0.23.1

# Should properly escape arguments
    FZF_DEFAULT_OPTS='--prompt "\$a`b\"c"' fzf-tmux --header $'$a\nb"c`d'

.gitignore

@@ -8,3 +8,4 @@ doc/tags
 vendor
 gopath
 *.zwc
+fzf

.rubocop.yml

@@ -0,0 +1,24 @@
+Layout/LineLength:
+  Enabled: false
+Metrics:
+  Enabled: false
+Lint/ShadowingOuterLocalVariable:
+  Enabled: false
+Style/MethodCallWithArgsParentheses:
+  Enabled: true
+  IgnoredMethods:
+    - assert
+    - exit
+    - paste
+    - puts
+    - raise
+    - refute
+    - require
+    - send_keys
+  IgnoredPatterns:
+    - ^assert_
+    - ^refute_
+Style/NumericPredicate:
+  Enabled: false
+Style/WordArray:
+  MinSize: 1

.travis.yml

@@ -1,27 +1,28 @@
 language: go
-dist: xenial
+go:
+  - "1.14"
+env: GO111MODULE=on
+os:
+  - linux
+  - osx
+dist: bionic
 addons:
   apt:
-    sources:
-      - sourceline: "ppa:pi-rho/dev"
-      - sourceline: "ppa:fish-shell/release-2"
     packages:
-    - tmux
-    - zsh
-    - fish
-
-env:
-  - GO111MODULE=on
-
-jobs:
-  include:
-    - stage: unittest
-      go: "1.13.x"
-      script: make && make test
-
-    - stage: cli
-      go: "1.13.x"
-      rvm: "2.5"
-      script: |
-        make install && ./install --all && tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]
-
+      - fish
+      - zsh
+    sources:
+      sourceline: ppa:fish-shell/release-3
+  homebrew:
+    packages:
+      - fish
+      - tmux
+    update: true
+install: gem install minitest rubocop rubocop-minitest rubocop-performance
+script:
+  - make test
+  # LC_ALL=C to avoid escape codes in
+  # printf %q $'\355\205\214\354\212\244\355\212\270' on macOS. Bash on
+  # macOS is built without HANDLE_MULTIBYTE?
+  - make install && ./install --all && LC_ALL=C tmux new-session -d && ruby test/test_go.rb --verbose
+  - rubocop --require rubocop-minitest --require rubocop-performance

CHANGELOG.md

@@ -1,6 +1,151 @@
 CHANGELOG
 =========
 
+0.23.1
+------
+- Added `--preview-window` options for disabling flags
+    - `nocycle`
+    - `nohidden`
+    - `nowrap`
+    - `default`
+- Built with Go 1.14.9 due to performance regression
+    - https://github.com/golang/go/issues/40727
+
+0.23.0
+------
+- Support preview scroll offset relative to window height
+  ```sh
+  git grep --line-number '' |
+    fzf --delimiter : \
+        --preview 'bat --style=numbers --color=always --highlight-line {2} {1}' \
+        --preview-window +{2}-/2
+  ```
+- Added `--preview-window` option for sharp edges (`--preview-window sharp`)
+- Added `--preview-window` option for cyclic scrolling (`--preview-window cycle`)
+- Reduced vertical padding around the preview window when `--preview-window
+  noborder` is used
+- Added actions for preview window
+    - `preview-half-page-up`
+    - `preview-half-page-down`
+- Vim
+    - Popup width and height can be given in absolute integer values
+    - Added `fzf#exec()` function for getting the path of fzf executable
+        - It also downloads the latest binary if it's not available by running
+          `./install --bin`
+- Built with Go 1.15.2
+    - We no longer provide 32-bit binaries
+
+0.22.0
+------
+- Added more options for `--bind`
+    - `backward-eof` event
+      ```sh
+      # Aborts when you delete backward when the query prompt is already empty
+      fzf --bind backward-eof:abort
+      ```
+    - `refresh-preview` action
+      ```sh
+      # Rerun preview command when you hit '?'
+      fzf --preview 'echo $RANDOM' --bind '?:refresh-preview'
+      ```
+    - `preview` action
+      ```sh
+      # Default preview command with an extra preview binding
+      fzf --preview 'file {}' --bind '?:preview:cat {}'
+
+      # A preview binding with no default preview command
+      # (Preview window is initially empty)
+      fzf --bind '?:preview:cat {}'
+
+      # Preview window hidden by default, it appears when you first hit '?'
+      fzf --bind '?:preview:cat {}' --preview-window hidden
+      ```
+- Added preview window option for setting the initial scroll offset
+  ```sh
+  # Initial scroll offset is set to the line number of each line of
+  # git grep output *minus* 5 lines
+  git grep --line-number '' |
+    fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5
+  ```
+- Added support for ANSI colors in `--prompt` string
+- Smart match of accented characters
+    - An unaccented character in the query string will match both accented and
+      unaccented characters, while an accented character will only match
+      accented characters. This is similar to how "smart-case" match works.
+- Vim plugin
+    - `tmux` layout option for using fzf-tmux
+      ```vim
+      let g:fzf_layout = { 'tmux': '-p90%,60%' }
+      ```
+
+0.21.1
+------
+- Shell extension
+    - CTRL-R will remove duplicate commands
+- fzf-tmux
+    - Supports tmux popup window (require tmux 3.2 or above)
+        - ```sh
+          # 50% width and height
+          fzf-tmux -p
+
+          # 80% width and height
+          fzf-tmux -p 80%
+
+          # 80% width and 40% height
+          fzf-tmux -p 80%,40%
+          fzf-tmux -w 80% -h 40%
+
+          # Window position
+          fzf-tmux -w 80% -h 40% -x 0 -y 0
+          fzf-tmux -w 80% -h 40% -y 1000
+
+          # Write ordinary fzf options after --
+          fzf-tmux -p -- --reverse --info=inline --margin 2,4 --border
+          ```
+        - On macOS, you can build the latest tmux from the source with
+          `brew install tmux --HEAD`
+- Bug fixes
+    - Fixed Windows file traversal not to include directories
+    - Fixed ANSI colors with `--keep-right`
+    - Fixed _fzf_complete for zsh
+- Built with Go 1.14.1
+
+0.21.0
+------
+- `--height` option is now available on Windows as well (@kelleyma49)
+- Added `--pointer` and `--marker` options
+- Added `--keep-right` option that keeps the right end of the line visible
+  when it's too long
+- Style changes
+    - `--border` will now print border with rounded corners around the
+      finder instead of printing horizontal lines above and below it.
+      The previous style is available via `--border=horizontal`
+    - Unicode spinner
+- More keys and actions for `--bind`
+- Added PowerShell script for downloading Windows binary
+- Vim plugin: Built-in floating windows support
+  ```vim
+  let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+  ```
+- bash: Various improvements in key bindings (CTRL-T, CTRL-R, ALT-C)
+    - CTRL-R will start with the current command-line as the initial query
+    - CTRL-R properly supports multi-line commands
+- Fuzzy completion API changed
+  ```sh
+  # Previous: fzf arguments given as a single string argument
+  # - This style is still supported, but it's deprecated
+  _fzf_complete "--multi --reverse --prompt=\"doge> \"" "$@" < <(
+    echo foo
+  )
+
+  # New API: multiple fzf arguments before "--"
+  # - Easier to write multiple options
+  _fzf_complete --multi --reverse --prompt="doge> " -- "$@" < <(
+    echo foo
+  )
+  ```
+- Bug fixes and improvements
+
 0.20.0
 ------
 - Customizable preview window color (`preview-fg` and `preview-bg` for `--color`)

Dockerfile

@@ -1,5 +1,5 @@
 FROM archlinux/base:latest
-RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make
+RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make gcc
 RUN gem install --no-document minitest
 RUN echo '. /usr/share/bash-completion/completions/git' >> ~/.bashrc
 RUN echo '. ~/.bashrc' >> ~/.bash_profile

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2013-2020 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

Makefile

@@ -6,9 +6,8 @@ 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)"
+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
@@ -16,7 +15,6 @@ 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
@@ -30,10 +28,6 @@ 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)
@@ -56,13 +50,11 @@ target:
 	mkdir -p $@
 
 ifeq ($(GOOS),windows)
-release: target/$(BINARY32) target/$(BINARY64)
-	cd target && cp -f $(BINARY32) fzf.exe && zip $(RELEASE32).zip fzf.exe
+release: target/$(BINARY64)
 	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 $(RELEASE32).tgz fzf
+release: target/$(BINARY64) target/$(BINARYARM5) target/$(BINARYARM6) target/$(BINARYARM7) target/$(BINARYARM8) target/$(BINARYPPC64LE)
 	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 $(RELEASEARM6).tgz fzf
@@ -71,8 +63,7 @@ release: target/$(BINARY32) target/$(BINARY64) target/$(BINARYARM5) target/$(BIN
 	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 $(RELEASE32).tgz fzf
+release: target/$(BINARY64)
 	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
 	cd target && rm -f fzf
 endif
@@ -96,9 +87,6 @@ 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 $@
 

README-VIM.md

@@ -1,6 +1,50 @@
 FZF Vim integration
 ===================
 
+Installation
+------------
+
+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 Homebrew
+set rtp+=/usr/local/opt/fzf
+
+" If installed using git
+set rtp+=~/.fzf
+```
+
+If you use [vim-plug](https://github.com/junegunn/vim-plug), the same can be
+written as:
+
+```vim
+" If installed using Homebrew
+Plug '/usr/local/opt/fzf'
+
+" If installed using git
+Plug '~/.fzf'
+```
+
+But if you want the latest Vim plugin file from GitHub rather than the one
+included in the package, write:
+
+```vim
+Plug 'junegunn/fzf'
+```
+
+The Vim plugin will pick up fzf binary available on the system. If fzf is not
+found on `$PATH`, it will ask you if it should download the latest binary for
+you.
+
+To make sure that you have the latest version of the binary, set up
+post-update hook like so:
+
+```vim
+Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+```
+
 Summary
 -------
 
@@ -83,8 +127,9 @@ let g:fzf_action = {
   \ 'ctrl-v': 'vsplit' }
 
 " Default fzf layout
-" - down / up / left / right
-let g:fzf_layout = { 'down': '~40%' }
+" - down / up / left / right / window
+let g:fzf_layout = { 'down': '40%' }
+let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
 " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
 let g:fzf_layout = { 'window': 'enew' }
@@ -115,6 +160,53 @@ let g:fzf_colors =
 let g:fzf_history_dir = '~/.local/share/fzf-history'
 ```
 
+##### Explanation of `g:fzf_colors`
+
+`g:fzf_colors` is a dictionary mapping fzf elements to a color specification
+list:
+
+    element: [ component, group1 [, group2, ...] ]
+
+- `element` is an fzf element to apply a color to:
+
+  | Element               | Description                                           |
+  | ---                   | ---                                                   |
+  | `fg`  / `bg`  / `hl`  | Item (foreground / background / highlight)            |
+  | `fg+` / `bg+` / `hl+` | Current item (foreground / background / highlight)    |
+  | `hl`  / `hl+`         | Highlighted substrings (normal / current)             |
+  | `gutter`              | Background of the gutter on the left                  |
+  | `pointer`             | Pointer to the current line (`>`)                     |
+  | `marker`              | Multi-select marker (`>`)                             |
+  | `border`              | Border around the window (`--border` and `--preview`) |
+  | `header`              | Header (`--header` or `--header-lines`)               |
+  | `info`                | Info line (match counters)                            |
+  | `spinner`             | Streaming input indicator                             |
+  | `prompt`              | Prompt before query (`> `)                            |
+
+- `component` specifies the component (`fg` / `bg`) from which to extract the
+  color when considering each of the following highlight groups
+
+- `group1 [, group2, ...]` is a list of highlight groups that are searched (in
+  order) for a matching color definition
+
+For example, consider the following specification:
+
+```vim
+  'prompt':  ['fg', 'Conditional', 'Comment'],
+```
+
+This means we color the **prompt**
+- using the `fg` attribute of the `Conditional` if it exists,
+- otherwise use the `fg` attribute of the `Comment` highlight group if it exists,
+- otherwise fall back to the default color settings for the **prompt**.
+
+You can examine the color option generated according the setting by printing
+the result of `fzf#wrap()` function like so:
+
+```vim
+:echo fzf#wrap()
+```
+
 `fzf#run`
 ---------
 
@@ -183,7 +275,9 @@ The following table summarizes the available options.
 | `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%`)                  |
+| `tmux`                     | string        | (Layout) fzf-tmux options (e.g. `-p90%,60%`)                          |
 | `window` (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g. `vertical aboveleft 30new`) |
+| `window` (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g. `{'width': 0.9, 'height': 0.6}`) |
 
 `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.
@@ -193,6 +287,19 @@ call fzf#run({'options': '--reverse --prompt "C:\\Program Files\\"'})
 call fzf#run({'options': ['--reverse', '--prompt', 'C:\Program Files\']})
 ```
 
+When `window` entry is a dictionary, fzf will start in a popup window. The
+following options are allowed:
+
+- Required:
+    - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+    - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
+- Optional:
+    - `yoffset` [float default 0.5 range [0 ~ 1]]
+    - `xoffset` [float default 0.5 range [0 ~ 1]]
+    - `highlight` [string default `'Comment'`]: Highlight group for border
+    - `border` [string default `rounded`]: Border style
+        - `rounded` / `sharp` / `horizontal` / `vertical` / `top` / `bottom` / `left` / `right`
+
 `fzf#wrap`
 ----------
 
@@ -276,29 +383,32 @@ The latest versions of Vim and Neovim include builtin terminal emulator
 - 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
+#### Starting fzf in a popup window
 
 ```vim
-" Using floating windows of Neovim to start fzf
-if has('nvim')
-  let $FZF_DEFAULT_OPTS .= ' --border --margin=0,2'
+" Required:
+" - width [float range [0 ~ 1]] or [integer range [8 ~ ]]
+" - height [float range [0 ~ 1]] or [integer range [4 ~ ]]
+"
+" Optional:
+" - xoffset [float default 0.5 range [0 ~ 1]]
+" - yoffset [float default 0.5 range [0 ~ 1]]
+" - highlight [string default 'Comment']: Highlight group for border
+" - border [string default 'rounded']: Border style
+"   - 'rounded' / 'sharp' / 'horizontal' / 'vertical' / 'top' / 'bottom' / 'left' / 'right'
+let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+```
 
-  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 }
+Alternatively, you can make fzf open in a tmux popup window (requires tmux 3.2
+or above) by putting fzf-tmux options in `tmux` key.
 
-    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()' }
+```vim
+" See `man fzf-tmux` for available options
+if exists('$TMUX')
+  let g:fzf_layout = { 'tmux': '-p90%,60%' }
+else
+  let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 endif
-
 ```
 
 #### Hide statusline
@@ -307,8 +417,8 @@ 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.
+For example, if you use a non-popup layout (e.g. `{'down': '40%'}`) on Neovim,
+you might want to temporarily disable the statusline for a cleaner look.
 
 ```vim
 if has('nvim') && !exists('g:fzf_layout')
@@ -323,4 +433,4 @@ endif
 
 The MIT License (MIT)
 
-Copyright (c) 2019 Junegunn Choi
+Copyright (c) 2013-2020 Junegunn Choi

README.md

@@ -22,41 +22,50 @@ Pros
 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)
+<!-- vim-markdown-toc GFM -->
+
+* [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)
+    * [Custom fuzzy completion](#custom-fuzzy-completion)
+* [Vim plugin](#vim-plugin)
+* [Advanced topics](#advanced-topics)
+  * [Performance](#performance)
+  * [Executing external programs](#executing-external-programs)
+  * [Reloading the candidate list](#reloading-the-candidate-list)
+    * [1. Update the list of processes by pressing CTRL-R](#1-update-the-list-of-processes-by-pressing-ctrl-r)
+    * [2. Switch between sources by pressing CTRL-D or CTRL-F](#2-switch-between-sources-by-pressing-ctrl-d-or-ctrl-f)
+    * [3. Interactive ripgrep integration](#3-interactive-ripgrep-integration)
+  * [Preview window](#preview-window)
+* [Tips](#tips)
+    * [Respecting `.gitignore`](#respecting-gitignore)
+    * [Fish shell](#fish-shell)
+* [Related projects](#related-projects)
+* [License](#license)
+
+<!-- vim-markdown-toc -->
 
 Installation
 ------------
@@ -103,15 +112,18 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 
 ### Using Linux package managers
 
-| 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`  |
+| Package Manager | Linux Distribution      | Command                            |
+| ---             | ---                     | ---                                |
+| APK             | Alpine Linux            | `sudo apk add fzf`                 |
+| APT             | Debian 9+/Ubuntu 19.10+ | `sudo apt-get install fzf`         |
+| Conda           |                         | `conda install -c conda-forge fzf` |
+| DNF             | Fedora                  | `sudo dnf install fzf`             |
+| Nix             | NixOS, etc.             | `nix-env -iA nixpkgs.fzf`          |
+| Pacman          | Arch Linux              | `sudo pacman -S fzf`               |
+| pkg             | FreeBSD                 | `pkg install fzf`                  |
+| pkg_add         | OpenBSD                 | `pkg_add fzf`                      |
+| XBPS            | Void Linux              | `sudo xbps-install -S fzf`         |
+| Zypper          | openSUSE                | `sudo zypper install fzf`          |
 
 Shell extensions (key bindings and fuzzy auto-completion) and Vim/Neovim
 plugin may or may not be enabled by default depending on the package manager.
@@ -137,39 +149,18 @@ page][windows-wiki].
 
 ### 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.
+If you use
+[vim-plug](https://github.com/junegunn/vim-plug), add this line to your Vim
+configuration file:
 
 ```vim
-" If installed using Homebrew
-set rtp+=/usr/local/opt/fzf
-
-" If installed using git
-set rtp+=~/.fzf
+Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
 ```
 
-If you use [vim-plug](https://github.com/junegunn/vim-plug), the same can be
-written as:
+`fzf#install()` makes sure that you have the latest binary, but it's optional,
+so you can omit it if you use a plugin manager that doesn't support hooks.
 
-```vim
-" If installed using Homebrew
-Plug '/usr/local/opt/fzf'
-
-" If installed using git
-Plug '~/.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.
-```
+For more installation options, see [README-VIM.md](README-VIM.md).
 
 Upgrading fzf
 -------------
@@ -180,6 +171,7 @@ method used.
 
 - git: `cd ~/.fzf && git pull && ./install`
 - brew: `brew update; brew reinstall fzf`
+- macports: `sudo port upgrade fzf`
 - chocolatey: `choco upgrade fzf`
 - vim-plug: `:PlugUpdate fzf`
 
@@ -299,8 +291,10 @@ own as well.
 [fzf-tmux](bin/fzf-tmux) is a bash script that opens fzf in a tmux pane.
 
 ```sh
-# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
-#        (-[udlr]: up/down/left/right)
+# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
+
+# See available options
+fzf-tmux --help
 
 # select git branches in horizontal split below (15 lines)
 git branch | fzf-tmux -d 15
@@ -309,7 +303,7 @@ git branch | fzf-tmux -d 15
 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]`
+It will still work even when you're not on tmux, silently ignoring `-[pudlr]`
 options, so you can invariably use `fzf-tmux` in your scripts.
 
 Alternatively, you can use `--height HEIGHT[%]` option not to start fzf in
@@ -336,13 +330,9 @@ fish.
     - 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, you can start fzf in a split pane by setting
-`FZF_TMUX` to 1, and change the height of the pane with `FZF_TMUX_HEIGHT`
-(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
-mode.
+If you're on a tmux session, you can start fzf in a tmux split pane or in
+a tmux popup window by setting `FZF_TMUX_OPTS` (e.g. `-d 40%`).
+See `fzf-tmux --help` for available options.
 
 More tips can be found on [the wiki page](https://github.com/junegunn/fzf/wiki/Configuring-shell-key-bindings).
 
@@ -427,6 +417,21 @@ _fzf_compgen_path() {
 _fzf_compgen_dir() {
   fd --type d --hidden --follow --exclude ".git" . "$1"
 }
+
+# (EXPERIMENTAL) Advanced customization of fzf options via _fzf_comprun function
+# - The first argument to the function is the name of the command.
+# - You should make sure to pass the rest of the arguments to fzf.
+_fzf_comprun() {
+  local command=$1
+  shift
+
+  case "$command" in
+    cd)           fzf "$@" --preview 'tree -C {} | head -200' ;;
+    export|unset) fzf "$@" --preview "eval 'echo \$'{}" ;;
+    ssh)          fzf "$@" --preview 'dig {}' ;;
+    *)            fzf "$@" ;;
+  esac
+}
 ```
 
 #### Supported commands
@@ -436,11 +441,61 @@ On bash, fuzzy completion is enabled only for a predefined set of commands
 commands as well by using `_fzf_setup_completion` helper function.
 
 ```sh
-# usage: _fzf_setup_completion path|dir COMMANDS...
+# usage: _fzf_setup_completion path|dir|var|alias|host COMMANDS...
 _fzf_setup_completion path ag git kubectl
 _fzf_setup_completion dir tree
 ```
 
+#### Custom fuzzy completion
+
+_**(Custom completion API is experimental and subject to change)**_
+
+For a command named _"COMMAND"_, define `_fzf_complete_COMMAND` function using
+`_fzf_complete` helper.
+
+```sh
+# Custom fuzzy completion for "doge" command
+#   e.g. doge **<TAB>
+_fzf_complete_doge() {
+  _fzf_complete --multi --reverse --prompt="doge> " -- "$@" < <(
+    echo very
+    echo wow
+    echo such
+    echo doge
+  )
+}
+```
+
+- The arguments before `--` are the options to fzf.
+- After `--`, simply pass the original completion arguments unchanged (`"$@"`).
+- Then write a set of commands that generates the completion candidates and
+  feed its output to the function using process substitution (`< <(...)`).
+
+zsh will automatically pick up the function using the naming convention but in
+bash you have to manually associate the function with the command using
+`complete` command.
+
+```sh
+[ -n "$BASH" ] && complete -F _fzf_complete_doge -o default -o bashdefault doge
+```
+
+If you need to post-process the output from fzf, define
+`_fzf_complete_COMMAND_post` as follows.
+
+```sh
+_fzf_complete_foo() {
+  _fzf_complete --multi --reverse --header-lines=3 -- "$@" < <(
+    ls -al
+  )
+}
+
+_fzf_complete_foo_post() {
+  awk '{print $NF}'
+}
+
+[ -n "$BASH" ] && complete -F _fzf_complete_foo -o default -o bashdefault foo
+```
+
 Vim plugin
 ----------
 
@@ -481,10 +536,56 @@ fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort
 
 See *KEY BINDINGS* section of the man page for details.
 
+### Reloading the candidate list
+
+By binding `reload` action to a key or an event, you can make fzf dynamically
+reload the candidate list. See https://github.com/junegunn/fzf/issues/1750 for
+more details.
+
+#### 1. Update the list of processes by pressing CTRL-R
+
+```sh
+FZF_DEFAULT_COMMAND='ps -ef' \
+  fzf --bind 'ctrl-r:reload($FZF_DEFAULT_COMMAND)' \
+      --header 'Press CTRL-R to reload' --header-lines=1 \
+      --height=50% --layout=reverse
+```
+
+#### 2. Switch between sources by pressing CTRL-D or CTRL-F
+
+```sh
+FZF_DEFAULT_COMMAND='find . -type f' \
+  fzf --bind 'ctrl-d:reload(find . -type d),ctrl-f:reload($FZF_DEFAULT_COMMAND)' \
+      --height=50% --layout=reverse
+```
+
+#### 3. Interactive ripgrep integration
+
+The following example uses fzf as the selector interface for ripgrep. We bound
+`reload` action to `change` event, so every time you type on fzf, ripgrep
+process will restart with the updated query string denoted by the placeholder
+expression `{q}`. Also, note that we used `--phony` option so that fzf doesn't
+perform any secondary filtering.
+
+```sh
+INITIAL_QUERY=""
+RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \
+  fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+      --ansi --phony --query "$INITIAL_QUERY" \
+      --height=50% --layout=reverse
+```
+
+If ripgrep doesn't find any matches, it will exit with a non-zero exit status,
+and fzf will warn you about it. To suppress the warning message, we added
+`|| true` to the command, so that it always exits with 0.
+
 ### Preview window
 
-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.
+When the `--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. 
+Your `$SHELL` is used to execute the command with `$SHELL -c COMMAND`. 
+The window can be scrolled using the mouse or custom key bindings.
 
