ',
+		bottomRight: ' '}
+}
+
+type Renderer interface {
+	Init()
+	Pause(clear bool)
+	Resume(clear bool)
+	Clear()
+	RefreshWindows(windows []Window)
+	Refresh()
+	Close()
+
+	GetChar() Event
+
+	MaxX() int
+	MaxY() int
+	DoesAutoWrap() bool
+
+	NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window
+}
+
+type Window interface {
+	Top() int
+	Left() int
+	Width() int
+	Height() int
+
+	Refresh()
+	FinishFill()
+	Close()
+
+	X() int
+	Y() int
+	Enclose(y int, x int) bool
+
+	Move(y int, x int)
+	MoveAndClear(y int, x int)
+	Print(text string)
+	CPrint(color ColorPair, attr Attr, text string)
+	Fill(text string) FillReturn
+	CFill(fg Color, bg Color, attr Attr, text string) FillReturn
+	Erase()
+}
+
+type FullscreenRenderer struct {
+	theme        *ColorTheme
+	mouse        bool
+	forceBlack   bool
+	prevDownTime time.Time
+	clickY       []int
+}
+
+func NewFullscreenRenderer(theme *ColorTheme, forceBlack bool, mouse bool) Renderer {
+	r := &FullscreenRenderer{
+		theme:        theme,
+		mouse:        mouse,
+		forceBlack:   forceBlack,
+		prevDownTime: time.Unix(0, 0),
+		clickY:       []int{}}
+	return r
+}
+
+var (
+	Default16 *ColorTheme
+	Dark256   *ColorTheme
+	Light256  *ColorTheme
+
+	ColPrompt          ColorPair
+	ColNormal          ColorPair
+	ColMatch           ColorPair
+	ColCursor          ColorPair
+	ColSelected        ColorPair
+	ColCurrent         ColorPair
+	ColCurrentMatch    ColorPair
+	ColCurrentCursor   ColorPair
+	ColCurrentSelected ColorPair
+	ColSpinner         ColorPair
+	ColInfo            ColorPair
+	ColHeader          ColorPair
+	ColBorder          ColorPair
+	ColPreview         ColorPair
+	ColPreviewBorder   ColorPair
+)
+
 func EmptyTheme() *ColorTheme {
 	return &ColorTheme{
 		Fg:           colUndefined,
 		Bg:           colUndefined,
+		PreviewFg:    colUndefined,
+		PreviewBg:    colUndefined,
 		DarkBg:       colUndefined,
+		Gutter:       colUndefined,
 		Prompt:       colUndefined,
 		Match:        colUndefined,
 		Current:      colUndefined,
@@ -175,13 +360,19 @@ func EmptyTheme() *ColorTheme {
 		Border:       colUndefined}
 }
 
+func errorExit(message string) {
+	fmt.Fprintln(os.Stderr, message)
+	os.Exit(2)
+}
+
 func init() {
-	_prevDownTime = time.Unix(0, 0)
-	_clickY = []int{}
 	Default16 = &ColorTheme{
 		Fg:           colDefault,
 		Bg:           colDefault,
+		PreviewFg:    colUndefined,
+		PreviewBg:    colUndefined,
 		DarkBg:       colBlack,
+		Gutter:       colUndefined,
 		Prompt:       colBlue,
 		Match:        colGreen,
 		Current:      colYellow,
@@ -195,7 +386,10 @@ func init() {
 	Dark256 = &ColorTheme{
 		Fg:           colDefault,
 		Bg:           colDefault,
+		PreviewFg:    colUndefined,
+		PreviewBg:    colUndefined,
 		DarkBg:       236,
+		Gutter:       colUndefined,
 		Prompt:       110,
 		Match:        108,
 		Current:      254,
@@ -209,7 +403,10 @@ func init() {
 	Light256 = &ColorTheme{
 		Fg:           colDefault,
 		Bg:           colDefault,
+		PreviewFg:    colUndefined,
+		PreviewBg:    colUndefined,
 		DarkBg:       251,
+		Gutter:       colUndefined,
 		Prompt:       25,
 		Match:        66,
 		Current:      237,
@@ -222,14 +419,13 @@ func init() {
 		Border:       145}
 }
 
-func InitTheme(theme *ColorTheme, black bool) {
+func initTheme(theme *ColorTheme, baseTheme *ColorTheme, forceBlack bool) {
-	_color = theme != nil
+	if theme == nil {
-	if !_color {
+		initPalette(theme)
 		return
 	}
 
