0.12.0

Based on the patch by Matt Westcott (@mjwestcott).
But with a more conservative approach:
- Does not use linearly increasing penalties; It is agreed upon that we
  should prefer matching characters at the beginnings of the words, but
  it's not always clear that the relevance is inversely proportional to
  the distance from the beginning.
- The approach here is more conservative in that the bonus is never
  large enough to override the matchlen, so it can be thought of as the
  first implicit tiebreak criterion.
- One may argue the change breaks the contract of --tiebreak, but the
  judgement depends on the definition of "tie".

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,29 @@
+<!-- Check all that apply [x] -->
+- Category
+    - [ ] fzf binary
+    - [ ] fzf-tmux script
+    - [ ] Key bindings
+    - [ ] Completion
+    - [ ] Vim
+    - [ ] Neovim
+    - [ ] Etc.
+- OS
+    - [ ] Linux
+    - [ ] Mac OS X
+    - [ ] Windows
+    - [ ] Etc.
+- Shell
+    - [ ] bash
+    - [ ] zsh
+    - [ ] fish
+
+<!--
+### Before submitting
+
+- Make sure that you have the latest version of fzf
+- If you use tmux, make sure $TERM is set to screen or screen-256color
+- For more Vim stuff, check out https://github.com/junegunn/fzf.vim
+
+Describe your problem or suggestion from here ...
+-->
+

.gitignore

@@ -1,5 +1,6 @@
 bin
-src/fzf/fzf_*
+src/fzf/fzf-*
+gopath
 pkg
 Gemfile.lock
 .DS_Store

.travis.yml

@@ -4,7 +4,7 @@ rvm:
 
 install:
 - sudo apt-get update
-- sudo apt-get install -y libncurses-dev lib32ncurses5-dev
+- sudo apt-get install -y libncurses-dev lib32ncurses5-dev libgpm-dev
 - sudo add-apt-repository -y ppa:pi-rho/dev
 - sudo apt-add-repository -y ppa:fish-shell/release-2
 - sudo apt-get update

CHANGELOG.md

@@ -1,6 +1,109 @@
 CHANGELOG
 =========
 
+0.12.0
+------
+
+- Enhanced ranking algorithm
+- Minor bug fixes
+
+0.11.4
+------
+
+- Added `--hscroll-off=COL` option (default: 10) (#513)
+- Some fixes in Vim plugin and shell extensions
+
+0.11.3
+------
+
+- Graceful exit on SIGTERM (#482)
+- `$SHELL` instead of `sh` for `execute` action and `$FZF_DEFAULT_COMMAND` (#481)
+- Changes in fuzzy completion API
+    - [`_fzf_compgen_{path,dir}`](https://github.com/junegunn/fzf/commit/9617647)
+    - [`_fzf_complete_COMMAND_post`](https://github.com/junegunn/fzf/commit/8206746)
+      for post-processing
+
+0.11.2
+------
+
+- `--tiebreak` now accepts comma-separated list of sort criteria
+    - Each criterion should appear only once in the list
+    - `index` is only allowed at the end of the list
+    - `index` is implicitly appended to the list when not specified
+    - Default is `length` (or equivalently `length,index`)
+- `begin` criterion will ignore leading whitespaces when calculating the index
+- Added `toggle-in` and `toggle-out` actions
+    - Switch direction depending on `--reverse`-ness
+    - `export FZF_DEFAULT_OPTS="--bind tab:toggle-out,shift-tab:toggle-in"`
+- Reduced the initial delay when `--tac` is not given
+    - fzf defers the initial rendering of the screen up to 100ms if the input
+      stream is ongoing to prevent unnecessary redraw during the initial
+      phase. However, 100ms delay is quite noticeable and might give the
+      impression that fzf is not snappy enough. This commit reduces the
+      maximum delay down to 20ms when `--tac` is not specified, in which case
+      the input list quickly fills the entire screen.
+
+0.11.1
+------
+
+- Added `--tabstop=SPACES` option
+
+0.11.0
+------
+
+- Added OR operator for extended-search mode
+- Added `--execute-multi` action
+- Fixed incorrect cursor position when unicode wide characters are used in
+  `--prompt`
+- Fixes and improvements in shell extensions
+
+0.10.9
+------
+
+- Extended-search mode is now enabled by default
+    - `--extended-exact` is deprecated and instead we have `--exact` for
+      orthogonally controlling "exactness" of search
+- Fixed not to display non-printable characters
+- Added `double-click` for `--bind` option
+- More robust handling of SIGWINCH
+
+0.10.8
+------
+
+- Fixed panic when trying to set colors after colors are disabled (#370)
+
+0.10.7
+------
+
+- Fixed unserialized interrupt handling during execute action which often
+  caused invalid memory access and crash
+- Changed `--tiebreak=length` (default) to use trimmed length when `--nth` is
+  used
+
+0.10.6
+------
+
+- Replaced `--header-file` with `--header` option
+- `--header` and `--header-lines` can be used together
+- Changed exit status
+    - 0: Okay
+    - 1: No match
+    - 2: Error
+    - 130: Interrupted
+- 64-bit linux binary is statically-linked with ncurses to avoid
+  compatibility issues.
+
+0.10.5
+------
+
+- `'`-prefix to unquote the term in `--extended-exact` mode
+- Backward scan when `--tiebreak=end` is set
+
+0.10.4
+------
+
+- Fixed to remove ANSI code from output when `--with-nth` is set
+
 0.10.3
 ------
 

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 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

README.md

@@ -1,4 +1,4 @@
-<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>
+<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)
 ===
 
 fzf is a general-purpose command-line fuzzy finder.
@@ -21,7 +21,7 @@ Pros
 Installation
 ------------
 
-fzf project consists of the followings:
+fzf project consists of the following:
 
 - `fzf` executable
 - `fzf-tmux` script for launching fzf in a tmux pane
@@ -50,10 +50,10 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
 
 ```sh
-brew reinstall --HEAD fzf
+brew install fzf
 
 # Install shell extensions
-/usr/local/Cellar/fzf/HEAD/install
+/usr/local/opt/fzf/install
 ```
 
 #### Install as Vim plugin
@@ -68,7 +68,7 @@ Or you can have [vim-plug](https://github.com/junegunn/vim-plug) manage fzf
 (recommended):
 
 ```vim
-Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': 'yes \| ./install' }
+Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
 ```
 
 #### Upgrading fzf
@@ -78,7 +78,7 @@ while. Please follow the instruction below depending on the installation
 method.
 
 - git: `cd ~/.fzf && git pull && ./install`
-- brew: `brew reinstall --HEAD fzf`
+- brew: `brew update; brew reinstall fzf`
 - vim-plug: `:PlugUpdate fzf`
 
 Usage
@@ -108,31 +108,41 @@ vim $(fzf)
 - Mouse: scroll, click, double-click; shift-click and shift-scroll on
   multi-select mode
 
-#### Extended-search mode
+#### Search syntax
 
-With `-x` or `--extended` option, fzf will start in "extended-search mode".
+Unless otherwise specified, fzf starts in "extended-search mode" where you can
+type in multiple search terms delimited by spaces. e.g. `^music .mp3$ sbtrkt
+!rmx`
 
-In this mode, you can specify multiple patterns delimited by spaces,
-such as: `^music .mp3$ sbtrkt !rmx`
+| Token    | Match type           | Description                      |
+| -------- | -------------------- | -------------------------------- |
+| `sbtrkt` | fuzzy-match          | Items that match `sbtrkt`        |
+| `^music` | prefix-exact-match   | Items that start with `music`    |
+| `.mp3$`  | suffix-exact-match   | Items that end with `.mp3`       |
+| `'wild`  | exact-match (quoted) | Items that include `wild`        |
+| `!rmx`   | inverse-fuzzy-match  | Items that do not match `rmx`    |
+| `!'fire` | inverse-exact-match  | Items that do not include `fire` |
 
-| Token    | Description                      | Match type           |
-| -------- | -------------------------------- | -------------------- |
-| `^music` | Items that start with `music`    | prefix-exact-match   |
-| `.mp3$`  | Items that end with `.mp3`       | suffix-exact-match   |
-| `sbtrkt` | Items that match `sbtrkt`        | fuzzy-match          |
-| `!rmx`   | Items that do not match `rmx`    | inverse-fuzzy-match  |
-| `'wild`  | Items that include `wild`        | exact-match (quoted) |
-| `!'fire` | Items that do not include `fire` | inverse-exact-match  |
+If you don't prefer fuzzy matching and do not wish to "quote" every word,
+start fzf with `-e` or `--exact` option. Note that when  `--exact` is set,
+`'`-prefix "unquotes" the term.
 
-If you don't need fuzzy matching and do not wish to "quote" every word, start
-fzf with `-e` or `--extended-exact` option.
+A single bar character term acts as an OR operator. For example, the following
+query matches entries that start with `core` and end with either `go`, `rb`,
+or `py`.
+
+```
+^core go$ | rb$ | py$
+```
 
 #### Environment variables
 
 - `FZF_DEFAULT_COMMAND`
     - Default command to use when input is tty
+    - e.g. `export FZF_DEFAULT_COMMAND='ag -g ""'`
 - `FZF_DEFAULT_OPTS`
-    - Default options. e.g. `export FZF_DEFAULT_OPTS="--extended --cycle"`
+    - Default options
+    - e.g. `export FZF_DEFAULT_OPTS="--reverse --inline-info"`
 
 Examples
 --------
@@ -249,11 +259,33 @@ export FZF_COMPLETION_TRIGGER='~~'
 
 # Options to fzf command
 export FZF_COMPLETION_OPTS='+c -x'
+
+# Use ag instead of the default find command for listing candidates.
+# - The first argument to the function is the base path to start traversal
+# - Note that ag only lists files not directories
+# - See the source code (completion.{bash,zsh}) for the details.
+_fzf_compgen_path() {
+  ag -g "" "$1"
+}
+```
+
+#### Supported commands
+
+On bash, fuzzy completion is enabled only for a predefined set of commands
+(`complete | grep _fzf` to see the list). But you can enable it for other
+commands as well like follows.
+
+```sh
+# There are also _fzf_path_completion and _fzf_dir_completion
+complete -F _fzf_file_completion -o default -o bashdefault doge
 ```
 
 Usage as Vim plugin
 -------------------
 
+This repository only enables basic integration with Vim. If you're looking for
+more, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
+
 (Note: To use fzf in GVim, an external terminal emulator is required.)
 
 #### `:FZF[!]`
@@ -286,10 +318,8 @@ customization.
 
 #### `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:
+For more advanced uses, you can use `fzf#run()` function with the following
+options.
 
 | Option name                | Type          | Description                                                      |
 | -------------------------- | ------------- | ---------------------------------------------------------------- |
@@ -305,65 +335,7 @@ of the selected items.
 | `launcher`                 | string        | External terminal emulator to start fzf with (GVim only)         |
 | `launcher`                 | funcref       | Function for generating `launcher` string (GVim only)            |
 
-_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.
-
-```vim
-let items = fzf#run({ 'options': '-m +c', 'dir': '~', 'source': 'ls' })
-```
-
-But if `sink` is given as a string, the command will be executed for each
-selected item.
-
-```vim
-" Each selected item will be opened in a new tab
-let items = fzf#run({ 'sink': 'tabe', 'options': '-m +c', 'dir': '~', 'source': 'ls' })
-```
-
-We can also use a Vim list as the source as follows:
-
-```vim
-" Choose a color scheme with fzf
-nnoremap <silent> <Leader>C :call fzf#run({
-\   'source':
-\     map(split(globpath(&rtp, "colors/*.vim"), "\n"),
-\         "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')"),
-\   'sink':     'colo',
-\   'options':  '+m',
-\   'left':     20,
-\   'launcher': 'xterm -geometry 20x30 -e bash -ic %s'
-\ })<CR>
-```
-
-`sink` option can be a function reference. The following example creates a
-handy mapping that selects an open buffer.
-
-```vim
-" List of buffers
-function! s:buflist()
-  redir => ls
-  silent ls
-  redir END
-  return split(ls, '\n')
-endfunction
-
-function! s:bufopen(e)
-  execute 'buffer' matchstr(a:e, '^[ 0-9]*')
-endfunction
-
-nnoremap <silent> <Leader><Enter> :call fzf#run({
-\   'source':  reverse(<sid>buflist()),
-\   'sink':    function('<sid>bufopen'),
-\   'options': '+m',
-\   'down':    len(<sid>buflist()) + 2
-\ })<CR>
-```
-
-More examples can be found on [the wiki
+Examples can be found on [the wiki
 page](https://github.com/junegunn/fzf/wiki/Examples-(vim)).
 
 Tips
@@ -371,7 +343,7 @@ Tips
 
 #### Rendering issues
 
-If you have any rendering issues, check the followings:
+If you have any rendering issues, check the following:
 
 1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
    contains `256` (e.g. `xterm-256color`)
@@ -391,10 +363,10 @@ filtering:
 
 ```sh
 # Feed the output of ag into fzf
-ag -l -g "" | fzf
+ag -g "" | fzf
 
 # Setting ag as the default source for fzf
-export FZF_DEFAULT_COMMAND='ag -l -g ""'
+export FZF_DEFAULT_COMMAND='ag -g ""'
 
 # Now fzf (w/o pipe) will use ag instead of find
 fzf
@@ -411,7 +383,8 @@ speed of the traversal.
 ```sh
 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'
+   find . -path "*/\.*" -prune -o -type f -print -o -type l -print |
+      sed s/^..//) 2> /dev/null'
 ```
 