 ```bash
 # {} is replaced to the single-quoted string of the focused line
@@ -500,13 +601,12 @@ fzf --preview 'head -100 {}'
 ```
 
 Preview window supports ANSI colors, so you can use any program that
-syntax-highlights the content of a file.
-
-- Bat: https://github.com/sharkdp/bat
-- Highlight: http://www.andre-simon.de/doku/highlight/en/highlight.php
+syntax-highlights the content of a file, such as 
+[Bat](https://github.com/sharkdp/bat) or
+[Highlight](http://www.andre-simon.de/doku/highlight/en/highlight.php):
 
 ```bash
-fzf --preview 'bat --style=numbers --color=always {} | head -500'
+fzf --preview 'bat --style=numbers --color=always --line-range :500 {}'
 ```
 
 You can customize the size, position, and border of the preview window using
@@ -535,7 +635,7 @@ not a good idea to add `--preview` option to your `$FZF_DEFAULT_OPTS`**.
 # *********************
 # ** DO NOT DO THIS! **
 # *********************
-export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always {} | head -500"'
+export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always --line-range :500 {}"'
 
 # bat doesn't work with any input other than the list of files
 ps -ef | fzf
@@ -605,4 +705,4 @@ https://github.com/junegunn/fzf/wiki/Related-projects
 
 The MIT License (MIT)
 
-Copyright (c) 2019 Junegunn Choi
+Copyright (c) 2013-2020 Junegunn Choi

bin/fzf-tmux

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # fzf-tmux: starts fzf in a tmux pane
-# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
 fail() {
   >&2 echo "$1"
@@ -10,6 +10,7 @@ fail() {
 fzf="$(command -v fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
 [[ -x "$fzf" ]] || fail 'fzf executable not found'
 
+tmux_args=()
 args=()
 opt=""
 skip=""
@@ -20,15 +21,23 @@ term=""
 [[ -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]
+  >&2 echo 'usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
-  Layout
-    -u [HEIGHT[%]]  Split above (up)
-    -d [HEIGHT[%]]  Split below (down)
-    -l [WIDTH[%]]   Split left
-    -r [WIDTH[%]]   Split right
+  LAYOUT OPTIONS:
+    (default layout: -d 50%)
 
-    (default: -d 50%)
+    Popup window (requires tmux 3.2 or above):
+      -p [WIDTH[%][,HEIGHT[%]]]  (default: 50%)
+      -w WIDTH[%]
+      -h HEIGHT[%]
+      -x COL
+      -y ROW
+
+    Split pane:
+      -u [HEIGHT[%]]             Split above (up)
+      -d [HEIGHT[%]]             Split below (down)
+      -l [WIDTH[%]]              Split left
+      -r [WIDTH[%]]              Split right
 '
   exit
 }
@@ -47,8 +56,10 @@ while [[ $# -gt 0 ]]; do
       echo "fzf-tmux (with fzf $("$fzf" --version))"
       exit
       ;;
-    -w*|-h*|-d*|-u*|-r*|-l*)
-      if [[ "$arg" =~ ^.[lrw] ]]; then
+    -p*|-w*|-h*|-x*|-y*|-d*|-u*|-r*|-l*)
+      if [[ "$arg" =~ ^-[pwhxy] ]]; then
+        [[ "$opt" =~ "-K -E" ]] || opt="-K -E"
+      elif [[ "$arg" =~ ^.[lr] ]]; then
         opt="-h"
         if [[ "$arg" =~ ^.l ]]; then
           opt="$opt -d"
@@ -66,7 +77,7 @@ while [[ $# -gt 0 ]]; do
       if [[ ${#arg} -gt 2 ]]; then
         size="${arg:2}"
       else
-        if [[ "$1" =~ ^[0-9]+%?$ ]]; then
+        if [[ "$1" =~ ^[0-9%,]+$ ]] || [[ "$1" =~ ^[A-Z]$ ]]; then
           size="$1"
           shift
         else
@@ -74,7 +85,15 @@ while [[ $# -gt 0 ]]; do
         fi
       fi
 
-      if [[ "$size" =~ %$ ]]; then
+      if [[ "$arg" =~ ^-p ]]; then
+        if [[ -n "$size" ]]; then
+          w=${size%%,*}
+          h=${size##*,}
+          opt="$opt -w$w -h$h"
+        fi
+      elif [[ "$arg" =~ ^-[whxy] ]]; then
+        opt="$opt ${arg:0:2}$size"
+      elif [[ "$size" =~ %$ ]]; then
         size=${size:0:((${#size}-1))}
         if [[ -n "$swap" ]]; then
           opt="$opt -p $(( 100 - size ))"
@@ -100,6 +119,8 @@ while [[ $# -gt 0 ]]; do
       # "--" can be used to separate fzf-tmux options from fzf options to
       # avoid conflicts
       skip=1
+      tmux_args=("${args[@]}")
+      args=()
       continue
       ;;
     *)
@@ -109,17 +130,17 @@ while [[ $# -gt 0 ]]; do
   [[ -n "$skip" ]] && args+=("$arg")
 done
 
-if [[ -z "$TMUX" || "$opt" =~ ^-h && "$columns" -le 40 || ! "$opt" =~ ^-h && "$lines" -le 15 ]]; then
+if [[ -z "$TMUX" ]]; then
   "$fzf" "${args[@]}"
   exit $?
 fi
 
 # --height option is not allowed
-args+=("--no-height")
+args=("${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
+# Handle zoomed tmux pane without popup options by moving it to a temp window
+if [[ ! "$opt" =~ "-K -E" ]] && tmux list-panes -F '#F' | grep -q Z; then
+  zoomed_without_popup=1
   original_window=$(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'")
   tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
@@ -133,16 +154,17 @@ argsf="${TMPDIR:-/tmp}/fzf-args-$id"
 fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
 fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
 fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
+tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
 cleanup() {
   \rm -f $argsf $fifo1 $fifo2 $fifo3
 
   # Restore tmux window options
   if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
-    eval "tmux ${tmux_win_opts[@]}"
+    eval "tmux ${tmux_win_opts[*]}"
   fi
 
-  # Remove temp window if we were zoomed
-  if [[ -n "$zoomed" ]]; then
+  # Remove temp window if we were zoomed without popup options
+  if [[ -n "$zoomed_without_popup" ]]; then
     tmux display-message -p "#{window_id}" > /dev/null
     tmux swap-pane -t $original_window \; \
       select-window -t $original_window \; \
@@ -158,44 +180,45 @@ cleanup() {
 trap 'cleanup 1' SIGUSR1
 trap 'cleanup' EXIT
 
-envs="env TERM=$TERM "
+envs="export TERM=$TERM "
+[[ "$opt" =~ "-K -E" ]] && FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
 [[ -n "$FZF_DEFAULT_OPTS"    ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
 [[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
-
-mkfifo -m o+w $fifo2
-mkfifo -m o+w $fifo3
+echo "$envs;" > "$argsf"
 
 # Build arguments to fzf
-opts=""
-for arg in "${args[@]}"; do
-  arg="${arg//\\/\\\\}"
-  arg="${arg//\"/\\\"}"
-  arg="${arg//\`/\\\`}"
-  arg="${arg//$/\\$}"
-  opts="$opts \"$arg\""
-done
+opts=$(printf "%q " "${args[@]}")
 
 pppid=$$
-echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" > $argsf
+echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" >> $argsf
 close="; trap - EXIT SIGINT SIGTERM $close"
 
-tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
+export TMUX=$(cut -d , -f 1,2 <<< "$TMUX")
+mkfifo -m o+w $fifo2
+if [[ "$opt" =~ "-K -E" ]]; then
+  cat $fifo2 &
+  if [[ -n "$term" ]] || [[ -t 0 ]]; then
+    cat <<< "\"$fzf\" $opts > $fifo2; out=\$? $close; exit \$out" >> $argsf
+  else
+    mkfifo $fifo1
+    cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; out=\$? $close; exit \$out" >> $argsf
+    cat <&0 > $fifo1 &
+  fi
+  tmux popup -d "$PWD" "${tmux_args[@]}" $opt -R "bash $argsf" > /dev/null 2>&1
+  exit $?
+fi
 
+mkfifo -m o+w $fifo3
 if [[ -n "$term" ]] || [[ -t 0 ]]; then
   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 $opt "$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" >> $argsf
-  TMUX=$(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 -c 'exec -a fzf bash $argsf'" $swap \
-    > /dev/null 2>&1
   cat <&0 > $fifo1 &
 fi
+tmux set-window-option synchronize-panes off \;\
+  set-window-option remain-on-exit off \;\
+  split-window -c "$PWD" $opt "${tmux_args[@]}" "bash -c 'exec -a fzf bash $argsf'" $swap \
+  > /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
 cat $fifo2
 exit "$(cat $fifo3)"
-

doc/fzf.txt

@@ -1,17 +1,19 @@
-fzf.txt	fzf	Last change: November 23 2019
+fzf.txt	fzf	Last change: April 4 2020
 FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
 ==============================================================================
 
   FZF Vim integration
+    Installation
     Summary
     :FZF[!]
       Configuration
         Examples
+          Explanation of g:fzf_colors
     fzf#run
     fzf#wrap
     Tips
       fzf inside terminal buffer
-        Starting fzf in Neovim floating window
+        Starting fzf in a popup window
         Hide statusline
     License
 
@@ -19,6 +21,46 @@ FZF VIM INTEGRATION                                        *fzf-vim-integration*
 ==============================================================================
 
 
+INSTALLATION                                                  *fzf-installation*
+==============================================================================
+
+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.
+>
+    " If installed using Homebrew
+    set rtp+=/usr/local/opt/fzf
+
+    " If installed using git
+    set rtp+=~/.fzf
+<
+If you use {vim-plug}{1}, the same can be written as:
+>
+    " If installed using Homebrew
+    Plug '/usr/local/opt/fzf'
+
+    " If installed using git
+    Plug '~/.fzf'
+<
+But if you want the latest Vim plugin file from GitHub rather than the one
+included in the package, write:
+>
+    Plug 'junegunn/fzf'
+<
+The Vim plugin will pick up fzf binary available on the system. If fzf is not
+found on `$PATH`, it will ask you if it should download the latest binary for
+you.
+
+To make sure that you have the latest version of the binary, set up
+post-update hook like so:
+
+                                                                   *fzf#install*
+>
+    Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+<
+                                      {1} https://github.com/junegunn/vim-plug
+
+
 SUMMARY                                                            *fzf-summary*
 ==============================================================================
 
@@ -38,12 +80,12 @@ the basic file selector command built on top of them.
    - 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.
+   - If you're looking for more such commands, check out {fzf.vim}{2} 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
+                                       {2} https://github.com/junegunn/fzf.vim
 
 
 :FZF[!]
@@ -112,8 +154,9 @@ Examples~
       \ 'ctrl-v': 'vsplit' }
 
     " Default fzf layout
-    " - down / up / left / right
+    " - down / up / left / right / window
     let g:fzf_layout = { 'down': '~40%' }
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
     " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
     let g:fzf_layout = { 'window': 'enew' }
@@ -144,6 +187,51 @@ Examples~
     let g:fzf_history_dir = '~/.local/share/fzf-history'
 <
 
+Explanation of g:fzf_colors~
+                                                 *fzf-explanation-of-gfzfcolors*
+
+`g:fzf_colors` is a dictionary mapping fzf elements to a color specification
+list:
+>
+    element: [ component, group1 [, group2, ...] ]
+<
+ - `element` is an fzf element to apply a color to:
+
+ ----------------------+------------------------------------------------------
+ Element               | Description                                          ~
+ ----------------------+------------------------------------------------------
+  `fg`   /  `bg`   /  `hl`   | Item (foreground / background / highlight)
+  `fg+`  /  `bg+`  /  `hl+`  | Current item (foreground / background / highlight)
+  `hl`   /  `hl+`          | Highlighted substrings (normal / current)
+  `gutter`               | Background of the gutter on the left
+  `pointer`              | Pointer to the current line ( `>` )
+  `marker`               | Multi-select marker ( `>` )
+  `border`               | Border around the window ( `--border`  and  `--preview` )
+  `header`               | Header ( `--header`  or  `--header-lines` )
+  `info`                 | Info line (match counters)
+  `spinner`              | Streaming input indicator
+  `prompt`               | Prompt before query ( `> ` )
+ ----------------------+------------------------------------------------------
+ - `component` specifies the component (`fg` / `bg`) from which to extract the
+   color when considering each of the following highlight groups
+ - `group1 [, group2, ...]` is a list of highlight groups that are searched (in
+   order) for a matching color definition
+
+For example, consider the following specification:
+>
+      'prompt':  ['fg', 'Conditional', 'Comment'],
+<
+This means we color the prompt - using the `fg` attribute of the `Conditional`
+if it exists, - otherwise use the `fg` attribute of the `Comment` highlight
+group if it exists, - otherwise fall back to the default color settings for
+the prompt.
+
+You can examine the color option generated according the setting by printing
+the result of `fzf#wrap()` function like so:
+>
+    :echo fzf#wrap()
+<
+
 FZF#RUN
 ==============================================================================
 
@@ -203,7 +291,9 @@ The following table summarizes the available options.
   `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%` )
+  `tmux`                      | string        | (Layout) fzf-tmux options (e.g.  `-p90%,60%` )
   `window`  (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g.  `vertical aboveleft 30new` )
+  `window`  (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g.  `{'width': 0.9, 'height': 0.6}` )
  ---------------------------+---------------+----------------------------------------------------------------------
 
 `options` entry can be either a string or a list. For simple cases, string
@@ -212,6 +302,19 @@ 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\']})
 <
+When `window` entry is a dictionary, fzf will start in a popup window. The
+following options are allowed:
+
+ - Required:
+   - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+   - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
+ - Optional:
+   - `yoffset` [float default 0.5 range [0 ~ 1]]
+   - `xoffset` [float default 0.5 range [0 ~ 1]]
+   - `highlight` [string default `'Comment'`]: Highlight group for border
+   - `border` [string default `rounded`]: Border style
+     - `rounded` / `sharp` / `horizontal` / `vertical` / `top` / `bottom` / `left` / `right`
+
 
 FZF#WRAP
 ==============================================================================
@@ -291,29 +394,30 @@ The latest versions of Vim and Neovim include builtin terminal emulator
    - `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*
+Starting fzf in a popup window~
+                                            *fzf-starting-fzf-in-a-popup-window*
 >
-    " Using floating windows of Neovim to start fzf
-    if has('nvim')
-      let $FZF_DEFAULT_OPTS .= ' --border --margin=0,2'
-
-      function! FloatingFZF()
-        let width = float2nr(&columns * 0.9)
-        let height = float2nr(&lines * 0.6)
-        let opts = { 'relative': 'editor',
-                   \ 'row': (&lines - height) / 2,
-                   \ 'col': (&columns - width) / 2,
-                   \ 'width': width,
-                   \ 'height': height }
-
-        let win = nvim_open_win(nvim_create_buf(v:false, v:true), v:true, opts)
-        call setwinvar(win, '&winhighlight', 'NormalFloat:Normal')
-      endfunction
-
-      let g:fzf_layout = { 'window': 'call FloatingFZF()' }
+    " Required:
+    " - width [float range [0 ~ 1]]
+    " - height [float range [0 ~ 1]]
+    "
+    " Optional:
+    " - xoffset [float default 0.5 range [0 ~ 1]]
+    " - yoffset [float default 0.5 range [0 ~ 1]]
+    " - highlight [string default 'Comment']: Highlight group for border
+    " - border [string default 'rounded']: Border style
+    "   - 'rounded' / 'sharp' / 'horizontal' / 'vertical' / 'top' / 'bottom' / 'left' / 'right'
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+<
+Alternatively, you can make fzf open in a tmux popup window (requires tmux 3.2
+or above) by putting fzf-tmux options in `tmux` key.
+>
+    " See `man fzf-tmux` for available options
+    if exists('$TMUX')
+      let g:fzf_layout = { 'tmux': '-p90%,60%' }
+    else
+      let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
     endif
-
 <
 
 Hide statusline~
@@ -323,8 +427,9 @@ 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.
+For example, if you use a non-popup layout (e.g. `{'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
@@ -338,7 +443,7 @@ LICENSE                                                            *fzf-license*
 
 The MIT License (MIT)
 
-Copyright (c) 2019 Junegunn Choi
+Copyright (c) 2013-2020 Junegunn Choi
 
 ==============================================================================
 vim:tw=78:sw=2:ts=2:ft=help:norl:nowrap:

go.mod

@@ -1,19 +1,15 @@
 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
+	github.com/gdamore/tcell v1.4.0
+	github.com/lucasb-eyer/go-colorful v1.0.3 // indirect
+	github.com/mattn/go-isatty v0.0.12
+	github.com/mattn/go-runewidth v0.0.8
+	github.com/mattn/go-shellwords v1.0.9
+	github.com/saracen/walker v0.0.0-20191201085201-324a081bae7e
+	golang.org/x/crypto v0.0.0-20200128174031-69ecbb4d6d5d
+	golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5
+	golang.org/x/text v0.3.2 // indirect
 )
 
 go 1.13

go.sum

@@ -1,26 +1,45 @@
-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=
+github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/gdamore/tcell v1.4.0 h1:vUnHwJRvcPQa3tzi+0QI4U9JINXYJlOz9yiaiPQ2wMU=
+github.com/gdamore/tcell v1.4.0/go.mod h1:vxEiSDZdW3L+Uhjii9c3375IlDmR05bzxY404ZVSMo0=
+github.com/lucasb-eyer/go-colorful v1.0.2 h1:mCMFu6PgSozg9tDNMMK3g18oJBX7oYGrC09mS6CXfO4=
+github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
+github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
+github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-runewidth v0.0.4 h1:2BvfKmzob6Bmd4YsL0zygOqfdFnK7GR4QL06Do4/p7Y=
+github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
+github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuujKs0=
+github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-shellwords v1.0.9 h1:eaB5JspOwiKKcHdqcjbfe5lA9cNn/4NRRtddXJCimqk=
+github.com/mattn/go-shellwords v1.0.9/go.mod h1:EZzvwXDESEeg03EKmM+RmDnNOPKG4lLtQsUlTZDWQ8Y=
+github.com/saracen/walker v0.0.0-20191201085201-324a081bae7e h1:NO86zOn5ScSKW8wRbMaSIcjDZUFpWdCQQnexRqZ9h9A=
+github.com/saracen/walker v0.0.0-20191201085201-324a081bae7e/go.mod h1:G0Z6yVPru183i2MuRJx1DcR4dgIZtLcTdaaE/pC1BJU=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20200128174031-69ecbb4d6d5d h1:9FCpayM9Egr1baVnV1SX0H87m+XB0B8S0hAMi99X/3U=
+golang.org/x/crypto v0.0.0-20200128174031-69ecbb4d6d5d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756 h1:9nuHUbU8dRnRRfj9KjWUVrJeoexdbeMjttk6Oh1rD10=
+golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5 h1:LfCXLvNmTYH9kEmVgqbnsWfruoXZIrh4YBgqVHtDvw0=
+golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20191011211836-4c025a95b26e h1:1o2bDs9pCd2xFhdwqJTrCIswAeEsn4h/PCNelWpfcsI=
+golang.org/x/tools v0.0.0-20191011211836-4c025a95b26e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.20.0
+version=0.23.1
 auto_completion=
 key_bindings=
 update_config=2
@@ -28,9 +28,6 @@ usage: $0 [OPTIONS]
     --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
 }
 
@@ -56,8 +53,6 @@ for opt in "$@"; do
     --no-completion)   auto_completion=0 ;;
     --update-rc)       update_config=1   ;;
     --no-update-rc)    update_config=0   ;;
-    --32)              binary_arch=386   ;;
-    --64)              binary_arch=amd64 ;;
     --bin)             ;;
     --no-bash)         shells=${shells/bash/} ;;
     --no-zsh)          shells=${shells/zsh/} ;;
@@ -179,24 +174,17 @@ binary_available=1
 binary_error=""
 case "$archi" in
   Darwin\ *64)   download fzf-$version-darwin_${binary_arch:-amd64}.tgz  ;;
-  Darwin\ *86)   download fzf-$version-darwin_${binary_arch:-386}.tgz    ;;
   Linux\ armv5*) download fzf-$version-linux_${binary_arch:-arm5}.tgz    ;;
   Linux\ armv6*) download fzf-$version-linux_${binary_arch:-arm6}.tgz    ;;
   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
@@ -384,7 +372,11 @@ fi
 
 if [ $update_config -eq 1 ]; then
   echo 'Finished. Restart your shell or reload config file.'
-  [[ "$shells" =~ bash ]] && echo '   source ~/.bashrc  # bash'
+  if [[ "$shells" =~ bash ]]; then
+    echo -n '   source ~/.bashrc  # bash'
+    [[ "$archi" =~ Darwin ]] && echo -n '  (.bashrc should be loaded from .bash_profile)'
+    echo
+  fi
   [[ "$shells" =~ zsh ]]  && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
   [[ "$shells" =~ fish ]] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
   echo

install.ps1

@@ -0,0 +1,73 @@
+$version="0.23.1"
+
+if ([Environment]::Is64BitProcess) {
+  $binary_arch="amd64"
+} else {
+  $binary_arch="386"
+}
+
+$fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition
+
+function check_binary () {
+  Write-Host "  - Checking fzf executable ... " -NoNewline
+  $output=cmd /c $fzf_base\bin\fzf.exe --version 2>&1
+  if (-not $?) {
+    Write-Host "Error: $output"
+    $binary_error="Invalid binary"
+  } else {
+    $output=(-Split $output)[0]
+    if ($version -ne $output) {
+      Write-Host "$output != $version"
+      $binary_error="Invalid version"
+    } else {
+      Write-Host "$output"
+      $binary_error=""
+      return 1
+    }
+  }
+  Remove-Item "$fzf_base\bin\fzf.exe"
+  return 0
+}
+
+function download {
+  param($file)
+  Write-Host "Downloading bin/fzf ..."
+  if ("$version" -ne "alpha") {
+    if (Test-Path "$fzf_base\bin\fzf.exe") {
+      Write-Host "  - Already exists"
+      if (check_binary) {
+        return
+      }
+    }
+  }
+  if (-not (Test-Path "$fzf_base\bin")) {
+    md "$fzf_base\bin"
+  }
+  if (-not $?) {
+    $binary_error="Failed to create bin directory"
+    return
+  }
+  cd "$fzf_base\bin"
+  if ("$version" -eq "alpha") {
+    $url="https://github.com/junegunn/fzf-bin/releases/download/alpha/$file"
+  } else {
+    $url="https://github.com/junegunn/fzf-bin/releases/download/$version/$file"
+  }
+  $temp=$env:TMP + "\fzf.zip"