-	baseTheme := DefaultTheme()
+	if forceBlack {
-	if black {
 		theme.Bg = colBlack
 	}
 
@@ -241,7 +437,10 @@ func InitTheme(theme *ColorTheme, black bool) {
 	}
 	theme.Fg = o(baseTheme.Fg, theme.Fg)
 	theme.Bg = o(baseTheme.Bg, theme.Bg)
+	theme.PreviewFg = o(theme.Fg, o(baseTheme.PreviewFg, theme.PreviewFg))
+	theme.PreviewBg = o(theme.Bg, o(baseTheme.PreviewBg, theme.PreviewBg))
 	theme.DarkBg = o(baseTheme.DarkBg, theme.DarkBg)
+	theme.Gutter = o(theme.DarkBg, o(baseTheme.Gutter, theme.Gutter))
 	theme.Prompt = o(baseTheme.Prompt, theme.Prompt)
 	theme.Match = o(baseTheme.Match, theme.Match)
 	theme.Current = o(baseTheme.Current, theme.Current)
@@ -252,4 +451,59 @@ func InitTheme(theme *ColorTheme, black bool) {
 	theme.Selected = o(baseTheme.Selected, theme.Selected)
 	theme.Header = o(baseTheme.Header, theme.Header)
 	theme.Border = o(baseTheme.Border, theme.Border)
+
+	initPalette(theme)
+}
+
+func initPalette(theme *ColorTheme) {
+	idx := 0
+	pair := func(fg, bg Color) ColorPair {
+		idx++
+		return ColorPair{fg, bg, idx}
+	}
+	if theme != nil {
+		ColPrompt = pair(theme.Prompt, theme.Bg)
+		ColNormal = pair(theme.Fg, theme.Bg)
+		ColMatch = pair(theme.Match, theme.Bg)
+		ColCursor = pair(theme.Cursor, theme.Gutter)
+		ColSelected = pair(theme.Selected, theme.Gutter)
+		ColCurrent = pair(theme.Current, theme.DarkBg)
+		ColCurrentMatch = pair(theme.CurrentMatch, theme.DarkBg)
+		ColCurrentCursor = pair(theme.Cursor, theme.DarkBg)
+		ColCurrentSelected = pair(theme.Selected, theme.DarkBg)
+		ColSpinner = pair(theme.Spinner, theme.Bg)
+		ColInfo = pair(theme.Info, theme.Bg)
+		ColHeader = pair(theme.Header, theme.Bg)
+		ColBorder = pair(theme.Border, theme.Bg)
+		ColPreview = pair(theme.PreviewFg, theme.PreviewBg)
+		ColPreviewBorder = pair(theme.Border, theme.PreviewBg)
+	} else {
+		ColPrompt = pair(colDefault, colDefault)
+		ColNormal = pair(colDefault, colDefault)
+		ColMatch = pair(colDefault, colDefault)
+		ColCursor = pair(colDefault, colDefault)
+		ColSelected = pair(colDefault, colDefault)
+		ColCurrent = pair(colDefault, colDefault)
+		ColCurrentMatch = pair(colDefault, colDefault)
+		ColCurrentCursor = pair(colDefault, colDefault)
+		ColCurrentSelected = pair(colDefault, colDefault)
+		ColSpinner = pair(colDefault, colDefault)
+		ColInfo = pair(colDefault, colDefault)
+		ColHeader = pair(colDefault, colDefault)
+		ColBorder = pair(colDefault, colDefault)
+		ColPreview = pair(colDefault, colDefault)
+		ColPreviewBorder = pair(colDefault, colDefault)
+	}
+}
+
+func attrFor(color ColorPair, attr Attr) Attr {
+	switch color {
+	case ColCurrent:
+		return attr | Reverse
+	case ColMatch:
+		return attr | Underline
+	case ColCurrentMatch:
+		return attr | Underline | Reverse
+	}
+	return attr
 }

src/tui/tui_test.go

@@ -1,14 +1,20 @@
 package tui
 
-import (
+import "testing"
-	"testing"
-)
 