 #### Fish shell
@@ -425,14 +398,6 @@ of fzf to a temporary file.
 fzf > $TMPDIR/fzf.result; and vim (cat $TMPDIR/fzf.result)
 ```
 
-#### Handling UTF-8 NFD paths on OSX
-
-Use iconv to convert NFD paths to NFC:
-
-```sh
-find . | iconv -f utf-8-mac -t utf8//ignore | fzf
-```
-
 License
 -------
 

bin/fzf-tmux

@@ -82,27 +82,43 @@ while [ $# -gt 0 ]; do
   shift
 done
 
-if [ -z "$TMUX_PANE" ] || tmux list-panes -F '#F' | grep -q Z; then
+if [ -z "$TMUX" ]; then
   fzf "${args[@]}"
   exit $?
 fi
 
+# Handle zoomed tmux pane by moving it to a temp window
+if tmux list-panes -F '#F' | grep -q Z; then
+  zoomed=1
+  original_window=$(tmux display-message -p "#{window_id}")
+  tmp_window=$(tmux new-window -d -P -F "#{window_id}" "bash -c 'while :; do for c in \\| / - \\\\; do sleep 0.2; printf \"\\r\$c fzf-tmux is running\\r\"; done; done'")
+  tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
+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-$id
+argsf="${TMPDIR:-/tmp}/fzf-args-$id"
+fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
+fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
+fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
 cleanup() {
   rm -f $argsf $fifo1 $fifo2 $fifo3
+
+  # Remove temp window if we were zoomed
+  if [ -n "$zoomed" ]; then
+    tmux swap-pane -t $original_window \; \
+      select-window -t $original_window \; \
+      kill-window -t $tmp_window \; \
+      resize-pane -Z
+  fi
 }
 trap cleanup EXIT SIGINT SIGTERM
 
 fail() {
   >&2 echo "$1"
-  exit 1
+  exit 2
 }
 fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
 [ -x "$fzf" ] || fail "fzf executable not found"
@@ -111,26 +127,32 @@ 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
+mkfifo -m o+w $fifo2
+mkfifo -m o+w $fifo3
 
 # Build arguments to fzf
 opts=""
 for arg in "${args[@]}"; do
-  opts="$opts \"${arg//\"/\\\"}\""
+  arg="${arg//\"/\\\"}"
+  arg="${arg//\`/\\\`}"
+  opts="$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
+  tmux set-window-option synchronize-panes off \;\
+    set-window-option remain-on-exit off \;\
+    split-window $opt "cd $(printf %q "$PWD");$envs bash $argsf" $swap \
+    > /dev/null 2>&1
 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
+  tmux set-window-option synchronize-panes off \;\
+    set-window-option remain-on-exit off \;\
+    split-window $opt "$envs bash $argsf" $swap \
+    > /dev/null 2>&1
   cat <&0 > $fifo1 &
 fi
 cat $fifo2
-[ "$(cat $fifo3)" = '0' ]
+exit "$(cat $fifo3)"
 

fzf

@@ -370,7 +370,7 @@ class FZF
     +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])
+                          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)
 
@@ -396,7 +396,7 @@ class FZF
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Defaults options. (e.g. "-x -m --sort 10000")] + $/ + $/
+    FZF_DEFAULT_OPTS      Default options (e.g. "-x -m --sort 10000")] + $/ + $/
    exit x
   end
 

install

@@ -1,36 +1,91 @@
 #!/usr/bin/env bash
 
-[[ "$@" =~ --pre ]] && version=0.10.3 pre=1 ||
-                       version=0.10.3 pre=0
+set -u
 
-cd $(dirname $BASH_SOURCE)
-fzf_base=$(pwd)
+[[ "$@" =~ --pre ]] && version=0.12.0 pre=1 ||
+                       version=0.12.0 pre=0
 
-# If stdin is a tty, we are "interactive".
-[ -t 0 ] && interactive=yes
+auto_completion=
+key_bindings=
+update_config=2
+binary_arch=
+
+help() {
+  cat << EOF
+usage: $0 [OPTIONS]
+
+    --help               Show this message
+    --bin                Download fzf binary only; Do not generate ~/.fzf.{bash,zsh}
+    --all                Download fzf binary and update configuration files
+                         to enable key bindings and fuzzy completion
+    --[no-]key-bindings  Enable/disable key bindings (CTRL-T, CTRL-R, ALT-C)
+    --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
+    --[no-]update-rc     Whether or not to update shell configuration files
+
+    --32                 Download 32-bit binary
+    --64                 Download 64-bit binary
+EOF
+}
+
+for opt in "$@"; do
+  case $opt in
+    --help)
+      help
+      exit 0
+      ;;
+    --all)
+      auto_completion=1
+      key_bindings=1
+      update_config=1
+      ;;
+    --key-bindings)    key_bindings=1    ;;
+    --no-key-bindings) key_bindings=0    ;;
+    --completion)      auto_completion=1 ;;
+    --no-completion)   auto_completion=0 ;;
+    --update-rc)       update_config=1   ;;
+    --no-update-rc)    update_config=0   ;;
+    --32)              binary_arch=386   ;;
+    --64)              binary_arch=amd64 ;;
+    --bin|--pre)       ;;
+    *)
+      echo "unknown option: $opt"
+      help
+      exit 1
+      ;;
+  esac
+done
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+fzf_base="$(pwd)"
 
 ask() {
+  # If stdin is a tty, we are "interactive".
   # non-interactive shell: wait for a linefeed
   #     interactive shell: continue after a single keypress
-  [ -n "$interactive" ] && read_n='-n 1' || read_n=
+  read_n=$([ -t 0 ] && echo "-n 1")
 
   read -p "$1 ([y]/n) " $read_n -r
   echo
-  [[ ! $REPLY =~ ^[Nn]$ ]]
+  [[ $REPLY =~ ^[Nn]$ ]]
 }
 
 check_binary() {
   echo -n "  - Checking fzf executable ... "
-  local output=$("$fzf_base"/bin/fzf --version 2>&1)
-  if [ "$version" = "$output" ]; then
+  local output
+  output=$("$fzf_base"/bin/fzf --version 2>&1)
+  if [ $? -ne 0 ]; then
+    echo "Error: $output"
+    binary_error="Invalid binary"
+  elif [ "$version" != "$output" ]; then
+    echo "$output != $version"
+    binary_error="Invalid version"
+  else
     echo "$output"
     binary_error=""
-  else
-    echo "$output != $version"
-    rm -f "$fzf_base"/bin/fzf
-    binary_error="Invalid binary"
-    return 1
+    return 0
   fi
+  rm -f "$fzf_base"/bin/fzf
+  return 1
 }
 
 symlink() {
@@ -44,15 +99,27 @@ symlink() {
   fi
 }
 
+link_fzf_in_path() {
+  if which_fzf="$(command -v fzf)"; then
+    echo "  - Found in \$PATH"
+    echo "  - Creating symlink: $which_fzf -> bin/fzf"
+    (cd "$fzf_base"/bin && rm -f fzf && ln -sf "$which_fzf" fzf)
+    check_binary && return
+  fi
+  return 1
+}
+
 download() {
   echo "Downloading bin/fzf ..."
   if [ $pre = 0 ]; then
     if [ -x "$fzf_base"/bin/fzf ]; then
       echo "  - Already exists"
       check_binary && return
-    elif [ -x "$fzf_base"/bin/$1 ]; then
+    fi
+    if [ -x "$fzf_base"/bin/$1 ]; then
       symlink $1 && check_binary && return
     fi
+    link_fzf_in_path && return
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
   if [ $? -ne 0 ]; then
@@ -61,9 +128,9 @@ download() {
   fi
 
   local url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}.tgz
-  if which curl > /dev/null; then
+  if command -v curl > /dev/null; then
     curl -fL $url | tar -xz
-  elif which wget > /dev/null; then
+  elif command -v wget > /dev/null; then
     wget -O - $url | tar -xz
   else
     binary_error="curl or wget not found"
@@ -83,26 +150,19 @@ archi=$(uname -sm)
 binary_available=1
 binary_error=""
 case "$archi" in
-  Darwin\ x86_64) download fzf-$version-darwin_amd64 ;;
-  Darwin\ i*86)   download fzf-$version-darwin_386   ;;
-  Linux\ x86_64)  download fzf-$version-linux_amd64  ;;
-  Linux\ i*86)    download fzf-$version-linux_386    ;;
+  Darwin\ x86_64) download fzf-$version-darwin_${binary_arch:-amd64} ;;
+  Darwin\ i*86)   download fzf-$version-darwin_${binary_arch:-386}   ;;
+  Linux\ x86_64)  download fzf-$version-linux_${binary_arch:-amd64}  ;;
+  Linux\ i*86)    download fzf-$version-linux_${binary_arch:-386}    ;;
   *)              binary_available=0 binary_error=1  ;;
 esac
 
-cd "$fzf_base"
-if [ -n "$binary_error" ]; then
-  if [ $binary_available -eq 0 ]; then
-    echo "No prebuilt binary for $archi ... "
-  else
-    echo "  - $binary_error !!!"
-    exit 1
-  fi
+install_ruby_fzf() {
   echo "Installing legacy Ruby version ..."
 
   # ruby executable
   echo -n "Checking Ruby executable ... "
-  ruby=`which ruby`
+  ruby=$(command -v ruby)
   if [ $? -ne 0 ]; then
     echo "ruby executable not found !!!"
     exit 1
@@ -110,7 +170,7 @@ if [ -n "$binary_error" ]; then
 
   # System ruby is preferred
   system_ruby=/usr/bin/ruby
-  if [ -x $system_ruby -a $system_ruby != "$ruby" ]; then
+  if [ -x $system_ruby ] && [ $system_ruby != "$ruby" ]; then
     $system_ruby --disable-gems -rcurses -e0 2> /dev/null
     [ $? -eq 0 ] && ruby=$system_ruby
   fi
@@ -163,43 +223,72 @@ if [ -n "$binary_error" ]; then
   echo "$fzf_cmd \"\$@\"" >> "$fzf_base"/bin/fzf
   chmod +x "$fzf_base"/bin/fzf
   echo "OK"
+}
+
+cd "$fzf_base"
+if [ -n "$binary_error" ]; then
+  if [ $binary_available -eq 0 ]; then
+    echo "No prebuilt binary for $archi ..."
+    if command -v go > /dev/null; then
+      echo -n "Building binary (go get github.com/junegunn/fzf/src/fzf) ... "
+      if go get github.com/junegunn/fzf/src/fzf; then
+        echo "OK"
+        link_fzf_in_path
+      else
+        echo "Failed to build binary ..."
+        install_ruby_fzf
+      fi
+    else
+      echo "go executable not found. Cannot build binary ..."
+      install_ruby_fzf
+    fi
+  else
+    echo "  - $binary_error !!!"
+    exit 1
+  fi
 fi
 
 [[ "$*" =~ "--bin" ]] && exit 0
 
 # Auto-completion
-ask "Do you want to add auto-completion support?"
-auto_completion=$?
+if [ -z "$auto_completion" ]; then
+  ask "Do you want to enable fuzzy auto-completion?"
+  auto_completion=$?
+fi
 
 # Key-bindings
-ask "Do you want to add key bindings?"
-key_bindings=$?
+if [ -z "$key_bindings" ]; then
+  ask "Do you want to enable key bindings?"
+  key_bindings=$?
+fi
 
 echo
-for shell in bash zsh; do
+has_zsh=$(command -v zsh > /dev/null && echo 1 || echo 0)
+shells=$([ $has_zsh -eq 1 ] && echo "bash zsh" || echo "bash")
+for shell in $shells; do
   echo -n "Generate ~/.fzf.$shell ... "
   src=~/.fzf.${shell}
 
-  fzf_completion="[[ \$- =~ i ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
-  if [ $auto_completion -ne 0 ]; then
+  fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
+  if [ $auto_completion -eq 0 ]; then
     fzf_completion="# $fzf_completion"
   fi
 
   fzf_key_bindings="source \"$fzf_base/shell/key-bindings.${shell}\""
-  if [ $key_bindings -ne 0 ]; then
+  if [ $key_bindings -eq 0 ]; then
     fzf_key_bindings="# $fzf_key_bindings"
   fi
 
   cat > $src << EOF
 # Setup fzf
 # ---------
-if [[ ! "\$PATH" =~ "$fzf_base/bin" ]]; then
+if [[ ! "\$PATH" == *$fzf_base/bin* ]]; then
   export PATH="\$PATH:$fzf_base/bin"
 fi
 
 # Man path
 # --------
-if [[ ! "\$MANPATH" =~ "$fzf_base/man" && -d "$fzf_base/man" ]]; then
+if [[ ! "\$MANPATH" == *$fzf_base/man* && -d "$fzf_base/man" ]]; then
   export MANPATH="\$MANPATH:$fzf_base/man"
 fi
 
@@ -216,9 +305,8 @@ EOF
 done
 
 # fish
-has_fish=0
-if [ -n "$(which fish 2> /dev/null)" ]; then
-  has_fish=1
+has_fish=$(command -v fish > /dev/null && echo 1 || echo 0)
+if [ $has_fish -eq 1 ]; then
   echo -n "Update fish_user_paths ... "
   fish << EOF
   echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
@@ -232,51 +320,74 @@ EOF
     rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
   fi
 
-  if [ $key_bindings -eq 0 ]; then
-    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"
+  fish_binding=~/.config/fish/functions/fzf_key_bindings.fish
+  if [ $key_bindings -ne 0 ]; then
+    echo -n "Symlink $fish_binding ... "
+    ln -sf "$fzf_base/shell/key-bindings.fish" \
+           "$fish_binding" && echo "OK" || echo "Failed"
+  else
+    echo -n "Removing $fish_binding ... "
+    rm -f "$fish_binding"
+    echo "OK"
   fi
 fi
 
 append_line() {
-  echo "Update $2:"
-  echo "  - $1"
-  [ -f "$2" ] || touch "$2"
-  if [ $# -lt 3 ]; then
-    line=$(\grep -nF "$1" "$2" | sed 's/:.*//' | tr '\n' ' ')
+  set -e
+
+  local update line file pat lno
+  update="$1"
+  line="$2"
+  file="$3"
+  pat="${4:-}"
+
+  echo "Update $file:"
+  echo "  - $line"
+  [ -f "$file" ] || touch "$file"
+  if [ $# -lt 4 ]; then
+    lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
   else
-    line=$(\grep -nF "$3" "$2" | sed 's/:.*//' | tr '\n' ' ')
+    lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
   fi
-  if [ -n "$line" ]; then
-    echo "    - Already exists: line #$line"
+  if [ -n "$lno" ]; then
+    echo "    - Already exists: line #$lno"
   else
-    echo >> "$2"
-    echo "$1" >> "$2"
-    echo "    + Added"
+    if [ $update -eq 1 ]; then
+      echo >> "$file"
+      echo "$line" >> "$file"
+      echo "    + Added"
+    else
+      echo "    ~ Skipped"
+    fi
   fi
   echo
+  set +e
 }
 
+if [ $update_config -eq 2 ]; then
+  echo
+  ask "Do you want to update your shell configuration files?"
+  update_config=$?
+fi
 echo
-for shell in bash zsh; do
-  append_line "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" ~/.${shell}rc "~/.fzf.${shell}"
+for shell in $shells; do
+  [ $shell = zsh ] && dest=${ZDOTDIR:-~}/.zshrc || dest=~/.bashrc
+  append_line $update_config "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" "$dest" "~/.fzf.${shell}"
 done
 
-if [ $key_bindings -eq 0 -a $has_fish -eq 1 ]; then
+if [ $key_bindings -eq 1 ] && [ $has_fish -eq 1 ]; then
   bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
-  append_line "fzf_key_bindings" "$bind_file"
+  append_line $update_config "fzf_key_bindings" "$bind_file"
 fi
 
-cat << EOF
-Finished. Restart your shell or reload config file.
-   source ~/.bashrc  # bash
-   source ~/.zshrc   # zsh
-EOF
-[ $has_fish -eq 1 ] && echo "   fzf_key_bindings  # fish"; cat << EOF
-
-Use uninstall script to remove fzf.
-
-For more information, see: https://github.com/junegunn/fzf
-EOF
+if [ $update_config -eq 1 ]; then
+  echo 'Finished. Restart your shell or reload config file.'
+  echo '   source ~/.bashrc  # bash'
+  [ $has_zsh  -eq 1 ] && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
+  [ $has_fish -eq 1 ] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
+  echo
+  echo 'Use uninstall script to remove fzf.'
+  echo
+fi
+echo 'For more information, see: https://github.com/junegunn/fzf'
 

man/man1/fzf.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Aug 2015" "fzf 0.10.3" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Apr 2016" "fzf 0.12.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -36,10 +36,11 @@ fzf is a general-purpose command-line fuzzy finder.
 .SS Search mode
 .TP
 .B "-x, --extended"
-Extended-search mode
+Extended-search mode. Since 0.10.9, this is enabled by default. You can disable
+it with \fB+x\fR or \fB--no-extended\fR.
 .TP
-.B "-e, --extended-exact"
-Extended-search mode (exact match)
+.B "-e, --exact"
+Enable exact-match
 .TP
 .B "-i"
 Case-insensitive match (default: smart-case match)
@@ -67,10 +68,10 @@ Reverse the order of the input
 e.g. \fBhistory | fzf --tac --no-sort\fR
 .RE
 .TP
-.BI "--tiebreak=" "CRI"
-Sort criterion to use when the scores are tied
+.BI "--tiebreak=" "CRI[,..]"
+Comma-separated list of sort criteria to apply when the scores are tied.
 .br
-.R ""
+
 .br
 .BR length "  Prefers item with shorter length"
 .br
@@ -80,6 +81,15 @@ Sort criterion to use when the scores are tied
 .br
 .BR index "   Prefers item that appeared earlier in the input stream"
 .br
+
+.br
+- Each criterion should appear only once in the list
+.br
+- \fBindex\fR is only allowed at the end of the list
+.br
+- \fBindex\fR is implicitly appended to the list when not specified
+.br
+- Default is \fBlength\fR (or equivalently \fBlength\fR,index)
 .SS Interface
 .TP
 .B "-m, --multi"
@@ -134,7 +144,7 @@ Reverse orientation
 .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"
@@ -145,23 +155,31 @@ Comma-separated expression for margins around the finder.
 .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
+.BI "--tabstop=" SPACES
+Number of spaces for a tab character (default: 8)
+.TP
 .B "--cycle"
 Enable cyclic scroll
 .TP
 .B "--no-hscroll"
 Disable horizontal scroll
 .TP
+.BI "--hscroll-off=" "COL"
+Number of screen columns to keep to the right of the highlighted substring
+(default: 10). Setting it to a large value will cause the text to be positioned
+on the center of the screen.
+.TP
 .B "--inline-info"
 Display finder info inline with the query
 .TP
@@ -179,11 +197,11 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
 .RE
 
 .RS
-.B AVAILABLE KEYS:
+.B AVAILABLE KEYS:    (SYNONYMS)
     \fIctrl-[a-z]\fR
     \fIalt-[a-z]\fR
     \fIf[1-4]\fR
-    \fIenter\fR       (\fIreturn\fR)
+    \fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
     \fIspace\fR
     \fIbspace\fR      (\fIbs\fR)
     \fIalt-bspace\fR  (\fIalt-bs\fR)
@@ -201,13 +219,14 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fIpgdn\fR        (\fIpage-down\fR)
     \fIshift-left\fR
     \fIshift-right\fR
+    \fIdouble-click\fR
     or any single character
 .RE
 
 .RS
-  \fBACTION:               DEFAULT BINDINGS:
+  \fBACTION:               DEFAULT BINDINGS (NOTES):
     \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
-    \fBaccept\fR                \fIctrl-m  (enter)\fR
+    \fBaccept\fR                \fIenter   double-click\fR
     \fBbackward-char\fR         \fIctrl-b  left\fR
     \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
     \fBbackward-kill-word\fR    \fIalt-bs\fR
@@ -221,6 +240,7 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
     \fBend-of-line\fR           \fIctrl-e  end\fR
     \fBexecute(...)\fR          (see below for the details)
+    \fBexecute-multi(...)\fR    (see below for the details)
     \fBforward-char\fR          \fIctrl-f  right\fR
     \fBforward-word\fR          \fIalt-f   shift-right\fR
     \fBignore\fR
@@ -234,6 +254,8 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fBtoggle\fR
     \fBtoggle-all\fR
     \fBtoggle-down\fR           \fIctrl-i  (tab)\fR
+    \fBtoggle-in\fR             (\fB--reverse\fR ? \fBtoggle-up\fR : \fBtoggle-down\fR)
+    \fBtoggle-out\fR            (\fB--reverse\fR ? \fBtoggle-down\fR : \fBtoggle-up\fR)
     \fBtoggle-sort\fR           (equivalent to \fB--toggle-sort\fR)
     \fBtoggle-up\fR             \fIbtab    (shift-tab)\fR
     \fBunix-line-discard\fR     \fIctrl-u\fR
@@ -274,6 +296,12 @@ 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
+
+\fBexecute-multi(...)\fR is an alternative action that executes the command
+with the selected entries when multi-select is enabled (\fB--multi\fR). With
+this action, \fB{}\fR is replaced with the double-quoted strings of the
+selected entries separated by spaces.
+
 .RE
 .TP
 .BI "--history=" "HISTORY_FILE"
@@ -285,11 +313,11 @@ When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
 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.
+.BI "--header=" "STR"
+The given string will be printed as the sticky header. The lines are displayed
+in the given order from top to bottom regardless of \fB--reverse\fR option, and
+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
@@ -341,7 +369,11 @@ 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"
+.BR 1 "      No match"
+.br
+.BR 2 "      Error"
+.br
+.BR 130 "    Interrupted with \fBCTRL-C\fR or \fBESC\fR"
 
 .SH FIELD INDEX EXPRESSION
 
@@ -369,34 +401,51 @@ of field index expressions.
 
 .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
+Unless specified otherwise, fzf will start in "extended-search mode". In this
+mode, you can specify multiple patterns delimited by spaces, such as: \fB'wild
+^music .mp3$ sbtrkt !rmx\fR
 
 .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.
+A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
+an "exact-match" (or "non-fuzzy") term. fzf will search for the exact
+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.
+A term can be prefixed by \fB^\fR, or suffixed by \fB$\fR 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.
+If a term is prefixed by \fB!\fR, 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).
+.SS Exact-match by default
+If you don't prefer fuzzy matching and do not wish to "quote" (prefixing with
+\fB'\fR) every word, start fzf with \fB-e\fR or \fB--exact\fR option. Note that
+when \fB--exact\fR is set, \fB'\fR-prefix "unquotes" the term.
+
+.SS OR operator
+A single bar character term acts as an OR operator. For example, the following
+query matches entries that start with \fBcore\fR and end with either \fBgo\fR,
+\fBrb\fR, or \fBpy\fR.
+
+e.g. \fB^core go$ | rb$ | py$\fR
 
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 
 .SH SEE ALSO
+.B Project homepage:
+.RS
 .I https://github.com/junegunn/fzf
+.RE
+.br
+
+.br
+.B Extra Vim plugin:
+.RS
+.I https://github.com/junegunn/fzf.vim
+.RE
 
 .SH LICENSE
 MIT

plugin/fzf.vim

@@ -1,4 +1,4 @@
-" Copyright (c) 2015 Junegunn Choi
+" Copyright (c) 2016 Junegunn Choi
 "
 " MIT License
 "
@@ -40,9 +40,7 @@ function! s:fzf_exec()
           \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
       echo
-      echohl WarningMsg
-      echo 'Downloading fzf binary. Please wait ...'
-      echohl None
+      call s:warn('Downloading fzf binary. Please wait ...')
       let s:installed = 1
       call system(s:install.' --bin')
       return s:fzf_exec()
@@ -54,17 +52,13 @@ function! s:fzf_exec()
   return s:exec
 endfunction
 
-function! s:tmux_not_zoomed()
-  return system('tmux list-panes -F "#F"') !~# 'Z'
-endfunction
-
 function! s:tmux_enabled()
   if has('gui_running')
     return 0
   endif
 
   if exists('s:tmux')
-    return s:tmux && s:tmux_not_zoomed()
+    return s:tmux
   endif
 
   let s:tmux = 0
@@ -72,7 +66,7 @@ function! s:tmux_enabled()
     let output = system('tmux -V')
     let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   endif
-  return s:tmux && s:tmux_not_zoomed()
+  return s:tmux
 endfunction
 
 function! s:shellesc(arg)
@@ -80,7 +74,7 @@ function! s:shellesc(arg)
 endfunction
 
 function! s:escape(path)
-  return escape(a:path, ' %#\')
+  return escape(a:path, ' $%#''"\')
 endfunction
 
 " Upgrade legacy options
@@ -98,14 +92,24 @@ function! s:upgrade(dict)
   return copy
 endfunction
 
+function! s:error(msg)
+  echohl ErrorMsg
+  echom a:msg
+  echohl None
+endfunction
+
+function! s:warn(msg)
+  echohl WarningMsg
+  echom a:msg
+  echohl None
+endfunction
+
 function! fzf#run(...) abort
 try
   let oshell = &shell
   set shell=sh
   if has('nvim') && bufexists('term://*:FZF')
-    echohl WarningMsg
-    echomsg 'FZF is already running!'
-    echohl None
+    call s:warn('FZF is already running!')
     return []
   endif
   let dict   = exists('a:1') ? s:upgrade(a:1) : {}
@@ -135,17 +139,13 @@ try
   let tmux = !has('nvim') && s:tmux_enabled() && s:splittable(dict)
   let command = prefix.(tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
 
-  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
+  if has('nvim')
+    return s:execute_term(dict, command, temps)
+  endif
+
+  let ret = tmux ? s:execute_tmux(dict, command, temps) : s:execute(dict, command, temps)
+  call s:popd(dict, ret)
+  return ret
 finally
   let &shell = oshell
 endtry
@@ -164,7 +164,13 @@ 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])
+      let spec = a:dict[o]
+      if (o == 'up' || o == 'down') && spec[0] == '~'
+        let size = '-'.o[0].s:calc_size(&lines, spec[1:], a:dict)
+      else
+        " Legacy boolean option
+        let size = '-'.o[0].(spec == 1 ? '' : spec)
+      endif
       break
     endif
   endfor
@@ -183,23 +189,35 @@ function! s:pushd(dict)
       return 1
     endif
     let a:dict.prev_dir = cwd
-    execute 'chdir '.s:escape(a:dict.dir)
+    execute 'chdir' s:escape(a:dict.dir)
     let a:dict.dir = getcwd()
     return 1
   endif
   return 0
 endfunction
 
-function! s:popd(dict)
-  if has_key(a:dict, 'prev_dir')
