0.10.2

> time cat /tmp/list | fzf-0.10.1-darwin_amd64 --ansi -fqwerty > /dev/null

    real    0m4.364s
    user    0m8.231s
    sys     0m0.820s

    > time cat /tmp/list | fzf --ansi -fqwerty > /dev/null

    real    0m4.624s
    user    0m5.755s
    sys     0m0.732s

.travis.yml

@@ -12,17 +12,13 @@ install:
 - sudo apt-get install -y zsh fish
 
 script: |
-  export GOROOT=~/go1.4
   export GOPATH=~/go
-  export FZF_BASE=~/go/src/github.com/junegunn/fzf
+  export FZF_BASE=$GOPATH/src/github.com/junegunn/fzf
 
-  mkdir -p ~/go/src/github.com/junegunn
+  mkdir -p $GOPATH/src/github.com/junegunn
   ln -s $(pwd) $FZF_BASE
 
-  curl https://storage.googleapis.com/golang/go1.4.1.linux-amd64.tar.gz | tar -xz
-  mv go $GOROOT
-
   cd $FZF_BASE/src && make test fzf/fzf-linux_amd64 install &&
   cd $FZF_BASE/bin && ln -sf fzf-linux_amd64 fzf-$(./fzf --version)-linux_amd64 &&
-  cd $FZF_BASE && yes | ./install &&
-  tmux new "rake test > out && touch ok" && cat out && [ -e ok ]
+  cd $FZF_BASE && yes | ./install && rm -f fzf &&
+  tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]

CHANGELOG.md

@@ -1,6 +1,217 @@
 CHANGELOG
 =========
 
+0.10.2
+------
+
+### Fixes and improvements
+
+- Improvement in perceived response time of queries
+    - Eager, efficient rune array conversion
+- Graceful exit when failed to initialize ncurses (invalid $TERM)
+- Improved ranking algorithm when `--nth` option is set
+- Changed the default command not to fail when there are files whose names
+  start with dash
+
+0.10.1
+------
+
+### New features
+
+- Added `--margin` option
+- Added options for sticky header
+    - `--header-file`
+    - `--header-lines`
+- Added `cancel` action which clears the input or closes the finder when the
+  input is already empty
+    - e.g. `export FZF_DEFAULT_OPTS="--bind esc:cancel"`
+- Added `delete-char/eof` action to differentiate `CTRL-D` and `DEL`
+
+### Minor improvements/fixes
+
+- Fixed to allow binding colon and comma keys
+- Fixed ANSI processor to handle color regions spanning multiple lines
+
+0.10.0
+------
+
+### New features
+
+- More actions for `--bind`
+    - `select-all`
+    - `deselect-all`
+    - `toggle-all`
+    - `ignore`
+- `execute(...)` action for running arbitrary command without leaving fzf
+    - `fzf --bind "ctrl-m:execute(less {})"`
+    - `fzf --bind "ctrl-t:execute(tmux new-window -d 'vim {}')"`
+    - If the command contains parentheses, use any of the follows alternative
+      notations to avoid parse errors
+        - `execute[...]`
+        - `execute~...~`
+        - `execute!...!`
+        - `execute@...@`
+        - `execute#...#`
+        - `execute$...$`
+        - `execute%...%`
+        - `execute^...^`
+        - `execute&...&`
+        - `execute*...*`
+        - `execute;...;`
+        - `execute/.../`
+        - `execute|...|`
+        - `execute:...`
+            - This is the special form that frees you from parse errors as it
+              does not expect the closing character
+            - The catch is that it should be the last one in the
+              comma-separated list
+- Added support for optional search history
+    - `--history HISTORY_FILE`
+        - When used, `CTRL-N` and `CTRL-P` are automatically remapped to
+          `next-history` and `previous-history`
+    - `--history-size MAX_ENTRIES` (default: 1000)
+- Cyclic scrolling can be enabled with `--cycle`
+- Fixed the bug where the spinner was not spinning on idle input stream
+    - e.g. `sleep 100 | fzf`
+
+### Minor improvements/fixes
+
+- Added synonyms for key names that can be specified for `--bind`,
+  `--toggle-sort`, and `--expect`
+- Fixed the color of multi-select marker on the current line
+- Fixed to allow `^pattern$` in extended-search mode
+
+
+0.9.13
+------
+
+### New features
+
+- Color customization with the extended `--color` option
+
+### Bug fixes
+
+- Fixed premature termination of Reader in the presence of a long line which
+  is longer than 64KB
+
+0.9.12
+------
+
+### New features
+
+- Added `--bind` option for custom key bindings
+
+### Bug fixes
+
+- Fixed to update "inline-info" immediately after terminal resize
+- Fixed ANSI code offset calculation
+
+0.9.11
+------
+
+### New features
+
+- Added `--inline-info` option for saving screen estate (#202)
+     - Useful inside Neovim
+     - e.g. `let $FZF_DEFAULT_OPTS = $FZF_DEFAULT_OPTS.' --inline-info'`
+
+### Bug fixes
+
+- Invalid mutation of input on case conversion (#209)
+- Smart-case for each term in extended-search mode (#208)
+- Fixed double-click result when scroll offset is positive
+
+0.9.10
+------
+
+### Improvements
+
+- Performance optimization
+- Less aggressive memoization to limit memory usage
+
+### New features
+
+- Added color scheme for light background: `--color=light`
+
+0.9.9
+-----
+
+### New features
+
+- Added `--tiebreak` option (#191)
+- Added `--no-hscroll` option (#193)
+- Visual indication of `--toggle-sort` (#194)
+
+0.9.8
+-----
+
+### Bug fixes
+
+- Fixed Unicode case handling (#186)
+- Fixed to terminate on RuneError (#185)
+
+0.9.7
+-----
+
+### New features
+
+- Added `--toggle-sort` option (#173)
+    - `--toggle-sort=ctrl-r` is applied to `CTRL-R` shell extension
+
+### Bug fixes
+
+- Fixed to print empty line if `--expect` is set and fzf is completed by
+  `--select-1` or `--exit-0` (#172)
+- Fixed to allow comma character as an argument to `--expect` option
+
+0.9.6
+-----
+
+### New features
+
+#### Added `--expect` option (#163)
+
+If you provide a comma-separated list of keys with `--expect` option, fzf will
+allow you to select the match and complete the finder when any of the keys is
+pressed. Additionally, fzf will print the name of the key pressed as the first
+line of the output so that your script can decide what to do next based on the
+information.
+
+```sh
+fzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@
+```
+
+The updated vim plugin uses this option to implement
+[ctrlp](https://github.com/kien/ctrlp.vim)-compatible key bindings.
+
+### Bug fixes
+
+- Fixed to ignore ANSI escape code `\e[K` (#162)
+
+0.9.5
+-----
+
+### New features
+
+#### Added `--ansi` option (#150)
+
+If you give `--ansi` option to fzf, fzf will interpret ANSI color codes from
+the input, display the item with the ANSI colors (true colors are not
+supported), and strips the codes from the output. This option is off by
+default as it entails some overhead.
+
+### Improvements
+
+#### Reduced initial memory footprint (#151)
+
+By removing unnecessary copy of pointers, fzf will use significantly smaller
+amount of memory when it's started. The difference is hugely noticeable when
+the input is extremely large. (e.g. `locate / | fzf`)
+
+### Bug fixes
+
+- Fixed panic on `--no-sort --filter ''` (#149)
+
 0.9.4
 -----
 

README.md

@@ -1,12 +1,22 @@
-fzf - Fuzzy finder for your shell
-=================================
+<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf) <a href="http://flattr.com/thing/3115381/junegunnfzf-on-GitHub" target="_blank"><img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0" /></a>
+===
 
-fzf is a general-purpose fuzzy finder for your shell.
+fzf is a general-purpose command-line fuzzy finder.
 
 ![](https://raw.github.com/junegunn/i/master/fzf.gif)
 
-It was heavily inspired by [ctrlp.vim](https://github.com/kien/ctrlp.vim) and
-the likes.
+Pros
+----
+
+- No dependencies
+- Blazingly fast
+    - e.g. `locate / | fzf`
+- Flexible layout
+    - Runs in fullscreen or in horizontal/vertical split using tmux
+- The most comprehensive feature set
+    - Try `fzf --help` and be surprised
+- Batteries included
+    - Vim/Neovim plugin, key bindings and fuzzy auto-completion
 
 Installation
 ------------
@@ -14,48 +24,39 @@ Installation
 fzf project consists of the followings:
 
 - `fzf` executable
+- `fzf-tmux` script for launching fzf in a tmux pane
 - Shell extensions
     - Key bindings (`CTRL-T`, `CTRL-R`, and `ALT-C`) (bash, zsh, fish)
-    - Fuzzy auto-completion (bash)
+    - Fuzzy auto-completion (bash, zsh)
+- Vim/Neovim plugin
 
 You can [download fzf executable][bin] alone, but it's recommended that you
 install the extra stuff using the attached install script.
 
 [bin]: https://github.com/junegunn/fzf-bin/releases
 
-### Using git (recommended)
+#### Using git (recommended)
 
 Clone this repository and run
 [install](https://github.com/junegunn/fzf/blob/master/install) script.
 
 ```sh
-git clone https://github.com/junegunn/fzf.git ~/.fzf
+git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 ~/.fzf/install
 ```
 
-### Using curl
-
-In case you don't have git installed:
-
-```sh
-mkdir -p ~/.fzf
-curl -L https://github.com/junegunn/fzf/archive/master.tar.gz |
-    tar xz --strip-components 1 -C ~/.fzf
-~/.fzf/install
-```
-
-### Using Homebrew
+#### Using Homebrew
 
 On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
 
 ```sh
-brew install fzf
+brew reinstall --HEAD fzf
 
-# Install shell extensions - this should be done whenever fzf is updated
-/usr/local/Cellar/fzf/$(fzf --version)/install
+# Install shell extensions
+/usr/local/Cellar/fzf/HEAD/install
 ```
 
-### Install as Vim plugin
+#### Install as Vim plugin
 
 Once you have cloned the repository, add the following line to your .vimrc.
 
@@ -63,57 +64,26 @@ Once you have cloned the repository, add the following line to your .vimrc.
 set rtp+=~/.fzf
 ```
 
-Or you can have [vim-plug](https://github.com/junegunn/vim-plug) manage fzf:
+Or you can have [vim-plug](https://github.com/junegunn/vim-plug) manage fzf
+(recommended):
 
 ```vim
 Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': 'yes \| ./install' }
 ```
 
+#### Upgrading fzf
+
+fzf is being actively developed and you might want to upgrade it once in a
+while. Please follow the instruction below depending on the installation
+method.
+
+- git: `cd ~/.fzf && git pull && ./install`
+- brew: `brew reinstall --HEAD fzf`
+- vim-plug: `:PlugUpdate fzf`
+
 Usage
 -----
 
-```
-usage: fzf [options]
-
-  Search mode
-    -x, --extended        Extended-search mode
-    -e, --extended-exact  Extended-search mode (exact match)
-    -i                    Case-insensitive match (default: smart-case match)
-    +i                    Case-sensitive match
-    -n, --nth=N[,..]      Comma-separated list of field index expressions
-                          for limiting search scope. Each can be a non-zero
-                          integer or a range expression ([BEGIN]..[END])
-        --with-nth=N[,..] Transform the item using index expressions for search
-    -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
-
-  Search result
-    +s, --no-sort         Do not sort the result
-        --tac             Reverse the order of the input
-                          (e.g. 'history | fzf --tac --no-sort')
-
-  Interface
-    -m, --multi           Enable multi-select with tab/shift-tab
-        --no-mouse        Disable mouse
-    +c, --no-color        Disable colors
-    +2, --no-256          Disable 256-color
-        --black           Use black background
-        --reverse         Reverse orientation
-        --prompt=STR      Input prompt (default: '> ')
-
-  Scripting
-    -q, --query=STR       Start the finder with the given query
-    -1, --select-1        Automatically select the only match
-    -0, --exit-0          Exit immediately when there's no match
-    -f, --filter=STR      Filter mode. Do not start interactive finder.
-        --print-query     Print query as the first line
-        --sync            Synchronous search for multi-staged filtering
-                          (e.g. 'fzf --multi | fzf --sync')
-
-  Environment variables
-    FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Defaults options. (e.g. '-x -m')
-```
-
 fzf will launch curses-based finder, read the list from STDIN, and write the
 selected item to STDOUT.
 
@@ -129,27 +99,16 @@ files excluding hidden ones. (You can override the default command with
 vim $(fzf)
 ```
 
-### Keys
+#### Using the finder
 
-Use CTRL-J and CTRL-K (or CTRL-N and CTRL-P) to change the selection, press
-enter key to select the item. CTRL-C, CTRL-G, or ESC will terminate the finder.
+- `CTRL-J` / `CTRL-K` (or `CTRL-N` / `CTRL-P)` to move cursor up and down
+- `Enter` key to select the item, `CTRL-C` / `CTRL-G` / `ESC` to exit
+- On multi-select mode (`-m`), `TAB` and `Shift-TAB` to mark multiple items
+- Emacs style key bindings
+- Mouse: scroll, click, double-click; shift-click and shift-scroll on
+  multi-select mode
 
-The following readline key bindings should also work as expected.
-
-- CTRL-A / CTRL-E
-- CTRL-B / CTRL-F
-- CTRL-H / CTRL-D
-- CTRL-W / CTRL-U / CTRL-Y
-- ALT-B / ALT-F
-
-If you enable multi-select mode with `-m` option, you can select multiple items
-with TAB or Shift-TAB key.
-
-You can also use mouse. Double-click on an item to select it or shift-click (or
-ctrl-click) to select multiple items. Use mouse wheel to move the cursor up and
-down.
-
-### Extended-search mode
+#### Extended-search mode
 
 With `-x` or `--extended` option, fzf will start in "extended-search mode".
 
@@ -168,40 +127,19 @@ such as: `^music .mp3$ sbtrkt !rmx`
 If you don't need fuzzy matching and do not wish to "quote" every word, start
 fzf with `-e` or `--extended-exact` option.
 
-Useful examples
----------------
+#### Environment variables
 
-```sh
-# fe [FUZZY PATTERN] - Open the selected file with the default editor
-#   - Bypass fuzzy finder if there's only one match (--select-1)
-#   - Exit if there's no match (--exit-0)
-fe() {
-  local file
-  file=$(fzf --query="$1" --select-1 --exit-0)
-  [ -n "$file" ] && ${EDITOR:-vim} "$file"
-}
+- `FZF_DEFAULT_COMMAND`
+    - Default command to use when input is tty
+- `FZF_DEFAULT_OPTS`
+    - Default options. e.g. `export FZF_DEFAULT_OPTS="--extended --cycle"`
 
-# fd - cd to selected directory
-fd() {
-  local dir
-  dir=$(find ${1:-*} -path '*/\.*' -prune \
-                  -o -type d -print 2> /dev/null | fzf +m) &&
-  cd "$dir"
-}
+Examples
+--------
 
-# fh - repeat history
-fh() {
-  eval $(([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s --tac | sed 's/ *[0-9]* *//')
-}
-
-# fkill - kill process
-fkill() {
-  ps -ef | sed 1d | fzf -m | awk '{print $2}' | xargs kill -${1:-9}
-}
-```
-
-For more examples, see [the wiki
-page](https://github.com/junegunn/fzf/wiki/examples).
+Many useful examples can be found on [the wiki
+page](https://github.com/junegunn/fzf/wiki/examples). Feel free to add your
+own as well.
 
 Key bindings for command line
 -----------------------------
@@ -209,29 +147,42 @@ Key bindings for command line
 The install script will setup the following key bindings for bash, zsh, and
 fish.
 
-- `CTRL-T` - Paste the selected file path(s) into the command line
-- `CTRL-R` - Paste the selected command from history into the command line
+- `CTRL-T` - Paste the selected files and directories onto the command line
+    - Set `FZF_CTRL_T_COMMAND` to override the default command
+- `CTRL-R` - Paste the selected command from history onto the command line
+    - Sort is disabled by default to respect chronological ordering
+    - Press `CTRL-R` again to toggle sort
 - `ALT-C` - cd into the selected directory
 
-If you're on a tmux session, `CTRL-T` will launch fzf in a new split-window. You
-may disable this tmux integration by setting `FZF_TMUX` to 0, or change the
-height of the window with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
+If you're on a tmux session, fzf will start in a split pane. You may disable
+this tmux integration by setting `FZF_TMUX` to 0, or 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 want to customize the key bindings, consider editing the
-installer-generated source code: `~/.fzf.bash`, `~/.fzf.zsh`, and
-`~/.config/fish/functions/fzf_key_bindings.fish`.
+`fzf-tmux` script
+-----------------
 
-Auto-completion
----------------
+[fzf-tmux](bin/fzf-tmux) is a bash script that opens fzf in a tmux pane.
 
-Disclaimer: *Auto-completion feature is currently experimental, it can change
-over time*
+```sh
+# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+#        (-[udlr]: up/down/left/right)
 
-### bash
+# select git branches in horizontal split below (15 lines)
+git branch | fzf-tmux -d 15
+
+# select multiple words in vertical split on the left (20% of screen width)
+cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
+```
+
+It will still work even when you're not on tmux, silently ignoring `-[udlr]`
+options, so you can invariably use `fzf-tmux` in your scripts.
+
+Fuzzy completion for bash and zsh
+---------------------------------
 
 #### Files and directories
 
@@ -300,18 +251,12 @@ export FZF_COMPLETION_TRIGGER='~~'
 export FZF_COMPLETION_OPTS='+c -x'
 ```
 
-### zsh
-
-TODO :smiley:
-
-(Pull requests are appreciated.)
-
 Usage as Vim plugin
 -------------------
 
 (Note: To use fzf in GVim, an external terminal emulator is required.)
 
-### `:FZF[!]`
+#### `:FZF[!]`
 
 If you have set up fzf for Vim, `:FZF` command will be added.
 
@@ -324,51 +269,46 @@ If you have set up fzf for Vim, `:FZF` command will be added.
 
 " With options
 :FZF --no-sort -m /tmp
+
+" Bang version starts in fullscreen instead of using tmux pane or Neovim split
+:FZF!
 ```
 
-Note that the environment variables `FZF_DEFAULT_COMMAND` and `FZF_DEFAULT_OPTS`
-also apply here.
+Similarly to [ctrlp.vim](https://github.com/kien/ctrlp.vim), use enter key,
+`CTRL-T`, `CTRL-X` or `CTRL-V` to open selected files in the current window,
+in new tabs, in horizontal splits, or in vertical splits respectively.
 
-If you're on a tmux session, `:FZF` will launch fzf in a new split-window whose
-height can be adjusted with `g:fzf_tmux_height` (default: '40%'). However, the
-bang version (`:FZF!`) will always start in fullscreen.
+Note that the environment variables `FZF_DEFAULT_COMMAND` and
+`FZF_DEFAULT_OPTS` also apply here. Refer to [the wiki page][fzf-config] for
+customization.
 
-In GVim, you need an external terminal emulator to start fzf with. `xterm`
-command is used by default, but you can customize it with `g:fzf_launcher`.
+[fzf-config]: https://github.com/junegunn/fzf/wiki/Configuring-FZF-command-(vim)
 
-```vim
-" This is the default. %s is replaced with fzf command
-let g:fzf_launcher = 'xterm -e bash -ic %s'
-
-" Use urxvt instead
-let g:fzf_launcher = 'urxvt -geometry 120x30 -e sh -c %s'
-```
-
-If you're running MacVim on OSX, I recommend you to use iTerm2 as the launcher.
-Refer to the [this wiki
-page](https://github.com/junegunn/fzf/wiki/fzf-with-MacVim-and-iTerm2) to see
-how to set up.
-
-### `fzf#run([options])`
+#### `fzf#run([options])`
 
 For more advanced uses, you can call `fzf#run()` function which returns the list
 of the selected items.
 
 `fzf#run()` may take an options-dictionary:
 
-| Option name     | Type          | Description                                                        |
-| --------------- | ------------- | ------------------------------------------------------------------ |
-| `source`        | string        | External command to generate input to fzf (e.g. `find .`)          |
-| `source`        | list          | Vim list as input to fzf                                           |
-| `sink`          | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)         |
-| `sink`          | funcref       | Reference to function to process each selected item                |
-| `options`       | string        | Options to fzf                                                     |
-| `dir`           | string        | Working directory                                                  |
-| `tmux_width`    | number/string | Use tmux vertical split with the given height (e.g. `20`, `50%`)   |
-| `tmux_height`   | number/string | Use tmux horizontal split with the given height (e.g. `20`, `50%`) |
-| `launcher`      | string        | External terminal emulator to start fzf with (Only used in GVim)   |
+| Option name                | Type          | Description                                                      |
+| -------------------------- | ------------- | ---------------------------------------------------------------- |
+| `source`                   | string        | External command to generate input to fzf (e.g. `find .`)        |
+| `source`                   | list          | Vim list as input to fzf                                         |
+| `sink`                     | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)       |
+| `sink`                     | funcref       | Reference to function to process each selected item              |
+| `sink*`                    | funcref       | Similar to `sink`, but takes the list of output lines at once    |
+| `options`                  | string        | Options to fzf                                                   |
+| `dir`                      | string        | Working directory                                                |
+| `up`/`down`/`left`/`right` | number/string | Use tmux pane with the given size (e.g. `20`, `50%`)             |
+| `window` (*Neovim only*)   | string        | Command to open fzf window (e.g. `vertical aboveleft 30new`)     |
+| `launcher`                 | string        | External terminal emulator to start fzf with (GVim only)         |
+| `launcher`                 | funcref       | Function for generating `launcher` string (GVim only)            |
 
-#### Examples
+_However on Neovim `fzf#run` is asynchronous and does not return values so you
+should use `sink` or `sink*` to process the output from fzf._
+
+##### Examples
 
 If `sink` option is not given, `fzf#run` will simply return the list.
 
@@ -392,10 +332,10 @@ nnoremap <silent> <Leader>C :call fzf#run({
 \   'source':
 \     map(split(globpath(&rtp, "colors/*.vim"), "\n"),
 \         "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')"),
-\   'sink':       'colo',
-\   'options':    '+m',
-\   'tmux_width': 20,
-\   'launcher':   'xterm -geometry 20x30 -e bash -ic %s'
+\   'sink':     'colo',
+\   'options':  '+m',
+\   'left':     20,
+\   'launcher': 'xterm -geometry 20x30 -e bash -ic %s'
 \ })<CR>
 ```
 
@@ -404,47 +344,46 @@ handy mapping that selects an open buffer.
 
 ```vim
 " List of buffers
-function! BufList()
+function! s:buflist()
   redir => ls
   silent ls
   redir END
   return split(ls, '\n')
 endfunction
 
-function! BufOpen(e)
-  execute 'buffer '. matchstr(a:e, '^[ 0-9]*')
+function! s:bufopen(e)
+  execute 'buffer' matchstr(a:e, '^[ 0-9]*')
 endfunction
 
 nnoremap <silent> <Leader><Enter> :call fzf#run({
-\   'source':      reverse(BufList()),
-\   'sink':        function('BufOpen'),
-\   'options':     '+m',
-\   'tmux_height': '40%'
+\   'source':  reverse(<sid>buflist()),
+\   'sink':    function('<sid>bufopen'),
+\   'options': '+m',
+\   'down':    len(<sid>buflist()) + 2
 \ })<CR>
 ```
 
-### Articles
-
-- [fzf+vim+tmux](http://junegunn.kr/2014/04/fzf+vim+tmux)
+More examples can be found on [the wiki
+page](https://github.com/junegunn/fzf/wiki/Examples-(vim)).
 
 Tips
 ----
 
-### Rendering issues
+#### Rendering issues
 
 If you have any rendering issues, check the followings:
 
 1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
-  contains `256` (e.g. `xterm-256color`)
+   contains `256` (e.g. `xterm-256color`)
 2. If you're on screen or tmux, `$TERM` should be either `screen` or
-  `screen-256color`
+   `screen-256color`
 3. Some terminal emulators (e.g. mintty) have problem displaying default
-  background color and make some text unable to read. In that case, try `--black`
-  option. And if it solves your problem, I recommend including it in
-  `FZF_DEFAULT_OPTS` for further convenience.
+   background color and make some text unable to read. In that case, try
+   `--black` option. And if it solves your problem, I recommend including it
+   in `FZF_DEFAULT_OPTS` for further convenience.
 4. If you still have problem, try `--no-256` option or even `--no-color`.
 
-### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
+#### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
 
 [ag](https://github.com/ggreer/the_silver_searcher) or
 [pt](https://github.com/monochromegane/the_platinum_searcher) will do the
@@ -459,62 +398,23 @@ export FZF_DEFAULT_COMMAND='ag -l -g ""'
 
 # Now fzf (w/o pipe) will use ag instead of find
 fzf
+
+# To apply the command to CTRL-T as well
+export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
 ```
 
-### `git ls-tree` for fast traversal
+#### `git ls-tree` for fast traversal
 
 If you're running fzf in a large git repository, `git ls-tree` can boost up the
 speed of the traversal.
 
 ```sh
-# Copy the original fzf function to __fzf
-declare -f __fzf > /dev/null ||
-  eval "$(echo "__fzf() {"; declare -f fzf | \grep -v '^{' | tail -n +2)"
-
-# Use git ls-tree when possible
-fzf() {
-  if [ -n "$(git rev-parse HEAD 2> /dev/null)" ]; then
-    FZF_DEFAULT_COMMAND="git ls-tree -r --name-only HEAD" __fzf "$@"
-  else
-    __fzf "$@"
-  fi
-}
+export FZF_DEFAULT_COMMAND='
+  (git ls-tree -r --name-only HEAD ||
+   find * -name ".*" -prune -o -type f -print -o -type l -print) 2> /dev/null'
 ```
 
-### Using fzf with tmux splits
-
-It isn't too hard to write your own fzf-tmux combo like the default
-CTRL-T key binding. (Or is it?)
-
-```sh
-# This is a helper function that splits the current pane to start the given
-# command ($1) and sends its output back to the original pane with any number of
-# optional keys (shift; $*).
-fzf_tmux_helper() {
-  [ -n "$TMUX_PANE" ] || return
-  local cmd=$1
-  shift
-  tmux split-window -p 40 \
-    "bash -c \"\$(tmux send-keys -t $TMUX_PANE \"\$(source ~/.fzf.bash; $cmd)\" $*)\""
-}
-
-# This is the function we are going to run in the split pane.
-# - "find" to list the directories
-# - "sed" will escape spaces in the paths.
-# - "paste" will join the selected paths into a single line
-fzf_tmux_dir() {
-  fzf_tmux_helper \
-    'find * -path "*/\.*" -prune -o -type d -print 2> /dev/null |
-     fzf --multi |
-     sed "s/ /\\\\ /g" |
-     paste -sd" " -' Space
-}
-
-# Bind CTRL-X-CTRL-D to fzf_tmux_dir
-bind '"\C-x\C-d": "$(fzf_tmux_dir)\e\C-e"'
-```
-
-### Fish shell
+#### Fish shell
 
 It's [a known bug of fish](https://github.com/fish-shell/fish-shell/issues/1362)
 that it doesn't allow reading from STDIN in command substitution, which means
@@ -522,22 +422,10 @@ simple `vim (fzf)` won't work as expected. The workaround is to store the result
 of fzf to a temporary file.
 
 ```sh
-function vimf
-  if fzf > $TMPDIR/fzf.result
-    vim (cat $TMPDIR/fzf.result)
-  end
-end
-
-function fe
-  set tmp $TMPDIR/fzf.result
-  fzf --query="$argv[1]" --select-1 --exit-0 > $tmp
-  if [ (cat $tmp | wc -l) -gt 0 ]
-    vim (cat $tmp)
-  end
-end
+fzf > $TMPDIR/fzf.result; and vim (cat $TMPDIR/fzf.result)
 ```
 
-### Handling UTF-8 NFD paths on OSX
+#### Handling UTF-8 NFD paths on OSX
 
 Use iconv to convert NFD paths to NFC:
 

Rakefile

@@ -1,12 +0,0 @@
-require "bundler/gem_tasks"
-require 'rake/testtask'
-
-Rake::TestTask.new(:test) do |test|
-  test.pattern = 'test/test_go.rb'
-end
-
-Rake::TestTask.new(:testall) do |test|
-  test.pattern = 'test/test_*.rb'
-end
-
-task :default => :test

bin/fzf-tmux

@@ -0,0 +1,136 @@
+#!/usr/bin/env bash
+# fzf-tmux: starts fzf in a tmux pane
+# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+
+args=()
+opt=""
+skip=""
+swap=""
+close=""
+term=""
+while [ $# -gt 0 ]; do
+  arg="$1"
+  case "$arg" in
+    -)
+      term=1
+      ;;
+    -w*|-h*|-d*|-u*|-r*|-l*)
+      if [ -n "$skip" ]; then
+        args+=("$1")
+        shift
+        continue
+      fi
+      if [[ "$arg" =~ ^.[lrw] ]]; then
+        opt="-h"
+        if [[ "$arg" =~ ^.l ]]; then
+          opt="$opt -d"
+          swap="; swap-pane -D ; select-pane -L"
+          close="; tmux swap-pane -D"
+        fi
+      else
+        opt=""
+        if [[ "$arg" =~ ^.u ]]; then
+          opt="$opt -d"
+          swap="; swap-pane -D ; select-pane -U"
+          close="; tmux swap-pane -D"
+        fi
+      fi
+      if [ ${#arg} -gt 2 ]; then
+        size="${arg:2}"
+      else
+        shift
+        if [[ "$1" =~ ^[0-9]+%?$ ]]; then
+          size="$1"
+        else
+          [ -n "$1" -a "$1" != "--" ] && args+=("$1")
+          shift
+          continue
+        fi
+      fi
+
+      if [[ "$size" =~ %$ ]]; then
+        size=${size:0:((${#size}-1))}
+        if [ -n "$swap" ]; then
+          opt="$opt -p $(( 100 - size ))"
+        else
+          opt="$opt -p $size"
+        fi
+      else
+        if [ -n "$swap" ]; then
+          if [[ "$arg" =~ ^.l ]]; then
+            [ -n "$COLUMNS" ] && max=$COLUMNS || max=$(tput cols)
+          else
+            [ -n "$LINES" ] && max=$LINES || max=$(tput lines)
+          fi
+          size=$(( max - size ))
+          [ $size -lt 0 ] && size=0
+          opt="$opt -l $size"
+        else
+          opt="$opt -l $size"
+        fi
+      fi
+      ;;
+    --)
+      # "--" can be used to separate fzf-tmux options from fzf options to
+      # avoid conflicts
+      skip=1
+      ;;
+    *)
+      args+=("$1")
+      ;;
+  esac
+  shift
+done
+
+if [ -z "$TMUX_PANE" ] || tmux list-panes -F '#F' | grep -q Z; then
+  fzf "${args[@]}"
+  exit $?
+fi
+
+set -e
+
+# Clean up named pipes on exit
+id=$RANDOM
+argsf=/tmp/fzf-args-$id
+fifo1=/tmp/fzf-fifo1-$id
+fifo2=/tmp/fzf-fifo2-$id
+fifo3=/tmp/fzf-fifo3-$id
+cleanup() {
+  rm -f $argsf $fifo1 $fifo2 $fifo3
+}
+trap cleanup EXIT SIGINT SIGTERM
+
+fail() {
+  >&2 echo "$1"
+  exit 1
+}
+fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
+[ -x "$fzf" ] || fail "fzf executable not found"
+
+envs="env TERM=$TERM "
+[ -n "$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 $fifo2
+mkfifo $fifo3
+
+# Build arguments to fzf
+opts=""
+for arg in "${args[@]}"; do
+  opts="$opts \"${arg//\"/\\\"}\""
+done
+
+if [ -n "$term" -o -t 0 ]; then
+  cat <<< "$fzf $opts > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  tmux set-window-option -q synchronize-panes off \;\
+    split-window $opt "cd $(printf %q "$PWD");$envs bash $argsf" $swap
+else
+  mkfifo $fifo1
+  cat <<< "$fzf $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  tmux set-window-option -q synchronize-panes off \;\
+    split-window $opt "$envs bash $argsf" $swap
+  cat <&0 > $fifo1 &
+fi
+cat $fifo2
+[ "$(cat $fifo3)" = '0' ]
+

ext/mkrf_conf.rb

@@ -1,9 +0,0 @@
-require 'rubygems/dependency_installer'
-
-if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.1.0')
-  Gem::DependencyInstaller.new.install 'curses', '~> 1.0'
-end
-
-File.open(File.expand_path('../Rakefile', __FILE__), 'w') do |f|
-  f.puts 'task :default'
-end

fzf

@@ -8,6 +8,8 @@
 # /_/   /___/_/    Fuzzy finder for your shell
 #
 # Version: 0.8.9 (Dec 24, 2014)
+# Deprecation alert:
+#          This script is no longer maintained. Use the new Go version.
 #
 # Author:  Junegunn Choi
 # URL:     https://github.com/junegunn/fzf
@@ -124,6 +126,7 @@ class FZF
     @reverse  = false
     @prompt   = '> '
     @shr_mtx  = Mutex.new
+    @expect   = false
     @print_query = false
 
     argv =
@@ -198,6 +201,17 @@ class FZF
       when '--no-print-query'          then @print_query = false
       when '-e', '--extended-exact'    then @extended = :exact
       when '+e', '--no-extended-exact' then @extended = nil
+      when '--expect'
+        argv.shift
+        @expect = true
+      when /^--expect=(.*)$/
+        @expect = true
+      when '--toggle-sort', '--tiebreak', '--color', '--bind', '--history', '--history-size'
+        argv.shift
+      when '--tac', '--no-tac', '--sync', '--no-sync', '--hscroll', '--no-hscroll',
+           '--inline-info', '--no-inline-info', '--read0', '--cycle', /^--bind=(.*)$/,
+           /^--color=(.*)$/, /^--toggle-sort=(.*)$/, /^--tiebreak=(.*)$/, /^--history(-max)?=(.*)$/
+        # XXX
       else
         usage 1, "illegal option: #{o}"
       end
@@ -272,10 +286,12 @@ class FZF
           if loaded
             if @select1 && len == 1
               puts @query if @print_query
+              puts if @expect
               burp(empty ? matches.first : matches.first.first)
               exit 0
             elsif @exit0 && len == 0
               puts @query if @print_query
+              puts if @expect
               exit 0
             end
           end
@@ -619,7 +635,8 @@ class FZF
   def start_reader
     stream =
       if @source.tty?
-        if default_command = ENV['FZF_DEFAULT_COMMAND']
+        default_command = ENV['FZF_DEFAULT_COMMAND']
+        if default_command && !default_command.empty?
           IO.popen(default_command)
         elsif !`which find`.empty?
           IO.popen("find * -path '*/\\.*' -prune -o -type f -print -o -type l -print 2> /dev/null")
@@ -1148,6 +1165,7 @@ class FZF
       C.close_screen
       q, selects = geta(:@query, :@selects)
       @stdout.puts q if @print_query
+      @stdout.puts if @expect
       if got
         if selects.empty?
           burp got

fzf-completion.zsh

@@ -1,9 +0,0 @@
-#!/bin/zsh
-#     ____      ____
-#    / __/___  / __/
-#   / /_/_  / / /_
-#  / __/ / /_/ __/
-# /_/   /___/_/-completion.zsh
-#
-
-# TODO

fzf.gemspec

@@ -1,17 +0,0 @@
-# coding: utf-8
-Gem::Specification.new do |spec|
-  spec.name          = 'fzf'
-  spec.version       = '0.8.4'
-  spec.authors       = ['Junegunn Choi']
-  spec.email         = ['junegunn.c@gmail.com']
-  spec.description   = %q{Fuzzy finder for your shell}
-  spec.summary       = %q{Fuzzy finder for your shell}
-  spec.homepage      = 'https://github.com/junegunn/fzf'
-  spec.license       = 'MIT'
-
-  spec.bindir        = '.'
-  spec.files         = %w[fzf.gemspec]
-  spec.executables   = 'fzf'
-
-  spec.extensions   += ['ext/mkrf_conf.rb']
-end

install

@@ -1,12 +1,20 @@
 #!/usr/bin/env bash
 
-version=0.9.4
+[[ "$@" =~ --pre ]] && version=0.10.2 pre=1 ||
+                       version=0.10.2 pre=0
 
 cd $(dirname $BASH_SOURCE)
 fzf_base=$(pwd)
 
+# If stdin is a tty, we are "interactive".
+[ -t 0 ] && interactive=yes
+
 ask() {
-  read -p "$1 ([y]/n) " -n 1 -r
+  # non-interactive shell: wait for a linefeed
+  #     interactive shell: continue after a single keypress
+  [ -n "$interactive" ] && read_n='-n 1' || read_n=
+
+  read -p "$1 ([y]/n) " $read_n -r
   echo
   [[ ! $REPLY =~ ^[Nn]$ ]]
 }
@@ -38,11 +46,13 @@ symlink() {
 
 download() {
   echo "Downloading bin/fzf ..."
-  if [[ ! $1 =~ dev && -x "$fzf_base"/bin/fzf ]]; then
-    echo "  - Already exists"
-    check_binary && return
-  elif [ -x "$fzf_base"/bin/$1 ]; then
-    symlink $1 && check_binary && return
+  if [ $pre = 0 ]; then
+    if [ -x "$fzf_base"/bin/fzf ]; then
+      echo "  - Already exists"
+      check_binary && return
+    elif [ -x "$fzf_base"/bin/$1 ]; then
+      symlink $1 && check_binary && return
+    fi
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
   if [ $? -ne 0 ]; then
@@ -77,7 +87,7 @@ case "$archi" in
   Darwin\ i*86)   download fzf-$version-darwin_386   ;;
   Linux\ x86_64)  download fzf-$version-linux_amd64  ;;
   Linux\ i*86)    download fzf-$version-linux_386    ;;
-  *)              binary_available=0                 ;;
+  *)              binary_available=0 binary_error=1  ;;
 esac
 
 cd "$fzf_base"
@@ -144,8 +154,18 @@ if [ -n "$binary_error" ]; then
     echo "< 1.9"
     fzf_cmd="$ruby $fzf_base/fzf"
   fi
+
+  # Create fzf script
+  echo -n "Creating wrapper script for fzf ... "
+  rm -f "$fzf_base"/bin/fzf
+  echo "#!/bin/sh" > "$fzf_base"/bin/fzf
+  echo "$fzf_cmd \"\$@\"" >> "$fzf_base"/bin/fzf
+  chmod +x "$fzf_base"/bin/fzf
+  echo "OK"
 fi
 