-func TestPairFor(t *testing.T) {
+func TestHexToColor(t *testing.T) {
-	if PairFor(30, 50) != PairFor(30, 50) {
+	assert := func(expr string, r, g, b int) {
-		t.Fail()
+		color := HexToColor(expr)
-	}
+		if !color.is24() ||
-	if PairFor(-1, 10) != PairFor(-1, 10) {
+			int((color>>16)&0xff) != r ||
-		t.Fail()
+			int((color>>8)&0xff) != g ||
+			int((color)&0xff) != b {
+			t.Fail()
+		}
 	}
+
+	assert("#ff0000", 255, 0, 0)
+	assert("#010203", 1, 2, 3)
+	assert("#102030", 16, 32, 48)
+	assert("#ffffff", 255, 255, 255)
 }

src/update_assets.rb

@@ -23,21 +23,23 @@ end
 # List assets
 assets = Hash[rel['assets'].map { |a| a.values_at *%w[name id] }]
 
-files.select { |f| File.exists? f }.each do |file|
+files.select { |f| File.exists? f }.map do |file|
-  name = File.basename file
+  Thread.new do
+    name = File.basename file
 
-  if asset_id = assets[name]
+    if asset_id = assets[name]
-    puts "#{name} found. Deleting asset id #{asset_id}."
+      puts "#{name} found. Deleting asset id #{asset_id}."
-    RestClient.delete "#{base}/assets/#{asset_id}",
+      RestClient.delete "#{base}/assets/#{asset_id}",
-      :authorization => "token #{token}"
+        :authorization => "token #{token}"
-  else
+    else
-    puts "#{name} not found"
+      puts "#{name} not found"
+    end
+
+    puts "Uploading #{name}"
+    RestClient.post(
+      "#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
+      File.read(file),
+      :authorization => "token #{token}",
+      :content_type  => "application/octet-stream")
   end
-
+end.each(&:join)
-  puts "Uploading #{name}"
-  RestClient.post(
-    "#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
-    File.read(file),
-    :authorization => "token #{token}",
-    :content_type  => "application/octet-stream")
-end

src/util/chars.go

@@ -1,65 +1,111 @@
 package util
 
 import (
+	"fmt"
 	"unicode"
 	"unicode/utf8"
+	"unsafe"
+)
+
+const (
+	overflow64 uint64 = 0x8080808080808080
+	overflow32 uint32 = 0x80808080
 )
 
 type Chars struct {
-	runes []rune
+	slice           []byte // or []rune
-	bytes []byte
+	inBytes         bool
+	trimLengthKnown bool
+	trimLength      uint16
+
+	// XXX Piggybacking item index here is a horrible idea. But I'm trying to
+	// minimize the memory footprint by not wasting padded spaces.
+	Index int32
+}
+
+func checkAscii(bytes []byte) (bool, int) {
+	i := 0
+	for ; i <= len(bytes)-8; i += 8 {
+		if (overflow64 & *(*uint64)(unsafe.Pointer(&bytes[i]))) > 0 {
+			return false, i
+		}
+	}
+	for ; i <= len(bytes)-4; i += 4 {
+		if (overflow32 & *(*uint32)(unsafe.Pointer(&bytes[i]))) > 0 {
+			return false, i
+		}
+	}
+	for ; i < len(bytes); i++ {
+		if bytes[i] >= utf8.RuneSelf {
+			return false, i
+		}
+	}
+	return true, 0
 }
 
 // ToChars converts byte array into rune array
-func ToChars(bytea []byte) Chars {
+func ToChars(bytes []byte) Chars {
-	var runes []rune
+	inBytes, bytesUntil := checkAscii(bytes)
-	ascii := true
+	if inBytes {
-	numBytes := len(bytea)
+		return Chars{slice: bytes, inBytes: inBytes}
-	for i := 0; i < numBytes; {
-		if bytea[i] < utf8.RuneSelf {
-			if !ascii {
-				runes = append(runes, rune(bytea[i]))
-			}
-			i++
-		} else {
-			if ascii {
-				ascii = false
-				runes = make([]rune, i, numBytes)
-				for j := 0; j < i; j++ {
-					runes[j] = rune(bytea[j])
-				}
-			}
-			r, sz := utf8.DecodeRune(bytea[i:])
-			i += sz
-			runes = append(runes, r)
-		}
 	}
-	if ascii {
+
-		return Chars{bytes: bytea}
+	runes := make([]rune, bytesUntil, len(bytes))
+	for i := 0; i < bytesUntil; i++ {
+		runes[i] = rune(bytes[i])
 	}
-	return Chars{runes: runes}
+	for i := bytesUntil; i < len(bytes); {
+		r, sz := utf8.DecodeRune(bytes[i:])
+		i += sz
+		runes = append(runes, r)
+	}
+	return RunesToChars(runes)
 }
 
