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Merge branch 'master' of https://github.com/junegunn/fzf

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This commit is contained in:
Austen Adler 2015-09-18 17:23:14 +00:00
commit 7927015a56
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.gitignore vendored
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bin
src/fzf/fzf_*
pkg
Gemfile.lock
.DS_Store

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.travis.yml
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language: ruby
sudo: false
rvm:
- "1.8.7"
- "1.9.3"
- "2.0.0"
- "2.1.1"
- 2.2.0
install: gem install curses minitest
install:
- sudo apt-get update
- sudo apt-get install -y libncurses-dev lib32ncurses5-dev
- sudo add-apt-repository -y ppa:pi-rho/dev
- sudo apt-add-repository -y ppa:fish-shell/release-2
- sudo apt-get update
- sudo apt-get install -y tmux=1.9a-1~ppa1~p
- sudo apt-get install -y zsh fish
script: |
export GOPATH=~/go
export FZF_BASE=$GOPATH/src/github.com/junegunn/fzf
mkdir -p $GOPATH/src/github.com/junegunn
ln -s $(pwd) $FZF_BASE
cd $FZF_BASE/src && make test fzf/fzf-linux_amd64 install &&
cd $FZF_BASE/bin && ln -sf fzf-linux_amd64 fzf-$(./fzf --version)-linux_amd64 &&
cd $FZF_BASE && yes | ./install && rm -f fzf &&
tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]

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CHANGELOG
=========
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/Interrupted
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
------
- Fixed slow performance of `--with-nth` when used with `--delimiter`
- Regular expression engine of Golang as of now is very slow, so the fixed
version will treat the given delimiter pattern as a plain string instead
of a regular expression unless it contains special characters and is
a valid regular expression.
- Simpler regular expression for delimiter for better performance
0.10.2
------
### Fixes and improvements
- Improvement in perceived response time of queries
- Eager, efficient rune array conversion
- Graceful exit when failed to initialize ncurses (invalid $TERM)
- Improved ranking algorithm when `--nth` option is set
- Changed the default command not to fail when there are files whose names
start with dash
0.10.1
------
### New features
- Added `--margin` option
- Added options for sticky header
- `--header-file`
- `--header-lines`
- Added `cancel` action which clears the input or closes the finder when the
input is already empty
- e.g. `export FZF_DEFAULT_OPTS="--bind esc:cancel"`
- Added `delete-char/eof` action to differentiate `CTRL-D` and `DEL`
### Minor improvements/fixes
- Fixed to allow binding colon and comma keys
- Fixed ANSI processor to handle color regions spanning multiple lines
0.10.0
------
### New features
- More actions for `--bind`
- `select-all`
- `deselect-all`
- `toggle-all`
- `ignore`
- `execute(...)` action for running arbitrary command without leaving fzf
- `fzf --bind "ctrl-m:execute(less {})"`
- `fzf --bind "ctrl-t:execute(tmux new-window -d 'vim {}')"`
- If the command contains parentheses, use any of the follows alternative
notations to avoid parse errors
- `execute[...]`
- `execute~...~`
- `execute!...!`
- `execute@...@`
- `execute#...#`
- `execute$...$`
- `execute%...%`
- `execute^...^`
- `execute&...&`
- `execute*...*`
- `execute;...;`
- `execute/.../`
- `execute|...|`
- `execute:...`
- This is the special form that frees you from parse errors as it
does not expect the closing character
- The catch is that it should be the last one in the
comma-separated list
- Added support for optional search history
- `--history HISTORY_FILE`
- When used, `CTRL-N` and `CTRL-P` are automatically remapped to
`next-history` and `previous-history`
- `--history-size MAX_ENTRIES` (default: 1000)
- Cyclic scrolling can be enabled with `--cycle`
- Fixed the bug where the spinner was not spinning on idle input stream
- e.g. `sleep 100 | fzf`
### Minor improvements/fixes
- Added synonyms for key names that can be specified for `--bind`,
`--toggle-sort`, and `--expect`
- Fixed the color of multi-select marker on the current line
- Fixed to allow `^pattern$` in extended-search mode
0.9.13
------
### New features
- Color customization with the extended `--color` option
### Bug fixes
- Fixed premature termination of Reader in the presence of a long line which
is longer than 64KB
0.9.12
------
### New features
- Added `--bind` option for custom key bindings
### Bug fixes
- Fixed to update "inline-info" immediately after terminal resize
- Fixed ANSI code offset calculation
0.9.11
------