+[[ "$*" =~ "--bin" ]] && exit 0
+
 # Auto-completion
 ask "Do you want to add auto-completion support?"
 auto_completion=$?
@@ -159,294 +179,62 @@ for shell in bash zsh; do
   echo -n "Generate ~/.fzf.$shell ... "
   src=~/.fzf.${shell}
 
-  fzf_completion="[[ \$- =~ i ]] && source \"$fzf_base/fzf-completion.${shell}\""
+  fzf_completion="[[ \$- =~ i ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
   if [ $auto_completion -ne 0 ]; then
     fzf_completion="# $fzf_completion"
   fi
 
-  if [ -n "$binary_error" ]; then
-    cat > $src << EOF
-# Setup fzf function
-# ------------------
-unalias fzf 2> /dev/null
-fzf() {
-  $fzf_cmd "\$@"
-}
-export -f fzf > /dev/null
+  fzf_key_bindings="source \"$fzf_base/shell/key-bindings.${shell}\""
+  if [ $key_bindings -ne 0 ]; then
+    fzf_key_bindings="# $fzf_key_bindings"
+  fi
 
-# Auto-completion
-# ---------------
-$fzf_completion
-
-EOF
-  else
-    cat > $src << EOF
+  cat > $src << EOF
 # Setup fzf
 # ---------
-unalias fzf 2> /dev/null
-unset fzf 2> /dev/null
 if [[ ! "\$PATH" =~ "$fzf_base/bin" ]]; then
-  export PATH="$fzf_base/bin:\$PATH"
+  export PATH="\$PATH:$fzf_base/bin"
+fi
+
+# Man path
+# --------
+if [[ ! "\$MANPATH" =~ "$fzf_base/man" && -d "$fzf_base/man" ]]; then
+  export MANPATH="\$MANPATH:$fzf_base/man"
 fi
 
 # Auto-completion
 # ---------------
 $fzf_completion
 
+# Key bindings
+# ------------
+$fzf_key_bindings
+
 EOF
-  fi
-
-  if [ $key_bindings -eq 0 ]; then
-    if [ $shell = bash ]; then
-      cat >> $src << "EOFZF"
-# Key bindings
-# ------------
-__fsel() {
-  command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type f -print \
-    -o -type d -print \
-    -o -type l -print 2> /dev/null | sed 1d | cut -b3- | fzf -m | while read item; do
-    printf '%q ' "$item"
-  done
-  echo
-}
-
-if [[ $- =~ i ]]; then
-
-__fsel_tmux() {
-  local height
-  height=${FZF_TMUX_HEIGHT:-40%}
-  if [[ $height =~ %$ ]]; then
-    height="-p ${height%\%}"
-  else
-    height="-l $height"
-  fi
-  tmux split-window $height "bash -c 'source ~/.fzf.bash; tmux send-keys -t $TMUX_PANE \"\$(__fsel)\"'"
-}
-
-__fcd() {
-  local dir
-  dir=$(command find -L ${1:-.} \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | fzf +m) && printf 'cd %q' "$dir"
-}
-
-__use_tmux=0
-[ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1
-
-if [ -z "$(set -o | \grep '^vi.*on')" ]; then
-  # Required to refresh the prompt after fzf
-  bind '"\er": redraw-current-line'
-
-  # CTRL-T - Paste the selected file path into the command line
-  if [ $__use_tmux -eq 1 ]; then
-    bind '"\C-t": " \C-u \C-a\C-k$(__fsel_tmux)\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
-  else
-    bind '"\C-t": " \C-u \C-a\C-k$(__fsel)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
-  fi
-
-  # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": " \C-e\C-u$(HISTTIMEFORMAT= history | fzf +s --tac +m -n2..,.. | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
-
-  # ALT-C - cd into the selected directory
-  bind '"\ec": " \C-e\C-u$(__fcd)\e\C-e\er\C-m"'
-else
-  bind '"\C-x\C-e": shell-expand-line'
-  bind '"\C-x\C-r": redraw-current-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 [ $__use_tmux -eq 1 ]; then
-    bind '"\C-t": "\e$a \eddi$(__fsel_tmux)\C-x\C-e\e0P$xa"'
-  else
-    bind '"\C-t": "\e$a \eddi$(__fsel)\C-x\C-e\e0Px$a \C-x\C-r\exa "'
-  fi
-  bind -m vi-command '"\C-t": "i\C-t"'
-
-  # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\eddi$(HISTTIMEFORMAT= history | fzf +s --tac +m -n2..,.. | sed \"s/ *[0-9]* *//\")\C-x\C-e\e$a\C-x\C-r"'
-  bind -m vi-command '"\C-r": "i\C-r"'
-
-  # ALT-C - cd into the selected directory
-  bind '"\ec": "\eddi$(__fcd)\C-x\C-e\C-x\C-r\C-m"'
-  bind -m vi-command '"\ec": "i\ec"'
-fi
-
-unset __use_tmux
-
-fi
-EOFZF
-    else  # zsh
-      cat >> $src << "EOFZF"
-# Key bindings
-# ------------
-# CTRL-T - Paste the selected file path(s) into the command line
-__fsel() {
-  command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type f -print \
-    -o -type d -print \
-    -o -type l -print 2> /dev/null | sed 1d | cut -b3- | fzf -m | while read item; do
-    printf '%q ' "$item"
-  done
-  echo
-}
-
-if [[ $- =~ i ]]; then
-
-if [ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ]; then
-  fzf-file-widget() {
-    local height
-    height=${FZF_TMUX_HEIGHT:-40%}
-    if [[ $height =~ %$ ]]; then
-      height="-p ${height%\%}"
-    else
-      height="-l $height"
-    fi
-    tmux split-window $height "zsh -c 'source ~/.fzf.zsh; tmux send-keys -t $TMUX_PANE \"\$(__fsel)\"'"
-  }
-else
-  fzf-file-widget() {
-    LBUFFER="${LBUFFER}$(__fsel)"
-    zle redisplay
-  }
-fi
-zle     -N   fzf-file-widget
-bindkey '^T' fzf-file-widget
-
-# ALT-C - cd into the selected directory
-fzf-cd-widget() {
-  cd "${$(command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | fzf +m):-.}"
-  zle reset-prompt
-}
-zle     -N    fzf-cd-widget
-bindkey '\ec' fzf-cd-widget
-
-# CTRL-R - Paste the selected command from history into the command line
-fzf-history-widget() {
-  LBUFFER=$(fc -l 1 | fzf +s --tac +m -n2..,.. | sed "s/ *[0-9*]* *//")
-  zle redisplay
-}
-zle     -N   fzf-history-widget
-bindkey '^R' fzf-history-widget
-
-fi
-EOFZF
-    fi
-  fi
-
   echo "OK"
 done
 
 # fish
 has_fish=0
-if [ -n "$(which fish)" ]; then
+if [ -n "$(which fish 2> /dev/null)" ]; then
   has_fish=1
-  echo -n "Generate ~/.config/fish/functions/fzf.fish ... "
+  echo -n "Update fish_user_paths ... "
+  fish << EOF
+  echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
+  or set --universal fish_user_paths \$fish_user_paths $fzf_base/bin
+EOF
+  [ $? -eq 0 ] && echo "OK" || echo "Failed"
+
   mkdir -p ~/.config/fish/functions
-  if [ -n "$binary_error" ]; then
-    cat > ~/.config/fish/functions/fzf.fish << EOFZF
-function fzf
-  $fzf_cmd \$argv
-end
-EOFZF
-  else
-    cat > ~/.config/fish/functions/fzf.fish << EOFZF
-function fzf
-  $fzf_base/bin/fzf \$argv
-end
-EOFZF
+  if [ -e ~/.config/fish/functions/fzf.fish ]; then
+    echo -n "Remove unnecessary ~/.config/fish/functions/fzf.fish ... "
+    rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
   fi
-  echo "OK"
 
   if [ $key_bindings -eq 0 ]; then
-    echo -n "Generate ~/.config/fish/functions/fzf_key_bindings.fish ... "
-    cat > ~/.config/fish/functions/fzf_key_bindings.fish << "EOFZF"
-function fzf_key_bindings
-  # Due to a bug of fish, we cannot use command substitution,
-  # so we use temporary file instead
-  if [ -z "$TMPDIR" ]
-    set -g TMPDIR /tmp
-  end
-
-  function __fzf_list
-    command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-      -o -type f -print \
-      -o -type d -print \
-      -o -type l -print 2> /dev/null | sed 1d | cut -b3-
-  end
-
-  function __fzf_list_dir
-    command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) \
-      -prune -o -type d -print 2> /dev/null | sed 1d | cut -b3-
-  end
-
-  function __fzf_escape
-    while read item
-      echo -n (echo -n "$item" | sed -E 's/([ "$~'\''([{<>})])/\\\\\\1/g')' '
-    end
-  end
-
-  function __fzf_ctrl_t
-    if [ -n "$TMUX_PANE" -a "$FZF_TMUX" != "0" ]
-      tmux split-window (__fzf_tmux_height) "fish -c 'fzf_key_bindings; __fzf_ctrl_t_tmux \\$TMUX_PANE'"
-    else
-      __fzf_list | fzf -m > $TMPDIR/fzf.result
-      and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
-      commandline -f repaint
-      rm -f $TMPDIR/fzf.result
-    end
-  end
-
-  function __fzf_ctrl_t_tmux
-    __fzf_list | fzf -m > $TMPDIR/fzf.result
-    and tmux send-keys -t $argv[1] (cat $TMPDIR/fzf.result | __fzf_escape)
-    rm -f $TMPDIR/fzf.result
-  end
-
-  function __fzf_reverse
-    if which tac > /dev/null
-      tac $argv
-    else
-      tail -r $argv
-    end
-  end
-
-  function __fzf_ctrl_r
-    history | __fzf_reverse | fzf +s --tac +m > $TMPDIR/fzf.result
-    and commandline (cat $TMPDIR/fzf.result)
-    commandline -f repaint
-    rm -f $TMPDIR/fzf.result
-  end
-
-  function __fzf_alt_c
-    # Fish hangs if the command before pipe redirects (2> /dev/null)
-    __fzf_list_dir | fzf +m > $TMPDIR/fzf.result
-    [ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
-    and cd (cat $TMPDIR/fzf.result)
-    commandline -f repaint
-    rm -f $TMPDIR/fzf.result
-  end
-
-  function __fzf_tmux_height
-    if set -q FZF_TMUX_HEIGHT
-      set height $FZF_TMUX_HEIGHT
-    else
-      set height 40%
-    end
-    if echo $height | \grep -q -E '%$'
-      echo "-p "(echo $height | sed 's/%$//')
-    else
-      echo "-l $height"
-    end
-    set -e height
-  end
-
-  bind \ct '__fzf_ctrl_t'
-  bind \cr '__fzf_ctrl_r'
-  bind \ec '__fzf_alt_c'
-end
-EOFZF
-    echo "OK"
+    echo -n "Symlink ~/.config/fish/functions/fzf_key_bindings.fish ... "
+    ln -sf $fzf_base/shell/key-bindings.fish \
+           ~/.config/fish/functions/fzf_key_bindings.fish && echo "OK" || echo "Failed"
   fi
 fi
 
@@ -476,12 +264,6 @@ done
 if [ $key_bindings -eq 0 -a $has_fish -eq 1 ]; then
   bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
   append_line "fzf_key_bindings" "$bind_file"
-
-  echo '  * Due to a known bug of fish, you may have issues running fzf on fish.'
-  echo '  * If that happens, try the following:'
-  echo '    - Remove ~/.config/fish/functions/fzf.fish'
-  echo '    - Place fzf executable in a directory included in $PATH'
-  echo
 fi
 
 cat << EOF

man/man1/fzf.1

@@ -0,0 +1,402 @@
+.ig
+The MIT License (MIT)
+
+Copyright (c) 2015 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
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+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 "Aug 2015" "fzf 0.10.2" "fzf - a command-line fuzzy finder"
+
+.SH NAME
+fzf - a command-line fuzzy finder
+
+.SH SYNOPSIS
+fzf [options]
+
+.SH DESCRIPTION
+fzf is a general-purpose command-line fuzzy finder.
+
+.SH OPTIONS
+.SS Search mode
+.TP
+.B "-x, --extended"
+Extended-search mode
+.TP
+.B "-e, --extended-exact"
+Extended-search mode (exact match)
+.TP
+.B "-i"
+Case-insensitive match (default: smart-case match)
+.TP
+.B "+i"
+Case-sensitive match
+.TP
+.BI "-n, --nth=" "N[,..]"
+Comma-separated list of field index expressions for limiting search scope.
+See \fBFIELD INDEX EXPRESSION\fR for details.
+.TP
+.BI "--with-nth=" "N[,..]"
+Transform each item using index expressions within finder
+.TP
+.BI "-d, --delimiter=" "STR"
+Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
+.SS Search result
+.TP
+.B "+s, --no-sort"
+Do not sort the result
+.TP
+.B "--tac"
+Reverse the order of the input
+.RS
+e.g. \fBhistory | fzf --tac --no-sort\fR
+.RE
+.TP
+.BI "--tiebreak=" "CRI"
+Sort criterion to use when the scores are tied
+.br
+.R ""
+.br
+.BR length "  Prefers item with shorter length"
+.br
+.BR begin "   Prefers item with matched substring closer to the beginning"
+.br
+.BR end "     Prefers item with matched substring closer to the end"
+.br
+.BR index "   Prefers item that appeared earlier in the input stream"
+.br
+.SS Interface
+.TP
+.B "-m, --multi"
+Enable multi-select with tab/shift-tab
+.TP
+.B "--ansi"
+Enable processing of ANSI color codes
+.TP
+.B "--no-mouse"
+Disable mouse
+.TP
+.BI "--color=" "[BASE_SCHEME][,COLOR:ANSI]"
+Color configuration. The name of the base color scheme is followed by custom
+color mappings. Ansi color code of -1 denotes terminal default
+foreground/background color.
+
+.RS
+e.g. \fBfzf --color=bg+:24\fR
+     \fBfzf --color=light,fg:232,bg:255,bg+:116,info:27\fR
+.RE
+
+.RS
+.B BASE SCHEME:
+    (default: dark on 256-color terminal, otherwise 16)
+
+    \fBdark    \fRColor scheme for dark 256-color terminal
+    \fBlight   \fRColor scheme for light 256-color terminal
+    \fB16      \fRColor scheme for 16-color terminal
+    \fBbw      \fRNo colors
+
+.B COLOR:
+    \fBfg      \fRText
+    \fBbg      \fRBackground
+    \fBhl      \fRHighlighted substrings
+    \fBfg+     \fRText (current line)
+    \fBbg+     \fRBackground (current line)
+    \fBhl+     \fRHighlighted substrings (current line)
+    \fBinfo    \fRInfo
+    \fBprompt  \fRPrompt
+    \fBpointer \fRPointer to the current line
+    \fBmarker  \fRMulti-select marker
+    \fBspinner \fRStreaming input indicator
+    \fBheader  \fRHeader
+.RE
+.TP
+.B "--black"
+Use black background
+.TP
+.B "--reverse"
+Reverse orientation
+.TP
+.BI "--margin=" MARGIN
+Comma-separated expression for margins around the finder.
+.br
+.R ""
+.br
+.RS
+.BR TRBL "     Same margin for top, right, bottom, and left"
+.br
+.BR TB,RL "    Vertical, horizontal margin"
+.br
+.BR T,RL,B "   Top, horizontal, bottom margin"
+.br
+.BR T,R,B,L "  Top, right, bottom, left margin"
+.br
+.R ""
+.br
+Each part can be given in absolute number or in percentage relative to the
+terminal size with \fB%\fR suffix.
+.br
+.R ""
+.br
+e.g. \fBfzf --margin 10%\fR
+     \fBfzf --margin 1,5%\fR
+.RE
+.TP
+.B "--cycle"
+Enable cyclic scroll
+.TP
+.B "--no-hscroll"
+Disable horizontal scroll
+.TP
+.B "--inline-info"
+Display finder info inline with the query
+.TP
+.BI "--prompt=" "STR"
+Input prompt (default: '> ')
+.TP
+.BI "--toggle-sort=" "KEY"
+Key to toggle sort. For the list of the allowed key names, see \fB--bind\fR.
+.TP
+.BI "--bind=" "KEYBINDS"
+Comma-separated list of custom key bindings. Each key binding expression
+follows the following format: \fBKEY:ACTION\fR
+.RS
+e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
+.RE
+
+.RS
+.B AVAILABLE KEYS:
+    \fIctrl-[a-z]\fR
+    \fIalt-[a-z]\fR
+    \fIf[1-4]\fR
+    \fIenter\fR       (\fIreturn\fR)
+    \fIspace\fR
+    \fIbspace\fR      (\fIbs\fR)
+    \fIalt-bspace\fR  (\fIalt-bs\fR)
+    \fItab\fR
+    \fIbtab\fR        (\fIshift-tab\fR)
+    \fIesc\fR
+    \fIdel\fR
+    \fIup\fR
+    \fIdown\fR
+    \fIleft\fR
+    \fIright\fR
+    \fIhome\fR
+    \fIend\fR
+    \fIpgup\fR        (\fIpage-up\fR)
+    \fIpgdn\fR        (\fIpage-down\fR)
+    \fIshift-left\fR
+    \fIshift-right\fR
+    or any single character
+.RE
+
+.RS
+  \fBACTION:               DEFAULT BINDINGS:
+    \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
+    \fBaccept\fR                \fIctrl-m  (enter)\fR
+    \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
+    \fBclear-screen\fR          \fIctrl-l\fR
+    \fBdelete-char\fR           \fIdel\fR
+    \fBdelete-char/eof\fR       \fIctrl-d\fR
+    \fBdeselect-all\fR
+    \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
+    \fBend-of-line\fR           \fIctrl-e  end\fR
+    \fBexecute(...)\fR          (see below for the details)
+    \fBforward-char\fR          \fIctrl-f  right\fR
+    \fBforward-word\fR          \fIalt-f   shift-right\fR
+    \fBignore\fR
+    \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
+    \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
+    \fBselect-all\fR
+    \fBtoggle\fR
+    \fBtoggle-all\fR
+    \fBtoggle-down\fR           \fIctrl-i  (tab)\fR
+    \fBtoggle-sort\fR           (equivalent to \fB--toggle-sort\fR)
+    \fBtoggle-up\fR             \fIbtab    (shift-tab)\fR
+    \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
+.RE
+
+.RS
+With \fBexecute(...)\fR action, you can execute arbitrary commands without
+leaving fzf. For example, you can turn fzf into a simple file browser by
+binding \fBenter\fR key to \fBless\fR command like follows.
+
+.RS
+\fBfzf --bind "enter:execute(less {})"\fR
+.RE
+
+\fB{}\fR is the placeholder for the double-quoted string of the current line.
+If the command contains parentheses, you can use any of the following
+alternative notations to avoid parse errors.
+
+    \fBexecute[...]\fR
+    \fBexecute~...~\fR
+    \fBexecute!...!\fR
+    \fBexecute@...@\fR
+    \fBexecute#...#\fR
+    \fBexecute$...$\fR
+    \fBexecute%...%\fR
+    \fBexecute^...^\fR
+    \fBexecute&...&\fR
+    \fBexecute*...*\fR
+    \fBexecute;...;\fR
+    \fBexecute/.../\fR
+    \fBexecute|...|\fR
+    \fBexecute:...\fR
+.RS
+This is the special form that frees you from parse errors as it does not expect
+the closing character. The catch is that it should be the last one in the
+comma-separated list.
+.RE
+.RE
+.TP
+.BI "--history=" "HISTORY_FILE"
+Load search history from the specified file and update the file on completion.
+When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
+\fBnext-history\fR and \fBprevious-history\fR.
+.TP
+.BI "--history-size=" "N"
+Maximum number of entries in the history file (default: 1000). The file is
+automatically truncated when the number of the lines exceeds the value.
+.TP
+.BI "--header-file=" "FILE"
+The content of the file will be printed as the sticky header. The lines in the
+file are displayed in order from top to bottom regardless of \fB--reverse\fR,
+and are not affected by \fB--with-nth\fR. ANSI color codes are processed even
+when \fB--ansi\fR is not set.
+.TP
+.BI "--header-lines=" "N"
+The first N lines of the input are treated as the sticky header. When
+\fB--with-nth\fR is set, the lines are transformed just like the other
+lines that follow.
+.SS Scripting
+.TP
+.BI "-q, --query=" "STR"
+Start the finder with the given query
+.TP
+.B "-1, --select-1"
+Automatically select the only match
+.TP
+.B "-0, --exit-0"
+Exit immediately when there's no match
+.TP
+.BI "-f, --filter=" "STR"
+Filter mode. Do not start interactive finder. When used with \fB--no-sort\fR,
+fzf becomes a fuzzy-version of grep.
+.TP
+.B "--print-query"
+Print query as the first line
+.TP
+.BI "--expect=" "KEY[,..]"
+Comma-separated list of keys that can be used to complete fzf in addition to
+the default enter key. When this option is set, fzf will print the name of the
+key pressed as the first line of its output (or as the second line if
+\fB--print-query\fR is also used). The line will be empty if fzf is completed
+with the default enter key.
+.RS
+e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
+.RE
+.TP
+.B "--sync"
+Synchronous search for multi-staged filtering. If specified, fzf will launch
+ncurses finder only after the input stream is complete.
+.RS
+e.g. \fBfzf --multi | fzf --sync\fR
+.RE
+
+.SH ENVIRONMENT
+.TP
+.B FZF_DEFAULT_COMMAND
+Default command to use when input is tty
+.TP
+.B FZF_DEFAULT_OPTS
+Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
+
+.SH EXIT STATUS
+.BR 0 "      Normal exit"
+.br
+.BR 1 "      Interrupted with \fBCTRL-C\fR or \fBESC\fR"
+
+.SH FIELD INDEX EXPRESSION
+
+A field index expression can be a non-zero integer or a range expression
+([BEGIN]..[END]). \fB--nth\fR and \fB--with-nth\fR take a comma-separated list
+of field index expressions.
+
+.SS Examples
+.BR 1 "      The 1st field"
+.br
+.BR 2 "      The 2nd field"
+.br
+.BR -1 "     The last field"
+.br
+.BR -2 "     The 2nd to last field"
+.br
+.BR 3..5 "   From the 3rd field to the 5th field"
+.br
+.BR 2.. "    From the 2nd field to the last field"
+.br
+.BR ..-3 "   From the 1st field to the 3rd to the last field"
+.br
+.BR .. "     All the fields"
+.br
+
+.SH EXTENDED SEARCH MODE
+
+With \fB-x\fR or \fB--extended\fR option, fzf will start in "extended-search
+mode". In this mode, you can specify multiple patterns delimited by spaces,
+such as: \fB'wild ^music .mp3$ sbtrkt !rmx\fR
+
+.SS Exact-match (quoted)
+A term that is prefixed by a single-quote character (') is interpreted as an
+"exact-match" (or "non-fuzzy") term. fzf will search for the exact occurrences
+of the string.
+
+.SS Anchored-match
+A term can be prefixed by ^, or suffixed by $ to become an anchored-match term.
+Then fzf will search for the items that start with or end with the given
+string. An anchored-match term is also an exact-match term.
+
+.SS Negation
+If a term is prefixed by !, fzf will exclude the items that satisfy the term
+from the result.
+
+.SS Extended-exact mode
+If you don't need fuzzy matching at all and do not wish to "quote" (prefixing
+with ') every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
+(instead of \fB-x\fR or \fB--extended\fR).
+
+.SH AUTHOR
+Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
+
+.SH SEE ALSO
+.I https://github.com/junegunn/fzf
+
+.SH LICENSE
+MIT

plugin/fzf.vim

@@ -21,32 +21,41 @@
 " OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 " WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-let s:min_tmux_width  = 10
-let s:min_tmux_height = 3
-let s:default_tmux_height = '40%'
-let s:launcher = 'xterm -e bash -ic %s'
+let s:default_height = '40%'
 let s:fzf_go = expand('<sfile>:h:h').'/bin/fzf'
-let s:fzf_rb = expand('<sfile>:h:h').'/fzf'
+let s:install = expand('<sfile>:h:h').'/install'
+let s:installed = 0
+let s:fzf_tmux = expand('<sfile>:h:h').'/bin/fzf-tmux'
 
 let s:cpo_save = &cpo
 set cpo&vim
 
 function! s:fzf_exec()
   if !exists('s:exec')
-    call system('type fzf')
-    if v:shell_error
-      let s:exec = executable(s:fzf_go) ?
-            \ s:fzf_go : (executable(s:fzf_rb) ? s:fzf_rb : '')
-    else
+    if executable(s:fzf_go)
+      let s:exec = s:fzf_go
+    elseif executable('fzf')
       let s:exec = 'fzf'
+    elseif !s:installed && executable(s:install) &&
+          \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
+      redraw
+      echo
+      echohl WarningMsg
+      echo 'Downloading fzf binary. Please wait ...'
+      echohl None
+      let s:installed = 1
+      call system(s:install.' --bin')
+      return s:fzf_exec()
+    else
+      redraw
+      throw 'fzf executable not found'
     endif
-    return s:fzf_exec()
-  elseif empty(s:exec)
-    unlet s:exec
-    throw 'fzf executable not found'
-  else
-    return s:exec
   endif
+  return s:exec
+endfunction
+
+function! s:tmux_not_zoomed()
+  return system('tmux list-panes -F "#F"') !~# 'Z'
 endfunction
 
 function! s:tmux_enabled()
@@ -55,15 +64,15 @@ function! s:tmux_enabled()
   endif
 
   if exists('s:tmux')
-    return s:tmux
+    return s:tmux && s:tmux_not_zoomed()
   endif
 
   let s:tmux = 0
-  if exists('$TMUX')
+  if exists('$TMUX') && executable(s:fzf_tmux)
     let output = system('tmux -V')
     let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   endif
-  return s:tmux
+  return s:tmux && s:tmux_not_zoomed()
 endfunction
 
 function! s:shellesc(arg)
@@ -71,11 +80,35 @@ function! s:shellesc(arg)
 endfunction
 
 function! s:escape(path)
-  return substitute(a:path, ' ', '\\ ', 'g')
+  return escape(a: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! fzf#run(...) abort
-  let dict   = exists('a:1') ? a:1 : {}
+try
+  let oshell = &shell
+  set shell=sh
+  if has('nvim') && bufexists('term://*:FZF')
+    echohl WarningMsg
+    echomsg 'FZF is already running!'
+    echohl None
+    return []
+  endif
+  let dict   = exists('a:1') ? s:upgrade(a:1) : {}
   let temps  = { 'result': tempname() }
   let optstr = get(dict, 'options', '')
   try
@@ -99,26 +132,62 @@ function! fzf#run(...) abort
   else
     let prefix = ''
   endif
-  let command = prefix.fzf_exec.' '.optstr.' > '.temps.result
+  let tmux = !has('nvim') && s:tmux_enabled() && s:splittable(dict)
+  let command = prefix.(tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
 
-  if s:tmux_enabled() && s:tmux_splittable(dict)
-    return s:execute_tmux(dict, command, temps)
-  else
-    return s:execute(dict, command, temps)
-  endif
+  try
+    if tmux
+      return s:execute_tmux(dict, command, temps)
+    elseif has('nvim')
+      return s:execute_term(dict, command, temps)
+    else
+      return s:execute(dict, command, temps)
+    endif
+  finally
+    call s:popd(dict)
+  endtry
+finally
+  let &shell = oshell
+endtry
 endfunction
 
-function! s:tmux_splittable(dict)
-  return
-  \ min([&columns, get(a:dict, 'tmux_width', 0)]) >= s:min_tmux_width ||
-  \ min([&lines, get(a:dict, 'tmux_height', get(a:dict, 'tmux', 0))]) >= s:min_tmux_height
+function! s:present(dict, ...)
+  for key in a:000
+    if !empty(get(a:dict, key, ''))
+      return 1
+    endif
+  endfor
+  return 0
+endfunction
+
+function! s:fzf_tmux(dict)
+  let size = ''
+  for o in ['up', 'down', 'left', 'right']
+    if s:present(a:dict, o)
+      let size = '-'.o[0].(a:dict[o] == 1 ? '' : a:dict[o])
+      break
+    endif
+  endfor
+  return printf('LINES=%d COLUMNS=%d %s %s %s --',
+    \ &lines, &columns, s:fzf_tmux, size, (has_key(a:dict, 'source') ? '' : '-'))
+endfunction
+
+function! s:splittable(dict)
+  return s:present(a:dict, 'up', 'down', 'left', 'right')
 endfunction
 
 function! s:pushd(dict)
-  if !empty(get(a:dict, 'dir', ''))
-    let a:dict.prev_dir = getcwd()
+  if s:present(a:dict, 'dir')
+    let cwd = getcwd()
+    if get(a:dict, 'prev_dir', '') ==# cwd
+      return 1
+    endif
+    let a:dict.prev_dir = cwd
     execute 'chdir '.s:escape(a:dict.dir)
+    let a:dict.dir = getcwd()
+    return 1
   endif
+  return 0
 endfunction
 
 function! s:popd(dict)
@@ -127,12 +196,25 @@ function! s:popd(dict)
   endif
 endfunction
 
+function! s:xterm_launcher()
+  let fmt = 'xterm -T "[fzf]" -bg "\%s" -fg "\%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
+  if has('gui_macvim')
+    let fmt .= '; osascript -e "tell application \"MacVim\" to activate"'
+  endif
+  return printf(fmt,
+    \ synIDattr(hlID("Normal"), "bg"), synIDattr(hlID("Normal"), "fg"),
+    \ &columns, &lines/2, getwinposx(), getwinposy())
+endfunction
+unlet! s:launcher
+let s:launcher = function('s:xterm_launcher')
+
 function! s:execute(dict, command, temps)
   call s:pushd(a:dict)
-  silent !clear
+  silent! !clear 2> /dev/null
   if has('gui_running')
-    let launcher = get(a:dict, 'launcher', get(g:, 'fzf_launcher', s:launcher))
-    let command = printf(launcher, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
+    let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
+    let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
+    let command = printf(fmt, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
   else
     let command = a:command
   endif
@@ -146,105 +228,171 @@ function! s:execute(dict, command, temps)
     endif
     return []
   else
-    return s:callback(a:dict, a:temps, 0)
-  endif
-endfunction
-
-function! s:env_var(name)
-  if exists('$'.a:name)
-    return a:name . "='". substitute(expand('$'.a:name), "'", "'\\\\''", 'g') . "' "
-  else
-    return ''
+    return s:callback(a:dict, a:temps)
   endif
 endfunction
 
 function! s:execute_tmux(dict, command, temps)
-  let command = s:env_var('FZF_DEFAULT_OPTS').s:env_var('FZF_DEFAULT_COMMAND').a:command
-  if !empty(get(a:dict, 'dir', ''))
+  let command = a:command
+  if s:pushd(a:dict)
+    " -c '#{pane_current_path}' is only available on tmux 1.9 or above
     let command = 'cd '.s:escape(a:dict.dir).' && '.command
   endif
 
-  let splitopt = '-v'
-  if has_key(a:dict, 'tmux_width')
-    let splitopt = '-h'
-    let size = a:dict.tmux_width
-  else
-    let size = get(a:dict, 'tmux_height', get(a:dict, 'tmux'))
-  endif
-
-  if type(size) == 1 && size =~ '%$'
-    let sizeopt = '-p '.size[0:-2]
-  else
-    let sizeopt = '-l '.size
-  endif
-
-  let s:pane = substitute(
-    \ system(
-      \ printf(
-        \ 'tmux split-window %s %s -P -F "#{pane_id}" %s',
-        \ splitopt, sizeopt, s:shellesc(command))), '\n', '', 'g')
-  let s:dict = a:dict
-  let s:temps = a:temps
-
-  augroup fzf_tmux
-    autocmd!
-    autocmd VimResized * nested call s:tmux_check()
-  augroup END
+  call system(command)
+  redraw!
+  return s:callback(a:dict, a:temps)
 endfunction
 
-function! s:tmux_check()
-  let panes = split(system('tmux list-panes -a -F "#{pane_id}"'), '\n')
-
-  if index(panes, s:pane) < 0
-    augroup fzf_tmux
-      autocmd!
-    augroup END
-
-    call s:callback(s:dict, s:temps, 1)
-    redraw
+function! s:calc_size(max, val)
+  if a:val =~ '%$'
+    return a:max * str2nr(a:val[:-2]) / 100
+  else
+    return min([a:max, a:val])
   endif
 endfunction
 
-function! s:callback(dict, temps, cd)
+function! s:getpos()
+  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$')}
+endfunction
+
+function! s:split(dict)
+  let directions = {
+  \ 'up':    ['topleft', 'resize', &lines],
+  \ 'down':  ['botright', 'resize', &lines],
+  \ 'left':  ['vertical topleft', 'vertical resize', &columns],
+  \ 'right': ['vertical botright', 'vertical resize', &columns] }
+  let s:ppos = s:getpos()
+  try
+    for [dir, triple] in items(directions)
+      let val = get(a:dict, dir, '')
+      if !empty(val)
+        let [cmd, resz, max] = triple
+        let sz = s:calc_size(max, val)
+        execute cmd sz.'new'
+        execute resz sz
+        return
+      endif
+    endfor
+    if s:present(a:dict, 'window')
+      execute a:dict.window
+    else
+      tabnew
+    endif
+  finally
+    setlocal winfixwidth winfixheight buftype=nofile bufhidden=wipe nobuflisted
+  endtry
+endfunction
+
+function! s:execute_term(dict, command, temps)
+  call s:split(a:dict)
+  call s:pushd(a:dict)
+
+  let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
+  function! fzf.on_exit(id, code)
+    let pos = s:getpos()
+    let inplace = pos == s:ppos " {'window': 'enew'}
+    if !inplace
+      if bufnr('') == self.buf
+        " We use close instead of bd! since Vim does not close the split when
+        " there's no other listed buffer (nvim +'set nobuflisted')
+        close
+      endif
+      if pos.tab == s:ppos.tab
+        wincmd p
+      endif
+    endif
+    call s:pushd(self.dict)
+    try
+      redraw!
+      call s:callback(self.dict, self.temps)
+
+      if inplace && bufnr('') == self.buf
+        execute "normal! \<c-^>"
+        " No other listed buffer
+        if bufnr('') == self.buf
+          bd!
+        endif
+      endif
+    finally
+      call s:popd(self.dict)
+    endtry
+  endfunction
+
+  call termopen(a:command, fzf)
+  startinsert
+  return []
+endfunction
+
+function! s:callback(dict, temps)
+try
   if !filereadable(a:temps.result)
     let lines = []
   else
-    if a:cd | call s:pushd(a:dict) | endif
-
     let lines = readfile(a:temps.result)
     if has_key(a:dict, 'sink')
       for line in lines
         if type(a:dict.sink) == 2
           call a:dict.sink(line)
         else
-          execute a:dict.sink.' '.s:escape(line)
+          execute a:dict.sink s:escape(line)
         endif
       endfor
     endif
+    if has_key(a:dict, 'sink*')
+      call a:dict['sink*'](lines)
+    endif
   endif
 
   for tf in values(a:temps)
     silent! call delete(tf)
   endfor
 
-  call s:popd(a:dict)
-
   return lines
+catch
+  if stridx(v:exception, ':E325:') < 0
+    echoerr v:exception
+  endif
+endtry
+endfunction
+
+let s:default_action = {
+  \ 'ctrl-m': 'e',
+  \ 'ctrl-t': 'tabedit',
+  \ 'ctrl-x': 'split',
+  \ 'ctrl-v': 'vsplit' }
+
+function! s:cmd_callback(lines) abort
+  if empty(a:lines)
+    return
+  endif
+  let key = remove(a:lines, 0)
+  let cmd = get(s:action, key, 'e')
+  try
+    let autochdir = &autochdir
+    set noautochdir
+    for item in a:lines
+      execute cmd s:escape(item)
+    endfor
+  finally
+    let &autochdir = autochdir
+  endtry
 endfunction
 
 function! s:cmd(bang, ...) abort
-  let args = copy(a:000)
+  let s:action = get(g:, 'fzf_action', s:default_action)
+  let args = extend(['--expect='.join(keys(s:action), ',')], a:000)
   let opts = {}
   if len(args) > 0 && isdirectory(expand(args[-1]))
     let opts.dir = remove(args, -1)
   endif
   if !a:bang
-    let opts.tmux = get(g:, 'fzf_tmux_height', s:default_tmux_height)
+    let opts.down = get(g:, 'fzf_height', get(g:, 'fzf_tmux_height', s:default_height))
   endif
-  call fzf#run(extend({ 'sink': 'e', 'options': join(args) }, opts))
+  call fzf#run(extend({'options': join(args), 'sink*': function('<sid>cmd_callback')}, opts))
 endfunction
 
-command! -nargs=* -complete=dir -bang FZF call s:cmd('<bang>' == '!', <f-args>)
+command! -nargs=* -complete=dir -bang FZF call s:cmd(<bang>0, <f-args>)
 
 let &cpo = s:cpo_save
 unlet s:cpo_save

shell/completion.bash

@@ -5,6 +5,8 @@
 #  / __/ / /_/ __/
 # /_/   /___/_/-completion.bash
 #
+# - $FZF_TMUX               (default: 1)
+# - $FZF_TMUX_HEIGHT        (default: '40%')
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
@@ -24,23 +26,44 @@ _fzf_opts_completion() {
     -i +i
     -n --nth
     -d --delimiter
-    -s --sort +s
+    +s --no-sort
+    --tac
+    --tiebreak
+    --bind
     -m --multi
     --no-mouse
-    +c --no-color
-    +2 --no-256
+    --color
     --black
     --reverse
+    --no-hscroll
+    --inline-info
     --prompt
     -q --query
     -1 --select-1
     -0 --exit-0
     -f --filter
-    --print-query"
+    --print-query
+    --expect
+    --toggle-sort
+    --sync
+    --cycle
+    --history
+    --history-size
+    --header-file
+    --header-lines
+    --margin"
 
   case "${prev}" in
-  --sort|-s)
-    COMPREPLY=( $(compgen -W "$(seq 2000 1000 10000)" -- ${cur}) )
+  --tiebreak)
+    COMPREPLY=( $(compgen -W "length begin end index" -- ${cur}) )
+    return 0
+    ;;
+  --color)
+    COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
+    return 0
+    ;;
+  --history|--header-file)
+    COMPREPLY=()
     return 0
     ;;
   esac
@@ -54,9 +77,10 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig ret
+  local cmd orig ret orig_cmd
   cmd="$1"
   shift
+  orig_cmd="$1"
 
   orig=$(eval "echo \$_fzf_orig_completion_$cmd")
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
@@ -64,17 +88,18 @@ _fzf_handle_dynamic_completion() {
   elif [ -n "$_fzf_completion_loader" ]; then
     _completion_loader "$@"
     ret=$?
-    eval $(complete | \grep "\-F.* $cmd$" | _fzf_orig_completion_filter)
+    eval $(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)
     source $BASH_SOURCE
     return $ret
   fi
 }
 