+  [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+  (New-Object Net.WebClient).DownloadFile($url, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("$temp"))
+  if ($?) {
+    (Microsoft.PowerShell.Archive\Expand-Archive -Path $temp -DestinationPath .); (Remove-Item $temp)
+  } else {
+    $binary_error="Failed to download with powershell"
+  }
+  if (-not (Test-Path fzf.exe)) {
+    $binary_error="Failed to download $file"
+    return
+  }
+  check_binary >$null
+}
+
+download "fzf-$version-windows_$binary_arch.zip"
+
+Write-Host 'For more information, see: https://github.com/junegunn/fzf'

main.go

@@ -1,9 +1,13 @@
 package main
 
-import "github.com/junegunn/fzf/src"
+import (
+	"github.com/junegunn/fzf/src"
+	"github.com/junegunn/fzf/src/protector"
+)
 
 var revision string
 
 func main() {
+	protector.Protect()
 	fzf.Run(fzf.ParseOptions(), revision)
 }

man/man1/fzf-tmux.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2019 Junegunn Choi
+Copyright (c) 2013-2020 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
@@ -21,25 +21,39 @@ 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 "Dec 2019" "fzf 0.20.0" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Oct 2020" "fzf 0.23.1" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane
 
 .SH SYNOPSIS
-.B fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+.B fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
 .SH DESCRIPTION
-fzf-tmux is a wrapper script for fzf that opens fzf in a tmux split pane. It is
-designed to work just like fzf except that it does not take up the whole
-screen. You can safely use fzf-tmux instead of fzf in your scripts as the extra
-options will be silently ignored if you're not on tmux.
+fzf-tmux is a wrapper script for fzf that opens fzf in a tmux split pane or in
+a tmux popup window. It is designed to work just like fzf except that it does
+not take up the whole screen. You can safely use fzf-tmux instead of fzf in
+your scripts as the extra options will be silently ignored if you're not on
+tmux.
 
-.SH OPTIONS
-.SS Layout
+.SH LAYOUT OPTIONS
 
-(default: \fB-d 50%\fR)
+(default layout: \fB-d 50%\fR)
 
+.SS Popup window
+(requires tmux 3.2 or above)
+.TP
+.B "-p [WIDTH[%][,HEIGHT[%]]]"
+.TP
+.B "-w WIDTH[%]"
+.TP
+.B "-h WIDTH[%]"
+.TP
+.B "-x COL"
+.TP
+.B "-y ROW"
+
+.SS Split pane
 .TP
 .B "-u [height[%]]"
 Split above (up)

man/man1/fzf.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2019 Junegunn Choi
+Copyright (c) 2013-2020 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 "Dec 2019" "fzf 0.20.0" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Oct 2020" "fzf 0.23.1" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -130,6 +130,10 @@ the details.
 .B "--cycle"
 Enable cyclic scroll
 .TP
+.B "--keep-right"
+Keep the right end of the line visible when it's too long. Effective only when
+the query string is empty.
+.TP
 .B "--no-hscroll"
 Disable horizontal scroll
 .TP
@@ -178,8 +182,16 @@ Choose the layout (default: default)
 A synonym for \fB--layout=reverse\fB
 
 .TP
-.B "--border"
-Draw border above and below the finder
+.BI "--border" [=STYLE]
+Draw border around the finder
+
+.br
+.BR rounded "     Border with rounded corners (default)"
+.br
+.BR sharp "       Border with sharp corners"
+.br
+.BR horizontal "  Horizontal lines above and below the finder"
+.br
 
 .TP
 .B "--no-unicode"
@@ -231,6 +243,12 @@ A synonym for \fB--info=hidden\fB
 .BI "--prompt=" "STR"
 Input prompt (default: '> ')
 .TP
+.BI "--pointer=" "STR"
+Pointer to the current line (default: '>')
+.TP
+.BI "--marker=" "STR"
+Multi-select marker (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--layout\fR option, and
@@ -274,8 +292,8 @@ format.
     \fBbg+        \fRBackground (current line)
     \fBgutter     \fRGutter on the left (defaults to \fBbg+\fR)
     \fBhl+        \fRHighlighted substrings (current line)
-    \fBinfo       \fRInfo
-    \fBborder     \fRBorder of the preview window and horizontal separators (\fB--border\fR)
+    \fBinfo       \fRInfo line (match counters)
+    \fBborder     \fRBorder around the window (\fB--border\fR and \fB--preview\fR)
     \fBprompt     \fRPrompt
     \fBpointer    \fRPointer to the current line
     \fBmarker     \fRMulti-select marker
@@ -363,14 +381,7 @@ 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[%]][:noborder][:wrap][:hidden]"
-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. 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.
+.BI "--preview-window=" "[POSITION][:SIZE[%]][:rounded|sharp|noborder][:[no]wrap][:[no]cycle][:[no]hidden][:+SCROLL[-OFFSET]][:default]"
 
 .RS
 .B POSITION: (default: right)
@@ -380,11 +391,47 @@ execute the command in the background.
     \fBright
 .RE
 
+\fRDetermines 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. Long lines are truncated by default.
+Line wrap can be enabled with \fB:wrap\fR flag. Cyclic scrolling is enabled
+with \fB:cycle\fR flag.
+
+If size is given as 0, preview window will not be visible, but fzf will still
+execute the command in the background.
+
+To change the style of the border of the preview window, specify one of
+\fBrounded\fR (border with rounded edges, default), \fBsharp\fR (border with
+sharp edges), or \fBnoborder\fR (no border).
+
+\fB+SCROLL[-OFFSET]\fR determines the initial scroll offset of the preview
+window. \fBSCROLL\fR can be either a numeric integer or a single-field index
+expression that refers to a numeric integer. The optional \fB-OFFSET\fR part is
+for adjusting the base offset so that you can see the text above it. It should
+be given as a numeric integer (\fB-INTEGER\fR), or as a denominator form
+(\fB-/INTEGER\fR) for specifying a fraction of the preview window height.
+
+\fBdefault\fR resets all options previously set to the default.
+
 .RS
 e.g.
-     \fBfzf --preview="head {}" --preview-window=up:30%
-     fzf --preview="file {}" --preview-window=down:1\fR
+     \fB# Non-default scroll window positions and sizes
+     fzf --preview="head {}" --preview-window=up:30%
+     fzf --preview="file {}" --preview-window=down:1
+
+     # Initial scroll offset is set to the line number of each line of
+     # git grep output *minus* 5 lines (-5)
+     git grep --line-number '' |
+       fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5
+
+     # Preview with bat, matching line in the middle of the window (-/2)
+     git grep --line-number '' |
+       fzf --delimiter : \\
+           --preview 'bat --style=numbers --color=always --highlight-line {2} {1}' \\
+           --preview-window +{2}-/2\fR
+
 .RE
+
 .SS Scripting
 .TP
 .BI "-q, --query=" "STR"
@@ -594,6 +641,8 @@ e.g.
 .br
 \fIend\fR
 .br
+\fIinsert\fR
+.br
 \fIpgup\fR        (\fIpage-up\fR)
 .br
 \fIpgdn\fR        (\fIpage-down\fR)
@@ -615,72 +664,87 @@ e.g.
 or any single character
 
 .SS AVAILABLE EVENTS:
-\fIchange\fR (triggered whenever the query string is changed)
-.br
+\fIchange\fR
+.RS
+Triggered whenever the query string is changed
 
-    e.g.
-         \fB# Moves cursor to the top (or bottom depending on --layout) whenever the query is changed
-         fzf --bind change:top\fR
+e.g.
+     \fB# Moves cursor to the top (or bottom depending on --layout) whenever the query is changed
+     fzf --bind change:top\fR
+.RE
+
+\fIbackward-eof\fR
+.RS
+Triggered when the query string is already empty and you try to delete it
+backward.
+
+e.g.
+     \fBfzf --bind backward-eof:abort\fR
+.RE
 
 .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                (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          (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-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
+  \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-delete-char/eof\fR  (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
+    \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                    (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 (same as \fBdelete-char\fR except aborts fzf if query is empty)
+    \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-silent(...)\fR       (see below for the details)
+    \fBforward-char\fR              \fIctrl-f  right\fR
+    \fBforward-word\fR              \fIalt-f   shift-right\fR
     \fBignore\fR
-    \fBjump\fR                  (EasyMotion-like 2-keystroke movement)
-    \fBjump-accept\fR           (jump and accept)
+    \fBjump\fR                      (EasyMotion-like 2-keystroke movement)
+    \fBjump-accept\fR               (jump and accept)
     \fBkill-line\fR
-    \fBkill-word\fR             \fIalt-d\fR
-    \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
-    \fBpage-down\fR             \fIpgdn\fR
-    \fBpage-up\fR               \fIpgup\fR
+    \fBkill-word\fR                 \fIalt-d\fR
+    \fBnext-history\fR              (\fIctrl-n\fR on \fB--history\fR)
+    \fBpage-down\fR                 \fIpgdn\fR
+    \fBpage-up\fR                   \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
-    \fBpreview-down\fR          \fIshift-down\fR
-    \fBpreview-up\fR            \fIshift-up\fR
+    \fBpreview(...)\fR              (see below for the details)
+    \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)
-    \fBreload(...)\fR           (see below for the details)
-    \fBreplace-query\fR         (replace query string with the current selection)
-    \fBselect-all\fR            (select all matches)
-    \fBtoggle\fR                (\fIright-click\fR)
-    \fBtoggle-all\fR            (toggle all matches)
-    \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)
+    \fBpreview-half-page-down\fR
+    \fBpreview-half-page-up\fR
+    \fBprevious-history\fR          (\fIctrl-p\fR on \fB--history\fR)
+    \fBprint-query\fR               (print query and exit)
+    \fBrefresh-preview\fR
+    \fBreload(...)\fR               (see below for the details)
+    \fBreplace-query\fR             (replace query string with the current selection)
+    \fBselect-all\fR                (select all matches)
+    \fBtoggle\fR                    (\fIright-click\fR)
+    \fBtoggle-all\fR                (toggle all matches)
+    \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-preview-wrap\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
+    \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
 
@@ -750,6 +814,24 @@ e.g.
        fzf --bind "change:reload:$RG_PREFIX {q} || true" \\
            --ansi --phony --query "$INITIAL_QUERY"\fR
 
+.SS PREVIEW BINDING
+
+With \fBpreview(...)\fR action, you can specify multiple different preview
+commands in addition to the default preview command given by \fB--preview\fR
+option.
+
+e.g.
+
+     # Default preview command with an extra preview binding
+     fzf --preview 'file {}' --bind '?:preview:cat {}'
+
+     # A preview binding with no default preview command
+     # (Preview window is initially empty)
+     fzf --bind '?:preview:cat {}'
+
+     # Preview window hidden by default, it appears when you first hit '?'
+     fzf --bind '?:preview:cat {}' --preview-window hidden
+
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 

plugin/fzf.vim

@@ -49,8 +49,13 @@ if s:is_win
 
   " 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)
+    if !has('iconv')
+      return a:str
+    endif
+    if !exists('s:codepage')
+      let s:codepage = libcallnr('kernel32.dll', 'GetACP', 0)
+    endif
     return iconv(a:str, &encoding, 'cp'.s:codepage)
   endfunction
   function! s:wrap_cmds(cmds)
@@ -110,45 +115,65 @@ 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:layout_keys = ['window', 'tmux', 'up', 'down', 'left', 'right']
 let s:fzf_go = s:base_dir.'/bin/fzf'
 let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
-let s:install = s:base_dir.'/install'
-let s:installed = 0
 
 let s:cpo_save = &cpo
 set cpo&vim
 
-function! s:fzf_exec()
+function! s:popup_support()
+  return has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191')
+endfunction
+
+function! s:default_layout()
+  return s:popup_support()
+        \ ? { 'window' : { 'width': 0.9, 'height': 0.6, 'highlight': 'Normal' } }
+        \ : { 'down': '~40%' }
+endfunction
+
+function! fzf#install()
+  if s:is_win && !has('win32unix')
+    let script = s:base_dir.'/install.ps1'
+    if !filereadable(script)
+      throw script.' not found'
+    endif
+    let script = 'powershell -ExecutionPolicy Bypass -file ' . script
+  else
+    let script = s:base_dir.'/install'
+    if !executable(script)
+      throw script.' not found'
+    endif
+    let script .= ' --bin'
+  endif
+
+  call s:warn('Running fzf installer ...')
+  call system(script)
+  if v:shell_error
+    throw 'Failed to download fzf: '.script
+  endif
+endfunction
+
+function! fzf#exec()
   if !exists('s:exec')
     if executable(s:fzf_go)
       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'
+    elseif input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
-      echo
-      call s:warn('Downloading fzf binary. Please wait ...')
-      let s:installed = 1
-      call system(s:install.' --bin')
-      return s:fzf_exec()
+      call fzf#install()
+      return fzf#exec()
     else
       redraw
       throw 'fzf executable not found'
     endif
   endif
-  return fzf#shellescape(s:exec)
+  return s:exec
 endfunction
 
 function! s:tmux_enabled()
-  if has('gui_running')
+  if has('gui_running') || !exists('$TMUX')
     return 0
   endif
 
@@ -157,10 +182,16 @@ function! s:tmux_enabled()
   endif
 
   let s:tmux = 0
-  if exists('$TMUX') && executable(s:fzf_tmux)
-    let output = system('tmux -V')
-    let s:tmux = !v:shell_error && output >= 'tmux 1.7'
+  if !executable(s:fzf_tmux)
+    if executable('fzf-tmux')
+      let s:fzf_tmux = 'fzf-tmux'
+    else
+      return 0
+    endif
   endif
+
+  let output = system('tmux -V')
+  let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   return s:tmux
 endfunction
 
@@ -169,21 +200,6 @@ function! s:escape(path)
   return s:is_win ? escape(path, '$') : path
 endfunction
 
-" Upgrade legacy options
-function! s:upgrade(dict)
-  let copy = copy(a:dict)
-  if has_key(copy, 'tmux')
-    let copy.down = remove(copy, 'tmux')
-  endif
-  if has_key(copy, 'tmux_height')
-    let copy.down = remove(copy, 'tmux_height')
-  endif
-  if has_key(copy, 'tmux_width')
-    let copy.right = remove(copy, 'tmux_width')
-  endif
-  return copy
-endfunction
-
 function! s:error(msg)
   echohl ErrorMsg
   echom a:msg
@@ -229,9 +245,13 @@ function! s:common_sink(action, lines) abort
   endif
   try
     let empty = empty(s:fzf_expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
-    let autochdir = &autochdir
-    set noautochdir
+    " Preserve the current working directory in case it's changed during
+    " the execution (e.g. `set autochdir` or `autocmd BufEnter * lcd ...`)
+    let cwd = exists('w:fzf_pushd') ? w:fzf_pushd.dir : expand('%:p:h')
     for item in a:lines
+      if item[0] != '~' && item !~ (s:is_win ? '^[A-Z]:\' : '^/')
+        let item = join([cwd, item], (s:is_win ? '\' : '/'))
+      endif
       if empty
         execute 'e' s:escape(item)
         let empty = 0
@@ -245,7 +265,6 @@ function! s:common_sink(action, lines) abort
     endfor
   catch /^Vim:Interrupt$/
   finally
-    let &autochdir = autochdir
     silent! autocmd! fzf_swap
   endtry
 endfunction
@@ -290,7 +309,7 @@ function! fzf#wrap(...)
   let expects = map(copy(args), 'type(v:val)')
   let tidx = 0
   for arg in copy(a:000)
-    let tidx = index(expects, type(arg), tidx)
+    let tidx = index(expects, type(arg) == 6 ? type(0) : type(arg), tidx)
     if tidx < 0
       throw 'Invalid arguments (expected: [name string] [opts dict] [fullscreen boolean])'
     endif
@@ -315,7 +334,7 @@ function! fzf#wrap(...)
     if !exists('g:fzf_layout') && exists('g:fzf_height')
       let opts.down = g:fzf_height
     else
-      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout)))
+      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout())))
     endif
   endif
 
@@ -362,11 +381,11 @@ function! fzf#run(...) abort
 try
   let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()
 
-  let dict   = exists('a:1') ? s:upgrade(a:1) : {}
+  let dict   = exists('a:1') ? copy(a:1) : {}
   let temps  = { 'result': s:fzf_tempname() }
   let optstr = s:evaluate_opts(get(dict, 'options', ''))
   try
-    let fzf_exec = s:fzf_exec()
+    let fzf_exec = fzf#shellescape(fzf#exec())
   catch
     throw v:exception
   endtry
@@ -378,12 +397,6 @@ try
     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)
@@ -400,7 +413,7 @@ try
     let prefix = ''
   endif
 
-  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0)
+  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0) || has_key(dict, 'tmux')
   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')
@@ -408,7 +421,7 @@ try
   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)
+  let use_tmux = (has_key(dict, 'tmux') || (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:splittable(dict)) && s:tmux_enabled()
   if prefer_tmux && use_tmux
     let use_height = 0
     let use_term = 0
@@ -444,19 +457,21 @@ function! s:present(dict, ...)
 endfunction
 
 function! s:fzf_tmux(dict)
-  let size = ''
-  for o in ['up', 'down', 'left', 'right']
-    if s:present(a:dict, o)
-      let spec = a:dict[o]
-      if (o == 'up' || o == 'down') && spec[0] == '~'
-        let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
-      else
-        " Legacy boolean option
-        let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+  let size = get(a:dict, 'tmux', '')
+  if empty(size)
+    for o in ['up', 'down', 'left', 'right']
+      if s:present(a:dict, o)
+        let spec = a:dict[o]
+        if (o == 'up' || o == 'down') && spec[0] == '~'
+          let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
+        else
+          " Legacy boolean option
+          let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+        endif
+        break
       endif
-      break
-    endif
-  endfor
+    endfor
+  endif
   return printf('LINES=%d COLUMNS=%d %s %s %s --',
     \ &lines, &columns, fzf#shellescape(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
 endfunction
@@ -511,7 +526,7 @@ function! s:dopopd()
   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
+  unlet! w:fzf_pushd
 endfunction
 
 function! s:xterm_launcher()
@@ -626,14 +641,19 @@ function! s:calc_size(max, val, dict)
   endif
 
   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
+  if opts =~ 'preview'
+    return size
+  endif
+  let margin = match(opts, '--inline-info\|--info[^-]\{-}inline') > match(opts, '--no-inline-info\|--info[^-]\{-}\(default\|hidden\)') ? 1 : 2
   let margin += stridx(opts, '--border') > stridx(opts, '--no-border') ? 2 : 0
-  let margin += stridx(opts, '--header') > stridx(opts, '--no-header')
+  if stridx(opts, '--header') > stridx(opts, '--no-header')
+    let margin += len(split(opts, "\n"))
+  endif
   return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
 
 function! s:getpos()
-  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
+  return {'tab': tabpagenr(), 'win': winnr(), 'winid': win_getid(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
 endfunction
 
 function! s:split(dict)
@@ -643,9 +663,18 @@ function! s:split(dict)
   \ 'left':  ['vertical topleft', 'vertical resize', &columns],
   \ 'right': ['vertical botright', 'vertical resize', &columns] }
   let ppos = s:getpos()
+  let is_popup = 0
   try
     if s:present(a:dict, 'window')
-      execute 'keepalt' a:dict.window
+      if type(a:dict.window) == type({})
+        if !s:popup_support()
+          throw 'Nvim 0.4+ or Vim 8.2.191+ with popupwin feature is required for pop-up window'
+        end
+        call s:popup(a:dict.window)
+        let is_popup = 1
+      else
+        execute 'keepalt' a:dict.window
+      endif
     elseif !s:splittable(a:dict)
       execute (tabpagenr()-1).'tabnew'
     else
@@ -660,20 +689,22 @@ function! s:split(dict)
           endif
           execute cmd sz.'new'
           execute resz sz
-          return [ppos, {}]
+          return [ppos, {}, is_popup]
         endif
       endfor
     endif
-    return [ppos, { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }]
+    return [ppos, is_popup ? {} : { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }, is_popup]
   finally
-    setlocal winfixwidth winfixheight
+    if !is_popup
+      setlocal winfixwidth winfixheight
+    endif
   endtry
 endfunction
 
 function! s:execute_term(dict, command, temps) abort
   let winrest = winrestcmd()
   let pbuf = bufnr('')
-  let [ppos, winopts] = s:split(a:dict)
+  let [ppos, winopts, is_popup] = s:split(a:dict)
   call s:use_sh()
   let b:fzf = a:dict
   let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
@@ -702,8 +733,8 @@ function! s:execute_term(dict, command, temps) abort
         " there's no other listed buffer (nvim +'set nobuflisted')
         close
       endif
-      execute 'tabnext' self.ppos.tab
-      execute self.ppos.win.'wincmd w'
+      silent! execute 'tabnext' self.ppos.tab
+      silent! execute self.ppos.win.'wincmd w'
     endif
 
     if bufexists(self.buf)
@@ -737,8 +768,17 @@ function! s:execute_term(dict, command, temps) abort
     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
+      let term_opts = {'exit_cb': function(fzf.on_exit)}
+      if is_popup
+        let term_opts.hidden = 1
+      else
+        let term_opts.curwin = 1
+      endif
+      let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
+      if is_popup && exists('#TerminalWinOpen')
+        doautocmd <nomodeline> TerminalWinOpen
+      endif
+      if !has('patch-8.0.1261') && !s:is_win
         call term_wait(fzf.buf, 20)
       endif
     endif