### New features
- Added `--inline-info` option for saving screen estate (#202)
- Useful inside Neovim
- e.g. `let $FZF_DEFAULT_OPTS = $FZF_DEFAULT_OPTS.' --inline-info'`
### Bug fixes
- Invalid mutation of input on case conversion (#209)
- Smart-case for each term in extended-search mode (#208)
- Fixed double-click result when scroll offset is positive
0.9.10
------
### Improvements
- Performance optimization
- Less aggressive memoization to limit memory usage
### New features
- Added color scheme for light background: `--color=light`
0.9.9
-----
### New features
- Added `--tiebreak` option (#191)
- Added `--no-hscroll` option (#193)
- Visual indication of `--toggle-sort` (#194)
0.9.8
-----
### Bug fixes
- Fixed Unicode case handling (#186)
- Fixed to terminate on RuneError (#185)
0.9.7
-----
### New features
- Added `--toggle-sort` option (#173)
- `--toggle-sort=ctrl-r` is applied to `CTRL-R` shell extension
### Bug fixes
- Fixed to print empty line if `--expect` is set and fzf is completed by
`--select-1` or `--exit-0` (#172)
- Fixed to allow comma character as an argument to `--expect` option
0.9.6
-----
### New features
#### Added `--expect` option (#163)
If you provide a comma-separated list of keys with `--expect` option, fzf will
allow you to select the match and complete the finder when any of the keys is
pressed. Additionally, fzf will print the name of the key pressed as the first
line of the output so that your script can decide what to do next based on the
information.
```sh
fzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@
```
The updated vim plugin uses this option to implement
[ctrlp](https://github.com/kien/ctrlp.vim)-compatible key bindings.
### Bug fixes
- Fixed to ignore ANSI escape code `\e[K` (#162)
0.9.5
-----
### New features
#### Added `--ansi` option (#150)
If you give `--ansi` option to fzf, fzf will interpret ANSI color codes from
the input, display the item with the ANSI colors (true colors are not
supported), and strips the codes from the output. This option is off by
default as it entails some overhead.
### Improvements
#### Reduced initial memory footprint (#151)
By removing unnecessary copy of pointers, fzf will use significantly smaller
amount of memory when it's started. The difference is hugely noticeable when
the input is extremely large. (e.g. `locate / | fzf`)
### Bug fixes
- Fixed panic on `--no-sort --filter ''` (#149)
0.9.4
-----
### New features
#### Added `--tac` option to reverse the order of the input.
One might argue that this option is unnecessary since we can already put `tac`
or `tail -r` in the command pipeline to achieve the same result. However, the
advantage of `--tac` is that it does not block until the input is complete.
### *Backward incompatible changes*
#### Changed behavior on `--no-sort`
`--no-sort` option will no longer reverse the display order within finder. You
may want to use the new `--tac` option with `--no-sort`.
```
history | fzf +s --tac
```
### Improvements
#### `--filter` will not block when sort is disabled
When fzf works in filtering mode (`--filter`) and sort is disabled
(`--no-sort`), there's no need to block until input is complete. The new
version of fzf will print the matches on-the-fly when the following condition
is met:
--filter TERM --no-sort [--no-tac --no-sync]
or simply:
-f TERM +s
This change removes unnecessary delay in the use cases like the following:
fzf -f xxx +s | head -5
However, in this case, fzf processes the lines sequentially, so it cannot
utilize multiple cores, and fzf will run slightly slower than the previous
mode of execution where filtering is done in parallel after the entire input
is loaded. If the user is concerned about this performance problem, one can
add `--sync` option to re-enable buffering.
0.9.3
-----
### New features
- Added `--sync` option for multi-staged filtering
### Improvements
- `--select-1` and `--exit-0` will start finder immediately when the condition
cannot be met

21
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The MIT License (MIT)
Copyright (c) 2015 Junegunn Choi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

467
README.md
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fzf - Fuzzy finder for your shell
=================================
<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf)
===
fzf is a general-purpose fuzzy finder for your shell.
fzf is a general-purpose command-line fuzzy finder.
![](https://raw.github.com/junegunn/i/master/fzf.gif)
It was heavily inspired by [ctrlp.vim](https://github.com/kien/ctrlp.vim) and
the likes.
Pros
----
Requirements
------------
fzf requires Ruby (>= 1.8.5).