 _fzf_path_completion() {
-  local cur base dir leftover matches trigger cmd
+  local cur base dir leftover matches trigger cmd fzf
+  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
   cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
   COMPREPLY=()
-  trigger=${FZF_COMPLETION_TRIGGER:-**}
+  trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
   if [[ ${cur} == *"$trigger" ]]; then
     base=${cur:0:${#cur}-${#trigger}}
@@ -87,7 +112,7 @@ _fzf_path_completion() {
         leftover=${leftover/#\/}
         [ "$dir" = './' ] && dir=''
         tput sc
-        matches=$(find -L "$dir"* $1 2> /dev/null | fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
+        matches=$(find -L "$dir"* $1 2> /dev/null | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
@@ -111,16 +136,17 @@ _fzf_path_completion() {
 }
 
 _fzf_list_completion() {
-  local cur selected trigger cmd src
+  local cur selected trigger cmd src fzf
+  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
   read -r src
   cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
-  trigger=${FZF_COMPLETION_TRIGGER:-**}
+  trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
   if [[ ${cur} == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
     tput sc
-    selected=$(eval "$src | fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
+    selected=$(eval "$src | $fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
     selected=${selected% }
     tput rc
 
@@ -155,9 +181,10 @@ _fzf_dir_completion() {
 _fzf_kill_completion() {
   [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
 
-  local selected
+  local selected fzf
+  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
   tput sc
-  selected=$(ps -ef | sed 1d | fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
+  selected=$(ps -ef | sed 1d | $fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
   tput rc
 
   if [ -n "$selected" ]; then
@@ -168,13 +195,13 @@ _fzf_kill_completion() {
 
 _fzf_telnet_completion() {
   _fzf_list_completion '+m' "$@" << "EOF"
-  \grep -v '^\s*\(#\|$\)' /etc/hosts | awk '{if (length($2) > 0) {print $2}}' | sort -u
+  \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
 EOF
 }
 
 _fzf_ssh_completion() {
   _fzf_list_completion '+m' "$@" << "EOF"
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i ^host | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts) | awk '{print $2}' | sort -u
+    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
 EOF
 }
 
@@ -191,7 +218,7 @@ EOF
 }
 
 # fzf options
-complete -F _fzf_opts_completion fzf
+complete -o default -F _fzf_opts_completion fzf
 
 d_cmds="cd pushd rmdir"
 f_cmds="
@@ -207,11 +234,11 @@ a_cmds="
 x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-if [ "$_fzf_completion_loaded" != '0.8.6-1' ]; then
+if [ "$_fzf_completion_loaded" != '0.9.12' ]; then
   # Really wish I could use associative array but OSX comes with bash 3.2 :(
   eval $(complete | \grep '\-F' | \grep -v _fzf_ |
     \grep -E " ($(echo $d_cmds $f_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
-  export _fzf_completion_loaded=0.8.6-1
+  export _fzf_completion_loaded=0.9.12
 fi
 
 if type _completion_loader > /dev/null 2>&1; then

shell/completion.zsh

@@ -0,0 +1,158 @@
+#!/bin/zsh
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/-completion.zsh
+#
+# - $FZF_TMUX               (default: 1)
+# - $FZF_TMUX_HEIGHT        (default: '40%')
+# - $FZF_COMPLETION_TRIGGER (default: '**')
+# - $FZF_COMPLETION_OPTS    (default: empty)
+
+_fzf_path_completion() {
+  local base lbuf find_opts fzf_opts suffix tail fzf dir leftover matches nnm
+  base=${(Q)1}
+  lbuf=$2
+  find_opts=$3
+  fzf_opts=$4
+  suffix=$5
+  tail=$6
+  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+
+  if ! setopt | grep nonomatch > /dev/null; then
+    nnm=1
+    setopt nonomatch
+  fi
+  dir="$base"
+  while [ 1 ]; do
+    if [ -z "$dir" -o -d ${~dir} ]; then
+      leftover=${base/#"$dir"}
+      leftover=${leftover/#\/}
+      [ "$dir" = './' ] && dir=''
+      dir=${~dir}
+      matches=$(\find -L $dir* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
+        printf "%q$suffix " "$item"
+      done)
+      matches=${matches% }
+      if [ -n "$matches" ]; then
+        LBUFFER="$lbuf$matches$tail"
+      fi
+      zle redisplay
+      break
+    fi
+    dir=$(dirname "$dir")
+    dir=${dir%/}/
+  done
+  [ -n "$nnm" ] && unsetopt nonomatch
+}
+
+_fzf_all_completion() {
+  _fzf_path_completion "$1" "$2" \
+    "-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
+    "-m" "" " "
+}
+
+_fzf_dir_completion() {
+  _fzf_path_completion "$1" "$2" \
+    "-name .git -prune -o -name .svn -prune -o -type d -print" \
+    "" "/" ""
+}
+
+_fzf_list_completion() {
+  local prefix lbuf fzf_opts src fzf matches
+  prefix=$1
+  lbuf=$2
+  fzf_opts=$3
+  read -r src
+  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+
+  matches=$(eval "$src" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$prefix")
+  if [ -n "$matches" ]; then
+    LBUFFER="$lbuf$matches "
+  fi
+  zle redisplay
+}
+
+_fzf_telnet_completion() {
+  _fzf_list_completion "$1" "$2" '+m' << "EOF"
+  \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
+EOF
+}
+
+_fzf_ssh_completion() {
+  _fzf_list_completion "$1" "$2" '+m' << "EOF"
+    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
+EOF
+}
+
+_fzf_env_var_completion() {
+  _fzf_list_completion "$1" "$2" '+m' << "EOF"
+  declare -xp | sed 's/=.*//' | sed 's/.* //'
+EOF
+}
+
+_fzf_alias_completion() {
+  _fzf_list_completion "$1" "$2" '+m' << "EOF"
+  alias | sed 's/=.*//'
+EOF
+}
+
+fzf-completion() {
+  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+
+  # http://zsh.sourceforge.net/FAQ/zshfaq03.html
+  # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
+  tokens=(${(z)LBUFFER})
+  if [ ${#tokens} -lt 1 ]; then
+    eval "zle ${fzf_default_completion:-expand-or-complete}"
+    return
+  fi
+
+  cmd=${tokens[1]}
+
+  # Explicitly allow for empty trigger.
+  trigger=${FZF_COMPLETION_TRIGGER-'**'}
+  [ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
+
+  tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
+  # Kill completion (do not require trigger sequence)
+  if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
+    [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+    matches=$(ps -ef | sed 1d | ${=fzf} ${=FZF_COMPLETION_OPTS} -m | awk '{print $2}' | tr '\n' ' ')
+    if [ -n "$matches" ]; then
+      LBUFFER="$LBUFFER$matches"
+    fi
+    zle redisplay
+  # Trigger sequence given
+  elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
+    d_cmds=(cd pushd rmdir)
+
+    [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
+    [ -z "${tokens[-1]}" ] && lbuf=$LBUFFER        || lbuf=${LBUFFER:0:-${#tokens[-1]}}
+
+    if [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
+      _fzf_dir_completion "$prefix" $lbuf
+    elif [ $cmd = telnet ]; then
+      _fzf_telnet_completion "$prefix" $lbuf
+    elif [ $cmd = ssh ]; then
+      _fzf_ssh_completion "$prefix" $lbuf
+    elif [ $cmd = unset -o $cmd = export ]; then
+      _fzf_env_var_completion "$prefix" $lbuf
+    elif [ $cmd = unalias ]; then
+      _fzf_alias_completion "$prefix" $lbuf
+    else
+      _fzf_all_completion "$prefix" $lbuf
+    fi
+  # Fall back to default completion
+  else
+    eval "zle ${fzf_default_completion:-expand-or-complete}"
+  fi
+}
+
+[ -z "$fzf_default_completion" ] &&
+  fzf_default_completion=$(bindkey '^I' | grep -v undefined-key | awk '{print $2}')
+
+zle     -N   fzf-completion
+bindkey '^I' fzf-completion
+

shell/key-bindings.bash

@@ -0,0 +1,96 @@
+# Key bindings
+# ------------
+__fzf_select__() {
+  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type f -print \
+    -o -type d -print \
+    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+  eval "$cmd" | fzf -m | while read item; do
+    printf '%q ' "$item"
+  done
+  echo
+}
+
+if [[ $- =~ i ]]; then
+
+__fzfcmd() {
+  [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${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_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") bash -c 'source ~/.fzf.bash; tmux send-keys -t $TMUX_PANE \"\$(__fzf_select__)\"'"
+}
+
+__fzf_cd__() {
+  local dir
+  dir=$(command \find -L ${1:-.} \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | $(__fzfcmd) +m) && printf 'cd %q' "$dir"
+}
+
+__fzf_history__() (
+  local line
+  shopt -u nocaseglob nocasematch
+  line=$(
+    HISTTIMEFORMAT= history |
+    $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r |
+    \grep '^ *[0-9]') &&
+    if [[ $- =~ H ]]; then
+      sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
+    else
+      sed 's/^ *\([0-9]*\)\** *//' <<< "$line"
+    fi
+)
+
+__use_tmux=0
+[ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1
+
+if [ -z "$(set -o | \grep '^vi.*on')" ]; then
+  # Required to refresh the prompt after fzf
+  bind '"\er": redraw-current-line'
+  bind '"\e^": history-expand-line'
+
+  # CTRL-T - Paste the selected file path into the command line
+  if [ $__use_tmux -eq 1 ]; then
+    bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select_tmux__)\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
+  else
+    bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select__)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
+  fi
+
+  # CTRL-R - Paste the selected command from history into the command line
+  bind '"\C-r": " \C-e\C-u$(__fzf_history__)\e\C-e\e^\er"'
+
+  # ALT-C - cd into the selected directory
+  bind '"\ec": " \C-e\C-u$(__fzf_cd__)\e\C-e\er\C-m"'
+else
+  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 [ $__use_tmux -eq 1 ]; then
+    bind '"\C-t": "\e$a \eddi$(__fzf_select_tmux__)\C-x\C-e\e0P$xa"'
+  else
+    bind '"\C-t": "\e$a \eddi$(__fzf_select__)\C-x\C-e\e0Px$a \C-x\C-r\exa "'
+  fi
+  bind -m vi-command '"\C-t": "i\C-t"'
+
+  # CTRL-R - Paste the selected command from history into the command line
+  bind '"\C-r": "\eddi$(__fzf_history__)\C-x\C-e\C-x^\e$a\C-x\C-r"'
+  bind -m vi-command '"\C-r": "i\C-r"'
+
+  # ALT-C - cd into the selected directory
+  bind '"\ec": "\eddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
+  bind -m vi-command '"\ec": "i\ec"'
+fi
+
+unset __use_tmux
+
+fi

shell/key-bindings.fish

@@ -0,0 +1,69 @@
+# Key bindings
+# ------------
+function fzf_key_bindings
+  # Due to a bug of fish, we cannot use command substitution,
+  # so we use temporary file instead
+  if [ -z "$TMPDIR" ]
+    set -g TMPDIR /tmp
+  end
+
+  function __fzf_escape
+    while read item
+      echo -n (echo -n "$item" | sed -E 's/([ "$~'\''([{<>})])/\\\\\\1/g')' '
+    end
+  end
+
+  function __fzf_ctrl_t
+    set -q FZF_CTRL_T_COMMAND; or set -l FZF_CTRL_T_COMMAND "
+    command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+      -o -type f -print \
+      -o -type d -print \
+      -o -type l -print 2> /dev/null | sed 1d | cut -b3-"
+    eval $FZF_CTRL_T_COMMAND | eval (__fzfcmd) -m > $TMPDIR/fzf.result
+    and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
+    commandline -f repaint
+    rm -f $TMPDIR/fzf.result
+  end
+
+  function __fzf_ctrl_r
+    history | eval (__fzfcmd) +s +m --tiebreak=index --toggle-sort=ctrl-r > $TMPDIR/fzf.result
+    and commandline (cat $TMPDIR/fzf.result)
+    commandline -f repaint
+    rm -f $TMPDIR/fzf.result
+  end
+
+  function __fzf_alt_c
+    # Fish hangs if the command before pipe redirects (2> /dev/null)
+    command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) \
+      -prune -o -type d -print 2> /dev/null | sed 1d | cut -b3- | eval (__fzfcmd) +m > $TMPDIR/fzf.result
+    [ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
+    and cd (cat $TMPDIR/fzf.result)
+    commandline -f repaint
+    rm -f $TMPDIR/fzf.result
+  end
+
+  function __fzfcmd
+    set -q FZF_TMUX; or set FZF_TMUX 1
+
+    if [ $FZF_TMUX -eq 1 ]
+      if set -q FZF_TMUX_HEIGHT
+        echo "fzf-tmux -d$FZF_TMUX_HEIGHT"
+      else
+        echo "fzf-tmux -d40%"
+      end
+    else
+      echo "fzf"
+    end
+  end
+
+  bind \ct '__fzf_ctrl_t'
+  bind \cr '__fzf_ctrl_r'
+  bind \ec '__fzf_alt_c'
+
+  if bind -M insert > /dev/null 2>&1
+    bind -M insert \ct '__fzf_ctrl_t'
+    bind -M insert \cr '__fzf_ctrl_r'
+    bind -M insert \ec '__fzf_alt_c'
+  end
+end
+

shell/key-bindings.zsh

@@ -0,0 +1,52 @@
+# Key bindings
+# ------------
+if [[ $- =~ i ]]; then
+
+# CTRL-T - Paste the selected file path(s) into the command line
+__fsel() {
+  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type f -print \
+    -o -type d -print \
+    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+  eval "$cmd" | $(__fzfcmd) -m | while read item; do
+    printf '%q ' "$item"
+  done
+  echo
+}
+
+__fzfcmd() {
+  [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+}
+
+fzf-file-widget() {
+  LBUFFER="${LBUFFER}$(__fsel)"
+  zle redisplay
+}
+zle     -N   fzf-file-widget
+bindkey '^T' fzf-file-widget
+
+# ALT-C - cd into the selected directory
+fzf-cd-widget() {
+  cd "${$(command \find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | $(__fzfcmd) +m):-.}"
+  zle reset-prompt
+}
+zle     -N    fzf-cd-widget
+bindkey '\ec' fzf-cd-widget
+
+# CTRL-R - Paste the selected command from history into the command line
+fzf-history-widget() {
+  local selected restore_no_bang_hist
+  if selected=( $(fc -l 1 | $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r -q "$LBUFFER") ); then
+    num=$selected[1]
+    if [ -n "$num" ]; then
+      zle vi-fetch-history -n $num
+    fi
+  fi
+  zle redisplay
+}
+zle     -N   fzf-history-widget
+bindkey '^R' fzf-history-widget
+
+fi
+

src/algo/algo.go

@@ -1,6 +1,11 @@
 package algo
 
-import "strings"
+import (
+	"strings"
+	"unicode"
+
+	"github.com/junegunn/fzf/src/util"
+)
 
 /*
  * String matching algorithms here do not use strings.ToLower to avoid
@@ -11,8 +16,10 @@ import "strings"
  */
 
 // FuzzyMatch performs fuzzy-match
-func FuzzyMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
-	runes := []rune(*input)
+func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+	if len(pattern) == 0 {
+		return 0, 0
+	}
 
 	// 0. (FIXME) How to find the shortest match?
 	//    a_____b__c__abc
@@ -30,8 +37,15 @@ func FuzzyMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 	for index, char := range runes {
 		// This is considerably faster than blindly applying strings.ToLower to the
 		// whole string
-		if !caseSensitive && char >= 65 && char <= 90 {
-			char += 32
+		if !caseSensitive {
+			// Partially inlining `unicode.ToLower`. Ugly, but makes a noticeable
+			// difference in CPU cost. (Measured on Go 1.4.1. Also note that the Go
+			// compiler as of now does not inline non-leaf functions.)
+			if char >= 'A' && char <= 'Z' {
+				char += 32
+			} else if char > unicode.MaxASCII {
+				char = unicode.To(unicode.LowerCase, char)
+			}
 		}
 		if char == pattern[pidx] {
 			if sidx < 0 {
@@ -48,8 +62,12 @@ func FuzzyMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 		pidx--
 		for index := eidx - 1; index >= sidx; index-- {
 			char := runes[index]
-			if !caseSensitive && char >= 65 && char <= 90 {
-				char += 32
+			if !caseSensitive {
+				if char >= 'A' && char <= 'Z' {
+					char += 32
+				} else if char > unicode.MaxASCII {
+					char = unicode.To(unicode.LowerCase, char)
+				}
 			}
 			if char == pattern[pidx] {
 				if pidx--; pidx < 0 {
@@ -63,23 +81,6 @@ func FuzzyMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 	return -1, -1
 }
 
-// ExactMatchStrings performs exact-match using strings package.
-// Currently not used.
-func ExactMatchStrings(caseSensitive bool, input *string, pattern []rune) (int, int) {
-	var str string
-	if caseSensitive {
-		str = *input
-	} else {
-		str = strings.ToLower(*input)
-	}
-
-	if idx := strings.Index(str, string(pattern)); idx >= 0 {
-		prefixRuneLen := len([]rune((*input)[:idx]))
-		return prefixRuneLen, prefixRuneLen + len(pattern)
-	}
-	return -1, -1
-}
-
 // ExactMatchNaive is a basic string searching algorithm that handles case
 // sensitivity. Although naive, it still performs better than the combination
 // of strings.ToLower + strings.Index for typical fzf use cases where input
@@ -87,8 +88,11 @@ func ExactMatchStrings(caseSensitive bool, input *string, pattern []rune) (int,
 //
 // We might try to implement better algorithms in the future:
 // http://en.wikipedia.org/wiki/String_searching_algorithm
-func ExactMatchNaive(caseSensitive bool, input *string, pattern []rune) (int, int) {
-	runes := []rune(*input)
+func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+	if len(pattern) == 0 {
+		return 0, 0
+	}
+
 	numRunes := len(runes)
 	plen := len(pattern)
 	if numRunes < plen {
@@ -98,8 +102,12 @@ func ExactMatchNaive(caseSensitive bool, input *string, pattern []rune) (int, in
 	pidx := 0
 	for index := 0; index < numRunes; index++ {
 		char := runes[index]
-		if !caseSensitive && char >= 65 && char <= 90 {
-			char += 32
+		if !caseSensitive {
+			if char >= 'A' && char <= 'Z' {
+				char += 32
+			} else if char > unicode.MaxASCII {
+				char = unicode.To(unicode.LowerCase, char)
+			}
 		}
 		if pattern[pidx] == char {
 			pidx++
@@ -115,16 +123,15 @@ func ExactMatchNaive(caseSensitive bool, input *string, pattern []rune) (int, in
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
-	runes := []rune(*input)
+func PrefixMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	if len(runes) < len(pattern) {
 		return -1, -1
 	}
 
 	for index, r := range pattern {
 		char := runes[index]
-		if !caseSensitive && char >= 65 && char <= 90 {
-			char += 32
+		if !caseSensitive {
+			char = unicode.ToLower(char)
 		}
 		if char != r {
 			return -1, -1
@@ -134,8 +141,8 @@ func PrefixMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 }
 
 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
-	runes := []rune(strings.TrimRight(*input, " "))
+func SuffixMatch(caseSensitive bool, input []rune, pattern []rune) (int, int) {
+	runes := util.TrimRight(input)
 	trimmedLen := len(runes)
 	diff := trimmedLen - len(pattern)
 	if diff < 0 {
@@ -144,8 +151,8 @@ func SuffixMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 
 	for index, r := range pattern {
 		char := runes[index+diff]
-		if !caseSensitive && char >= 65 && char <= 90 {
-			char += 32
+		if !caseSensitive {
+			char = unicode.ToLower(char)
 		}
 		if char != r {
 			return -1, -1
@@ -153,3 +160,18 @@ func SuffixMatch(caseSensitive bool, input *string, pattern []rune) (int, int) {
 	}
 	return trimmedLen - len(pattern), trimmedLen
 }
+
+// EqualMatch performs equal-match
+func EqualMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+	if len(runes) != len(pattern) {
+		return -1, -1
+	}
+	runesStr := string(runes)
+	if !caseSensitive {
+		runesStr = strings.ToLower(runesStr)
+	}
+	if runesStr == string(pattern) {
+		return 0, len(pattern)
+	}
+	return -1, -1
+}

src/algo/algo_test.go

@@ -5,11 +5,11 @@ import (
 	"testing"
 )
 
-func assertMatch(t *testing.T, fun func(bool, *string, []rune) (int, int), caseSensitive bool, input string, pattern string, sidx int, eidx int) {
+func assertMatch(t *testing.T, fun func(bool, []rune, []rune) (int, int), caseSensitive bool, input string, pattern string, sidx int, eidx int) {
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	s, e := fun(caseSensitive, &input, []rune(pattern))
+	s, e := fun(caseSensitive, []rune(input), []rune(pattern))
 	if s != sidx {
 		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", s, sidx, input, pattern)
 	}
@@ -42,3 +42,10 @@ func TestSuffixMatch(t *testing.T) {
 	assertMatch(t, SuffixMatch, false, "fooBarbaz", "baz", 6, 9)
 	assertMatch(t, SuffixMatch, true, "fooBarbaz", "Baz", -1, -1)
 }
+
+func TestEmptyPattern(t *testing.T) {
+	assertMatch(t, FuzzyMatch, true, "foobar", "", 0, 0)
+	assertMatch(t, ExactMatchNaive, true, "foobar", "", 0, 0)
+	assertMatch(t, PrefixMatch, true, "foobar", "", 0, 0)
+	assertMatch(t, SuffixMatch, true, "foobar", "", 6, 6)
+}

src/ansi.go

@@ -0,0 +1,149 @@
+package fzf
+
+import (
+	"bytes"
+	"regexp"
+	"strconv"
+	"strings"
+	"unicode/utf8"
+)
+
+type ansiOffset struct {
+	offset [2]int32
+	color  ansiState
+}
+
+type ansiState struct {
+	fg   int
+	bg   int
+	bold bool
+}
+
+func (s *ansiState) colored() bool {
+	return s.fg != -1 || s.bg != -1 || s.bold
+}
+
+func (s *ansiState) equals(t *ansiState) bool {
+	if t == nil {
+		return !s.colored()
+	}
+	return s.fg == t.fg && s.bg == t.bg && s.bold == t.bold
+}
+
+var ansiRegex *regexp.Regexp
+
+func init() {
+	ansiRegex = regexp.MustCompile("\x1b\\[[0-9;]*[mK]")
+}
+
+func extractColor(str string, state *ansiState) (string, []ansiOffset, *ansiState) {
+	var offsets []ansiOffset
+	var output bytes.Buffer
+
+	if state != nil {
+		offsets = append(offsets, ansiOffset{[2]int32{0, 0}, *state})
+	}
+
+	idx := 0
+	for _, offset := range ansiRegex.FindAllStringIndex(str, -1) {
+		output.WriteString(str[idx:offset[0]])
+		newState := interpretCode(str[offset[0]:offset[1]], state)
+
+		if !newState.equals(state) {
+			if state != nil {
+				// Update last offset
+				(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
+			}
+
+			if newState.colored() {
+				// Append new offset
+				state = newState
+				newLen := int32(utf8.RuneCount(output.Bytes()))
+				offsets = append(offsets, ansiOffset{[2]int32{newLen, newLen}, *state})
+			} else {
+				// Discard state
+				state = nil
+			}
+		}
+
+		idx = offset[1]
+	}
+
+	rest := str[idx:]
+	if len(rest) > 0 {
+		output.WriteString(rest)
+		if state != nil {
+			// Update last offset
+			(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
+		}
+	}
+	return output.String(), offsets, state
+}
+
+func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
+	// State
+	var state *ansiState
+	if prevState == nil {
+		state = &ansiState{-1, -1, false}
+	} else {
+		state = &ansiState{prevState.fg, prevState.bg, prevState.bold}
+	}
+	if ansiCode[len(ansiCode)-1] == 'K' {
+		return state
+	}
+
+	ptr := &state.fg
+	state256 := 0
+
+	init := func() {
+		state.fg = -1
+		state.bg = -1
+		state.bold = false
+		state256 = 0
+	}
+
+	ansiCode = ansiCode[2 : len(ansiCode)-1]
+	if len(ansiCode) == 0 {
+		init()
+	}
+	for _, code := range strings.Split(ansiCode, ";") {
+		if num, err := strconv.Atoi(code); err == nil {
+			switch state256 {
+			case 0:
+				switch num {
+				case 38:
+					ptr = &state.fg
+					state256++
+				case 48:
+					ptr = &state.bg
+					state256++
+				case 39:
+					state.fg = -1
+				case 49:
+					state.bg = -1
+				case 1:
+					state.bold = true
+				case 0:
+					init()
+				default:
+					if num >= 30 && num <= 37 {
+						state.fg = num - 30
+					} else if num >= 40 && num <= 47 {
+						state.bg = num - 40
+					}
+				}
+			case 1:
+				switch num {
+				case 5:
+					state256++
+				default:
+					state256 = 0
+				}
+			case 2:
+				*ptr = num
+				state256 = 0
+			}
+		}
+	}
+	return state
+}

src/ansi_test.go

@@ -0,0 +1,152 @@
+package fzf
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestExtractColor(t *testing.T) {
+	assert := func(offset ansiOffset, b int32, e int32, fg int, bg int, bold bool) {
+		if offset.offset[0] != b || offset.offset[1] != e ||
+			offset.color.fg != fg || offset.color.bg != bg || offset.color.bold != bold {
+			t.Error(offset, b, e, fg, bg, bold)
+		}
+	}
+
+	src := "hello world"
+	var state *ansiState
+	clean := "\x1b[0m"
+	check := func(assertion func(ansiOffsets []ansiOffset, state *ansiState)) {
+		output, ansiOffsets, newState := extractColor(src, state)
+		state = newState
+		if output != "hello world" {
+			t.Errorf("Invalid output: {}", output)
+		}
+		fmt.Println(src, ansiOffsets, clean)
+		assertion(ansiOffsets, state)
+	}
+
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) > 0 {
+			t.Fail()
+		}
+	})
+
+	state = nil
+	src = "\x1b[0mhello world"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) > 0 {
+			t.Fail()
+		}
+	})
+
+	state = nil
+	src = "\x1b[1mhello world"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 11, -1, -1, true)
+	})
+
+	state = nil
+	src = "\x1b[1mhello \x1b[mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 6, -1, -1, true)
+	})
+
+	state = nil
+	src = "\x1b[1mhello \x1b[Kworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 11, -1, -1, true)
+	})
+
+	state = nil
+	src = "hello \x1b[34;45;1mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 11, 4, 5, true)
+	})
+
+	state = nil
+	src = "hello \x1b[34;45;1mwor\x1b[34;45;1mld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 11, 4, 5, true)
+	})
+
+	state = nil
+	src = "hello \x1b[34;45;1mwor\x1b[0mld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 9, 4, 5, true)
+	})
+
+	state = nil
+	src = "hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 3 {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 8, 4, 233, true)
+		assert(offsets[1], 8, 9, 161, 233, true)
+		assert(offsets[2], 10, 11, 161, -1, false)
+	})
+
+	// {38,48};5;{38,48}
+	state = nil
+	src = "hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 2 {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 9, 38, 48, true)
+		assert(offsets[1], 9, 10, 48, 38, true)
+	})
+
+	src = "hello \x1b[32;1mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		if state.fg != 2 || state.bg != -1 || !state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 11, 2, -1, true)
+	})
+
+	src = "hello world"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		if state.fg != 2 || state.bg != -1 || !state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 11, 2, -1, true)
+	})
+
+	src = "hello \x1b[0;38;5;200;48;5;100mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 2 {
+			t.Fail()
+		}
+		if state.fg != 200 || state.bg != 100 || state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 6, 2, -1, true)
+		assert(offsets[1], 6, 11, 200, 100, false)
+	})
+}

src/cache.go

@@ -2,23 +2,23 @@ package fzf
 
 import "sync"
 
-// QueryCache associates strings to lists of items
-type QueryCache map[string][]*Item
+// queryCache associates strings to lists of items
+type queryCache map[string][]*Item
 
 // ChunkCache associates Chunk and query string to lists of items
 type ChunkCache struct {
 	mutex sync.Mutex
-	cache map[*Chunk]*QueryCache
+	cache map[*Chunk]*queryCache
 }
 
 // NewChunkCache returns a new ChunkCache
 func NewChunkCache() ChunkCache {
-	return ChunkCache{sync.Mutex{}, make(map[*Chunk]*QueryCache)}
+	return ChunkCache{sync.Mutex{}, make(map[*Chunk]*queryCache)}
 }
 
 // Add adds the list to the cache
 func (cc *ChunkCache) Add(chunk *Chunk, key string, list []*Item) {
-	if len(key) == 0 || !chunk.IsFull() {
+	if len(key) == 0 || !chunk.IsFull() || len(list) > queryCacheMax {
 		return
 	}
 
@@ -27,7 +27,7 @@ func (cc *ChunkCache) Add(chunk *Chunk, key string, list []*Item) {
 
 	qc, ok := cc.cache[chunk]
 	if !ok {
-		cc.cache[chunk] = &QueryCache{}
+		cc.cache[chunk] = &queryCache{}
 		qc = cc.cache[chunk]
 	}
 	(*qc)[key] = list

src/cache_test.go

@@ -4,7 +4,7 @@ import "testing"
 
 func TestChunkCache(t *testing.T) {
 	cache := NewChunkCache()
-	chunk2 := make(Chunk, ChunkSize)
+	chunk2 := make(Chunk, chunkSize)
 	chunk1p := &Chunk{}
 	chunk2p := &chunk2
 	items1 := []*Item{&Item{}}

src/chunklist.go

@@ -2,15 +2,12 @@ package fzf
 
 import "sync"
 
-// Capacity of each chunk
-const ChunkSize int = 100
-
-// Chunk is a list of Item pointers whose size has the upper limit of ChunkSize
+// Chunk is a list of Item pointers whose size has the upper limit of chunkSize
 type Chunk []*Item // >>> []Item
 
 // ItemBuilder is a closure type that builds Item object from a pointer to a
 // string and an integer
-type ItemBuilder func(*string, int) *Item
+type ItemBuilder func([]byte, int) *Item
 
 // ChunkList is a list of Chunks
 type ChunkList struct {
@@ -29,13 +26,18 @@ func NewChunkList(trans ItemBuilder) *ChunkList {
 		trans:  trans}
 }
 
-func (c *Chunk) push(trans ItemBuilder, data *string, index int) {
-	*c = append(*c, trans(data, index))
+func (c *Chunk) push(trans ItemBuilder, data []byte, index int) bool {
+	item := trans(data, index)
+	if item != nil {
+		*c = append(*c, item)
+		return true
+	}
+	return false
 }
 
 // IsFull returns true if the Chunk is full
 func (c *Chunk) IsFull() bool {
-	return len(*c) == ChunkSize
+	return len(*c) == chunkSize
 }
 
 func (cl *ChunkList) lastChunk() *Chunk {
@@ -47,21 +49,24 @@ func CountItems(cs []*Chunk) int {
 	if len(cs) == 0 {
 		return 0
 	}
-	return ChunkSize*(len(cs)-1) + len(*(cs[len(cs)-1]))
+	return chunkSize*(len(cs)-1) + len(*(cs[len(cs)-1]))
 }
 
 // Push adds the item to the list
-func (cl *ChunkList) Push(data string) {
+func (cl *ChunkList) Push(data []byte) bool {
 	cl.mutex.Lock()
 	defer cl.mutex.Unlock()
 
 	if len(cl.chunks) == 0 || cl.lastChunk().IsFull() {
-		newChunk := Chunk(make([]*Item, 0, ChunkSize))
+		newChunk := Chunk(make([]*Item, 0, chunkSize))
 		cl.chunks = append(cl.chunks, &newChunk)
 	}
 
-	cl.lastChunk().push(cl.trans, &data, cl.count)
-	cl.count++
+	if cl.lastChunk().push(cl.trans, data, cl.count) {
+		cl.count++
+		return true
+	}
+	return false
 }
 
 // Snapshot returns immutable snapshot of the ChunkList

src/chunklist_test.go

@@ -6,8 +6,8 @@ import (
 )
 
 func TestChunkList(t *testing.T) {
-	cl := NewChunkList(func(s *string, i int) *Item {
-		return &Item{text: s, rank: Rank{0, 0, uint32(i * 2)}}
+	cl := NewChunkList(func(s []byte, i int) *Item {
+		return &Item{text: []rune(string(s)), rank: Rank{0, 0, uint32(i * 2)}}
 	})
 
 	// Snapshot
@@ -17,8 +17,8 @@ func TestChunkList(t *testing.T) {
 	}
 
 	// Add some data
-	cl.Push("hello")
-	cl.Push("world")
+	cl.Push([]byte("hello"))
+	cl.Push([]byte("world"))
 
 	// Previously created snapshot should remain the same
 	if len(snapshot) > 0 {
@@ -36,8 +36,8 @@ func TestChunkList(t *testing.T) {
 	if len(*chunk1) != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if *(*chunk1)[0].text != "hello" || (*chunk1)[0].rank.index != 0 ||
-		*(*chunk1)[1].text != "world" || (*chunk1)[1].rank.index != 2 {
+	if string((*chunk1)[0].text) != "hello" || (*chunk1)[0].rank.index != 0 ||
+		string((*chunk1)[1].text) != "world" || (*chunk1)[1].rank.index != 2 {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {
@@ -45,8 +45,8 @@ func TestChunkList(t *testing.T) {
 	}
 
 	// Add more data
-	for i := 0; i < ChunkSize*2; i++ {
-		cl.Push(fmt.Sprintf("item %d", i))
+	for i := 0; i < chunkSize*2; i++ {
+		cl.Push([]byte(fmt.Sprintf("item %d", i)))
 	}
 
 	// Previous snapshot should remain the same
@@ -57,15 +57,15 @@ func TestChunkList(t *testing.T) {
 	// New snapshot
 	snapshot, count = cl.Snapshot()
 	if len(snapshot) != 3 || !snapshot[0].IsFull() ||
-		!snapshot[1].IsFull() || snapshot[2].IsFull() || count != ChunkSize*2+2 {
+		!snapshot[1].IsFull() || snapshot[2].IsFull() || count != chunkSize*2+2 {
 		t.Error("Expected two full chunks and one more chunk")
 	}
 	if len(*snapshot[2]) != 2 {
 		t.Error("Unexpected number of items")
 	}
 
-	cl.Push("hello")
-	cl.Push("world")
+	cl.Push([]byte("hello"))
+	cl.Push([]byte("world"))
 
 	lastChunkCount := len(*snapshot[len(snapshot)-1])
 	if lastChunkCount != 2 {

src/constants.go

@@ -1,11 +1,41 @@
 package fzf
 
 import (
+	"time"
+
 	"github.com/junegunn/fzf/src/util"
 )
 
-// Current version
-const Version = "0.9.4"
+const (
+	// Current version
+	version = "0.10.2"
+
+	// Core
+	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
+	coordinatorDelayStep time.Duration = 10 * time.Millisecond
+
+	// Reader
+	defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
+
+	// Terminal
+	initialDelay    = 100 * time.Millisecond
+	spinnerDuration = 200 * time.Millisecond
+
+	// Matcher
+	progressMinDuration = 200 * time.Millisecond
+
+	// Capacity of each chunk
+	chunkSize int = 100
+
+	// Do not cache results of low selectivity queries
+	queryCacheMax int = chunkSize / 5
+
+	// Not to cache mergers with large lists
+	mergerCacheMax int = 100000
+
+	// History
+	defaultHistoryMax int = 1000
+)
 
 // fzf events
 const (
@@ -14,5 +44,6 @@ const (
 	EvtSearchNew
 	EvtSearchProgress
 	EvtSearchFin
+	EvtHeader
 	EvtClose
 )

src/core.go

@@ -34,9 +34,6 @@ import (
 	"github.com/junegunn/fzf/src/util"
 )
 
-const coordinatorDelayMax time.Duration = 100 * time.Millisecond
-const coordinatorDelayStep time.Duration = 10 * time.Millisecond
-
 func initProcs() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
 }
@@ -44,50 +41,102 @@ func initProcs() {
 /*
 Reader   -> EvtReadFin
 Reader   -> EvtReadNew        -> Matcher  (restart)
-Terminal -> EvtSearchNew      -> Matcher  (restart)
+Terminal -> EvtSearchNew:bool -> Matcher  (restart)
 Matcher  -> EvtSearchProgress -> Terminal (update info)
 Matcher  -> EvtSearchFin      -> Terminal (update list)
+Matcher  -> EvtHeader         -> Terminal (update header)
 */
 
 // Run starts fzf
-func Run(options *Options) {
+func Run(opts *Options) {
 	initProcs()
 
-	opts := ParseOptions()
+	sort := opts.Sort > 0
+	rankTiebreak = opts.Tiebreak
 
 	if opts.Version {
-		fmt.Println(Version)
+		fmt.Println(version)
 		os.Exit(0)
 	}
 
 	// Event channel
 	eventBox := util.NewEventBox()
 