@@ -793,6 +833,99 @@ function! s:callback(dict, lines) abort
   endif
 endfunction
 
+if has('nvim')
+  function s:create_popup(hl, opts) abort
+    let buf = nvim_create_buf(v:false, v:true)
+    let opts = extend({'relative': 'editor', 'style': 'minimal'}, a:opts)
+    let border = has_key(opts, 'border') ? remove(opts, 'border') : []
+    let win = nvim_open_win(buf, v:true, opts)
+    call setwinvar(win, '&winhighlight', 'NormalFloat:'..a:hl)
+    call setwinvar(win, '&colorcolumn', '')
+    if !empty(border)
+      call nvim_buf_set_lines(buf, 0, -1, v:true, border)
+    endif
+    return buf
+  endfunction
+else
+  function! s:create_popup(hl, opts) abort
+    let is_frame = has_key(a:opts, 'border')
+    let s:popup_create = {buf -> popup_create(buf, #{
+      \ line: a:opts.row,
+      \ col: a:opts.col,
+      \ minwidth: a:opts.width,
+      \ minheight: a:opts.height,
+      \ zindex: 50 - is_frame,
+    \ })}
+    if is_frame
+      let id = s:popup_create('')
+      call setwinvar(id, '&wincolor', a:hl)
+      call setbufline(winbufnr(id), 1, a:opts.border)
+      execute 'autocmd BufWipeout * ++once call popup_close('..id..')'
+      return winbufnr(id)
+    else
+      autocmd TerminalOpen * ++once call s:popup_create(str2nr(expand('<abuf>')))
+    endif
+  endfunction
+endif
+
+function! s:popup(opts) abort
+  " Support ambiwidth == 'double'
+  let ambidouble = &ambiwidth == 'double' ? 2 : 1
+
+  " Size and position
+  let width = min([max([8, a:opts.width > 1 ? a:opts.width : float2nr(&columns * a:opts.width)]), &columns])
+  let width += width % ambidouble
+  let height = min([max([4, a:opts.height > 1 ? a:opts.height : float2nr(&lines * a:opts.height)]), &lines - has('nvim')])
+  let row = float2nr(get(a:opts, 'yoffset', 0.5) * (&lines - height))
+  let col = float2nr(get(a:opts, 'xoffset', 0.5) * (&columns - width))
+
+  " Managing the differences
+  let row = min([max([0, row]), &lines - has('nvim') - height])
+  let col = min([max([0, col]), &columns - width])
+  let row += !has('nvim')
+  let col += !has('nvim')
+
+  " Border style
+  let style = tolower(get(a:opts, 'border', 'rounded'))
+  if !has_key(a:opts, 'border') && !get(a:opts, 'rounded', 1)
+    let style = 'sharp'
+  endif
+
+  if style =~ 'vertical\|left\|right'
+    let mid = style == 'vertical' ? '│' .. repeat(' ', width - 2 * ambidouble) .. '│' :
+            \ style == 'left'     ? '│' .. repeat(' ', width - 1 * ambidouble)
+            \                     :        repeat(' ', width - 1 * ambidouble) .. '│'
+    let border = repeat([mid], height)
+    let shift = { 'row': 0, 'col': style == 'right' ? 0 : 2, 'width': style == 'vertical' ? -4 : -2, 'height': 0 }
+  elseif style =~ 'horizontal\|top\|bottom'
+    let hor = repeat('─', width / ambidouble)
+    let mid = repeat(' ', width)
+    let border = style == 'horizontal' ? [hor] + repeat([mid], height - 2) + [hor] :
+               \ style == 'top'        ? [hor] + repeat([mid], height - 1)
+               \                       :         repeat([mid], height - 1) + [hor]
+    let shift = { 'row': style == 'bottom' ? 0 : 1, 'col': 0, 'width': 0, 'height': style == 'horizontal' ? -2 : -1 }
+  else
+    let edges = style == 'sharp' ? ['┌', '┐', '└', '┘'] : ['╭', '╮', '╰', '╯']
+    let bar = repeat('─', width / ambidouble - 2)
+    let top = edges[0] .. bar .. edges[1]
+    let mid = '│' .. repeat(' ', width - 2 * ambidouble) .. '│'
+    let bot = edges[2] .. bar .. edges[3]
+    let border = [top] + repeat([mid], height - 2) + [bot]
+    let shift = { 'row': 1, 'col': 2, 'width': -4, 'height': -2 }
+  endif
+
+  let highlight = get(a:opts, 'highlight', 'Comment')
+  let frame = s:create_popup(highlight, {
+    \ 'row': row, 'col': col, 'width': width, 'height': height, 'border': border
+  \ })
+  call s:create_popup('Normal', {
+    \ 'row': row + shift.row, 'col': col + shift.col, 'width': width + shift.width, 'height': height + shift.height
+  \ })
+  if has('nvim')
+    execute 'autocmd BufWipeout <buffer> bwipeout '..frame
+  endif
+endfunction
+
 let s:default_action = {
   \ 'ctrl-t': 'tab split',
   \ 'ctrl-x': 'split',

shell/completion.bash

@@ -2,10 +2,10 @@
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
-# /_/   /___/_/-completion.bash
+# /_/   /___/_/ completion.bash
 #
 # - $FZF_TMUX               (default: 0)
-# - $FZF_TMUX_HEIGHT        (default: '40%')
+# - $FZF_TMUX_OPTS          (default: empty)
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
@@ -34,9 +34,16 @@ fi
 # To redraw line after fzf closes (printf '\e[5n')
 bind '"\e[0n": redraw-current-line'
 
-__fzfcmd_complete() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+__fzf_comprun() {
+  if [ "$(type -t _fzf_comprun 2>&1)" = function ]; then
+    _fzf_comprun "$@"
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+    shift
+    fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- "$@"
+  else
+    shift
+    fzf "$@"
+  fi
 }
 
 __fzf_orig_completion_filter() {
@@ -72,6 +79,8 @@ _fzf_opts_completion() {
     --margin
     --inline-info
     --prompt
+    --pointer
+    --marker
     --header
     --header-lines
     --ansi
@@ -140,8 +149,7 @@ _fzf_handle_dynamic_completion() {
 }
 
 __fzf_generic_path_completion() {
-  local cur base dir leftover matches trigger cmd fzf
-  fzf="$(__fzfcmd_complete)"
+  local cur base dir leftover matches trigger cmd
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   COMPREPLY=()
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -157,7 +165,7 @@ __fzf_generic_path_completion() {
         leftover=${leftover/#\/}
         [ -z "$dir" ] && dir='.'
         [ "$dir" != "/" ] && dir="${dir/%\//}"
-        matches=$(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_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $2" __fzf_comprun "$4" -q "$leftover" | while read -r item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
@@ -182,10 +190,30 @@ __fzf_generic_path_completion() {
 }
 
 _fzf_complete() {
-  local cur selected trigger cmd fzf post
+  # Split arguments around --
+  local args rest str_arg i sep
+  args=("$@")
+  sep=
+  for i in "${!args[@]}"; do
+    if [[ "${args[$i]}" = -- ]]; then
+      sep=$i
+      break
+    fi
+  done
+  if [[ -n "$sep" ]]; then
+    str_arg=
+    rest=("${args[@]:$((sep + 1)):${#args[@]}}")
+    args=("${args[@]:0:$sep}")
+  else
+    str_arg=$1
+    args=()
+    shift
+    rest=("$@")
+  fi
+
+  local cur selected trigger cmd post
   post="$(caller 0 | awk '{print $2}')_post"
   type -t "$post" > /dev/null 2>&1 || post=cat
-  fzf="$(__fzfcmd_complete)"
 
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -193,7 +221,7 @@ _fzf_complete() {
   if [[ "$cur" == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
-    selected=$(cat | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" $fzf $1 -q "$cur" | $post | tr '\n' ' ')
+    selected=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $str_arg" __fzf_comprun "${rest[0]}" "${args[@]}" -q "$cur" | $post | tr '\n' ' ')
     selected=${selected% } # Strip trailing space not to repeat "-o nospace"
     if [ -n "$selected" ]; then
       COMPREPLY=("$selected")
@@ -203,8 +231,7 @@ _fzf_complete() {
     printf '\e[5n'
     return 0
   else
-    shift
-    _fzf_handle_dynamic_completion "$cmd" "$@"
+    _fzf_handle_dynamic_completion "$cmd" "${rest[@]}"
   fi
 }
 
@@ -222,49 +249,44 @@ _fzf_dir_completion() {
 }
 
 _fzf_complete_kill() {
-  [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
-
-  local selected fzf
-  fzf="$(__fzfcmd_complete)"
-  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 $2}' | tr '\n' ' ')
-  printf '\e[5n'
-
-  if [ -n "$selected" ]; then
-    COMPREPLY=( "$selected" )
-    return 0
+  local trigger=${FZF_COMPLETION_TRIGGER-'**'}
+  local cur="${COMP_WORDS[COMP_CWORD]}"
+  if [[ -z "$cur" ]]; then
+    COMP_WORDS[$COMP_CWORD]=$trigger
+  elif [[ "$cur" != *"$trigger" ]]; then
+    return 1
   fi
+
+  _fzf_proc_completion "$@"
 }
 
-_fzf_complete_telnet() {
-  _fzf_complete '+m' "$@" < <(
-    command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
-        awk '{if (length($2) > 0) {print $2}}' | sort -u
+_fzf_proc_completion() {
+  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+    command ps -ef | sed 1d
   )
 }
 
-_fzf_complete_ssh() {
-  _fzf_complete '+m' "$@" < <(
-    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 '[*?]') \
+_fzf_proc_completion_post() {
+  awk '{print $2}'
+}
+
+_fzf_host_completion() {
+  _fzf_complete +m -- "$@" < <(
+    command cat <(command tail -n +1 ~/.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
   )
 }
 
-_fzf_complete_unset() {
-  _fzf_complete '-m' "$@" < <(
+_fzf_var_completion() {
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
-_fzf_complete_export() {
-  _fzf_complete '-m' "$@" < <(
-    declare -xp | sed 's/=.*//' | sed 's/.* //'
-  )
-}
-
-_fzf_complete_unalias() {
-  _fzf_complete '-m' "$@" < <(
+_fzf_alias_completion() {
+  _fzf_complete -m -- "$@" < <(
     alias | sed 's/=.*//' | sed 's/.* //'
   )
 }
@@ -282,11 +304,10 @@ a_cmds="
   find git grep gunzip gzip hg jar
   ln ls mv open rm rsync scp
   svn tar unzip zip"
-x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
 eval "$(complete |
-  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
+  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
   __fzf_orig_completion_filter)"
 
 if type _completion_loader > /dev/null 2>&1; then
@@ -318,36 +339,34 @@ for cmd in $d_cmds; do
   __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
-# Kill completion
-complete -F _fzf_complete_kill -o nospace -o default -o bashdefault kill
+# Kill completion (supports empty completion trigger)
+complete -F _fzf_complete_kill -o default -o bashdefault kill
 
-# Host completion
-complete -F _fzf_complete_ssh -o default -o bashdefault ssh
-complete -F _fzf_complete_telnet -o default -o bashdefault telnet
-
-# Environment variables / Aliases
-complete -F _fzf_complete_unset -o default -o bashdefault unset
-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
+unset cmd d_cmds a_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..."
+    echo "usage: ${FUNCNAME[0]} path|dir|var|alias|host|proc COMMANDS..."
     return 1
   fi
   shift
+  eval "$(complete -p "$@" 2> /dev/null | grep -v "$fn" | __fzf_orig_completion_filter)"
   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" "$fn" "-o default -o bashdefault" ;;
+      dir)   __fzf_defc "$cmd" "$fn" "-o nospace -o dirnames" ;;
+      var)   __fzf_defc "$cmd" "$fn" "-o default -o nospace -v" ;;
+      alias) __fzf_defc "$cmd" "$fn" "-a" ;;
+      *)     __fzf_defc "$cmd" "$fn" "-o default -o bashdefault" ;;
     esac
   done
 }
 
+# Environment variables / Aliases / Hosts
+_fzf_setup_completion 'var'   export unset
+_fzf_setup_completion 'alias' unalias
+_fzf_setup_completion 'host'  ssh telnet
+
 fi

shell/completion.zsh

@@ -2,14 +2,79 @@
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
-# /_/   /___/_/-completion.zsh
+# /_/   /___/_/ completion.zsh
 #
 # - $FZF_TMUX               (default: 0)
-# - $FZF_TMUX_HEIGHT        (default: '40%')
+# - $FZF_TMUX_OPTS          (default: '-d 40%')
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
-if [[ $- =~ i ]]; then
+# Both branches of the following `if` do the same thing -- define
+# __fzf_completion_options such that `eval $__fzf_completion_options` sets
+# all options to the same values they currently have. We'll do just that at
+# the bottom of the file after changing options to what we prefer.
+#
+# IMPORTANT: Until we get to the `emulate` line, all words that *can* be quoted
+# *must* be quoted in order to prevent alias expansion. In addition, code must
+# be written in a way works with any set of zsh options. This is very tricky, so
+# careful when you change it.
+#
+# Start by loading the builtin zsh/parameter module. It provides `options`
+# associative array that stores current shell options.
+if 'zmodload' 'zsh/parameter' 2>'/dev/null' && (( ${+options} )); then
+  # This is the fast branch and it gets taken on virtually all Zsh installations.
+  #
+  # ${(kv)options[@]} expands to array of keys (option names) and values ("on"
+  # or "off"). The subsequent expansion# with (j: :) flag joins all elements
+  # together separated by spaces. __fzf_completion_options ends up with a value
+  # like this: "options=(shwordsplit off aliases on ...)".
+  __fzf_completion_options="options=(${(j: :)${(kv)options[@]}})"
+else
+  # This branch is much slower because it forks to get the names of all
+  # zsh options. It's possible to eliminate this fork but it's not worth the
+  # trouble because this branch gets taken only on very ancient or broken
+  # zsh installations.
+  () {
+    # That `()` above defines an anonymous function. This is essentially a scope
+    # for local parameters. We use it to avoid polluting global scope.
+    'local' '__fzf_opt'
+    __fzf_completion_options="setopt"
+    # `set -o` prints one line for every zsh option. Each line contains option
+    # name, some spaces, and then either "on" or "off". We just want option names.
+    # Expansion with (@f) flag splits a string into lines. The outer expansion
+    # removes spaces and everything that follow them on every line. __fzf_opt
+    # ends up iterating over option names: shwordsplit, aliases, etc.
+    for __fzf_opt in "${(@)${(@f)$(set -o)}%% *}"; do
+      if [[ -o "$__fzf_opt" ]]; then
+        # Option $__fzf_opt is currently on, so remember to set it back on.
+        __fzf_completion_options+=" -o $__fzf_opt"
+      else
+        # Option $__fzf_opt is currently off, so remember to set it back off.
+        __fzf_completion_options+=" +o $__fzf_opt"
+      fi
+    done
+    # The value of __fzf_completion_options here looks like this:
+    # "setopt +o shwordsplit -o aliases ..."
+  }
+fi
+
+# Enable the default zsh options (those marked with <Z> in `man zshoptions`)
+# but without `aliases`. Aliases in functions are expanded when functions are
+# defined, so if we disable aliases here, we'll be sure to have no pesky
+# aliases in any of our functions. This way we won't need prefix every
+# command with `command` or to quote every word to defend against global
+# aliases. Note that `aliases` is not the only option that's important to
+# control. There are several others that could wreck havoc if they are set
+# to values we don't expect. With the following `emulate` command we
+# sidestep this issue entirely.
+'emulate' 'zsh' '-o' 'no_aliases'
+
+# This brace is the start of try-always block. The `always` part is like
+# `finally` in lesser languages. We use it to *always* restore user options.
+{
+
+# Bail out if not interactive shell.
+[[ -o interactive ]] || return 0
 
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
@@ -31,20 +96,45 @@ 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_comprun() {
+  if [[ "$(type _fzf_comprun 2>&1)" =~ function ]]; then
+    _fzf_comprun "$@"
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+    shift
+    if [ -n "$FZF_TMUX_OPTS" ]; then
+      fzf-tmux ${(Q)${(Z+n+)FZF_TMUX_OPTS}} -- "$@"
+    else
+      fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%} -- "$@"
+    fi
+  else
+    shift
+    fzf "$@"
+  fi
+}
+
+# Extract the name of the command. e.g. foo=1 bar baz**<tab>
+__fzf_extract_command() {
+  local token tokens
+  tokens=(${(z)1})
+  for token in $tokens; do
+    token=${(Q)token}
+    if [[ "$token" =~ [[:alnum:]] && ! "$token" =~ "=" ]]; then
+      echo "$token"
+      return
+    fi
+  done
+  echo "${tokens[1]}"
 }
 
 __fzf_generic_path_completion() {
-  local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches
+  local base lbuf cmd compgen fzf_opts suffix tail dir leftover matches
   base=$1
   lbuf=$2
+  cmd=$(__fzf_extract_command "$lbuf")
   compgen=$3
   fzf_opts=$4
   suffix=$5
   tail=$6
-  fzf="$(__fzfcmd_complete)"
 
   setopt localoptions nonomatch
   eval "base=$base"
@@ -55,7 +145,7 @@ __fzf_generic_path_completion() {
       leftover=${leftover/#\/}
       [ -z "$dir" ] && dir='.'
       [ "$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_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" __fzf_comprun "$cmd" ${(Q)${(Z+n+)fzf_opts}} -q "$leftover" | while read item; do
         echo -n "${(q)item}$suffix "
       done)
       matches=${matches% }
@@ -87,17 +177,37 @@ _fzf_feed_fifo() (
 )
 
 _fzf_complete() {
-  local fifo fzf_opts lbuf fzf matches post
+  setopt localoptions ksh_arrays
+  # Split arguments around --
+  local args rest str_arg i sep
+  args=("$@")
+  sep=
+  for i in {0..${#args[@]}}; do
+    if [[ "${args[$i]}" = -- ]]; then
+      sep=$i
+      break
+    fi
+  done
+  if [[ -n "$sep" ]]; then
+    str_arg=
+    rest=("${args[@]:$((sep + 1)):${#args[@]}}")
+    args=("${args[@]:0:$sep}")
+  else
+    str_arg=$1
+    args=()
+    shift
+    rest=("$@")
+  fi
+
+  local fifo lbuf cmd matches post
   fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
-  fzf_opts=$1
-  lbuf=$2
-  post="${funcstack[2]}_post"
+  lbuf=${rest[0]}
+  cmd=$(__fzf_extract_command "$lbuf")
+  post="${funcstack[1]}_post"
   type $post > /dev/null 2>&1 || post=cat
 
-  fzf="$(__fzfcmd_complete)"
-
   _fzf_feed_fifo "$fifo"
-  matches=$(cat "$fifo" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
+  matches=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $str_arg" __fzf_comprun "$cmd" "${args[@]}" -q "${(Q)prefix}" < "$fifo" | $post | tr '\n' ' ')
   if [ -n "$matches" ]; then
     LBUFFER="$lbuf$matches"
   fi
@@ -106,16 +216,16 @@ _fzf_complete() {
 }
 
 _fzf_complete_telnet() {
-  _fzf_complete '+m' "$@" < <(
+  _fzf_complete +m -- "$@" < <(
     command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
 _fzf_complete_ssh() {
-  _fzf_complete '+m' "$@" < <(
+  _fzf_complete +m -- "$@" < <(
     setopt localoptions nonomatch
-    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 cat <(command tail -n +1 ~/.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
@@ -123,25 +233,35 @@ _fzf_complete_ssh() {
 }
 
 _fzf_complete_export() {
-  _fzf_complete '-m' "$@" < <(
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
 _fzf_complete_unset() {
-  _fzf_complete '-m' "$@" < <(
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
 _fzf_complete_unalias() {
-  _fzf_complete '+m' "$@" < <(
+  _fzf_complete +m -- "$@" < <(
     alias | sed 's/=.*//'
   )
 }
 
+_fzf_complete_kill() {
+  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+    command ps -ef | sed 1d
+  )
+}
+
+_fzf_complete_kill_post() {
+  awk '{print $2}'
+}
+
 fzf-completion() {
-  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+  local tokens cmd prefix trigger tail matches lbuf d_cmds
   setopt localoptions noshwordsplit noksh_arrays noposixbuiltins
 
   # http://zsh.sourceforge.net/FAQ/zshfaq03.html
@@ -152,7 +272,7 @@ fzf-completion() {
     return
   fi
 
-  cmd=${tokens[1]}
+  cmd=$(__fzf_extract_command "$LBUFFER")
 
   # Explicitly allow for empty trigger.
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -164,24 +284,24 @@ fzf-completion() {
     tokens=(${tokens[0,-2]})
   fi
 
+  lbuf=$LBUFFER
   tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
   # Kill completion (do not require trigger sequence)
-  if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
-    fzf="$(__fzfcmd_complete)"
-    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 reset-prompt
+  if [ "$cmd" = kill -a ${LBUFFER[-1]} = ' ' ]; then
+    tail=$trigger
+    tokens+=$trigger
+    lbuf="$lbuf$trigger"
+  fi
+
   # Trigger sequence given
-  elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
+  if [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
     d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
 
     [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
-    [ -z "${tokens[-1]}" ] && lbuf=$LBUFFER        || lbuf=${LBUFFER:0:-${#tokens[-1]}}
+    [ -n "${tokens[-1]}" ] && lbuf=${lbuf:0:-${#tokens[-1]}}
 
     if eval "type _fzf_complete_${cmd} > /dev/null"; then
-      eval "prefix=\"$prefix\" _fzf_complete_${cmd} \"$lbuf\""
+      prefix="$prefix" eval _fzf_complete_${cmd} ${(q)lbuf}
     elif [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
       _fzf_dir_completion "$prefix" "$lbuf"
     else
@@ -202,4 +322,8 @@ fzf-completion() {
 zle     -N   fzf-completion
 bindkey '^I' fzf-completion
 
-fi
+} always {
+  # Restore the original options.
+  eval $__fzf_completion_options
+  'unset' '__fzf_completion_options'
+}

shell/key-bindings.bash

@@ -1,3 +1,16 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.bash
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
 __fzf_select__() {
@@ -5,7 +18,7 @@ __fzf_select__() {
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | cut -b3-"}"
-  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" fzf -m "$@" | while read -r item; do
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read -r item; do
     printf '%q ' "$item"
   done
   echo
@@ -13,35 +26,15 @@ __fzf_select__() {
 
 if [[ $- =~ i ]]; then
 
-__fzf_use_tmux__() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
-}
-
 __fzfcmd() {
-  __fzf_use_tmux__ &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
-}
-
-__fzf_select_tmux__() {
-  local height
-  height=${FZF_TMUX_HEIGHT:-40%}
-  if [[ $height =~ %$ ]]; then
-    height="-p ${height%\%}"
-  else
-    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__ --no-height)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+    echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
 fzf-file-widget() {
-  if __fzf_use_tmux__; then
-    __fzf_select_tmux__
-  else
-    local selected="$(__fzf_select__)"
-    READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
-    READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