 func RunesToChars(runes []rune) Chars {
-	return Chars{runes: runes}
+	return Chars{slice: *(*[]byte)(unsafe.Pointer(&runes)), inBytes: false}
+}
+
+func (chars *Chars) IsBytes() bool {
+	return chars.inBytes
+}
+
+func (chars *Chars) Bytes() []byte {
+	return chars.slice
+}
+
+func (chars *Chars) optionalRunes() []rune {
+	if chars.inBytes {
+		return nil
+	}
+	return *(*[]rune)(unsafe.Pointer(&chars.slice))
 }
 
 func (chars *Chars) Get(i int) rune {
-	if chars.runes != nil {
+	if runes := chars.optionalRunes(); runes != nil {
-		return chars.runes[i]
+		return runes[i]
 	}
-	return rune(chars.bytes[i])
+	return rune(chars.slice[i])
 }
 
 func (chars *Chars) Length() int {
-	if chars.runes != nil {
+	if runes := chars.optionalRunes(); runes != nil {
-		return len(chars.runes)
+		return len(runes)
 	}
-	return len(chars.bytes)
+	return len(chars.slice)
+}
+
+// String returns the string representation of a Chars object.
+func (chars *Chars) String() string {
+	return fmt.Sprintf("Chars{slice: []byte(%q), inBytes: %v, trimLengthKnown: %v, trimLength: %d, Index: %d}", chars.slice, chars.inBytes, chars.trimLengthKnown, chars.trimLength, chars.Index)
 }
 
 // TrimLength returns the length after trimming leading and trailing whitespaces
-func (chars *Chars) TrimLength() int {
+func (chars *Chars) TrimLength() uint16 {
+	if chars.trimLengthKnown {
+		return chars.trimLength
+	}
+	chars.trimLengthKnown = true
 	var i int
 	len := chars.Length()
 	for i = len - 1; i >= 0; i-- {
@@ -80,7 +126,8 @@ func (chars *Chars) TrimLength() int {
 			break
 		}
 	}
-	return i - j + 1
+	chars.trimLength = AsUint16(i - j + 1)
+	return chars.trimLength
 }
 
 func (chars *Chars) TrailingWhitespaces() int {
@@ -95,63 +142,45 @@ func (chars *Chars) TrailingWhitespaces() int {
 	return whitespaces
 }
 
+func (chars *Chars) TrimTrailingWhitespaces() {
+	whitespaces := chars.TrailingWhitespaces()
+	chars.slice = chars.slice[0 : len(chars.slice)-whitespaces]
+}
+
 func (chars *Chars) ToString() string {
-	if chars.runes != nil {
+	if runes := chars.optionalRunes(); runes != nil {
-		return string(chars.runes)
+		return string(runes)
 	}
-	return string(chars.bytes)
+	return string(chars.slice)
 }
 
 func (chars *Chars) ToRunes() []rune {
-	if chars.runes != nil {
+	if runes := chars.optionalRunes(); runes != nil {
-		return chars.runes
+		return runes
 	}
-	runes := make([]rune, len(chars.bytes))
+	bytes := chars.slice
-	for idx, b := range chars.bytes {
+	runes := make([]rune, len(bytes))
+	for idx, b := range bytes {
 		runes[idx] = rune(b)
 	}
 	return runes
 }
 
-func (chars *Chars) Slice(b int, e int) Chars {
+func (chars *Chars) CopyRunes(dest []rune) {
-	if chars.runes != nil {
+	if runes := chars.optionalRunes(); runes != nil {
-		return Chars{runes: chars.runes[b:e]}
+		copy(dest, runes)
+		return
+	}
+	for idx, b := range chars.slice[:len(dest)] {
+		dest[idx] = rune(b)
 	}
-	return Chars{bytes: chars.bytes[b:e]}
 }
 
-func (chars *Chars) Split(delimiter string) []Chars {
+func (chars *Chars) Prepend(prefix string) {
-	delim := []rune(delimiter)
+	if runes := chars.optionalRunes(); runes != nil {
-	numChars := chars.Length()
+		runes = append([]rune(prefix), runes...)
-	numDelim := len(delim)
+		chars.slice = *(*[]byte)(unsafe.Pointer(&runes))
-	begin := 0
+	} else {
-	ret := make([]Chars, 0, 1)
+		chars.slice = append([]byte(prefix), chars.slice...)
-
-	for index := 0; index < numChars; {
-		if index+numDelim <= numChars {
-			match := true
-			for off, d := range delim {
-				if chars.Get(index+off) != d {
-					match = false
-					break
-				}
-			}
-			// Found the delimiter
-			if match {
-				incr := Max(numDelim, 1)
-				ret = append(ret, chars.Slice(begin, index+incr))
-				index += incr
-				begin = index
-				continue
-			}
-		} else {
-			// Impossible to find the delimiter in the remaining substring
-			break
-		}
-		index++
 	}
-	if begin < numChars || len(ret) == 0 {
-		ret = append(ret, chars.Slice(begin, numChars))
-	}
-	return ret
 }

src/util/chars_test.go

@@ -2,27 +2,16 @@ package util
 
 import "testing"
 