+	// ANSI code processor
+	ansiProcessor := func(data []byte) ([]rune, []ansiOffset) {
+		return util.BytesToRunes(data), nil
+	}
+	ansiProcessorRunes := func(data []rune) ([]rune, []ansiOffset) {
+		return data, nil
+	}
+	if opts.Ansi {
+		if opts.Theme != nil {
+			var state *ansiState
+			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
+				trimmed, offsets, newState := extractColor(string(data), state)
+				state = newState
+				return []rune(trimmed), offsets
+			}
+		} else {
+			// When color is disabled but ansi option is given,
+			// we simply strip out ANSI codes from the input
+			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
+				trimmed, _, _ := extractColor(string(data), nil)
+				return []rune(trimmed), nil
+			}
+		}
+		ansiProcessorRunes = func(data []rune) ([]rune, []ansiOffset) {
+			return ansiProcessor([]byte(string(data)))
+		}
+	}
+
 	// Chunk list
 	var chunkList *ChunkList
+	header := make([]string, 0, opts.HeaderLines)
 	if len(opts.WithNth) == 0 {
-		chunkList = NewChunkList(func(data *string, index int) *Item {
+		chunkList = NewChunkList(func(data []byte, index int) *Item {
+			if len(header) < opts.HeaderLines {
+				header = append(header, string(data))
+				eventBox.Set(EvtHeader, header)
+				return nil
+			}
+			runes, colors := ansiProcessor(data)
 			return &Item{
-				text:  data,
-				index: uint32(index),
-				rank:  Rank{0, 0, uint32(index)}}
+				text:   runes,
+				index:  uint32(index),
+				colors: colors,
+				rank:   Rank{0, 0, uint32(index)}}
 		})
 	} else {
-		chunkList = NewChunkList(func(data *string, index int) *Item {
-			tokens := Tokenize(data, opts.Delimiter)
+		chunkList = NewChunkList(func(data []byte, index int) *Item {
+			runes := util.BytesToRunes(data)
+			tokens := Tokenize(runes, opts.Delimiter)
+			trans := Transform(tokens, opts.WithNth)
+			if len(header) < opts.HeaderLines {
+				header = append(header, string(joinTokens(trans)))
+				eventBox.Set(EvtHeader, header)
+				return nil
+			}
 			item := Item{
-				text:     Transform(tokens, opts.WithNth).whole,
-				origText: data,
+				text:     joinTokens(trans),
+				origText: &runes,
 				index:    uint32(index),
+				colors:   nil,
 				rank:     Rank{0, 0, uint32(index)}}
+
+			trimmed, colors := ansiProcessorRunes(item.text)
+			item.text = trimmed
+			item.colors = colors
 			return &item
 		})
 	}
 
 	// Reader
-	streamingFilter := opts.Filter != nil && opts.Sort == 0 && !opts.Tac && !opts.Sync
+	streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
 	if !streamingFilter {
-		reader := Reader{func(str string) { chunkList.Push(str) }, eventBox}
+		reader := Reader{func(data []byte) bool {
+			return chunkList.Push(data)
+		}, eventBox, opts.ReadZero}
 		go reader.ReadSource()
 	}
 
@@ -96,7 +145,7 @@ func Run(options *Options) {
 		return BuildPattern(
 			opts.Mode, opts.Case, opts.Nth, opts.Delimiter, runes)
 	}
-	matcher := NewMatcher(patternBuilder, opts.Sort > 0, opts.Tac, eventBox)
+	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
 
 	// Filtering mode
 	if opts.Filter != nil {
@@ -108,12 +157,13 @@ func Run(options *Options) {
 
 		if streamingFilter {
 			reader := Reader{
-				func(str string) {
-					item := chunkList.trans(&str, 0)
-					if pattern.MatchItem(item) {
-						fmt.Println(*item.text)
+				func(runes []byte) bool {
+					item := chunkList.trans(runes, 0)
+					if item != nil && pattern.MatchItem(item) {
+						fmt.Println(string(item.text))
 					}
-				}, eventBox}
+					return false
+				}, eventBox, opts.ReadZero}
 			reader.ReadSource()
 		} else {
 			eventBox.Unwatch(EvtReadNew)
@@ -163,11 +213,15 @@ func Run(options *Options) {
 					reading = reading && evt == EvtReadNew
 					snapshot, count := chunkList.Snapshot()
 					terminal.UpdateCount(count, !reading)
-					matcher.Reset(snapshot, terminal.Input(), false, !reading)
+					matcher.Reset(snapshot, terminal.Input(), false, !reading, sort)
 
 				case EvtSearchNew:
+					switch val := value.(type) {
+					case bool:
+						sort = val
+					}
 					snapshot, _ := chunkList.Snapshot()
-					matcher.Reset(snapshot, terminal.Input(), true, !reading)
+					matcher.Reset(snapshot, terminal.Input(), true, !reading, sort)
 					delay = false
 
 				case EvtSearchProgress:
@@ -176,6 +230,9 @@ func Run(options *Options) {
 						terminal.UpdateProgress(val)
 					}
 
+				case EvtHeader:
+					terminal.UpdateHeader(value.([]string), opts.HeaderLines)
+
 				case EvtSearchFin:
 					switch val := value.(type) {
 					case *Merger:
@@ -189,6 +246,9 @@ func Run(options *Options) {
 									if opts.PrintQuery {
 										fmt.Println(opts.Query)
 									}
+									if len(opts.Expect) > 0 {
+										fmt.Println()
+									}
 									for i := 0; i < count; i++ {
 										fmt.Println(val.Get(i).AsString())
 									}

src/curses/curses.go

@@ -4,15 +4,11 @@ package curses
 #include <ncurses.h>
 #include <locale.h>
 #cgo LDFLAGS: -lncurses
-void swapOutput() {
-  FILE* temp = stdout;
-  stdout = stderr;
-  stderr = temp;
-}
 */
 import "C"
 
 import (
+	"fmt"
 	"os"
 	"os/signal"
 	"syscall"
@@ -56,15 +52,36 @@ const (
 	Mouse
 
 	BTab
+	BSpace
 
 	Del
 	PgUp
 	PgDn
 
-	AltB
-	AltF
-	AltD
+	Up
+	Down
+	Left
+	Right
+	Home
+	End
+
+	SLeft
+	SRight
+
+	F1
+	F2
+	F3
+	F4
+
 	AltBS
+	AltA
+	AltB
+	AltC
+	AltD
+	AltE
+	AltF
+
+	AltZ = AltA + 'z' - 'a'
 )
 
 // Pallete
@@ -78,12 +95,30 @@ const (
 	ColInfo
 	ColCursor
 	ColSelected
+	ColHeader
+	ColUser
 )
 
 const (
 	doubleClickDuration = 500 * time.Millisecond
 )
 
+type ColorTheme struct {
+	UseDefault   bool
+	Fg           int16
+	Bg           int16
+	DarkBg       int16
+	Prompt       int16
+	Match        int16
+	Current      int16
+	CurrentMatch int16
+	Spinner      int16
+	Info         int16
+	Cursor       int16
+	Selected     int16
+	Header       int16
+}
+
 type Event struct {
 	Type       int
 	Char       rune
@@ -103,14 +138,65 @@ var (
 	_buf          []byte
 	_in           *os.File
 	_color        func(int, bool) C.int
+	_colorMap     map[int]int
 	_prevDownTime time.Time
-	_prevDownY    int
 	_clickY       []int
+	_screen       *C.SCREEN
+	Default16     *ColorTheme
+	Dark256       *ColorTheme
+	Light256      *ColorTheme
+	FG            int
+	CurrentFG     int
+	BG            int
+	DarkBG        int
 )
 
 func init() {
 	_prevDownTime = time.Unix(0, 0)
 	_clickY = []int{}
+	_colorMap = make(map[int]int)
+	Default16 = &ColorTheme{
+		UseDefault:   true,
+		Fg:           15,
+		Bg:           0,
+		DarkBg:       C.COLOR_BLACK,
+		Prompt:       C.COLOR_BLUE,
+		Match:        C.COLOR_GREEN,
+		Current:      C.COLOR_YELLOW,
+		CurrentMatch: C.COLOR_GREEN,
+		Spinner:      C.COLOR_GREEN,
+		Info:         C.COLOR_WHITE,
+		Cursor:       C.COLOR_RED,
+		Selected:     C.COLOR_MAGENTA,
+		Header:       C.COLOR_CYAN}
+	Dark256 = &ColorTheme{
+		UseDefault:   true,
+		Fg:           15,
+		Bg:           0,
+		DarkBg:       236,
+		Prompt:       110,
+		Match:        108,
+		Current:      254,
+		CurrentMatch: 151,
+		Spinner:      148,
+		Info:         144,
+		Cursor:       161,
+		Selected:     168,
+		Header:       109}
+	Light256 = &ColorTheme{
+		UseDefault:   true,
+		Fg:           15,
+		Bg:           0,
+		DarkBg:       251,
+		Prompt:       25,
+		Match:        66,
+		Current:      237,
+		CurrentMatch: 23,
+		Spinner:      65,
+		Info:         101,
+		Cursor:       161,
+		Selected:     168,
+		Header:       31}
 }
 
 func attrColored(pair int, bold bool) C.int {
@@ -160,7 +246,7 @@ func getch(nonblock bool) int {
 	return int(b[0])
 }
 
-func Init(color bool, color256 bool, black bool, mouse bool) {
+func Init(theme *ColorTheme, black bool, mouse bool) {
 	{
 		in, err := os.OpenFile("/dev/tty", syscall.O_RDONLY, 0)
 		if err != nil {
@@ -171,14 +257,16 @@ func Init(color bool, color256 bool, black bool, mouse bool) {
 		// syscall.Dup2(int(in.Fd()), int(os.Stdin.Fd()))
 	}
 
-	C.swapOutput()
-
 	C.setlocale(C.LC_ALL, C.CString(""))
-	C.initscr()
+	_screen = C.newterm(nil, C.stderr, C.stdin)
+	if _screen == nil {
+		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
+		os.Exit(1)
+	}
+	C.set_term(_screen)
 	if mouse {
 		C.mousemask(C.ALL_MOUSE_EVENTS, nil)
 	}
-	C.cbreak()
 	C.noecho()
 	C.raw() // stty dsusp undef
 
@@ -190,43 +278,51 @@ func Init(color bool, color256 bool, black bool, mouse bool) {
 		os.Exit(1)
 	}()
 
-	if color {
+	if theme != nil {
 		C.start_color()
-		var bg C.short
-		if black {
-			bg = C.COLOR_BLACK
-		} else {
-			C.use_default_colors()
-			bg = -1
-		}
-		if color256 {
-			C.init_pair(ColPrompt, 110, bg)
-			C.init_pair(ColMatch, 108, bg)
-			C.init_pair(ColCurrent, 254, 236)
-			C.init_pair(ColCurrentMatch, 151, 236)
-			C.init_pair(ColSpinner, 148, bg)
-			C.init_pair(ColInfo, 144, bg)
-			C.init_pair(ColCursor, 161, 236)
-			C.init_pair(ColSelected, 168, 236)
-		} else {
-			C.init_pair(ColPrompt, C.COLOR_BLUE, bg)
-			C.init_pair(ColMatch, C.COLOR_GREEN, bg)
-			C.init_pair(ColCurrent, C.COLOR_YELLOW, C.COLOR_BLACK)
-			C.init_pair(ColCurrentMatch, C.COLOR_GREEN, C.COLOR_BLACK)
-			C.init_pair(ColSpinner, C.COLOR_GREEN, bg)
-			C.init_pair(ColInfo, C.COLOR_WHITE, bg)
-			C.init_pair(ColCursor, C.COLOR_RED, C.COLOR_BLACK)
-			C.init_pair(ColSelected, C.COLOR_MAGENTA, C.COLOR_BLACK)
-		}
+		initPairs(theme, black)
 		_color = attrColored
 	} else {
 		_color = attrMono
 	}
 }
 
+func initPairs(theme *ColorTheme, black bool) {
+	fg := C.short(theme.Fg)
+	bg := C.short(theme.Bg)
+	if black {
+		bg = C.COLOR_BLACK
+	} else if theme.UseDefault {
+		fg = -1
+		bg = -1
+		C.use_default_colors()
+	}
+	if theme.UseDefault {
+		FG = -1
+		BG = -1
+	} else {
+		FG = int(fg)
+		BG = int(bg)
+		C.assume_default_colors(C.int(theme.Fg), C.int(bg))
+	}
+
+	CurrentFG = int(theme.Current)
+	DarkBG = int(theme.DarkBg)
+	darkBG := C.short(DarkBG)
+	C.init_pair(ColPrompt, C.short(theme.Prompt), bg)
+	C.init_pair(ColMatch, C.short(theme.Match), bg)
+	C.init_pair(ColCurrent, C.short(theme.Current), darkBG)
+	C.init_pair(ColCurrentMatch, C.short(theme.CurrentMatch), darkBG)
+	C.init_pair(ColSpinner, C.short(theme.Spinner), bg)
+	C.init_pair(ColInfo, C.short(theme.Info), bg)
+	C.init_pair(ColCursor, C.short(theme.Cursor), darkBG)
+	C.init_pair(ColSelected, C.short(theme.Selected), darkBG)
+	C.init_pair(ColHeader, C.short(theme.Header), bg)
+}
+
 func Close() {
 	C.endwin()
-	C.swapOutput()
+	C.delscreen(_screen)
 }
 
 func GetBytes() []byte {
@@ -303,21 +399,29 @@ func escSequence(sz *int) Event {
 		*sz = 3
 		switch _buf[2] {
 		case 68:
-			return Event{CtrlB, 0, nil}
+			return Event{Left, 0, nil}
 		case 67:
-			return Event{CtrlF, 0, nil}
+			return Event{Right, 0, nil}
 		case 66:
-			return Event{CtrlJ, 0, nil}
+			return Event{Down, 0, nil}
 		case 65:
-			return Event{CtrlK, 0, nil}
+			return Event{Up, 0, nil}
 		case 90:
 			return Event{BTab, 0, nil}
 		case 72:
-			return Event{CtrlA, 0, nil}
+			return Event{Home, 0, nil}
 		case 70:
-			return Event{CtrlE, 0, nil}
+			return Event{End, 0, nil}
 		case 77:
 			return mouseSequence(sz)
+		case 80:
+			return Event{F1, 0, nil}
+		case 81:
+			return Event{F2, 0, nil}
+		case 82:
+			return Event{F3, 0, nil}
+		case 83:
+			return Event{F4, 0, nil}
 		case 49, 50, 51, 52, 53, 54:
 			if len(_buf) < 4 {
 				return Event{Invalid, 0, nil}
@@ -329,7 +433,7 @@ func escSequence(sz *int) Event {
 			case 51:
 				return Event{Del, 0, nil}
 			case 52:
-				return Event{CtrlE, 0, nil}
+				return Event{End, 0, nil}
 			case 53:
 				return Event{PgUp, 0, nil}
 			case 54:
@@ -337,7 +441,7 @@ func escSequence(sz *int) Event {
 			case 49:
 				switch _buf[3] {
 				case 126:
-					return Event{CtrlA, 0, nil}
+					return Event{Home, 0, nil}
 				case 59:
 					if len(_buf) != 6 {
 						return Event{Invalid, 0, nil}
@@ -347,22 +451,25 @@ func escSequence(sz *int) Event {
 					case 50:
 						switch _buf[5] {
 						case 68:
-							return Event{CtrlA, 0, nil}
+							return Event{Home, 0, nil}
 						case 67:
-							return Event{CtrlE, 0, nil}
+							return Event{End, 0, nil}
 						}
 					case 53:
 						switch _buf[5] {
 						case 68:
-							return Event{AltB, 0, nil}
+							return Event{SLeft, 0, nil}
 						case 67:
-							return Event{AltF, 0, nil}
+							return Event{SRight, 0, nil}
 						}
 					} // _buf[4]
 				} // _buf[3]
 			} // _buf[2]
 		} // _buf[2]
 	} // _buf[1]
+	if _buf[1] >= 'a' && _buf[1] <= 'z' {
+		return Event{AltA + int(_buf[1]) - 'a', 0, nil}
+	}
 	return Event{Invalid, 0, nil}
 }
 
@@ -380,10 +487,14 @@ func GetChar() Event {
 	}()
 
 	switch _buf[0] {
-	case CtrlC, CtrlG, CtrlQ:
+	case CtrlC:
 		return Event{CtrlC, 0, nil}
+	case CtrlG:
+		return Event{CtrlG, 0, nil}
+	case CtrlQ:
+		return Event{CtrlQ, 0, nil}
 	case 127:
-		return Event{CtrlH, 0, nil}
+		return Event{BSpace, 0, nil}
 	case ESC:
 		return escSequence(&sz)
 	}
@@ -393,6 +504,9 @@ func GetChar() Event {
 		return Event{int(_buf[0]), 0, nil}
 	}
 	r, rsz := utf8.DecodeRune(_buf)
+	if r == utf8.RuneError {
+		return Event{ESC, 0, nil}
+	}
 	sz = rsz
 	return Event{Rune, r, nil}
 }
@@ -428,3 +542,15 @@ func Endwin() {
 func Refresh() {
 	C.refresh()
 }
+
+func PairFor(fg int, bg int) int {
+	key := (fg << 8) + bg
+	if found, prs := _colorMap[key]; prs {
+		return found
+	}
+
+	id := len(_colorMap) + ColUser
+	C.init_pair(C.short(id), C.short(fg), C.short(bg))
+	_colorMap[key] = id
+	return id
+}

src/curses/curses_test.go

@@ -0,0 +1,14 @@
+package curses
+
+import (
+	"testing"
+)
+
+func TestPairFor(t *testing.T) {
+	if PairFor(30, 50) != PairFor(30, 50) {
+		t.Fail()
+	}
+	if PairFor(-1, 10) != PairFor(-1, 10) {
+		t.Fail()
+	}
+}

src/history.go

@@ -0,0 +1,96 @@
+package fzf
+
+import (
+	"errors"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+// History struct represents input history
+type History struct {
+	path     string
+	lines    []string
+	modified map[int]string
+	maxSize  int
+	cursor   int
+}
+
+// NewHistory returns the pointer to a new History struct
+func NewHistory(path string, maxSize int) (*History, error) {
+	fmtError := func(e error) error {
+		if os.IsPermission(e) {
+			return errors.New("permission denied: " + path)
+		}
+		return errors.New("invalid history file: " + e.Error())
+	}
+
+	// Read history file
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		// If it doesn't exist, check if we can create a file with the name
+		if os.IsNotExist(err) {
+			data = []byte{}
+			if err := ioutil.WriteFile(path, data, 0600); err != nil {
+				return nil, fmtError(err)
+			}
+		} else {
+			return nil, fmtError(err)
+		}
+	}
+	// Split lines and limit the maximum number of lines
+	lines := strings.Split(strings.Trim(string(data), "\n"), "\n")
+	if len(lines[len(lines)-1]) > 0 {
+		lines = append(lines, "")
+	}
+	return &History{
+		path:     path,
+		maxSize:  maxSize,
+		lines:    lines,
+		modified: make(map[int]string),
+		cursor:   len(lines) - 1}, nil
+}
+
+func (h *History) append(line string) error {
+	// We don't append empty lines
+	if len(line) == 0 {
+		return nil
+	}
+
+	lines := append(h.lines[:len(h.lines)-1], line)
+	if len(lines) > h.maxSize {
+		lines = lines[len(lines)-h.maxSize : len(lines)]
+	}
+	h.lines = append(lines, "")
+	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)
+}
+
+func (h *History) override(str string) {
+	// You can update the history but they're not written to the file
+	if h.cursor == len(h.lines)-1 {
+		h.lines[h.cursor] = str
+	} else if h.cursor < len(h.lines)-1 {
+		h.modified[h.cursor] = str
+	}
+}
+
+func (h *History) current() string {
+	if str, prs := h.modified[h.cursor]; prs {
+		return str
+	}
+	return h.lines[h.cursor]
+}
+
+func (h *History) previous() string {
+	if h.cursor > 0 {
+		h.cursor--
+	}
+	return h.current()
+}
+
+func (h *History) next() string {
+	if h.cursor < len(h.lines)-1 {
+		h.cursor++
+	}
+	return h.current()
+}

src/history_test.go

@@ -0,0 +1,59 @@
+package fzf
+
+import (
+	"os/user"
+	"testing"
+)
+
+func TestHistory(t *testing.T) {
+	maxHistory := 50
+
+	// Invalid arguments
+	user, _ := user.Current()
+	paths := []string{"/etc", "/proc"}
+	if user.Name != "root" {
+		paths = append(paths, "/etc/sudoers")
+	}
+	for _, path := range paths {
+		if _, e := NewHistory(path, maxHistory); e == nil {
+			t.Error("Error expected for: " + path)
+		}
+	}
+	{ // Append lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		for i := 0; i < maxHistory+10; i++ {
+			h.append("foobar")
+		}
+	}
+	{ // Read lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		if len(h.lines) != maxHistory+1 {
+			t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
+		}
+		for i := 0; i < maxHistory; i++ {
+			if h.lines[i] != "foobar" {
+				t.Error("Expected: foobar, actual: " + h.lines[i])
+			}
+		}
+	}
+	{ // Append lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		h.append("barfoo")
+		h.append("")
+		h.append("foobarbaz")
+	}
+	{ // Read lines again
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		if len(h.lines) != maxHistory+1 {
+			t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
+		}
+		compare := func(idx int, exp string) {
+			if h.lines[idx] != exp {
+				t.Errorf("Expected: %s, actual: %s\n", exp, h.lines[idx])
+			}
+		}
+		compare(maxHistory-3, "foobar")
+		compare(maxHistory-2, "barfoo")
+		compare(maxHistory-1, "foobarbaz")
+	}
+}

src/item.go

@@ -1,33 +1,50 @@
 package fzf
 
+import (
+	"math"
+
+	"github.com/junegunn/fzf/src/curses"
+)
+
 // Offset holds two 32-bit integers denoting the offsets of a matched substring
 type Offset [2]int32
 
+type colorOffset struct {
+	offset [2]int32
+	color  int
+	bold   bool
+}
+
 // Item represents each input line
 type Item struct {
-	text        *string
-	origText    *string
-	transformed *Transformed
+	text        []rune
+	origText    *[]rune
+	transformed []Token
 	index       uint32
 	offsets     []Offset
+	colors      []ansiOffset
 	rank        Rank
 }
 
 // Rank is used to sort the search result
 type Rank struct {
 	matchlen uint16
-	strlen   uint16
+	tiebreak uint16
 	index    uint32
 }
 
+// Tiebreak criterion to use. Never changes once fzf is started.
+var rankTiebreak tiebreak
+
 // Rank calculates rank of the Item
-func (i *Item) Rank(cache bool) Rank {
-	if cache && (i.rank.matchlen > 0 || i.rank.strlen > 0) {
-		return i.rank
+func (item *Item) Rank(cache bool) Rank {
+	if cache && (item.rank.matchlen > 0 || item.rank.tiebreak > 0) {
+		return item.rank
 	}
 	matchlen := 0
 	prevEnd := 0
-	for _, offset := range i.offsets {
+	minBegin := math.MaxUint16
+	for _, offset := range item.offsets {
 		begin := int(offset[0])
 		end := int(offset[1])
 		if prevEnd > begin {
@@ -37,22 +54,143 @@ func (i *Item) Rank(cache bool) Rank {
 			prevEnd = end
 		}
 		if end > begin {
+			if begin < minBegin {
+				minBegin = begin
+			}
 			matchlen += end - begin
 		}
 	}
-	rank := Rank{uint16(matchlen), uint16(len(*i.text)), i.index}
+	var tiebreak uint16
+	switch rankTiebreak {
+	case byLength:
+		// It is guaranteed that .transformed in not null in normal execution
+		if item.transformed != nil {
+			lenSum := 0
+			for _, token := range item.transformed {
+				lenSum += len(token.text)
+			}
+			tiebreak = uint16(lenSum)
+		} else {
+			tiebreak = uint16(len(item.text))
+		}
+	case byBegin:
+		// We can't just look at item.offsets[0][0] because it can be an inverse term
+		tiebreak = uint16(minBegin)
+	case byEnd:
+		if prevEnd > 0 {
+			tiebreak = uint16(1 + len(item.text) - prevEnd)
+		} else {
+			// Empty offsets due to inverse terms.
+			tiebreak = 1
+		}
+	case byIndex:
+		tiebreak = 1
+	}
+	rank := Rank{uint16(matchlen), tiebreak, item.index}
 	if cache {
-		i.rank = rank
+		item.rank = rank
 	}
 	return rank
 }
 
 // AsString returns the original string
-func (i *Item) AsString() string {
-	if i.origText != nil {
-		return *i.origText
+func (item *Item) AsString() string {
+	return *item.StringPtr()
+}
+
+// StringPtr returns the pointer to the original string
+func (item *Item) StringPtr() *string {
+	runes := item.text
+	if item.origText != nil {
+		runes = *item.origText
 	}
-	return *i.text
+	str := string(runes)
+	return &str
+}
+
+func (item *Item) colorOffsets(color int, bold bool, current bool) []colorOffset {
+	if len(item.colors) == 0 {
+		var offsets []colorOffset
+		for _, off := range item.offsets {
+			offsets = append(offsets, colorOffset{offset: off, color: color, bold: bold})
+		}
+		return offsets
+	}
+
+	// Find max column
+	var maxCol int32
+	for _, off := range item.offsets {
+		if off[1] > maxCol {
+			maxCol = off[1]
+		}
+	}
+	for _, ansi := range item.colors {
+		if ansi.offset[1] > maxCol {
+			maxCol = ansi.offset[1]
+		}
+	}
+	cols := make([]int, maxCol)
+
+	for colorIndex, ansi := range item.colors {
+		for i := ansi.offset[0]; i < ansi.offset[1]; i++ {
+			cols[i] = colorIndex + 1 // XXX
+		}
+	}
+
+	for _, off := range item.offsets {
+		for i := off[0]; i < off[1]; i++ {
+			cols[i] = -1
+		}
+	}
+
+	// sort.Sort(ByOrder(offsets))
+
+	// Merge offsets
+	// ------------  ----  --  ----
+	//   ++++++++      ++++++++++
+	// --++++++++--  --++++++++++---
+	curr := 0
+	start := 0
+	var offsets []colorOffset
+	add := func(idx int) {
+		if curr != 0 && idx > start {
+			if curr == -1 {
+				offsets = append(offsets, colorOffset{
+					offset: Offset{int32(start), int32(idx)}, color: color, bold: bold})
+			} else {
+				ansi := item.colors[curr-1]
+				fg := ansi.color.fg
+				if fg == -1 {
+					if current {
+						fg = curses.CurrentFG
+					} else {
+						fg = curses.FG
+					}
+				}
+				bg := ansi.color.bg
+				if bg == -1 {
+					if current {
+						bg = curses.DarkBG
+					} else {
+						bg = curses.BG
+					}
+				}
+				offsets = append(offsets, colorOffset{
+					offset: Offset{int32(start), int32(idx)},
+					color:  curses.PairFor(fg, bg),
+					bold:   ansi.color.bold || bold})
+			}
+		}
+	}
+	for idx, col := range cols {
+		if col != curr {
+			add(idx)
+			start = idx
+			curr = col
+		}
+	}
+	add(int(maxCol))
+	return offsets
 }
 
 // ByOrder is for sorting substring offsets
@@ -115,9 +253,9 @@ func compareRanks(irank Rank, jrank Rank, tac bool) bool {
 		return false
 	}
 
-	if irank.strlen < jrank.strlen {
+	if irank.tiebreak < jrank.tiebreak {
 		return true
-	} else if irank.strlen > jrank.strlen {
+	} else if irank.tiebreak > jrank.tiebreak {
 		return false
 	}
 

src/item_test.go

@@ -3,6 +3,8 @@ package fzf
 import (
 	"sort"
 	"testing"
+
+	"github.com/junegunn/fzf/src/curses"
 )
 
 func TestOffsetSort(t *testing.T) {
@@ -37,14 +39,14 @@ func TestRankComparison(t *testing.T) {
 
 // Match length, string length, index
 func TestItemRank(t *testing.T) {
-	strs := []string{"foo", "foobar", "bar", "baz"}
-	item1 := Item{text: &strs[0], index: 1, offsets: []Offset{}}
+	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
+	item1 := Item{text: strs[0], index: 1, offsets: []Offset{}}
 	rank1 := item1.Rank(true)
-	if rank1.matchlen != 0 || rank1.strlen != 3 || rank1.index != 1 {
+	if rank1.matchlen != 0 || rank1.tiebreak != 3 || rank1.index != 1 {
 		t.Error(item1.Rank(true))
 	}
 	// Only differ in index
-	item2 := Item{text: &strs[0], index: 0, offsets: []Offset{}}
+	item2 := Item{text: strs[0], index: 0, offsets: []Offset{}}
 
 	items := []*Item{&item1, &item2}
 	sort.Sort(ByRelevance(items))
@@ -60,10 +62,10 @@ func TestItemRank(t *testing.T) {
 	}
 
 	// Sort by relevance
-	item3 := Item{text: &strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
-	item4 := Item{text: &strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
-	item5 := Item{text: &strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
-	item6 := Item{text: &strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
+	item3 := Item{text: strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item4 := Item{text: strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
+	item5 := Item{text: strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item6 := Item{text: strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
 	items = []*Item{&item1, &item2, &item3, &item4, &item5, &item6}
 	sort.Sort(ByRelevance(items))
 	if items[0] != &item2 || items[1] != &item1 ||
@@ -72,3 +74,31 @@ func TestItemRank(t *testing.T) {
 		t.Error(items)
 	}
 }
+
+func TestColorOffset(t *testing.T) {
+	// ------------ 20 ----  --  ----
+	//   ++++++++        ++++++++++
+	// --++++++++--    --++++++++++---
+	item := Item{
+		offsets: []Offset{Offset{5, 15}, Offset{25, 35}},
+		colors: []ansiOffset{
+			ansiOffset{[2]int32{0, 20}, ansiState{1, 5, false}},
+			ansiOffset{[2]int32{22, 27}, ansiState{2, 6, true}},
+			ansiOffset{[2]int32{30, 32}, ansiState{3, 7, false}},
+			ansiOffset{[2]int32{33, 40}, ansiState{4, 8, true}}}}
+	// [{[0 5] 9 false} {[5 15] 99 false} {[15 20] 9 false} {[22 25] 10 true} {[25 35] 99 false} {[35 40] 11 true}]
+
+	offsets := item.colorOffsets(99, false, true)
+	assert := func(idx int, b int32, e int32, c int, bold bool) {
+		o := offsets[idx]
+		if o.offset[0] != b || o.offset[1] != e || o.color != c || o.bold != bold {
+			t.Error(o)
+		}
+	}
+	assert(0, 0, 5, curses.ColUser, false)
+	assert(1, 5, 15, 99, false)
+	assert(2, 15, 20, curses.ColUser, false)
+	assert(3, 22, 25, curses.ColUser+1, true)
+	assert(4, 25, 35, 99, false)
+	assert(5, 35, 40, curses.ColUser+2, true)
+}

src/matcher.go

@@ -15,6 +15,7 @@ type MatchRequest struct {
 	chunks  []*Chunk
 	pattern *Pattern
 	final   bool
+	sort    bool
 }
 
 // Matcher is responsible for performing search
@@ -33,10 +34,6 @@ const (
 	reqReset
 )
 
-const (
-	progressMinDuration = 200 * time.Millisecond
-)
-
 // NewMatcher returns a new Matcher
 func NewMatcher(patternBuilder func([]rune) *Pattern,
 	sort bool, tac bool, eventBox *util.EventBox) *Matcher {
@@ -69,6 +66,12 @@ func (m *Matcher) Loop() {
 			events.Clear()
 		})
 
+		if request.sort != m.sort {
+			m.sort = request.sort
+			m.mergerCache = make(map[string]*Merger)
+			clearChunkCache()
+		}
+
 		// Restart search
 		patternString := request.pattern.AsString()
 		var merger *Merger
@@ -93,7 +96,9 @@ func (m *Matcher) Loop() {
 		}
 
 		if !cancelled {
-			m.mergerCache[patternString] = merger
+			if merger.cacheable() {
+				m.mergerCache[patternString] = merger
+			}
 			merger.final = request.final
 			m.eventBox.Set(EvtSearchFin, merger)
 		}
@@ -133,7 +138,10 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 		return EmptyMerger, false
 	}
 	pattern := request.pattern
-	empty := pattern.IsEmpty()
+	if pattern.IsEmpty() {
+		return PassMerger(&request.chunks, m.tac), false
+	}
+
 	cancelled := util.NewAtomicBool(false)
 
 	slices := m.sliceChunks(request.chunks)
@@ -148,19 +156,14 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 			defer func() { waitGroup.Done() }()
 			sliceMatches := []*Item{}
 			for _, chunk := range chunks {
-				var matches []*Item
-				if empty {
-					matches = *chunk
-				} else {
-					matches = request.pattern.Match(chunk)
-				}
+				matches := request.pattern.Match(chunk)
 				sliceMatches = append(sliceMatches, matches...)
 				if cancelled.Get() {
 					return
 				}
 				countChan <- len(matches)
 			}
-			if !empty && m.sort {
+			if m.sort {
 				if m.tac {
 					sort.Sort(ByRelevanceTac(sliceMatches))
 				} else {
@@ -187,7 +190,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 			break
 		}
 
-		if !empty && m.reqBox.Peek(reqReset) {
+		if m.reqBox.Peek(reqReset) {
 			return nil, wait()
 		}
 
@@ -201,11 +204,11 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}
-	return NewMerger(partialResults, !empty && m.sort, m.tac), false
+	return NewMerger(partialResults, m.sort, m.tac), false
 }
 
 // Reset is called to interrupt/signal the ongoing search
-func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool) {
+func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool) {
 	pattern := m.patternBuilder(patternRunes)
 
 	var event util.EventType
@@ -214,5 +217,5 @@ func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final
 	} else {
 		event = reqRetry
 	}
-	m.reqBox.Set(event, MatchRequest{chunks, pattern, final})
+	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort})
 }

src/merger.go

@@ -10,6 +10,7 @@ var EmptyMerger = NewMerger([][]*Item{}, false, false)
 type Merger struct {
 	lists   [][]*Item
 	merged  []*Item
+	chunks  *[]*Chunk
 	cursors []int
 	sorted  bool
 	tac     bool
@@ -17,11 +18,26 @@ type Merger struct {
 	count   int
 }
 
+// PassMerger returns a new Merger that simply returns the items in the
+// original order
+func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
+	mg := Merger{
+		chunks: chunks,
+		tac:    tac,
+		count:  0}
+
+	for _, chunk := range *mg.chunks {
+		mg.count += len(*chunk)
+	}
+	return &mg
+}
+
 // NewMerger returns a new Merger
 func NewMerger(lists [][]*Item, sorted bool, tac bool) *Merger {
 	mg := Merger{
 		lists:   lists,
 		merged:  []*Item{},
+		chunks:  nil,
 		cursors: make([]int, len(lists)),
 		sorted:  sorted,
 		tac:     tac,
@@ -41,12 +57,20 @@ func (mg *Merger) Length() int {
 
 // Get returns the pointer to the Item object indexed by the given integer
 func (mg *Merger) Get(idx int) *Item {
+	if mg.chunks != nil {
+		if mg.tac {
+			idx = mg.count - idx - 1
+		}
+		chunk := (*mg.chunks)[idx/chunkSize]
+		return (*chunk)[idx%chunkSize]
+	}
+
 	if mg.sorted {
 		return mg.mergedGet(idx)
 	}
 
 	if mg.tac {
-		idx = mg.Length() - idx - 1
+		idx = mg.count - idx - 1
 	}
 	for _, list := range mg.lists {
 		numItems := len(list)
@@ -58,6 +82,10 @@ func (mg *Merger) Get(idx int) *Item {
 	panic(fmt.Sprintf("Index out of bounds (unsorted, %d/%d)", idx, mg.count))
 }
 
+func (mg *Merger) cacheable() bool {
+	return mg.count < mergerCacheMax
+}
+
 func (mg *Merger) mergedGet(idx int) *Item {
 	for i := len(mg.merged); i <= idx; i++ {
 		minRank := Rank{0, 0, 0}

src/merger_test.go

@@ -22,7 +22,7 @@ func randItem() *Item {
 		offsets[idx] = Offset{sidx, eidx}
 	}
 	return &Item{
-		text:    &str,
+		text:    []rune(str),
 		index:   rand.Uint32(),
 		offsets: offsets}
 }

src/options.go

@@ -2,16 +2,21 @@ package fzf
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"regexp"
+	"strconv"
 	"strings"
+	"unicode/utf8"
+
+	"github.com/junegunn/fzf/src/curses"
 
 	"github.com/junegunn/go-shellwords"
 )
 
 const usage = `usage: fzf [options]
 
-  Search mode
+  Search
     -x, --extended        Extended-search mode
     -e, --extended-exact  Extended-search mode (exact match)
     -i                    Case-insensitive match (default: smart-case match)
@@ -19,31 +24,39 @@ const usage = `usage: fzf [options]
     -n, --nth=N[,..]      Comma-separated list of field index expressions
                           for limiting search scope. Each can be a non-zero
                           integer or a range expression ([BEGIN]..[END])
-        --with-nth=N[,..] Transform the item using index expressions for search
+    --with-nth=N[,..]     Transform item using index expressions within finder
     -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
-
-  Search result
     +s, --no-sort         Do not sort the result
-        --tac             Reverse the order of the input
-                          (e.g. 'history | fzf --tac --no-sort')
+    --tac                 Reverse the order of the input
+    --tiebreak=CRITERION  Sort criterion when the scores are tied;
+                          [length|begin|end|index] (default: length)
 
   Interface
     -m, --multi           Enable multi-select with tab/shift-tab
-        --no-mouse        Disable mouse
-    +c, --no-color        Disable colors
-    +2, --no-256          Disable 256-color
-        --black           Use black background
-        --reverse         Reverse orientation
-        --prompt=STR      Input prompt (default: '> ')
+    --ansi                Enable processing of ANSI color codes
+    --no-mouse            Disable mouse
+    --color=COLSPEC       Base scheme (dark|light|16|bw) and/or custom colors
+    --black               Use black background
+    --reverse             Reverse orientation
+    --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
+    --cycle               Enable cyclic scroll
+    --no-hscroll          Disable horizontal scroll
+    --inline-info         Display finder info inline with the query
+    --prompt=STR          Input prompt (default: '> ')
+    --bind=KEYBINDS       Custom key bindings. Refer to the man page.
+    --history=FILE        History file
+    --history-size=N      Maximum number of history entries (default: 1000)
+    --header-file=FILE    The file whose content to be printed as header
+    --header-lines=N      The first N lines of the input are treated as header
 
   Scripting
     -q, --query=STR       Start the finder with the given query
     -1, --select-1        Automatically select the only match
     -0, --exit-0          Exit immediately when there's no match
     -f, --filter=STR      Filter mode. Do not start interactive finder.
-        --print-query     Print query as the first line
-        --sync            Synchronous search for multi-staged filtering
-                          (e.g. 'fzf --multi | fzf --sync')
+    --print-query         Print query as the first line
+    --expect=KEYS         Comma-separated list of keys to complete fzf
+    --sync                Synchronous search for multi-staged filtering
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
@@ -71,54 +84,101 @@ const (
 	CaseRespect
 )
 