-  fi
+  local selected="$(__fzf_select__)"
+  READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
+  READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
 }
 
 __fzf_cd__() {
@@ -51,71 +44,53 @@ __fzf_cd__() {
   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= builtin history |
-    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"
-    else
-      sed 's/^ *\([0-9]*\)\** *//' <<< "$line"
-    fi
-)
-
-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 [ $BASH_VERSINFO -gt 3 ]; then
-    bind -x '"\C-t": "fzf-file-widget"'
-  elif __fzf_use_tmux__; then
-    bind '"\C-t": " \C-u \C-a\C-k`__fzf_select_tmux__`\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
+__fzf_history__() {
+  local output
+  output=$(
+    builtin fc -lnr -2147483648 |
+      last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e 'BEGIN { getc; $/ = "\n\t"; $HISTCMD = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCMD - $. . "\t$_" if !$seen{$_}++' |
+      FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m --read0" $(__fzfcmd) --query "$READLINE_LINE"
+  ) || return
+  READLINE_LINE=${output#*$'\t'}
+  if [ -z "$READLINE_POINT" ]; then
+    echo "$READLINE_LINE"
   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"'
+    READLINE_POINT=0x7fffffff
   fi
+}
+
+# Required to refresh the prompt after fzf
+bind -m emacs-standard '"\er": redraw-current-line'
+
+bind -m vi-command '"\C-z": emacs-editing-mode'
+bind -m vi-insert '"\C-z": emacs-editing-mode'
+bind -m emacs-standard '"\C-z": vi-editing-mode'
+
+if [ "${BASH_VERSINFO[0]}" -lt 4 ]; then
+  # CTRL-T - Paste the selected file path into the command line
+  bind -m emacs-standard '"\C-t": " \C-b\C-k \C-u`__fzf_select__`\e\C-e\er\C-a\C-y\C-h\C-e\e \C-y\ey\C-x\C-x\C-f"'
+  bind -m vi-command '"\C-t": "\C-z\C-t\C-z"'
+  bind -m vi-insert '"\C-t": "\C-z\C-t\C-z"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  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"'
+  bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u"$(__fzf_history__)"\e\C-e\er"'
+  bind -m vi-command '"\C-r": "\C-z\C-r\C-z"'
+  bind -m vi-insert '"\C-r": "\C-z\C-r\C-z"'
 else
-  # We'd usually use "\e" to enter vi-movement-mode so we can do our magic,
-  # but this incurs a very noticeable delay of a half second or so,
-  # because many other commands start with "\e".
-  # Instead, we bind an unused key, "\C-x\C-a",
-  # to also enter vi-movement-mode,
-  # and then use that thereafter.
-  # (We imagine that "\C-x\C-a" is relatively unlikely to be in use.)
-  bind '"\C-x\C-a": vi-movement-mode'
-
-  bind '"\C-x\C-e": shell-expand-line'
-  bind '"\C-x\C-r": redraw-current-line'
-  bind '"\C-x^": history-expand-line'
-
   # CTRL-T - Paste the selected file path into the command line
-  # - FIXME: Selected items are attached to the end regardless of cursor position
-  if [ $BASH_VERSINFO -gt 3 ]; then
-    bind -x '"\C-t": "fzf-file-widget"'
-  elif __fzf_use_tmux__; then
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select_tmux__`\C-x\C-e\C-x\C-a0P$xa"'
-  else
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select__`\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
-  fi
-  bind -m vi-command '"\C-t": "i\C-t"'
+  bind -m emacs-standard -x '"\C-t": fzf-file-widget'
+  bind -m vi-command -x '"\C-t": fzf-file-widget'
+  bind -m vi-insert -x '"\C-t": fzf-file-widget'
 
   # 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-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 -m vi-command '"\ec": "ddi`__fzf_cd__`\C-x\C-e\C-x\C-r\C-m"'
+  bind -m emacs-standard -x '"\C-r": __fzf_history__'
+  bind -m vi-command -x '"\C-r": __fzf_history__'
+  bind -m vi-insert -x '"\C-r": __fzf_history__'
 fi
 
+# ALT-C - cd into the selected directory
+bind -m emacs-standard '"\ec": " \C-b\C-k \C-u`__fzf_cd__`\e\C-e\er\C-m\C-y\C-h\e \C-y\ey\C-x\C-x\C-d"'
+bind -m vi-command '"\ec": "\C-z\ec\C-z"'
+bind -m vi-insert '"\ec": "\C-z\ec\C-z"'
+
 fi

shell/key-bindings.fish

@@ -1,3 +1,16 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.fish
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
 function fzf_key_bindings
@@ -10,13 +23,13 @@ function fzf_key_bindings
 
     # "-path \$dir'*/\\.*'" matches hidden files/folders inside $dir but not
     # $dir itself, even if hidden.
-    set -q FZF_CTRL_T_COMMAND; or set -l FZF_CTRL_T_COMMAND "
+    test -n "$FZF_CTRL_T_COMMAND"; or set -l FZF_CTRL_T_COMMAND "
     command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | sed 's@^\./@@'"
 
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$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
@@ -36,7 +49,7 @@ function fzf_key_bindings
   end
 
   function fzf-history-widget -d "Show command history"
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     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"
 
@@ -62,10 +75,10 @@ function fzf_key_bindings
     set -l dir $commandline[1]
     set -l fzf_query $commandline[2]
 
-    set -q FZF_ALT_C_COMMAND; or set -l FZF_ALT_C_COMMAND "
+    test -n "$FZF_ALT_C_COMMAND"; or set -l FZF_ALT_C_COMMAND "
     command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type d -print 2> /dev/null | sed 's@^\./@@'"
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
       set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
       eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)' +m --query "'$fzf_query'"' | read -l result
@@ -82,10 +95,12 @@ function fzf_key_bindings
   end
 
   function __fzfcmd
-    set -q FZF_TMUX; or set FZF_TMUX 0
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
-    if [ $FZF_TMUX -eq 1 ]
-      echo "fzf-tmux -d$FZF_TMUX_HEIGHT"
+    test -n "$FZF_TMUX"; or set FZF_TMUX 0
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
+    if [ -n "$FZF_TMUX_OPTS" ]
+      echo "fzf-tmux $FZF_TMUX_OPTS -- "
+    else if [ $FZF_TMUX -eq 1 ]
+      echo "fzf-tmux -d$FZF_TMUX_HEIGHT -- "
     else
       echo "fzf"
     end

shell/key-bindings.zsh

@@ -1,6 +1,42 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.zsh
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
-if [[ $- == *i* ]]; then
+
+# The code at the top and the bottom of this file is the same as in completion.zsh.
+# Refer to that file for explanation.
+if 'zmodload' 'zsh/parameter' 2>'/dev/null' && (( ${+options} )); then
+  __fzf_key_bindings_options="options=(${(j: :)${(kv)options[@]}})"
+else
+  () {
+    __fzf_key_bindings_options="setopt"
+    'local' '__fzf_opt'
+    for __fzf_opt in "${(@)${(@f)$(set -o)}%% *}"; do
+      if [[ -o "$__fzf_opt" ]]; then
+        __fzf_key_bindings_options+=" -o $__fzf_opt"
+      else
+        __fzf_key_bindings_options+=" +o $__fzf_opt"
+      fi
+    done
+  }
+fi
+
+'emulate' 'zsh' '-o' 'no_aliases'
+
+{
+
+[[ -o interactive ]] || return 0
 
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
@@ -17,13 +53,9 @@ __fsel() {
   return $ret
 }
 
-__fzf_use_tmux__() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
-}
-
 __fzfcmd() {
-  __fzf_use_tmux__ &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+    echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
 fzf-file-widget() {
@@ -55,9 +87,15 @@ fzf-cd-widget() {
     zle redisplay
     return 0
   fi
-  cd "$dir"
-  unset dir # ensure this doesn't end up appearing in prompt expansion
+  if [ -z "$BUFFER" ]; then
+    BUFFER="cd ${(q)dir}"
+    zle accept-line
+  else
+    print -sr "cd ${(q)dir}"
+    cd "$dir"
+  fi
   local ret=$?
+  unset dir # ensure this doesn't end up appearing in prompt expansion
   zle fzf-redraw-prompt
   return $ret
 }
@@ -68,7 +106,7 @@ bindkey '\ec' fzf-cd-widget
 fzf-history-widget() {
   local selected num
   setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
-  selected=( $(fc -rl 1 |
+  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{(/^\s*[0-9]+\**\s+(.*)/, $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
@@ -83,4 +121,7 @@ fzf-history-widget() {
 zle     -N   fzf-history-widget
 bindkey '^R' fzf-history-widget
 
-fi
+} always {
+  eval $__fzf_key_bindings_options
+  'unset' '__fzf_key_bindings_options'
+}

src/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2020 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/algo/algo.go

@@ -773,12 +773,17 @@ func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 		return Result{0, 0, 0}, nil
 	}
 
-	if text.Length() < len(pattern) {
+	trimmedLen := 0
+	if !unicode.IsSpace(pattern[0]) {
+		trimmedLen = text.LeadingWhitespaces()
+	}
+
+	if text.Length()-trimmedLen < len(pattern) {
 		return Result{-1, -1, 0}, nil
 	}
 
 	for index, r := range pattern {
-		char := text.Get(index)
+		char := text.Get(trimmedLen + index)
 		if !caseSensitive {
 			char = unicode.ToLower(char)
 		}
@@ -790,14 +795,17 @@ func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 		}
 	}
 	lenPattern := len(pattern)
-	score, _ := calculateScore(caseSensitive, normalize, text, pattern, 0, lenPattern, false)
-	return Result{0, lenPattern, score}, nil
+	score, _ := calculateScore(caseSensitive, normalize, text, pattern, trimmedLen, trimmedLen+lenPattern, false)
+	return Result{trimmedLen, trimmedLen + lenPattern, score}, nil
 }
 
 // SuffixMatch performs suffix-match
 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()
+	trimmedLen := lenRunes
+	if len(pattern) == 0 || !unicode.IsSpace(pattern[len(pattern)-1]) {
+		trimmedLen -= text.TrailingWhitespaces()
+	}
 	if len(pattern) == 0 {
 		return Result{trimmedLen, trimmedLen, 0}, nil
 	}
@@ -828,14 +836,30 @@ func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 // EqualMatch performs equal-match
 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 {
+	if lenPattern == 0 {
+		return Result{-1, -1, 0}, nil
+	}
+
+	// Strip leading whitespaces
+	trimmedLen := 0
+	if !unicode.IsSpace(pattern[0]) {
+		trimmedLen = text.LeadingWhitespaces()
+	}
+
+	// Strip trailing whitespaces
+	trimmedEndLen := 0
+	if !unicode.IsSpace(pattern[lenPattern-1]) {
+		trimmedEndLen = text.TrailingWhitespaces()
+	}
+
+	if text.Length()-trimmedLen-trimmedEndLen != lenPattern {
 		return Result{-1, -1, 0}, nil
 	}
 	match := true
 	if normalize {
 		runes := text.ToRunes()
 		for idx, pchar := range pattern {
-			char := runes[idx]
+			char := runes[trimmedLen+idx]
 			if !caseSensitive {
 				char = unicode.To(unicode.LowerCase, char)
 			}
@@ -845,14 +869,15 @@ func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Cha
 			}
 		}
 	} else {
-		runesStr := text.ToString()
+		runes := text.ToRunes()
+		runesStr := string(runes[trimmedLen : len(runes)-trimmedEndLen])
 		if !caseSensitive {
 			runesStr = strings.ToLower(runesStr)
 		}
 		match = runesStr == string(pattern)
 	}
 	if match {
-		return Result{0, lenPattern, (scoreMatch+bonusBoundary)*lenPattern +
+		return Result{trimmedLen, trimmedLen + lenPattern, (scoreMatch+bonusBoundary)*lenPattern +
 			(bonusFirstCharMultiplier-1)*bonusBoundary}, nil
 	}
 	return Result{-1, -1, 0}, nil

src/algo/algo_test.go

@@ -136,6 +136,10 @@ func TestPrefixMatch(t *testing.T) {
 		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3, score)
 		assertMatch(t, PrefixMatch, false, dir, "foOBarBaZ", "foo", 0, 3, score)
 		assertMatch(t, PrefixMatch, false, dir, "f-oBarbaz", "f-o", 0, 3, score)
+
+		assertMatch(t, PrefixMatch, false, dir, " fooBar", "foo", 1, 4, score)
+		assertMatch(t, PrefixMatch, false, dir, " fooBar", " fo", 0, 3, score)
+		assertMatch(t, PrefixMatch, false, dir, "     fo", "foo", -1, -1, 0)
 	}
 }
 
@@ -148,6 +152,13 @@ func TestSuffixMatch(t *testing.T) {
 			scoreMatch*3+bonusConsecutive*2)
 		assertMatch(t, SuffixMatch, false, dir, "fooBarBaZ", "baz", 6, 9,
 			(scoreMatch+bonusCamel123)*3+bonusCamel123*(bonusFirstCharMultiplier-1))
+
+		// Strip trailing white space from the string
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz ", "baz", 6, 9,
+			scoreMatch*3+bonusConsecutive*2)
+		// Only when the pattern doesn't end with a space
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz ", "baz ", 6, 10,
+			scoreMatch*4+bonusConsecutive*2+bonusNonWord)
 	}
 }
 

src/algo/normalize.go

@@ -405,6 +405,74 @@ var normalized map[rune]rune = map[rune]rune{
 	0x024E: 'Y', //  WITH STROKE, LATIN CAPITAL LETTER
 	0x028F: 'Y', // , LATIN LETTER SMALL CAPITAL
 	0x1D22: 'Z', // , LATIN LETTER SMALL CAPITAL
+
+	'Ắ': 'A',
+	'Ấ': 'A',
+	'Ằ': 'A',
+	'Ầ': 'A',
+	'Ẳ': 'A',
+	'Ẩ': 'A',
+	'Ẵ': 'A',
+	'Ẫ': 'A',
+	'Ặ': 'A',
+	'Ậ': 'A',
+
+	'ắ': 'a',
+	'ấ': 'a',
+	'ằ': 'a',
+	'ầ': 'a',
+	'ẳ': 'a',
+	'ẩ': 'a',
+	'ẵ': 'a',
+	'ẫ': 'a',
+	'ặ': 'a',
+	'ậ': 'a',
+
+	'Ế': 'E',
+	'Ề': 'E',
+	'Ể': 'E',
+	'Ễ': 'E',
+	'Ệ': 'E',
+
+	'ế': 'e',
+	'ề': 'e',
+	'ể': 'e',
+	'ễ': 'e',
+	'ệ': 'e',
+
+	'Ố': 'O',
+	'Ớ': 'O',
+	'Ồ': 'O',
+	'Ờ': 'O',
+	'Ổ': 'O',
+	'Ở': 'O',
+	'Ỗ': 'O',
+	'Ỡ': 'O',
+	'Ộ': 'O',
+	'Ợ': 'O',
+
+	'ố': 'o',
+	'ớ': 'o',
+	'ồ': 'o',
+	'ờ': 'o',
+	'ổ': 'o',
+	'ở': 'o',
+	'ỗ': 'o',
+	'ỡ': 'o',
+	'ộ': 'o',
+	'ợ': 'o',
+
+	'Ứ': 'U',
+	'Ừ': 'U',
+	'Ử': 'U',
+	'Ữ': 'U',
+	'Ự': 'U',
+
+	'ứ': 'u',
+	'ừ': 'u',
+	'ử': 'u',
+	'ữ': 'u',
+	'ự': 'u',
 }
 
 // NormalizeRunes normalizes latin script letters

src/ansi.go

@@ -90,10 +90,11 @@ func init() {
 		- http://ascii-table.com/ansi-escape-sequences.php
 		- http://ascii-table.com/ansi-escape-sequences-vt-100.php
 		- http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
+		- https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
 	*/
 	// 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.|[\x0e\x0f]|.\x08)")
+	ansiRegex = regexp.MustCompile("(?:\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)|\x1b.|[\x0e\x0f]|.\x08)")
 }
 
 func findAnsiStart(str string) int {
@@ -243,6 +244,10 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 					state.attr = state.attr | tui.Blink
 				case 7:
 					state.attr = state.attr | tui.Reverse
+				case 23: // tput rmso
+					state.attr = state.attr &^ tui.Italic
+				case 24: // tput rmul
+					state.attr = state.attr &^ tui.Underline
 				case 0:
 					init()
 				default:

src/constants.go

@@ -10,7 +10,7 @@ import (
 
 const (
 	// Current version
-	version = "0.20.0"
+	version = "0.23.1"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
@@ -25,7 +25,7 @@ const (
 	// Terminal
 	initialDelay      = 20 * time.Millisecond
 	initialDelayTac   = 100 * time.Millisecond
-	spinnerDuration   = 200 * time.Millisecond
+	spinnerDuration   = 100 * time.Millisecond
 	previewCancelWait = 500 * time.Millisecond
 	maxPatternLength  = 300
 	maxMulti          = math.MaxInt32
@@ -62,8 +62,6 @@ func init() {
 		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!)`
 	}
 }
 

src/options.go

@@ -6,12 +6,13 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
+	"unicode"
 	"unicode/utf8"
 
 	"github.com/junegunn/fzf/src/algo"
 	"github.com/junegunn/fzf/src/tui"
-	"github.com/junegunn/fzf/src/util"
 
+	"github.com/mattn/go-runewidth"
 	"github.com/mattn/go-shellwords"
 )
 
@@ -43,6 +44,7 @@ const usage = `usage: fzf [options]
     --no-mouse            Disable mouse
     --bind=KEYBINDS       Custom key bindings. Refer to the man page.
     --cycle               Enable cyclic scroll
+    --keep-right          Keep the right end of the line visible on overflow
     --no-hscroll          Disable horizontal scroll
     --hscroll-off=COL     Number of screen columns to keep to the right of the
                           highlighted substring (default: 10)
@@ -55,10 +57,13 @@ const usage = `usage: fzf [options]
     --min-height=HEIGHT   Minimum height when --height is given in percent
                           (default: 10)
     --layout=LAYOUT       Choose layout: [default|reverse|reverse-list]
-    --border              Draw border above and below the finder
+    --border[=STYLE]      Draw border around the finder
+                          [rounded|sharp|horizontal] (default: rounded)
     --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
     --info=STYLE          Finder info style [default|inline|hidden]
     --prompt=STR          Input prompt (default: '> ')
+    --pointer=STR         Pointer to the current line (default: '>')
+    --marker=STR          Multi-select marker (default: '>')
     --header=STR          String to print as header
     --header-lines=N      The first N lines of the input are treated as header
 
@@ -75,7 +80,11 @@ const usage = `usage: fzf [options]
   Preview
     --preview=COMMAND     Command to preview highlighted line ({})
     --preview-window=OPT  Preview window layout (default: right:50%)
-                          [up|down|left|right][:SIZE[%]][:wrap][:hidden]
+                          [up|down|left|right][:SIZE[%]]
+                          [:[no]wrap][:[no]cycle][:[no]hidden]
+                          [:rounded|sharp|noborder]
+                          [:+SCROLL[-OFFSET]]
+                          [:default]
 
   Scripting
     -q, --query=STR       Start the finder with the given query
@@ -154,9 +163,11 @@ type previewOpts struct {
 	command  string
 	position windowPosition
 	size     sizeSpec
+	scroll   string
 	hidden   bool
 	wrap     bool
-	border   bool
+	cycle    bool
+	border   tui.BorderShape
 }
 
 // Options stores the values of command-line options
@@ -183,12 +194,15 @@ type Options struct {
 	MinHeight   int
 	Layout      layoutType
 	Cycle       bool
+	KeepRight   bool
 	Hscroll     bool
 	HscrollOff  int
 	FileWord    bool
 	InfoStyle   infoStyle
 	JumpLabels  string
 	Prompt      string
+	Pointer     string
+	Marker      string
 	Query       string
 	Select1     bool
 	Exit0       bool
@@ -206,13 +220,17 @@ type Options struct {
 	Header      []string
 	HeaderLines int
 	Margin      [4]sizeSpec
-	Bordered    bool
+	BorderShape tui.BorderShape
 	Unicode     bool
 	Tabstop     int
 	ClearOnExit bool
 	Version     bool
 }
 
+func defaultPreviewOpts(command string) previewOpts {
+	return previewOpts{command, posRight, sizeSpec{50, true}, "", false, false, false, tui.BorderRounded}
+}
+
 func defaultOptions() *Options {
 	return &Options{
 		Fuzzy:       true,
@@ -236,12 +254,15 @@ func defaultOptions() *Options {
 		MinHeight:   10,
 		Layout:      layoutDefault,
 		Cycle:       false,
+		KeepRight:   false,
 		Hscroll:     true,
 		HscrollOff:  10,
 		FileWord:    false,
 		InfoStyle:   infoDefault,
 		JumpLabels:  defaultJumpLabels,
 		Prompt:      "> ",
+		Pointer:     ">",
+		Marker:      ">",
 		Query:       "",
 		Select1:     false,
 		Exit0:       false,
@@ -249,7 +270,7 @@ func defaultOptions() *Options {
 		ToggleSort:  false,
 		Expect:      make(map[int]string),
 		Keymap:      make(map[int][]action),
-		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, false, false, true},
+		Preview:     defaultPreviewOpts(""),
 		PrintQuery:  false,
 		ReadZero:    false,
 		Printer:     func(str string) { fmt.Println(str) },
@@ -293,12 +314,12 @@ func nextString(args []string, i *int, message string) string {
 	return args[*i]
 }
 
-func optionalNextString(args []string, i *int) string {
-	if len(args) > *i+1 && !strings.HasPrefix(args[*i+1], "-") {
+func optionalNextString(args []string, i *int) (bool, string) {
+	if len(args) > *i+1 && !strings.HasPrefix(args[*i+1], "-") && !strings.HasPrefix(args[*i+1], "+") {
 		*i++
-		return args[*i]
+		return true, args[*i]
 	}
-	return ""
+	return false, ""
 }
 
 func atoi(str string) int {
@@ -392,6 +413,23 @@ func parseAlgo(str string) algo.Algo {
 	return algo.FuzzyMatchV2
 }
 
+func parseBorder(str string, optional bool) tui.BorderShape {
+	switch str {
+	case "rounded":
+		return tui.BorderRounded
+	case "sharp":
+		return tui.BorderSharp
+	case "horizontal":
+		return tui.BorderHorizontal
+	default:
+		if optional && str == "" {
+			return tui.BorderRounded
+		}
+		errorExit("invalid border style (expected: rounded|sharp|horizontal)")
+	}
+	return tui.BorderNone
+}
+
 func parseKeyChords(str string, message string) map[int]string {
 	if len(str) == 0 {
 		errorExit(message)
@@ -436,6 +474,8 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.CtrlRightBracket
 		case "change":
 			chord = tui.Change
+		case "backward-eof":
+			chord = tui.BackwardEOF
 		case "alt-enter", "alt-return":
 			chord = tui.CtrlAltM
 		case "alt-space":
@@ -464,6 +504,8 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.Home
 		case "end":
 			chord = tui.End
+		case "insert":
+			chord = tui.Insert
 		case "pgup", "page-up":
 			chord = tui.PgUp
 		case "pgdn", "page-down":
@@ -652,7 +694,7 @@ func init() {
 	// Backreferences are not supported.
 	// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
 	executeRegexp = regexp.MustCompile(
-		`(?si)[:+](execute(?:-multi|-silent)?|reload):.+|[:+](execute(?:-multi|-silent)?|reload)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
+		`(?si)[:+](execute(?:-multi|-silent)?|reload|preview):.+|[:+](execute(?:-multi|-silent)?|reload|preview)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
 }
 
 func parseKeymap(keymap map[int][]action, str string) {
@@ -664,6 +706,8 @@ func parseKeymap(keymap map[int][]action, str string) {
 		prefix := symbol + "execute"
 		if strings.HasPrefix(src[1:], "reload") {
 			prefix = symbol + "reload"
+		} else if strings.HasPrefix(src[1:], "preview") {
+			prefix = symbol + "preview"
 		} else if src[len(prefix)] == '-' {
 			c := src[len(prefix)+1]
 			if c == 's' || c == 'S' {
@@ -724,12 +768,16 @@ func parseKeymap(keymap map[int][]action, str string) {
 				appendAction(actAcceptNonEmpty)
 			case "print-query":
 				appendAction(actPrintQuery)
+			case "refresh-preview":
+				appendAction(actRefreshPreview)
 			case "replace-query":
 				appendAction(actReplaceQuery)
 			case "backward-char":
 				appendAction(actBackwardChar)
 			case "backward-delete-char":
 				appendAction(actBackwardDeleteChar)
+			case "backward-delete-char/eof":
+				appendAction(actBackwardDeleteCharEOF)