-    execute 'chdir '.s:escape(remove(a:dict, 'prev_dir'))
+function! s:popd(dict, lines)
+  " Since anything can be done in the sink function, there is no telling that
+  " the change of the working directory was made by &autochdir setting.
+  "
+  " We use the following heuristic to determine whether to restore CWD:
+  " - Always restore the current directory when &autochdir is disabled.
+  "   FIXME This makes it impossible to change directory from inside the sink
+  "   function when &autochdir is not used.
+  " - In case of an error or an interrupt, a:lines will be empty.
+  "   And it will be an array of a single empty string when fzf was finished
+  "   without a match. In these cases, we presume that the change of the
+  "   directory is not expected and should be undone.
+  if has_key(a:dict, 'prev_dir') &&
+        \ (!&autochdir || (empty(a:lines) || len(a:lines) == 1 && empty(a:lines[0])))
+    execute 'chdir' s:escape(remove(a:dict, 'prev_dir'))
   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"'
+    let fmt .= '&& osascript -e "tell application \"MacVim\" to activate"'
   endif
   return printf(fmt,
     \ synIDattr(hlID("Normal"), "bg"), synIDattr(hlID("Normal"), "fg"),
@@ -208,31 +226,36 @@ endfunction
 unlet! s:launcher
 let s:launcher = function('s:xterm_launcher')
 
-function! s:execute(dict, command, temps)
+function! s:exit_handler(code, command, ...)
+  if a:code == 130
+    return 0
+  elseif a:code > 1
+    call s:error('Error running ' . a:command)
+    if !empty(a:000)
+      sleep
+    endif
+    return 0
+  endif
+  return 1
+endfunction
+
+function! s:execute(dict, command, temps) abort
   call s:pushd(a:dict)
   silent! !clear 2> /dev/null
+  let escaped = escape(substitute(a:command, '\n', '\\n', 'g'), '%#')
   if has('gui_running')
     let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
     let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
-    let command = printf(fmt, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
+    let command = printf(fmt, "'".substitute(escaped, "'", "'\"'\"'", 'g')."'")
   else
-    let command = a:command
+    let command = escaped
   endif
   execute 'silent !'.command
   redraw!
-  if v:shell_error
-    " Do not print error message on exit status 1
-    if v:shell_error > 1
-      echohl ErrorMsg
-      echo 'Error running ' . command
-    endif
-    return []
-  else
-    return s:callback(a:dict, a:temps)
-  endif
+  return s:exit_handler(v:shell_error, command) ? s:callback(a:dict, a:temps) : []
 endfunction
 
-function! s:execute_tmux(dict, command, temps)
+function! s:execute_tmux(dict, command, temps) abort
   let command = a:command
   if s:pushd(a:dict)
     " -c '#{pane_current_path}' is only available on tmux 1.9 or above
@@ -241,19 +264,28 @@ function! s:execute_tmux(dict, command, temps)
 
   call system(command)
   redraw!
-  return s:callback(a:dict, a:temps)
+  return s:exit_handler(v:shell_error, command) ? s:callback(a:dict, a:temps) : []
 endfunction
 
-function! s:calc_size(max, val)
+function! s:calc_size(max, val, dict)
   if a:val =~ '%$'
-    return a:max * str2nr(a:val[:-2]) / 100
+    let size = a:max * str2nr(a:val[:-2]) / 100
   else
-    return min([a:max, a:val])
+    let size = min([a:max, str2nr(a:val)])
   endif
+
+  let srcsz = -1
+  if type(get(a:dict, 'source', 0)) == type([])
+    let srcsz = len(a:dict.source)
+  endif
+
+  let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
+  let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
+  return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
 
 function! s:getpos()
-  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$')}
+  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
 endfunction
 
 function! s:split(dict)
@@ -268,7 +300,11 @@ function! s:split(dict)
       let val = get(a:dict, dir, '')
       if !empty(val)
         let [cmd, resz, max] = triple
-        let sz = s:calc_size(max, val)
+        if (dir == 'up' || dir == 'down') && val[0] == '~'
+          let sz = s:calc_size(max, val[1:], a:dict)
+        else
+          let sz = s:calc_size(max, val, {})
+        endif
         execute cmd sz.'new'
         execute resz sz
         return
@@ -277,18 +313,18 @@ function! s:split(dict)
     if s:present(a:dict, 'window')
       execute a:dict.window
     else
-      tabnew
+      execute (tabpagenr()-1).'tabnew'
     endif
   finally
     setlocal winfixwidth winfixheight buftype=nofile bufhidden=wipe nobuflisted
   endtry
 endfunction
 
-function! s:execute_term(dict, command, temps)
+function! s:execute_term(dict, command, temps) abort
   call s:split(a:dict)
-  call s:pushd(a:dict)
 
   let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
+  let s:command = a:command
   function! fzf.on_exit(id, code)
     let pos = s:getpos()
     let inplace = pos == s:ppos " {'window': 'enew'}
@@ -302,10 +338,15 @@ function! s:execute_term(dict, command, temps)
         wincmd p
       endif
     endif
+
+    if !s:exit_handler(a:code, s:command, 1)
+      return
+    endif
+
     call s:pushd(self.dict)
+    let ret = []
     try
-      redraw!
-      call s:callback(self.dict, self.temps)
+      let ret = s:callback(self.dict, self.temps)
 
       if inplace && bufnr('') == self.buf
         execute "normal! \<c-^>"
@@ -315,20 +356,23 @@ function! s:execute_term(dict, command, temps)
         endif
       endif
     finally
-      call s:popd(self.dict)
+      call s:popd(self.dict, ret)
     endtry
   endfunction
 
+  call s:pushd(a:dict)
   call termopen(a:command, fzf)
+  call s:popd(a:dict, [])
+  setlocal nospell
+  setf fzf
   startinsert
   return []
 endfunction
 
-function! s:callback(dict, temps)
+function! s:callback(dict, temps) abort
+let lines = []
 try
-  if !filereadable(a:temps.result)
-    let lines = []
-  else
+  if filereadable(a:temps.result)
     let lines = readfile(a:temps.result)
     if has_key(a:dict, 'sink')
       for line in lines
@@ -347,18 +391,18 @@ try
   for tf in values(a:temps)
     silent! call delete(tf)
   endfor
-
-  return lines
 catch
   if stridx(v:exception, ':E325:') < 0
     echoerr v:exception
   endif
+finally
+  return lines
 endtry
 endfunction
 
 let s:default_action = {
   \ 'ctrl-m': 'e',
-  \ 'ctrl-t': 'tabedit',
+  \ 'ctrl-t': 'tab split',
   \ 'ctrl-x': 'split',
   \ 'ctrl-v': 'vsplit' }
 
@@ -368,14 +412,30 @@ function! s:cmd_callback(lines) abort
   endif
   let key = remove(a:lines, 0)
   let cmd = get(s:action, key, 'e')
+  if len(a:lines) > 1
+    augroup fzf_swap
+      autocmd SwapExists * let v:swapchoice='o'
+            \| call s:warn('fzf: E325: swap file exists: '.expand('<afile>'))
+    augroup END
+  endif
   try
+    let empty = empty(expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
     let autochdir = &autochdir
     set noautochdir
     for item in a:lines
-      execute cmd s:escape(item)
+      if empty
+        execute 'e' s:escape(item)
+        let empty = 0
+      else
+        execute cmd s:escape(item)
+      endif
+      if exists('#BufEnter') && isdirectory(item)
+        doautocmd BufEnter
+      endif
     endfor
   finally
     let &autochdir = autochdir
+    silent! autocmd! fzf_swap
   endtry
 endfunction
 
@@ -384,7 +444,7 @@ function! s:cmd(bang, ...) abort
   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)
+    let opts.dir = substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g')
   endif
   if !a:bang
     let opts.down = get(g:, 'fzf_height', get(g:, 'fzf_tmux_height', s:default_height))

shell/completion.bash

@@ -10,9 +10,29 @@
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+# To use custom commands instead of find, override _fzf_compgen_{path,dir}
+if ! declare -f _fzf_compgen_path > /dev/null; then
+  _fzf_compgen_path() {
+    echo "$1"
+    \find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+if ! declare -f _fzf_compgen_dir > /dev/null; then
+  _fzf_compgen_dir() {
+    \find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o -type d \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+###########################################################
+
 _fzf_orig_completion_filter() {
-  sed 's/.*-F *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\2=\1;/' |
-  sed 's/[^a-z0-9_= ;]/_/g'
+  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2";/' |
+  awk -F= '{gsub(/[^a-z0-9_= ;]/, "_", $1); print $1"="$2}'
 }
 
 _fzf_opts_completion() {
@@ -22,7 +42,7 @@ _fzf_opts_completion() {
   prev="${COMP_WORDS[COMP_CWORD-1]}"
   opts="
     -x --extended
-    -e --extended-exact
+    -e --exact
     -i +i
     -n --nth
     -d --delimiter
@@ -49,27 +69,27 @@ _fzf_opts_completion() {
     --cycle
     --history
     --history-size
-    --header-file
+    --header
     --header-lines
     --margin"
 
   case "${prev}" in
   --tiebreak)
-    COMPREPLY=( $(compgen -W "length begin end index" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "length begin end index" -- "$cur") )
     return 0
     ;;
   --color)
-    COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "dark light 16 bw" -- "$cur") )
     return 0
     ;;
-  --history|--header-file)
+  --history)
     COMPREPLY=()
     return 0
     ;;
   esac
 
-  if [[ ${cur} =~ ^-|\+ ]]; then
-    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+  if [[ "$cur" =~ ^-|\+ ]]; then
+    COMPREPLY=( $(compgen -W "${opts}" -- "$cur") )
     return 0
   fi
 
@@ -77,42 +97,43 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig ret orig_cmd
+  local cmd orig_var orig ret orig_cmd
   cmd="$1"
   shift
   orig_cmd="$1"
-
-  orig=$(eval "echo \$_fzf_orig_completion_$cmd")
+  orig_var="_fzf_orig_completion_$cmd"
+  orig="${!orig_var##*#}"
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
     $orig "$@"
   elif [ -n "$_fzf_completion_loader" ]; then
     _completion_loader "$@"
     ret=$?
-    eval $(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)
-    source $BASH_SOURCE
+    eval "$(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)"
+    source "${BASH_SOURCE[0]}"
     return $ret
   fi
 }
 
-_fzf_path_completion() {
+__fzf_generic_path_completion() {
   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 ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
+  [ "${FZF_TMUX:-1}" != 0 ] && 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-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ ${cur} == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]]; then
     base=${cur:0:${#cur}-${#trigger}}
-    eval base=$base
+    eval "base=$base"
 
     dir="$base"
-    while [ 1 ]; do
-      if [ -z "$dir" -o -d "$dir" ]; then
+    while true; do
+      if [ -z "$dir" ] || [ -d "$dir" ]; then
         leftover=${base/#"$dir"}
         leftover=${leftover/#\/}
-        [ "$dir" = './' ] && dir=''
+        [ -z "$dir" ] && dir='.'
+        [ "$dir" != "/" ] && dir="${dir/%\//}"
         tput sc
-        matches=$(find -L "$dir"* $1 2> /dev/null | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
+        matches=$(eval "$1 $(printf %q "$dir")" | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read -r item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
@@ -135,19 +156,21 @@ _fzf_path_completion() {
   fi
 }
 
-_fzf_list_completion() {
-  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 ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
+_fzf_complete() {
+  local cur selected trigger cmd fzf post
+  post="$(caller 0 | awk '{print $2}')_post"
+  type -t "$post" > /dev/null 2>&1 || post=cat
+  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+
+  cmd=$(echo "${COMP_WORDS[0]}" | sed 's/[^a-z0-9_=]/_/g')
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ ${cur} == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
     tput sc
-    selected=$(eval "$src | $fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
-    selected=${selected% }
+    selected=$(cat | $fzf $FZF_COMPLETION_OPTS $1 -q "$cur" | $post | tr '\n' ' ')
+    selected=${selected% } # Strip trailing space not to repeat "-o nospace"
     tput rc
 
     if [ -n "$selected" ]; then
@@ -160,29 +183,24 @@ _fzf_list_completion() {
   fi
 }
 
-_fzf_all_completion() {
-  _fzf_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
-    "-m" "" "$@"
+_fzf_path_completion() {
+  __fzf_generic_path_completion _fzf_compgen_path "-m" "" "$@"
 }
 
+# Deprecated. No file only completion.
 _fzf_file_completion() {
-  _fzf_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type f -print -o -type l -print" \
-    "-m" "" "$@"
+  _fzf_path_completion "$@"
 }
 
 _fzf_dir_completion() {
-  _fzf_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type d -print" \
-    "" "/" "$@"
+  __fzf_generic_path_completion _fzf_compgen_dir "" "/" "$@"
 }
 
-_fzf_kill_completion() {
+_fzf_complete_kill() {
   [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
 
   local selected fzf
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  [ "${FZF_TMUX:-1}" != 0 ] && 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' ' ')
   tput rc
@@ -193,40 +211,48 @@ _fzf_kill_completion() {
   fi
 }
 
-_fzf_telnet_completion() {
-  _fzf_list_completion '+m' "$@" << "EOF"
-  \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
-EOF
+_fzf_complete_telnet() {
+  _fzf_complete '+m' "$@" < <(
+    \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' |
+        awk '{if (length($2) > 0) {print $2}}' | sort -u
+  )
 }
 
-_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 | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
-EOF
+_fzf_complete_ssh() {
+  _fzf_complete '+m' "$@" < <(
+    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
+  )
 }
 
-_fzf_env_var_completion() {
-  _fzf_list_completion '-m' "$@" << "EOF"
-  declare -xp | sed 's/=.*//' | sed 's/.* //'
-EOF
+_fzf_complete_unset() {
+  _fzf_complete '-m' "$@" < <(
+    declare -xp | sed 's/=.*//' | sed 's/.* //'
+  )
 }
 
-_fzf_alias_completion() {
-  _fzf_list_completion '-m' "$@" << "EOF"
-  alias | sed 's/=.*//' | sed 's/.* //'
-EOF
+_fzf_complete_export() {
+  _fzf_complete '-m' "$@" < <(
+    declare -xp | sed 's/=.*//' | sed 's/.* //'
+  )
+}
+
+_fzf_complete_unalias() {
+  _fzf_complete '-m' "$@" < <(
+    alias | sed 's/=.*//' | sed 's/.* //'
+  )
 }
 
 # fzf options
 complete -o default -F _fzf_opts_completion fzf
 
-d_cmds="cd pushd rmdir"
-f_cmds="
-  awk cat diff diff3
-  emacs ex file ftp g++ gcc gvim head hg java
-  javac ld less more mvim patch perl python ruby
-  sed sftp sort source tail tee uniq vi view vim wc"
+d_cmds="${FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir}"
 a_cmds="
+  awk cat diff diff3
+  emacs emacsclient ex file ftp g++ gcc gvim head hg java
+  javac ld less more mvim nvim patch perl python ruby
+  sed sftp sort source tail tee uniq vi view vim wc xdg-open
   basename bunzip2 bzip2 chmod chown curl cp dirname du
   find git grep gunzip gzip hg jar
   ln ls mv open rm rsync scp
@@ -234,42 +260,53 @@ a_cmds="
 x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-if [ "$_fzf_completion_loaded" != '0.9.12' ]; then
+if [ "$_fzf_completion_loaded" != '0.11.3' ]; 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=0.9.12
+    \grep -E " ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
+  export _fzf_completion_loaded=0.11.3
 fi
 
 if type _completion_loader > /dev/null 2>&1; then
   _fzf_completion_loader=1
 fi
 
-# Directory
-for cmd in $d_cmds; do
-  complete -F _fzf_dir_completion -o nospace -o plusdirs $cmd
-done
-
-# File
-for cmd in $f_cmds; do
-  complete -F _fzf_file_completion -o default -o bashdefault $cmd
-done
+_fzf_defc() {
+  local cmd func opts orig_var orig
+  cmd="$1"
+  func="$2"
+  opts="$3"
+  orig_var="_fzf_orig_completion_$cmd"
+  orig="${!orig_var}"
+  if [ -n "$orig" ]; then
+    eval "$(printf "$orig" "$func")"
+  else
+    complete -F "$func" $opts "$cmd"
+  fi
+}
 
 # Anything
 for cmd in $a_cmds; do
-  complete -F _fzf_all_completion -o default -o bashdefault $cmd
+  _fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
 done
 
+# Directory
+for cmd in $d_cmds; do
+  _fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o plusdirs"
+done
+
+unset _fzf_defc
+
 # Kill completion
-complete -F _fzf_kill_completion -o nospace -o default -o bashdefault kill
+complete -F _fzf_complete_kill -o nospace -o default -o bashdefault kill
 
 # Host completion
-complete -F _fzf_ssh_completion -o default -o bashdefault ssh
-complete -F _fzf_telnet_completion -o default -o bashdefault telnet
+complete -F _fzf_complete_ssh -o default -o bashdefault ssh
+complete -F _fzf_complete_telnet -o default -o bashdefault telnet
 
 # Environment variables / Aliases
-complete -F _fzf_env_var_completion -o default -o bashdefault unset
-complete -F _fzf_env_var_completion -o default -o bashdefault export
-complete -F _fzf_alias_completion -o default -o bashdefault unalias
+complete -F _fzf_complete_unset -o default -o bashdefault unset
+complete -F _fzf_complete_export -o default -o bashdefault export
+complete -F _fzf_complete_unalias -o default -o bashdefault unalias
 
-unset cmd d_cmds f_cmds a_cmds x_cmds
+unset cmd d_cmds a_cmds x_cmds

shell/completion.zsh

@@ -10,17 +10,38 @@
 # - $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
+# To use custom commands instead of find, override _fzf_compgen_{path,dir}
+if ! declare -f _fzf_compgen_path > /dev/null; then
+  _fzf_compgen_path() {
+    echo "$1"
+    \find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+if ! declare -f _fzf_compgen_dir > /dev/null; then
+  _fzf_compgen_dir() {
+    \find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o -type d \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+###########################################################
+
+__fzf_generic_path_completion() {
+  local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches nnm
+  # (Q) flag removes a quoting level: "foo\ bar" => "foo bar"
   base=${(Q)1}
   lbuf=$2
-  find_opts=$3
+  compgen=$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
+  if ! setopt | \grep nonomatch > /dev/null; then
     nnm=1
     setopt nonomatch
   fi
@@ -29,9 +50,10 @@ _fzf_path_completion() {
     if [ -z "$dir" -o -d ${~dir} ]; then
       leftover=${base/#"$dir"}
       leftover=${leftover/#\/}
-      [ "$dir" = './' ] && dir=''
+      [ -z "$dir" ] && dir='.'
+      [ "$dir" != "/" ] && dir="${dir/%\//}"
       dir=${~dir}
-      matches=$(\find -L $dir* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
+      matches=$(eval "$compgen $(printf %q "$dir")" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
         printf "%q$suffix " "$item"
       done)
       matches=${matches% }
@@ -47,65 +69,83 @@ _fzf_path_completion() {
   [ -n "$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" \
+_fzf_path_completion() {
+  __fzf_generic_path_completion "$1" "$2" _fzf_compgen_path \
     "-m" "" " "
 }
 
 _fzf_dir_completion() {
-  _fzf_path_completion "$1" "$2" \
-    "-name .git -prune -o -name .svn -prune -o -type d -print" \
+  __fzf_generic_path_completion "$1" "$2" _fzf_compgen_dir \
     "" "/" ""
 }
 
-_fzf_list_completion() {
-  local prefix lbuf fzf_opts src fzf matches
-  prefix=$1
+_fzf_feed_fifo() (
+  rm -f "$1"
+  mkfifo "$1"
+  cat <&0 > "$1" &
+)
+
+_fzf_complete() {
+  local fifo fzf_opts lbuf fzf matches post
+  fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
+  fzf_opts=$1
   lbuf=$2
-  fzf_opts=$3
-  read -r src
+  post="${funcstack[2]}_post"
+  type $post > /dev/null 2>&1 || post=cat
+
   [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
 
-  matches=$(eval "$src" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$prefix")
+  _fzf_feed_fifo "$fifo"
+  matches=$(cat "$fifo" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
   if [ -n "$matches" ]; then
-    LBUFFER="$lbuf$matches "
+    LBUFFER="$lbuf$matches"
   fi
   zle redisplay
+  rm -f "$fifo"
 }
 
-_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 $2}}' | sort -u
-EOF
+_fzf_complete_telnet() {
+  _fzf_complete '+m' "$@" < <(
+    \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' |
+        awk '{if (length($2) > 0) {print $2}}' | sort -u
+  )
 }
 
-_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 $2}}' | sort -u
-EOF
+_fzf_complete_ssh() {
+  _fzf_complete '+m' "$@" < <(
+    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
+  )
 }
 
-_fzf_env_var_completion() {
-  _fzf_list_completion "$1" "$2" '+m' << "EOF"
-  declare -xp | sed 's/=.*//' | sed 's/.* //'
-EOF
+_fzf_complete_export() {
+  _fzf_complete '-m' "$@" < <(
+    declare -xp | sed 's/=.*//' | sed 's/.* //'
+  )
 }
 
-_fzf_alias_completion() {
-  _fzf_list_completion "$1" "$2" '+m' << "EOF"
-  alias | sed 's/=.*//'
-EOF
+_fzf_complete_unset() {
+  _fzf_complete '-m' "$@" < <(
+    declare -xp | sed 's/=.*//' | sed 's/.* //'
+  )
+}
+
+_fzf_complete_unalias() {
+  _fzf_complete '+m' "$@" < <(
+    alias | sed 's/=.*//'
+  )
 }
 
 fzf-completion() {
   local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+  setopt localoptions noshwordsplit
 
   # 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}"
+    zle ${fzf_default_completion:-expand-or-complete}
     return
   fi
 
@@ -126,33 +166,26 @@ fzf-completion() {
     zle redisplay
   # Trigger sequence given
   elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
-    d_cmds=(cd pushd rmdir)
+    d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
 
     [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
     [ -z "${tokens[-1]}" ] && lbuf=$LBUFFER        || lbuf=${LBUFFER:0:-${#tokens[-1]}}
 
-    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" $lbuf
+    if eval "type _fzf_complete_${cmd} > /dev/null"; then
+      eval "prefix=\"$prefix\" _fzf_complete_${cmd} \"$lbuf\""
+    elif [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
+      _fzf_dir_completion "$prefix" "$lbuf"
     else
-      _fzf_all_completion "$prefix" $lbuf
+      _fzf_path_completion "$prefix" "$lbuf"
     fi
   # Fall back to default completion
   else
-    eval "zle ${fzf_default_completion:-expand-or-complete}"
+    zle ${fzf_default_completion:-expand-or-complete}
   fi
 }
 
 [ -z "$fzf_default_completion" ] &&
-  fzf_default_completion=$(bindkey '^I' | grep -v undefined-key | awk '{print $2}')
+  fzf_default_completion=$(bindkey '^I' | \grep -v undefined-key | awk '{print $2}')
 
 zle     -N   fzf-completion
 bindkey '^I' fzf-completion
-

shell/key-bindings.bash

@@ -1,11 +1,11 @@
 # Key bindings
 # ------------
 __fzf_select__() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+  local cmd="${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 "$cmd" | fzf -m | while read item; do
+  eval "$cmd" | fzf -m | while read -r item; do
     printf '%q ' "$item"
   done
   echo
@@ -14,7 +14,7 @@ __fzf_select__() {
 if [[ $- =~ i ]]; then
 
 __fzfcmd() {
-  [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  [ "${FZF_TMUX:-1}" != 0 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
 __fzf_select_tmux__() {
@@ -25,13 +25,23 @@ __fzf_select_tmux__() {
   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__)\"'"
+
+  tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") bash -c 'source \"${BASH_SOURCE[0]}\"; tmux send-keys -t $TMUX_PANE \"\$(__fzf_select__)\"'"
+}
+
+__fzf_select_tmux_auto__() {
+  if [ "${FZF_TMUX:-1}" != 0 ] && [ ${LINES:-40} -gt 15 ]; then
+    __fzf_select_tmux__
+  else
+    tmux send-keys -t "$TMUX_PANE" "$(__fzf_select__)"
+  fi
 }
 
 __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"
+  local cmd dir
+  cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+  dir=$(eval "$cmd" | $(__fzfcmd) +m) && printf 'cd %q' "$dir"