+// Sort criteria
+type tiebreak int
+
+const (
+	byLength tiebreak = iota
+	byBegin
+	byEnd
+	byIndex
+)
+
+func defaultMargin() [4]string {
+	return [4]string{"0", "0", "0", "0"}
+}
+
 // Options stores the values of command-line options
 type Options struct {
-	Mode       Mode
-	Case       Case
-	Nth        []Range
-	WithNth    []Range
-	Delimiter  *regexp.Regexp
-	Sort       int
-	Tac        bool
-	Multi      bool
-	Mouse      bool
-	Color      bool
-	Color256   bool
-	Black      bool
-	Reverse    bool
-	Prompt     string
-	Query      string
-	Select1    bool
-	Exit0      bool
-	Filter     *string
-	PrintQuery bool
-	Sync       bool
-	Version    bool
+	Mode        Mode
+	Case        Case
+	Nth         []Range
+	WithNth     []Range
+	Delimiter   *regexp.Regexp
+	Sort        int
+	Tac         bool
+	Tiebreak    tiebreak
+	Multi       bool
+	Ansi        bool
+	Mouse       bool
+	Theme       *curses.ColorTheme
+	Black       bool
+	Reverse     bool
+	Cycle       bool
+	Hscroll     bool
+	InlineInfo  bool
+	Prompt      string
+	Query       string
+	Select1     bool
+	Exit0       bool
+	Filter      *string
+	ToggleSort  bool
+	Expect      map[int]string
+	Keymap      map[int]actionType
+	Execmap     map[int]string
+	PrintQuery  bool
+	ReadZero    bool
+	Sync        bool
+	History     *History
+	Header      []string
+	HeaderLines int
+	Margin      [4]string
+	Version     bool
+}
+
+func defaultTheme() *curses.ColorTheme {
+	if strings.Contains(os.Getenv("TERM"), "256") {
+		return curses.Dark256
+	}
+	return curses.Default16
 }
 
 func defaultOptions() *Options {
 	return &Options{
-		Mode:       ModeFuzzy,
-		Case:       CaseSmart,
-		Nth:        make([]Range, 0),
-		WithNth:    make([]Range, 0),
-		Delimiter:  nil,
-		Sort:       1000,
-		Tac:        false,
-		Multi:      false,
-		Mouse:      true,
-		Color:      true,
-		Color256:   strings.Contains(os.Getenv("TERM"), "256"),
-		Black:      false,
-		Reverse:    false,
-		Prompt:     "> ",
-		Query:      "",
-		Select1:    false,
-		Exit0:      false,
-		Filter:     nil,
-		PrintQuery: false,
-		Sync:       false,
-		Version:    false}
+		Mode:        ModeFuzzy,
+		Case:        CaseSmart,
+		Nth:         make([]Range, 0),
+		WithNth:     make([]Range, 0),
+		Delimiter:   nil,
+		Sort:        1000,
+		Tac:         false,
+		Tiebreak:    byLength,
+		Multi:       false,
+		Ansi:        false,
+		Mouse:       true,
+		Theme:       defaultTheme(),
+		Black:       false,
+		Reverse:     false,
+		Cycle:       false,
+		Hscroll:     true,
+		InlineInfo:  false,
+		Prompt:      "> ",
+		Query:       "",
+		Select1:     false,
+		Exit0:       false,
+		Filter:      nil,
+		ToggleSort:  false,
+		Expect:      make(map[int]string),
+		Keymap:      defaultKeymap(),
+		Execmap:     make(map[int]string),
+		PrintQuery:  false,
+		ReadZero:    false,
+		Sync:        false,
+		History:     nil,
+		Header:      make([]string, 0),
+		HeaderLines: 0,
+		Margin:      defaultMargin(),
+		Version:     false}
 }
 
 func help(ok int) {
@@ -128,14 +188,14 @@ func help(ok int) {
 
 func errorExit(msg string) {
 	os.Stderr.WriteString(msg + "\n")
-	help(1)
+	os.Exit(1)
 }
 
-func optString(arg string, prefix string) (bool, string) {
-	rx, _ := regexp.Compile(fmt.Sprintf("^(?:%s)(.*)$", prefix))
-	matches := rx.FindStringSubmatch(arg)
-	if len(matches) > 1 {
-		return true, matches[1]
+func optString(arg string, prefixes ...string) (bool, string) {
+	for _, prefix := range prefixes {
+		if strings.HasPrefix(arg, prefix) {
+			return true, arg[len(prefix):]
+		}
 	}
 	return false, ""
 }
@@ -149,6 +209,39 @@ func nextString(args []string, i *int, message string) string {
 	return args[*i]
 }
 
+func optionalNextString(args []string, i *int) string {
+	if len(args) > *i+1 {
+		*i++
+		return args[*i]
+	}
+	return ""
+}
+
+func atoi(str string) int {
+	num, err := strconv.Atoi(str)
+	if err != nil {
+		errorExit("not a valid integer: " + str)
+	}
+	return num
+}
+
+func atof(str string) float64 {
+	num, err := strconv.ParseFloat(str, 64)
+	if err != nil {
+		errorExit("not a valid number: " + str)
+	}
+	return num
+}
+
+func nextInt(args []string, i *int, message string) int {
+	if len(args) > *i+1 {
+		*i++
+	} else {
+		errorExit(message)
+	}
+	return atoi(args[*i])
+}
+
 func optionalNumeric(args []string, i *int) int {
 	if len(args) > *i+1 {
 		if strings.IndexAny(args[*i+1], "0123456789") == 0 {
@@ -188,7 +281,398 @@ func delimiterRegexp(str string) *regexp.Regexp {
 	return rx
 }
 
+func isAlphabet(char uint8) bool {
+	return char >= 'a' && char <= 'z'
+}
+
+func parseKeyChords(str string, message string) map[int]string {
+	if len(str) == 0 {
+		errorExit(message)
+	}
+
+	tokens := strings.Split(str, ",")
+	if str == "," || strings.HasPrefix(str, ",,") || strings.HasSuffix(str, ",,") || strings.Index(str, ",,,") >= 0 {
+		tokens = append(tokens, ",")
+	}
+
+	chords := make(map[int]string)
+	for _, key := range tokens {
+		if len(key) == 0 {
+			continue // ignore
+		}
+		lkey := strings.ToLower(key)
+		chord := 0
+		switch lkey {
+		case "up":
+			chord = curses.Up
+		case "down":
+			chord = curses.Down
+		case "left":
+			chord = curses.Left
+		case "right":
+			chord = curses.Right
+		case "enter", "return":
+			chord = curses.CtrlM
+		case "space":
+			chord = curses.AltZ + int(' ')
+		case "bspace", "bs":
+			chord = curses.BSpace
+		case "alt-bs", "alt-bspace":
+			chord = curses.AltBS
+		case "tab":
+			chord = curses.Tab
+		case "btab", "shift-tab":
+			chord = curses.BTab
+		case "esc":
+			chord = curses.ESC
+		case "del":
+			chord = curses.Del
+		case "home":
+			chord = curses.Home
+		case "end":
+			chord = curses.End
+		case "pgup", "page-up":
+			chord = curses.PgUp
+		case "pgdn", "page-down":
+			chord = curses.PgDn
+		case "shift-left":
+			chord = curses.SLeft
+		case "shift-right":
+			chord = curses.SRight
+		default:
+			if len(key) == 6 && strings.HasPrefix(lkey, "ctrl-") && isAlphabet(lkey[5]) {
+				chord = curses.CtrlA + int(lkey[5]) - 'a'
+			} else if len(key) == 5 && strings.HasPrefix(lkey, "alt-") && isAlphabet(lkey[4]) {
+				chord = curses.AltA + int(lkey[4]) - 'a'
+			} else if len(key) == 2 && strings.HasPrefix(lkey, "f") && key[1] >= '1' && key[1] <= '4' {
+				chord = curses.F1 + int(key[1]) - '1'
+			} else if utf8.RuneCountInString(key) == 1 {
+				chord = curses.AltZ + int([]rune(key)[0])
+			} else {
+				errorExit("unsupported key: " + key)
+			}
+		}
+		if chord > 0 {
+			chords[chord] = key
+		}
+	}
+	return chords
+}
+
+func parseTiebreak(str string) tiebreak {
+	switch strings.ToLower(str) {
+	case "length":
+		return byLength
+	case "index":
+		return byIndex
+	case "begin":
+		return byBegin
+	case "end":
+		return byEnd
+	default:
+		errorExit("invalid sort criterion: " + str)
+	}
+	return byLength
+}
+
+func dupeTheme(theme *curses.ColorTheme) *curses.ColorTheme {
+	dupe := *theme
+	return &dupe
+}
+
+func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme {
+	theme := dupeTheme(defaultTheme)
+	for _, str := range strings.Split(strings.ToLower(str), ",") {
+		switch str {
+		case "dark":
+			theme = dupeTheme(curses.Dark256)
+		case "light":
+			theme = dupeTheme(curses.Light256)
+		case "16":
+			theme = dupeTheme(curses.Default16)
+		case "bw", "no":
+			theme = nil
+		default:
+			fail := func() {
+				errorExit("invalid color specification: " + str)
+			}
+			// Color is disabled
+			if theme == nil {
+				errorExit("colors disabled; cannot customize colors")
+			}
+
+			pair := strings.Split(str, ":")
+			if len(pair) != 2 {
+				fail()
+			}
+			ansi32, err := strconv.Atoi(pair[1])
+			if err != nil || ansi32 < -1 || ansi32 > 255 {
+				fail()
+			}
+			ansi := int16(ansi32)
+			switch pair[0] {
+			case "fg":
+				theme.Fg = ansi
+				theme.UseDefault = theme.UseDefault && ansi < 0
+			case "bg":
+				theme.Bg = ansi
+				theme.UseDefault = theme.UseDefault && ansi < 0
+			case "fg+":
+				theme.Current = ansi
+			case "bg+":
+				theme.DarkBg = ansi
+			case "hl":
+				theme.Match = ansi
+			case "hl+":
+				theme.CurrentMatch = ansi
+			case "prompt":
+				theme.Prompt = ansi
+			case "spinner":
+				theme.Spinner = ansi
+			case "info":
+				theme.Info = ansi
+			case "pointer":
+				theme.Cursor = ansi
+			case "marker":
+				theme.Selected = ansi
+			case "header":
+				theme.Header = ansi
+			default:
+				fail()
+			}
+		}
+	}
+	return theme
+}
+
+var executeRegexp *regexp.Regexp
+
+func firstKey(keymap map[int]string) int {
+	for k := range keymap {
+		return k
+	}
+	return 0
+}
+
+const (
+	escapedColon = 0
+	escapedComma = 1
+)
+
+func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort bool, str string) (map[int]actionType, map[int]string, bool) {
+	if executeRegexp == nil {
+		// Backreferences are not supported.
+		// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
+		executeRegexp = regexp.MustCompile(
+			"(?s):execute:.*|:execute(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
+	}
+	masked := executeRegexp.ReplaceAllStringFunc(str, func(src string) string {
+		return ":execute(" + strings.Repeat(" ", len(src)-10) + ")"
+	})
+	masked = strings.Replace(masked, "::", string([]rune{escapedColon, ':'}), -1)
+	masked = strings.Replace(masked, ",:", string([]rune{escapedComma, ':'}), -1)
+
+	idx := 0
+	for _, pairStr := range strings.Split(masked, ",") {
+		origPairStr := str[idx : idx+len(pairStr)]
+		idx += len(pairStr) + 1
+
+		pair := strings.SplitN(pairStr, ":", 2)
+		if len(pair) < 2 {
+			errorExit("bind action not specified: " + origPairStr)
+		}
+		var key int
+		if len(pair[0]) == 1 && pair[0][0] == escapedColon {
+			key = ':' + curses.AltZ
+		} else if len(pair[0]) == 1 && pair[0][0] == escapedComma {
+			key = ',' + curses.AltZ
+		} else {
+			keys := parseKeyChords(pair[0], "key name required")
+			key = firstKey(keys)
+		}
+
+		act := origPairStr[len(pair[0])+1 : len(origPairStr)]
+		actLower := strings.ToLower(act)
+		switch actLower {
+		case "ignore":
+			keymap[key] = actIgnore
+		case "beginning-of-line":
+			keymap[key] = actBeginningOfLine
+		case "abort":
+			keymap[key] = actAbort
+		case "accept":
+			keymap[key] = actAccept
+		case "backward-char":
+			keymap[key] = actBackwardChar
+		case "backward-delete-char":
+			keymap[key] = actBackwardDeleteChar
+		case "backward-word":
+			keymap[key] = actBackwardWord
+		case "clear-screen":
+			keymap[key] = actClearScreen
+		case "delete-char":
+			keymap[key] = actDeleteChar
+		case "delete-char/eof":
+			keymap[key] = actDeleteCharEOF
+		case "end-of-line":
+			keymap[key] = actEndOfLine
+		case "cancel":
+			keymap[key] = actCancel
+		case "forward-char":
+			keymap[key] = actForwardChar
+		case "forward-word":
+			keymap[key] = actForwardWord
+		case "kill-line":
+			keymap[key] = actKillLine
+		case "kill-word":
+			keymap[key] = actKillWord
+		case "unix-line-discard", "line-discard":
+			keymap[key] = actUnixLineDiscard
+		case "unix-word-rubout", "word-rubout":
+			keymap[key] = actUnixWordRubout
+		case "yank":
+			keymap[key] = actYank
+		case "backward-kill-word":
+			keymap[key] = actBackwardKillWord
+		case "toggle-down":
+			keymap[key] = actToggleDown
+		case "toggle-up":
+			keymap[key] = actToggleUp
+		case "toggle-all":
+			keymap[key] = actToggleAll
+		case "select-all":
+			keymap[key] = actSelectAll
+		case "deselect-all":
+			keymap[key] = actDeselectAll
+		case "toggle":
+			keymap[key] = actToggle
+		case "down":
+			keymap[key] = actDown
+		case "up":
+			keymap[key] = actUp
+		case "page-up":
+			keymap[key] = actPageUp
+		case "page-down":
+			keymap[key] = actPageDown
+		case "previous-history":
+			keymap[key] = actPreviousHistory
+		case "next-history":
+			keymap[key] = actNextHistory
+		case "toggle-sort":
+			keymap[key] = actToggleSort
+			toggleSort = true
+		default:
+			if isExecuteAction(actLower) {
+				keymap[key] = actExecute
+				if act[7] == ':' {
+					execmap[key] = act[8:]
+				} else {
+					execmap[key] = act[8 : len(act)-1]
+				}
+			} else {
+				errorExit("unknown action: " + act)
+			}
+		}
+	}
+	return keymap, execmap, toggleSort
+}
+
+func isExecuteAction(str string) bool {
+	if !strings.HasPrefix(str, "execute") || len(str) < 9 {
+		return false
+	}
+	b := str[7]
+	e := str[len(str)-1]
+	if b == ':' || b == '(' && e == ')' || b == '[' && e == ']' ||
+		b == e && strings.ContainsAny(string(b), "~!@#$%^&*;/|") {
+		return true
+	}
+	return false
+}
+
+func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
+	keys := parseKeyChords(str, "key name required")
+	if len(keys) != 1 {
+		errorExit("multiple keys specified")
+	}
+	keymap[firstKey(keys)] = actToggleSort
+	return keymap
+}
+
+func readHeaderFile(filename string) []string {
+	content, err := ioutil.ReadFile(filename)
+	if err != nil {
+		errorExit("failed to read header file: " + filename)
+	}
+	return strings.Split(strings.TrimSuffix(string(content), "\n"), "\n")
+}
+
+func parseMargin(margin string) [4]string {
+	margins := strings.Split(margin, ",")
+	checked := func(str string) string {
+		if strings.HasSuffix(str, "%") {
+			val := atof(str[:len(str)-1])
+			if val < 0 {
+				errorExit("margin must be non-negative")
+			}
+			if val > 100 {
+				errorExit("margin too large")
+			}
+		} else {
+			val := atoi(str)
+			if val < 0 {
+				errorExit("margin must be non-negative")
+			}
+		}
+		return str
+	}
+	switch len(margins) {
+	case 1:
+		m := checked(margins[0])
+		return [4]string{m, m, m, m}
+	case 2:
+		tb := checked(margins[0])
+		rl := checked(margins[1])
+		return [4]string{tb, rl, tb, rl}
+	case 3:
+		t := checked(margins[0])
+		rl := checked(margins[1])
+		b := checked(margins[2])
+		return [4]string{t, rl, b, rl}
+	case 4:
+		return [4]string{
+			checked(margins[0]), checked(margins[1]),
+			checked(margins[2]), checked(margins[3])}
+	default:
+		errorExit("invalid margin: " + margin)
+	}
+	return defaultMargin()
+}
+
 func parseOptions(opts *Options, allArgs []string) {
+	keymap := make(map[int]actionType)
+	var historyMax int
+	if opts.History == nil {
+		historyMax = defaultHistoryMax
+	} else {
+		historyMax = opts.History.maxSize
+	}
+	setHistory := func(path string) {
+		h, e := NewHistory(path, historyMax)
+		if e != nil {
+			errorExit(e.Error())
+		}
+		opts.History = h
+	}
+	setHistoryMax := func(max int) {
+		historyMax = max
+		if historyMax < 1 {
+			errorExit("history max must be a positive integer")
+		}
+		if opts.History != nil {
+			opts.History.maxSize = historyMax
+		}
+	}
 	for i := 0; i < len(allArgs); i++ {
 		arg := allArgs[i]
 		switch arg {
@@ -205,6 +689,23 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "-f", "--filter":
 			filter := nextString(allArgs, &i, "query string required")
 			opts.Filter = &filter
+		case "--expect":
+			opts.Expect = parseKeyChords(nextString(allArgs, &i, "key names required"), "key names required")
+		case "--tiebreak":
+			opts.Tiebreak = parseTiebreak(nextString(allArgs, &i, "sort criterion required"))
+		case "--bind":
+			keymap, opts.Execmap, opts.ToggleSort =
+				parseKeymap(keymap, opts.Execmap, opts.ToggleSort, nextString(allArgs, &i, "bind expression required"))
+		case "--color":
+			spec := optionalNextString(allArgs, &i)
+			if len(spec) == 0 {
+				opts.Theme = defaultTheme()
+			} else {
+				opts.Theme = parseTheme(opts.Theme, spec)
+			}
+		case "--toggle-sort":
+			keymap = checkToggleSort(keymap, nextString(allArgs, &i, "key name required"))
+			opts.ToggleSort = true
 		case "-d", "--delimiter":
 			opts.Delimiter = delimiterRegexp(nextString(allArgs, &i, "delimiter required"))
 		case "-n", "--nth":
@@ -227,12 +728,16 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Multi = true
 		case "+m", "--no-multi":
 			opts.Multi = false
+		case "--ansi":
+			opts.Ansi = true
+		case "--no-ansi":
+			opts.Ansi = false
 		case "--no-mouse":
 			opts.Mouse = false
 		case "+c", "--no-color":
-			opts.Color = false
+			opts.Theme = nil
 		case "+2", "--no-256":
-			opts.Color256 = false
+			opts.Theme = curses.Default16
 		case "--black":
 			opts.Black = true
 		case "--no-black":
@@ -241,6 +746,18 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Reverse = true
 		case "--no-reverse":
 			opts.Reverse = false
+		case "--cycle":
+			opts.Cycle = true
+		case "--no-cycle":
+			opts.Cycle = false
+		case "--hscroll":
+			opts.Hscroll = true
+		case "--no-hscroll":
+			opts.Hscroll = false
+		case "--inline-info":
+			opts.InlineInfo = true
+		case "--no-inline-info":
+			opts.InlineInfo = false
 		case "-1", "--select-1":
 			opts.Select1 = true
 		case "+1", "--no-select-1":
@@ -249,6 +766,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Exit0 = true
 		case "+0", "--no-exit-0":
 			opts.Exit0 = false
+		case "--read0":
+			opts.ReadZero = true
+		case "--no-read0":
+			opts.ReadZero = false
 		case "--print-query":
 			opts.PrintQuery = true
 		case "--no-print-query":
@@ -261,29 +782,95 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Sync = false
 		case "--async":
 			opts.Sync = false
+		case "--no-history":
+			opts.History = nil
+		case "--history":
+			setHistory(nextString(allArgs, &i, "history file path required"))
+		case "--history-size":
+			setHistoryMax(nextInt(allArgs, &i, "history max size required"))
+		case "--no-header-file":
+			opts.Header = []string{}
+		case "--no-header-lines":
+			opts.HeaderLines = 0
+		case "--header-file":
+			opts.Header = readHeaderFile(
+				nextString(allArgs, &i, "header file name required"))
+			opts.HeaderLines = 0
+		case "--header-lines":
+			opts.Header = []string{}
+			opts.HeaderLines = atoi(
+				nextString(allArgs, &i, "number of header lines required"))
+		case "--no-margin":
+			opts.Margin = defaultMargin()
+		case "--margin":
+			opts.Margin = parseMargin(
+				nextString(allArgs, &i, "margin required (TRBL / TB,RL / T,RL,B / T,R,B,L)"))
 		case "--version":
 			opts.Version = true
 		default:
-			if match, value := optString(arg, "-q|--query="); match {
+			if match, value := optString(arg, "-q", "--query="); match {
 				opts.Query = value
-			} else if match, value := optString(arg, "-f|--filter="); match {
+			} else if match, value := optString(arg, "-f", "--filter="); match {
 				opts.Filter = &value
-			} else if match, value := optString(arg, "-d|--delimiter="); match {
+			} else if match, value := optString(arg, "-d", "--delimiter="); match {
 				opts.Delimiter = delimiterRegexp(value)
 			} else if match, value := optString(arg, "--prompt="); match {
 				opts.Prompt = value
-			} else if match, value := optString(arg, "-n|--nth="); match {
+			} else if match, value := optString(arg, "-n", "--nth="); match {
 				opts.Nth = splitNth(value)
 			} else if match, value := optString(arg, "--with-nth="); match {
 				opts.WithNth = splitNth(value)
-			} else if match, _ := optString(arg, "-s|--sort="); match {
+			} else if match, _ := optString(arg, "-s", "--sort="); match {
 				opts.Sort = 1 // Don't care
+			} else if match, value := optString(arg, "--toggle-sort="); match {
+				keymap = checkToggleSort(keymap, value)
+				opts.ToggleSort = true
+			} else if match, value := optString(arg, "--expect="); match {
+				opts.Expect = parseKeyChords(value, "key names required")
+			} else if match, value := optString(arg, "--tiebreak="); match {
+				opts.Tiebreak = parseTiebreak(value)
+			} else if match, value := optString(arg, "--color="); match {
+				opts.Theme = parseTheme(opts.Theme, value)
+			} else if match, value := optString(arg, "--bind="); match {
+				keymap, opts.Execmap, opts.ToggleSort =
+					parseKeymap(keymap, opts.Execmap, opts.ToggleSort, value)
+			} else if match, value := optString(arg, "--history="); match {
+				setHistory(value)
+			} else if match, value := optString(arg, "--history-size="); match {
+				setHistoryMax(atoi(value))
+			} else if match, value := optString(arg, "--header-file="); match {
+				opts.Header = readHeaderFile(value)
+				opts.HeaderLines = 0
+			} else if match, value := optString(arg, "--header-lines="); match {
+				opts.Header = []string{}
+				opts.HeaderLines = atoi(value)
+			} else if match, value := optString(arg, "--margin="); match {
+				opts.Margin = parseMargin(value)
 			} else {
 				errorExit("unknown option: " + arg)
 			}
 		}
 	}
 
+	if opts.HeaderLines < 0 {
+		errorExit("header lines must be a non-negative integer")
+	}
+
+	// Change default actions for CTRL-N / CTRL-P when --history is used
+	if opts.History != nil {
+		if _, prs := keymap[curses.CtrlP]; !prs {
+			keymap[curses.CtrlP] = actPreviousHistory
+		}
+		if _, prs := keymap[curses.CtrlN]; !prs {
+			keymap[curses.CtrlN] = actNextHistory
+		}
+	}
+
+	// Override default key bindings
+	for key, act := range keymap {
+		opts.Keymap[key] = act
+	}
+
 	// If we're not using extended search mode, --nth option becomes irrelevant
 	// if it contains the whole range
 	if opts.Mode == ModeFuzzy || len(opts.Nth) == 1 {

src/options_test.go

@@ -1,6 +1,11 @@
 package fzf
 
-import "testing"
+import (
+	"fmt"
+	"testing"
+
+	"github.com/junegunn/fzf/src/curses"
+)
 
 func TestDelimiterRegex(t *testing.T) {
 	rx := delimiterRegexp("*")
@@ -65,3 +70,201 @@ func TestIrrelevantNth(t *testing.T) {
 		}
 	}
 }
+
+func TestParseKeys(t *testing.T) {
+	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g", "")
+	check := func(i int, s string) {
+		if pairs[i] != s {
+			t.Errorf("%s != %s", pairs[i], s)
+		}
+	}
+	if len(pairs) != 9 {
+		t.Error(9)
+	}
+	check(curses.CtrlZ, "ctrl-z")
+	check(curses.AltZ, "alt-z")
+	check(curses.F2, "f2")
+	check(curses.AltZ+'@', "@")
+	check(curses.AltA, "Alt-a")
+	check(curses.AltZ+'!', "!")
+	check(curses.CtrlA+'g'-'a', "ctrl-G")
+	check(curses.AltZ+'J', "J")
+	check(curses.AltZ+'g', "g")
+
+	// Synonyms
+	pairs = parseKeyChords("enter,Return,space,tab,btab,esc,up,down,left,right", "")
+	if len(pairs) != 9 {
+		t.Error(9)
+	}
+	check(curses.CtrlM, "Return")
+	check(curses.AltZ+' ', "space")
+	check(curses.Tab, "tab")
+	check(curses.BTab, "btab")
+	check(curses.ESC, "esc")
+	check(curses.Up, "up")
+	check(curses.Down, "down")
+	check(curses.Left, "left")
+	check(curses.Right, "right")
+
+	pairs = parseKeyChords("Tab,Ctrl-I,PgUp,page-up,pgdn,Page-Down,Home,End,Alt-BS,Alt-BSpace,shift-left,shift-right,btab,shift-tab,return,Enter,bspace", "")
+	if len(pairs) != 11 {
+		t.Error(11)
+	}
+	check(curses.Tab, "Ctrl-I")
+	check(curses.PgUp, "page-up")
+	check(curses.PgDn, "Page-Down")
+	check(curses.Home, "Home")
+	check(curses.End, "End")
+	check(curses.AltBS, "Alt-BSpace")
+	check(curses.SLeft, "shift-left")
+	check(curses.SRight, "shift-right")
+	check(curses.BTab, "shift-tab")
+	check(curses.CtrlM, "Enter")
+	check(curses.BSpace, "bspace")
+}
+
+func TestParseKeysWithComma(t *testing.T) {
+	checkN := func(a int, b int) {
+		if a != b {
+			t.Errorf("%d != %d", a, b)
+		}
+	}
+	check := func(pairs map[int]string, i int, s string) {
+		if pairs[i] != s {
+			t.Errorf("%s != %s", pairs[i], s)
+		}
+	}
+
+	pairs := parseKeyChords(",", "")
+	checkN(len(pairs), 1)
+	check(pairs, curses.AltZ+',', ",")
+
+	pairs = parseKeyChords(",,a,b", "")
+	checkN(len(pairs), 3)
+	check(pairs, curses.AltZ+'a', "a")
+	check(pairs, curses.AltZ+'b', "b")
+	check(pairs, curses.AltZ+',', ",")
+
+	pairs = parseKeyChords("a,b,,", "")
+	checkN(len(pairs), 3)
+	check(pairs, curses.AltZ+'a', "a")
+	check(pairs, curses.AltZ+'b', "b")
+	check(pairs, curses.AltZ+',', ",")
+
+	pairs = parseKeyChords("a,,,b", "")
+	checkN(len(pairs), 3)
+	check(pairs, curses.AltZ+'a', "a")
+	check(pairs, curses.AltZ+'b', "b")
+	check(pairs, curses.AltZ+',', ",")
+
+	pairs = parseKeyChords("a,,,b,c", "")
+	checkN(len(pairs), 4)
+	check(pairs, curses.AltZ+'a', "a")
+	check(pairs, curses.AltZ+'b', "b")
+	check(pairs, curses.AltZ+'c', "c")
+	check(pairs, curses.AltZ+',', ",")
+
+	pairs = parseKeyChords(",,,", "")
+	checkN(len(pairs), 1)
+	check(pairs, curses.AltZ+',', ",")
+}
+
+func TestBind(t *testing.T) {
+	check := func(action actionType, expected actionType) {
+		if action != expected {
+			t.Errorf("%d != %d", action, expected)
+		}
+	}
+	checkString := func(action string, expected string) {
+		if action != expected {
+			t.Errorf("%d != %d", action, expected)
+		}
+	}
+	keymap := defaultKeymap()
+	execmap := make(map[int]string)
+	check(actBeginningOfLine, keymap[curses.CtrlA])
+	keymap, execmap, toggleSort :=
+		parseKeymap(keymap, execmap, false,
+			"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down,"+
+				"f1:execute(ls {}),f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
+				"alt-a:execute@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};"+
+				",,:abort,::accept,X:execute:\nfoobar,Y:execute(baz)")
+	if !toggleSort {
+		t.Errorf("toggleSort not set")
+	}
+	check(actKillLine, keymap[curses.CtrlA])
+	check(actToggleSort, keymap[curses.CtrlB])
+	check(actPageUp, keymap[curses.AltZ+'c'])
+	check(actAbort, keymap[curses.AltZ+','])
+	check(actAccept, keymap[curses.AltZ+':'])
+	check(actPageDown, keymap[curses.AltZ])
+	check(actExecute, keymap[curses.F1])
+	check(actExecute, keymap[curses.F2])
+	check(actExecute, keymap[curses.F3])
+	check(actExecute, keymap[curses.F4])
+	checkString("ls {}", execmap[curses.F1])
+	checkString("echo {}, {}, {}", execmap[curses.F2])
+	checkString("echo '({})'", execmap[curses.F3])
+	checkString("less {}", execmap[curses.F4])
+	checkString("echo (,),[,],/,:,;,%,{}", execmap[curses.AltA])
+	checkString("echo (,),[,],/,:,@,%,{}", execmap[curses.AltB])
+	checkString("\nfoobar,Y:execute(baz)", execmap[curses.AltZ+'X'])
+
+	for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
+		keymap, execmap, toggleSort =
+			parseKeymap(keymap, execmap, false, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
+		checkString("foobar", execmap[curses.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0])])
+	}
+
+	keymap, execmap, toggleSort = parseKeymap(keymap, execmap, false, "f1:abort")
+	if toggleSort {
+		t.Errorf("toggleSort set")
+	}
+	check(actAbort, keymap[curses.F1])
+}
+
+func TestColorSpec(t *testing.T) {
+	theme := curses.Dark256
+	dark := parseTheme(theme, "dark")
+	if *dark != *theme {
+		t.Errorf("colors should be equivalent")
+	}
+	if dark == theme {
+		t.Errorf("point should not be equivalent")
+	}
+
+	light := parseTheme(theme, "dark,light")
+	if *light == *theme {
+		t.Errorf("should not be equivalent")
+	}
+	if *light != *curses.Light256 {
+		t.Errorf("colors should be equivalent")
+	}
+	if light == theme {
+		t.Errorf("point should not be equivalent")
+	}
+
+	customized := parseTheme(theme, "fg:231,bg:232")
+	if customized.Fg != 231 || customized.Bg != 232 {
+		t.Errorf("color not customized")
+	}
+	if *curses.Dark256 == *customized {
+		t.Errorf("colors should not be equivalent")
+	}
+	customized.Fg = curses.Dark256.Fg
+	customized.Bg = curses.Dark256.Bg
+	if *curses.Dark256 == *customized {
+		t.Errorf("colors should now be equivalent")
+	}
+
+	customized = parseTheme(theme, "fg:231,dark,bg:232")
+	if customized.Fg != curses.Dark256.Fg || customized.Bg == curses.Dark256.Bg {
+		t.Errorf("color not customized")
+	}
+	if customized.UseDefault {
+		t.Errorf("not using default colors")
+	}
+	if !curses.Dark256.UseDefault {
+		t.Errorf("using default colors")
+	}
+}

src/pattern.go

@@ -8,8 +8,6 @@ import (
 	"github.com/junegunn/fzf/src/algo"
 )
 
-const uppercaseLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-
 // fuzzy
 // 'exact
 // ^exact-prefix
@@ -26,13 +24,15 @@ const (
 	termExact
 	termPrefix
 	termSuffix
+	termEqual
 )
 
 type term struct {
-	typ      termType
-	inv      bool
-	text     []rune
-	origText []rune
+	typ           termType
+	inv           bool
+	text          []rune
+	caseSensitive bool
+	origText      []rune
 }
 
 // Pattern represents search pattern
@@ -44,7 +44,7 @@ type Pattern struct {
 	hasInvTerm    bool
 	delimiter     *regexp.Regexp
 	nth           []Range
-	procFun       map[termType]func(bool, *string, []rune) (int, int)
+	procFun       map[termType]func(bool, []rune, []rune) (int, int)
 }
 
 var (
@@ -54,17 +54,21 @@ var (
 )
 
 func init() {
-	// We can uniquely identify the pattern for a given string since
-	// mode and caseMode do not change while the program is running
-	_patternCache = make(map[string]*Pattern)
 	_splitRegex = regexp.MustCompile("\\s+")
-	_cache = NewChunkCache()
+	clearPatternCache()
+	clearChunkCache()
 }
 
 func clearPatternCache() {
+	// We can uniquely identify the pattern for a given string since
+	// mode and caseMode do not change while the program is running
 	_patternCache = make(map[string]*Pattern)
 }
 
+func clearChunkCache() {
+	_cache = NewChunkCache()
+}
+
 // BuildPattern builds Pattern object from the given arguments
 func BuildPattern(mode Mode, caseMode Case,
 	nth []Range, delimiter *regexp.Regexp, runes []rune) *Pattern {
@@ -85,36 +89,35 @@ func BuildPattern(mode Mode, caseMode Case,
 	caseSensitive, hasInvTerm := true, false
 	terms := []term{}
 
-	switch caseMode {
-	case CaseSmart:
-		if !strings.ContainsAny(asString, uppercaseLetters) {
-			runes, caseSensitive = []rune(strings.ToLower(asString)), false
-		}
-	case CaseIgnore:
-		runes, caseSensitive = []rune(strings.ToLower(asString)), false
-	}
-
 	switch mode {
 	case ModeExtended, ModeExtendedExact:
-		terms = parseTerms(mode, string(runes))
+		terms = parseTerms(mode, caseMode, asString)
 		for _, term := range terms {
 			if term.inv {
 				hasInvTerm = true
 			}
 		}
+	default:
+		lowerString := strings.ToLower(asString)
+		caseSensitive = caseMode == CaseRespect ||
+			caseMode == CaseSmart && lowerString != asString
+		if !caseSensitive {
+			asString = lowerString
+		}
 	}
 
 	ptr := &Pattern{
 		mode:          mode,
 		caseSensitive: caseSensitive,
-		text:          runes,
+		text:          []rune(asString),
 		terms:         terms,
 		hasInvTerm:    hasInvTerm,
 		nth:           nth,
 		delimiter:     delimiter,
-		procFun:       make(map[termType]func(bool, *string, []rune) (int, int))}
+		procFun:       make(map[termType]func(bool, []rune, []rune) (int, int))}
 
 	ptr.procFun[termFuzzy] = algo.FuzzyMatch
+	ptr.procFun[termEqual] = algo.EqualMatch
 	ptr.procFun[termExact] = algo.ExactMatchNaive
 	ptr.procFun[termPrefix] = algo.PrefixMatch
 	ptr.procFun[termSuffix] = algo.SuffixMatch
@@ -123,11 +126,17 @@ func BuildPattern(mode Mode, caseMode Case,
 	return ptr
 }
 
-func parseTerms(mode Mode, str string) []term {
+func parseTerms(mode Mode, caseMode Case, str string) []term {
 	tokens := _splitRegex.Split(str, -1)
 	terms := []term{}
 	for _, token := range tokens {
 		typ, inv, text := termFuzzy, false, token
+		lowerText := strings.ToLower(text)
+		caseSensitive := caseMode == CaseRespect ||
+			caseMode == CaseSmart && text != lowerText
+		if !caseSensitive {
+			text = lowerText
+		}
 		origText := []rune(text)
 		if mode == ModeExtendedExact {
 			typ = termExact
@@ -144,8 +153,13 @@ func parseTerms(mode Mode, str string) []term {
 				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
-			typ = termPrefix
-			text = text[1:]
+			if strings.HasSuffix(text, "$") {
+				typ = termEqual
+				text = text[1 : len(text)-1]
+			} else {
+				typ = termPrefix
+				text = text[1:]
+			}
 		} else if strings.HasSuffix(text, "$") {
 			typ = termSuffix
 			text = text[:len(text)-1]
@@ -153,10 +167,11 @@ func parseTerms(mode Mode, str string) []term {
 
 		if len(text) > 0 {
 			terms = append(terms, term{
-				typ:      typ,
-				inv:      inv,
-				text:     []rune(text),
-				origText: origText})
+				typ:           typ,
+				inv:           inv,
+				text:          []rune(text),
+				caseSensitive: caseSensitive,
+				origText:      origText})
 		}
 	}
 	return terms
@@ -264,12 +279,13 @@ func dupItem(item *Item, offsets []Offset) *Item {
 		transformed: item.transformed,
 		index:       item.index,
 		offsets:     offsets,
+		colors:      item.colors,
 		rank:        Rank{0, 0, item.index}}
 }
 
 func (p *Pattern) fuzzyMatch(item *Item) (int, int) {
 	input := p.prepareInput(item)
-	return p.iter(algo.FuzzyMatch, input, p.text)
+	return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.text)
 }
 
 func (p *Pattern) extendedMatch(item *Item) []Offset {
@@ -277,7 +293,7 @@ func (p *Pattern) extendedMatch(item *Item) []Offset {
 	offsets := []Offset{}
 	for _, term := range p.terms {
 		pfun := p.procFun[term.typ]
-		if sidx, eidx := p.iter(pfun, input, term.text); sidx >= 0 {
+		if sidx, eidx := p.iter(pfun, input, term.caseSensitive, term.text); sidx >= 0 {
 			if term.inv {
 				break
 			}
@@ -289,30 +305,27 @@ func (p *Pattern) extendedMatch(item *Item) []Offset {
 	return offsets
 }
 