- No dependencies
- Blazingly fast
- e.g. `locate / | fzf`
- Flexible layout
- Runs in fullscreen or in horizontal/vertical split using tmux
- The most comprehensive feature set
- Try `fzf --help` and be surprised
- Batteries included
- Vim/Neovim plugin, key bindings and fuzzy auto-completion
Installation
------------
fzf project consists of the followings:
- `fzf` executable
- `fzf-tmux` script for launching fzf in a tmux pane
- Shell extensions
- Key bindings (`CTRL-T`, `CTRL-R`, and `ALT-C`) (bash, zsh, fish)
- Fuzzy auto-completion (bash, zsh)
- Vim/Neovim plugin
You can [download fzf executable][bin] alone, but it's recommended that you
install the extra stuff using the attached install script.
[bin]: https://github.com/junegunn/fzf-bin/releases
#### Using git (recommended)
Clone this repository and run
[install](https://github.com/junegunn/fzf/blob/master/install) script.
```sh
git clone https://github.com/junegunn/fzf.git ~/.fzf
git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
~/.fzf/install
```
In case you don't have git installed:
#### Using Homebrew
On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
```sh
mkdir -p ~/.fzf
curl -L https://github.com/junegunn/fzf/archive/master.tar.gz |
tar xz --strip-components 1 -C ~/.fzf
~/.fzf/install
brew reinstall --HEAD fzf
# Install shell extensions
/usr/local/Cellar/fzf/HEAD/install
```
The script will setup:
- `fzf` function (bash, zsh, fish)
- Key bindings (`CTRL-T`, `CTRL-R`, and `ALT-C`) (bash, zsh, fish)
- Fuzzy auto-completion (bash)
If you don't use any of the aforementioned shells, you have to manually place
fzf executable in a directory included in `$PATH`. Key bindings and
auto-completion will not be available in that case.
### Install as Vim plugin
#### Install as Vim plugin
Once you have cloned the repository, add the following line to your .vimrc.
@ -51,55 +64,26 @@ Once you have cloned the repository, add the following line to your .vimrc.
set rtp+=~/.fzf
```
Or you may use [vim-plug](https://github.com/junegunn/vim-plug) to manage fzf
inside Vim:
Or you can have [vim-plug](https://github.com/junegunn/vim-plug) manage fzf
(recommended):
```vim
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': 'yes \| ./install' }
```
#### Upgrading fzf
fzf is being actively developed and you might want to upgrade it once in a
while. Please follow the instruction below depending on the installation
method.
- git: `cd ~/.fzf && git pull && ./install`
- brew: `brew reinstall --HEAD fzf`
- vim-plug: `:PlugUpdate fzf`
Usage
-----
```
usage: fzf [options]
Search
-x, --extended Extended-search mode
-e, --extended-exact Extended-search mode (exact match)
-i Case-insensitive match (default: smart-case match)
+i Case-sensitive match
-n, --nth=N[,..] Comma-separated list of field index expressions
for limiting search scope. Each can be a non-zero
integer or a range expression ([BEGIN]..[END])
--with-nth=N[,..] Transform the item using index expressions for search
-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
Search result
-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
+s, --no-sort Do not sort the result. Keep the sequence unchanged.
Interface
-m, --multi Enable multi-select with tab/shift-tab
--no-mouse Disable mouse
+c, --no-color Disable colors
+2, --no-256 Disable 256-color
--black Use black background
--reverse Reverse orientation
--prompt=STR Input prompt (default: '> ')
Scripting
-q, --query=STR Start the finder with the given query
-1, --select-1 Automatically select the only match
-0, --exit-0 Exit immediately when there's no match
-f, --filter=STR Filter mode. Do not start interactive finder.
--print-query Print query as the first line
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 will launch curses-based finder, read the list from STDIN, and write the
selected item to STDOUT.
@ -115,34 +99,16 @@ files excluding hidden ones. (You can override the default command with
vim $(fzf)
```
If you want to preserve the exact sequence of the input, provide `--no-sort` (or
`+s`) option.
#### Using the finder
```sh
history | fzf +s
```
- `CTRL-J` / `CTRL-K` (or `CTRL-N` / `CTRL-P)` to move cursor up and down
- `Enter` key to select the item, `CTRL-C` / `CTRL-G` / `ESC` to exit
- On multi-select mode (`-m`), `TAB` and `Shift-TAB` to mark multiple items
- Emacs style key bindings
- Mouse: scroll, click, double-click; shift-click and shift-scroll on
multi-select mode
### Keys
Use CTRL-J and CTRL-K (or CTRL-N and CTRL-P) to change the selection, press
enter key to select the item. CTRL-C, CTRL-G, or ESC will terminate the finder.
The following readline key bindings should also work as expected.
- CTRL-A / CTRL-E
- CTRL-B / CTRL-F
- CTRL-H / CTRL-D
- CTRL-W / CTRL-U / CTRL-Y
- ALT-B / ALT-F
If you enable multi-select mode with `-m` option, you can select multiple items
with TAB or Shift-TAB key.