 }
 
 __fzf_history__() (
@@ -39,7 +49,7 @@ __fzf_history__() (
   shopt -u nocaseglob nocasematch
   line=$(
     HISTTIMEFORMAT= history |
-    $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r |
+    $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS |
     \grep '^ *[0-9]') &&
     if [[ $- =~ H ]]; then
       sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
@@ -49,7 +59,11 @@ __fzf_history__() (
 )
 
 __use_tmux=0
-[ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1
+__use_tmux_auto=0
+if [ -n "$TMUX_PANE" ]; then
+  [ "${FZF_TMUX:-1}" != 0 ] && [ ${LINES:-40} -gt 15 ] && __use_tmux=1
+  [ $BASH_VERSINFO -gt 3 ] && __use_tmux_auto=1
+fi
 
 if [ -z "$(set -o | \grep '^vi.*on')" ]; then
   # Required to refresh the prompt after fzf
@@ -57,7 +71,9 @@ if [ -z "$(set -o | \grep '^vi.*on')" ]; then
   bind '"\e^": history-expand-line'
 
   # CTRL-T - Paste the selected file path into the command line
-  if [ $__use_tmux -eq 1 ]; then
+  if [ $__use_tmux_auto -eq 1 ]; then
+    bind -x '"\C-t": "__fzf_select_tmux_auto__"'
+  elif [ $__use_tmux -eq 1 ]; then
     bind '"\C-t": " \C-u \C-a\C-k$(__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$(__fzf_select__)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
@@ -69,28 +85,39 @@ if [ -z "$(set -o | \grep '^vi.*on')" ]; then
   # ALT-C - cd into the selected directory
   bind '"\ec": " \C-e\C-u$(__fzf_cd__)\e\C-e\er\C-m"'
 else
+  # We'd usually use "\e" to enter vi-movement-mode so we can do our magic,
+  # but this incurs a very noticeable delay of a half second or so,
+  # because many other commands start with "\e".
+  # Instead, we bind an unused key, "\C-x\C-a",
+  # to also enter vi-movement-mode,
+  # and then use that thereafter.
+  # (We imagine that "\C-x\C-a" is relatively unlikely to be in use.)
+  bind '"\C-x\C-a": vi-movement-mode'
+
   bind '"\C-x\C-e": shell-expand-line'
   bind '"\C-x\C-r": redraw-current-line'
   bind '"\C-x^": history-expand-line'
 
   # CTRL-T - Paste the selected file path into the command line
   # - FIXME: Selected items are attached to the end regardless of cursor position
-  if [ $__use_tmux -eq 1 ]; then
-    bind '"\C-t": "\e$a \eddi$(__fzf_select_tmux__)\C-x\C-e\e0P$xa"'
+  if [ $__use_tmux_auto -eq 1 ]; then
+    bind -x '"\C-t": "__fzf_select_tmux_auto__"'
+  elif [ $__use_tmux -eq 1 ]; then
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select_tmux__)\C-x\C-e\C-x\C-a0P$xa"'
   else
-    bind '"\C-t": "\e$a \eddi$(__fzf_select__)\C-x\C-e\e0Px$a \C-x\C-r\exa "'
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select__)\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
   fi
   bind -m vi-command '"\C-t": "i\C-t"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\eddi$(__fzf_history__)\C-x\C-e\C-x^\e$a\C-x\C-r"'
+  bind '"\C-r": "\C-x\C-addi$(__fzf_history__)\C-x\C-e\C-x^\C-x\C-a$a\C-x\C-r"'
   bind -m vi-command '"\C-r": "i\C-r"'
 
   # ALT-C - cd into the selected directory
-  bind '"\ec": "\eddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
-  bind -m vi-command '"\ec": "i\ec"'
+  bind '"\ec": "\C-x\C-addi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
+  bind -m vi-command '"\ec": "ddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
 fi
 
-unset __use_tmux
+unset -v __use_tmux __use_tmux_auto
 
 fi

shell/key-bindings.fish

@@ -19,23 +19,26 @@ function fzf_key_bindings
       -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 > $TMPDIR/fzf.result
+    eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)" -m > $TMPDIR/fzf.result"
+    and sleep 0
     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
+    history | eval (__fzfcmd) +s +m --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS > $TMPDIR/fzf.result
     and commandline (cat $TMPDIR/fzf.result)
     commandline -f repaint
     rm -f $TMPDIR/fzf.result
   end
 
   function __fzf_alt_c
+    set -q FZF_ALT_C_COMMAND; or set -l FZF_ALT_C_COMMAND "
+    command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+      -o -type d -print 2> /dev/null | sed 1d | cut -b3-"
     # 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 > $TMPDIR/fzf.result
+    eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)" +m > $TMPDIR/fzf.result"
     [ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
     and cd (cat $TMPDIR/fzf.result)
     commandline -f repaint

shell/key-bindings.zsh

@@ -1,10 +1,10 @@
 # Key bindings
 # ------------
-if [[ $- =~ i ]]; then
+if [[ $- == *i* ]]; then
 
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+  local cmd="${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-"}"
@@ -27,8 +27,9 @@ 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- | $(__fzfcmd) +m):-.}"
+  local cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+  cd "${$(eval "$cmd" | $(__fzfcmd) +m):-.}"
   zle reset-prompt
 }
 zle     -N    fzf-cd-widget
@@ -36,8 +37,9 @@ 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
+  local selected num
+  selected=( $(fc -l 1 | $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r ${=FZF_CTRL_R_OPTS} -q "${LBUFFER//$/\\$}") )
+  if [ -n "$selected" ]; then
     num=$selected[1]
     if [ -n "$num" ]; then
       zle vi-fetch-history -n $num

src/Dockerfile.android

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

src/Dockerfile.arch

@@ -2,6 +2,7 @@ FROM base/archlinux:2014.07.03
 MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # apt-get
+RUN pacman-key --populate archlinux && pacman-key --refresh-keys
 RUN pacman-db-upgrade && pacman -Syu --noconfirm base-devel git
 
 # Install Go 1.4
@@ -9,7 +10,6 @@ RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
 ENV GOROOT /go1.4
 ENV PATH /go1.4/bin:$PATH
 
@@ -19,9 +19,6 @@ RUN echo '[multilib]' >> /etc/pacman.conf && \
     pacman-db-upgrade && yes | pacman -Sy gcc-multilib lib32-ncurses && \
     cd $GOROOT/src && GOARCH=386 ./make.bash
 
-# Volume
-VOLUME /go
-
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/Dockerfile.centos

@@ -1,21 +1,32 @@
-FROM centos:centos7
+FROM centos:centos6
 MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # yum
-RUN yum install -y git gcc make tar ncurses-devel
+RUN yum install -y git gcc make tar glibc-devel glibc-devel.i686 \
+    ncurses-devel ncurses-static ncurses-devel.i686 \
+    gpm-devel gpm-static libgcc.i686
 
 # Install Go 1.4
 RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
-ENV GOROOT /go1.4
-ENV PATH /go1.4/bin:$PATH
+# Install Go 1.5
+RUN cd / && curl \
+    https://storage.googleapis.com/golang/go1.5.3.linux-amd64.tar.gz | \
+    tar -xz && mv go go1.5
 
-# Volume
-VOLUME /go
+# Install RPMs for building static 32-bit binary
+RUN curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.7/os/i386/Packages/ncurses-static-5.7-4.20090207.el6.i686.rpm -o rpm && rpm -i rpm && \
+    curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.7/os/i386/Packages/gpm-static-1.20.6-12.el6.i686.rpm -o rpm && rpm -i rpm
+
+ENV GOROOT_BOOTSTRAP /go1.4
+ENV GOROOT /go1.5
+ENV PATH /go1.5/bin:$PATH
+
+# For i386 build
+RUN cd $GOROOT/src && GOARCH=386 ./make.bash
 
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/Dockerfile.ubuntu

@@ -3,14 +3,13 @@ MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # apt-get
 RUN apt-get update && apt-get -y upgrade && \
-    apt-get install -y --force-yes git curl build-essential libncurses-dev
+    apt-get install -y --force-yes git curl build-essential libncurses-dev libgpm-dev
 
 # Install Go 1.4
 RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
 ENV GOROOT /go1.4
 ENV PATH /go1.4/bin:$PATH
 
@@ -18,9 +17,6 @@ ENV PATH /go1.4/bin:$PATH
 RUN apt-get install -y lib32ncurses5-dev && \
     cd $GOROOT/src && GOARCH=386 ./make.bash
 
-# Volume
-VOLUME /go
-
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/Makefile

@@ -1,40 +1,55 @@
-ifndef GOPATH
-$(error GOPATH is undefined)
-endif
-
+ifndef GOOS
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
 	GOOS := darwin
 else ifeq ($(UNAME_S),Linux)
 	GOOS := linux
 endif
+endif
 
 ifneq ($(shell uname -m),x86_64)
 $(error "Build on $(UNAME_M) is not supported, yet.")
 endif
 
-SOURCES   := $(wildcard *.go */*.go)
-BINDIR    := ../bin
-
-BINARY32  := fzf-$(GOOS)_386
-BINARY64  := fzf-$(GOOS)_amd64
-VERSION    = $(shell fzf/$(BINARY64) --version)
-RELEASE32  = fzf-$(VERSION)-$(GOOS)_386
-RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64
+SOURCES     := $(wildcard *.go */*.go)
+ROOTDIR     := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
+BINDIR      := $(shell dirname $(ROOTDIR))/bin
+GOPATH      := $(shell dirname $(ROOTDIR))/gopath
+SRCDIR      := $(GOPATH)/src/github.com/junegunn/fzf/src
+DOCKEROPTS  := -i -t -v $(ROOTDIR):/fzf/src
+BINARY32    := fzf-$(GOOS)_386
+BINARY64    := fzf-$(GOOS)_amd64
+BINARYARM7  := fzf-$(GOOS)_arm7
+VERSION     := $(shell awk -F= '/version =/ {print $$2}' constants.go | tr -d "\" ")
+RELEASE32   := fzf-$(VERSION)-$(GOOS)_386
+RELEASE64   := fzf-$(VERSION)-$(GOOS)_amd64
+RELEASEARM7 := fzf-$(VERSION)-$(GOOS)_arm7
+export GOPATH
 
 all: release
 
-release: build
-	cd fzf && \
-	cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32) && \
-	cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
-	rm $(RELEASE32) $(RELEASE64)
+release: test build
+	-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
+	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
+	rm -f $(RELEASE32) $(RELEASE64)
 
-build: test fzf/$(BINARY32) fzf/$(BINARY64)
+build: fzf/$(BINARY32) fzf/$(BINARY64)
 
-test:
-	go get
-	go test -v ./...
+$(SRCDIR):
+	mkdir -p $(shell dirname $(SRCDIR))
+	ln -s $(ROOTDIR) $(SRCDIR)
+
+deps: $(SRCDIR) $(SOURCES)
+	cd $(SRCDIR) && go get
+
+android-build: $(SRCDIR)
+	cd $(SRCDIR) && GOARCH=arm GOARM=7 CGO_ENABLED=1 go get
+	cd $(SRCDIR)/fzf && GOARCH=arm GOARM=7 CGO_ENABLED=1 go build -a -ldflags="-extldflags=-pie" -o $(BINARYARM7)
+	cd $(SRCDIR)/fzf && cp $(BINARYARM7) $(RELEASEARM7) && tar -czf $(RELEASEARM7).tgz $(RELEASEARM7) && \
+	rm -f $(RELEASEARM7)
+
+test: deps
+	SHELL=/bin/sh go test -v ./...
 
 install: $(BINDIR)/fzf
 
@@ -42,13 +57,13 @@ uninstall:
 	rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY64)
 
 clean:
-	cd fzf && rm -f $(BINARY32) $(BINARY64) $(RELEASE32).tgz $(RELEASE64).tgz
+	cd fzf && rm -f fzf-*
 
-fzf/$(BINARY32): $(SOURCES)
-	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -o $(BINARY32)
+fzf/$(BINARY32): deps
+	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -tags "$(TAGS)" -o $(BINARY32)
 
-fzf/$(BINARY64): $(SOURCES)
-	cd fzf && go build -o $(BINARY64)
+fzf/$(BINARY64): deps
+	cd fzf && go build -a -tags "$(TAGS)" -o $(BINARY64)
 
 $(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
 	cp -f fzf/$(BINARY64) $(BINDIR)
@@ -57,18 +72,42 @@ $(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
 $(BINDIR):
 	mkdir -p $@
 
-# Linux distribution to build fzf on
-DISTRO := arch
+docker-arch:
+	docker build -t junegunn/arch-sandbox - < Dockerfile.arch
 
-docker:
-	docker build -t junegunn/$(DISTRO)-sandbox - < Dockerfile.$(DISTRO)
+docker-ubuntu:
+	docker build -t junegunn/ubuntu-sandbox - < Dockerfile.ubuntu
 
-linux: docker
-	docker run -i -t -v $(GOPATH):/go junegunn/$(DISTRO)-sandbox \
-		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make'
+docker-centos:
+	docker build -t junegunn/centos-sandbox - < Dockerfile.centos
 
-$(DISTRO): docker
-	docker run -i -t -v $(GOPATH):/go junegunn/$(DISTRO)-sandbox \
-		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
+docker-android:
+	docker build -t junegunn/android-sandbox - < Dockerfile.android
 
-.PHONY: all build release test install uninstall clean docker linux $(DISTRO)
+arch: docker-arch
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
+
+ubuntu: docker-ubuntu
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
+
+centos: docker-centos
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
+
+linux: docker-centos
+	docker run $(DOCKEROPTS) junegunn/centos-sandbox \
+		/bin/bash -ci 'cd /fzf/src; make TAGS=static'
+
+ubuntu-android: docker-android
+	docker run $(DOCKEROPTS) junegunn/android-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
+
+android: docker-android
+	docker run $(DOCKEROPTS) junegunn/android-sandbox \
+		/bin/bash -ci 'cd /fzf/src; GOOS=android make android-build'
+
+.PHONY: all build deps release test install uninstall clean \
+	linux arch ubuntu centos docker-arch docker-ubuntu docker-centos \
+	android-build docker-android ubuntu-android android

src/algo/algo.go

@@ -15,10 +15,37 @@ import (
  * In short: They try to do as little work as possible.
  */
 
+func runeAt(runes []rune, index int, max int, forward bool) rune {
+	if forward {
+		return runes[index]
+	}
+	return runes[max-index-1]
+}
+
+// Result conatins the results of running a match function.
+type Result struct {
+	Start int32
+	End   int32
+
+	// Items are basically sorted by the lengths of matched substrings.
+	// But we slightly adjust the score with bonus for better results.
+	Bonus int32
+}
+
+type charClass int
+
+const (
+	charNonWord charClass = iota
+	charLower
+	charUpper
+	charLetter
+	charNumber
+)
+
 // FuzzyMatch performs fuzzy-match
-func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
 	if len(pattern) == 0 {
-		return 0, 0
+		return Result{0, 0, 0}
 	}
 
 	// 0. (FIXME) How to find the shortest match?
@@ -34,7 +61,11 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	sidx := -1
 	eidx := -1
 
-	for index, char := range runes {
+	lenRunes := len(runes)
+	lenPattern := len(pattern)
+
+	for index := range runes {
+		char := runeAt(runes, index, lenRunes, forward)
 		// This is considerably faster than blindly applying strings.ToLower to the
 		// whole string
 		if !caseSensitive {
@@ -47,11 +78,12 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
-		if char == pattern[pidx] {
+		pchar := runeAt(pattern, pidx, lenPattern, forward)
+		if char == pchar {
 			if sidx < 0 {
 				sidx = index
 			}
-			if pidx++; pidx == len(pattern) {
+			if pidx++; pidx == lenPattern {
 				eidx = index + 1
 				break
 			}
@@ -61,7 +93,7 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	if sidx >= 0 && eidx >= 0 {
 		pidx--
 		for index := eidx - 1; index >= sidx; index-- {
-			char := runes[index]
+			char := runeAt(runes, index, lenRunes, forward)
 			if !caseSensitive {
 				if char >= 'A' && char <= 'Z' {
 					char += 32
@@ -69,16 +101,85 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 					char = unicode.To(unicode.LowerCase, char)
 				}
 			}
-			if char == pattern[pidx] {
+
+			pchar := runeAt(pattern, pidx, lenPattern, forward)
+			if char == pchar {
 				if pidx--; pidx < 0 {
 					sidx = index
 					break
 				}
 			}
 		}
-		return sidx, eidx
+
+		// Calculate the bonus. This can't be done at the same time as the
+		// pattern scan above because 'forward' may be false.
+		if !forward {
+			sidx, eidx = lenRunes-eidx, lenRunes-sidx
+		}
+
+		var bonus int32
+		pidx := 0
+		consecutive := false
+		prevClass := charNonWord
+		for index := 0; index < eidx; index++ {
+			char := runes[index]
+			var class charClass
+			if unicode.IsLower(char) {
+				class = charLower
+			} else if unicode.IsUpper(char) {
+				class = charUpper
+			} else if unicode.IsLetter(char) {
+				class = charLetter
+			} else if unicode.IsNumber(char) {
+				class = charNumber
+			} else {
+				class = charNonWord
+			}
+
+			var point int32
+			if prevClass == charNonWord && class != charNonWord {
+				// Word boundary
+				point = 2
+			} else if prevClass == charLower && class == charUpper ||
+				prevClass != charNumber && class == charNumber {
+				// camelCase letter123
+				point = 1
+			}
+			prevClass = class
+
+			if index >= sidx {
+				if !caseSensitive {
+					if char >= 'A' && char <= 'Z' {
+						char += 32
+					} else if char > unicode.MaxASCII {
+						char = unicode.To(unicode.LowerCase, char)
+					}
+				}
+				pchar := pattern[pidx]
+				if pchar == char {
+					// Boost bonus for the first character in the pattern
+					if pidx == 0 {
+						point *= 2
+					}
+					// Bonus to consecutive matching chars
+					if consecutive {
+						point++
+					}
+					bonus += point
+
+					if pidx++; pidx == lenPattern {
+						break
+					}
+					consecutive = true
+				} else {
+					consecutive = false
+				}
+			}
+		}
+
+		return Result{int32(sidx), int32(eidx), bonus}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }
 
 // ExactMatchNaive is a basic string searching algorithm that handles case
@@ -88,20 +189,22 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 //
 // We might try to implement better algorithms in the future:
 // http://en.wikipedia.org/wiki/String_searching_algorithm
-func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func ExactMatchNaive(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
+	// Note: ExactMatchNaive always return a zero bonus.
 	if len(pattern) == 0 {
-		return 0, 0
+		return Result{0, 0, 0}
 	}
 
-	numRunes := len(runes)
-	plen := len(pattern)
-	if numRunes < plen {
-		return -1, -1
+	lenRunes := len(runes)
+	lenPattern := len(pattern)
+
+	if lenRunes < lenPattern {
+		return Result{-1, -1, 0}
 	}
 
 	pidx := 0
-	for index := 0; index < numRunes; index++ {
-		char := runes[index]
+	for index := 0; index < lenRunes; index++ {
+		char := runeAt(runes, index, lenRunes, forward)
 		if !caseSensitive {
 			if char >= 'A' && char <= 'Z' {
 				char += 32
@@ -109,23 +212,28 @@ func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
-		if pattern[pidx] == char {
+		pchar := runeAt(pattern, pidx, lenPattern, forward)
+		if pchar == char {
 			pidx++
-			if pidx == plen {
-				return index - plen + 1, index + 1
+			if pidx == lenPattern {
+				if forward {
+					return Result{int32(index - lenPattern + 1), int32(index + 1), 0}
+				}
+				return Result{int32(lenRunes - (index + 1)), int32(lenRunes - (index - lenPattern + 1)), 0}
 			}
 		} else {
 			index -= pidx
 			pidx = 0
 		}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
+	// Note: PrefixMatch always return a zero bonus.
 	if len(runes) < len(pattern) {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 
 	for index, r := range pattern {
@@ -134,19 +242,20 @@ func PrefixMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 			char = unicode.ToLower(char)
 		}
 		if char != r {
-			return -1, -1
+			return Result{-1, -1, 0}
 		}
 	}
-	return 0, len(pattern)
+	return Result{0, int32(len(pattern)), 0}
 }
 
 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, input []rune, pattern []rune) (int, int) {
+func SuffixMatch(caseSensitive bool, forward bool, input []rune, pattern []rune) Result {
+	// Note: SuffixMatch always return a zero bonus.
 	runes := util.TrimRight(input)
 	trimmedLen := len(runes)
 	diff := trimmedLen - len(pattern)
 	if diff < 0 {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 
 	for index, r := range pattern {
@@ -155,23 +264,24 @@ func SuffixMatch(caseSensitive bool, input []rune, pattern []rune) (int, int) {
 			char = unicode.ToLower(char)
 		}
 		if char != r {
-			return -1, -1
+			return Result{-1, -1, 0}
 		}
 	}
-	return trimmedLen - len(pattern), trimmedLen
+	return Result{int32(trimmedLen - len(pattern)), int32(trimmedLen), 0}
 }
 
 // EqualMatch performs equal-match
-func EqualMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func EqualMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
+	// Note: EqualMatch always return a zero bonus.
 	if len(runes) != len(pattern) {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 	runesStr := string(runes)
 	if !caseSensitive {
 		runesStr = strings.ToLower(runesStr)
 	}
 	if runesStr == string(pattern) {
-		return 0, len(pattern)
+		return Result{0, int32(len(pattern)), 0}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }

src/algo/algo_test.go

@@ -5,47 +5,84 @@ import (
 	"testing"
 )
 
-func assertMatch(t *testing.T, fun func(bool, []rune, []rune) (int, int), caseSensitive bool, input string, pattern string, sidx int, eidx int) {
+func assertMatch(t *testing.T, fun func(bool, bool, []rune, []rune) Result, caseSensitive, forward bool, input, pattern string, sidx int32, eidx int32, bonus int32) {
 	if !caseSensitive {
 		pattern = strings.ToLower(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)
+	res := fun(caseSensitive, forward, []rune(input), []rune(pattern))
+	if res.Start != sidx {
+		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", res.Start, sidx, input, pattern)
 	}
-	if e != eidx {
-		t.Errorf("Invalid end index: %d (expected: %d, %s / %s)", e, eidx, input, pattern)
+	if res.End != eidx {
+		t.Errorf("Invalid end index: %d (expected: %d, %s / %s)", res.End, eidx, input, pattern)
+	}
+	if res.Bonus != bonus {
+		t.Errorf("Invalid bonus: %d (expected: %d, %s / %s)", res.Bonus, bonus, input, pattern)
 	}
 }
 
 func TestFuzzyMatch(t *testing.T) {
-	assertMatch(t, FuzzyMatch, false, "fooBarbaz", "oBZ", 2, 9)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "oBZ", -1, -1)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "oBz", 2, 9)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9, 2)
+	assertMatch(t, FuzzyMatch, false, true, "foo bar baz", "fbb", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, false, true, "/AutomatorDocument.icns", "rdoc", 9, 13, 4)
+	assertMatch(t, FuzzyMatch, false, true, "/man1/zshcompctl.1", "zshc", 6, 10, 7)
+	assertMatch(t, FuzzyMatch, false, true, "/.oh-my-zsh/cache", "zshc", 8, 13, 8)
+	assertMatch(t, FuzzyMatch, false, true, "ab0123 456", "12356", 3, 10, 3)
+	assertMatch(t, FuzzyMatch, false, true, "abc123 456", "12356", 3, 10, 5)
+
+	assertMatch(t, FuzzyMatch, false, true, "foo/bar/baz", "fbb", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarBaz", "fbb", 0, 7, 6)
+	assertMatch(t, FuzzyMatch, false, true, "foo barbaz", "fbb", 0, 8, 6)
+	assertMatch(t, FuzzyMatch, false, true, "fooBar Baz", "foob", 0, 4, 8)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1, 0)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9, 2)
+	assertMatch(t, FuzzyMatch, true, true, "Foo Bar Baz", "fbb", -1, -1, 0)
+	assertMatch(t, FuzzyMatch, true, true, "Foo/Bar/Baz", "FBB", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, true, true, "FooBarBaz", "FBB", 0, 7, 6)
+	assertMatch(t, FuzzyMatch, true, true, "foo BarBaz", "fBB", 0, 8, 7)
+	assertMatch(t, FuzzyMatch, true, true, "FooBar Baz", "FooB", 0, 4, 8)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1, 0)
+}
+
+func TestFuzzyMatchBackward(t *testing.T) {
+	assertMatch(t, FuzzyMatch, false, true, "foobar fb", "fb", 0, 4, 4)
+	assertMatch(t, FuzzyMatch, false, false, "foobar fb", "fb", 7, 9, 5)
 }
 
 func TestExactMatchNaive(t *testing.T) {
-	assertMatch(t, ExactMatchNaive, false, "fooBarbaz", "oBA", 2, 5)
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "oBA", -1, -1)
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1, 0)
+	}
+}
+
+func TestExactMatchNaiveBackward(t *testing.T) {
+	assertMatch(t, ExactMatchNaive, false, true, "foobar foob", "oo", 1, 3, 0)
+	assertMatch(t, ExactMatchNaive, false, false, "foobar foob", "oo", 8, 10, 0)
 }
 
 func TestPrefixMatch(t *testing.T) {
-	assertMatch(t, PrefixMatch, false, "fooBarbaz", "Foo", 0, 3)
-	assertMatch(t, PrefixMatch, true, "fooBarbaz", "Foo", -1, -1)
-	assertMatch(t, PrefixMatch, false, "fooBarbaz", "baz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3, 0)
+		assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1, 0)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "baz", -1, -1, 0)
+	}
 }
 
 func TestSuffixMatch(t *testing.T) {
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "Foo", -1, -1)