-func (p *Pattern) prepareInput(item *Item) *Transformed {
+func (p *Pattern) prepareInput(item *Item) []Token {
 	if item.transformed != nil {
 		return item.transformed
 	}
 
-	var ret *Transformed
+	var ret []Token
 	if len(p.nth) > 0 {
 		tokens := Tokenize(item.text, p.delimiter)
 		ret = Transform(tokens, p.nth)
 	} else {
-		trans := Transformed{
-			whole: item.text,
-			parts: []Token{Token{text: item.text, prefixLength: 0}}}
-		ret = &trans
+		ret = []Token{Token{text: item.text, prefixLength: 0}}
 	}
 	item.transformed = ret
 	return ret
 }
 
-func (p *Pattern) iter(pfun func(bool, *string, []rune) (int, int),
-	inputs *Transformed, pattern []rune) (int, int) {
-	for _, part := range inputs.parts {
+func (p *Pattern) iter(pfun func(bool, []rune, []rune) (int, int),
+	tokens []Token, caseSensitive bool, pattern []rune) (int, int) {
+	for _, part := range tokens {
 		prefixLength := part.prefixLength
-		if sidx, eidx := pfun(p.caseSensitive, part.text, pattern); sidx >= 0 {
+		if sidx, eidx := pfun(caseSensitive, part.text, pattern); sidx >= 0 {
 			return sidx + prefixLength, eidx + prefixLength
 		}
 	}

src/pattern_test.go

@@ -1,15 +1,16 @@
 package fzf
 
 import (
+	"reflect"
 	"testing"
 
 	"github.com/junegunn/fzf/src/algo"
 )
 
 func TestParseTermsExtended(t *testing.T) {
-	terms := parseTerms(ModeExtended,
-		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
-	if len(terms) != 8 ||
+	terms := parseTerms(ModeExtended, CaseSmart,
+		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ ^iii$")
+	if len(terms) != 9 ||
 		terms[0].typ != termFuzzy || terms[0].inv ||
 		terms[1].typ != termExact || terms[1].inv ||
 		terms[2].typ != termPrefix || terms[2].inv ||
@@ -17,7 +18,8 @@ func TestParseTermsExtended(t *testing.T) {
 		terms[4].typ != termFuzzy || !terms[4].inv ||
 		terms[5].typ != termExact || !terms[5].inv ||
 		terms[6].typ != termPrefix || !terms[6].inv ||
-		terms[7].typ != termSuffix || !terms[7].inv {
+		terms[7].typ != termSuffix || !terms[7].inv ||
+		terms[8].typ != termEqual || terms[8].inv {
 		t.Errorf("%s", terms)
 	}
 	for idx, term := range terms {
@@ -31,7 +33,7 @@ func TestParseTermsExtended(t *testing.T) {
 }
 
 func TestParseTermsExtendedExact(t *testing.T) {
-	terms := parseTerms(ModeExtendedExact,
+	terms := parseTerms(ModeExtendedExact, CaseSmart,
 		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
 	if len(terms) != 8 ||
 		terms[0].typ != termExact || terms[0].inv || len(terms[0].text) != 3 ||
@@ -47,7 +49,7 @@ func TestParseTermsExtendedExact(t *testing.T) {
 }
 
 func TestParseTermsEmpty(t *testing.T) {
-	terms := parseTerms(ModeExtended, "' $ ^ !' !^ !$")
+	terms := parseTerms(ModeExtended, CaseSmart, "' $ ^ !' !^ !$")
 	if len(terms) != 0 {
 		t.Errorf("%s", terms)
 	}
@@ -58,13 +60,29 @@ func TestExact(t *testing.T) {
 	clearPatternCache()
 	pattern := BuildPattern(ModeExtended, CaseSmart,
 		[]Range{}, nil, []rune("'abc"))
-	str := "aabbcc abc"
-	sidx, eidx := algo.ExactMatchNaive(pattern.caseSensitive, &str, pattern.terms[0].text)
+	sidx, eidx := algo.ExactMatchNaive(
+		pattern.caseSensitive, []rune("aabbcc abc"), pattern.terms[0].text)
 	if sidx != 7 || eidx != 10 {
 		t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
 	}
 }
 
+func TestEqual(t *testing.T) {
+	defer clearPatternCache()
+	clearPatternCache()
+	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("^AbC$"))
+
+	match := func(str string, sidxExpected int, eidxExpected int) {
+		sidx, eidx := algo.EqualMatch(
+			pattern.caseSensitive, []rune(str), pattern.terms[0].text)
+		if sidx != sidxExpected || eidx != eidxExpected {
+			t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
+		}
+	}
+	match("ABC", -1, -1)
+	match("AbC", 0, 3)
+}
+
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
@@ -91,25 +109,23 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	strptr := func(str string) *string {
-		return &str
-	}
 	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("jg"))
-	tokens := Tokenize(strptr("junegunn"), nil)
+	tokens := Tokenize([]rune("junegunn"), nil)
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
+	origRunes := []rune("junegunn.choi")
 	for _, mode := range []Mode{ModeFuzzy, ModeExtended} {
 		chunk := Chunk{
 			&Item{
-				text:        strptr("junegunn"),
-				origText:    strptr("junegunn.choi"),
+				text:        []rune("junegunn"),
+				origText:    &origRunes,
 				transformed: trans},
 		}
 		pattern.mode = mode
 		matches := pattern.matchChunk(&chunk)
-		if *matches[0].text != "junegunn" || *matches[0].origText != "junegunn.choi" ||
+		if string(matches[0].text) != "junegunn" || string(*matches[0].origText) != "junegunn.choi" ||
 			matches[0].offsets[0][0] != 0 || matches[0].offsets[0][1] != 5 ||
-			matches[0].transformed != trans {
+			!reflect.DeepEqual(matches[0].transformed, trans) {
 			t.Error("Invalid match result", matches)
 		}
 	}

src/reader.go

@@ -9,12 +9,11 @@ import (
 	"github.com/junegunn/fzf/src/util"
 )
 
-const defaultCommand = `find * -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null`
-
 // Reader reads from command or standard input
 type Reader struct {
-	pusher   func(string)
+	pusher   func([]byte) bool
 	eventBox *util.EventBox
+	delimNil bool
 }
 
 // ReadSource reads data from the default command or from standard input
@@ -32,10 +31,25 @@ func (r *Reader) ReadSource() {
 }
 
 func (r *Reader) feed(src io.Reader) {
-	if scanner := bufio.NewScanner(src); scanner != nil {
-		for scanner.Scan() {
-			r.pusher(scanner.Text())
-			r.eventBox.Set(EvtReadNew, nil)
+	delim := byte('\n')
+	if r.delimNil {
+		delim = '\000'
+	}
+	reader := bufio.NewReader(src)
+	for {
+		// ReadBytes returns err != nil if and only if the returned data does not
+		// end in delim.
+		bytea, err := reader.ReadBytes(delim)
+		if len(bytea) > 0 {
+			if err == nil {
+				bytea = bytea[:len(bytea)-1]
+			}
+			if r.pusher(bytea) {
+				r.eventBox.Set(EvtReadNew, nil)
+			}
+		}
+		if err != nil {
+			break
 		}
 	}
 }

src/reader_test.go

@@ -10,7 +10,7 @@ func TestReadFromCommand(t *testing.T) {
 	strs := []string{}
 	eb := util.NewEventBox()
 	reader := Reader{
-		pusher:   func(s string) { strs = append(strs, s) },
+		pusher:   func(s []byte) bool { strs = append(strs, string(s)); return true },
 		eventBox: eb}
 
 	// Check EventBox

src/terminal.go

@@ -4,9 +4,11 @@ import (
 	"bytes"
 	"fmt"
 	"os"
+	"os/exec"
 	"os/signal"
 	"regexp"
 	"sort"
+	"strconv"
 	"strings"
 	"sync"
 	"syscall"
@@ -20,20 +22,33 @@ import (
 
 // Terminal represents terminal input/output
 type Terminal struct {
+	inlineInfo bool
 	prompt     string
 	reverse    bool
+	hscroll    bool
 	cx         int
 	cy         int
 	offset     int
 	yanked     []rune
 	input      []rune
 	multi      bool
+	sort       bool
+	toggleSort bool
+	expect     map[int]string
+	keymap     map[int]actionType
+	execmap    map[int]string
+	pressed    string
 	printQuery bool
+	history    *History
+	cycle      bool
+	header     []string
+	margin     [4]string
+	marginInt  [4]int
 	count      int
 	progress   int
 	reading    bool
 	merger     *Merger
-	selected   map[*string]selectedItem
+	selected   map[uint32]selectedItem
 	reqBox     *util.EventBox
 	eventBox   *util.EventBox
 	mutex      sync.Mutex
@@ -47,17 +62,17 @@ type selectedItem struct {
 	text *string
 }
 
-type ByTimeOrder []selectedItem
+type byTimeOrder []selectedItem
 
-func (a ByTimeOrder) Len() int {
+func (a byTimeOrder) Len() int {
 	return len(a)
 }
 
-func (a ByTimeOrder) Swap(i, j int) {
+func (a byTimeOrder) Swap(i, j int) {
 	a[i], a[j] = a[j], a[i]
 }
 
-func (a ByTimeOrder) Less(i, j int) bool {
+func (a byTimeOrder) Less(i, j int) bool {
 	return a[i].at.Before(a[j].at)
 }
 
@@ -67,6 +82,7 @@ var _runeWidths = make(map[rune]int)
 const (
 	reqPrompt util.EventType = iota
 	reqInfo
+	reqHeader
 	reqList
 	reqRefresh
 	reqRedraw
@@ -74,33 +90,133 @@ const (
 	reqQuit
 )
 
+type actionType int
+
 const (
-	initialDelay    = 100 * time.Millisecond
-	spinnerDuration = 200 * time.Millisecond
+	actIgnore actionType = iota
+	actInvalid
+	actRune
+	actMouse
+	actBeginningOfLine
+	actAbort
+	actAccept
+	actBackwardChar
+	actBackwardDeleteChar
+	actBackwardWord
+	actCancel
+	actClearScreen
+	actDeleteChar
+	actDeleteCharEOF
+	actEndOfLine
+	actForwardChar
+	actForwardWord
+	actKillLine
+	actKillWord
+	actUnixLineDiscard
+	actUnixWordRubout
+	actYank
+	actBackwardKillWord
+	actSelectAll
+	actDeselectAll
+	actToggle
+	actToggleAll
+	actToggleDown
+	actToggleUp
+	actDown
+	actUp
+	actPageUp
+	actPageDown
+	actToggleSort
+	actPreviousHistory
+	actNextHistory
+	actExecute
 )
 
+func defaultKeymap() map[int]actionType {
+	keymap := make(map[int]actionType)
+	keymap[C.Invalid] = actInvalid
+	keymap[C.CtrlA] = actBeginningOfLine
+	keymap[C.CtrlB] = actBackwardChar
+	keymap[C.CtrlC] = actAbort
+	keymap[C.CtrlG] = actAbort
+	keymap[C.CtrlQ] = actAbort
+	keymap[C.ESC] = actAbort
+	keymap[C.CtrlD] = actDeleteCharEOF
+	keymap[C.CtrlE] = actEndOfLine
+	keymap[C.CtrlF] = actForwardChar
+	keymap[C.CtrlH] = actBackwardDeleteChar
+	keymap[C.BSpace] = actBackwardDeleteChar
+	keymap[C.Tab] = actToggleDown
+	keymap[C.BTab] = actToggleUp
+	keymap[C.CtrlJ] = actDown
+	keymap[C.CtrlK] = actUp
+	keymap[C.CtrlL] = actClearScreen
+	keymap[C.CtrlM] = actAccept
+	keymap[C.CtrlN] = actDown
+	keymap[C.CtrlP] = actUp
+	keymap[C.CtrlU] = actUnixLineDiscard
+	keymap[C.CtrlW] = actUnixWordRubout
+	keymap[C.CtrlY] = actYank
+
+	keymap[C.AltB] = actBackwardWord
+	keymap[C.SLeft] = actBackwardWord
+	keymap[C.AltF] = actForwardWord
+	keymap[C.SRight] = actForwardWord
+	keymap[C.AltD] = actKillWord
+	keymap[C.AltBS] = actBackwardKillWord
+
+	keymap[C.Up] = actUp
+	keymap[C.Down] = actDown
+	keymap[C.Left] = actBackwardChar
+	keymap[C.Right] = actForwardChar
+
+	keymap[C.Home] = actBeginningOfLine
+	keymap[C.End] = actEndOfLine
+	keymap[C.Del] = actDeleteChar
+	keymap[C.PgUp] = actPageUp
+	keymap[C.PgDn] = actPageDown
+
+	keymap[C.Rune] = actRune
+	keymap[C.Mouse] = actMouse
+	return keymap
+}
+
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := []rune(opts.Query)
 	return &Terminal{
+		inlineInfo: opts.InlineInfo,
 		prompt:     opts.Prompt,
 		reverse:    opts.Reverse,
+		hscroll:    opts.Hscroll,
 		cx:         len(input),
 		cy:         0,
 		offset:     0,
 		yanked:     []rune{},
 		input:      input,
 		multi:      opts.Multi,
+		sort:       opts.Sort > 0,
+		toggleSort: opts.ToggleSort,
+		expect:     opts.Expect,
+		keymap:     opts.Keymap,
+		execmap:    opts.Execmap,
+		pressed:    "",
 		printQuery: opts.PrintQuery,
+		history:    opts.History,
+		margin:     opts.Margin,
+		marginInt:  [4]int{0, 0, 0, 0},
+		cycle:      opts.Cycle,
+		header:     opts.Header,
+		reading:    true,
 		merger:     EmptyMerger,
-		selected:   make(map[*string]selectedItem),
+		selected:   make(map[uint32]selectedItem),
 		reqBox:     util.NewEventBox(),
 		eventBox:   eventBox,
 		mutex:      sync.Mutex{},
 		suppress:   true,
 		startChan:  make(chan bool, 1),
 		initFunc: func() {
-			C.Init(opts.Color, opts.Color256, opts.Black, opts.Mouse)
+			C.Init(opts.Theme, opts.Black, opts.Mouse)
 		}}
 }
 
@@ -123,6 +239,22 @@ func (t *Terminal) UpdateCount(cnt int, final bool) {
 	}
 }
 
+// UpdateHeader updates the header
+func (t *Terminal) UpdateHeader(header []string, lines int) {
+	t.mutex.Lock()
+	t.header = make([]string, lines)
+	copy(t.header, header)
+	if !t.reverse {
+		reversed := make([]string, lines)
+		for idx, str := range t.header {
+			reversed[lines-idx-1] = str
+		}
+		t.header = reversed
+	}
+	t.mutex.Unlock()
+	t.reqBox.Set(reqHeader, nil)
+}
+
 // UpdateProgress updates the search progress
 func (t *Terminal) UpdateProgress(progress float32) {
 	t.mutex.Lock()
@@ -150,6 +282,9 @@ func (t *Terminal) output() {
 	if t.printQuery {
 		fmt.Println(string(t.input))
 	}
+	if len(t.expect) > 0 {
+		fmt.Println(t.pressed)
+	}
 	if len(t.selected) == 0 {
 		cnt := t.merger.Length()
 		if cnt > 0 && cnt > t.cy {
@@ -160,7 +295,7 @@ func (t *Terminal) output() {
 		for _, sel := range t.selected {
 			sels = append(sels, sel)
 		}
-		sort.Sort(ByTimeOrder(sels))
+		sort.Sort(byTimeOrder(sels))
 		for _, sel := range sels {
 			fmt.Println(*sel.text)
 		}
@@ -187,10 +322,50 @@ func displayWidth(runes []rune) int {
 	return l
 }
 
+const minWidth = 16
+const minHeight = 4
+
+func (t *Terminal) calculateMargins() {
+	screenWidth := C.MaxX()
+	screenHeight := C.MaxY()
+	for idx, str := range t.margin {
+		if str == "0" {
+			t.marginInt[idx] = 0
+		} else if strings.HasSuffix(str, "%") {
+			num, _ := strconv.ParseFloat(str[:len(str)-1], 64)
+			var val float64
+			if idx%2 == 0 {
+				val = float64(screenHeight)
+			} else {
+				val = float64(screenWidth)
+			}
+			t.marginInt[idx] = int(val * num * 0.01)
+		} else {
+			num, _ := strconv.Atoi(str)
+			t.marginInt[idx] = num
+		}
+	}
+	adjust := func(idx1 int, idx2 int, max int, min int) {
+		if max >= min {
+			margin := t.marginInt[idx1] + t.marginInt[idx2]
+			if max-margin < min {
+				desired := max - min
+				t.marginInt[idx1] = desired * t.marginInt[idx1] / margin
+				t.marginInt[idx2] = desired * t.marginInt[idx2] / margin
+			}
+		}
+	}
+	adjust(1, 3, screenWidth, minWidth)
+	adjust(0, 2, screenHeight, minHeight)
+}
+
 func (t *Terminal) move(y int, x int, clear bool) {
+	x += t.marginInt[3]
 	maxy := C.MaxY()
 	if !t.reverse {
-		y = maxy - y - 1
+		y = maxy - y - 1 - t.marginInt[2]
+	} else {
+		y += t.marginInt[0]
 	}
 
 	if clear {
@@ -211,15 +386,31 @@ func (t *Terminal) printPrompt() {
 }
 
 func (t *Terminal) printInfo() {
-	t.move(1, 0, true)
-	if t.reading {
-		duration := int64(spinnerDuration)
-		idx := (time.Now().UnixNano() % (duration * int64(len(_spinner)))) / duration
-		C.CPrint(C.ColSpinner, true, _spinner[idx])
+	if t.inlineInfo {
+		t.move(0, len(t.prompt)+displayWidth(t.input)+1, true)
+		if t.reading {
+			C.CPrint(C.ColSpinner, true, " < ")
+		} else {
+			C.CPrint(C.ColPrompt, true, " < ")
+		}
+	} else {
+		t.move(1, 0, true)
+		if t.reading {
+			duration := int64(spinnerDuration)
+			idx := (time.Now().UnixNano() % (duration * int64(len(_spinner)))) / duration
+			C.CPrint(C.ColSpinner, true, _spinner[idx])
+		}
+		t.move(1, 2, false)
 	}
 
-	t.move(1, 2, false)
 	output := fmt.Sprintf("%d/%d", t.merger.Length(), t.count)
+	if t.toggleSort {
+		if t.sort {
+			output += "/S"
+		} else {
+			output += "  "
+		}
+	}
 	if t.multi && len(t.selected) > 0 {
 		output += fmt.Sprintf(" (%d)", len(t.selected))
 	}
@@ -229,13 +420,51 @@ func (t *Terminal) printInfo() {
 	C.CPrint(C.ColInfo, false, output)
 }
 
+func (t *Terminal) maxHeight() int {
+	return C.MaxY() - t.marginInt[0] - t.marginInt[2]
+}
+
+func (t *Terminal) printHeader() {
+	if len(t.header) == 0 {
+		return
+	}
+	max := t.maxHeight()
+	var state *ansiState
+	for idx, lineStr := range t.header {
+		if !t.reverse {
+			idx = len(t.header) - idx - 1
+		}
+		line := idx + 2
+		if t.inlineInfo {
+			line--
+		}
+		if line >= max {
+			continue
+		}
+		trimmed, colors, newState := extractColor(lineStr, state)
+		state = newState
+		item := &Item{
+			text:   []rune(trimmed),
+			index:  0,
+			colors: colors,
+			rank:   Rank{0, 0, 0}}
+
+		t.move(line, 2, true)
+		t.printHighlighted(item, false, C.ColHeader, 0, false)
+	}
+}
+
 func (t *Terminal) printList() {
 	t.constrain()
 
-	maxy := maxItems()
+	maxy := t.maxItems()
 	count := t.merger.Length() - t.offset
 	for i := 0; i < maxy; i++ {
-		t.move(i+2, 0, true)
+		line := i + 2 + len(t.header)
+		if t.inlineInfo {
+			line--
+		}
+		t.move(line, 0, true)
 		if i < count {
 			t.printItem(t.merger.Get(i+t.offset), i == t.cy-t.offset)
 		}
@@ -243,15 +472,15 @@ func (t *Terminal) printList() {
 }
 
 func (t *Terminal) printItem(item *Item, current bool) {
-	_, selected := t.selected[item.text]
+	_, selected := t.selected[item.index]
 	if current {
 		C.CPrint(C.ColCursor, true, ">")
 		if selected {
-			C.CPrint(C.ColCurrent, true, ">")
+			C.CPrint(C.ColSelected, true, ">")
 		} else {
 			C.CPrint(C.ColCurrent, true, " ")
 		}
-		t.printHighlighted(item, true, C.ColCurrent, C.ColCurrentMatch)
+		t.printHighlighted(item, true, C.ColCurrent, C.ColCurrentMatch, true)
 	} else {
 		C.CPrint(C.ColCursor, true, " ")
 		if selected {
@@ -259,7 +488,7 @@ func (t *Terminal) printItem(item *Item, current bool) {
 		} else {
 			C.Print(" ")
 		}
-		t.printHighlighted(item, false, 0, C.ColMatch)
+		t.printHighlighted(item, false, 0, C.ColMatch, false)
 	}
 }
 
@@ -299,7 +528,7 @@ func trimLeft(runes []rune, width int) ([]rune, int32) {
 	return runes, trimmed
 }
 
-func (*Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int) {
+func (t *Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int, current bool) {
 	var maxe int32
 	for _, offset := range item.offsets {
 		if offset[1] > maxe {
@@ -308,57 +537,71 @@ func (*Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int) {
 	}
 
 	// Overflow
-	text := []rune(*item.text)
-	offsets := item.offsets
-	maxWidth := C.MaxX() - 3
+	text := make([]rune, len(item.text))
+	copy(text, item.text)
+	offsets := item.colorOffsets(col2, bold, current)
+	maxWidth := C.MaxX() - 3 - t.marginInt[1] - t.marginInt[3]
 	fullWidth := displayWidth(text)
 	if fullWidth > maxWidth {
-		// Stri..
-		matchEndWidth := displayWidth(text[:maxe])
-		if matchEndWidth <= maxWidth-2 {
+		if t.hscroll {
+			// Stri..
+			matchEndWidth := displayWidth(text[:maxe])
+			if matchEndWidth <= maxWidth-2 {
+				text, _ = trimRight(text, maxWidth-2)
+				text = append(text, []rune("..")...)
+			} else {
+				// Stri..
+				if matchEndWidth < fullWidth-2 {
+					text = append(text[:maxe], []rune("..")...)
+				}
+				// ..ri..
+				var diff int32
+				text, diff = 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...)
+			}
+		} else {
 			text, _ = trimRight(text, maxWidth-2)
 			text = append(text, []rune("..")...)
-		} else {
-			// Stri..
-			if matchEndWidth < fullWidth-2 {
-				text = append(text[:maxe], []rune("..")...)
-			}
-			// ..ri..
-			var diff int32
-			text, diff = trimLeft(text, maxWidth-2)
 
-			// Transform offsets
-			offsets = make([]Offset, len(item.offsets))
-			for idx, offset := range item.offsets {
-				b, e := offset[0], offset[1]
-				b += 2 - diff
-				e += 2 - diff
-				b = util.Max32(b, 2)
-				if b < e {
-					offsets[idx] = Offset{b, e}
-				}
+			for idx, offset := range offsets {
+				offsets[idx].offset[0] = util.Min32(offset.offset[0], int32(maxWidth-2))
+				offsets[idx].offset[1] = util.Min32(offset.offset[1], int32(maxWidth))
 			}
-			text = append([]rune(".."), text...)
 		}
 	}
 
-	sort.Sort(ByOrder(offsets))
 	var index int32
 	var substr string
 	var prefixWidth int
+	maxOffset := int32(len(text))
 	for _, offset := range offsets {
-		b := util.Max32(index, offset[0])
-		e := util.Max32(index, offset[1])
+		b := util.Constrain32(offset.offset[0], index, maxOffset)
+		e := util.Constrain32(offset.offset[1], index, maxOffset)
 
 		substr, prefixWidth = processTabs(text[index:b], prefixWidth)
 		C.CPrint(col1, bold, substr)
 
-		substr, prefixWidth = processTabs(text[b:e], prefixWidth)
-		C.CPrint(col2, bold, substr)
+		if b < e {
+			substr, prefixWidth = processTabs(text[b:e], prefixWidth)
+			C.CPrint(offset.color, offset.bold, substr)
+		}
 
 		index = e
+		if index >= maxOffset {
+			break
+		}
 	}
-	if index < int32(len(text)) {
+	if index < maxOffset {
 		substr, _ = processTabs(text[index:], prefixWidth)
 		C.CPrint(col1, bold, substr)
 	}
@@ -380,9 +623,11 @@ func processTabs(runes []rune, prefixWidth int) (string, int) {
 }
 
 func (t *Terminal) printAll() {
+	t.calculateMargins()
 	t.printList()
-	t.printInfo()
 	t.printPrompt()
+	t.printInfo()
+	t.printHeader()
 }
 
 func (t *Terminal) refresh() {
@@ -437,16 +682,33 @@ func (t *Terminal) rubout(pattern string) {
 	t.input = append(t.input[:t.cx], after...)
 }
 
+func keyMatch(key int, event C.Event) bool {
+	return event.Type == key || event.Type == C.Rune && int(event.Char) == key-C.AltZ
+}
+
+func executeCommand(template string, current string) {
+	command := strings.Replace(template, "{}", fmt.Sprintf("%q", current), -1)
+	cmd := exec.Command("sh", "-c", command)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	C.Endwin()
+	cmd.Run()
+	C.Refresh()
+}
+
 // Loop is called to start Terminal I/O
 func (t *Terminal) Loop() {
 	<-t.startChan
 	{ // Late initialization
 		t.mutex.Lock()
 		t.initFunc()
+		t.calculateMargins()
 		t.printPrompt()
 		t.placeCursor()
 		C.Refresh()
 		t.printInfo()
+		t.printHeader()
 		t.mutex.Unlock()
 		go func() {
 			timer := time.NewTimer(initialDelay)
@@ -462,6 +724,27 @@ func (t *Terminal) Loop() {
 				t.reqBox.Set(reqRedraw, nil)
 			}
 		}()
+
+		// Keep the spinner spinning
+		go func() {
+			for {
+				t.mutex.Lock()
+				reading := t.reading
+				t.mutex.Unlock()
+				if !reading {
+					break
+				}
+				time.Sleep(spinnerDuration)
+				t.reqBox.Set(reqInfo, nil)
+			}
+		}()
+	}
+
+	exit := func(code int) {
+		if code == 0 && t.history != nil {
+			t.history.append(string(t.input))
+		}
+		os.Exit(code)
 	}
 
 	go func() {
@@ -473,10 +756,15 @@ func (t *Terminal) Loop() {
 					switch req {
 					case reqPrompt:
 						t.printPrompt()
+						if t.inlineInfo {
+							t.printInfo()
+						}
 					case reqInfo:
 						t.printInfo()
 					case reqList:
 						t.printList()
+					case reqHeader:
+						t.printHeader()
 					case reqRefresh:
 						t.suppress = false
 					case reqRedraw:
@@ -487,10 +775,10 @@ func (t *Terminal) Loop() {
 					case reqClose:
 						C.Close()
 						t.output()
-						os.Exit(0)
+						exit(0)
 					case reqQuit:
 						C.Close()
-						os.Exit(1)
+						exit(1)
 					}
 				}
 				t.placeCursor()
@@ -515,119 +803,198 @@ func (t *Terminal) Loop() {
 				}
 			}
 		}
+		selectItem := func(item *Item) bool {
+			if _, found := t.selected[item.index]; !found {
+				t.selected[item.index] = selectedItem{time.Now(), item.StringPtr()}
+				return true
+			}
+			return false
+		}
+		toggleY := func(y int) {
+			item := t.merger.Get(y)
+			if !selectItem(item) {
+				delete(t.selected, item.index)
+			}
+		}
 		toggle := func() {
 			if t.cy < t.merger.Length() {
-				item := t.merger.Get(t.cy)
-				if _, found := t.selected[item.text]; !found {
-					var strptr *string
-					if item.origText != nil {
-						strptr = item.origText
-					} else {
-						strptr = item.text
-					}
-					t.selected[item.text] = selectedItem{time.Now(), strptr}
-				} else {
-					delete(t.selected, item.text)
-				}
+				toggleY(t.cy)
 				req(reqInfo)
 			}
 		}
-		switch event.Type {
-		case C.Invalid:
+		for key, ret := range t.expect {
+			if keyMatch(key, event) {
+				t.pressed = ret
+				req(reqClose)
+				break
+			}
+		}
+
+		action := t.keymap[event.Type]
+		mapkey := event.Type
+		if event.Type == C.Rune {
+			mapkey = int(event.Char) + int(C.AltZ)
+			if act, prs := t.keymap[mapkey]; prs {
+				action = act
+			}
+		}
+		switch action {
+		case actIgnore:
+		case actExecute:
+			if t.cy >= 0 && t.cy < t.merger.Length() {
+				item := t.merger.Get(t.cy)
+				executeCommand(t.execmap[mapkey], item.AsString())
+			}
+		case actInvalid:
 			t.mutex.Unlock()
 			continue
-		case C.CtrlA:
+		case actToggleSort:
+			t.sort = !t.sort
+			t.eventBox.Set(EvtSearchNew, t.sort)
+			t.mutex.Unlock()
+			continue
+		case actBeginningOfLine:
 			t.cx = 0
-		case C.CtrlB:
+		case actBackwardChar:
 			if t.cx > 0 {
 				t.cx--
 			}
-		case C.CtrlC, C.CtrlG, C.CtrlQ, C.ESC:
+		case actAbort:
 			req(reqQuit)
-		case C.CtrlD:
+		case actDeleteChar:
+			t.delChar()
+		case actDeleteCharEOF:
 			if !t.delChar() && t.cx == 0 {
 				req(reqQuit)
 			}
-		case C.CtrlE:
+		case actEndOfLine:
 			t.cx = len(t.input)
-		case C.CtrlF:
+		case actCancel:
+			if len(t.input) == 0 {
+				req(reqQuit)
+			} else {
+				t.yanked = t.input
+				t.input = []rune{}
+				t.cx = 0
+			}
+		case actForwardChar:
 			if t.cx < len(t.input) {
 				t.cx++
 			}
-		case C.CtrlH:
+		case actBackwardDeleteChar:
 			if t.cx > 0 {
 				t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
 				t.cx--
 			}
-		case C.Tab:
+		case actSelectAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					item := t.merger.Get(i)
+					selectItem(item)
+				}
+				req(reqList, reqInfo)
+			}
+		case actDeselectAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					item := t.merger.Get(i)
+					delete(t.selected, item.index)
+				}
+				req(reqList, reqInfo)
+			}
+		case actToggle:
+			if t.multi && t.merger.Length() > 0 {
+				toggle()
+				req(reqList)
+			}
+		case actToggleAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					toggleY(i)
+				}
+				req(reqList, reqInfo)
+			}
+		case actToggleDown:
 			if t.multi && t.merger.Length() > 0 {
 				toggle()
 				t.vmove(-1)
 				req(reqList)
 			}
-		case C.BTab:
+		case actToggleUp:
 			if t.multi && t.merger.Length() > 0 {
 				toggle()
 				t.vmove(1)
 				req(reqList)
 			}
-		case C.CtrlJ, C.CtrlN:
+		case actDown:
 			t.vmove(-1)
 			req(reqList)
-		case C.CtrlK, C.CtrlP:
+		case actUp:
 			t.vmove(1)
 			req(reqList)
-		case C.CtrlM:
+		case actAccept:
 			req(reqClose)
-		case C.CtrlL:
+		case actClearScreen:
 			req(reqRedraw)
-		case C.CtrlU:
+		case actUnixLineDiscard:
 			if t.cx > 0 {
 				t.yanked = copySlice(t.input[:t.cx])
 				t.input = t.input[t.cx:]
 				t.cx = 0
 			}
-		case C.CtrlW:
+		case actUnixWordRubout:
 			if t.cx > 0 {
 				t.rubout("\\s\\S")
 			}
-		case C.AltBS:
+		case actBackwardKillWord:
 			if t.cx > 0 {
 				t.rubout("[^[:alnum:]][[:alnum:]]")
 			}
-		case C.CtrlY:
+		case actYank:
 			suffix := copySlice(t.input[t.cx:])
 			t.input = append(append(t.input[:t.cx], t.yanked...), suffix...)
 			t.cx += len(t.yanked)
-		case C.Del:
-			t.delChar()
-		case C.PgUp:
-			t.vmove(maxItems() - 1)
+		case actPageUp:
+			t.vmove(t.maxItems() - 1)
 			req(reqList)
-		case C.PgDn:
-			t.vmove(-(maxItems() - 1))
+		case actPageDown:
+			t.vmove(-(t.maxItems() - 1))
 			req(reqList)
-		case C.AltB:
+		case actBackwardWord:
 			t.cx = findLastMatch("[^[:alnum:]][[:alnum:]]", string(t.input[:t.cx])) + 1
-		case C.AltF:
+		case actForwardWord:
 			t.cx += findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", string(t.input[t.cx:])) + 1
-		case C.AltD:
+		case actKillWord:
 			ncx := t.cx +
 				findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", string(t.input[t.cx:])) + 1
 			if ncx > t.cx {
 				t.yanked = copySlice(t.input[t.cx:ncx])
 				t.input = append(t.input[:t.cx], t.input[ncx:]...)
 			}
-		case C.Rune:
+		case actKillLine:
+			if t.cx < len(t.input) {
+				t.yanked = copySlice(t.input[t.cx:])
+				t.input = t.input[:t.cx]
+			}
+		case actRune:
 			prefix := copySlice(t.input[:t.cx])
 			t.input = append(append(prefix, event.Char), t.input[t.cx:]...)
 			t.cx++
-		case C.Mouse:
-			me := event.MouseEvent
-			mx, my := util.Constrain(me.X-len(t.prompt), 0, len(t.input)), me.Y
-			if !t.reverse {
-				my = C.MaxY() - my - 1
+		case actPreviousHistory:
+			if t.history != nil {
+				t.history.override(string(t.input))
+				t.input = []rune(t.history.previous())
+				t.cx = len(t.input)
 			}
+		case actNextHistory:
+			if t.history != nil {
+				t.history.override(string(t.input))
+				t.input = []rune(t.history.next())
+				t.cx = len(t.input)
+			}
+		case actMouse:
+			me := event.MouseEvent
+			mx, my := me.X, me.Y
 			if me.S != 0 {
 				// Scroll
 				if t.merger.Length() > 0 {
@@ -637,23 +1004,36 @@ func (t *Terminal) Loop() {
 					t.vmove(me.S)
 					req(reqList)
 				}
-			} else if me.Double {
-				// Double-click
-				if my >= 2 {
-					if t.vset(my-2) && t.cy < t.merger.Length() {
-						req(reqClose)
-					}
+			} else if mx >= t.marginInt[3] && mx < C.MaxX()-t.marginInt[1] &&
+				my >= t.marginInt[0] && my < C.MaxY()-t.marginInt[2] {
+				mx -= t.marginInt[3]
+				my -= t.marginInt[0]
+				mx = util.Constrain(mx-len(t.prompt), 0, len(t.input))
+				if !t.reverse {
+					my = t.maxHeight() - my - 1
 				}
-			} else if me.Down {
-				if my == 0 && mx >= 0 {
-					// Prompt
-					t.cx = mx
-				} else if my >= 2 {
-					// List
-					if t.vset(t.offset+my-2) && t.multi && me.Mod {
-						toggle()
+				min := 2 + len(t.header)
+				if t.inlineInfo {
+					min--
+				}
+				if me.Double {
+					// Double-click
+					if my >= min {
+						if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
+							req(reqClose)
+						}
+					}
+				} else if me.Down {
+					if my == 0 && mx >= 0 {
+						// Prompt
+						t.cx = mx
+					} else if my >= min {
+						// List
+						if t.vset(t.offset+my-min) && t.multi && me.Mod {
+							toggle()
+						}
+						req(reqList)
 					}
-					req(reqList)
 				}
 			}
 		}
@@ -661,7 +1041,7 @@ func (t *Terminal) Loop() {
 		t.mutex.Unlock() // Must be unlocked before touching reqBox
 
 		if changed {
-			t.eventBox.Set(EvtSearchNew, nil)
+			t.eventBox.Set(EvtSearchNew, t.sort)
 		}
 		for _, event := range events {
 			t.reqBox.Set(event, nil)
@@ -671,7 +1051,7 @@ func (t *Terminal) Loop() {
 
 func (t *Terminal) constrain() {
 	count := t.merger.Length()
-	height := C.MaxY() - 2
+	height := t.maxItems()
 	diffpos := t.cy - t.offset
 
 	t.cy = util.Constrain(t.cy, 0, count-1)
@@ -689,14 +1069,27 @@ func (t *Terminal) constrain() {
 		t.offset = util.Max(0, count-height)
 		t.cy = util.Constrain(t.offset+diffpos, 0, count-1)
 	}
+	t.offset = util.Max(0, t.offset)
 }
 
 func (t *Terminal) vmove(o int) {
 	if t.reverse {
-		t.vset(t.cy - o)
-	} else {
-		t.vset(t.cy + o)
+		o *= -1
 	}
+	dest := t.cy + o
+	if t.cycle {
+		max := t.merger.Length() - 1
+		if dest > max {
+			if t.cy == max {
+				dest = 0
+			}
+		} else if dest < 0 {
+			if t.cy == 0 {
+				dest = max
+			}
+		}
+	}
+	t.vset(dest)
 }
 
 func (t *Terminal) vset(o int) bool {
@@ -704,6 +1097,10 @@ func (t *Terminal) vset(o int) bool {
 	return t.cy == o
 }
 
-func maxItems() int {
-	return C.MaxY() - 2
+func (t *Terminal) maxItems() int {
+	max := t.maxHeight() - 2 - len(t.header)
+	if t.inlineInfo {
+		max++
+	}
+	return util.Max(max, 0)
 }

src/tokenizer.go

@@ -16,15 +16,9 @@ type Range struct {
 	end   int
 }
 
-// Transformed holds the result of tokenization and transformation
-type Transformed struct {
-	whole *string
-	parts []Token
-}
-
 // Token contains the tokenized part of the strings and its prefix length
 type Token struct {
-	text         *string
+	text         []rune
 	prefixLength int
 }
 