 			case "backward-word":
 				appendAction(actBackwardWord)
 			case "clear-screen":
@@ -814,6 +862,10 @@ func parseKeymap(keymap map[int][]action, str string) {
 				appendAction(actPreviewPageUp)
 			case "preview-page-down":
 				appendAction(actPreviewPageDown)
+			case "preview-half-page-up":
+				appendAction(actPreviewHalfPageUp)
+			case "preview-half-page-down":
+				appendAction(actPreviewHalfPageDown)
 			default:
 				t := isExecuteAction(specLower)
 				if t == actIgnore {
@@ -827,6 +879,8 @@ func parseKeymap(keymap map[int][]action, str string) {
 					switch t {
 					case actReload:
 						offset = len("reload")
+					case actPreview:
+						offset = len("preview")
 					case actExecuteSilent:
 						offset = len("execute-silent")
 					case actExecuteMulti:
@@ -864,6 +918,8 @@ func isExecuteAction(str string) actionType {
 	switch prefix {
 	case "reload":
 		return actReload
+	case "preview":
+		return actPreview
 	case "execute":
 		return actExecute
 	case "execute-silent":
@@ -944,21 +1000,26 @@ func parseInfoStyle(str string) infoStyle {
 }
 
 func parsePreviewWindow(opts *previewOpts, input string) {
-	// Default
-	opts.position = posRight
-	opts.size = sizeSpec{50, true}
-	opts.hidden = false
-	opts.wrap = false
-
 	tokens := strings.Split(input, ":")
 	sizeRegex := regexp.MustCompile("^[0-9]+%?$")
+	offsetRegex := regexp.MustCompile("^\\+([0-9]+|{-?[0-9]+})(-[0-9]+|-/[1-9][0-9]*)?$")
 	for _, token := range tokens {
 		switch token {
 		case "":
+		case "default":
+			*opts = defaultPreviewOpts(opts.command)
 		case "hidden":
 			opts.hidden = true
+		case "nohidden":
+			opts.hidden = false
 		case "wrap":
 			opts.wrap = true
+		case "nowrap":
+			opts.wrap = false
+		case "cycle":
+			opts.cycle = true
+		case "nocycle":
+			opts.cycle = false
 		case "up", "top":
 			opts.position = posUp
 		case "down", "bottom":
@@ -967,26 +1028,22 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 			opts.position = posLeft
 		case "right":
 			opts.position = posRight
-		case "border":
-			opts.border = true
+		case "rounded", "border":
+			opts.border = tui.BorderRounded
+		case "sharp":
+			opts.border = tui.BorderSharp
 		case "noborder":
-			opts.border = false
+			opts.border = tui.BorderNone
 		default:
 			if sizeRegex.MatchString(token) {
 				opts.size = parseSize(token, 99, "window size")
+			} else if offsetRegex.MatchString(token) {
+				opts.scroll = token[1:]
 			} else {
-				errorExit("invalid preview window layout: " + input)
+				errorExit("invalid preview window option: " + token)
 			}
 		}
 	}
-	if !opts.size.percent && opts.size.size > 0 {
-		// Adjust size for border
-		opts.size.size += 2
-		// And padding
-		if opts.position == posLeft || opts.position == posRight {
-			opts.size.size += 2
-		}
-	}
 }
 
 func parseMargin(margin string) [4]sizeSpec {
@@ -1041,6 +1098,8 @@ func parseOptions(opts *Options, allArgs []string) {
 		}
 	}
 	validateJumpLabels := false
+	validatePointer := false
+	validateMarker := false
 	for i := 0; i < len(allArgs); i++ {
 		arg := allArgs[i]
 		switch arg {
@@ -1084,7 +1143,7 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--bind":
 			parseKeymap(opts.Keymap, nextString(allArgs, &i, "bind expression required"))
 		case "--color":
-			spec := optionalNextString(allArgs, &i)
+			_, spec := optionalNextString(allArgs, &i)
 			if len(spec) == 0 {
 				opts.Theme = tui.EmptyTheme()
 			} else {
@@ -1143,6 +1202,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Cycle = true
 		case "--no-cycle":
 			opts.Cycle = false
+		case "--keep-right":
+			opts.KeepRight = true
+		case "--no-keep-right":
+			opts.KeepRight = false
 		case "--hscroll":
 			opts.Hscroll = true
 		case "--no-hscroll":
@@ -1189,6 +1252,12 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.PrintQuery = false
 		case "--prompt":
 			opts.Prompt = nextString(allArgs, &i, "prompt string required")
+		case "--pointer":
+			opts.Pointer = nextString(allArgs, &i, "pointer sign string required")
+			validatePointer = true
+		case "--marker":
+			opts.Marker = nextString(allArgs, &i, "selected sign string required")
+			validateMarker = true
 		case "--sync":
 			opts.Sync = true
 		case "--no-sync":
@@ -1216,7 +1285,7 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Preview.command = ""
 		case "--preview-window":
 			parsePreviewWindow(&opts.Preview,
-				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:noborder][:wrap][:hidden]"))
+				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:rounded|sharp|noborder][:wrap][:cycle][:hidden][:+SCROLL[-OFFSET]][:default]"))
 		case "--height":
 			opts.Height = parseHeight(nextString(allArgs, &i, "height required: HEIGHT[%]"))
 		case "--min-height":
@@ -1226,9 +1295,10 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--no-margin":
 			opts.Margin = defaultMargin()
 		case "--no-border":
-			opts.Bordered = false
+			opts.BorderShape = tui.BorderNone
 		case "--border":
-			opts.Bordered = true
+			hasArg, arg := optionalNextString(allArgs, &i)
+			opts.BorderShape = parseBorder(arg, !hasArg)
 		case "--no-unicode":
 			opts.Unicode = false
 		case "--unicode":
@@ -1253,8 +1323,16 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Filter = &value
 			} else if match, value := optString(arg, "-d", "--delimiter="); match {
 				opts.Delimiter = delimiterRegexp(value)
+			} else if match, value := optString(arg, "--border="); match {
+				opts.BorderShape = parseBorder(value, false)
 			} else if match, value := optString(arg, "--prompt="); match {
 				opts.Prompt = value
+			} else if match, value := optString(arg, "--pointer="); match {
+				opts.Pointer = value
+				validatePointer = true
+			} else if match, value := optString(arg, "--marker="); match {
+				opts.Marker = value
+				validateMarker = true
 			} else if match, value := optString(arg, "-n", "--nth="); match {
 				opts.Nth = splitNth(value)
 			} else if match, value := optString(arg, "--with-nth="); match {
@@ -1303,6 +1381,7 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.HscrollOff = atoi(value)
 			} else if match, value := optString(arg, "--jump-labels="); match {
 				opts.JumpLabels = value
+				validateJumpLabels = true
 			} else {
 				errorExit("unknown option: " + arg)
 			}
@@ -1332,11 +1411,40 @@ func parseOptions(opts *Options, allArgs []string) {
 			}
 		}
 	}
+
+	if validatePointer {
+		if err := validateSign(opts.Pointer, "pointer"); err != nil {
+			errorExit(err.Error())
+		}
+	}
+
+	if validateMarker {
+		if err := validateSign(opts.Marker, "marker"); err != nil {
+			errorExit(err.Error())
+		}
+	}
+}
+
+func validateSign(sign string, signOptName string) error {
+	if sign == "" {
+		return fmt.Errorf("%v cannot be empty", signOptName)
+	}
+	widthSum := 0
+	for _, r := range sign {
+		if !unicode.IsGraphic(r) {
+			return fmt.Errorf("invalid character in %v", signOptName)
+		}
+		widthSum += runewidth.RuneWidth(r)
+		if widthSum > 2 {
+			return fmt.Errorf("%v display width should be up to 2", signOptName)
+		}
+	}
+	return nil
 }
 
 func postProcessOptions(opts *Options) {
-	if util.IsWindows() && opts.Height.size > 0 {
-		errorExit("--height option is currently not supported on Windows")
+	if !tui.IsLightRendererSupported() && opts.Height.size > 0 {
+		errorExit("--height option is currently not supported on this platform")
 	}
 	// Default actions for CTRL-N / CTRL-P when --history is set
 	if opts.History != nil {

src/options_test.go

@@ -387,23 +387,26 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.size.size == 50) {
 		t.Error()
 	}
-	opts = optsFor("--preview", "cat {}", "--preview-window=left:15:hidden:wrap")
+	opts = optsFor("--preview", "cat {}", "--preview-window=left:15:hidden:wrap:+{1}-/2")
 	if !(opts.Preview.command == "cat {}" &&
 		opts.Preview.hidden == true &&
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posLeft &&
+		opts.Preview.scroll == "{1}-/2" &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2+2) {
+		opts.Preview.size.size == 15) {
 		t.Error(opts.Preview)
 	}
-	opts = optsFor("--preview-window=up:15:wrap:hidden", "--preview-window=down")
+	opts = optsFor("--preview-window=up:15:wrap:hidden:+{1}-/2", "--preview-window=down", "--preview-window=cycle")
 	if !(opts.Preview.command == "" &&
-		opts.Preview.hidden == false &&
-		opts.Preview.wrap == false &&
+		opts.Preview.hidden == true &&
+		opts.Preview.wrap == true &&
+		opts.Preview.cycle == true &&
 		opts.Preview.position == posDown &&
-		opts.Preview.size.percent == true &&
-		opts.Preview.size.size == 50) {
-		t.Error(opts.Preview)
+		opts.Preview.scroll == "{1}-/2" &&
+		opts.Preview.size.percent == false &&
+		opts.Preview.size.size == 15) {
+		t.Error(opts.Preview.size.size)
 	}
 	opts = optsFor("--preview-window=up:15:wrap:hidden")
 	if !(opts.Preview.command == "" &&
@@ -411,7 +414,14 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posUp &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2) {
+		opts.Preview.size.size == 15) {
+		t.Error(opts.Preview)
+	}
+	opts = optsFor("--preview=foo", "--preview-window=up", "--preview-window=default:70%")
+	if !(opts.Preview.command == "foo" &&
+		opts.Preview.position == posRight &&
+		opts.Preview.size.percent == true &&
+		opts.Preview.size.size == 70) {
 		t.Error(opts.Preview)
 	}
 }
@@ -422,3 +432,29 @@ func TestAdditiveExpect(t *testing.T) {
 		t.Error(opts.Expect)
 	}
 }
+
+func TestValidateSign(t *testing.T) {
+	testCases := []struct {
+		inputSign string
+		isValid   bool
+	}{
+		{"> ", true},
+		{"아", true},
+		{"😀", true},
+		{"", false},
+		{">>>", false},
+		{"\n", false},
+		{"\t", false},
+	}
+
+	for _, testCase := range testCases {
+		err := validateSign(testCase.inputSign, "")
+		if testCase.isValid && err != nil {
+			t.Errorf("Input sign `%s` caused error", testCase.inputSign)
+		}
+
+		if !testCase.isValid && err == nil {
+			t.Errorf("Input sign `%s` did not cause error", testCase.inputSign)
+		}
+	}
+}

src/pattern.go

@@ -33,6 +33,7 @@ type term struct {
 	inv           bool
 	text          []rune
 	caseSensitive bool
+	normalize     bool
 }
 
 // String returns the string representation of a term.
@@ -128,6 +129,8 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 		}
 	} else {
 		lowerString := strings.ToLower(asString)
+		normalize = normalize &&
+			lowerString == string(algo.NormalizeRunes([]rune(lowerString)))
 		caseSensitive = caseMode == CaseRespect ||
 			caseMode == CaseSmart && lowerString != asString
 		if !caseSensitive {
@@ -173,6 +176,8 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 		lowerText := strings.ToLower(text)
 		caseSensitive := caseMode == CaseRespect ||
 			caseMode == CaseSmart && text != lowerText
+		normalizeTerm := normalize &&
+			lowerText == string(algo.NormalizeRunes([]rune(lowerText)))
 		if !caseSensitive {
 			text = lowerText
 		}
@@ -222,14 +227,15 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 				set = termSet{}
 			}
 			textRunes := []rune(text)
-			if normalize {
+			if normalizeTerm {
 				textRunes = algo.NormalizeRunes(textRunes)
 			}
 			set = append(set, term{
 				typ:           typ,
 				inv:           inv,
 				text:          textRunes,
-				caseSensitive: caseSensitive})
+				caseSensitive: caseSensitive,
+				normalize:     normalizeTerm})
 			switchSet = true
 		}
 	}
@@ -360,7 +366,7 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 		matched := false
 		for _, term := range termSet {
 			pfun := p.procFun[term.typ]
-			off, score, pos := p.iter(pfun, input, term.caseSensitive, p.normalize, p.forward, term.text, withPos, slab)
+			off, score, pos := p.iter(pfun, input, term.caseSensitive, term.normalize, p.forward, term.text, withPos, slab)
 			if sidx := off[0]; sidx >= 0 {
 				if term.inv {
 					continue

src/pattern_test.go

@@ -98,6 +98,9 @@ func TestEqual(t *testing.T) {
 	}
 	match("ABC", -1, -1)
 	match("AbC", 0, 3)
+	match("AbC  ", 0, 3)
+	match(" AbC ", 1, 4)
+	match("  AbC", 2, 5)
 }
 
 func TestCaseSensitivity(t *testing.T) {

src/protector/protector.go

@@ -0,0 +1,8 @@
+// +build !openbsd
+
+package protector
+
+// Protect calls OS specific protections like pledge on OpenBSD
+func Protect() {
+	return
+}

src/protector/protector_openbsd.go

@@ -0,0 +1,10 @@
+// +build openbsd
+
+package protector
+
+import "golang.org/x/sys/unix"
+
+// Protect calls OS specific protections like pledge on OpenBSD
+func Protect() {
+	unix.PledgePromises("stdio rpath tty proc exec")
+}

src/reader.go

@@ -2,14 +2,17 @@ package fzf
 
 import (
 	"bufio"
+	"context"
 	"io"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"sync"
 	"sync/atomic"
 	"time"
 
 	"github.com/junegunn/fzf/src/util"
+	"github.com/saracen/walker"
 )
 
 // Reader reads from command or standard input
@@ -78,7 +81,7 @@ func (r *Reader) terminate() {
 	r.killed = true
 	if r.exec != nil && r.exec.Process != nil {
 		util.KillCommand(r.exec)
-	} else {
+	} else if defaultCommand != "" {
 		os.Stdin.Close()
 	}
 }
@@ -99,7 +102,11 @@ func (r *Reader) ReadSource() {
 		shell := "bash"
 		cmd := os.Getenv("FZF_DEFAULT_COMMAND")
 		if len(cmd) == 0 {
-			success = r.readFromCommand(&shell, defaultCommand)
+			if defaultCommand != "" {
+				success = r.readFromCommand(&shell, defaultCommand)
+			} else {
+				success = r.readFiles()
+			}
 		} else {
 			success = r.readFromCommand(nil, cmd)
 		}
@@ -144,6 +151,32 @@ func (r *Reader) readFromStdin() bool {
 	return true
 }
 
+func (r *Reader) readFiles() bool {
+	r.killed = false
+	fn := func(path string, mode os.FileInfo) error {
+		path = filepath.Clean(path)
+		if path != "." {
+			isDir := mode.Mode().IsDir()
+			if isDir && filepath.Base(path)[0] == '.' {
+				return filepath.SkipDir
+			}
+			if !isDir && r.pusher([]byte(path)) {
+				atomic.StoreInt32(&r.event, int32(EvtReadNew))
+			}
+		}
+		r.mutex.Lock()
+		defer r.mutex.Unlock()
+		if r.killed {
+			return context.Canceled
+		}
+		return nil
+	}
+	cb := walker.WithErrorCallback(func(pathname string, err error) error {
+		return nil
+	})
+	return walker.Walk(".", fn, cb) == nil
+}
+
 func (r *Reader) readFromCommand(shell *string, command string) bool {
 	r.mutex.Lock()
 	r.killed = false

src/terminal.go

@@ -23,10 +23,14 @@ import (
 // import "github.com/pkg/profile"
 
 var placeholder *regexp.Regexp
+var numericPrefix *regexp.Regexp
 var activeTempFiles []string
 
+const ellipsis string = ".."
+
 func init() {
 	placeholder = regexp.MustCompile(`\\?(?:{[+sf]*[0-9,-.]*}|{q}|{\+?f?nf?})`)
+	numericPrefix = regexp.MustCompile(`^[[:punct:]]*([0-9]+)`)
 	activeTempFiles = []string{}
 }
 
@@ -59,71 +63,79 @@ var emptyLine = itemLine{}
 
 // Terminal represents terminal input/output
 type Terminal struct {
-	initDelay  time.Duration
-	infoStyle  infoStyle
-	prompt     string
-	promptLen  int
-	queryLen   [2]int
-	layout     layoutType
-	fullscreen bool
-	hscroll    bool
-	hscrollOff int
-	wordRubout string
-	wordNext   string
-	cx         int
-	cy         int
-	offset     int
-	xoffset    int
-	yanked     []rune
-	input      []rune
-	multi      int
-	sort       bool
-	toggleSort bool
-	delimiter  Delimiter
-	expect     map[int]string
-	keymap     map[int][]action
-	pressed    string
-	printQuery bool
-	history    *History
-	cycle      bool
-	header     []string
-	header0    []string
-	ansi       bool
-	tabstop    int
-	margin     [4]sizeSpec
-	strong     tui.Attr
-	unicode    bool
-	bordered   bool
-	cleanExit  bool
-	border     tui.Window
-	window     tui.Window
-	pborder    tui.Window
-	pwindow    tui.Window
-	count      int
-	progress   int
-	reading    bool
-	failed     *string
-	jumping    jumpMode
-	jumpLabels string
-	printer    func(string)
-	printsep   string
-	merger     *Merger
-	selected   map[int32]selectedItem
-	version    int64
-	reqBox     *util.EventBox
-	preview    previewOpts
-	previewer  previewer
-	previewBox *util.EventBox
-	eventBox   *util.EventBox
-	mutex      sync.Mutex
-	initFunc   func()
-	prevLines  []itemLine
-	suppress   bool
-	startChan  chan bool
-	killChan   chan int
-	slab       *util.Slab
-	theme      *tui.ColorTheme
-	tui        tui.Renderer
+	initDelay    time.Duration
+	infoStyle    infoStyle
+	spinner      []string
+	prompt       func()
+	promptLen    int
+	pointer      string
+	pointerLen   int
+	pointerEmpty string
+	marker       string
+	markerLen    int
+	markerEmpty  string
+	queryLen     [2]int
+	layout       layoutType
+	fullscreen   bool
+	keepRight    bool
+	hscroll      bool
+	hscrollOff   int
+	wordRubout   string
+	wordNext     string
+	cx           int
+	cy           int
+	offset       int
+	xoffset      int
+	yanked       []rune
+	input        []rune
+	multi        int
+	sort         bool
+	toggleSort   bool
+	delimiter    Delimiter
+	expect       map[int]string
+	keymap       map[int][]action
+	pressed      string
+	printQuery   bool
+	history      *History
+	cycle        bool
+	header       []string
+	header0      []string
+	ansi         bool
+	tabstop      int
+	margin       [4]sizeSpec
+	strong       tui.Attr
+	unicode      bool
+	borderShape  tui.BorderShape
+	cleanExit    bool
+	border       tui.Window
+	window       tui.Window
+	pborder      tui.Window
+	pwindow      tui.Window
+	count        int
+	progress     int
+	reading      bool
+	failed       *string
+	jumping      jumpMode
+	jumpLabels   string
+	printer      func(string)
+	printsep     string
+	merger       *Merger
+	selected     map[int32]selectedItem
+	version      int64
+	reqBox       *util.EventBox
+	preview      previewOpts
+	previewer    previewer
+	previewBox   *util.EventBox
+	eventBox     *util.EventBox
+	mutex        sync.Mutex
+	initFunc     func()
+	prevLines    []itemLine
+	suppress     bool
+	startChan    chan bool
+	killChan     chan int
+	slab         *util.Slab
+	theme        *tui.ColorTheme
+	tui          tui.Renderer
 }
 
 type selectedItem struct {
@@ -145,8 +157,6 @@ func (a byTimeOrder) Less(i, j int) bool {
 	return a[i].at.Before(a[j].at)
 }
 
-var _spinner = []string{`-`, `\`, `|`, `/`, `-`, `\`, `|`, `/`}
-
 const (
 	reqPrompt util.EventType = iota
 	reqInfo
@@ -182,6 +192,7 @@ const (
 	actAcceptNonEmpty
 	actBackwardChar
 	actBackwardDeleteChar
+	actBackwardDeleteCharEOF
 	actBackwardWord
 	actCancel
 	actClearScreen
@@ -215,14 +226,18 @@ const (
 	actJump
 	actJumpAccept
 	actPrintQuery
+	actRefreshPreview
 	actReplaceQuery
 	actToggleSort
 	actTogglePreview
 	actTogglePreviewWrap
+	actPreview
 	actPreviewUp
 	actPreviewDown
 	actPreviewPageUp
 	actPreviewPageDown
+	actPreviewHalfPageUp
+	actPreviewHalfPageDown
 	actPreviousHistory
 	actNextHistory
 	actExecute
@@ -246,6 +261,16 @@ type searchRequest struct {
 	command *string
 }
 
+type previewRequest struct {
+	template string
+	list     []*Item
+}
+
+type previewResult struct {
+	content string
+	offset  int
+}
+
 func toActions(types ...actionType) []action {
 	actions := make([]action, len(types))
 	for idx, t := range types {
@@ -317,6 +342,17 @@ func trimQuery(query string) []rune {
 	return []rune(strings.Replace(query, "\t", " ", -1))
 }
 
+func hasPreviewAction(opts *Options) bool {
+	for _, actions := range opts.Keymap {
+		for _, action := range actions {
+			if action.t == actPreview {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := trimQuery(opts.Query)
@@ -334,7 +370,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		delay = initialDelay
 	}
 	var previewBox *util.EventBox
-	if len(opts.Preview.command) > 0 {
+	if len(opts.Preview.command) > 0 || hasPreviewAction(opts) {
 		previewBox = util.NewEventBox()
 	}
 	strongAttr := tui.Bold
@@ -364,82 +400,107 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 				effectiveMinHeight *= 2
 			}
 			if opts.InfoStyle != infoDefault {
-				effectiveMinHeight -= 1
+				effectiveMinHeight--
 			}
-			if opts.Bordered {
+			if opts.BorderShape != tui.BorderNone {
 				effectiveMinHeight += 2
 			}
 			return util.Min(termHeight, util.Max(maxHeight, effectiveMinHeight))
 		}
 		renderer = tui.NewLightRenderer(opts.Theme, opts.Black, opts.Mouse, opts.Tabstop, opts.ClearOnExit, false, maxHeightFunc)
 	}
-	wordRubout := "[^[:alnum:]][[:alnum:]]"
-	wordNext := "[[:alnum:]][^[:alnum:]]|(.$)"
+	wordRubout := "[^\\pL\\pN][\\pL\\pN]"
+	wordNext := "[\\pL\\pN][^\\pL\\pN]|(.$)"
 	if opts.FileWord {
 		sep := regexp.QuoteMeta(string(os.PathSeparator))
 		wordRubout = fmt.Sprintf("%s[^%s]", sep, sep)
 		wordNext = fmt.Sprintf("[^%s]%s|(.$)", sep, sep)
 	}
+	spinner := []string{`⠋`, `⠙`, `⠹`, `⠸`, `⠼`, `⠴`, `⠦`, `⠧`, `⠇`, `⠏`}
+	if !opts.Unicode {
+		spinner = []string{`-`, `\`, `|`, `/`, `-`, `\`, `|`, `/`}
+	}
 	t := Terminal{
-		initDelay:  delay,
-		infoStyle:  opts.InfoStyle,
-		queryLen:   [2]int{0, 0},
-		layout:     opts.Layout,
-		fullscreen: fullscreen,
-		hscroll:    opts.Hscroll,
-		hscrollOff: opts.HscrollOff,
-		wordRubout: wordRubout,
-		wordNext:   wordNext,
-		cx:         len(input),
-		cy:         0,
-		offset:     0,
-		xoffset:    0,
-		yanked:     []rune{},
-		input:      input,
-		multi:      opts.Multi,
-		sort:       opts.Sort > 0,
-		toggleSort: opts.ToggleSort,
-		delimiter:  opts.Delimiter,
-		expect:     opts.Expect,
-		keymap:     opts.Keymap,
-		pressed:    "",
-		printQuery: opts.PrintQuery,
-		history:    opts.History,
-		margin:     opts.Margin,
-		unicode:    opts.Unicode,
-		bordered:   opts.Bordered,
-		cleanExit:  opts.ClearOnExit,
-		strong:     strongAttr,
-		cycle:      opts.Cycle,
-		header:     header,
-		header0:    header,
-		ansi:       opts.Ansi,
-		tabstop:    opts.Tabstop,
-		reading:    true,
-		failed:     nil,
-		jumping:    jumpDisabled,
-		jumpLabels: opts.JumpLabels,
-		printer:    opts.Printer,
-		printsep:   opts.PrintSep,
-		merger:     EmptyMerger,
-		selected:   make(map[int32]selectedItem),
-		reqBox:     util.NewEventBox(),
-		preview:    opts.Preview,