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "baz", 6, 9)
-	assertMatch(t, SuffixMatch, true, "fooBarbaz", "Baz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1, 0)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9, 0)
+		assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1, 0)
+	}
 }
 
 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)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6, 0)
+	}
 }

src/chunklist_test.go

@@ -6,8 +6,11 @@ import (
 )
 
 func TestChunkList(t *testing.T) {
+	// FIXME global
+	sortCriteria = []criterion{byMatchLen, byLength}
+
 	cl := NewChunkList(func(s []byte, i int) *Item {
-		return &Item{text: []rune(string(s)), rank: Rank{0, 0, uint32(i * 2)}}
+		return &Item{text: []rune(string(s)), rank: buildEmptyRank(int32(i * 2))}
 	})
 
 	// Snapshot
@@ -36,8 +39,11 @@ func TestChunkList(t *testing.T) {
 	if len(*chunk1) != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if string((*chunk1)[0].text) != "hello" || (*chunk1)[0].rank.index != 0 ||
-		string((*chunk1)[1].text) != "world" || (*chunk1)[1].rank.index != 2 {
+	last := func(arr [5]int32) int32 {
+		return arr[len(arr)-1]
+	}
+	if string((*chunk1)[0].text) != "hello" || last((*chunk1)[0].rank) != 0 ||
+		string((*chunk1)[1].text) != "world" || last((*chunk1)[1].rank) != 2 {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {

src/constants.go

@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.10.3"
+	version = "0.12.0"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
@@ -18,7 +18,8 @@ const (
 	defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
 
 	// Terminal
-	initialDelay    = 100 * time.Millisecond
+	initialDelay    = 20 * time.Millisecond
+	initialDelayTac = 100 * time.Millisecond
 	spinnerDuration = 200 * time.Millisecond
 
 	// Matcher
@@ -47,3 +48,10 @@ const (
 	EvtHeader
 	EvtClose
 )
+
+const (
+	exitOk        = 0
+	exitNoMatch   = 1
+	exitError     = 2
+	exitInterrupt = 130
+)

src/core.go

@@ -3,7 +3,7 @@ Package fzf implements fzf, a command-line fuzzy finder.
 
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 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
@@ -52,11 +52,11 @@ func Run(opts *Options) {
 	initProcs()
 
 	sort := opts.Sort > 0
-	rankTiebreak = opts.Tiebreak
+	sortCriteria = opts.Criteria
 
 	if opts.Version {
 		fmt.Println(version)
-		os.Exit(0)
+		os.Exit(exitOk)
 	}
 
 	// Event channel
@@ -103,9 +103,8 @@ func Run(opts *Options) {
 			runes, colors := ansiProcessor(data)
 			return &Item{
 				text:   runes,
-				index:  uint32(index),
 				colors: colors,
-				rank:   Rank{0, 0, uint32(index)}}
+				rank:   buildEmptyRank(int32(index))}
 		})
 	} else {
 		chunkList = NewChunkList(func(data []byte, index int) *Item {
@@ -120,9 +119,8 @@ func Run(opts *Options) {
 			item := Item{
 				text:     joinTokens(trans),
 				origText: &runes,
-				index:    uint32(index),
 				colors:   nil,
-				rank:     Rank{0, 0, uint32(index)}}
+				rank:     buildEmptyRank(int32(index))}
 
 			trimmed, colors := ansiProcessorRunes(item.text)
 			item.text = trimmed
@@ -141,9 +139,20 @@ func Run(opts *Options) {
 	}
 
 	// Matcher
+	forward := true
+	for _, cri := range opts.Criteria[1:] {
+		if cri == byEnd {
+			forward = false
+			break
+		}
+		if cri == byBegin {
+			break
+		}
+	}
 	patternBuilder := func(runes []rune) *Pattern {
 		return BuildPattern(
-			opts.Mode, opts.Case, opts.Nth, opts.Delimiter, runes)
+			opts.Fuzzy, opts.Extended, opts.Case, forward,
+			opts.Nth, opts.Delimiter, runes)
 	}
 	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
 
@@ -155,12 +164,14 @@ func Run(opts *Options) {
 
 		pattern := patternBuilder([]rune(*opts.Filter))
 
+		found := false
 		if streamingFilter {
 			reader := Reader{
 				func(runes []byte) bool {
 					item := chunkList.trans(runes, 0)
 					if item != nil && pattern.MatchItem(item) {
 						fmt.Println(string(item.text))
+						found = true
 					}
 					return false
 				}, eventBox, opts.ReadZero}
@@ -174,10 +185,14 @@ func Run(opts *Options) {
 				chunks:  snapshot,
 				pattern: pattern})
 			for i := 0; i < merger.Length(); i++ {
-				fmt.Println(merger.Get(i).AsString())
+				fmt.Println(merger.Get(i).AsString(opts.Ansi))
+				found = true
 			}
 		}
-		os.Exit(0)
+		if found {
+			os.Exit(exitOk)
+		}
+		os.Exit(exitNoMatch)
 	}
 
 	// Synchronous search
@@ -231,7 +246,7 @@ func Run(opts *Options) {
 					}
 
 				case EvtHeader:
-					terminal.UpdateHeader(value.([]string), opts.HeaderLines)
+					terminal.UpdateHeader(value.([]string))
 
 				case EvtSearchFin:
 					switch val := value.(type) {
@@ -250,9 +265,12 @@ func Run(opts *Options) {
 										fmt.Println()
 									}
 									for i := 0; i < count; i++ {
-										fmt.Println(val.Get(i).AsString())
+										fmt.Println(val.Get(i).AsString(opts.Ansi))
 									}
-									os.Exit(0)
+									if count > 0 {
+										os.Exit(exitOk)
+									}
+									os.Exit(exitNoMatch)
 								}
 								deferred = false
 								terminal.startChan <- true

src/curses/curses.go

@@ -3,14 +3,21 @@ package curses
 /*
 #include <ncurses.h>
 #include <locale.h>
-#cgo LDFLAGS: -lncurses
+#cgo !static LDFLAGS: -lncurses
+#cgo static LDFLAGS: -l:libncursesw.a -l:libtinfo.a -l:libgpm.a -ldl
+#cgo android static LDFLAGS: -l:libncurses.a -fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch
+
+SCREEN *c_newterm () {
+	return newterm(NULL, stderr, stdin);
+}
+
 */
 import "C"
 
 import (
 	"fmt"
 	"os"
-	"os/signal"
+	"strings"
 	"syscall"
 	"time"
 	"unicode/utf8"
@@ -50,6 +57,7 @@ const (
 
 	Invalid
 	Mouse
+	DoubleClick
 
 	BTab
 	BSpace
@@ -258,10 +266,10 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 	}
 
 	C.setlocale(C.LC_ALL, C.CString(""))
-	_screen = C.newterm(nil, C.stderr, C.stdin)
+	_screen = C.c_newterm()
 	if _screen == nil {
 		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
-		os.Exit(1)
+		os.Exit(2)
 	}
 	C.set_term(_screen)
 	if mouse {
@@ -270,14 +278,6 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 	C.noecho()
 	C.raw() // stty dsusp undef
 
-	intChan := make(chan os.Signal, 1)
-	signal.Notify(intChan, os.Interrupt, os.Kill)
-	go func() {
-		<-intChan
-		Close()
-		os.Exit(1)
-	}()
-
 	if theme != nil {
 		C.start_color()
 		initPairs(theme, black)
@@ -521,7 +521,12 @@ func MoveAndClear(y int, x int) {
 }
 
 func Print(text string) {
-	C.addstr(C.CString(text))
+	C.addstr(C.CString(strings.Map(func(r rune) rune {
+		if r < 32 {
+			return -1
+		}
+		return r
+	}, text)))
 }
 
 func CPrint(pair int, bold bool, text string) {

src/item.go

@@ -6,8 +6,8 @@ import (
 	"github.com/junegunn/fzf/src/curses"
 )
 
-// Offset holds two 32-bit integers denoting the offsets of a matched substring
-type Offset [2]int32
+// Offset holds three 32-bit integers denoting the offsets of a matched substring
+type Offset [3]int32
 
 type colorOffset struct {
 	offset [2]int32
@@ -20,33 +20,47 @@ type Item struct {
 	text        []rune
 	origText    *[]rune
 	transformed []Token
-	index       uint32
 	offsets     []Offset
 	colors      []ansiOffset
-	rank        Rank
+	rank        [5]int32
+	bonus       int32
 }
 
-// Rank is used to sort the search result
-type Rank struct {
-	matchlen uint16
-	tiebreak uint16
-	index    uint32
+// Sort criteria to use. Never changes once fzf is started.
+var sortCriteria []criterion
+
+func isRankValid(rank [5]int32) bool {
+	// Exclude ordinal index
+	for _, r := range rank[:4] {
+		if r > 0 {
+			return true
+		}
+	}
+	return false
 }
 
-// Tiebreak criterion to use. Never changes once fzf is started.
-var rankTiebreak tiebreak
+func buildEmptyRank(index int32) [5]int32 {
+	return [5]int32{0, 0, 0, 0, index}
+}
+
+func (item *Item) Index() int32 {
+	return item.rank[4]
+}
 
 // Rank calculates rank of the Item
-func (item *Item) Rank(cache bool) Rank {
-	if cache && (item.rank.matchlen > 0 || item.rank.tiebreak > 0) {
+func (item *Item) Rank(cache bool) [5]int32 {
+	if cache && isRankValid(item.rank) {
 		return item.rank
 	}
 	matchlen := 0
 	prevEnd := 0
-	minBegin := math.MaxUint16
+	lenSum := 0
+	minBegin := math.MaxInt32
 	for _, offset := range item.offsets {
 		begin := int(offset[0])
 		end := int(offset[1])
+		trimLen := int(offset[2])
+		lenSum += trimLen
 		if prevEnd > begin {
 			begin = prevEnd
 		}
@@ -60,33 +74,45 @@ func (item *Item) Rank(cache bool) Rank {
 			matchlen += end - begin
 		}
 	}
-	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)
+	rank := buildEmptyRank(item.Index())
+	for idx, criterion := range sortCriteria {
+		var val int32
+		switch criterion {
+		case byMatchLen:
+			if matchlen == 0 {
+				val = math.MaxInt32
+			} else {
+				// It is extremely unlikely that bonus exceeds 128
+				val = 128*int32(matchlen) - item.bonus
+			}
+		case byLength:
+			// It is guaranteed that .transformed in not null in normal execution
+			if item.transformed != nil {
+				// If offsets is empty, lenSum will be 0, but we don't care
+				val = int32(lenSum)
+			} else {
+				val = int32(len(item.text))
+			}
+		case byBegin:
+			// We can't just look at item.offsets[0][0] because it can be an inverse term
+			whitePrefixLen := 0
+			for idx, r := range item.text {
+				whitePrefixLen = idx
+				if idx == minBegin || r != ' ' && r != '\t' {
+					break
+				}
+			}
+			val = int32(minBegin - whitePrefixLen)
+		case byEnd:
+			if prevEnd > 0 {
+				val = int32(1 + len(item.text) - prevEnd)
+			} else {
+				// Empty offsets due to inverse terms.
+				val = 1
 			}
-			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[idx] = val
 	}
-	rank := Rank{uint16(matchlen), tiebreak, item.index}
 	if cache {
 		item.rank = rank
 	}
@@ -94,17 +120,21 @@ func (item *Item) Rank(cache bool) Rank {
 }
 
 // AsString returns the original string
-func (item *Item) AsString() string {
-	return *item.StringPtr()
+func (item *Item) AsString(stripAnsi bool) string {
+	return *item.StringPtr(stripAnsi)
 }
 
 // StringPtr returns the pointer to the original string
-func (item *Item) StringPtr() *string {
-	runes := item.text
+func (item *Item) StringPtr(stripAnsi bool) *string {
 	if item.origText != nil {
-		runes = *item.origText
+		if stripAnsi {
+			trimmed, _, _ := extractColor(string(*item.origText), nil)
+			return &trimmed
+		}
+		orig := string(*item.origText)
+		return &orig
 	}
-	str := string(runes)
+	str := string(item.text)
 	return &str
 }
 
@@ -112,7 +142,8 @@ 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})
+
+			offsets = append(offsets, colorOffset{offset: [2]int32{off[0], off[1]}, color: color, bold: bold})
 		}
 		return offsets
 	}
@@ -156,7 +187,7 @@ func (item *Item) colorOffsets(color int, bold bool, current bool) []colorOffset
 		if curr != 0 && idx > start {
 			if curr == -1 {
 				offsets = append(offsets, colorOffset{
-					offset: Offset{int32(start), int32(idx)}, color: color, bold: bold})
+					offset: [2]int32{int32(start), int32(idx)}, color: color, bold: bold})
 			} else {
 				ansi := item.colors[curr-1]
 				fg := ansi.color.fg
@@ -176,7 +207,7 @@ func (item *Item) colorOffsets(color int, bold bool, current bool) []colorOffset
 					}
 				}
 				offsets = append(offsets, colorOffset{
-					offset: Offset{int32(start), int32(idx)},
+					offset: [2]int32{int32(start), int32(idx)},
 					color:  curses.PairFor(fg, bg),
 					bold:   ansi.color.bold || bold})
 			}
@@ -246,18 +277,15 @@ func (a ByRelevanceTac) Less(i, j int) bool {
 	return compareRanks(irank, jrank, true)
 }
 
-func compareRanks(irank Rank, jrank Rank, tac bool) bool {
-	if irank.matchlen < jrank.matchlen {
-		return true
-	} else if irank.matchlen > jrank.matchlen {
-		return false
+func compareRanks(irank [5]int32, jrank [5]int32, tac bool) bool {
+	for idx := 0; idx < 4; idx++ {
+		left := irank[idx]
+		right := jrank[idx]
+		if left < right {
+			return true
+		} else if left > right {
+			return false
+		}
 	}
-
-	if irank.tiebreak < jrank.tiebreak {
-		return true
-	} else if irank.tiebreak > jrank.tiebreak {
-		return false
-	}
-
-	return (irank.index <= jrank.index) != tac
+	return (irank[4] <= jrank[4]) != tac
 }

src/item_test.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"math"
 	"sort"
 	"testing"
 
@@ -22,31 +23,34 @@ func TestOffsetSort(t *testing.T) {
 }
 
 func TestRankComparison(t *testing.T) {
-	if compareRanks(Rank{3, 0, 5}, Rank{2, 0, 7}, false) ||
-		!compareRanks(Rank{3, 0, 5}, Rank{3, 0, 6}, false) ||
-		!compareRanks(Rank{1, 2, 3}, Rank{1, 3, 2}, false) ||
-		!compareRanks(Rank{0, 0, 0}, Rank{0, 0, 0}, false) {
+	if compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{2, 0, 0, 0, 7}, false) ||
+		!compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{3, 0, 0, 0, 6}, false) ||
+		!compareRanks([5]int32{1, 2, 0, 0, 3}, [5]int32{1, 3, 0, 0, 2}, false) ||
+		!compareRanks([5]int32{0, 0, 0, 0, 0}, [5]int32{0, 0, 0, 0, 0}, false) {
 		t.Error("Invalid order")
 	}
 
-	if compareRanks(Rank{3, 0, 5}, Rank{2, 0, 7}, true) ||
-		!compareRanks(Rank{3, 0, 5}, Rank{3, 0, 6}, false) ||
-		!compareRanks(Rank{1, 2, 3}, Rank{1, 3, 2}, true) ||
-		!compareRanks(Rank{0, 0, 0}, Rank{0, 0, 0}, false) {
+	if compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{2, 0, 0, 0, 7}, true) ||
+		!compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{3, 0, 0, 0, 6}, false) ||
+		!compareRanks([5]int32{1, 2, 0, 0, 3}, [5]int32{1, 3, 0, 0, 2}, true) ||
+		!compareRanks([5]int32{0, 0, 0, 0, 0}, [5]int32{0, 0, 0, 0, 0}, false) {
 		t.Error("Invalid order (tac)")
 	}
 }
 
 // Match length, string length, index
 func TestItemRank(t *testing.T) {
+	// FIXME global
+	sortCriteria = []criterion{byMatchLen, byLength}
+
 	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
-	item1 := Item{text: strs[0], index: 1, offsets: []Offset{}}
+	item1 := Item{text: strs[0], offsets: []Offset{}, rank: [5]int32{0, 0, 0, 0, 1}}
 	rank1 := item1.Rank(true)
-	if rank1.matchlen != 0 || rank1.tiebreak != 3 || rank1.index != 1 {
+	if rank1[0] != math.MaxInt32 || rank1[1] != 3 || rank1[4] != 1 {
 		t.Error(item1.Rank(true))
 	}
 	// Only differ in index
-	item2 := Item{text: strs[0], index: 0, offsets: []Offset{}}
+	item2 := Item{text: strs[0], offsets: []Offset{}}
 
 	items := []*Item{&item1, &item2}
 	sort.Sort(ByRelevance(items))
@@ -62,15 +66,15 @@ 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: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item4 := Item{text: strs[1], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
+	item5 := Item{text: strs[2], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item6 := Item{text: strs[2], rank: [5]int32{0, 0, 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 ||
-		items[2] != &item6 || items[3] != &item4 ||
-		items[4] != &item5 || items[5] != &item3 {
+	if items[0] != &item6 || items[1] != &item4 ||
+		items[2] != &item5 || items[3] != &item3 ||
+		items[4] != &item2 || items[5] != &item1 {
 		t.Error(items)
 	}
 }

src/matcher.go

@@ -200,7 +200,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 	}
 
 	partialResults := make([][]*Item, numSlices)
-	for range slices {
+	for _, _ = range slices {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}

src/merger.go

@@ -88,7 +88,7 @@ func (mg *Merger) cacheable() bool {
 
 func (mg *Merger) mergedGet(idx int) *Item {
 	for i := len(mg.merged); i <= idx; i++ {
-		minRank := Rank{0, 0, 0}
+		minRank := buildEmptyRank(0)
 		minIdx := -1
 		for listIdx, list := range mg.lists {
 			cursor := mg.cursors[listIdx]

src/merger_test.go

@@ -23,7 +23,7 @@ func randItem() *Item {
 	}
 	return &Item{
 		text:    []rune(str),
-		index:   rand.Uint32(),
+		rank:    buildEmptyRank(rand.Int31()),
 		offsets: offsets}
 }
 

src/options.go

@@ -1,7 +1,6 @@
 package fzf
 
 import (
-	"io/ioutil"
 	"os"
 	"regexp"
 	"strconv"
@@ -17,17 +16,19 @@ const usage = `usage: fzf [options]
 
   Search
     -x, --extended        Extended-search mode
-    -e, --extended-exact  Extended-search mode (exact match)
+                          (enabled by default; +x or --no-extended to disable)
+    -e, --exact           Enable 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])
+                          integer or a range expression ([BEGIN]..[END]).
     --with-nth=N[,..]     Transform item using index expressions within finder
     -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
     +s, --no-sort         Do not sort the result
     --tac                 Reverse the order of the input
-    --tiebreak=CRITERION  Sort criterion when the scores are tied;
+    --tiebreak=CRI[,..]   Comma-separated list of sort criteria to apply
+                          when the scores are tied;
                           [length|begin|end|index] (default: length)
 
   Interface
@@ -38,14 +39,17 @@ const usage = `usage: fzf [options]
     --black               Use black background
     --reverse             Reverse orientation
     --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
+    --tabstop=SPACES      Number of spaces for a tab character (default: 8)
     --cycle               Enable cyclic scroll
     --no-hscroll          Disable horizontal scroll
+    --hscroll-off=COL     Number of screen columns to keep to the right of the
+                          highlighted substring (default: 10)
     --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=STR          String to print as header
     --header-lines=N      The first N lines of the input are treated as header
 
   Scripting
@@ -59,20 +63,10 @@ const usage = `usage: fzf [options]
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Defaults options. (e.g. '-x -m')
+    FZF_DEFAULT_OPTS      Default options (e.g. '--reverse --inline-info')
 
 `
 
-// Mode denotes the current search mode
-type Mode int
-
-// Search modes
-const (
-	ModeFuzzy Mode = iota
-	ModeExtended
-	ModeExtendedExact
-)
-
 // Case denotes case-sensitivity of search
 type Case int
 
@@ -84,13 +78,13 @@ const (
 )
 
 // Sort criteria
-type tiebreak int
+type criterion int
 
 const (
-	byLength tiebreak = iota
+	byMatchLen criterion = iota
+	byLength
 	byBegin
 	byEnd
-	byIndex
 )
 
 func defaultMargin() [4]string {
@@ -99,14 +93,15 @@ func defaultMargin() [4]string {
 
 // Options stores the values of command-line options
 type Options struct {
-	Mode        Mode
+	Fuzzy       bool
+	Extended    bool
 	Case        Case
 	Nth         []Range
 	WithNth     []Range
 	Delimiter   Delimiter
 	Sort        int
 	Tac         bool
-	Tiebreak    tiebreak
+	Criteria    []criterion
 	Multi       bool
 	Ansi        bool
 	Mouse       bool
@@ -115,6 +110,7 @@ type Options struct {
 	Reverse     bool
 	Cycle       bool
 	Hscroll     bool
+	HscrollOff  int
 	InlineInfo  bool
 	Prompt      string
 	Query       string
@@ -132,6 +128,7 @@ type Options struct {
 	Header      []string
 	HeaderLines int
 	Margin      [4]string
+	Tabstop     int
 	Version     bool
 }
 
@@ -144,14 +141,15 @@ func defaultTheme() *curses.ColorTheme {
 
 func defaultOptions() *Options {
 	return &Options{
-		Mode:        ModeFuzzy,
+		Fuzzy:       true,
+		Extended:    true,
 		Case:        CaseSmart,
 		Nth:         make([]Range, 0),
 		WithNth:     make([]Range, 0),
 		Delimiter:   Delimiter{},
 		Sort:        1000,
 		Tac:         false,
-		Tiebreak:    byLength,
+		Criteria:    []criterion{byMatchLen, byLength},
 		Multi:       false,
 		Ansi:        false,
 		Mouse:       true,
@@ -160,6 +158,7 @@ func defaultOptions() *Options {
 		Reverse:     false,
 		Cycle:       false,
 		Hscroll:     true,
+		HscrollOff:  10,
 		InlineInfo:  false,
 		Prompt:      "> ",
 		Query:       "",
@@ -168,7 +167,7 @@ func defaultOptions() *Options {
 		Filter:      nil,
 		ToggleSort:  false,
 		Expect:      make(map[int]string),
-		Keymap:      defaultKeymap(),
+		Keymap:      make(map[int]actionType),
 		Execmap:     make(map[int]string),
 		PrintQuery:  false,
 		ReadZero:    false,
@@ -177,17 +176,18 @@ func defaultOptions() *Options {
 		Header:      make([]string, 0),
 		HeaderLines: 0,
 		Margin:      defaultMargin(),
+		Tabstop:     8,
 		Version:     false}
 }
 
-func help(ok int) {
+func help(code int) {
 	os.Stderr.WriteString(usage)
-	os.Exit(ok)
+	os.Exit(code)
 }
 
 func errorExit(msg string) {
 	os.Stderr.WriteString(msg + "\n")
-	os.Exit(1)
+	os.Exit(exitError)
 }
 
 func optString(arg string, prefixes ...string) (bool, string) {
@@ -344,6 +344,8 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = curses.SLeft
 		case "shift-right":
 			chord = curses.SRight
+		case "double-click":
+			chord = curses.DoubleClick
 		default:
 			if len(key) == 6 && strings.HasPrefix(lkey, "ctrl-") && isAlphabet(lkey[5]) {
 				chord = curses.CtrlA + int(lkey[5]) - 'a'
@@ -364,25 +366,47 @@ func parseKeyChords(str string, message string) map[int]string {
 	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)
+func parseTiebreak(str string) []criterion {
+	criteria := []criterion{byMatchLen}
+	hasIndex := false
+	hasLength := false
+	hasBegin := false
+	hasEnd := false
+	check := func(notExpected *bool, name string) {
+		if *notExpected {
+			errorExit("duplicate sort criteria: " + name)
+		}
+		if hasIndex {
+			errorExit("index should be the last criterion")
+		}
+		*notExpected = true
 	}
-	return byLength
+	for _, str := range strings.Split(strings.ToLower(str), ",") {
+		switch str {
+		case "index":
+			check(&hasIndex, "index")
+		case "length":
+			check(&hasLength, "length")
+			criteria = append(criteria, byLength)
+		case "begin":
+			check(&hasBegin, "begin")
+			criteria = append(criteria, byBegin)
+		case "end":
+			check(&hasEnd, "end")
+			criteria = append(criteria, byEnd)
+		default:
+			errorExit("invalid sort criterion: " + str)
+		}
+	}
+	return criteria
 }
 
 func dupeTheme(theme *curses.ColorTheme) *curses.ColorTheme {
-	dupe := *theme
-	return &dupe
+	if theme != nil {
+		dupe := *theme
+		return &dupe
+	}
+	return nil
 }
 
 func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme {
@@ -403,7 +427,7 @@ func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme
 			}
 			// Color is disabled
 			if theme == nil {
-				errorExit("colors disabled; cannot customize colors")
+				continue
 			}
 
 			pair := strings.Split(str, ":")
@@ -464,15 +488,18 @@ const (
 	escapedComma = 1
 )
 
-func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort bool, str string) (map[int]actionType, map[int]string, bool) {
+func parseKeymap(keymap map[int]actionType, execmap map[int]string, str string) {
 	if executeRegexp == nil {
 		// Backreferences are not supported.
 		// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
 		executeRegexp = regexp.MustCompile(
-			"(?s):execute:.*|:execute(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
+			"(?s):execute(-multi)?:.*|:execute(-multi)?(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
 	}
 	masked := executeRegexp.ReplaceAllStringFunc(str, func(src string) string {
-		return ":execute(" + strings.Repeat(" ", len(src)-10) + ")"
+		if strings.HasPrefix(src, ":execute-multi") {
+			return ":execute-multi(" + strings.Repeat(" ", len(src)-len(":execute-multi()")) + ")"
+		}
+		return ":execute(" + strings.Repeat(" ", len(src)-len(":execute()")) + ")"
 	})
 	masked = strings.Replace(masked, "::", string([]rune{escapedColon, ':'}), -1)
 	masked = strings.Replace(masked, ",:", string([]rune{escapedComma, ':'}), -1)
@@ -543,6 +570,10 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actToggleDown
 		case "toggle-up":
 			keymap[key] = actToggleUp
+		case "toggle-in":
+			keymap[key] = actToggleIn
+		case "toggle-out":
+			keymap[key] = actToggleOut