-func TestToCharsNil(t *testing.T) {
-	bs := Chars{bytes: []byte{}}
-	if bs.bytes == nil || bs.runes != nil {
-		t.Error()
-	}
-	rs := RunesToChars([]rune{})
-	if rs.bytes != nil || rs.runes == nil {
-		t.Error()
-	}
-}
-
 func TestToCharsAscii(t *testing.T) {
 	chars := ToChars([]byte("foobar"))
-	if chars.ToString() != "foobar" || chars.runes != nil {
+	if !chars.inBytes || chars.ToString() != "foobar" || !chars.inBytes {
 		t.Error()
 	}
 }
 
 func TestCharsLength(t *testing.T) {
 	chars := ToChars([]byte("\tabc한글  "))
-	if chars.Length() != 8 || chars.TrimLength() != 5 {
+	if chars.inBytes || chars.Length() != 8 || chars.TrimLength() != 5 {
 		t.Error()
 	}
 }
@@ -36,7 +25,7 @@ func TestCharsToString(t *testing.T) {
 }
 
 func TestTrimLength(t *testing.T) {
-	check := func(str string, exp int) {
+	check := func(str string, exp uint16) {
 		chars := ToChars([]byte(str))
 		trimmed := chars.TrimLength()
 		if trimmed != exp {
@@ -55,28 +44,3 @@ func TestTrimLength(t *testing.T) {
 	check("  h   o  ", 5)
 	check("         ", 0)
 }
-
-func TestSplit(t *testing.T) {
-	check := func(str string, delim string, tokens ...string) {
-		input := ToChars([]byte(str))
-		result := input.Split(delim)
-		if len(result) != len(tokens) {
-			t.Errorf("Invalid Split result for '%s': %d tokens found (expected %d): %s",
-				str, len(result), len(tokens), result)
-		}
-		for idx, token := range tokens {
-			if result[idx].ToString() != token {
-				t.Errorf("Invalid Split result for '%s': %s (expected %s)",
-					str, result[idx].ToString(), token)
-			}
-		}
-	}
-	check("abc:def::", ":", "abc:", "def:", ":")
-	check("abc:def::", "-", "abc:def::")
-	check("abc", "", "a", "b", "c")
-	check("abc", "a", "a", "bc")
-	check("abc", "ab", "ab", "c")
-	check("abc", "abc", "abc")
-	check("abc", "abcd", "abc")
-	check("", "abcd", "")
-}

src/util/eventbox.go

@@ -26,23 +26,23 @@ func NewEventBox() *EventBox {
 // Wait blocks the goroutine until signaled
 func (b *EventBox) Wait(callback func(*Events)) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 
 	if len(b.events) == 0 {
 		b.cond.Wait()
 	}
 
 	callback(&b.events)
+	b.cond.L.Unlock()
 }
 
 // Set turns on the event type on the box
 func (b *EventBox) Set(event EventType, value interface{}) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	b.events[event] = value
 	if _, found := b.ignore[event]; !found {
 		b.cond.Broadcast()
 	}
+	b.cond.L.Unlock()
 }
 
 // Clear clears the events
@@ -56,27 +56,27 @@ func (events *Events) Clear() {
 // Peek peeks at the event box if the given event is set
 func (b *EventBox) Peek(event EventType) bool {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	_, ok := b.events[event]
+	b.cond.L.Unlock()
 	return ok
 }
 
 // Watch deletes the events from the ignore list
 func (b *EventBox) Watch(events ...EventType) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	for _, event := range events {
 		delete(b.ignore, event)
 	}
+	b.cond.L.Unlock()
 }
 
 // Unwatch adds the events to the ignore list
 func (b *EventBox) Unwatch(events ...EventType) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	for _, event := range events {
 		b.ignore[event] = true
 	}
+	b.cond.L.Unlock()
 }
 
 // WaitFor blocks the execution until the event is received

src/util/util.go

@@ -5,9 +5,26 @@ import (
 	"os"
 	"time"
 