-		previewer:  previewer{"", 0, 0, previewBox != nil && !opts.Preview.hidden, false},
-		previewBox: previewBox,
-		eventBox:   eventBox,
-		mutex:      sync.Mutex{},
-		suppress:   true,
-		slab:       util.MakeSlab(slab16Size, slab32Size),
-		theme:      opts.Theme,
-		startChan:  make(chan bool, 1),
-		killChan:   make(chan int),
-		tui:        renderer,
-		initFunc:   func() { renderer.Init() }}
-	t.prompt, t.promptLen = t.processTabs([]rune(opts.Prompt), 0)
+		initDelay:   delay,
+		infoStyle:   opts.InfoStyle,
+		spinner:     spinner,
+		queryLen:    [2]int{0, 0},
+		layout:      opts.Layout,
+		fullscreen:  fullscreen,
+		keepRight:   opts.KeepRight,
+		hscroll:     opts.Hscroll,
+		hscrollOff:  opts.HscrollOff,
+		wordRubout:  wordRubout,
+		wordNext:    wordNext,
+		cx:          len(input),
+		cy:          0,
+		offset:      0,
+		xoffset:     0,
+		yanked:      []rune{},
+		input:       input,
+		multi:       opts.Multi,
+		sort:        opts.Sort > 0,
+		toggleSort:  opts.ToggleSort,
+		delimiter:   opts.Delimiter,
+		expect:      opts.Expect,
+		keymap:      opts.Keymap,
+		pressed:     "",
+		printQuery:  opts.PrintQuery,
+		history:     opts.History,
+		margin:      opts.Margin,
+		unicode:     opts.Unicode,
+		borderShape: opts.BorderShape,
+		cleanExit:   opts.ClearOnExit,
+		strong:      strongAttr,
+		cycle:       opts.Cycle,
+		header:      header,
+		header0:     header,
+		ansi:        opts.Ansi,
+		tabstop:     opts.Tabstop,
+		reading:     true,
+		failed:      nil,
+		jumping:     jumpDisabled,
+		jumpLabels:  opts.JumpLabels,
+		printer:     opts.Printer,
+		printsep:    opts.PrintSep,
+		merger:      EmptyMerger,
+		selected:    make(map[int32]selectedItem),
+		reqBox:      util.NewEventBox(),
+		preview:     opts.Preview,
+		previewer:   previewer{"", 0, 0, previewBox != nil && !opts.Preview.hidden, false},
+		previewBox:  previewBox,
+		eventBox:    eventBox,
+		mutex:       sync.Mutex{},
+		suppress:    true,
+		slab:        util.MakeSlab(slab16Size, slab32Size),
+		theme:       opts.Theme,
+		startChan:   make(chan bool, 1),
+		killChan:    make(chan int),
+		tui:         renderer,
+		initFunc:    func() { renderer.Init() }}
+	t.prompt, t.promptLen = t.parsePrompt(opts.Prompt)
+	t.pointer, t.pointerLen = t.processTabs([]rune(opts.Pointer), 0)
+	t.marker, t.markerLen = t.processTabs([]rune(opts.Marker), 0)
+	// Pre-calculated empty pointer and marker signs
+	t.pointerEmpty = strings.Repeat(" ", t.pointerLen)
+	t.markerEmpty = strings.Repeat(" ", t.markerLen)
+
 	return &t
 }
 
+func (t *Terminal) parsePrompt(prompt string) (func(), int) {
+	var state *ansiState
+	trimmed, colors, _ := extractColor(prompt, state, nil)
+	item := &Item{text: util.ToChars([]byte(trimmed)), colors: colors}
+	output := func() {
+		t.printHighlighted(
+			Result{item: item}, t.strong, tui.ColPrompt, tui.ColPrompt, false, false)
+	}
+	_, promptLen := t.processTabs([]rune(trimmed), 0)
+
+	return output, promptLen
+}
+
 func (t *Terminal) noInfoLine() bool {
 	return t.infoStyle != infoDefault
 }
@@ -553,12 +614,12 @@ const (
 	maxDisplayWidthCalc = 1024
 )
 
-func calculateSize(base int, size sizeSpec, margin int, minSize int) int {
-	max := base - margin
+func calculateSize(base int, size sizeSpec, occupied int, minSize int, pad int) int {
+	max := base - occupied
 	if size.percent {
 		return util.Constrain(int(float64(base)*0.01*size.size), minSize, max)
 	}
-	return util.Constrain(int(size.size), minSize, max)
+	return util.Constrain(int(size.size)+pad, minSize, max)
 }
 
 func (t *Terminal) resizeWindows() {
@@ -578,8 +639,11 @@ func (t *Terminal) resizeWindows() {
 		} else {
 			marginInt[idx] = int(sizeSpec.size)
 		}
-		if t.bordered && idx%2 == 0 {
-			marginInt[idx] += 1
+		switch t.borderShape {
+		case tui.BorderHorizontal:
+			marginInt[idx] += 1 - idx%2
+		case tui.BorderRounded, tui.BorderSharp:
+			marginInt[idx] += 1 + idx%2
 		}
 	}
 	adjust := func(idx1 int, idx2 int, max int, min int) {
@@ -614,54 +678,77 @@ func (t *Terminal) resizeWindows() {
 	}
 	if t.pborder != nil {
 		t.pborder.Close()
+	}
+	if t.pwindow != nil {
 		t.pwindow.Close()
 	}
 
 	width := screenWidth - marginInt[1] - marginInt[3]
 	height := screenHeight - marginInt[0] - marginInt[2]
-	if t.bordered {
+	switch t.borderShape {
+	case tui.BorderHorizontal:
 		t.border = t.tui.NewWindow(
 			marginInt[0]-1,
 			marginInt[3],
 			width,
 			height+2,
 			false, tui.MakeBorderStyle(tui.BorderHorizontal, t.unicode))
+	case tui.BorderRounded, tui.BorderSharp:
+		t.border = t.tui.NewWindow(
+			marginInt[0]-1,
+			marginInt[3]-2,
+			width+4,
+			height+2,
+			false, tui.MakeBorderStyle(t.borderShape, t.unicode))
 	}
 	noBorder := tui.MakeBorderStyle(tui.BorderNone, t.unicode)
 	if previewVisible {
 		createPreviewWindow := func(y int, x int, w int, h int) {
-			previewBorder := tui.MakeBorderStyle(tui.BorderAround, t.unicode)
-			if !t.preview.border {
-				previewBorder = tui.MakeTransparentBorder()
+			pwidth := w
+			pheight := h
+			if t.preview.border != tui.BorderNone {
+				previewBorder := tui.MakeBorderStyle(t.preview.border, t.unicode)
+				t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
+				pwidth -= 4
+				pheight -= 2
+				x += 2
+				y += 1
+			} else {
+				previewBorder := tui.MakeTransparentBorder()
+				t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
+				pwidth -= 4
+				x += 2
 			}
-			t.pborder = t.tui.NewWindow(y, x, w, h, true, previewBorder)
-			pwidth := w - 4
 			// ncurses auto-wraps the line when the cursor reaches the right-end of
 			// the window. To prevent unintended line-wraps, we use the width one
 			// column larger than the desired value.
 			if !t.preview.wrap && t.tui.DoesAutoWrap() {
 				pwidth += 1
 			}
-			t.pwindow = t.tui.NewWindow(y+1, x+2, pwidth, h-2, true, noBorder)
+			t.pwindow = t.tui.NewWindow(y, x, pwidth, pheight, true, noBorder)
+		}
+		verticalPad := 2
+		if t.preview.border == tui.BorderNone {
+			verticalPad = 0
 		}
 		switch t.preview.position {
 		case posUp:
-			pheight := calculateSize(height, t.preview.size, minHeight, 3)
+			pheight := calculateSize(height, t.preview.size, minHeight, 3, verticalPad)
 			t.window = t.tui.NewWindow(
 				marginInt[0]+pheight, marginInt[3], width, height-pheight, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3], width, pheight)
 		case posDown:
-			pheight := calculateSize(height, t.preview.size, minHeight, 3)
+			pheight := calculateSize(height, t.preview.size, minHeight, 3, verticalPad)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3], width, height-pheight, false, noBorder)
 			createPreviewWindow(marginInt[0]+height-pheight, marginInt[3], width, pheight)
 		case posLeft:
-			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
+			pwidth := calculateSize(width, t.preview.size, minWidth, 5, 4)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3]+pwidth, width-pwidth, height, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3], pwidth, height)
 		case posRight:
-			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
+			pwidth := calculateSize(width, t.preview.size, minWidth, 5, 4)
 			t.window = t.tui.NewWindow(
 				marginInt[0], marginInt[3], width-pwidth, height, false, noBorder)
 			createPreviewWindow(marginInt[0], marginInt[3]+width-pwidth, pwidth, height)
@@ -730,7 +817,7 @@ func (t *Terminal) placeCursor() {
 
 func (t *Terminal) printPrompt() {
 	t.move(0, 0, true)
-	t.window.CPrint(tui.ColPrompt, t.strong, t.prompt)
+	t.prompt()
 
 	before, after := t.updatePromptOffset()
 	t.window.CPrint(tui.ColNormal, t.strong, string(before))
@@ -744,8 +831,8 @@ func (t *Terminal) printInfo() {
 		t.move(1, 0, true)
 		if t.reading {
 			duration := int64(spinnerDuration)
-			idx := (time.Now().UnixNano() % (duration * int64(len(_spinner)))) / duration
-			t.window.CPrint(tui.ColSpinner, t.strong, _spinner[idx])
+			idx := (time.Now().UnixNano() % (duration * int64(len(t.spinner)))) / duration
+			t.window.CPrint(tui.ColSpinner, t.strong, t.spinner[idx])
 		}
 		t.move(1, 2, false)
 		pos = 2
@@ -791,7 +878,7 @@ func (t *Terminal) printInfo() {
 	maxWidth := t.window.Width() - pos
 	if len(output) > maxWidth {
 		outputRunes, _ := t.trimRight([]rune(output), maxWidth-2)
-		output = string(outputRunes) + ".."
+		output = string(outputRunes) + strings.Repeat(".", util.Constrain(maxWidth, 0, 2))
 	}
 	t.window.CPrint(tui.ColInfo, 0, output)
 }
@@ -848,15 +935,15 @@ func (t *Terminal) printList() {
 func (t *Terminal) printItem(result Result, line int, i int, current bool) {
 	item := result.item
 	_, selected := t.selected[item.Index()]
-	label := " "
+	label := t.pointerEmpty
 	if t.jumping != jumpDisabled {
 		if i < len(t.jumpLabels) {
 			// Striped
 			current = i%2 == 0
-			label = t.jumpLabels[i : i+1]
+			label = t.jumpLabels[i:i+1] + strings.Repeat(" ", t.pointerLen-1)
 		}
 	} else if current {
-		label = ">"
+		label = t.pointer
 	}
 
 	// Avoid unnecessary redraw
@@ -875,17 +962,17 @@ func (t *Terminal) printItem(result Result, line int, i int, current bool) {
 	if current {
 		t.window.CPrint(tui.ColCurrentCursor, t.strong, label)
 		if selected {
-			t.window.CPrint(tui.ColCurrentSelected, t.strong, ">")
+			t.window.CPrint(tui.ColCurrentSelected, t.strong, t.marker)
 		} else {
-			t.window.CPrint(tui.ColCurrentSelected, t.strong, " ")
+			t.window.CPrint(tui.ColCurrentSelected, t.strong, t.markerEmpty)
 		}
 		newLine.width = t.printHighlighted(result, t.strong, tui.ColCurrent, tui.ColCurrentMatch, true, true)
 	} else {
 		t.window.CPrint(tui.ColCursor, t.strong, label)
 		if selected {
-			t.window.CPrint(tui.ColSelected, t.strong, ">")
+			t.window.CPrint(tui.ColSelected, t.strong, t.marker)
 		} else {
-			t.window.Print(" ")
+			t.window.Print(t.markerEmpty)
 		}
 		newLine.width = t.printHighlighted(result, 0, tui.ColNormal, tui.ColMatch, false, true)
 	}
@@ -967,38 +1054,45 @@ func (t *Terminal) printHighlighted(result Result, attr tui.Attr, col1 tui.Color
 	}
 
 	offsets := result.colorOffsets(charOffsets, t.theme, col2, attr, current)
-	maxWidth := t.window.Width() - 3
+	maxWidth := t.window.Width() - (t.pointerLen + t.markerLen + 1)
 	maxe = util.Constrain(maxe+util.Min(maxWidth/2-2, t.hscrollOff), 0, len(text))
 	displayWidth := t.displayWidthWithLimit(text, 0, maxWidth)
 	if displayWidth > maxWidth {
+		transformOffsets := func(diff int32) {
+			for idx, offset := range offsets {
+				b, e := offset.offset[0], offset.offset[1]
+				b += 2 - diff
+				e += 2 - diff
+				b = util.Max32(b, 2)
+				offsets[idx].offset[0] = b
+				offsets[idx].offset[1] = util.Max32(b, e)
+			}
+		}
 		if t.hscroll {
-			// Stri..
-			if !t.overflow(text[:maxe], maxWidth-2) {
+			if t.keepRight && pos == nil {
+				trimmed, diff := t.trimLeft(text, maxWidth-2)
+				transformOffsets(diff)
+				text = append([]rune(ellipsis), trimmed...)
+			} else if !t.overflow(text[:maxe], maxWidth-2) {
+				// Stri..
 				text, _ = t.trimRight(text, maxWidth-2)
-				text = append(text, []rune("..")...)
+				text = append(text, []rune(ellipsis)...)
 			} else {
 				// Stri..
 				if t.overflow(text[maxe:], 2) {
-					text = append(text[:maxe], []rune("..")...)
+					text = append(text[:maxe], []rune(ellipsis)...)
 				}
 				// ..ri..
 				var diff int32
 				text, diff = t.trimLeft(text, maxWidth-2)
 
 				// Transform offsets
-				for idx, offset := range offsets {
-					b, e := offset.offset[0], offset.offset[1]
-					b += 2 - diff
-					e += 2 - diff
-					b = util.Max32(b, 2)
-					offsets[idx].offset[0] = b
-					offsets[idx].offset[1] = util.Max32(b, e)
-				}
-				text = append([]rune(".."), text...)
+				transformOffsets(diff)
+				text = append([]rune(ellipsis), text...)
 			}
 		} else {
 			text, _ = t.trimRight(text, maxWidth-2)
-			text = append(text, []rune("..")...)
+			text = append(text, []rune(ellipsis)...)
 
 			for idx, offset := range offsets {
 				offsets[idx].offset[0] = util.Min32(offset.offset[0], int32(maxWidth-2))
@@ -1129,11 +1223,14 @@ func (t *Terminal) refresh() {
 	t.placeCursor()
 	if !t.suppress {
 		windows := make([]tui.Window, 0, 4)
-		if t.bordered {
+		if t.borderShape != tui.BorderNone {
 			windows = append(windows, t.border)
 		}
 		if t.hasPreviewWindow() {
-			windows = append(windows, t.pborder, t.pwindow)
+			if t.pborder != nil {
+				windows = append(windows, t.pborder)
+			}
+			windows = append(windows, t.pwindow)
 		}
 		windows = append(windows, t.window)
 		t.tui.RefreshWindows(windows)
@@ -1157,7 +1254,8 @@ func findLastMatch(pattern string, str string) int {
 	if locs == nil {
 		return -1
 	}
-	return locs[len(locs)-1][0]
+	prefix := []rune(str[:locs[len(locs)-1][0]])
+	return len(prefix)
 }
 
 func findFirstMatch(pattern string, str string) int {
@@ -1169,7 +1267,8 @@ func findFirstMatch(pattern string, str string) int {
 	if loc == nil {
 		return -1
 	}
-	return loc[0]
+	prefix := []rune(str[:loc[0]])
+	return len(prefix)
 }
 
 func copySlice(slice []rune) []rune {
@@ -1277,6 +1376,50 @@ func cleanTemporaryFiles() {
 	activeTempFiles = []string{}
 }
 
+func (t *Terminal) replacePlaceholder(template string, forcePlus bool, input string, list []*Item) string {
+	return replacePlaceholder(
+		template, t.ansi, t.delimiter, t.printsep, forcePlus, input, list)
+}
+
+// Ascii to positive integer
+func atopi(s string) int {
+	matches := numericPrefix.FindStringSubmatch(s)
+	if len(matches) < 2 {
+		return 0
+	}
+	n, e := strconv.Atoi(matches[1])
+	if e != nil || n < 1 {
+		return 0
+	}
+	return n
+}
+
+func (t *Terminal) evaluateScrollOffset(list []*Item, height int) int {
+	offsetExpr := t.replacePlaceholder(t.preview.scroll, false, "", list)
+	nums := strings.Split(offsetExpr, "-")
+	switch len(nums) {
+	case 0:
+		return 0
+	case 1, 2:
+		base := atopi(nums[0])
+		if base == 0 {
+			return 0
+		} else if len(nums) == 1 {
+			return base - 1
+		}
+		if nums[1][0] == '/' {
+			denom := atopi(nums[1][1:])
+			if denom == 0 {
+				return base
+			}
+			return base - height/denom
+		}
+		return base - atopi(nums[1]) - 1
+	default:
+		return 0
+	}
+}
+
 func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, printsep string, forcePlus bool, query string, allItems []*Item) string {
 	current := allItems[:1]
 	selected := allItems[1:]
@@ -1375,7 +1518,7 @@ func (t *Terminal) executeCommand(template string, forcePlus bool, background bo
 	if !valid {
 		return
 	}
-	command := replacePlaceholder(template, t.ansi, t.delimiter, t.printsep, forcePlus, string(t.input), list)
+	command := t.replacePlaceholder(template, forcePlus, string(t.input), list)
 	cmd := util.ExecCommand(command, false)
 	if !background {
 		cmd.Stdin = os.Stdin
@@ -1383,13 +1526,13 @@ func (t *Terminal) executeCommand(template string, forcePlus bool, background bo
 		cmd.Stderr = os.Stderr
 		t.tui.Pause(true)
 		cmd.Run()
-		t.tui.Resume(true)
+		t.tui.Resume(true, false)
 		t.redraw()
 		t.refresh()
 	} else {
 		t.tui.Pause(false)
 		cmd.Run()
-		t.tui.Resume(false)
+		t.tui.Resume(false, false)
 	}
 	cleanTemporaryFiles()
 }
@@ -1416,8 +1559,8 @@ func (t *Terminal) currentItem() *Item {
 
 func (t *Terminal) buildPlusList(template string, forcePlus bool) (bool, []*Item) {
 	current := t.currentItem()
-	_, plus, query := hasPreviewFlags(template)
-	if !(query && len(t.input) > 0 || (forcePlus || plus) && len(t.selected) > 0) {
+	slot, plus, query := hasPreviewFlags(template)
+	if !(!slot || query && len(t.input) > 0 || (forcePlus || plus) && len(t.selected) > 0) {
 		return current != nil, []*Item{current, current}
 	}
 
@@ -1544,24 +1687,29 @@ func (t *Terminal) Loop() {
 	if t.hasPreviewer() {
 		go func() {
 			for {
-				var request []*Item
+				var items []*Item
+				var commandTemplate string
 				t.previewBox.Wait(func(events *util.Events) {
 					for req, value := range *events {
 						switch req {
 						case reqPreviewEnqueue:
-							request = value.([]*Item)
+							request := value.(previewRequest)
+							commandTemplate = request.template
+							items = request.list
 						}
 					}
 					events.Clear()
 				})
 				// We don't display preview window if no match
-				if request[0] != nil {
-					command := replacePlaceholder(t.preview.command,
-						t.ansi, t.delimiter, t.printsep, false, string(t.Input()), request)
+				if items[0] != nil {
+					command := t.replacePlaceholder(commandTemplate, false, string(t.Input()), items)
+					offset := 0
 					cmd := util.ExecCommand(command, true)
 					if t.pwindow != nil {
+						height := t.pwindow.Height()
+						offset = t.evaluateScrollOffset(items, height)
 						env := os.Environ()
-						lines := fmt.Sprintf("LINES=%d", t.pwindow.Height())
+						lines := fmt.Sprintf("LINES=%d", height)
 						columns := fmt.Sprintf("COLUMNS=%d", t.pwindow.Width())
 						env = append(env, lines)
 						env = append(env, "FZF_PREVIEW_"+lines)
@@ -1572,7 +1720,10 @@ func (t *Terminal) Loop() {
 					var out bytes.Buffer
 					cmd.Stdout = &out
 					cmd.Stderr = &out
-					cmd.Start()
+					err := cmd.Start()
+					if err != nil {
+						out.Write([]byte(err.Error()))
+					}
 					finishChan := make(chan bool, 1)
 					updateChan := make(chan bool)
 					go func() {
@@ -1597,11 +1748,11 @@ func (t *Terminal) Loop() {
 					cmd.Wait()
 					finishChan <- true
 					if out.Len() > 0 || !<-updateChan {
-						t.reqBox.Set(reqPreviewDisplay, out.String())
+						t.reqBox.Set(reqPreviewDisplay, previewResult{out.String(), offset})
 					}
 					cleanTemporaryFiles()
 				} else {
-					t.reqBox.Set(reqPreviewDisplay, "")
+					t.reqBox.Set(reqPreviewDisplay, previewResult{"", 0})
 				}
 			}
 		}()
@@ -1617,6 +1768,14 @@ func (t *Terminal) Loop() {
 		t.killPreview(code)
 	}
 
+	refreshPreview := func(command string) {
+		if len(command) > 0 && t.isPreviewEnabled() {
+			_, list := t.buildPlusList(command, false)
+			t.cancelPreview()
+			t.previewBox.Set(reqPreviewEnqueue, previewRequest{command, list})
+		}
+	}
+
 	go func() {
 		var focusedIndex int32 = minItem.Index()
 		var version int64 = -1
@@ -1643,11 +1802,7 @@ func (t *Terminal) Loop() {
 						if focusedIndex != currentIndex || version != t.version {
 							version = t.version
 							focusedIndex = currentIndex
-							if t.isPreviewEnabled() {
-								_, list := t.buildPlusList(t.preview.command, false)
-								t.cancelPreview()
-								t.previewBox.Set(reqPreviewEnqueue, list)
-							}
+							refreshPreview(t.preview.command)
 						}
 					case reqJump:
 						if t.merger.Length() == 0 {
@@ -1659,7 +1814,7 @@ func (t *Terminal) Loop() {
 					case reqRefresh:
 						t.suppress = false
 					case reqReinit:
-						t.tui.Resume(t.fullscreen)
+						t.tui.Resume(t.fullscreen, true)
 						t.redraw()
 					case reqRedraw:
 						t.redraw()
@@ -1671,9 +1826,10 @@ func (t *Terminal) Loop() {
 							return exitNoMatch
 						})
 					case reqPreviewDisplay:
-						t.previewer.text = value.(string)
+						result := value.(previewResult)
+						t.previewer.text = result.content
 						t.previewer.lines = strings.Count(t.previewer.text, "\n")
-						t.previewer.offset = 0
+						t.previewer.offset = util.Constrain(result.offset, 0, t.previewer.lines-1)
 						t.printPreview()
 					case reqPreviewRefresh:
 						t.printPreview()
@@ -1696,6 +1852,7 @@ func (t *Terminal) Loop() {
 	for looping {
 		var newCommand *string
 		changed := false
+		beof := false
 		queryChanged := false
 
 		event := t.tui.GetChar()
@@ -1712,6 +1869,14 @@ func (t *Terminal) Loop() {
 				}
 			}
 		}
+		togglePreview := func(enabled bool) {
+			if t.previewer.enabled != enabled {
+				t.previewer.enabled = enabled
+				t.tui.Clear()
+				t.resizeWindows()
+				req(reqPrompt, reqList, reqInfo, reqHeader)
+			}
+		}
 		toggle := func() bool {
 			if t.cy < t.merger.Length() && t.toggleItem(t.merger.Get(t.cy).item) {
 				req(reqInfo)
@@ -1723,8 +1888,11 @@ func (t *Terminal) Loop() {
 			if !t.previewer.more {
 				return
 			}
-			newOffset := util.Constrain(
-				t.previewer.offset+amount, 0, t.previewer.lines-1)
+			newOffset := t.previewer.offset + amount
+			if t.preview.cycle {
+				newOffset = (newOffset + t.previewer.lines) % t.previewer.lines
+			}
+			newOffset = util.Constrain(newOffset, 0, t.previewer.lines-1)
 			if t.previewer.offset != newOffset {
 				t.previewer.offset = newOffset
 				req(reqPreviewRefresh)
@@ -1760,17 +1928,15 @@ func (t *Terminal) Loop() {
 				return false
 			case actTogglePreview:
 				if t.hasPreviewer() {
-					t.previewer.enabled = !t.previewer.enabled
-					t.tui.Clear()
-					t.resizeWindows()
+					togglePreview(!t.previewer.enabled)
 					if t.previewer.enabled {
 						valid, list := t.buildPlusList(t.preview.command, false)
 						if valid {
 							t.cancelPreview()
-							t.previewBox.Set(reqPreviewEnqueue, list)
+							t.previewBox.Set(reqPreviewEnqueue,
+								previewRequest{t.preview.command, list})
 						}
 					}
-					req(reqPrompt, reqList, reqInfo, reqHeader)
 				}
 			case actTogglePreviewWrap:
 				if t.hasPreviewWindow() {
@@ -1796,6 +1962,14 @@ func (t *Terminal) Loop() {
 				if t.hasPreviewWindow() {
 					scrollPreview(t.pwindow.Height())
 				}
+			case actPreviewHalfPageUp:
+				if t.hasPreviewWindow() {
+					scrollPreview(-t.pwindow.Height() / 2)
+				}
+			case actPreviewHalfPageDown:
+				if t.hasPreviewWindow() {
+					scrollPreview(t.pwindow.Height() / 2)
+				}
 			case actBeginningOfLine:
 				t.cx = 0
 			case actBackwardChar:
@@ -1804,6 +1978,11 @@ func (t *Terminal) Loop() {
 				}
 			case actPrintQuery:
 				req(reqPrintQuery)
+			case actPreview:
+				togglePreview(true)
+				refreshPreview(a.a)
+			case actRefreshPreview:
+				refreshPreview(t.preview.command)
 			case actReplaceQuery:
 				if t.cy >= 0 && t.cy < t.merger.Length() {
 					t.input = t.merger.Get(t.cy).item.text.ToRunes()