 		case "toggle-all":
 			keymap[key] = actToggleAll
 		case "select-all":
@@ -565,28 +596,39 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			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:]
+				var offset int
+				if strings.HasPrefix(actLower, "execute-multi") {
+					keymap[key] = actExecuteMulti
+					offset = len("execute-multi")
 				} else {
-					execmap[key] = act[8 : len(act)-1]
+					keymap[key] = actExecute
+					offset = len("execute")
+				}
+				if act[offset] == ':' {
+					execmap[key] = act[offset+1:]
+				} else {
+					execmap[key] = act[offset+1 : 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 {
+	if !strings.HasPrefix(str, "execute") || len(str) < len("execute()") {
 		return false
 	}
-	b := str[7]
+	b := str[len("execute")]
+	if strings.HasPrefix(str, "execute-multi") {
+		if len(str) < len("execute-multi()") {
+			return false
+		}
+		b = str[len("execute-multi")]
+	}
 	e := str[len(str)-1]
 	if b == ':' || b == '(' && e == ')' || b == '[' && e == ']' ||
 		b == e && strings.ContainsAny(string(b), "~!@#$%^&*;/|") {
@@ -595,21 +637,16 @@ func isExecuteAction(str string) bool {
 	return false
 }
 
-func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
+func parseToggleSort(keymap map[int]actionType, str string) {
 	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 strLines(str string) []string {
+	return strings.Split(strings.TrimSuffix(str, "\n"), "\n")
 }
 
 func parseMargin(margin string) [4]string {
@@ -655,7 +692,6 @@ func parseMargin(margin string) [4]string {
 }
 
 func parseOptions(opts *Options, allArgs []string) {
-	keymap := make(map[int]actionType)
 	var historyMax int
 	if opts.History == nil {
 		historyMax = defaultHistoryMax
@@ -682,13 +718,19 @@ func parseOptions(opts *Options, allArgs []string) {
 		arg := allArgs[i]
 		switch arg {
 		case "-h", "--help":
-			help(0)
+			help(exitOk)
 		case "-x", "--extended":
-			opts.Mode = ModeExtended
-		case "-e", "--extended-exact":
-			opts.Mode = ModeExtendedExact
-		case "+x", "--no-extended", "+e", "--no-extended-exact":
-			opts.Mode = ModeFuzzy
+			opts.Extended = true
+		case "-e", "--exact":
+			opts.Fuzzy = false
+		case "--extended-exact":
+			// Note that we now don't have --no-extended-exact
+			opts.Fuzzy = false
+			opts.Extended = true
+		case "+x", "--no-extended":
+			opts.Extended = false
+		case "+e", "--no-exact":
+			opts.Fuzzy = true
 		case "-q", "--query":
 			opts.Query = nextString(allArgs, &i, "query string required")
 		case "-f", "--filter":
@@ -697,10 +739,9 @@ func parseOptions(opts *Options, allArgs []string) {
 		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"))
+			opts.Criteria = 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"))
+			parseKeymap(opts.Keymap, opts.Execmap, nextString(allArgs, &i, "bind expression required"))
 		case "--color":
 			spec := optionalNextString(allArgs, &i)
 			if len(spec) == 0 {
@@ -709,8 +750,7 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Theme = parseTheme(opts.Theme, spec)
 			}
 		case "--toggle-sort":
-			keymap = checkToggleSort(keymap, nextString(allArgs, &i, "key name required"))
-			opts.ToggleSort = true
+			parseToggleSort(opts.Keymap, nextString(allArgs, &i, "key name required"))
 		case "-d", "--delimiter":
 			opts.Delimiter = delimiterRegexp(nextString(allArgs, &i, "delimiter required"))
 		case "-n", "--nth":
@@ -759,6 +799,8 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Hscroll = true
 		case "--no-hscroll":
 			opts.Hscroll = false
+		case "--hscroll-off":
+			opts.HscrollOff = nextInt(allArgs, &i, "hscroll offset required")
 		case "--inline-info":
 			opts.InlineInfo = true
 		case "--no-inline-info":
@@ -793,16 +835,13 @@ func parseOptions(opts *Options, allArgs []string) {
 			setHistory(nextString(allArgs, &i, "history file path required"))
 		case "--history-size":
 			setHistoryMax(nextInt(allArgs, &i, "history max size required"))
-		case "--no-header-file":
+		case "--no-header":
 			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":
+			opts.Header = strLines(nextString(allArgs, &i, "header string required"))
 		case "--header-lines":
-			opts.Header = []string{}
 			opts.HeaderLines = atoi(
 				nextString(allArgs, &i, "number of header lines required"))
 		case "--no-margin":
@@ -810,6 +849,8 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--margin":
 			opts.Margin = parseMargin(
 				nextString(allArgs, &i, "margin required (TRBL / TB,RL / T,RL,B / T,R,B,L)"))
+		case "--tabstop":
+			opts.Tabstop = nextInt(allArgs, &i, "tab stop required")
 		case "--version":
 			opts.Version = true
 		default:
@@ -828,29 +869,29 @@ func parseOptions(opts *Options, allArgs []string) {
 			} 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
+				parseToggleSort(opts.Keymap, value)
 			} 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)
+				opts.Criteria = 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)
+				parseKeymap(opts.Keymap, opts.Execmap, 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="); match {
+				opts.Header = strLines(value)
 			} 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 if match, value := optString(arg, "--tabstop="); match {
+				opts.Tabstop = atoi(value)
+			} else if match, value := optString(arg, "--hscroll-off="); match {
+				opts.HscrollOff = atoi(value)
 			} else {
 				errorExit("unknown option: " + arg)
 			}
@@ -861,24 +902,39 @@ func parseOptions(opts *Options, allArgs []string) {
 		errorExit("header lines must be a non-negative integer")
 	}
 
-	// Change default actions for CTRL-N / CTRL-P when --history is used
+	if opts.HscrollOff < 0 {
+		errorExit("hscroll offset must be a non-negative integer")
+	}
+
+	if opts.Tabstop < 1 {
+		errorExit("tab stop must be a positive integer")
+	}
+}
+
+func postProcessOptions(opts *Options) {
+	// Default actions for CTRL-N / CTRL-P when --history is set
 	if opts.History != nil {
-		if _, prs := keymap[curses.CtrlP]; !prs {
-			keymap[curses.CtrlP] = actPreviousHistory
+		if _, prs := opts.Keymap[curses.CtrlP]; !prs {
+			opts.Keymap[curses.CtrlP] = actPreviousHistory
 		}
-		if _, prs := keymap[curses.CtrlN]; !prs {
-			keymap[curses.CtrlN] = actNextHistory
+		if _, prs := opts.Keymap[curses.CtrlN]; !prs {
+			opts.Keymap[curses.CtrlN] = actNextHistory
 		}
 	}
 
-	// Override default key bindings
-	for key, act := range keymap {
-		opts.Keymap[key] = act
+	// Extend the default key map
+	keymap := defaultKeymap()
+	for key, act := range opts.Keymap {
+		if act == actToggleSort {
+			opts.ToggleSort = true
+		}
+		keymap[key] = act
 	}
+	opts.Keymap = keymap
 
 	// 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 {
+	if !opts.Extended || len(opts.Nth) == 1 {
 		for _, r := range opts.Nth {
 			if r.begin == rangeEllipsis && r.end == rangeEllipsis {
 				opts.Nth = make([]Range, 0)
@@ -894,9 +950,13 @@ func ParseOptions() *Options {
 
 	// Options from Env var
 	words, _ := shellwords.Parse(os.Getenv("FZF_DEFAULT_OPTS"))
-	parseOptions(opts, words)
+	if len(words) > 0 {
+		parseOptions(opts, words)
+	}
 
 	// Options from command-line arguments
 	parseOptions(opts, os.Args[1:])
+
+	postProcessOptions(opts)
 	return opts
 }

src/options_test.go

@@ -96,14 +96,16 @@ func TestIrrelevantNth(t *testing.T) {
 		opts := defaultOptions()
 		words := []string{"--nth", "..", "-x"}
 		parseOptions(opts, words)
+		postProcessOptions(opts)
 		if len(opts.Nth) != 0 {
 			t.Errorf("nth should be empty: %s", opts.Nth)
 		}
 	}
-	for _, words := range [][]string{[]string{"--nth", "..,3"}, []string{"--nth", "3,1.."}, []string{"--nth", "..-1,1"}} {
+	for _, words := range [][]string{[]string{"--nth", "..,3", "+x"}, []string{"--nth", "3,1..", "+x"}, []string{"--nth", "..-1,1", "+x"}} {
 		{
 			opts := defaultOptions()
 			parseOptions(opts, words)
+			postProcessOptions(opts)
 			if len(opts.Nth) != 0 {
 				t.Errorf("nth should be empty: %s", opts.Nth)
 			}
@@ -112,6 +114,7 @@ func TestIrrelevantNth(t *testing.T) {
 			opts := defaultOptions()
 			words = append(words, "-x")
 			parseOptions(opts, words)
+			postProcessOptions(opts)
 			if len(opts.Nth) != 2 {
 				t.Errorf("nth should not be empty: %s", opts.Nth)
 			}
@@ -231,15 +234,11 @@ func TestBind(t *testing.T) {
 	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")
-	}
+	parseKeymap(keymap, execmap,
+		"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)")
 	check(actKillLine, keymap[curses.CtrlA])
 	check(actToggleSort, keymap[curses.CtrlB])
 	check(actPageUp, keymap[curses.AltZ+'c'])
@@ -259,15 +258,11 @@ func TestBind(t *testing.T) {
 	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))
+		parseKeymap(keymap, execmap, 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")
-	}
+	parseKeymap(keymap, execmap, "f1:abort")
 	check(actAbort, keymap[curses.F1])
 }
 
@@ -316,3 +311,65 @@ func TestColorSpec(t *testing.T) {
 		t.Errorf("using default colors")
 	}
 }
+
+func TestParseNilTheme(t *testing.T) {
+	var theme *curses.ColorTheme
+	newTheme := parseTheme(theme, "prompt:12")
+	if newTheme != nil {
+		t.Errorf("color is disabled. keep it that way.")
+	}
+	newTheme = parseTheme(theme, "prompt:12,dark,prompt:13")
+	if newTheme.Prompt != 13 {
+		t.Errorf("color should now be enabled and customized")
+	}
+}
+
+func TestDefaultCtrlNP(t *testing.T) {
+	check := func(words []string, key int, expected actionType) {
+		opts := defaultOptions()
+		parseOptions(opts, words)
+		postProcessOptions(opts)
+		if opts.Keymap[key] != expected {
+			t.Error()
+		}
+	}
+	check([]string{}, curses.CtrlN, actDown)
+	check([]string{}, curses.CtrlP, actUp)
+
+	check([]string{"--bind=ctrl-n:accept"}, curses.CtrlN, actAccept)
+	check([]string{"--bind=ctrl-p:accept"}, curses.CtrlP, actAccept)
+
+	hist := "--history=/tmp/foo"
+	check([]string{hist}, curses.CtrlN, actNextHistory)
+	check([]string{hist}, curses.CtrlP, actPreviousHistory)
+
+	check([]string{hist, "--bind=ctrl-n:accept"}, curses.CtrlN, actAccept)
+	check([]string{hist, "--bind=ctrl-n:accept"}, curses.CtrlP, actPreviousHistory)
+
+	check([]string{hist, "--bind=ctrl-p:accept"}, curses.CtrlN, actNextHistory)
+	check([]string{hist, "--bind=ctrl-p:accept"}, curses.CtrlP, actAccept)
+}
+
+func TestToggle(t *testing.T) {
+	optsFor := func(words ...string) *Options {
+		opts := defaultOptions()
+		parseOptions(opts, words)
+		postProcessOptions(opts)
+		return opts
+	}
+
+	opts := optsFor()
+	if opts.ToggleSort {
+		t.Error()
+	}
+
+	opts = optsFor("--bind=a:toggle-sort")
+	if !opts.ToggleSort {
+		t.Error()
+	}
+
+	opts = optsFor("--bind=a:toggle-sort", "--bind=a:up")
+	if opts.ToggleSort {
+		t.Error()
+	}
+}

src/pattern.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"github.com/junegunn/fzf/src/algo"
+	"github.com/junegunn/fzf/src/util"
 )
 
 // fuzzy
@@ -35,16 +36,20 @@ type term struct {
 	origText      []rune
 }
 
+type termSet []term
+
 // Pattern represents search pattern
 type Pattern struct {
-	mode          Mode
+	fuzzy         bool
+	extended      bool
 	caseSensitive bool
+	forward       bool
 	text          []rune
-	terms         []term
-	hasInvTerm    bool
+	termSets      []termSet
+	cacheable     bool
 	delimiter     Delimiter
 	nth           []Range
-	procFun       map[termType]func(bool, []rune, []rune) (int, int)
+	procFun       map[termType]func(bool, bool, []rune, []rune) algo.Result
 }
 
 var (
@@ -61,7 +66,7 @@ func init() {
 
 func clearPatternCache() {
 	// We can uniquely identify the pattern for a given string since
-	// mode and caseMode do not change while the program is running
+	// search mode and caseMode do not change while the program is running
 	_patternCache = make(map[string]*Pattern)
 }
 
@@ -70,14 +75,13 @@ func clearChunkCache() {
 }
 
 // BuildPattern builds Pattern object from the given arguments
-func BuildPattern(mode Mode, caseMode Case,
+func BuildPattern(fuzzy bool, extended bool, caseMode Case, forward bool,
 	nth []Range, delimiter Delimiter, runes []rune) *Pattern {
 
 	var asString string
-	switch mode {
-	case ModeExtended, ModeExtendedExact:
+	if extended {
 		asString = strings.Trim(string(runes), " ")
-	default:
+	} else {
 		asString = string(runes)
 	}
 
@@ -86,18 +90,23 @@ func BuildPattern(mode Mode, caseMode Case,
 		return cached
 	}
 
-	caseSensitive, hasInvTerm := true, false
-	terms := []term{}
+	caseSensitive, cacheable := true, true
+	termSets := []termSet{}
 
-	switch mode {
-	case ModeExtended, ModeExtendedExact:
-		terms = parseTerms(mode, caseMode, asString)
-		for _, term := range terms {
-			if term.inv {
-				hasInvTerm = true
+	if extended {
+		termSets = parseTerms(fuzzy, caseMode, asString)
+	Loop:
+		for _, termSet := range termSets {
+			for idx, term := range termSet {
+				// If the query contains inverse search terms or OR operators,
+				// we cannot cache the search scope
+				if idx > 0 || term.inv {
+					cacheable = false
+					break Loop
+				}
 			}
 		}
-	default:
+	} else {
 		lowerString := strings.ToLower(asString)
 		caseSensitive = caseMode == CaseRespect ||
 			caseMode == CaseSmart && lowerString != asString
@@ -107,14 +116,16 @@ func BuildPattern(mode Mode, caseMode Case,
 	}
 
 	ptr := &Pattern{
-		mode:          mode,
+		fuzzy:         fuzzy,
+		extended:      extended,
 		caseSensitive: caseSensitive,
+		forward:       forward,
 		text:          []rune(asString),
-		terms:         terms,
-		hasInvTerm:    hasInvTerm,
+		termSets:      termSets,
+		cacheable:     cacheable,
 		nth:           nth,
 		delimiter:     delimiter,
-		procFun:       make(map[termType]func(bool, []rune, []rune) (int, int))}
+		procFun:       make(map[termType]func(bool, bool, []rune, []rune) algo.Result)}
 
 	ptr.procFun[termFuzzy] = algo.FuzzyMatch
 	ptr.procFun[termEqual] = algo.EqualMatch
@@ -126,9 +137,11 @@ func BuildPattern(mode Mode, caseMode Case,
 	return ptr
 }
 
-func parseTerms(mode Mode, caseMode Case, str string) []term {
+func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
 	tokens := _splitRegex.Split(str, -1)
-	terms := []term{}
+	sets := []termSet{}
+	set := termSet{}
+	switchSet := false
 	for _, token := range tokens {
 		typ, inv, text := termFuzzy, false, token
 		lowerText := strings.ToLower(text)
@@ -138,19 +151,28 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 			text = lowerText
 		}
 		origText := []rune(text)
-		if mode == ModeExtendedExact {
+		if !fuzzy {
 			typ = termExact
 		}
 
+		if text == "|" {
+			switchSet = false
+			continue
+		}
+
 		if strings.HasPrefix(text, "!") {
 			inv = true
 			text = text[1:]
 		}
 
 		if strings.HasPrefix(text, "'") {
-			if mode == ModeExtended {
+			// Flip exactness
+			if fuzzy {
 				typ = termExact
 				text = text[1:]
+			} else {
+				typ = termFuzzy
+				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
 			if strings.HasSuffix(text, "$") {
@@ -166,23 +188,31 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 		}
 
 		if len(text) > 0 {
-			terms = append(terms, term{
+			if switchSet {
+				sets = append(sets, set)
+				set = termSet{}
+			}
+			set = append(set, term{
 				typ:           typ,
 				inv:           inv,
 				text:          []rune(text),
 				caseSensitive: caseSensitive,
 				origText:      origText})
+			switchSet = true
 		}
 	}
-	return terms
+	if len(set) > 0 {
+		sets = append(sets, set)
+	}
+	return sets
 }
 
 // IsEmpty returns true if the pattern is effectively empty
 func (p *Pattern) IsEmpty() bool {
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		return len(p.text) == 0
 	}
-	return len(p.terms) == 0
+	return len(p.termSets) == 0
 }
 
 // AsString returns the search query in string type
@@ -192,15 +222,14 @@ func (p *Pattern) AsString() string {
 
 // CacheKey is used to build string to be used as the key of result cache
 func (p *Pattern) CacheKey() string {
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		return p.AsString()
 	}
 	cacheableTerms := []string{}
-	for _, term := range p.terms {
-		if term.inv {
-			continue
+	for _, termSet := range p.termSets {
+		if len(termSet) == 1 && !termSet[0].inv {
+			cacheableTerms = append(cacheableTerms, string(termSet[0].origText))
 		}
-		cacheableTerms = append(cacheableTerms, string(term.origText))
 	}
 	return strings.Join(cacheableTerms, " ")
 }
@@ -211,7 +240,7 @@ func (p *Pattern) Match(chunk *Chunk) []*Item {
 
 	// ChunkCache: Exact match
 	cacheKey := p.CacheKey()
-	if !p.hasInvTerm { // Because we're excluding Inv-term from cache key
+	if p.cacheable {
 		if cached, found := _cache.Find(chunk, cacheKey); found {
 			return cached
 		}
@@ -236,7 +265,7 @@ Loop:
 
 	matches := p.matchChunk(space)
 
-	if !p.hasInvTerm {
+	if p.cacheable {
 		_cache.Add(chunk, cacheKey, matches)
 	}
 	return matches
@@ -244,17 +273,18 @@ Loop:
 
 func (p *Pattern) matchChunk(chunk *Chunk) []*Item {
 	matches := []*Item{}
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		for _, item := range *chunk {
-			if sidx, eidx := p.fuzzyMatch(item); sidx >= 0 {
+			offset, bonus := p.basicMatch(item)
+			if sidx := offset[0]; sidx >= 0 {
 				matches = append(matches,
-					dupItem(item, []Offset{Offset{int32(sidx), int32(eidx)}}))
+					dupItem(item, []Offset{offset}, bonus))
 			}
 		}
 	} else {
 		for _, item := range *chunk {
-			if offsets := p.extendedMatch(item); len(offsets) == len(p.terms) {
-				matches = append(matches, dupItem(item, offsets))
+			if offsets, bonus := p.extendedMatch(item); len(offsets) == len(p.termSets) {
+				matches = append(matches, dupItem(item, offsets, bonus))
 			}
 		}
 	}
@@ -263,46 +293,62 @@ func (p *Pattern) matchChunk(chunk *Chunk) []*Item {
 
 // MatchItem returns true if the Item is a match
 func (p *Pattern) MatchItem(item *Item) bool {
-	if p.mode == ModeFuzzy {
-		sidx, _ := p.fuzzyMatch(item)
+	if !p.extended {
+		offset, _ := p.basicMatch(item)
+		sidx := offset[0]
 		return sidx >= 0
 	}
-	offsets := p.extendedMatch(item)
-	return len(offsets) == len(p.terms)
+	offsets, _ := p.extendedMatch(item)
+	return len(offsets) == len(p.termSets)
 }
 
-func dupItem(item *Item, offsets []Offset) *Item {
+func dupItem(item *Item, offsets []Offset, bonus int32) *Item {
 	sort.Sort(ByOrder(offsets))
 	return &Item{
 		text:        item.text,
 		origText:    item.origText,
 		transformed: item.transformed,
-		index:       item.index,
 		offsets:     offsets,
+		bonus:       bonus,
 		colors:      item.colors,
-		rank:        Rank{0, 0, item.index}}
+		rank:        buildEmptyRank(item.Index())}
 }
 
-func (p *Pattern) fuzzyMatch(item *Item) (int, int) {
+func (p *Pattern) basicMatch(item *Item) (Offset, int32) {
 	input := p.prepareInput(item)
-	return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.text)
+	if p.fuzzy {
+		return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.forward, p.text)
+	}
+	return p.iter(algo.ExactMatchNaive, input, p.caseSensitive, p.forward, p.text)
 }
 
-func (p *Pattern) extendedMatch(item *Item) []Offset {
+func (p *Pattern) extendedMatch(item *Item) ([]Offset, int32) {
 	input := p.prepareInput(item)
 	offsets := []Offset{}
-	for _, term := range p.terms {
-		pfun := p.procFun[term.typ]
-		if sidx, eidx := p.iter(pfun, input, term.caseSensitive, term.text); sidx >= 0 {
-			if term.inv {
+	var totalBonus int32
+	for _, termSet := range p.termSets {
+		var offset *Offset
+		var bonus int32
+		for _, term := range termSet {
+			pfun := p.procFun[term.typ]
+			off, pen := p.iter(pfun, input, term.caseSensitive, p.forward, term.text)
+			if sidx := off[0]; sidx >= 0 {
+				if term.inv {
+					continue
+				}
+				offset, bonus = &off, pen
 				break
+			} else if term.inv {
+				offset, bonus = &Offset{0, 0, 0}, 0
+				continue
 			}
-			offsets = append(offsets, Offset{int32(sidx), int32(eidx)})
-		} else if term.inv {
-			offsets = append(offsets, Offset{0, 0})
+		}
+		if offset != nil {
+			offsets = append(offsets, *offset)
+			totalBonus += bonus
 		}
 	}
-	return offsets
+	return offsets, totalBonus
 }
 
 func (p *Pattern) prepareInput(item *Item) []Token {
@@ -315,19 +361,22 @@ func (p *Pattern) prepareInput(item *Item) []Token {
 		tokens := Tokenize(item.text, p.delimiter)
 		ret = Transform(tokens, p.nth)
 	} else {
-		ret = []Token{Token{text: item.text, prefixLength: 0}}
+		ret = []Token{Token{text: item.text, prefixLength: 0, trimLength: util.TrimLen(item.text)}}
 	}
 	item.transformed = ret
 	return ret
 }
 
-func (p *Pattern) iter(pfun func(bool, []rune, []rune) (int, int),
-	tokens []Token, caseSensitive bool, pattern []rune) (int, int) {
+func (p *Pattern) iter(pfun func(bool, bool, []rune, []rune) algo.Result,
+	tokens []Token, caseSensitive bool, forward bool, pattern []rune) (Offset, int32) {
 	for _, part := range tokens {
-		prefixLength := part.prefixLength
-		if sidx, eidx := pfun(caseSensitive, part.text, pattern); sidx >= 0 {
-			return sidx + prefixLength, eidx + prefixLength
+		prefixLength := int32(part.prefixLength)
+		if res := pfun(caseSensitive, forward, part.text, pattern); res.Start >= 0 {
+			var sidx int32 = res.Start + prefixLength
+			var eidx int32 = res.End + prefixLength
+			return Offset{sidx, eidx, int32(part.trimLength)}, res.Bonus
 		}
 	}
-	return -1, -1
+	// TODO: math.MaxUint16
+	return Offset{-1, -1, -1}, 0.0
 }

src/pattern_test.go

@@ -8,21 +8,26 @@ import (
 )
 
 func TestParseTermsExtended(t *testing.T) {
-	terms := parseTerms(ModeExtended, CaseSmart,
-		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ ^iii$")
+	terms := parseTerms(true, CaseSmart,
+		"| aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | | zzz$ | !ZZZ |")
 	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 ||
-		terms[3].typ != termSuffix || terms[3].inv ||
-		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[8].typ != termEqual || terms[8].inv {
+		terms[0][0].typ != termFuzzy || terms[0][0].inv ||
+		terms[1][0].typ != termExact || terms[1][0].inv ||
+		terms[2][0].typ != termPrefix || terms[2][0].inv ||
+		terms[3][0].typ != termSuffix || terms[3][0].inv ||
+		terms[4][0].typ != termFuzzy || !terms[4][0].inv ||
+		terms[5][0].typ != termExact || !terms[5][0].inv ||
+		terms[6][0].typ != termPrefix || !terms[6][0].inv ||
+		terms[7][0].typ != termSuffix || !terms[7][0].inv ||
+		terms[7][1].typ != termEqual || terms[7][1].inv ||
+		terms[8][0].typ != termPrefix || terms[8][0].inv ||
+		terms[8][1].typ != termExact || terms[8][1].inv ||
+		terms[8][2].typ != termSuffix || terms[8][2].inv ||
+		terms[8][3].typ != termFuzzy || !terms[8][3].inv {
 		t.Errorf("%s", terms)
 	}
-	for idx, term := range terms {
+	for idx, termSet := range terms[:8] {
+		term := termSet[0]
 		if len(term.text) != 3 {
 			t.Errorf("%s", term)
 		}
@@ -30,26 +35,31 @@ func TestParseTermsExtended(t *testing.T) {
 			t.Errorf("%s", term)
 		}
 	}
+	for _, term := range terms[8] {
+		if len(term.origText) != 4 {
+			t.Errorf("%s", term)
+		}
+	}
 }
 
 func TestParseTermsExtendedExact(t *testing.T) {
-	terms := parseTerms(ModeExtendedExact, CaseSmart,
+	terms := parseTerms(false, 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 ||
-		terms[1].typ != termExact || terms[1].inv || len(terms[1].text) != 4 ||
-		terms[2].typ != termPrefix || terms[2].inv || len(terms[2].text) != 3 ||
-		terms[3].typ != termSuffix || terms[3].inv || len(terms[3].text) != 3 ||
-		terms[4].typ != termExact || !terms[4].inv || len(terms[4].text) != 3 ||
-		terms[5].typ != termExact || !terms[5].inv || len(terms[5].text) != 4 ||
-		terms[6].typ != termPrefix || !terms[6].inv || len(terms[6].text) != 3 ||
-		terms[7].typ != termSuffix || !terms[7].inv || len(terms[7].text) != 3 {