-	"github.com/junegunn/go-isatty"
+	"github.com/mattn/go-isatty"
+	"github.com/mattn/go-runewidth"
 )
 
+var _runeWidths = make(map[rune]int)
+
+// RuneWidth returns rune width
+func RuneWidth(r rune, prefixWidth int, tabstop int) int {
+	if r == '\t' {
+		return tabstop - prefixWidth%tabstop
+	} else if w, found := _runeWidths[r]; found {
+		return w
+	} else if r == '\n' || r == '\r' {
+		return 1
+	}
+	w := runewidth.RuneWidth(r)
+	_runeWidths[r] = w
+	return w
+}
+
 // Max returns the largest integer
 func Max(first int, second int) int {
 	if first >= second {
@@ -95,3 +112,13 @@ func DurWithin(
 func IsTty() bool {
 	return isatty.IsTerminal(os.Stdin.Fd())
 }
+
+// Once returns a function that returns the specified boolean value only once
+func Once(nextResponse bool) func() bool {
+	state := nextResponse
+	return func() bool {
+		prevState := state
+		state = false
+		return prevState
+	}
+}

src/util/util_test.go

@@ -20,3 +20,21 @@ func TestContrain(t *testing.T) {
 		t.Error("Expected", 3)
 	}
 }
+
+func TestOnce(t *testing.T) {
+	o := Once(false)
+	if o() {
+		t.Error("Expected: false")
+	}
+	if o() {
+		t.Error("Expected: false")
+	}
+
+	o = Once(true)
+	if !o() {
+		t.Error("Expected: true")
+	}
+	if o() {
+		t.Error("Expected: false")
+	}
+}

src/util/util_unix.go

@@ -5,18 +5,43 @@ package util
 import (
 	"os"
 	"os/exec"
+	"syscall"
 )
 
 // ExecCommand executes the given command with $SHELL
-func ExecCommand(command string) *exec.Cmd {
+func ExecCommand(command string, setpgid bool) *exec.Cmd {
 	shell := os.Getenv("SHELL")
 	if len(shell) == 0 {
 		shell = "sh"
 	}
-	return exec.Command(shell, "-c", command)
+	return ExecCommandWith(shell, command, setpgid)
+}
+
+// ExecCommandWith executes the given command with the specified shell
+func ExecCommandWith(shell string, command string, setpgid bool) *exec.Cmd {
+	cmd := exec.Command(shell, "-c", command)
+	if setpgid {
+		cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+	}
+	return cmd
+}
+
+// KillCommand kills the process for the given command
+func KillCommand(cmd *exec.Cmd) error {
+	return syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
 }
 
 // IsWindows returns true on Windows
 func IsWindows() bool {
 	return false
 }
+
+// SetNonblock executes syscall.SetNonblock on file descriptor
+func SetNonblock(file *os.File, nonblock bool) {
+	syscall.SetNonblock(int(file.Fd()), nonblock)
+}
+
+// Read executes syscall.Read on file descriptor
+func Read(fd int, b []byte) (int, error) {
+	return syscall.Read(int(fd), b)
+}

src/util/util_windows.go

@@ -3,26 +3,47 @@
 package util
 
 import (
+	"fmt"
 	"os"
 	"os/exec"
-
+	"syscall"
-	"github.com/junegunn/go-shellwords"
 )
 
-// ExecCommand executes the given command with $SHELL
+// ExecCommand executes the given command with cmd
-func ExecCommand(command string) *exec.Cmd {
+func ExecCommand(command string, setpgid bool) *exec.Cmd {
-	shell := os.Getenv("SHELL")
+	return ExecCommandWith("cmd", command, setpgid)
-	if len(shell) == 0 {
+}
-		shell = "cmd"
+
+// ExecCommandWith executes the given command with cmd. _shell parameter is
+// ignored on Windows.
+// FIXME: setpgid is unused. We set it in the Unix implementation so that we
+// can kill preview process with its child processes at once.
+func ExecCommandWith(_shell string, command string, setpgid bool) *exec.Cmd {
+	cmd := exec.Command("cmd")
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		HideWindow:    false,
+		CmdLine:       fmt.Sprintf(` /v:on/s/c "%s"`, command),
+		CreationFlags: 0,
 	}
-	args, _ := shellwords.Parse(command)
+	return cmd
-	allArgs := make([]string, len(args)+1)
+}
-	allArgs[0] = "/c"
+
-	copy(allArgs[1:], args)
+// KillCommand kills the process for the given command
-	return exec.Command(shell, allArgs...)
+func KillCommand(cmd *exec.Cmd) error {
+	return cmd.Process.Kill()
 }
 