@@ -81,8 +75,7 @@ func withPrefixLengths(tokens []string, begin int) []Token {
 	for idx, token := range tokens {
 		// Need to define a new local variable instead of the reused token to take
 		// the pointer to it
-		str := token
-		ret[idx] = Token{text: &str, prefixLength: prefixLength}
+		ret[idx] = Token{text: []rune(token), prefixLength: prefixLength}
 		prefixLength += len([]rune(token))
 	}
 	return ret
@@ -94,13 +87,13 @@ const (
 	awkWhite
 )
 
-func awkTokenizer(input *string) ([]string, int) {
+func awkTokenizer(input []rune) ([]string, int) {
 	// 9, 32
 	ret := []string{}
 	str := []rune{}
 	prefixLength := 0
 	state := awkNil
-	for _, r := range []rune(*input) {
+	for _, r := range input {
 		white := r == 9 || r == 32
 		switch state {
 		case awkNil:
@@ -132,43 +125,50 @@ func awkTokenizer(input *string) ([]string, int) {
 }
 
 // Tokenize tokenizes the given string with the delimiter
-func Tokenize(str *string, delimiter *regexp.Regexp) []Token {
+func Tokenize(runes []rune, delimiter *regexp.Regexp) []Token {
 	if delimiter == nil {
 		// AWK-style (\S+\s*)
-		tokens, prefixLength := awkTokenizer(str)
+		tokens, prefixLength := awkTokenizer(runes)
 		return withPrefixLengths(tokens, prefixLength)
 	}
-	tokens := delimiter.FindAllString(*str, -1)
+	tokens := delimiter.FindAllString(string(runes), -1)
 	return withPrefixLengths(tokens, 0)
 }
 
-func joinTokens(tokens []Token) string {
-	ret := ""
+func joinTokens(tokens []Token) []rune {
+	ret := []rune{}
 	for _, token := range tokens {
-		ret += *token.text
+		ret = append(ret, token.text...)
+	}
+	return ret
+}
+
+func joinTokensAsRunes(tokens []Token) []rune {
+	ret := []rune{}
+	for _, token := range tokens {
+		ret = append(ret, token.text...)
 	}
 	return ret
 }
 
 // Transform is used to transform the input when --with-nth option is given
-func Transform(tokens []Token, withNth []Range) *Transformed {
+func Transform(tokens []Token, withNth []Range) []Token {
 	transTokens := make([]Token, len(withNth))
 	numTokens := len(tokens)
-	whole := ""
 	for idx, r := range withNth {
-		part := ""
+		part := []rune{}
 		minIdx := 0
 		if r.begin == r.end {
 			idx := r.begin
 			if idx == rangeEllipsis {
-				part += joinTokens(tokens)
+				part = append(part, joinTokensAsRunes(tokens)...)
 			} else {
 				if idx < 0 {
 					idx += numTokens + 1
 				}
 				if idx >= 1 && idx <= numTokens {
 					minIdx = idx - 1
-					part += *tokens[idx-1].text
+					part = append(part, tokens[idx-1].text...)
 				}
 			}
 		} else {
@@ -195,20 +195,17 @@ func Transform(tokens []Token, withNth []Range) *Transformed {
 			minIdx = util.Max(0, begin-1)
 			for idx := begin; idx <= end; idx++ {
 				if idx >= 1 && idx <= numTokens {
-					part += *tokens[idx-1].text
+					part = append(part, tokens[idx-1].text...)
 				}
 			}
 		}
-		whole += part
 		var prefixLength int
 		if minIdx < numTokens {
 			prefixLength = tokens[minIdx].prefixLength
 		} else {
 			prefixLength = 0
 		}
-		transTokens[idx] = Token{&part, prefixLength}
+		transTokens[idx] = Token{part, prefixLength}
 	}
-	return &Transformed{
-		whole: &whole,
-		parts: transTokens}
+	return transTokens
 }

src/tokenizer_test.go

@@ -43,14 +43,14 @@ func TestParseRange(t *testing.T) {
 func TestTokenize(t *testing.T) {
 	// AWK-style
 	input := "  abc:  def:  ghi  "
-	tokens := Tokenize(&input, nil)
-	if *tokens[0].text != "abc:  " || tokens[0].prefixLength != 2 {
+	tokens := Tokenize([]rune(input), nil)
+	if string(tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 {
 		t.Errorf("%s", tokens)
 	}
 
 	// With delimiter
-	tokens = Tokenize(&input, delimiterRegexp(":"))
-	if *tokens[0].text != "  abc:" || tokens[0].prefixLength != 0 {
+	tokens = Tokenize([]rune(input), delimiterRegexp(":"))
+	if string(tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 {
 		t.Errorf("%s", tokens)
 	}
 }
@@ -58,39 +58,39 @@ func TestTokenize(t *testing.T) {
 func TestTransform(t *testing.T) {
 	input := "  abc:  def:  ghi:  jkl"
 	{
-		tokens := Tokenize(&input, nil)
+		tokens := Tokenize([]rune(input), nil)
 		{
 			ranges := splitNth("1,2,3")
 			tx := Transform(tokens, ranges)
-			if *tx.whole != "abc:  def:  ghi:  " {
-				t.Errorf("%s", *tx)
+			if string(joinTokens(tx)) != "abc:  def:  ghi:  " {
+				t.Errorf("%s", tx)
 			}
 		}
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if *tx.whole != "abc:  def:  ghi:  def:  ghi:  jklabc:  " ||
-				len(tx.parts) != 4 ||
-				*tx.parts[0].text != "abc:  def:  " || tx.parts[0].prefixLength != 2 ||
-				*tx.parts[1].text != "ghi:  " || tx.parts[1].prefixLength != 14 ||
-				*tx.parts[2].text != "def:  ghi:  jkl" || tx.parts[2].prefixLength != 8 ||
-				*tx.parts[3].text != "abc:  " || tx.parts[3].prefixLength != 2 {
-				t.Errorf("%s", *tx)
+			if string(joinTokens(tx)) != "abc:  def:  ghi:  def:  ghi:  jklabc:  " ||
+				len(tx) != 4 ||
+				string(tx[0].text) != "abc:  def:  " || tx[0].prefixLength != 2 ||
+				string(tx[1].text) != "ghi:  " || tx[1].prefixLength != 14 ||
+				string(tx[2].text) != "def:  ghi:  jkl" || tx[2].prefixLength != 8 ||
+				string(tx[3].text) != "abc:  " || tx[3].prefixLength != 2 {
+				t.Errorf("%s", tx)
 			}
 		}
 	}
 	{
-		tokens := Tokenize(&input, delimiterRegexp(":"))
+		tokens := Tokenize([]rune(input), delimiterRegexp(":"))
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if *tx.whole != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
-				len(tx.parts) != 4 ||
-				*tx.parts[0].text != "  abc:  def:" || tx.parts[0].prefixLength != 0 ||
-				*tx.parts[1].text != "  ghi:" || tx.parts[1].prefixLength != 12 ||
-				*tx.parts[2].text != "  def:  ghi:  jkl" || tx.parts[2].prefixLength != 6 ||
-				*tx.parts[3].text != "  abc:" || tx.parts[3].prefixLength != 0 {
-				t.Errorf("%s", *tx)
+			if string(joinTokens(tx)) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
+				len(tx) != 4 ||
+				string(tx[0].text) != "  abc:  def:" || tx[0].prefixLength != 0 ||
+				string(tx[1].text) != "  ghi:" || tx[1].prefixLength != 12 ||
+				string(tx[2].text) != "  def:  ghi:  jkl" || tx[2].prefixLength != 6 ||
+				string(tx[3].text) != "  abc:" || tx[3].prefixLength != 0 {
+				t.Errorf("%s", tx)
 			}
 		}
 	}

src/util/eventbox.go

@@ -79,6 +79,7 @@ func (b *EventBox) Unwatch(events ...EventType) {
 	}
 }
 
+// WaitFor blocks the execution until the event is received
 func (b *EventBox) WaitFor(event EventType) {
 	looping := true
 	for looping {

src/util/util.go

@@ -6,6 +6,7 @@ import "C"
 import (
 	"os"
 	"time"
+	"unicode/utf8"
 )
 
 // Max returns the largest integer
@@ -19,6 +20,14 @@ func Max(first int, items ...int) int {
 	return max
 }
 
+// Min32 returns the smallest 32-bit integer
+func Min32(first int32, second int32) int32 {
+	if first <= second {
+		return first
+	}
+	return second
+}
+
 // Max32 returns the largest 32-bit integer
 func Max32(first int32, second int32) int32 {
 	if first > second {
@@ -27,6 +36,17 @@ func Max32(first int32, second int32) int32 {
 	return second
 }
 
+// Constrain32 limits the given 32-bit integer with the upper and lower bounds
+func Constrain32(val int32, min int32, max int32) int32 {
+	if val < min {
+		return min
+	}
+	if val > max {
+		return max
+	}
+	return val
+}
+
 // Constrain limits the given integer with the upper and lower bounds
 func Constrain(val int, min int, max int) int {
 	if val < min {
@@ -54,3 +74,29 @@ func DurWithin(
 func IsTty() bool {
 	return int(C.isatty(C.int(os.Stdin.Fd()))) != 0
 }
+
+func TrimRight(runes []rune) []rune {
+	var i int
+	for i = len(runes) - 1; i >= 0; i-- {
+		char := runes[i]
+		if char != ' ' && char != '\t' {
+			break
+		}
+	}
+	return runes[0 : i+1]
+}
+
+func BytesToRunes(bytea []byte) []rune {
+	runes := make([]rune, 0, len(bytea))
+	for i := 0; i < len(bytea); {
+		if bytea[i] < utf8.RuneSelf {
+			runes = append(runes, rune(bytea[i]))
+			i++
+		} else {
+			r, sz := utf8.DecodeRune(bytea[i:])
+			i += sz
+			runes = append(runes, r)
+		}
+	}
+	return runes
+}

test/fzf.vader

@@ -3,11 +3,14 @@ Execute (Setup):
   Log 'Test directory: ' . g:dir
 
 Execute (fzf#run with dir option):
+  let cwd = getcwd()
   let result = fzf#run({ 'options': '--filter=vdr', 'dir': g:dir })
   AssertEqual ['fzf.vader'], result
+  AssertEqual getcwd(), cwd
 
   let result = sort(fzf#run({ 'options': '--filter e', 'dir': g:dir }))
-  AssertEqual ['fzf.vader', 'test_go.rb', 'test_ruby.rb'], result
+  AssertEqual ['fzf.vader', 'test_go.rb'], result
+  AssertEqual getcwd(), cwd
 
 Execute (fzf#run with Funcref command):
   let g:ret = []
@@ -15,8 +18,8 @@ Execute (fzf#run with Funcref command):
     call add(g:ret, a:e)
   endfunction
   let result = sort(fzf#run({ 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
-  AssertEqual ['fzf.vader', 'test_go.rb', 'test_ruby.rb'], result
-  AssertEqual ['fzf.vader', 'test_go.rb', 'test_ruby.rb'], sort(g:ret)
+  AssertEqual ['fzf.vader', 'test_go.rb'], result
+  AssertEqual ['fzf.vader', 'test_go.rb'], sort(g:ret)
 
 Execute (fzf#run with string source):
   let result = sort(fzf#run({ 'source': 'echo hi', 'options': '-f i' }))

test/test_go.rb

@@ -4,6 +4,12 @@
 require 'minitest/autorun'
 require 'fileutils'
 
+DEFAULT_TIMEOUT = 20
+
+base = File.expand_path('../../', __FILE__)
+Dir.chdir base
+FZF = "#{base}/bin/fzf"
+
 class NilClass
   def include? str
     false
@@ -18,25 +24,13 @@ class NilClass
   end
 end
 
-module Temp
-  def readonce
-    name = self.class::TEMPNAME
-    waited = 0
-    while waited < 5
-      begin
-        data = `cat #{name}`
-        return data unless data.empty?
-      rescue
-        sleep 0.1
-        waited += 0.1
-      end
-    end
-    raise "failed to read tempfile"
-  ensure
-    while File.exists? name
-      File.unlink name rescue nil
-    end
+def wait
+  since = Time.now
+  while Time.now - since < DEFAULT_TIMEOUT
+    return if yield
+    sleep 0.05
   end
+  throw 'timeout'
 end
 
 class Shell
@@ -54,8 +48,6 @@ class Shell
 end
 
 class Tmux
-  include Temp
-
   TEMPNAME = '/tmp/fzf-test.txt'
 
   attr_reader :win
@@ -80,15 +72,6 @@ class Tmux
     end
   end
 
-  def closed?
-    !go("list-window -F '#I'").include?(win)
-  end
-
-  def close
-    send_keys 'C-c', 'C-u', 'exit', :Enter
-    wait { closed? }
-  end
-
   def kill
     go("kill-window -t #{win} 2> /dev/null")
   end
@@ -106,79 +89,79 @@ class Tmux
     go("send-keys -t #{target} #{args}")
   end
 
-  def capture opts = {}
-    timeout, pane = defaults(opts).values_at(:timeout, :pane)
-    waited = 0
-    loop do
-      go("capture-pane -t #{win}.#{pane} \\; save-buffer #{TEMPNAME}")
-      break if $?.exitstatus == 0
-
-      if waited > timeout
-        raise "Window not found"
-      end
-      waited += 0.1
-      sleep 0.1
+  def capture pane = 0
+    File.unlink TEMPNAME while File.exists? TEMPNAME
+    wait do
+      go("capture-pane -t #{win}.#{pane} \\; save-buffer #{TEMPNAME} 2> /dev/null")
+      $?.exitstatus == 0
     end
-    readonce.split($/)[0, @lines].reverse.drop_while(&:empty?).reverse
+    File.read(TEMPNAME).split($/)[0, @lines].reverse.drop_while(&:empty?).reverse
   end
 
-  def until opts = {}
+  def until pane = 0
     lines = nil
-    wait(opts) do
-      yield lines = capture(opts)
+    begin
+      wait do
+        lines = capture(pane)
+        class << lines
+          def item_count
+            self[-2] ? self[-2].strip.split('/').last.to_i : 0
+          end
+        end
+        yield lines
+      end
+    rescue Exception
+      puts $!.backtrace
+      puts '>' * 80
+      puts lines
+      puts '<' * 80
+      raise
     end
     lines
   end
 
   def prepare
-    self.send_keys 'echo hello', :Enter
-    self.until { |lines| lines[-1].start_with?('hello') }
-    self.send_keys 'clear', :Enter
-    self.until { |lines| lines.empty? }
+    tries = 0
+    begin
+      self.send_keys 'C-u', 'hello', 'Right'
+      self.until { |lines| lines[-1].end_with?('hello') }
+    rescue Exception
+      (tries += 1) < 5 ? retry : raise
+    end
+    self.send_keys 'C-u'
   end
 private
-  def defaults opts
-    { timeout: 5, pane: 0 }.merge(opts)
-  end
-
-  def wait opts = {}
-    timeout, pane = defaults(opts).values_at(:timeout, :pane)
-    waited = 0
-    until yield
-      if waited > timeout
-        hl = '=' * 10
-        puts hl
-        capture(opts).each_with_index do |line, idx|
-          puts [idx.to_s.rjust(2), line].join(': ')
-        end
-        puts hl
-        raise "timeout"
-      end
-      waited += 0.1
-      sleep 0.1
-    end
-  end
-
   def go *args
     %x[tmux #{args.join ' '}].split($/)
   end
 end
 
 class TestBase < Minitest::Test
-  include Temp
-
-  FIN = 'FIN'
   TEMPNAME = '/tmp/output'
 
   attr_reader :tmux
 
+  def tempname
+    [TEMPNAME,
+     caller_locations.map(&:label).find { |l| l =~ /^test_/ }].join '-'
+  end
+
   def setup
     ENV.delete 'FZF_DEFAULT_OPTS'
+    ENV.delete 'FZF_CTRL_T_COMMAND'
     ENV.delete 'FZF_DEFAULT_COMMAND'
   end
 
+  def readonce
+    wait { File.exists?(tempname) }
+    File.read(tempname)
+  ensure
+    File.unlink tempname while File.exists?(tempname)
+    tmux.prepare
+  end
+
   def fzf(*opts)
-    fzf!(*opts) + " > #{TEMPNAME} && echo #{FIN}"
+    fzf!(*opts) + " > #{tempname}.tmp; mv #{tempname}.tmp #{tempname}"
   end
 
   def fzf!(*opts)
@@ -193,7 +176,7 @@ class TestBase < Minitest::Test
         nil
       end
     }.compact
-    "fzf #{opts.join ' '}"
+    "#{FZF} #{opts.join ' '}"
   end
 end
 
@@ -209,8 +192,7 @@ class TestGoFZF < TestBase
 
   def test_vanilla
     tmux.send_keys "seq 1 100000 | #{fzf}", :Enter
-    tmux.until(timeout: 10) { |lines|
-      lines.last =~ /^>/ && lines[-2] =~ /^  100000/ }
+    tmux.until { |lines| lines.last =~ /^>/ && lines[-2] =~ /^  100000/ }
     lines = tmux.capture
     assert_equal '  2',             lines[-4]
     assert_equal '> 1',             lines[-3]
@@ -227,7 +209,6 @@ class TestGoFZF < TestBase
     assert_equal '> 391',        lines[-1]
 
     tmux.send_keys :Enter
-    tmux.close
     assert_equal '1391', readonce.chomp
   end
 
@@ -236,12 +217,11 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines.last =~ /^>/ }
 
     tmux.send_keys :Enter
-    tmux.close
     assert_equal 'hello', readonce.chomp
   end
 
   def test_key_bindings
-    tmux.send_keys "fzf -q 'foo bar foo-bar'", :Enter
+    tmux.send_keys "#{FZF} -q 'foo bar foo-bar'", :Enter
     tmux.until { |lines| lines.last =~ /^>/ }
 
     # CTRL-A
@@ -303,7 +283,6 @@ class TestGoFZF < TestBase
     # CTRL-M
     tmux.send_keys "C-M"
     tmux.until { |lines| lines.last !~ /^>/ }
-    tmux.close
   end
 
   def test_multi_order
@@ -315,9 +294,7 @@ class TestGoFZF < TestBase
                    :PgUp, 'C-J', :Down, :Tab, :Tab # 8, 7
     tmux.until { |lines| lines[-2].include? '(6)' }
     tmux.send_keys "C-M"
-    tmux.until { |lines| lines[-1].include?(FIN) }
     assert_equal %w[3 2 5 6 8 7], readonce.split($/)
-    tmux.close
   end
 
   def test_with_nth
@@ -335,14 +312,14 @@ class TestGoFZF < TestBase
 
       # However, the output must not be transformed
       if multi
-        tmux.send_keys :BTab, :BTab, :Enter
-        tmux.until { |lines| lines[-1].include?(FIN) }
+        tmux.send_keys :BTab, :BTab
+        tmux.until { |lines| lines[-2].include?('(2)') }
+        tmux.send_keys :Enter
         assert_equal ['  1st 2nd 3rd/', '  first second third/'], readonce.split($/)
       else
         tmux.send_keys '^', '3'
         tmux.until { |lines| lines[-2].include?('1/2') }
         tmux.send_keys :Enter
-        tmux.until { |lines| lines[-1].include?(FIN) }
         assert_equal ['  1st 2nd 3rd/'], readonce.split($/)
       end
     end
@@ -355,20 +332,17 @@ class TestGoFZF < TestBase
       tmux.send_keys *110.times.map { rev ? :Down : :Up }
       tmux.until { |lines| lines.include? '> 100' }
       tmux.send_keys :Enter
-      tmux.until { |lines| lines[-1].include?(FIN) }
       assert_equal '100', readonce.chomp
     end
   end
 
   def test_select_1
     tmux.send_keys "seq 1 100 | #{fzf :with_nth, '..,..', :print_query, :q, 5555, :'1'}", :Enter
-    tmux.until { |lines| lines[-1].include?(FIN) }
     assert_equal ['5555', '55'], readonce.split($/)
   end
 
   def test_exit_0
     tmux.send_keys "seq 1 100 | #{fzf :with_nth, '..,..', :print_query, :q, 555555, :'0'}", :Enter
-    tmux.until { |lines| lines[-1].include?(FIN) }
     assert_equal ['555555'], readonce.split($/)
   end
 
@@ -376,17 +350,17 @@ class TestGoFZF < TestBase
     [:'0', :'1', [:'1', :'0']].each do |opt|
       tmux.send_keys "seq 1 100 | #{fzf :print_query, :multi, :q, 5, *opt}", :Enter
       tmux.until { |lines| lines.last =~ /^> 5/ }
-      tmux.send_keys :BTab, :BTab, :BTab, :Enter
-      tmux.until { |lines| lines[-1].include?(FIN) }
+      tmux.send_keys :BTab, :BTab, :BTab
+      tmux.until { |lines| lines[-2].include?('(3)') }
+      tmux.send_keys :Enter
       assert_equal ['5', '5', '15', '25'], readonce.split($/)
     end
   end
 
   def test_query_unicode
     tmux.send_keys "(echo abc; echo 가나다) | #{fzf :query, '가다'}", :Enter
-    tmux.until { |lines| lines.last.start_with? '>' }
+    tmux.until { |lines| lines[-2].include? '1/2' }
     tmux.send_keys :Enter
-    tmux.until { |lines| lines[-1].include?(FIN) }
     assert_equal ['가나다'], readonce.split($/)
   end
 
@@ -395,7 +369,9 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 9
     tmux.until { |lines| lines[-2] == '  19/100' }
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 'C-K', :Enter
     assert_equal ['1919'], readonce.split($/)
@@ -404,7 +380,9 @@ class TestGoFZF < TestBase
   def test_tac
     tmux.send_keys "seq 1 1000 | #{fzf :tac, :multi}", :Enter
     tmux.until { |lines| lines[-2].include? '1000/1000' }
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[1000 999 998], readonce.split($/)
   end
 
@@ -412,7 +390,9 @@ class TestGoFZF < TestBase
     tmux.send_keys "seq 1 1000 | #{fzf :tac, :multi}", :Enter
     tmux.until { |lines| lines[-2].include? '1000/1000' }
     tmux.send_keys '99'
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[99 999 998], readonce.split($/)
   end
 
@@ -420,9 +400,385 @@ class TestGoFZF < TestBase
     tmux.send_keys "seq 1 1000 | #{fzf :tac, :no_sort, :multi}", :Enter
     tmux.until { |lines| lines[-2].include? '1000/1000' }
     tmux.send_keys '00'
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.until { |lines| lines[-2].include? '10/1000' }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[1000 900 800], readonce.split($/)
   end
+
+  def test_expect
+    test = lambda do |key, feed, expected = key|
+      tmux.send_keys "seq 1 100 | #{fzf :expect, key}", :Enter
+      tmux.until { |lines| lines[-2].include? '100/100' }
+      tmux.send_keys '55'
+      tmux.until { |lines| lines[-2].include? '1/100' }
+      tmux.send_keys *feed
+      assert_equal [expected, '55'], readonce.split($/)
+    end
+    test.call 'ctrl-t', 'C-T'
+    test.call 'ctrl-t', 'Enter', ''
+    test.call 'alt-c', [:Escape, :c]
+    test.call 'f1', 'f1'
+    test.call 'f2', 'f2'
+    test.call 'f3', 'f3'
+    test.call 'f2,f4', 'f2', 'f2'
+    test.call 'f2,f4', 'f4', 'f4'
+    test.call '@', '@'
+  end
+
+  def test_expect_print_query
+    tmux.send_keys "seq 1 100 | #{fzf '--expect=alt-z', :print_query}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys '55'
+    tmux.until { |lines| lines[-2].include? '1/100' }
+    tmux.send_keys :Escape, :z
+    assert_equal ['55', 'alt-z', '55'], readonce.split($/)
+  end
+
+  def test_expect_print_query_select_1
+    tmux.send_keys "seq 1 100 | #{fzf '-q55 -1 --expect=alt-z --print-query'}", :Enter
+    assert_equal ['55', '', '55'], readonce.split($/)
+  end
+
+  def test_toggle_sort
+    ['--toggle-sort=ctrl-r', '--bind=ctrl-r:toggle-sort'].each do |opt|
+      tmux.send_keys "seq 1 111 | #{fzf "-m +s --tac #{opt} -q11"}", :Enter
+      tmux.until { |lines| lines[-3].include? '> 111' }
+      tmux.send_keys :Tab
+      tmux.until { |lines| lines[-2].include? '4/111   (1)' }
+      tmux.send_keys 'C-R'
+      tmux.until { |lines| lines[-3].include? '> 11' }
+      tmux.send_keys :Tab
+      tmux.until { |lines| lines[-2].include? '4/111/S (2)' }
+      tmux.send_keys :Enter
+      assert_equal ['111', '11'], readonce.split($/)
+    end
+  end
+
+  def test_unicode_case
+    writelines tempname, %w[строКА1 СТРОКА2 строка3 Строка4]
+    assert_equal %w[СТРОКА2 Строка4], `cat #{tempname} | #{FZF} -fС`.split($/)
+    assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `cat #{tempname} | #{FZF} -fс`.split($/)
+  end
+
+  def test_tiebreak
+    input = %w[
+      --foobar--------
+      -----foobar---
+      ----foobar--
+      -------foobar-
+    ]
+    writelines tempname, input
+
+    assert_equal input, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=index`.split($/)
+
+    by_length = %w[
+      ----foobar--
+      -----foobar---
+      -------foobar-
+      --foobar--------
+    ]
+    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar`.split($/)
+    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=length`.split($/)
+
+    by_begin = %w[
+      --foobar--------
+      ----foobar--
+      -----foobar---
+      -------foobar-
+    ]
+    assert_equal by_begin, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=begin`.split($/)
+    assert_equal by_begin, `cat #{tempname} | #{FZF} -f"!z foobar" -x --tiebreak begin`.split($/)
+
+    assert_equal %w[
+      -------foobar-
+      ----foobar--
+      -----foobar---
+      --foobar--------
+    ], `cat #{tempname} | #{FZF} -ffoobar --tiebreak end`.split($/)
+
+    assert_equal input, `cat #{tempname} | #{FZF} -f"!z" -x --tiebreak end`.split($/)
+  end
+
+  def test_tiebreak_length_with_nth
+    input = %w[
+      1:hell
+      123:hello
+      12345:he
+      1234567:h
+    ]
+    writelines tempname, input
+
+    output = %w[
+      1:hell
+      12345:he
+      123:hello
+      1234567:h
+    ]
+    assert_equal output, `cat #{tempname} | #{FZF} -fh`.split($/)
+
+    output = %w[
+      1234567:h
+      12345:he
+      1:hell
+      123:hello
+    ]
+    assert_equal output, `cat #{tempname} | #{FZF} -fh -n2 -d:`.split($/)
+  end
+
+  def test_invalid_cache
+    tmux.send_keys "(echo d; echo D; echo x) | #{fzf '-q d'}", :Enter
+    tmux.until { |lines| lines[-2].include? '2/3' }
+    tmux.send_keys :BSpace
+    tmux.until { |lines| lines[-2].include? '3/3' }
+    tmux.send_keys :D
+    tmux.until { |lines| lines[-2].include? '1/3' }
+    tmux.send_keys :Enter
+  end
+
+  def test_smart_case_for_each_term
+    assert_equal 1, `echo Foo bar | #{FZF} -x -f "foo Fbar" | wc -l`.to_i
+  end
+
+  def test_bind
+    tmux.send_keys "seq 1 1000 | #{
+      fzf '-m --bind=ctrl-j:accept,u:up,T:toggle-up,t:toggle'}", :Enter
+    tmux.until { |lines| lines[-2].end_with? '/1000' }
+    tmux.send_keys 'uuu', 'TTT', 'tt', 'uu', 'ttt', 'C-j'
+    assert_equal %w[4 5 6 9], readonce.split($/)
+  end
+
+  def test_long_line
+    data = '.' * 256 * 1024
+    File.open(tempname, 'w') do |f|
+      f << data
+    end
+    assert_equal data, `cat #{tempname} | #{FZF} -f .`.chomp
+  end
+
+  def test_read0
+    lines = `find .`.split($/)
+    assert_equal lines.last, `find . | #{FZF} -e -f "^#{lines.last}$"`.chomp
+    assert_equal lines.last, `find . -print0 | #{FZF} --read0 -e -f "^#{lines.last}$"`.chomp
+  end
+
+  def test_select_all_deselect_all_toggle_all
+    tmux.send_keys "seq 100 | #{fzf '--bind ctrl-a:select-all,ctrl-d:deselect-all,ctrl-t:toggle-all --multi'}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include? '(3)' }
+    tmux.send_keys 'C-t'
+    tmux.until { |lines| lines[-2].include? '(97)' }
+    tmux.send_keys 'C-a'
+    tmux.until { |lines| lines[-2].include? '(100)' }
+    tmux.send_keys :Tab, :Tab
+    tmux.until { |lines| lines[-2].include? '(98)' }
+    tmux.send_keys 'C-d'
+    tmux.until { |lines| !lines[-2].include? '(' }
+    tmux.send_keys :Tab, :Tab
+    tmux.until { |lines| lines[-2].include? '(2)' }
+    tmux.send_keys 0
+    tmux.until { |lines| lines[-2].include? '10/100' }
+    tmux.send_keys 'C-a'
+    tmux.until { |lines| lines[-2].include? '(12)' }
+    tmux.send_keys :Enter
+    assert_equal %w[2 1 10 20 30 40 50 60 70 80 90 100], readonce.split($/)
+  end
+
+  def test_history
+    history_file = '/tmp/fzf-test-history'
+
+    # History with limited number of entries
+    File.unlink history_file rescue nil
+    opts = "--history=#{history_file} --history-size=4"
+    input = %w[00 11 22 33 44].map { |e| e + $/ }
+    input.each do |keys|
+      tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+      tmux.until { |lines| lines[-2].include? '100/100' }
+      tmux.send_keys keys
+      tmux.until { |lines| lines[-2].include? '1/100' }
+      tmux.send_keys :Enter
+      readonce
+    end
+    assert_equal input[1..-1], File.readlines(history_file)
+
+    # Update history entries (not changed on disk)
+    tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 44' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 33' }
+    tmux.send_keys :BSpace
+    tmux.until { |lines| lines[-1].end_with? '> 3' }
+    tmux.send_keys 1
+    tmux.until { |lines| lines[-1].end_with? '> 31' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 22' }
+    tmux.send_keys 'C-n'
+    tmux.until { |lines| lines[-1].end_with? '> 31' }
+    tmux.send_keys 0
+    tmux.until { |lines| lines[-1].end_with? '> 310' }
+    tmux.send_keys :Enter
+    readonce
+    assert_equal %w[22 33 44 310].map { |e| e + $/ }, File.readlines(history_file)
+
+    # Respect --bind option
+    tmux.send_keys "seq 100 | #{fzf opts + ' --bind ctrl-p:next-history,ctrl-n:previous-history'}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys 'C-n', 'C-n', 'C-n', 'C-n', 'C-p'
+    tmux.until { |lines| lines[-1].end_with?('33') }
+    tmux.send_keys :Enter
+  ensure
+    File.unlink history_file
+  end
+
+  def test_execute
+    output = '/tmp/fzf-test-execute'
+    opts = %[--bind \\"alt-a:execute(echo '[{}]' >> #{output}),alt-b:execute[echo '({}), ({})' >> #{output}],C:execute:echo '({}), [{}], @{}@' >> #{output}\\"]
+    tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys :Escape, :a, :Escape, :a
+    tmux.send_keys :Up
+    tmux.send_keys :Escape, :b, :Escape, :b
+    tmux.send_keys :Up
+    tmux.send_keys :C
+    tmux.send_keys 'foobar'
+    tmux.until { |lines| lines[-2].include? '0/100' }
+    tmux.send_keys :Escape, :a, :Escape, :b, :Escape, :c
+    tmux.send_keys :Enter
+    readonce
+    assert_equal ['["1"]', '["1"]', '("2"), ("2")', '("2"), ("2")', '("3"), ["3"], @"3"@'],
+      File.readlines(output).map(&:chomp)
+  ensure
+    File.unlink output rescue nil
+  end
+
+  def test_cycle
+    tmux.send_keys "seq 8 | #{fzf :cycle}", :Enter
+    tmux.until { |lines| lines[-2].include? '8/8' }
+    tmux.send_keys :Down
+    tmux.until { |lines| lines[-10].start_with? '>' }
+    tmux.send_keys :Down
+    tmux.until { |lines| lines[-9].start_with? '>' }
+    tmux.send_keys :PgUp
+    tmux.until { |lines| lines[-10].start_with? '>' }
+    tmux.send_keys :PgUp
+    tmux.until { |lines| lines[-3].start_with? '>' }
+    tmux.send_keys :Up
+    tmux.until { |lines| lines[-4].start_with? '>' }
+    tmux.send_keys :PgDn
+    tmux.until { |lines| lines[-3].start_with? '>' }
+    tmux.send_keys :PgDn
+    tmux.until { |lines| lines[-10].start_with? '>' }
+  end
+
+  def test_header_lines
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5'}", :Enter
+    2.times do
+      tmux.until do |lines|
+        lines[-2].include?('/90') &&
+        lines[-3]  == '  1' &&
+        lines[-4]  == '  2' &&
+        lines[-13] == '> 15'
+      end
+      tmux.send_keys :Down
+    end
+    tmux.send_keys :Enter
+    assert_equal '15', readonce.chomp
+  end
+
+  def test_header_lines_reverse
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5 --reverse'}", :Enter
+    2.times do
+      tmux.until do |lines|
+        lines[1].include?('/90') &&
+        lines[2]  == '  1' &&
+        lines[3]  == '  2' &&
+        lines[12] == '> 15'
+      end
+      tmux.send_keys :Up
+    end
+    tmux.send_keys :Enter
+    assert_equal '15', readonce.chomp
+  end
+
+  def test_header_lines_overflow
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=200'}", :Enter
+    tmux.until do |lines|
+      lines[-2].include?('0/0') &&
+      lines[-3].include?('  1')
+    end
+    tmux.send_keys :Enter
+    assert_equal '', readonce.chomp
+  end
+
+  def test_header_lines_with_nth
+    tmux.send_keys "seq 100 | #{fzf "--header-lines 5 --with-nth 1,1,1,1,1"}", :Enter
+    tmux.until do |lines|
+      lines[-2].include?('95/95') &&
+      lines[-3] == '  11111' &&
+      lines[-7] == '  55555' &&
+      lines[-8] == '> 66666'
+    end
+    tmux.send_keys :Enter
+    assert_equal '6', readonce.chomp
+  end
+
+  def test_header_file
+    tmux.send_keys "seq 100 | #{fzf "--header-file <(head -5 #{__FILE__})"}", :Enter
+    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[-2].include?('100/100') &&
+      lines[-7..-3].map(&:strip) == header
+    end
+  end
+
+  def test_header_file_reverse
+    tmux.send_keys "seq 100 | #{fzf "--header-file=<(head -5 #{__FILE__}) --reverse"}", :Enter
+    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[1].include?('100/100') &&
+      lines[2..6].map(&:strip) == header
+    end
+  end
+
+  def test_canel
+    tmux.send_keys "seq 10 | #{fzf "--bind 2:cancel"}", :Enter
+    tmux.until { |lines| lines[-2].include?('10/10') }
+    tmux.send_keys '123'
+    tmux.until { |lines| lines[-1] == '> 3' && lines[-2].include?('1/10') }
+    tmux.send_keys 'C-y', 'C-y'
+    tmux.until { |lines| lines[-1] == '> 311' }
+    tmux.send_keys 2
+    tmux.until { |lines| lines[-1] == '>' }
+    tmux.send_keys 2
+    tmux.prepare
+  end
+
+  def test_margin
+    tmux.send_keys "yes | head -1000 | #{fzf "--margin 5,3"}", :Enter
+    tmux.until { |lines| lines[4] == '' && lines[5] == '     y' }
+    tmux.send_keys :Enter
+  end
+
+  def test_margin_reverse
+    tmux.send_keys "seq 1000 | #{fzf "--margin 7,5 --reverse"}", :Enter
+    tmux.until { |lines| lines[1 + 7] == '       1000/1000' }
+    tmux.send_keys :Enter
+  end
+
+  def test_invalid_term
+    tmux.send_keys "TERM=xxx fzf", :Enter
+    tmux.until { |lines| lines.any? { |l| l.include? 'Invalid $TERM: xxx' } }
+  end
+
+private
+  def writelines path, lines
+    File.unlink path while File.exists? path
+    File.open(path, 'w') { |f| f << lines.join($/) }
+  end
 end
 
 module TestShell
@@ -434,35 +790,54 @@ module TestShell
     @tmux.kill
   end
 
+  def set_var name, val
+    tmux.prepare
+    tmux.send_keys "export #{name}='#{val}'", :Enter
+    tmux.prepare
+  end
+
   def test_ctrl_t
     tmux.prepare
     tmux.send_keys 'C-t', pane: 0
-    lines = tmux.until(pane: 1) { |lines| lines[-1].start_with? '>' }
+    lines = tmux.until(1) { |lines| lines.item_count > 1 }
     expected = lines.values_at(-3, -4).map { |line| line[2..-1] }.join(' ')
-    tmux.send_keys :BTab, :BTab, :Enter, pane: 1
-    tmux.until(pane: 0) { |lines| lines[-1].include? expected }
+    tmux.send_keys :BTab, :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter, pane: 1
+    tmux.until(0) { |lines| lines[-1].include? expected }
     tmux.send_keys 'C-c'
 
     # FZF_TMUX=0
     new_shell
     tmux.send_keys 'C-t', pane: 0
-    lines = tmux.until(pane: 0) { |lines| lines[-1].start_with? '>' }
+    lines = tmux.until(0) { |lines| lines.item_count > 1 }
     expected = lines.values_at(-3, -4).map { |line| line[2..-1] }.join(' ')
-    tmux.send_keys :BTab, :BTab, :Enter, pane: 0
-    tmux.until(pane: 0) { |lines| lines[-1].include? expected }
+    tmux.send_keys :BTab, :BTab, pane: 0
+    tmux.until(0) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter, pane: 0
+    tmux.until(0) { |lines| lines[-1].include? expected }
     tmux.send_keys 'C-c', 'C-d'
   end
 