+		terms[0][0].typ != termExact || terms[0][0].inv || len(terms[0][0].text) != 3 ||
+		terms[1][0].typ != termFuzzy || terms[1][0].inv || len(terms[1][0].text) != 3 ||
+		terms[2][0].typ != termPrefix || terms[2][0].inv || len(terms[2][0].text) != 3 ||
+		terms[3][0].typ != termSuffix || terms[3][0].inv || len(terms[3][0].text) != 3 ||
+		terms[4][0].typ != termExact || !terms[4][0].inv || len(terms[4][0].text) != 3 ||
+		terms[5][0].typ != termFuzzy || !terms[5][0].inv || len(terms[5][0].text) != 3 ||
+		terms[6][0].typ != termPrefix || !terms[6][0].inv || len(terms[6][0].text) != 3 ||
+		terms[7][0].typ != termSuffix || !terms[7][0].inv || len(terms[7][0].text) != 3 {
 		t.Errorf("%s", terms)
 	}
 }
 
 func TestParseTermsEmpty(t *testing.T) {
-	terms := parseTerms(ModeExtended, CaseSmart, "' $ ^ !' !^ !$")
+	terms := parseTerms(true, CaseSmart, "' $ ^ !' !^ !$")
 	if len(terms) != 0 {
 		t.Errorf("%s", terms)
 	}
@@ -58,25 +68,25 @@ func TestParseTermsEmpty(t *testing.T) {
 func TestExact(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart,
+	pattern := BuildPattern(true, true, CaseSmart, true,
 		[]Range{}, Delimiter{}, []rune("'abc"))
-	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)
+	res := algo.ExactMatchNaive(
+		pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.termSets[0][0].text)
+	if res.Start != 7 || res.End != 10 {
+		t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 	}
 }
 
 func TestEqual(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, Delimiter{}, []rune("^AbC$"))
+	pattern := BuildPattern(true, true, CaseSmart, true, []Range{}, Delimiter{}, []rune("^AbC$"))
 
-	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 := func(str string, sidxExpected int32, eidxExpected int32) {
+		res := algo.EqualMatch(
+			pattern.caseSensitive, pattern.forward, []rune(str), pattern.termSets[0][0].text)
+		if res.Start != sidxExpected || res.End != eidxExpected {
+			t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 		}
 	}
 	match("ABC", -1, -1)
@@ -86,17 +96,17 @@ func TestEqual(t *testing.T) {
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pat1 := BuildPattern(ModeFuzzy, CaseSmart, []Range{}, Delimiter{}, []rune("abc"))
+	pat1 := BuildPattern(true, false, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat2 := BuildPattern(ModeFuzzy, CaseSmart, []Range{}, Delimiter{}, []rune("Abc"))
+	pat2 := BuildPattern(true, false, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, Delimiter{}, []rune("abc"))
+	pat3 := BuildPattern(true, false, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, Delimiter{}, []rune("Abc"))
+	pat4 := BuildPattern(true, false, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat5 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, Delimiter{}, []rune("abc"))
+	pat5 := BuildPattern(true, false, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat6 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, Delimiter{}, []rune("Abc"))
+	pat6 := BuildPattern(true, false, CaseRespect, true, []Range{}, Delimiter{}, []rune("Abc"))
 
 	if string(pat1.text) != "abc" || pat1.caseSensitive != false ||
 		string(pat2.text) != "Abc" || pat2.caseSensitive != true ||
@@ -109,19 +119,19 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, Delimiter{}, []rune("jg"))
+	pattern := BuildPattern(true, true, CaseSmart, true, []Range{}, Delimiter{}, []rune("jg"))
 	tokens := Tokenize([]rune("junegunn"), Delimiter{})
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
 	origRunes := []rune("junegunn.choi")
-	for _, mode := range []Mode{ModeFuzzy, ModeExtended} {
+	for _, extended := range []bool{false, true} {
 		chunk := Chunk{
 			&Item{
 				text:        []rune("junegunn"),
 				origText:    &origRunes,
 				transformed: trans},
 		}
-		pattern.mode = mode
+		pattern.extended = extended
 		matches := pattern.matchChunk(&chunk)
 		if string(matches[0].text) != "junegunn" || string(*matches[0].origText) != "junegunn.choi" ||
 			matches[0].offsets[0][0] != 0 || matches[0].offsets[0][1] != 5 ||
@@ -130,3 +140,25 @@ func TestOrigTextAndTransformed(t *testing.T) {
 		}
 	}
 }
+
+func TestCacheKey(t *testing.T) {
+	test := func(extended bool, patStr string, expected string, cacheable bool) {
+		pat := BuildPattern(true, extended, CaseSmart, true, []Range{}, Delimiter{}, []rune(patStr))
+		if pat.CacheKey() != expected {
+			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
+		}
+		if pat.cacheable != cacheable {
+			t.Errorf("Expected: %s, actual: %s (%s)", cacheable, pat.cacheable, patStr)
+		}
+		clearPatternCache()
+	}
+	test(false, "foo !bar", "foo !bar", true)
+	test(false, "foo | bar !baz", "foo | bar !baz", true)
+	test(true, "foo  bar  baz", "foo bar baz", true)
+	test(true, "foo !bar", "foo", false)
+	test(true, "foo !bar   baz", "foo baz", false)
+	test(true, "foo | bar baz", "baz", false)
+	test(true, "foo | bar | baz", "", false)
+	test(true, "foo | bar !baz", "", false)
+	test(true, "| | | foo", "foo", true)
+}

src/reader.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"io"
 	"os"
-	"os/exec"
 
 	"github.com/junegunn/fzf/src/util"
 )
@@ -59,7 +58,7 @@ func (r *Reader) readFromStdin() {
 }
 
 func (r *Reader) readFromCommand(cmd string) {
-	listCommand := exec.Command("sh", "-c", cmd)
+	listCommand := util.ExecCommand(cmd)
 	out, err := listCommand.StdoutPipe()
 	if err != nil {
 		return

src/terminal.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"fmt"
 	"os"
-	"os/exec"
 	"os/signal"
 	"regexp"
 	"sort"
@@ -22,10 +21,12 @@ import (
 
 // Terminal represents terminal input/output
 type Terminal struct {
+	initDelay  time.Duration
 	inlineInfo bool
 	prompt     string
 	reverse    bool
 	hscroll    bool
+	hscrollOff int
 	cx         int
 	cy         int
 	offset     int
@@ -42,13 +43,15 @@ type Terminal struct {
 	history    *History
 	cycle      bool
 	header     []string
+	header0    []string
+	ansi       bool
 	margin     [4]string
 	marginInt  [4]int
 	count      int
 	progress   int
 	reading    bool
 	merger     *Merger
-	selected   map[uint32]selectedItem
+	selected   map[int32]selectedItem
 	reqBox     *util.EventBox
 	eventBox   *util.EventBox
 	mutex      sync.Mutex
@@ -78,6 +81,7 @@ func (a byTimeOrder) Less(i, j int) bool {
 
 var _spinner = []string{`-`, `\`, `|`, `/`, `-`, `\`, `|`, `/`}
 var _runeWidths = make(map[rune]int)
+var _tabStop int
 
 const (
 	reqPrompt util.EventType = iota
@@ -122,6 +126,8 @@ const (
 	actToggleAll
 	actToggleDown
 	actToggleUp
+	actToggleIn
+	actToggleOut
 	actDown
 	actUp
 	actPageUp
@@ -130,6 +136,7 @@ const (
 	actPreviousHistory
 	actNextHistory
 	actExecute
+	actExecuteMulti
 )
 
 func defaultKeymap() map[int]actionType {
@@ -178,17 +185,33 @@ func defaultKeymap() map[int]actionType {
 
 	keymap[C.Rune] = actRune
 	keymap[C.Mouse] = actMouse
+	keymap[C.DoubleClick] = actAccept
 	return keymap
 }
 
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := []rune(opts.Query)
+	var header []string
+	if opts.Reverse {
+		header = opts.Header
+	} else {
+		header = reverseStringArray(opts.Header)
+	}
+	_tabStop = opts.Tabstop
+	var delay time.Duration
+	if opts.Tac {
+		delay = initialDelayTac
+	} else {
+		delay = initialDelay
+	}
 	return &Terminal{
+		initDelay:  delay,
 		inlineInfo: opts.InlineInfo,
 		prompt:     opts.Prompt,
 		reverse:    opts.Reverse,
 		hscroll:    opts.Hscroll,
+		hscrollOff: opts.HscrollOff,
 		cx:         len(input),
 		cy:         0,
 		offset:     0,
@@ -206,10 +229,12 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		margin:     opts.Margin,
 		marginInt:  [4]int{0, 0, 0, 0},
 		cycle:      opts.Cycle,
-		header:     opts.Header,
+		header:     header,
+		header0:    header,
+		ansi:       opts.Ansi,
 		reading:    true,
 		merger:     EmptyMerger,
-		selected:   make(map[uint32]selectedItem),
+		selected:   make(map[int32]selectedItem),
 		reqBox:     util.NewEventBox(),
 		eventBox:   eventBox,
 		mutex:      sync.Mutex{},
@@ -239,18 +264,19 @@ 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
+func reverseStringArray(input []string) []string {
+	size := len(input)
+	reversed := make([]string, size)
+	for idx, str := range input {
+		reversed[size-idx-1] = str
 	}
+	return reversed
+}
+
+// UpdateHeader updates the header
+func (t *Terminal) UpdateHeader(header []string) {
+	t.mutex.Lock()
+	t.header = append(append([]string{}, t.header0...), header...)
 	t.mutex.Unlock()
 	t.reqBox.Set(reqHeader, nil)
 }
@@ -278,33 +304,40 @@ func (t *Terminal) UpdateList(merger *Merger) {
 	t.reqBox.Set(reqList, nil)
 }
 
-func (t *Terminal) output() {
+func (t *Terminal) output() bool {
 	if t.printQuery {
 		fmt.Println(string(t.input))
 	}
 	if len(t.expect) > 0 {
 		fmt.Println(t.pressed)
 	}
-	if len(t.selected) == 0 {
+	found := len(t.selected) > 0
+	if !found {
 		cnt := t.merger.Length()
 		if cnt > 0 && cnt > t.cy {
-			fmt.Println(t.merger.Get(t.cy).AsString())
+			fmt.Println(t.merger.Get(t.cy).AsString(t.ansi))
+			found = true
 		}
 	} else {
-		sels := make([]selectedItem, 0, len(t.selected))
-		for _, sel := range t.selected {
-			sels = append(sels, sel)
-		}
-		sort.Sort(byTimeOrder(sels))
-		for _, sel := range sels {
+		for _, sel := range t.sortSelected() {
 			fmt.Println(*sel.text)
 		}
 	}
+	return found
+}
+
+func (t *Terminal) sortSelected() []selectedItem {
+	sels := make([]selectedItem, 0, len(t.selected))
+	for _, sel := range t.selected {
+		sels = append(sels, sel)
+	}
+	sort.Sort(byTimeOrder(sels))
+	return sels
 }
 
 func runeWidth(r rune, prefixWidth int) int {
 	if r == '\t' {
-		return 8 - prefixWidth%8
+		return _tabStop - prefixWidth%_tabStop
 	} else if w, found := _runeWidths[r]; found {
 		return w
 	} else {
@@ -376,7 +409,7 @@ func (t *Terminal) move(y int, x int, clear bool) {
 }
 
 func (t *Terminal) placeCursor() {
-	t.move(0, len(t.prompt)+displayWidth(t.input[:t.cx]), false)
+	t.move(0, displayWidth([]rune(t.prompt))+displayWidth(t.input[:t.cx]), false)
 }
 
 func (t *Terminal) printPrompt() {
@@ -387,7 +420,7 @@ func (t *Terminal) printPrompt() {
 
 func (t *Terminal) printInfo() {
 	if t.inlineInfo {
-		t.move(0, len(t.prompt)+displayWidth(t.input)+1, true)
+		t.move(0, displayWidth([]rune(t.prompt))+displayWidth(t.input)+1, true)
 		if t.reading {
 			C.CPrint(C.ColSpinner, true, " < ")
 		} else {
@@ -431,9 +464,6 @@ func (t *Terminal) printHeader() {
 	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--
@@ -445,9 +475,8 @@ func (t *Terminal) printHeader() {
 		state = newState
 		item := &Item{
 			text:   []rune(trimmed),
-			index:  0,
 			colors: colors,
-			rank:   Rank{0, 0, 0}}
+			rank:   buildEmptyRank(0)}
 
 		t.move(line, 2, true)
 		t.printHighlighted(item, false, C.ColHeader, 0, false)
@@ -472,7 +501,7 @@ func (t *Terminal) printList() {
 }
 
 func (t *Terminal) printItem(item *Item, current bool) {
-	_, selected := t.selected[item.index]
+	_, selected := t.selected[item.Index()]
 	if current {
 		C.CPrint(C.ColCursor, true, ">")
 		if selected {
@@ -529,11 +558,9 @@ func trimLeft(runes []rune, width int) ([]rune, int32) {
 }
 
 func (t *Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int, current bool) {
-	var maxe int32
+	var maxe int
 	for _, offset := range item.offsets {
-		if offset[1] > maxe {
-			maxe = offset[1]
-		}
+		maxe = util.Max(maxe, int(offset[1]))
 	}
 
 	// Overflow
@@ -541,6 +568,7 @@ func (t *Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int, c
 	copy(text, item.text)
 	offsets := item.colorOffsets(col2, bold, current)
 	maxWidth := C.MaxX() - 3 - t.marginInt[1] - t.marginInt[3]
+	maxe = util.Constrain(maxe+util.Min(maxWidth/2-2, t.hscrollOff), 0, len(text))
 	fullWidth := displayWidth(text)
 	if fullWidth > maxWidth {
 		if t.hscroll {
@@ -683,12 +711,18 @@ func (t *Terminal) rubout(pattern string) {
 }
 
 func keyMatch(key int, event C.Event) bool {
-	return event.Type == key || event.Type == C.Rune && int(event.Char) == key-C.AltZ
+	return event.Type == key ||
+		event.Type == C.Rune && int(event.Char) == key-C.AltZ ||
+		event.Type == C.Mouse && key == C.DoubleClick && event.MouseEvent.Double
 }
 
-func executeCommand(template string, current string) {
-	command := strings.Replace(template, "{}", fmt.Sprintf("%q", current), -1)
-	cmd := exec.Command("sh", "-c", command)
+func quoteEntry(entry string) string {
+	return fmt.Sprintf("%q", entry)
+}
+
+func executeCommand(template string, replacement string) {
+	command := strings.Replace(template, "{}", replacement, -1)
+	cmd := util.ExecCommand(command)
 	cmd.Stdin = os.Stdin
 	cmd.Stdout = os.Stdout
 	cmd.Stderr = os.Stderr
@@ -701,6 +735,22 @@ func executeCommand(template string, current string) {
 func (t *Terminal) Loop() {
 	<-t.startChan
 	{ // Late initialization
+		intChan := make(chan os.Signal, 1)
+		signal.Notify(intChan, os.Interrupt, os.Kill, syscall.SIGTERM)
+		go func() {
+			<-intChan
+			t.reqBox.Set(reqQuit, nil)
+		}()
+
+		resizeChan := make(chan os.Signal, 1)
+		signal.Notify(resizeChan, syscall.SIGWINCH)
+		go func() {
+			for {
+				<-resizeChan
+				t.reqBox.Set(reqRedraw, nil)
+			}
+		}()
+
 		t.mutex.Lock()
 		t.initFunc()
 		t.calculateMargins()
@@ -711,20 +761,11 @@ func (t *Terminal) Loop() {
 		t.printHeader()
 		t.mutex.Unlock()
 		go func() {
-			timer := time.NewTimer(initialDelay)
+			timer := time.NewTimer(t.initDelay)
 			<-timer.C
 			t.reqBox.Set(reqRefresh, nil)
 		}()
 
-		resizeChan := make(chan os.Signal, 1)
-		signal.Notify(resizeChan, syscall.SIGWINCH)
-		go func() {
-			for {
-				<-resizeChan
-				t.reqBox.Set(reqRedraw, nil)
-			}
-		}()
-
 		// Keep the spinner spinning
 		go func() {
 			for {
@@ -741,7 +782,7 @@ func (t *Terminal) Loop() {
 	}
 
 	exit := func(code int) {
-		if code == 0 && t.history != nil {
+		if code <= exitNoMatch && t.history != nil {
 			t.history.append(string(t.input))
 		}
 		os.Exit(code)
@@ -774,11 +815,13 @@ func (t *Terminal) Loop() {
 						t.printAll()
 					case reqClose:
 						C.Close()
-						t.output()
-						exit(0)
+						if t.output() {
+							exit(exitOk)
+						}
+						exit(exitNoMatch)
 					case reqQuit:
 						C.Close()
-						exit(1)
+						exit(exitInterrupt)
 					}
 				}
 				t.placeCursor()
@@ -804,8 +847,8 @@ 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()}
+			if _, found := t.selected[item.Index()]; !found {
+				t.selected[item.Index()] = selectedItem{time.Now(), item.StringPtr(t.ansi)}
 				return true
 			}
 			return false
@@ -813,7 +856,7 @@ func (t *Terminal) Loop() {
 		toggleY := func(y int) {
 			item := t.merger.Get(y)
 			if !selectItem(item) {
-				delete(t.selected, item.index)
+				delete(t.selected, item.Index())
 			}
 		}
 		toggle := func() {
@@ -830,6 +873,229 @@ func (t *Terminal) Loop() {
 			}
 		}
 
+		var doAction func(actionType, int) bool
+		doAction = func(action actionType, mapkey int) bool {
+			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], quoteEntry(item.AsString(t.ansi)))
+				}
+			case actExecuteMulti:
+				if len(t.selected) > 0 {
+					sels := make([]string, len(t.selected))
+					for i, sel := range t.sortSelected() {
+						sels[i] = quoteEntry(*sel.text)
+					}
+					executeCommand(t.execmap[mapkey], strings.Join(sels, " "))
+				} else {
+					return doAction(actExecute, mapkey)
+				}
+			case actInvalid:
+				t.mutex.Unlock()
+				return false
+			case actToggleSort:
+				t.sort = !t.sort
+				t.eventBox.Set(EvtSearchNew, t.sort)
+				t.mutex.Unlock()
+				return false
+			case actBeginningOfLine:
+				t.cx = 0
+			case actBackwardChar:
+				if t.cx > 0 {
+					t.cx--
+				}
+			case actAbort:
+				req(reqQuit)
+			case actDeleteChar:
+				t.delChar()
+			case actDeleteCharEOF:
+				if !t.delChar() && t.cx == 0 {
+					req(reqQuit)
+				}
+			case actEndOfLine:
+				t.cx = len(t.input)
+			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 actBackwardDeleteChar:
+				if t.cx > 0 {
+					t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
+					t.cx--
+				}
+			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 actToggleIn:
+				if t.reverse {
+					return doAction(actToggleUp, mapkey)
+				}
+				return doAction(actToggleDown, mapkey)
+			case actToggleOut:
+				if t.reverse {
+					return doAction(actToggleDown, mapkey)
+				}
+				return doAction(actToggleUp, mapkey)
+			case actToggleDown:
+				if t.multi && t.merger.Length() > 0 {
+					toggle()
+					t.vmove(-1)
+					req(reqList)
+				}
+			case actToggleUp:
+				if t.multi && t.merger.Length() > 0 {
+					toggle()
+					t.vmove(1)
+					req(reqList)
+				}
+			case actDown:
+				t.vmove(-1)
+				req(reqList)
+			case actUp:
+				t.vmove(1)
+				req(reqList)
+			case actAccept:
+				req(reqClose)
+			case actClearScreen:
+				req(reqRedraw)
+			case actUnixLineDiscard:
+				if t.cx > 0 {
+					t.yanked = copySlice(t.input[:t.cx])
+					t.input = t.input[t.cx:]
+					t.cx = 0
+				}
+			case actUnixWordRubout:
+				if t.cx > 0 {
+					t.rubout("\\s\\S")
+				}
+			case actBackwardKillWord:
+				if t.cx > 0 {
+					t.rubout("[^[:alnum:]][[:alnum:]]")
+				}
+			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 actPageUp:
+				t.vmove(t.maxItems() - 1)
+				req(reqList)
+			case actPageDown:
+				t.vmove(-(t.maxItems() - 1))
+				req(reqList)
+			case actBackwardWord:
+				t.cx = findLastMatch("[^[:alnum:]][[:alnum:]]", string(t.input[:t.cx])) + 1
+			case actForwardWord:
+				t.cx += findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", string(t.input[t.cx:])) + 1
+			case actKillWord:
+				ncx := t.cx +
+					findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", 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 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 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 {
+						if t.multi && me.Mod {
+							toggle()
+						}
+						t.vmove(me.S)
+						req(reqList)
+					}
+				} 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-displayWidth([]rune(t.prompt)), 0, len(t.input))
+					if !t.reverse {
+						my = t.maxHeight() - my - 1
+					}
+					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() {
+								return doAction(t.keymap[C.DoubleClick], C.DoubleClick)
+							}
+						}
+					} 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)
+						}
+					}
+				}
+			}
+			return true
+		}
 		action := t.keymap[event.Type]
 		mapkey := event.Type
 		if event.Type == C.Rune {
@@ -838,204 +1104,8 @@ func (t *Terminal) Loop() {
 				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()
+		if !doAction(action, mapkey) {
 			continue
-		case actToggleSort:
-			t.sort = !t.sort
-			t.eventBox.Set(EvtSearchNew, t.sort)
-			t.mutex.Unlock()
-			continue
-		case actBeginningOfLine:
-			t.cx = 0
-		case actBackwardChar:
-			if t.cx > 0 {
-				t.cx--
-			}
-		case actAbort:
-			req(reqQuit)
-		case actDeleteChar:
-			t.delChar()
-		case actDeleteCharEOF:
-			if !t.delChar() && t.cx == 0 {
-				req(reqQuit)
-			}
-		case actEndOfLine:
-			t.cx = len(t.input)
-		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 actBackwardDeleteChar:
-			if t.cx > 0 {
-				t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
-				t.cx--
-			}
-		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 actToggleUp:
-			if t.multi && t.merger.Length() > 0 {
-				toggle()
-				t.vmove(1)
-				req(reqList)
-			}
-		case actDown:
-			t.vmove(-1)
-			req(reqList)
-		case actUp:
-			t.vmove(1)
-			req(reqList)
-		case actAccept:
-			req(reqClose)
-		case actClearScreen:
-			req(reqRedraw)
-		case actUnixLineDiscard:
-			if t.cx > 0 {
-				t.yanked = copySlice(t.input[:t.cx])
-				t.input = t.input[t.cx:]
-				t.cx = 0
-			}
-		case actUnixWordRubout:
-			if t.cx > 0 {
-				t.rubout("\\s\\S")
-			}
-		case actBackwardKillWord:
-			if t.cx > 0 {
-				t.rubout("[^[:alnum:]][[:alnum:]]")
-			}
-		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 actPageUp:
-			t.vmove(t.maxItems() - 1)
-			req(reqList)
-		case actPageDown:
-			t.vmove(-(t.maxItems() - 1))
-			req(reqList)
-		case actBackwardWord:
-			t.cx = findLastMatch("[^[:alnum:]][[:alnum:]]", string(t.input[:t.cx])) + 1
-		case actForwardWord:
-			t.cx += findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", string(t.input[t.cx:])) + 1
-		case actKillWord:
-			ncx := t.cx +
-				findFirstMatch("[[:alnum:]][^[:alnum:]]|(.$)", 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 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 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 {
-					if t.multi && me.Mod {
-						toggle()
-					}
-					t.vmove(me.S)
-					req(reqList)
-				}
-			} 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
-				}
-				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)
-					}
-				}
-			}
 		}
 		changed := string(previousInput) != string(t.input)
 		t.mutex.Unlock() // Must be unlocked before touching reqBox
@@ -1055,15 +1125,7 @@ func (t *Terminal) constrain() {
 	diffpos := t.cy - t.offset
 
 	t.cy = util.Constrain(t.cy, 0, count-1)
-
-	if t.cy > t.offset+(height-1) {
-		// Ceil
-		t.offset = t.cy - (height - 1)
-	} else if t.offset > t.cy {
-		// Floor
-		t.offset = t.cy
-	}
-
+	t.offset = util.Constrain(t.offset, t.cy-height+1, t.cy)
 	// Adjustment
 	if count-t.offset < height {
 		t.offset = util.Max(0, count-height)

src/tokenizer.go

@@ -20,6 +20,7 @@ type Range struct {
 type Token struct {
 	text         []rune
 	prefixLength int
+	trimLength   int
 }
 
 // Delimiter for tokenizing the input
@@ -81,7 +82,7 @@ func withPrefixLengths(tokens [][]rune, 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
-		ret[idx] = Token{text: token, prefixLength: prefixLength}
+		ret[idx] = Token{token, prefixLength, util.TrimLen(token)}
 		prefixLength += len(token)
 	}
 	return ret
@@ -233,7 +234,7 @@ func Transform(tokens []Token, withNth []Range) []Token {
 		} else {
 			prefixLength = 0
 		}
-		transTokens[idx] = Token{part, prefixLength}
+		transTokens[idx] = Token{part, prefixLength, util.TrimLen(part)}
 	}
 	return transTokens
 }

src/tokenizer_test.go

@@ -44,22 +44,22 @@ func TestTokenize(t *testing.T) {
 	// AWK-style
 	input := "  abc:  def:  ghi  "
 	tokens := Tokenize([]rune(input), Delimiter{})
-	if string(tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 {
+	if string(tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 || tokens[0].trimLength != 4 {
 		t.Errorf("%s", tokens)
 	}
 
 	// With delimiter
 	tokens = Tokenize([]rune(input), delimiterRegexp(":"))
-	if string(tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 {
+	if string(tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 || tokens[0].trimLength != 4 {
 		t.Errorf("%s", tokens)
 	}
 
 	// With delimiter regex
 	tokens = Tokenize([]rune(input), delimiterRegexp("\\s+"))
-	if string(tokens[0].text) != "  " || tokens[0].prefixLength != 0 ||
-		string(tokens[1].text) != "abc:  " || tokens[1].prefixLength != 2 ||
-		string(tokens[2].text) != "def:  " || tokens[2].prefixLength != 8 ||
-		string(tokens[3].text) != "ghi  " || tokens[3].prefixLength != 14 {
+	if string(tokens[0].text) != "  " || tokens[0].prefixLength != 0 || tokens[0].trimLength != 0 ||
+		string(tokens[1].text) != "abc:  " || tokens[1].prefixLength != 2 || tokens[1].trimLength != 4 ||
+		string(tokens[2].text) != "def:  " || tokens[2].prefixLength != 8 || tokens[2].trimLength != 4 ||
+		string(tokens[3].text) != "ghi  " || tokens[3].prefixLength != 14 || tokens[3].trimLength != 3 {
 		t.Errorf("%s", tokens)
 	}
 }

src/util/util.go

@@ -5,6 +5,7 @@ import "C"
 
 import (
 	"os"
+	"os/exec"
 	"time"
 	"unicode/utf8"
 )
@@ -20,6 +21,14 @@ func Max(first int, items ...int) int {
 	return max
 }
 
+// Min returns the smallest integer