@@ -1827,11 +2006,19 @@ func (t *Terminal) Loop() {
 					t.input = []rune{}
 					t.cx = 0
 				}
+			case actBackwardDeleteCharEOF:
+				if len(t.input) == 0 {
+					req(reqQuit)
+				} else if t.cx > 0 {
+					t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
+					t.cx--
+				}
 			case actForwardChar:
 				if t.cx < len(t.input) {
 					t.cx++
 				}
 			case actBackwardDeleteChar:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
 					t.cx--
@@ -1924,16 +2111,19 @@ func (t *Terminal) Loop() {
 				t.vset(0)
 				req(reqList)
 			case actUnixLineDiscard:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.yanked = copySlice(t.input[:t.cx])
 					t.input = t.input[t.cx:]
 					t.cx = 0
 				}
 			case actUnixWordRubout:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.rubout("\\s\\S")
 				}
 			case actBackwardKillWord:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.rubout(t.wordRubout)
 				}
@@ -2069,8 +2259,7 @@ func (t *Terminal) Loop() {
 					valid = !slot || query
 				}
 				if valid {
-					command := replacePlaceholder(a.a,
-						t.ansi, t.delimiter, t.printsep, false, string(t.input), list)
+					command := t.replacePlaceholder(a.a, false, string(t.input), list)
 					newCommand = &command
 				}
 			}
@@ -2096,6 +2285,11 @@ func (t *Terminal) Loop() {
 					continue
 				}
 			}
+			if onEOFs, prs := t.keymap[tui.BackwardEOF]; beof && prs {
+				if !doActions(onEOFs, tui.BackwardEOF) {
+					continue
+				}
+			}
 		} else {
 			if mapkey == tui.Rune {
 				if idx := strings.IndexRune(t.jumpLabels, event.Char); idx >= 0 && idx < t.maxItems() && idx < t.merger.Length() {

src/tui/dummy.go

@@ -25,12 +25,12 @@ const (
 	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) Init()             {}
+func (r *FullscreenRenderer) Pause(bool)        {}
+func (r *FullscreenRenderer) Resume(bool, 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{} }

src/tui/light.go

@@ -3,11 +3,9 @@ package tui
 import (
 	"fmt"
 	"os"
-	"os/exec"
 	"regexp"
 	"strconv"
 	"strings"
-	"syscall"
 	"time"
 	"unicode/utf8"
 
@@ -23,26 +21,13 @@ const (
 	defaultEscDelay = 100
 	escPollInterval = 5
 	offsetPollTries = 10
+	maxInputBuffer  = 10 * 1024
 )
 
 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
-}
+var offsetRegexpBegin *regexp.Regexp = regexp.MustCompile("^\x1b\\[[0-9]+;[0-9]+R")
 
 func (r *LightRenderer) stderr(str string) {
 	r.stderrInternal(str, true)
@@ -100,11 +85,19 @@ type LightRenderer struct {
 	y             int
 	x             int
 	maxHeightFunc func(int) int
+
+	// Windows only
+	ttyinChannel    chan byte
+	inHandle        uintptr
+	outHandle       uintptr
+	origStateInput  uint32
+	origStateOutput uint32
 }
 
 type LightWindow struct {
 	renderer *LightRenderer
 	colored  bool
+	preview  bool
 	border   BorderStyle
 	top      int
 	left     int
@@ -132,37 +125,6 @@ func NewLightRenderer(theme *ColorTheme, forceBlack bool, mouse bool, tabstop in
 	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)
@@ -181,13 +143,9 @@ func atoi(s string, defaultValue int) int {
 func (r *LightRenderer) Init() {
 	r.escDelay = atoi(os.Getenv("ESCDELAY"), defaultEscDelay)
 
-	fd := r.fd()
-	origState, err := terminal.GetState(fd)
-	if err != nil {
+	if err := r.initPlatform(); err != nil {
 		errorExit(err.Error())
 	}
-	r.origState = origState
-	terminal.MakeRaw(fd)
 	r.updateTerminalSize()
 	initTheme(r.theme, r.defaultTheme(), r.forceBlack)
 
@@ -260,28 +218,6 @@ func getEnv(name string, defaultValue int) int {
 	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)
 }
@@ -316,6 +252,13 @@ func (r *LightRenderer) getBytesInternal(buffer []byte, nonblock bool) []byte {
 		}
 		buffer = append(buffer, byte(c))
 		pc = c
+
+		// This should never happen under normal conditions,
+		// so terminate fzf immediately.
+		if len(buffer) > maxInputBuffer {
+			r.Close()
+			panic(fmt.Sprintf("Input buffer overflow (%d): %v", len(buffer), buffer))
+		}
 	}
 
 	return buffer
@@ -379,6 +322,13 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	if len(r.buffer) < 2 {
 		return Event{ESC, 0, nil}
 	}
+
+	loc := offsetRegexpBegin.FindIndex(r.buffer)
+	if loc != nil && loc[0] == 0 {
+		*sz = loc[1]
+		return Event{Invalid, 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}
@@ -391,112 +341,123 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	switch r.buffer[1] {
 	case ESC:
 		return Event{ESC, 0, nil}
-	case 32:
+	case ' ':
 		return Event{AltSpace, 0, nil}
-	case 47:
+	case '/':
 		return Event{AltSlash, 0, nil}
-	case 98:
+	case 'b':
 		return Event{AltB, 0, nil}
-	case 100:
+	case 'd':
 		return Event{AltD, 0, nil}
-	case 102:
+	case 'f':
 		return Event{AltF, 0, nil}
 	case 127:
 		return Event{AltBS, 0, nil}
-	case 91, 79:
+	case '[', 'O':
 		if len(r.buffer) < 3 {
 			return Event{Invalid, 0, nil}
 		}
 		*sz = 3
 		switch r.buffer[2] {
-		case 68:
+		case 'D':
 			if alt {
 				return Event{AltLeft, 0, nil}
 			}
 			return Event{Left, 0, nil}
-		case 67:
+		case 'C':
 			if alt {
 				// Ugh..
 				return Event{AltRight, 0, nil}
 			}
 			return Event{Right, 0, nil}
-		case 66:
+		case 'B':
 			if alt {
 				return Event{AltDown, 0, nil}
 			}
 			return Event{Down, 0, nil}
-		case 65:
+		case 'A':
 			if alt {
 				return Event{AltUp, 0, nil}
 			}
 			return Event{Up, 0, nil}
-		case 90:
+		case 'Z':
 			return Event{BTab, 0, nil}
-		case 72:
+		case 'H':
 			return Event{Home, 0, nil}
-		case 70:
+		case 'F':
 			return Event{End, 0, nil}
-		case 77:
+		case 'M':
 			return r.mouseSequence(sz)
-		case 80:
+		case 'P':
 			return Event{F1, 0, nil}
-		case 81:
+		case 'Q':
 			return Event{F2, 0, nil}
-		case 82:
+		case 'R':
 			return Event{F3, 0, nil}
-		case 83:
+		case 'S':
 			return Event{F4, 0, nil}
-		case 49, 50, 51, 52, 53, 54:
+		case '1', '2', '3', '4', '5', '6':
 			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 {
+			case '2':
+				if r.buffer[3] == '~' {
+					return Event{Insert, 0, nil}
+				}
+				if len(r.buffer) > 4 && r.buffer[4] == '~' {
 					*sz = 5
 					switch r.buffer[3] {
-					case 48:
+					case '0':
 						return Event{F9, 0, nil}
-					case 49:
+					case '1':
 						return Event{F10, 0, nil}
-					case 51:
+					case '3':
 						return Event{F11, 0, nil}
-					case 52:
+					case '4':
 						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] == '~' {
+				if len(r.buffer) > 5 && 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:
+			case '3':
 				return Event{Del, 0, nil}
-			case 52:
+			case '4':
 				return Event{End, 0, nil}
-			case 53:
+			case '5':
 				return Event{PgUp, 0, nil}
-			case 54:
+			case '6':
 				return Event{PgDn, 0, nil}
-			case 49:
+			case '1':
 				switch r.buffer[3] {
-				case 126:
+				case '~':
 					return Event{Home, 0, nil}
-				case 53, 55, 56, 57:
-					if len(r.buffer) == 5 && r.buffer[4] == 126 {
+				case '1', '2', '3', '4', '5', '7', '8', '9':
+					if len(r.buffer) == 5 && r.buffer[4] == '~' {
 						*sz = 5
 						switch r.buffer[3] {
-						case 53:
+						case '1':
+							return Event{F1, 0, nil}
+						case '2':
+							return Event{F2, 0, nil}
+						case '3':
+							return Event{F3, 0, nil}
+						case '4':
+							return Event{F4, 0, nil}
+						case '5':
 							return Event{F5, 0, nil}
-						case 55:
+						case '7':
 							return Event{F6, 0, nil}
-						case 56:
+						case '8':
 							return Event{F7, 0, nil}
-						case 57:
+						case '9':
 							return Event{F8, 0, nil}
 						}
 					}
@@ -584,7 +545,7 @@ func (r *LightRenderer) rmcup() {
 }
 
 func (r *LightRenderer) Pause(clear bool) {
-	terminal.Restore(r.fd(), r.origState)
+	r.restoreTerminal()
 	if clear {
 		if r.fullscreen {
 			r.rmcup()
@@ -596,8 +557,8 @@ func (r *LightRenderer) Pause(clear bool) {
 	}
 }
 
-func (r *LightRenderer) Resume(clear bool) {
-	terminal.MakeRaw(r.fd())
+func (r *LightRenderer) Resume(clear bool, sigcont bool) {
+	r.setupTerminal()
 	if clear {
 		if r.fullscreen {
 			r.smcup()
@@ -605,10 +566,10 @@ func (r *LightRenderer) Resume(clear bool) {
 			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.
+	} else if sigcont && !r.fullscreen && r.mouse {
+		// NOTE: SIGCONT (Coming back from CTRL-Z):
+		// It's highly likely that the offset we obtained at the beginning is
+		// no longer correct, so we simply disable mouse input.
 		r.csi("?1000l")
 		r.mouse = false
 	}
@@ -651,7 +612,8 @@ func (r *LightRenderer) Close() {
 		r.csi("?1000l")
 	}
 	r.flush()
-	terminal.Restore(r.fd(), r.origState)
+	r.closePlatform()
+	r.restoreTerminal()
 }
 
 func (r *LightRenderer) MaxX() int {
@@ -670,6 +632,7 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, prev
 	w := &LightWindow{
 		renderer: r,
 		colored:  r.theme != nil,
+		preview:  preview,
 		border:   borderStyle,
 		top:      top,
 		left:     left,
@@ -693,7 +656,7 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, prev
 
 func (w *LightWindow) drawBorder() {
 	switch w.border.shape {
-	case BorderAround:
+	case BorderRounded, BorderSharp:
 		w.drawBorderAround()
 	case BorderHorizontal:
 		w.drawBorderHorizontal()
@@ -709,16 +672,20 @@ func (w *LightWindow) drawBorderHorizontal() {
 
 func (w *LightWindow) drawBorderAround() {
 	w.Move(0, 0)
-	w.CPrint(ColPreviewBorder, AttrRegular,
+	color := ColBorder
+	if w.preview {
+		color = ColPreviewBorder
+	}
+	w.CPrint(color, 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.CPrint(color, AttrRegular, string(w.border.vertical))
+		w.CPrint(color, AttrRegular, repeat(' ', w.width-2))
+		w.CPrint(color, AttrRegular, string(w.border.vertical))
 	}
 	w.Move(w.height-1, 0)
-	w.CPrint(ColPreviewBorder, AttrRegular,
+	w.CPrint(color, AttrRegular,
 		string(w.border.bottomLeft)+repeat(w.border.horizontal, w.width-2)+string(w.border.bottomRight))
 }
 

src/tui/light_unix.go

@@ -0,0 +1,110 @@
+// +build !windows
+
+package tui
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"syscall"
+
+	"github.com/junegunn/fzf/src/util"
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+func IsLightRendererSupported() bool {
+	return true
+}
+
+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) fd() int {
+	return int(r.ttyin.Fd())
+}
+
+func (r *LightRenderer) initPlatform() error {
+	fd := r.fd()
+	origState, err := terminal.GetState(fd)
+	if err != nil {
+		return err
+	}
+	r.origState = origState
+	terminal.MakeRaw(fd)
+	return nil
+}
+
+func (r *LightRenderer) closePlatform() {
+	// NOOP
+}
+
+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) setupTerminal() {
+	terminal.MakeRaw(r.fd())
+}
+
+func (r *LightRenderer) restoreTerminal() {
+	terminal.Restore(r.fd(), r.origState)
+}
+
+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) 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 (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
+}

src/tui/light_windows.go

@@ -0,0 +1,140 @@
+//+build windows
+
+package tui
+
+import (
+	"os"
+	"syscall"
+
+	"github.com/junegunn/fzf/src/util"
+	"golang.org/x/sys/windows"
+)
+
+var (
+	consoleFlagsInput  = uint32(windows.ENABLE_VIRTUAL_TERMINAL_INPUT | windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_EXTENDED_FLAGS)
+	consoleFlagsOutput = uint32(windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING | windows.ENABLE_PROCESSED_OUTPUT | windows.DISABLE_NEWLINE_AUTO_RETURN)
+)
+
+// IsLightRendererSupported checks to see if the Light renderer is supported
+func IsLightRendererSupported() bool {
+	var oldState uint32
+	// enable vt100 emulation (https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences)
+	if windows.GetConsoleMode(windows.Stderr, &oldState) != nil {
+		return false
+	}
+	// attempt to set mode to determine if we support VT 100 codes. This will work on newer Windows 10
+	// version:
+	canSetVt100 := windows.SetConsoleMode(windows.Stderr, oldState|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) == nil
+	var checkState uint32
+	if windows.GetConsoleMode(windows.Stderr, &checkState) != nil ||
+		(checkState&windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) != windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING {
+		return false
+	}
+	windows.SetConsoleMode(windows.Stderr, oldState)
+	return canSetVt100
+}
+
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	// the getenv check is borrowed from here: https://github.com/gdamore/tcell/commit/0c473b86d82f68226a142e96cc5a34c5a29b3690#diff-b008fcd5e6934bf31bc3d33bf49f47d8R178:
+	if !IsLightRendererSupported() || os.Getenv("ConEmuPID") != "" || os.Getenv("TCELL_TRUECOLOR") == "disable" {
+		return Default16
+	}
+	return Dark256
+}
+
+func (r *LightRenderer) initPlatform() error {
+	//outHandle := windows.Stdout
+	outHandle, _ := syscall.Open("CONOUT$", syscall.O_RDWR, 0)
+	// enable vt100 emulation (https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences)
+	if err := windows.GetConsoleMode(windows.Handle(outHandle), &r.origStateOutput); err != nil {
+		return err
+	}
+	r.outHandle = uintptr(outHandle)
+	inHandle, _ := syscall.Open("CONIN$", syscall.O_RDWR, 0)
+	if err := windows.GetConsoleMode(windows.Handle(inHandle), &r.origStateInput); err != nil {
+		return err
+	}
+	r.inHandle = uintptr(inHandle)
+
+	r.setupTerminal()
+
+	// channel for non-blocking reads. Buffer to make sure
+	// we get the ESC sets:
+	r.ttyinChannel = make(chan byte, 12)
+
+	// the following allows for non-blocking IO.
+	// syscall.SetNonblock() is a NOOP under Windows.
+	go func() {
+		fd := int(r.inHandle)
+		b := make([]byte, 1)
+		for {
+			// HACK: if run from PSReadline, something resets ConsoleMode to remove ENABLE_VIRTUAL_TERMINAL_INPUT.
+			_ = windows.SetConsoleMode(windows.Handle(r.inHandle), consoleFlagsInput)
+
+			_, err := util.Read(fd, b)
+			if err == nil {
+				r.ttyinChannel <- b[0]
+			}
+		}
+	}()
+
+	return nil
+}
+
+func (r *LightRenderer) closePlatform() {
+	windows.SetConsoleMode(windows.Handle(r.outHandle), r.origStateOutput)
+	windows.SetConsoleMode(windows.Handle(r.inHandle), r.origStateInput)
+}
+
+func openTtyIn() *os.File {
+	// not used
+	return nil
+}
+
+func (r *LightRenderer) setupTerminal() error {
+	if err := windows.SetConsoleMode(windows.Handle(r.outHandle), consoleFlagsOutput); err != nil {
+		return err
+	}
+	return windows.SetConsoleMode(windows.Handle(r.inHandle), consoleFlagsInput)
+}
+
+func (r *LightRenderer) restoreTerminal() error {
+	if err := windows.SetConsoleMode(windows.Handle(r.inHandle), r.origStateInput); err != nil {
+		return err
+	}
+	return windows.SetConsoleMode(windows.Handle(r.outHandle), r.origStateOutput)
+}
+
+func (r *LightRenderer) updateTerminalSize() {
+	var bufferInfo windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(r.outHandle), &bufferInfo); err != nil {
+		r.width = getEnv("COLUMNS", defaultWidth)
+		r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight))
+
+	} else {
+		r.width = int(bufferInfo.Window.Right - bufferInfo.Window.Left)
+		r.height = r.maxHeightFunc(int(bufferInfo.Window.Bottom - bufferInfo.Window.Top))
+	}
+}
+
+func (r *LightRenderer) findOffset() (row int, col int) {
+	var bufferInfo windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(r.outHandle), &bufferInfo); err != nil {
+		return -1, -1
+	}
+	return int(bufferInfo.CursorPosition.X), int(bufferInfo.CursorPosition.Y)
+}
+
+func (r *LightRenderer) getch(nonblock bool) (int, bool) {
+	if nonblock {
+		select {
+		case bc := <-r.ttyinChannel:
+			return int(bc), true
+		default:
+			return 0, false
+		}
+	} else {
+		bc := <-r.ttyinChannel
+		return int(bc), true
+	}
+}

src/tui/tcell.go

@@ -28,6 +28,7 @@ type Attr tcell.Style
 
 type TcellWindow struct {
 	color       bool
+	preview     bool
 	top         int
 	left        int
 	width       int
@@ -318,6 +319,8 @@ func (r *FullscreenRenderer) GetChar() Event {
 			}
 			return Event{Right, 0, nil}
 
+		case tcell.KeyInsert:
+			return Event{Insert, 0, nil}
 		case tcell.KeyHome:
 			return Event{Home, 0, nil}
 		case tcell.KeyDelete:
@@ -391,7 +394,7 @@ func (r *FullscreenRenderer) Pause(clear bool) {
 	}
 }
 
-func (r *FullscreenRenderer) Resume(clear bool) {
+func (r *FullscreenRenderer) Resume(clear bool, sigcont bool) {
 	if clear {
 		r.initScreen()
 	}
@@ -416,6 +419,7 @@ func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int,
 	}
 	return &TcellWindow{
 		color:       r.theme != nil,
+		preview:     preview,
 		top:         top,
 		left:        left,
 		width:       width,
@@ -589,7 +593,7 @@ func (w *TcellWindow) drawBorder() {
 
 	var style tcell.Style
 	if w.color {
-		if w.borderStyle.shape == BorderAround {
+		if w.preview {
 			style = ColPreviewBorder.style()
 		} else {
 			style = ColBorder.style()
@@ -603,7 +607,7 @@ func (w *TcellWindow) drawBorder() {
 		_screen.SetContent(x, bot-1, w.borderStyle.horizontal, nil, style)
 	}
 
-	if w.borderStyle.shape == BorderAround {
+	if w.borderStyle.shape != BorderHorizontal {
 		for y := top; y < bot; y++ {
 			_screen.SetContent(left, y, w.borderStyle.vertical, nil, style)
 			_screen.SetContent(right-1, y, w.borderStyle.vertical, nil, style)

src/tui/tui.go

@@ -66,6 +66,7 @@ const (
 	Right
 	Home
 	End
+	Insert
 
 	SUp
 	SDown
@@ -86,6 +87,7 @@ const (
 	F12
 
 	Change
+	BackwardEOF
 
 	AltSpace
 	AltSlash
@@ -209,7 +211,8 @@ type BorderShape int
 
 const (
 	BorderNone BorderShape = iota
-	BorderAround
+	BorderRounded
+	BorderSharp
 	BorderHorizontal
 )
 
@@ -227,6 +230,17 @@ type BorderCharacter int
 
 func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 	if unicode {
+		if shape == BorderRounded {
+			return BorderStyle{
+				shape:       shape,
+				horizontal:  '─',
+				vertical:    '│',
+				topLeft:     '╭',
+				topRight:    '╮',
+				bottomLeft:  '╰',
+				bottomRight: '╯',
+			}
+		}
 		return BorderStyle{
 			shape:       shape,
 			horizontal:  '─',
@@ -250,7 +264,7 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 
 func MakeTransparentBorder() BorderStyle {
 	return BorderStyle{
-		shape:       BorderAround,
+		shape:       BorderRounded,
 		horizontal:  ' ',
 		vertical:    ' ',
 		topLeft:     ' ',
@@ -262,7 +276,7 @@ func MakeTransparentBorder() BorderStyle {
 type Renderer interface {
 	Init()
 	Pause(clear bool)
-	Resume(clear bool)
+	Resume(clear bool, sigcont bool)
 	Clear()
 	RefreshWindows(windows []Window)
 	Refresh()

src/update_assets.rb

@@ -1,19 +1,20 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 # http://www.rubydoc.info/github/rest-client/rest-client/RestClient
 require 'rest_client'
 require 'json'
 
 if ARGV.length < 3
-  puts "usage: #$0 <token> <version> <files...>"
+  puts "usage: #{$PROGRAM_NAME} <token> <version> <files...>"
   exit 1
 end
 
 token, version, *files = ARGV
-base = "https://api.github.com/repos/junegunn/fzf-bin/releases"
+base = 'https://api.github.com/repos/junegunn/fzf-bin/releases'
 
 # List releases
-rels = JSON.parse(RestClient.get(base, :authorization => "token #{token}"))
+rels = JSON.parse(RestClient.get(base, authorization: "token #{token}"))
 rel = rels.find { |r| r['tag_name'] == version }
 unless rel
   puts "#{version} not found"
@@ -21,25 +22,26 @@ unless rel
 end
 
 # List assets
-assets = Hash[rel['assets'].map { |a| a.values_at *%w[name id] }]
+assets = Hash[rel['assets'].map { |a| a.values_at('name', 'id') }]
 
-files.select { |f| File.exists? f }.map do |file|
+files.select { |f| File.exist?(f) }.map do |file|
   Thread.new do
-    name = File.basename file
+    name = File.basename(file)
 
-    if asset_id = assets[name]
+    if asset_id = assets[name] # rubocop:todo Lint/AssignmentInCondition
       puts "#{name} found. Deleting asset id #{asset_id}."
-      RestClient.delete "#{base}/assets/#{asset_id}",
-        :authorization => "token #{token}"
+      RestClient.delete("#{base}/assets/#{asset_id}",
+                        authorization: "token #{token}")
     else
       puts "#{name} not found"
     end
 
     puts "Uploading #{name}"
     RestClient.post(
-      "#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
+      "#{base.sub('api', 'uploads')}/#{rel['id']}/assets?name=#{name}",
       File.read(file),
-      :authorization => "token #{token}",
-      :content_type  => "application/octet-stream")
+      authorization: "token #{token}",
+      content_type: 'application/octet-stream'
+    )
   end
 end.each(&:join)

src/util/atomicbool.go

@@ -1,32 +1,34 @@
 package util
 
-import "sync"
+import (
+	"sync/atomic"
+)
+
+func convertBoolToInt32(b bool) int32 {
+	if b {
+		return 1
+	}
+	return 0
+}
 
 // AtomicBool is a boxed-class that provides synchronized access to the
 // underlying boolean value
 type AtomicBool struct {
-	mutex sync.Mutex
-	state bool
+	state int32 // "1" is true, "0" is false
 }
 
 // NewAtomicBool returns a new AtomicBool
 func NewAtomicBool(initialState bool) *AtomicBool {
-	return &AtomicBool{
-		mutex: sync.Mutex{},
-		state: initialState}
+	return &AtomicBool{state: convertBoolToInt32(initialState)}
 }
 
 // Get returns the current boolean value synchronously
 func (a *AtomicBool) Get() bool {
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	return a.state
+	return atomic.LoadInt32(&a.state) == 1
 }
 
 // Set updates the boolean value synchronously
 func (a *AtomicBool) Set(newState bool) bool {
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	a.state = newState
-	return a.state
+	atomic.StoreInt32(&a.state, convertBoolToInt32(newState))
+	return newState
 }

src/util/chars.go

@@ -130,6 +130,18 @@ func (chars *Chars) TrimLength() uint16 {
 	return chars.trimLength
 }
 
+func (chars *Chars) LeadingWhitespaces() int {
+	whitespaces := 0
+	for i := 0; i < chars.Length(); i++ {
+		char := chars.Get(i)
+		if !unicode.IsSpace(char) {
+			break
+		}
+		whitespaces++
+	}
+	return whitespaces
+}
+
 func (chars *Chars) TrailingWhitespaces() int {
 	whitespaces := 0
 	for i := chars.Length() - 1; i >= 0; i-- {