+  def test_ctrl_t_command
+    set_var "FZF_CTRL_T_COMMAND", "seq 100"
+    tmux.send_keys 'C-t', pane: 0
+    lines = tmux.until(1) { |lines| lines.item_count == 100 }
+    tmux.send_keys :BTab, :BTab, :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter, pane: 1
+    tmux.until(0) { |lines| lines[-1].include? '1 2 3' }
+  end
+
   def test_alt_c
     tmux.prepare
-    tmux.send_keys :Escape, :c
-    lines = tmux.until { |lines| lines[-1].start_with? '>' }
+    tmux.send_keys :Escape, :c, pane: 0
+    lines = tmux.until(1) { |lines| lines.item_count > 0 && lines[-3][2..-1] }
     expected = lines[-3][2..-1]
-    p expected
-    tmux.send_keys :Enter
+    tmux.send_keys :Enter, pane: 1
     tmux.prepare
     tmux.send_keys :pwd, :Enter
-    tmux.until { |lines| p lines; lines[-1].end_with?(expected) }
+    tmux.until { |lines| lines[-1].end_with?(expected) }
   end
 
   def test_ctrl_r
@@ -472,58 +847,95 @@ module TestShell
     tmux.send_keys 'echo 3d',  :Enter; tmux.prepare
     tmux.send_keys 'echo 3rd', :Enter; tmux.prepare
     tmux.send_keys 'echo 4th', :Enter; tmux.prepare
-    tmux.send_keys 'C-r'
-    tmux.until { |lines| lines[-1].start_with? '>' }
-    tmux.send_keys '3d'
-    tmux.until { |lines| lines[-3].end_with? 'echo 3rd' } # --no-sort
-    tmux.send_keys :Enter
+    tmux.send_keys 'C-r', pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys '3d', pane: 1
+    tmux.until(1) { |lines| lines[-3].end_with? 'echo 3rd' } # --no-sort
+    tmux.send_keys :Enter, pane: 1
     tmux.until { |lines| lines[-1] == 'echo 3rd' }
     tmux.send_keys :Enter
     tmux.until { |lines| lines[-1] == '3rd' }
   end
 end
 
-class TestBash < TestBase
-  include TestShell
-
-  def new_shell
-    tmux.send_keys "FZF_TMUX=0 #{Shell.bash}", :Enter
-    tmux.prepare
-  end
-
-  def setup
-    super
-    @tmux = Tmux.new :bash
-  end
-
+module CompletionTest
   def test_file_completion
-    tmux.send_keys 'mkdir -p /tmp/fzf-test; touch /tmp/fzf-test/{1..100}', :Enter
+    FileUtils.mkdir_p '/tmp/fzf-test'
+    FileUtils.mkdir_p '/tmp/fzf test'
+    (1..100).each { |i| FileUtils.touch "/tmp/fzf-test/#{i}" }
+    ['no~such~user', '/tmp/fzf test/foobar', '~/.fzf-home'].each do |f|
+      FileUtils.touch File.expand_path(f)
+    end
     tmux.prepare
-    tmux.send_keys 'cat /tmp/fzf-test/10**', :Tab
-    tmux.until { |lines| lines[-1].start_with? '>' }
-    tmux.send_keys :BTab, :BTab, :Enter
-    tmux.until { |lines|
+    tmux.send_keys 'cat /tmp/fzf-test/10**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys :BTab, :BTab
+    tmux.until(1) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
       lines[-1].include?('/tmp/fzf-test/10') &&
       lines[-1].include?('/tmp/fzf-test/100')
-    }
+    end
+
+    # ~USERNAME**<TAB>
+    tmux.send_keys 'C-u'
+    tmux.send_keys "cat ~#{ENV['USER']}**", :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys '.fzf-home'
+    tmux.until(1) { |lines| lines[-3].end_with? '.fzf-home' }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1].end_with?('.fzf-home')
+    end
+
+    # ~INVALID_USERNAME**<TAB>
+    tmux.send_keys 'C-u'
+    tmux.send_keys "cat ~such**", :Tab, pane: 0
+    tmux.until(1) { |lines| lines[-3].end_with? 'no~such~user' }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1].end_with?('no~such~user')
+    end
+
+    # /tmp/fzf\ test**<TAB>
+    tmux.send_keys 'C-u'
+    tmux.send_keys 'cat /tmp/fzf\ test/**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1].end_with?('/tmp/fzf\ test/foobar')
+    end
+  ensure
+    ['/tmp/fzf-test', '/tmp/fzf test', '~/.fzf-home', 'no~such~user'].each do |f|
+      FileUtils.rm_rf File.expand_path(f)
+    end
   end
 
   def test_dir_completion
     tmux.send_keys 'mkdir -p /tmp/fzf-test/d{1..100}; touch /tmp/fzf-test/d55/xxx', :Enter
     tmux.prepare
-    tmux.send_keys 'cd /tmp/fzf-test/**', :Tab
-    tmux.until { |lines| lines[-1].start_with? '>' }
+    tmux.send_keys 'cd /tmp/fzf-test/**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
     tmux.send_keys :BTab, :BTab # BTab does not work here
     tmux.send_keys 55
-    tmux.until { |lines| lines[-2].start_with? '  1/' }
+    tmux.until(1) { |lines| lines[-2].start_with? '  1/' }
     tmux.send_keys :Enter
-    tmux.until { |lines| lines[-1] == 'cd /tmp/fzf-test/d55/' }
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1] == 'cd /tmp/fzf-test/d55/'
+    end
     tmux.send_keys :xx
     tmux.until { |lines| lines[-1] == 'cd /tmp/fzf-test/d55/xx' }
 
-    # Should not match regular files
-    tmux.send_keys :Tab
-    tmux.until { |lines| lines[-1] == 'cd /tmp/fzf-test/d55/xx' }
+    # Should not match regular files (bash-only)
+    if self.class == TestBash
+      tmux.send_keys :Tab
+      tmux.until { |lines| lines[-1] == 'cd /tmp/fzf-test/d55/xx' }
+    end
 
     # Fail back to plusdirs
     tmux.send_keys :BSpace, :BSpace, :BSpace
@@ -537,17 +949,39 @@ class TestBash < TestBase
     lines = tmux.until { |lines| lines[-1].start_with? '[1]' }
     pid = lines[-1].split.last
     tmux.prepare
-    tmux.send_keys 'kill ', :Tab
-    tmux.until { |lines| lines[-1].start_with? '>' }
+    tmux.send_keys 'kill ', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
     tmux.send_keys 'sleep12345'
-    tmux.until { |lines| lines[-3].include? 'sleep 12345' }
+    tmux.until(1) { |lines| lines[-3].include? 'sleep 12345' }
     tmux.send_keys :Enter
-    tmux.until { |lines| lines[-1] == "kill #{pid}" }
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1] == "kill #{pid}"
+    end
+  ensure
+    Process.kill 'KILL', pid.to_i rescue nil if pid
+  end
+end
+
+class TestBash < TestBase
+  include TestShell
+  include CompletionTest
+
+  def new_shell
+    tmux.prepare
+    tmux.send_keys "FZF_TMUX=0 #{Shell.bash}", :Enter
+    tmux.prepare
+  end
+
+  def setup
+    super
+    @tmux = Tmux.new :bash
   end
 end
 
 class TestZsh < TestBase
   include TestShell
+  include CompletionTest
 
   def new_shell
     tmux.send_keys "FZF_TMUX=0 #{Shell.zsh}", :Enter
@@ -569,6 +1003,12 @@ class TestFish < TestBase
     tmux.until { |lines| lines.empty? }
   end
 
+  def set_var name, val
+    tmux.prepare
+    tmux.send_keys "set -g #{name} '#{val}'", :Enter
+    tmux.prepare
+  end
+
   def setup
     super
     @tmux = Tmux.new :fish

test/test_ruby.rb

@@ -1,850 +0,0 @@
-#!/usr/bin/env ruby
-# encoding: utf-8
-
-require 'rubygems'
-require 'curses'
-require 'timeout'
-require 'stringio'
-require 'minitest/autorun'
-require 'tempfile'
-$LOAD_PATH.unshift File.expand_path('../..', __FILE__)
-ENV['FZF_EXECUTABLE'] = '0'
-load 'fzf'
-
-class MockTTY
-  def initialize
-    @buffer = ''
-    @mutex = Mutex.new
-    @condv = ConditionVariable.new
-  end
-
-  def read_nonblock sz
-    @mutex.synchronize do
-      take sz
-    end
-  end
-
-  def take sz
-    if @buffer.length >= sz
-      ret = @buffer[0, sz]
-      @buffer = @buffer[sz..-1]
-      ret
-    end
-  end
-
-  def getc
-    sleep 0.1
-    while true
-      @mutex.synchronize do
-        if char = take(1)
-          return char
-        else
-          @condv.wait(@mutex)
-        end
-      end
-    end
-  end
-
-  def << str
-    @mutex.synchronize do
-      @buffer << str
-      @condv.broadcast
-    end
-    self
-  end
-end
-
-class TestRubyFZF < Minitest::Test
-  def setup
-    ENV.delete 'FZF_DEFAULT_SORT'
-    ENV.delete 'FZF_DEFAULT_OPTS'
-    ENV.delete 'FZF_DEFAULT_COMMAND'
-  end
-
-  def test_default_options
-    fzf = FZF.new []
-    assert_equal 1000,  fzf.sort
-    assert_equal false, fzf.multi
-    assert_equal true,  fzf.color
-    assert_equal nil,   fzf.rxflag
-    assert_equal true,  fzf.mouse
-    assert_equal nil,   fzf.nth
-    assert_equal nil,   fzf.with_nth
-    assert_equal true,  fzf.color
-    assert_equal false, fzf.black
-    assert_equal true,  fzf.ansi256
-    assert_equal '',    fzf.query
-    assert_equal false, fzf.select1
-    assert_equal false, fzf.exit0
-    assert_equal nil,   fzf.filter
-    assert_equal nil,   fzf.extended
-    assert_equal false, fzf.reverse
-    assert_equal '> ',  fzf.prompt
-    assert_equal false, fzf.print_query
-  end
-
-  def test_environment_variables
-    # Deprecated
-    ENV['FZF_DEFAULT_SORT'] = '20000'
-    fzf = FZF.new []
-    assert_equal 20000, fzf.sort
-    assert_equal nil,   fzf.nth
-
-    ENV['FZF_DEFAULT_OPTS'] =
-      '-x -m -s 10000 -q "  hello  world  " +c +2 --select-1 -0 ' <<
-      '--no-mouse -f "goodbye world" --black --with-nth=3,-3..,2 --nth=3,-1,2 --reverse --print-query'
-    fzf = FZF.new []
-    assert_equal 10000,   fzf.sort
-    assert_equal '  hello  world  ',
-                          fzf.query
-    assert_equal 'goodbye world',
-                          fzf.filter
-    assert_equal :fuzzy,  fzf.extended
-    assert_equal true,    fzf.multi
-    assert_equal false,   fzf.color
-    assert_equal false,   fzf.ansi256
-    assert_equal true,    fzf.black
-    assert_equal false,   fzf.mouse
-    assert_equal true,    fzf.select1
-    assert_equal true,    fzf.exit0
-    assert_equal true,    fzf.reverse
-    assert_equal true,    fzf.print_query
-    assert_equal [2..2, -1..-1, 1..1], fzf.nth
-    assert_equal [2..2, -3..-1, 1..1], fzf.with_nth
-  end
-
-  def test_option_parser
-    # Long opts
-    fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query hello --select-1
-                     --exit-0 --filter=howdy --extended-exact
-                     --no-mouse --no-256 --nth=1 --with-nth=.. --reverse --prompt (hi)
-                     --print-query]
-    assert_equal 2000,    fzf.sort
-    assert_equal true,    fzf.multi
-    assert_equal false,   fzf.color
-    assert_equal false,   fzf.ansi256
-    assert_equal false,   fzf.black
-    assert_equal false,   fzf.mouse
-    assert_equal 0,       fzf.rxflag
-    assert_equal 'hello', fzf.query
-    assert_equal true,    fzf.select1
-    assert_equal true,    fzf.exit0
-    assert_equal 'howdy', fzf.filter
-    assert_equal :exact,  fzf.extended
-    assert_equal [0..0],  fzf.nth
-    assert_equal nil,     fzf.with_nth
-    assert_equal true,    fzf.reverse
-    assert_equal '(hi)',  fzf.prompt
-    assert_equal true,    fzf.print_query
-
-    # Long opts (left-to-right)
-    fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query=hello
-                     --filter a --filter b --no-256 --black --nth -1 --nth -2
-                     --select-1 --exit-0 --no-select-1 --no-exit-0
-                     --no-sort -i --color --no-multi --256
-                     --reverse --no-reverse --prompt (hi) --prompt=(HI)
-                     --print-query --no-print-query]
-    assert_equal nil,     fzf.sort
-    assert_equal false,   fzf.multi
-    assert_equal true,    fzf.color
-    assert_equal true,    fzf.ansi256
-    assert_equal true,    fzf.black
-    assert_equal true,    fzf.mouse
-    assert_equal 1,       fzf.rxflag
-    assert_equal 'b',     fzf.filter
-    assert_equal 'hello', fzf.query
-    assert_equal false,   fzf.select1
-    assert_equal false,   fzf.exit0
-    assert_equal nil,     fzf.extended
-    assert_equal [-2..-2], fzf.nth
-    assert_equal false,   fzf.reverse
-    assert_equal '(HI)',  fzf.prompt
-    assert_equal false,    fzf.print_query
-
-    # Short opts
-    fzf = FZF.new %w[-s2000 +c -m +i -qhello -x -fhowdy +2 -n3 -1 -0]
-    assert_equal 2000,    fzf.sort
-    assert_equal true,    fzf.multi
-    assert_equal false,   fzf.color
-    assert_equal false,   fzf.ansi256
-    assert_equal 0,       fzf.rxflag
-    assert_equal 'hello', fzf.query
-    assert_equal 'howdy', fzf.filter
-    assert_equal :fuzzy,  fzf.extended
-    assert_equal [2..2],  fzf.nth
-    assert_equal true,    fzf.select1
-    assert_equal true,    fzf.exit0
-
-    # Left-to-right
-    fzf = FZF.new %w[-s 2000 +c -m +i -qhello -x -fgoodbye +2 -n3 -n4,5
-                     -s 3000 -c +m -i -q world +x -fworld -2 --black --no-black
-                     -1 -0 +1 +0
-                    ]
-    assert_equal 3000,    fzf.sort
-    assert_equal false,   fzf.multi
-    assert_equal true,    fzf.color
-    assert_equal true,    fzf.ansi256
-    assert_equal false,   fzf.black
-    assert_equal 1,       fzf.rxflag
-    assert_equal 'world', fzf.query
-    assert_equal false,   fzf.select1
-    assert_equal false,   fzf.exit0
-    assert_equal 'world', fzf.filter
-    assert_equal nil,     fzf.extended
-    assert_equal [3..3, 4..4], fzf.nth
-  rescue SystemExit => e
-    assert false, "Exited"
-  end
-
-  def test_invalid_option
-    [
-      %w[--unknown],
-      %w[yo dawg],
-      %w[--nth=0],
-      %w[-n 0],
-      %w[-n 1..2..3],
-      %w[-n 1....],
-      %w[-n ....3],
-      %w[-n 1....3],
-      %w[-n 1..0],
-      %w[--nth ..0],
-    ].each do |argv|
-      assert_raises(SystemExit) do
-        fzf = FZF.new argv
-      end
-    end
-  end
-
-  def test_width
-    fzf = FZF.new []
-    assert_equal 5, fzf.width('abcde')
-    assert_equal 4, fzf.width('한글')
-    assert_equal 5, fzf.width('한글.')
-  end if RUBY_VERSION >= '1.9'
-
-  def test_trim
-    fzf = FZF.new []
-    assert_equal ['사.',     6], fzf.trim('가나다라마바사.', 4, true)
-    assert_equal ['바사.',   5], fzf.trim('가나다라마바사.', 5, true)
-    assert_equal ['바사.',   5], fzf.trim('가나다라마바사.', 6, true)
-    assert_equal ['마바사.', 4], fzf.trim('가나다라마바사.', 7, true)
-    assert_equal ['가나',    6], fzf.trim('가나다라마바사.', 4, false)
-    assert_equal ['가나',    6], fzf.trim('가나다라마바사.', 5, false)
-    assert_equal ['가나a',   6], fzf.trim('가나ab라마바사.', 5, false)
-    assert_equal ['가나ab',  5], fzf.trim('가나ab라마바사.', 6, false)
-    assert_equal ['가나ab',  5], fzf.trim('가나ab라마바사.', 7, false)
-  end if RUBY_VERSION >= '1.9'
-
-  def test_format
-    fzf = FZF.new []
-    assert_equal [['01234..', false]], fzf.format('0123456789', 7, [])
-    assert_equal [['012', false], ['34', true], ['..', false]],
-      fzf.format('0123456789', 7, [[3, 5]])
-    assert_equal [['..56', false], ['789', true]],
-      fzf.format('0123456789', 7, [[7, 10]])
-    assert_equal [['..56', false], ['78', true], ['9', false]],
-      fzf.format('0123456789', 7, [[7, 9]])
-
-    (3..5).each do |i|
-      assert_equal [['..', false], ['567', true], ['89', false]],
-        fzf.format('0123456789', 7, [[i, 8]])
-    end
-
-    assert_equal [['..', false], ['345', true], ['..', false]],
-      fzf.format('0123456789', 7, [[3, 6]])
-    assert_equal [['012', false], ['34', true], ['..', false]],
-      fzf.format('0123456789', 7, [[3, 5]])
-
-    # Multi-region
-    assert_equal [["0", true], ["1", false], ["2", true], ["34..", false]],
-      fzf.format('0123456789', 7, [[0, 1], [2, 3]])
-
-    assert_equal [["..", false], ["5", true], ["6", false], ["78", true], ["9", false]],
-      fzf.format('0123456789', 7, [[3, 6], [7, 9]])
-
-    assert_equal [["..", false], ["3", true], ["4", false], ["5", true], ["..", false]],
-      fzf.format('0123456789', 7, [[3, 4], [5, 6]])
-
-    # Multi-region Overlap
-    assert_equal [["..", false], ["345", true], ["..", false]],
-      fzf.format('0123456789', 7, [[4, 5], [3, 6]])
-  end
-
-  def test_fuzzy_matcher
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE
-    list = %w[
-      juice
-      juiceful
-      juiceless
-      juicily
-      juiciness
-      juicy]
-    assert matcher.caches.empty?
-    assert_equal(
-      [["juice",     [[0, 1]]],
-       ["juiceful",  [[0, 1]]],
-       ["juiceless", [[0, 1]]],
-       ["juicily",   [[0, 1]]],
-       ["juiciness", [[0, 1]]],
-       ["juicy",     [[0, 1]]]], matcher.match(list, 'j', '', '').sort)
-    assert !matcher.caches.empty?
-    assert_equal [list.object_id], matcher.caches.keys
-    assert_equal 1, matcher.caches[list.object_id].length
-    assert_equal 6, matcher.caches[list.object_id]['j'].length
-
-    assert_equal(
-      [["juicily",   [[0, 5]]],
-       ["juiciness", [[0, 5]]]], matcher.match(list, 'jii', '', '').sort)
-
-    assert_equal(
-      [["juicily",   [[2, 5]]],
-       ["juiciness", [[2, 5]]]], matcher.match(list, 'ii', '', '').sort)
-
-    assert_equal 3, matcher.caches[list.object_id].length
-    assert_equal 2, matcher.caches[list.object_id]['ii'].length
-
-    # TODO : partial_cache
-  end
-
-  def test_fuzzy_matcher_rxflag
-    assert_equal nil, FZF::FuzzyMatcher.new(nil).rxflag
-    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag
-    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag
-
-    assert_equal 1, FZF::FuzzyMatcher.new(nil).rxflag_for('abc')
-    assert_equal 0, FZF::FuzzyMatcher.new(nil).rxflag_for('Abc')
-    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('abc')
-    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('Abc')
-    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('abc')
-    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('Abc')
-  end
-
-  def test_fuzzy_matcher_case_sensitive
-    # Smart-case match (Uppercase found)
-    assert_equal [['Fruit', [[0, 5]]]],
-      FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
-
-    # Smart-case match (Uppercase not-found)
-    assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
-      FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'fruit', '', '').sort
-
-    # Case-sensitive match (-i)
-    assert_equal [['Fruit', [[0, 5]]]],
-      FZF::FuzzyMatcher.new(0).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
-
-    # Case-insensitive match (+i)
-    assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
-      FZF::FuzzyMatcher.new(Regexp::IGNORECASE).
-      match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
-  end
-
-  def test_extended_fuzzy_matcher_case_sensitive
-    %w['Fruit Fruit$].each do |q|
-      # Smart-case match (Uppercase found)
-      assert_equal [['Fruit', [[0, 5]]]],
-        FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q, '', '').sort
-
-      # Smart-case match (Uppercase not-found)
-      assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
-        FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q.downcase, '', '').sort
-
-      # Case-sensitive match (-i)
-      assert_equal [['Fruit', [[0, 5]]]],
-        FZF::ExtendedFuzzyMatcher.new(0).match(%w[Fruit Grapefruit], q, '', '').sort
-
-      # Case-insensitive match (+i)
-      assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
-        FZF::ExtendedFuzzyMatcher.new(Regexp::IGNORECASE).
-        match(%w[Fruit Grapefruit], q, '', '').sort
-    end
-  end
-
-  def test_extended_fuzzy_matcher
-    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
-    list = %w[
-      juice
-      juiceful
-      juiceless
-      juicily
-      juiciness
-      juicy
-      _juice]
-    match = proc { |q, prefix|
-      matcher.match(list, q, prefix, '').sort.map { |p| [p.first, p.last.sort] }
-    }
-
-    assert matcher.caches.empty?
-    3.times do
-      ['y j', 'j y'].each do |pat|
-        (0..pat.length - 1).each do |prefix_length|
-          prefix = pat[0, prefix_length]
-          assert_equal(
-            [["juicily", [[0, 1], [6, 7]]],
-             ["juicy",   [[0, 1], [4, 5]]]],
-            match.call(pat, prefix))
-        end
-      end
-
-      # $
-      assert_equal [["juiceful",  [[7, 8]]]], match.call('l$', '')
-      assert_equal [["juiceful",  [[7, 8]]],
-                    ["juiceless", [[5, 6]]],
-                    ["juicily",   [[5, 6]]]], match.call('l', '')
-
-      # ^
-      assert_equal list.length,     match.call('j', '').length
-      assert_equal list.length - 1, match.call('^j', '').length
-
-      # ^ + $
-      assert_equal 0, match.call('^juici$', '').length
-      assert_equal 1, match.call('^juice$', '').length
-      assert_equal 0, match.call('^.*$', '').length
-
-      # !
-      assert_equal 0, match.call('!j', '').length
-
-      # ! + ^
-      assert_equal [["_juice", []]], match.call('!^j', '')
-
-      # ! + $
-      assert_equal list.length - 1, match.call('!l$', '').length
-
-      # ! + f
-      assert_equal [["juicy", [[4, 5]]]], match.call('y !l', '')
-
-      # '
-      assert_equal %w[juiceful juiceless juicily],
-        match.call('il', '').map { |e| e.first }
-      assert_equal %w[juicily],
-        match.call("'il", '').map { |e| e.first }
-      assert_equal (list - %w[juicily]).sort,
-        match.call("!'il", '').map { |e| e.first }.sort
-    end
-    assert !matcher.caches.empty?
-  end
-
-  def test_xfuzzy_matcher_prefix_cache
-    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
-    list = %w[
-      a.java
-      b.java
-      java.jive
-      c.java$
-      d.java
-    ]
-    2.times do
-      assert_equal 5, matcher.match(list, 'java',   'java',   '').length
-      assert_equal 3, matcher.match(list, 'java$',  'java$',  '').length
-      assert_equal 1, matcher.match(list, 'java$$', 'java$$', '').length
-
-      assert_equal 0, matcher.match(list, '!java',  '!java',  '').length
-      assert_equal 4, matcher.match(list, '!^jav',  '!^jav',  '').length
-      assert_equal 4, matcher.match(list, '!^java', '!^java', '').length
-      assert_equal 2, matcher.match(list, '!^java !b !c', '!^java', '').length
-    end
-  end
-
-  def test_sort_by_rank
-    matcher  = FZF::FuzzyMatcher.new Regexp::IGNORECASE
-    xmatcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
-    list = %w[
-      0____1
-      0_____1
-      01
-      ____0_1
-      01_
-      _01_
-      0______1
-      ___01___
-    ]
-    assert_equal(
-      [["01",       [[0, 2]]],
-       ["01_",      [[0, 2]]],
-       ["_01_",     [[1, 3]]],
-       ["___01___", [[3, 5]]],
-       ["____0_1",  [[4, 7]]],
-       ["0____1",   [[0, 6]]],
-       ["0_____1",  [[0, 7]]],
-       ["0______1", [[0, 8]]]],
-      FZF.sort(matcher.match(list, '01', '', '')))
-
-    assert_equal(
-      [["01",       [[0, 1], [1, 2]]],
-       ["01_",      [[0, 1], [1, 2]]],
-       ["_01_",     [[1, 2], [2, 3]]],
-       ["0____1",   [[0, 1], [5, 6]]],
-       ["0_____1",  [[0, 1], [6, 7]]],
-       ["____0_1",  [[4, 5], [6, 7]]],
-       ["0______1", [[0, 1], [7, 8]]],
-       ["___01___", [[3, 4], [4, 5]]]],
-      FZF.sort(xmatcher.match(list, '0 1', '', '')))
-
-    assert_equal(
-      [["_01_",     [[1, 3], [0, 4]], [4, 4, "_01_"]],
-       ["___01___", [[3, 5], [0, 2]], [4, 8, "___01___"]],
-       ["____0_1",  [[4, 7], [0, 2]], [5, 7, "____0_1"]],
-       ["0____1",   [[0, 6], [1, 3]], [6, 6, "0____1"]],
-       ["0_____1",  [[0, 7], [1, 3]], [7, 7, "0_____1"]],
-       ["0______1", [[0, 8], [1, 3]], [8, 8, "0______1"]]],
-      FZF.sort(xmatcher.match(list, '01 __', '', '')).map { |tuple|
-        tuple << FZF.rank(tuple)
-      }
-    )
-  end
-
-  def test_extended_exact_mode
-    exact = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :exact
-    fuzzy = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy
-    list = %w[
-      extended-exact-mode-not-fuzzy
-      extended'-fuzzy-mode
-    ]
-    assert_equal 2, fuzzy.match(list, 'extended', '', '').length
-    assert_equal 2, fuzzy.match(list, 'mode extended', '', '').length
-    assert_equal 2, fuzzy.match(list, 'xtndd', '', '').length
-    assert_equal 2, fuzzy.match(list, "'-fuzzy", '', '').length
-
-    assert_equal 2, exact.match(list, 'extended', '', '').length
-    assert_equal 2, exact.match(list, 'mode extended', '', '').length
-    assert_equal 0, exact.match(list, 'xtndd', '', '').length
-    assert_equal 1, exact.match(list, "'-fuzzy", '', '').length
-    assert_equal 2, exact.match(list, "-fuzzy", '', '').length
-  end
-
-  # ^$ -> matches empty item
-  def test_format_empty_item
-    fzf = FZF.new []
-    item = ['', [[0, 0]]]
-    line, offsets = item
-    tokens        = fzf.format line, 80, offsets
-    assert_equal [], tokens
-  end
-
-  def test_mouse_event
-    interval = FZF::MouseEvent::DOUBLE_CLICK_INTERVAL
-    me = FZF::MouseEvent.new nil
-    me.v = 10
-    assert_equal false, me.double?(10)
-    assert_equal false, me.double?(20)
-    me.v = 20
-    assert_equal false, me.double?(10)
-    assert_equal false, me.double?(20)
-    me.v = 20
-    assert_equal false, me.double?(10)
-    assert_equal true,  me.double?(20)
-    sleep interval
-    assert_equal false,  me.double?(20)
-  end
-
-  def test_nth_match
-    list = [
-      ' first  second  third',
-      'fourth	 fifth   sixth',
-    ]
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE
-    assert_equal list, matcher.match(list, 'f', '', '').map(&:first)
-    assert_equal [
-      [list[0], [[2,  5]]],
-      [list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1]
-    assert_equal [[list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
-    assert_equal [[list[0], [[8, 9]]]], matcher.match(list, 's', '', '')
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2]
-    assert_equal [[list[0], [[19, 20]]]], matcher.match(list, 'r', '', '')
-
-    # Comma-separated
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2, 0..0]
-    assert_equal [[list[0], [[19, 20]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
-
-    # Ordered
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0, 2..2]
-    assert_equal [[list[0], [[3, 4]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
-
-    regex = FZF.build_delim_regex "\t"
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
-    assert_equal [[list[0], [[3, 10]]]], matcher.match(list, 're', '', '')
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
-    assert_equal [], matcher.match(list, 'r', '', '')
-    assert_equal [[list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
-
-    # Negative indexing
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [-1..-1], regex
-    assert_equal [[list[0], [[3, 6]]]], matcher.match(list, 'rt', '', '')
-    assert_equal [[list[0], [[2, 5]]], [list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
-
-    # Regex delimiter
-    regex = FZF.build_delim_regex "[ \t]+"
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
-    assert_equal [list[1]], matcher.match(list, 'f', '', '').map(&:first)
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
-    assert_equal [[list[0], [[1, 2]]], [list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
-  end
-
-  def test_nth_match_range
-    list = [
-      ' first  second  third',
-      'fourth	 fifth   sixth',
-    ]
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..2]
-    assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
-    assert_equal [], matcher.match(list, 'fo', '', '')
-
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..-1, 0..0]
-    assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
-    assert_equal [[list[1], [[0, 2]]]], matcher.match(list, 'fo', '', '')
-
-    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..0, 1..2]
-    assert_equal [], matcher.match(list, '^t', '', '')
-
-    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..1, 2..2]
-    assert_equal [[list[0], [[16, 17]]]], matcher.match(list, '^t', '', '')
-
-    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [1..-1]
-    assert_equal [[list[0], [[8, 9]]]], matcher.match(list, '^s', '', '')
-  end
-
-  def stream_for str, delay = 0
-    StringIO.new(str).tap do |sio|
-      sio.instance_eval do
-        alias org_gets gets
-
-        def gets
-          org_gets.tap { |e| sleep(@delay) unless e.nil? }
-        end
-
-        def reopen _
-        end
-      end
-      sio.instance_variable_set :@delay, delay
-    end
-  end
-
-  def assert_fzf_output opts, given, expected
-    stream = stream_for given
-    output = stream_for ''
-
-    def sorted_lines line
-      line.split($/).sort
-    end
-
-    begin
-      tty = MockTTY.new
-      $stdout = output
-      fzf = FZF.new(opts, stream)
-      fzf.instance_variable_set :@tty, tty
-      thr = block_given? && Thread.new { yield tty }
-      fzf.start
-      thr && thr.join
-    rescue SystemExit => e
-      assert_equal 0, e.status
-      assert_equal sorted_lines(expected), sorted_lines(output.string)
-    ensure
-      $stdout = STDOUT
-    end
-  end
-
-  def test_filter
-    {
-      %w[--filter=ol] => 'World',
-      %w[--filter=ol --print-query] => "ol\nWorld",
-    }.each do |opts, expected|
-      assert_fzf_output opts, "Hello\nWorld", expected
-    end
-  end
-
-  def test_select_1
-    {
-      %w[--query=ol --select-1] => 'World',
-      %w[--query=ol --select-1 --print-query] => "ol\nWorld",
-    }.each do |opts, expected|
-      assert_fzf_output opts, "Hello\nWorld", expected
-    end
-  end
-
-  def test_select_1_without_query
-    assert_fzf_output %w[--select-1], 'Hello World', 'Hello World'
-  end
-
-  def test_select_1_ambiguity
-    begin
-      Timeout::timeout(0.5) do
-        assert_fzf_output %w[--query=o --select-1], "hello\nworld", "should not match"
-      end
-    rescue Timeout::Error
-      Curses.close_screen
-    end
-  end
-
-  def test_exit_0
-    {
-      %w[--query=zz --exit-0] => '',
-      %w[--query=zz --exit-0 --print-query] => 'zz',
-    }.each do |opts, expected|
-      assert_fzf_output opts, "Hello\nWorld", expected
-    end
-  end
-
-  def test_exit_0_without_query
-    assert_fzf_output %w[--exit-0], '', ''
-  end
-
-  def test_with_nth
-    source = "hello world\nbatman"
-    assert_fzf_output %w[-0 -1 --with-nth=2,1 -x -q ^worl],
-      source, 'hello world'
-    assert_fzf_output %w[-0 -1 --with-nth=2,1 -x -q llo$],
-      source, 'hello world'
-    assert_fzf_output %w[-0 -1 --with-nth=.. -x -q llo$],
-      source, ''
-    assert_fzf_output %w[-0 -1 --with-nth=2,2,2,..,1 -x -q worlworlworlhellworlhell],
-      source, 'hello world'
-    assert_fzf_output %w[-0 -1 --with-nth=1,1,-1,1 -x -q batbatbatbat],
-      source, 'batman'
-  end
-
-  def test_with_nth_transform
-    fzf = FZF.new %w[--with-nth 2..,1]
-    assert_equal 'my world hello', fzf.transform('hello my world')
-    assert_equal 'my   world hello', fzf.transform('hello   my   world')
-    assert_equal 'my   world  hello', fzf.transform('hello   my   world  ')
-
-    fzf = FZF.new %w[--with-nth 2,-1,2]
-    assert_equal 'my world my', fzf.transform('hello my world')
-    assert_equal 'world world world', fzf.transform('hello world')
-    assert_equal 'world  world  world', fzf.transform('hello world  ')
-  end
-
-  def test_ranking_overlap_match_regions
-    list = [
-      '1           3   4      2',
-      '1           2   3    4'
-    ]
-    assert_equal [
-      ['1           2   3    4',   [[0, 13], [16, 22]]],
-      ['1           3   4      2', [[0, 24], [12, 17]]],
-    ], FZF.sort(FZF::ExtendedFuzzyMatcher.new(nil).match(list, '12 34', '', ''))
-  end
-
-  def test_constrain
-    fzf = FZF.new []
-
-    # [#****             ]
-    assert_equal [false, 0, 0], fzf.constrain(0, 0, 5, 100)
-
-    # *****[**#**  ...   ] => [**#*******  ... ]
-    assert_equal [true, 0, 2], fzf.constrain(5, 7, 10, 100)
-
-    # [**********]**#** => ***[*********#]**
-    assert_equal [true, 3, 12], fzf.constrain(0, 12, 15, 10)
-
-    # *****[**#**  ] => ***[**#****]
-    assert_equal [true, 3, 5], fzf.constrain(5, 7, 10, 7)
-
-    # *****[**#** ] => ****[**#***]
-    assert_equal [true, 4, 6], fzf.constrain(5, 7, 10, 6)
-
-    # *****  [#] => ****[#]
-    assert_equal [true, 4, 4], fzf.constrain(10, 10, 5, 1)
-
-    # [ ] #**** => [#]****
-    assert_equal [true, 0, 0], fzf.constrain(-5, 0, 5, 1)
-
-    # [ ] **#** => **[#]**
-    assert_equal [true, 2, 2], fzf.constrain(-5, 2, 5, 1)
-
-    # [*****  #] => [****#   ]
-    assert_equal [true, 0, 4], fzf.constrain(0, 7, 5, 10)
-
-    # **[*****  #] => [******# ]
-    assert_equal [true, 0, 6], fzf.constrain(2, 10, 7, 10)
-  end
-
-  def test_invalid_utf8
-    tmp = Tempfile.new('fzf')
-    tmp << 'hello ' << [0xff].pack('C*') << ' world' << $/ << [0xff].pack('C*')
-    tmp.close
-    begin
-      Timeout::timeout(0.5) do
-        FZF.new(%w[-n..,1,2.. -q^ -x], File.open(tmp.path)).start
-      end
-    rescue Timeout::Error
-      Curses.close_screen
-    end
-  ensure
-    tmp.unlink
-  end
-
-  def test_with_nth_mock_tty
-    # Manual selection with input
-    assert_fzf_output ["--with-nth=2,1"], "hello world", "hello world" do |tty|
-      tty << "world"
-      tty << "hell"
-      tty << "\r"
-    end
-
-    # Manual selection without input
-    assert_fzf_output ["--with-nth=2,1"], "hello world", "hello world" do |tty|
-      tty << "\r"
-    end
-
-    # Manual selection with input and --multi
-    lines = "hello world\ngoodbye world"
-    assert_fzf_output %w[-m --with-nth=2,1], lines, lines do |tty|
-      tty << "o"
-      tty << "\e[Z\e[Z"
-      tty << "\r"
-    end
-
-    # Manual selection without input and --multi
-    assert_fzf_output %w[-m --with-nth=2,1], lines, lines do |tty|
-      tty << "\e[Z\e[Z"
-      tty << "\r"
-    end
-
-    # ALT-D
-    assert_fzf_output %w[--print-query], "", "hello  baby = world" do |tty|
-      tty << "hello world baby"
-      tty << alt(:b) << alt(:b) << alt(:d)
-      tty << ctrl(:e) << " = " << ctrl(:y)
-      tty << "\r"
-    end
-
-    # ALT-BACKSPACE
-    assert_fzf_output %w[--print-query], "", "hello baby = world " do |tty|
-      tty << "hello world baby"
-      tty << alt(:b) << alt(127.chr)
-      tty << ctrl(:e) << " = " << ctrl(:y)
-      tty << "\r"
-    end
-
-    # Word-movements
-    assert_fzf_output %w[--print-query], "", "ello!_orld!~ foo=?" do |tty|
-      tty << "hello_world==baby?"
-      tty << alt(:b) << ctrl(:d)
-      tty << alt(:b) << ctrl(:d)
-      tty << alt(:b) << ctrl(:d)
-      tty << alt(:f) << '!'
-      tty << alt(:f) << '!'
-      tty << alt(:d) << '~'
-      tty << " foo=bar foo=bar"
-      tty << ctrl(:w)
-      tty << alt(127.chr)
-      tty << "\r"
-    end
-  end
-
-  def alt chr
-    "\e#{chr}"
-  end
-
-  def ctrl char
-    char.to_s.ord - 'a'.ord + 1
-  end
-end
-

uninstall

@@ -68,6 +68,7 @@ fi
 
 if [ -d ~/.config/fish/functions ]; then
   remove ~/.config/fish/functions/fzf.fish
+  remove ~/.config/fish/functions/fzf_key_bindings.fish
 
   if [ "$(ls -A ~/.config/fish/functions)" ]; then
     echo "Can't delete non-empty directory: \"~/.config/fish/functions\""