+func Min(first int, second int) int {
+	if first <= second {
+		return first
+	}
+	return second
+}
+
 // Min32 returns the smallest 32-bit integer
 func Min32(first int32, second int32) int32 {
 	if first <= second {
@@ -75,6 +84,7 @@ func IsTty() bool {
 	return int(C.isatty(C.int(os.Stdin.Fd()))) != 0
 }
 
+// TrimRight returns rune array with trailing white spaces cut off
 func TrimRight(runes []rune) []rune {
 	var i int
 	for i = len(runes) - 1; i >= 0; i-- {
@@ -86,6 +96,7 @@ func TrimRight(runes []rune) []rune {
 	return runes[0 : i+1]
 }
 
+// BytesToRunes converts byte array into rune array
 func BytesToRunes(bytea []byte) []rune {
 	runes := make([]rune, 0, len(bytea))
 	for i := 0; i < len(bytea); {
@@ -100,3 +111,36 @@ func BytesToRunes(bytea []byte) []rune {
 	}
 	return runes
 }
+
+// TrimLen returns the length of trimmed rune array
+func TrimLen(runes []rune) int {
+	var i int
+	for i = len(runes) - 1; i >= 0; i-- {
+		char := runes[i]
+		if char != ' ' && char != '\t' {
+			break
+		}
+	}
+	// Completely empty
+	if i < 0 {
+		return 0
+	}
+
+	var j int
+	for j = 0; j < len(runes); j++ {
+		char := runes[j]
+		if char != ' ' && char != '\t' {
+			break
+		}
+	}
+	return i - j + 1
+}
+
+// ExecCommand executes the given command with $SHELL
+func ExecCommand(command string) *exec.Cmd {
+	shell := os.Getenv("SHELL")
+	if len(shell) == 0 {
+		shell = "sh"
+	}
+	return exec.Command(shell, "-c", command)
+}

src/util/util_test.go

@@ -20,3 +20,23 @@ func TestContrain(t *testing.T) {
 		t.Error("Expected", 3)
 	}
 }
+
+func TestTrimLen(t *testing.T) {
+	check := func(str string, exp int) {
+		trimmed := TrimLen([]rune(str))
+		if trimmed != exp {
+			t.Errorf("Invalid TrimLen result for '%s': %d (expected %d)",
+				str, trimmed, exp)
+		}
+	}
+	check("hello", 5)
+	check("hello ", 5)
+	check("hello  ", 5)
+	check(" hello", 5)
+	check("  hello", 5)
+	check(" hello ", 5)
+	check("  hello  ", 5)
+	check("h   o", 5)
+	check("  h   o  ", 5)
+	check("         ", 0)
+}

test/fzf.vader

@@ -1,6 +1,7 @@
 Execute (Setup):
   let g:dir = fnamemodify(g:vader_file, ':p:h')
   Log 'Test directory: ' . g:dir
+  Save &acd
 
 Execute (fzf#run with dir option):
   let cwd = getcwd()
@@ -35,6 +36,34 @@ Execute (fzf#run with string source):
   let result = sort(fzf#run({ 'source': 'echo hi', 'options': '-f i' }))
   AssertEqual ['hi'], result
 
+Execute (fzf#run with dir option and noautochdir):
+  set noacd
+  let cwd = getcwd()
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
+  " No change in working directory
+  AssertEqual cwd, getcwd()
+
+Execute (Incomplete fzf#run with dir option and autochdir):
+  set acd
+  let cwd = getcwd()
+  call fzf#run({'source': [], 'sink': 'e', 'dir': '/tmp', 'options': '-0'})
+  " No change in working directory even if &acd is set
+  AssertEqual cwd, getcwd()
+
+Execute (fzf#run with dir option and autochdir):
+  set acd
+  let cwd = getcwd()
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
+  " Working directory changed due to &acd
+  AssertEqual '/', getcwd()
+
+Execute (fzf#run with dir option and autochdir when final cwd is same as dir):
+  set acd
+  cd /tmp
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/', 'options': '-1'})
+  " Working directory changed due to &acd
+  AssertEqual '/', getcwd()
+
 Execute (Cleanup):
   unlet g:dir
   Restore

test/test_go.rb

@@ -6,9 +6,10 @@ require 'fileutils'
 
 DEFAULT_TIMEOUT = 20
 
+FILE = File.expand_path(__FILE__)
 base = File.expand_path('../../', __FILE__)
 Dir.chdir base
-FZF = "#{base}/bin/fzf"
+FZF = "FZF_DEFAULT_OPTS= FZF_DEFAULT_COMMAND= #{base}/bin/fzf"
 
 class NilClass
   def include? str
@@ -142,8 +143,10 @@ class TestBase < Minitest::Test
   attr_reader :tmux
 
   def tempname
+    @temp_suffix ||= 0
     [TEMPNAME,
-     caller_locations.map(&:label).find { |l| l =~ /^test_/ }].join '-'
+     caller_locations.map(&:label).find { |l| l =~ /^test_/ },
+     @temp_suffix].join '-'
   end
 
   def setup
@@ -157,6 +160,7 @@ class TestBase < Minitest::Test
     File.read(tempname)
   ensure
     File.unlink tempname while File.exists?(tempname)
+    @temp_suffix += 1
     tmux.prepare
   end
 
@@ -203,17 +207,17 @@ class TestGoFZF < TestBase
     tmux.send_keys '99', 'C-a', '1', 'C-f', '3', 'C-b', 'C-h', 'C-u', 'C-e', 'C-y', 'C-k', 'Tab', 'BTab'
     tmux.until { |lines| lines[-2] == '  856/100000' }
     lines = tmux.capture
-    assert_equal '> 1391',       lines[-4]
+    assert_equal '> 3910',       lines[-4]
     assert_equal '  391',        lines[-3]
     assert_equal '  856/100000', lines[-2]
     assert_equal '> 391',        lines[-1]
 
     tmux.send_keys :Enter
-    assert_equal '1391', readonce.chomp
+    assert_equal '3910', readonce.chomp
   end
 
   def test_fzf_default_command
-    tmux.send_keys "FZF_DEFAULT_COMMAND='echo hello' #{fzf}", :Enter
+    tmux.send_keys fzf.sub('FZF_DEFAULT_COMMAND=', "FZF_DEFAULT_COMMAND='echo hello'"), :Enter
     tmux.until { |lines| lines.last =~ /^>/ }
 
     tmux.send_keys :Enter
@@ -353,7 +357,7 @@ class TestGoFZF < TestBase
       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($/)
+      assert_equal ['5', '5', '50', '51'], readonce.split($/)
     end
   end
 
@@ -374,7 +378,7 @@ class TestGoFZF < TestBase
     tmux.send_keys :Enter
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 'C-K', :Enter
-    assert_equal ['1919'], readonce.split($/)
+    assert_equal ['9090'], readonce.split($/)
   end
 
   def test_tac
@@ -390,6 +394,7 @@ 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.until { |lines| lines[-2].include? '28/1000' }
     tmux.send_keys :BTab, :BTab, :BTab
     tmux.until { |lines| lines[-2].include?('(3)') }
     tmux.send_keys :Enter
@@ -409,11 +414,12 @@ class TestGoFZF < TestBase
 
   def test_expect
     test = lambda do |key, feed, expected = key|
-      tmux.send_keys "seq 1 100 | #{fzf :expect, key}", :Enter
+      tmux.send_keys "seq 1 100 | #{fzf :expect, key}; sync", :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
+      tmux.prepare
       assert_equal [expected, '55'], readonce.split($/)
     end
     test.call 'ctrl-t', 'C-T'
@@ -458,8 +464,8 @@ class TestGoFZF < TestBase
 
   def test_unicode_case
     writelines tempname, %w[строКА1 СТРОКА2 строка3 Строка4]
-    assert_equal %w[СТРОКА2 Строка4], `cat #{tempname} | #{FZF} -fС`.split($/)
-    assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `cat #{tempname} | #{FZF} -fс`.split($/)
+    assert_equal %w[СТРОКА2 Строка4], `#{FZF} -fС < #{tempname}`.split($/)
+    assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `#{FZF} -fс < #{tempname}`.split($/)
   end
 
   def test_tiebreak
@@ -471,7 +477,7 @@ class TestGoFZF < TestBase
     ]
     writelines tempname, input
 
-    assert_equal input, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=index`.split($/)
+    assert_equal input, `#{FZF} -ffoobar --tiebreak=index < #{tempname}`.split($/)
 
     by_length = %w[
       ----foobar--
@@ -479,8 +485,8 @@ class TestGoFZF < TestBase
       -------foobar-
       --foobar--------
     ]
-    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar`.split($/)
-    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=length`.split($/)
+    assert_equal by_length, `#{FZF} -ffoobar < #{tempname}`.split($/)
+    assert_equal by_length, `#{FZF} -ffoobar --tiebreak=length < #{tempname}`.split($/)
 
     by_begin = %w[
       --foobar--------
@@ -488,17 +494,175 @@ class TestGoFZF < TestBase
       -----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 by_begin, `#{FZF} -ffoobar --tiebreak=begin < #{tempname}`.split($/)
+    assert_equal by_begin, `#{FZF} -f"!z foobar" -x --tiebreak begin < #{tempname}`.split($/)
 
     assert_equal %w[
       -------foobar-
       ----foobar--
       -----foobar---
       --foobar--------
-    ], `cat #{tempname} | #{FZF} -ffoobar --tiebreak end`.split($/)
+    ], `#{FZF} -ffoobar --tiebreak end < #{tempname}`.split($/)
 
-    assert_equal input, `cat #{tempname} | #{FZF} -f"!z" -x --tiebreak end`.split($/)
+    assert_equal input, `#{FZF} -f"!z" -x --tiebreak end < #{tempname}`.split($/)
+  end
+
+  # Since 0.11.2
+  def test_tiebreak_list
+    input = %w[
+      f-o-o-b-a-r
+      foobar----
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar
+    ]
+    writelines tempname, input
+
+    assert_equal %w[
+      foobar----
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=index < #{tempname}`.split($/)
+
+    by_length = %w[
+      foobar
+      --foobar
+      foobar--
+      foobar----
+      ----foobar
+      --foobar--
+      f-o-o-b-a-r
+    ]
+    assert_equal by_length, `#{FZF} -ffb < #{tempname}`.split($/)
+    assert_equal by_length, `#{FZF} -ffb --tiebreak=length < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar
+      foobar--
+      --foobar
+      foobar----
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=length,begin < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar
+      --foobar
+      foobar--
+      ----foobar
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=length,end < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar----
+      foobar--
+      foobar
+      --foobar
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=begin < #{tempname}`.split($/)
+
+    by_begin_end = %w[
+      foobar
+      foobar--
+      foobar----
+      --foobar
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ]
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=begin,length < #{tempname}`.split($/)
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=begin,end < #{tempname}`.split($/)
+
+    assert_equal %w[
+      --foobar
+      ----foobar
+      foobar
+      foobar--
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=end < #{tempname}`.split($/)
+
+    by_begin_end = %w[
+      foobar
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ]
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=end,begin < #{tempname}`.split($/)
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=end,length < #{tempname}`.split($/)
+  end
+
+  def test_tiebreak_white_prefix
+    writelines tempname, [
+      'f o o b a r',
+      '    foo bar',
+      '    foobar',
+      '----foo bar',
+      '----foobar',
+      '  foo bar',
+      '  foobar--',
+      '  foobar',
+      '--foo bar',
+      '--foobar',
+      'foobar',
+    ]
+
+    assert_equal [
+      '    foobar',
+      '  foobar',
+      'foobar',
+      '  foobar--',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb < #{tempname}`.split($/)
+
+    assert_equal [
+      '    foobar',
+      '  foobar--',
+      '  foobar',
+      'foobar',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb --tiebreak=begin < #{tempname}`.split($/)
+
+    assert_equal [
+      '    foobar',
+      '  foobar',
+      'foobar',
+      '  foobar--',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb --tiebreak=begin,length < #{tempname}`.split($/)
   end
 
   def test_tiebreak_length_with_nth
@@ -516,7 +680,7 @@ class TestGoFZF < TestBase
       123:hello
       1234567:h
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fh`.split($/)
+    assert_equal output, `#{FZF} -fh < #{tempname}`.split($/)
 
     output = %w[
       1234567:h
@@ -524,7 +688,65 @@ class TestGoFZF < TestBase
       1:hell
       123:hello
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fh -n2 -d:`.split($/)
+    assert_equal output, `#{FZF} -fh -n2 -d: < #{tempname}`.split($/)
+  end
+
+  def test_tiebreak_length_with_nth_trim_length
+    input = [
+      "apple juice   bottle 1",
+      "apple  ui     bottle 2",
+      "app     ice   bottle 3",
+      "app     ic    bottle 4",
+    ]
+    writelines tempname, input
+
+    # len(1)
+    output = [
+      "app     ice   bottle 3",
+      "app     ic    bottle 4",
+      "apple juice   bottle 1",
+      "apple  ui     bottle 2",
+    ]
+    assert_equal output, `#{FZF} -fa -n1 < #{tempname}`.split($/)
+
+    # len(1 ~ 2)
+    output = [
+      "app     ic    bottle 4",
+      "app     ice   bottle 3",
+      "apple  ui     bottle 2",
+      "apple juice   bottle 1",
+    ]
+    assert_equal output, `#{FZF} -fai -n1..2 < #{tempname}`.split($/)
+
+    # len(1) + len(2)
+    output = [
+      "app     ic    bottle 4",
+      "app     ice   bottle 3",
+      "apple  ui     bottle 2",
+      "apple juice   bottle 1",
+    ]
+    assert_equal output, `#{FZF} -x -f"a i" -n1,2 < #{tempname}`.split($/)
+
+    # len(2)
+    output = [
+      "app     ic    bottle 4",
+      "app     ice   bottle 3",
+      "apple  ui     bottle 2",
+      "apple juice   bottle 1",
+    ]
+    assert_equal output, `#{FZF} -fi -n2 < #{tempname}`.split($/)
+    assert_equal output, `#{FZF} -fi -n2,1..2 < #{tempname}`.split($/)
+  end
+
+  def test_tiebreak_end_backward_scan
+    input = %w[
+      foobar-fb
+      fubar
+    ]
+    writelines tempname, input
+
+    assert_equal input.reverse, `#{FZF} -f fb < #{tempname}`.split($/)
+    assert_equal input, `#{FZF} -f fb --tiebreak=end < #{tempname}`.split($/)
   end
 
   def test_invalid_cache
@@ -554,7 +776,7 @@ class TestGoFZF < TestBase
     File.open(tempname, 'w') do |f|
       f << data
     end
-    assert_equal data, `cat #{tempname} | #{FZF} -f .`.chomp
+    assert_equal data, `#{FZF} -f . < #{tempname}`.chomp
   end
 
   def test_read0
@@ -655,6 +877,46 @@ class TestGoFZF < TestBase
     File.unlink output rescue nil
   end
 
+  def test_execute_multi
+    output = '/tmp/fzf-test-execute-multi'
+    opts = %[--multi --bind \\"alt-a:execute-multi(echo '[{}], @{}@' >> #{output}; sync)\\"]
+    tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/100' }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/100' }
+    tmux.send_keys :Tab, :Tab
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/100' }
+    tmux.send_keys :Enter
+    tmux.prepare
+    readonce
+    assert_equal ['["1"], @"1"@', '["1" "2" "3"], @"1" "2" "3"@', '["1" "2" "4"], @"1" "2" "4"@'],
+      File.readlines(output).map(&:chomp)
+  ensure
+    File.unlink output rescue nil
+  end
+
+  def test_execute_shell
+    # Custom script to use as $SHELL
+    output = tempname + '.out'
+    File.unlink output rescue nil
+    writelines tempname, ['#!/usr/bin/env bash', "echo $1 / $2 > #{output}", "sync"]
+    system "chmod +x #{tempname}"
+
+    tmux.send_keys "echo foo | SHELL=#{tempname} fzf --bind 'enter:execute:{}bar'", :Enter
+    tmux.until { |lines| lines[-2].include? '1/1' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-2].include? '1/1' }
+    tmux.send_keys 'C-c'
+    tmux.prepare
+    assert_equal ['-c / "foo"bar'], 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' }
@@ -681,12 +943,12 @@ class TestGoFZF < TestBase
         lines[-2].include?('/90') &&
         lines[-3]  == '  1' &&
         lines[-4]  == '  2' &&
-        lines[-13] == '> 15'
+        lines[-13] == '> 50'
       end
       tmux.send_keys :Down
     end
     tmux.send_keys :Enter
-    assert_equal '15', readonce.chomp
+    assert_equal '50', readonce.chomp
   end
 
   def test_header_lines_reverse
@@ -696,12 +958,12 @@ class TestGoFZF < TestBase
         lines[1].include?('/90') &&
         lines[2]  == '  1' &&
         lines[3]  == '  2' &&
-        lines[12] == '> 15'
+        lines[12] == '> 50'
       end
       tmux.send_keys :Up
     end
     tmux.send_keys :Enter
-    assert_equal '15', readonce.chomp
+    assert_equal '50', readonce.chomp
   end
 
   def test_header_lines_overflow
@@ -726,24 +988,44 @@ class TestGoFZF < TestBase
     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)
+  def test_header
+    tmux.send_keys "seq 100 | #{fzf "--header \\\"\\$(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)
+  def test_header_reverse
+    tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(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_header_and_header_lines
+    tmux.send_keys "seq 100 | #{fzf "--header-lines 10 --header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[-2].include?('90/90') &&
+      lines[-7...-2].map(&:strip) == header &&
+      lines[-17...-7].map(&:strip) == (1..10).map(&:to_s).reverse
+    end
+  end
+
+  def test_header_and_header_lines_reverse
+    tmux.send_keys "seq 100 | #{fzf "--reverse --header-lines 10 --header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[1].include?('90/90') &&
+      lines[2...7].map(&:strip) == header &&
+      lines[7...17].map(&:strip) == (1..10).map(&:to_s)
+    end
+  end
+
   def test_canel
     tmux.send_keys "seq 10 | #{fzf "--bind 2:cancel"}", :Enter
     tmux.until { |lines| lines[-2].include?('10/10') }
@@ -769,15 +1051,116 @@ class TestGoFZF < TestBase
     tmux.send_keys :Enter
   end
 
+  def test_tabstop
+    writelines tempname, ["f\too\tba\tr\tbaz\tbarfooq\tux"]
+    {
+      1 => '> f oo ba r baz barfooq ux',
+      2 => '> f oo  ba  r baz barfooq ux',
+      3 => '> f  oo ba r  baz   barfooq  ux',
+      4 => '> f   oo  ba  r   baz barfooq ux',
+      5 => '> f    oo   ba   r    baz  barfooq   ux',
+      6 => '> f     oo    ba    r     baz   barfooq     ux',
+      7 => '> f      oo     ba     r      baz    barfooq       ux',
+      8 => '> f       oo      ba      r       baz     barfooq ux',
+      9 => '> f        oo       ba       r        baz      barfooq  ux',
+    }.each do |ts, exp|
+      tmux.prepare
+      tmux.send_keys %[cat #{tempname} | fzf --tabstop=#{ts}], :Enter
+      tmux.until { |lines| exp.start_with? lines[-3].to_s.strip.sub(/\.\.$/, '') }
+      tmux.send_keys :Enter
+    end
+  end
+
+  def test_with_nth
+    writelines tempname, ['hello world ', 'byebye']
+    assert_equal 'hello world ', `#{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 < #{tempname}`.chomp
+  end
+
+  def test_with_nth_ansi
+    writelines tempname, ["\x1b[33mhello \x1b[34;1mworld\x1b[m ", 'byebye']
+    assert_equal 'hello world ', `#{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 --ansi < #{tempname}`.chomp
+  end
+
+  def test_with_nth_no_ansi
+    src = "\x1b[33mhello \x1b[34;1mworld\x1b[m "
+    writelines tempname, [src, 'byebye']
+    assert_equal src, `#{FZF} -fhehe -x -n 2.. --with-nth 2,1,1 --no-ansi < #{tempname}`.chomp
+  end
+
+  def test_exit_0_exit_code
+    `echo foo | #{FZF} -q bar -0`
+    assert_equal 1, $?.exitstatus
+  end
+
   def test_invalid_term
-    tmux.send_keys "TERM=xxx fzf", :Enter
-    tmux.until { |lines| lines.any? { |l| l.include? 'Invalid $TERM: xxx' } }
+    lines = `TERM=xxx #{FZF}`
+    assert_equal 2, $?.exitstatus
+    assert lines.include?('Invalid $TERM: xxx')
+  end
+
+  def test_invalid_option
+    lines = `#{FZF} --foobar 2>&1`
+    assert_equal 2, $?.exitstatus
+    assert lines.include?('unknown option: --foobar'), lines
+  end
+
+  def test_filter_exitstatus
+    # filter / streaming filter
+    ["", "--no-sort"].each do |opts|
+      assert `echo foo | #{FZF} -f foo #{opts}`.include?('foo')
+      assert_equal 0, $?.exitstatus
+
+      assert `echo foo | #{FZF} -f bar #{opts}`.empty?
+      assert_equal 1, $?.exitstatus
+    end
+  end
+
+  def test_exitstatus_empty
+    { '99' => '0', '999' => '1' }.each do |query, status|
+      tmux.send_keys "seq 100 | #{FZF} -q #{query}", :Enter
+      tmux.until { |lines| lines[-2] =~ %r{ [10]/100} }
+      tmux.send_keys :Enter
+
+      tmux.send_keys 'echo --\$?--'
+      tmux.until { |lines| lines.last.include? "echo --$?--" }
+      tmux.send_keys :Enter
+      tmux.until { |lines| lines.last.include? "--#{status}--" }
+    end
+  end
+
+  def test_default_extended
+    assert_equal '100', `seq 100 | #{FZF} -f "1 00$"`.chomp
+    assert_equal '', `seq 100 | #{FZF} -f "1 00$" +x`.chomp
+  end
+
+  def test_exact
+    assert_equal 4, `seq 123 | #{FZF} -f 13`.lines.length
+    assert_equal 2, `seq 123 | #{FZF} -f 13 -e`.lines.length
+    assert_equal 4, `seq 123 | #{FZF} -f 13 +e`.lines.length
+  end
+
+  def test_or_operator
+    assert_equal %w[1 5 10], `seq 10 | #{FZF} -f "1 | 5"`.lines.map(&:chomp)
+    assert_equal %w[1 10 2 3 4 5 6 7 8 9],
+      `seq 10 | #{FZF} -f '1 | !1'`.lines.map(&:chomp)
+  end
+
+  def test_hscroll_off
+    writelines tempname, ['=' * 10000 + '0123456789']
+    [0, 3, 6].each do |off|
+      tmux.prepare
+      tmux.send_keys "#{FZF} --hscroll-off=#{off} -q 0 < #{tempname}", :Enter
+      tmux.until { |lines| lines[-3].end_with?((0..off).to_a.join + '..') }
+      tmux.send_keys '9'
+      tmux.until { |lines| lines[-3].end_with? '789' }
+      tmux.send_keys :Enter
+    end
   end
 
 private
   def writelines path, lines
     File.unlink path while File.exists? path
-    File.open(path, 'w') { |f| f << lines.join($/) }
+    File.open(path, 'w') { |f| f << lines.join($/) + $/ }
   end
 end
 
@@ -840,6 +1223,22 @@ module TestShell
     tmux.until { |lines| lines[-1].end_with?(expected) }
   end
 
+  def test_alt_c_command
+    set_var 'FZF_ALT_C_COMMAND', 'echo /tmp'
+
+    tmux.prepare
+    tmux.send_keys 'cd /', :Enter
+
+    tmux.prepare
+    tmux.send_keys :Escape, :c, pane: 0
+    lines = tmux.until(1) { |lines| lines.item_count == 1 }
+    tmux.send_keys :Enter, pane: 1
+
+    tmux.prepare
+    tmux.send_keys :pwd, :Enter
+    tmux.until { |lines| lines[-1].end_with? '/tmp' }
+  end
+
   def test_ctrl_r
     tmux.prepare
     tmux.send_keys 'echo 1st', :Enter; tmux.prepare
@@ -869,6 +1268,8 @@ module CompletionTest
     tmux.prepare
     tmux.send_keys 'cat /tmp/fzf-test/10**', :Tab, pane: 0
     tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys ' !d'
+    tmux.until(1) { |lines| lines[-2].include?(' 2/') }
     tmux.send_keys :BTab, :BTab
     tmux.until(1) { |lines| lines[-2].include?('(2)') }
     tmux.send_keys :Enter
@@ -904,17 +1305,34 @@ module CompletionTest
     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.send_keys 'C-K', :Enter
     tmux.until do |lines|
       tmux.send_keys 'C-L'
       lines[-1].end_with?('/tmp/fzf\ test/foobar')
     end
+
+    # Should include hidden files
+    (1..100).each { |i| FileUtils.touch "/tmp/fzf-test/.hidden-#{i}" }
+    tmux.send_keys 'C-u'
+    tmux.send_keys 'cat /tmp/fzf-test/hidden**', :Tab, pane: 0
+    tmux.until(1) do |lines|
+      tmux.send_keys 'C-L'
+      lines[-2].include?('100/') &&
+      lines[-3].include?('/tmp/fzf-test/.hidden-')
+    end
+    tmux.send_keys :Enter
   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_file_completion_root
+    tmux.send_keys 'ls /**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys :Enter
+  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
@@ -961,6 +1379,39 @@ module CompletionTest
   ensure
     Process.kill 'KILL', pid.to_i rescue nil if pid
   end
+
+  def test_custom_completion
+    tmux.send_keys '_fzf_compgen_path() { echo "\$1"; seq 10; }', :Enter
+    tmux.prepare
+    tmux.send_keys 'ls /tmp/**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count == 11 }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until(1) { |lines| lines[-2].include? '(3)' }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1] == "ls /tmp 1 2"
+    end
+  end
+
+  def test_unset_completion
+    tmux.send_keys 'export FOO=BAR', :Enter
+    tmux.prepare
+
+    # Using tmux
+    tmux.send_keys 'unset FOO**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines[-2].include? ' 1/' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1] == 'unset FOO' }
+    tmux.send_keys 'C-c'
+
+    # FZF_TMUX=0
+    new_shell
+    tmux.send_keys 'unset FOO**', :Tab
+    tmux.until { |lines| lines[-2].include? ' 1/' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1] == 'unset FOO' }
+  end
 end
 
 class TestBash < TestBase