 // IsWindows returns true on Windows
 func IsWindows() bool {
 	return true
 }
+
+// SetNonblock executes syscall.SetNonblock on file descriptor
+func SetNonblock(file *os.File, nonblock bool) {
+	syscall.SetNonblock(syscall.Handle(file.Fd()), nonblock)
+}
+
+// Read executes syscall.Read on file descriptor
+func Read(fd int, b []byte) (int, error) {
+	return syscall.Read(syscall.Handle(fd), b)
+}

test/fzf.vader

@@ -6,12 +6,15 @@ Execute (Setup):
 
 Execute (fzf#run with dir option):
   let cwd = getcwd()
-  let result = fzf#run({ 'options': '--filter=vdr', 'dir': g:dir })
+  let result = fzf#run({ 'source': 'git ls-files', 'options': '--filter=vdr', 'dir': g:dir })
   AssertEqual ['fzf.vader'], result
+  AssertEqual 0, haslocaldir()
   AssertEqual getcwd(), cwd
 
-  let result = sort(fzf#run({ 'options': '--filter e', 'dir': g:dir }))
+  execute 'lcd' fnameescape(cwd)
+  let result = sort(fzf#run({ 'source': 'git ls-files', 'options': '--filter e', 'dir': g:dir }))
   AssertEqual ['fzf.vader', 'test_go.rb'], result
+  AssertEqual 1, haslocaldir()
   AssertEqual getcwd(), cwd
 
 Execute (fzf#run with Funcref command):
@@ -19,7 +22,7 @@ Execute (fzf#run with Funcref command):
   function! g:FzfTest(e)
     call add(g:ret, a:e)
   endfunction
-  let result = sort(fzf#run({ 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
+  let result = sort(fzf#run({ 'source': 'git ls-files', 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
   AssertEqual ['fzf.vader', 'test_go.rb'], result
   AssertEqual ['fzf.vader', 'test_go.rb'], sort(g:ret)
 
@@ -56,11 +59,11 @@ Execute (Incomplete fzf#run with dir option and autochdir):
   " No change in working directory even if &acd is set
   AssertEqual cwd, getcwd()
 
-Execute (fzf#run with dir option and autochdir):
+Execute (FIXME: fzf#run with dir option and autochdir):
   set acd
-  let cwd = getcwd()
   call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
   " Working directory changed due to &acd
+  AssertEqual '/foobar', expand('%')
   AssertEqual '/', getcwd()
 
 Execute (fzf#run with dir option and autochdir when final cwd is same as dir):
@@ -140,13 +143,33 @@ Execute (fzf#wrap):
   let g:fzf_history_dir = '/tmp'
   let opts = fzf#wrap('foobar', {'options': '--color light'})
   Log opts
-  Assert opts.options =~ '--history /tmp/foobar'
+  Assert opts.options =~ "--history '/tmp/foobar'"
   Assert opts.options =~ '--color light'
 
   let g:fzf_colors = { 'fg': ['fg', 'Error'] }
   let opts = fzf#wrap({})
   Assert opts.options =~ '^--color=fg:'
 
+Execute (fzf#shellescape with sh):
+  AssertEqual '''''', fzf#shellescape('', 'sh')
+  AssertEqual '''\''', fzf#shellescape('\', 'sh')
+  AssertEqual '''""''', fzf#shellescape('""', 'sh')
+  AssertEqual '''foobar>''', fzf#shellescape('foobar>', 'sh')
+  AssertEqual '''\\\"\\\''', fzf#shellescape('\\\"\\\', 'sh')
+  AssertEqual '''echo ''\''''a''\'''' && echo ''\''''b''\''''''', fzf#shellescape('echo ''a'' && echo ''b''', 'sh')
+
+Execute (fzf#shellescape with cmd.exe):
+  AssertEqual '^"^"', fzf#shellescape('', 'cmd.exe')
+  AssertEqual '^"\\^"', fzf#shellescape('\', 'cmd.exe')
+  AssertEqual '^"\^"\^"^"', fzf#shellescape('""', 'cmd.exe')
+  AssertEqual '^"foobar^>^"', fzf#shellescape('foobar>', 'cmd.exe')
+  AssertEqual '^"\\\\\\\^"\\\\\\^"', fzf#shellescape('\\\"\\\', 'cmd.exe')
+  AssertEqual '^"echo ''a'' ^&^& echo ''b''^"', fzf#shellescape('echo ''a'' && echo ''b''', 'cmd.exe')
+
+  AssertEqual '^"C:\Program Files ^(x86^)\\^"', fzf#shellescape('C:\Program Files (x86)\', 'cmd.exe')
+  AssertEqual '^"C:/Program Files ^(x86^)/^"', fzf#shellescape('C:/Program Files (x86)/', 'cmd.exe')
+  AssertEqual '^"%%USERPROFILE%%^"', fzf#shellescape('%USERPROFILE%', 'cmd.exe')
+
 Execute (Cleanup):
   unlet g:dir
   Restore

uninstall

@@ -1,12 +1,45 @@
 #!/usr/bin/env bash
 
-confirm() {
+xdg=0
-  while [ 1 ]; do
+prefix='~/.fzf'
-    read -p "$1" -n 1 -r
+prefix_expand=~/.fzf
-    echo
+fish_dir=${XDG_CONFIG_HOME:-$HOME/.config}/fish
-    if [[ "$REPLY" =~ ^[Yy] ]]; then
+
+help() {
+  cat << EOF
+usage: $0 [OPTIONS]
+
+    --help               Show this message
+    --xdg                Remove files generated under \$XDG_CONFIG_HOME/fzf
+EOF
+}
+
+for opt in "$@"; do
+  case $opt in
+    --help)
+      help
+      exit 0
+      ;;
+    --xdg)
+      xdg=1
+      prefix='"${XDG_CONFIG_HOME:-$HOME/.config}"/fzf/fzf'
+      prefix_expand=${XDG_CONFIG_HOME:-$HOME/.config}/fzf/fzf
+      ;;
+    *)
+      echo "unknown option: $opt"
+      help
+      exit 1
+      ;;
+  esac
+done
+
+ask() {
+  while true; do
+    read -p "$1 ([y]/n) " -r
+    REPLY=${REPLY:-"y"}
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
       return 0
-    elif [[ "$REPLY" =~ ^[Nn] ]]; then
+    elif [[ $REPLY =~ ^[Nn]$ ]]; then
       return 1
     fi
   done
@@ -40,7 +73,7 @@ remove_line() {
     content=$(sed 's/^[0-9]*://' <<< "$line")
     match=1
     echo    "  - Line #$line_no: $content"
-    [ "$content" = "$1" ] || confirm "    - Remove (y/n) ? "
+    [ "$content" = "$1" ] || ask "    - Remove?"
     if [ $? -eq 0 ]; then
       awk -v n=$line_no 'NR == n {next} {print}' "$src" > "$src.bak" &&
         mv "$src.bak" "$src" || break
@@ -55,25 +88,30 @@ remove_line() {
 }
 
 for shell in bash zsh; do
-  remove ~/.fzf.${shell}
+  shell_config=${prefix_expand}.${shell}
+  remove "${shell_config}"
   remove_line ~/.${shell}rc \
-    "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" \
+    "[ -f ${prefix}.${shell} ] && source ${prefix}.${shell}" \
-    "source ~/.fzf.${shell}"
+    "source ${prefix}.${shell}"
 done
 
-bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
+bind_file="${fish_dir}/functions/fish_user_key_bindings.fish"
 if [ -f "$bind_file" ]; then
   remove_line "$bind_file" "fzf_key_bindings"
 fi
 
-if [ -d ~/.config/fish/functions ]; then
+if [ -d "${fish_dir}/functions" ]; then
-  remove ~/.config/fish/functions/fzf.fish
+  remove "${fish_dir}/functions/fzf.fish"
-  remove ~/.config/fish/functions/fzf_key_bindings.fish
+  remove "${fish_dir}/functions/fzf_key_bindings.fish"
 
-  if [ "$(ls -A ~/.config/fish/functions)" ]; then
+  if [ "$(ls -A "${fish_dir}/functions")" ]; then
-    echo "Can't delete non-empty directory: \"~/.config/fish/functions\""
+    echo "Can't delete non-empty directory: \"${fish_dir}/functions\""
   else
-    rmdir ~/.config/fish/functions
+    rmdir "${fish_dir}/functions"
   fi
 fi
 
+config_dir=$(dirname "$prefix_expand")
+if [[ "$xdg" = 1 ]] && [[ "$config_dir" = */fzf ]] && [[ -d "$config_dir" ]]; then
+  rmdir "$config_dir"
+fi