You can also use mouse. Double-click on an item to select it or shift-click (or
ctrl-click) to select multiple items. Use mouse wheel to move the cursor up and
down.
### Extended-search mode
#### Extended-search mode
With `-x` or `--extended` option, fzf will start in "extended-search mode".
@ -158,43 +124,23 @@ such as: `^music .mp3$ sbtrkt !rmx`
| `'wild` | Items that include `wild` | exact-match (quoted) |
| `!'fire` | Items that do not include `fire` | inverse-exact-match |
If you don't need fuzzy matching and do not wish to "quote" every word, start
fzf with `-e` or `--extended-exact` option.
If you don't prefer fuzzy matching and do not wish to "quote" every word,
start fzf with `-e` or `--extended-exact` option. Note that in
`--extended-exact` mode, `'`-prefix "unquotes" the term.
Useful examples
---------------
#### Environment variables
```sh
# fe [FUZZY PATTERN] - Open the selected file with the default editor
# - Bypass fuzzy finder if there's only one match (--select-1)
# - Exit if there's no match (--exit-0)
fe() {
local file
file=$(fzf --query="$1" --select-1 --exit-0)
[ -n "$file" ] && ${EDITOR:-vim} "$file"
}
- `FZF_DEFAULT_COMMAND`
- Default command to use when input is tty
- `FZF_DEFAULT_OPTS`
- Default options. e.g. `export FZF_DEFAULT_OPTS="--extended --cycle"`
# fd - cd to selected directory
fd() {
local dir
dir=$(find ${1:-*} -path '*/\.*' -prune \
-o -type d -print 2> /dev/null | fzf +m) &&
cd "$dir"
}
Examples
--------
# fh - repeat history
fh() {
eval $(([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s | sed 's/ *[0-9]* *//')
}
# fkill - kill process
fkill() {
ps -ef | sed 1d | fzf -m | awk '{print $2}' | xargs kill -${1:-9}
}
```
For more examples, see [the wiki
page](https://github.com/junegunn/fzf/wiki/examples).
Many useful examples can be found on [the wiki
page](https://github.com/junegunn/fzf/wiki/examples). Feel free to add your
own as well.
Key bindings for command line
-----------------------------
@ -202,29 +148,42 @@ Key bindings for command line
The install script will setup the following key bindings for bash, zsh, and
fish.
- `CTRL-T` - Paste the selected file path(s) into the command line
- `CTRL-R` - Paste the selected command from history into the command line
- `CTRL-T` - Paste the selected files and directories onto the command line
- Set `FZF_CTRL_T_COMMAND` to override the default command
- `CTRL-R` - Paste the selected command from history onto the command line
- Sort is disabled by default to respect chronological ordering
- Press `CTRL-R` again to toggle sort
- `ALT-C` - cd into the selected directory
If you're on a tmux session, `CTRL-T` will launch fzf in a new split-window. You
may disable this tmux integration by setting `FZF_TMUX` to 0, or change the
height of the window with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
If you're on a tmux session, fzf will start in a split pane. You may disable
this tmux integration by setting `FZF_TMUX` to 0, or change the height of the
pane with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
If you use vi mode on bash, you need to add `set -o vi` *before* `source
~/.fzf.bash` in your .bashrc, so that it correctly sets up key bindings for vi
mode.
If you want to customize the key bindings, consider editing the
installer-generated source code: `~/.fzf.bash`, `~/.fzf.zsh`, and
`~/.config/fish/functions/fzf_key_bindings.fish`.
`fzf-tmux` script
-----------------
Auto-completion
---------------
[fzf-tmux](bin/fzf-tmux) is a bash script that opens fzf in a tmux pane.
Disclaimer: *Auto-completion feature is currently experimental, it can change
over time*
```sh
# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
# (-[udlr]: up/down/left/right)
### bash
# select git branches in horizontal split below (15 lines)
git branch | fzf-tmux -d 15
# select multiple words in vertical split on the left (20% of screen width)
cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
```
It will still work even when you're not on tmux, silently ignoring `-[udlr]`
options, so you can invariably use `fzf-tmux` in your scripts.
Fuzzy completion for bash and zsh
---------------------------------
#### Files and directories
@ -293,18 +252,15 @@ export FZF_COMPLETION_TRIGGER='~~'
export FZF_COMPLETION_OPTS='+c -x'
```
### zsh
TODO :smiley:
(Pull requests are appreciated.)
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[!]`
#### `:FZF[!]`
If you have set up fzf for Vim, `:FZF` command will be added.
@ -317,113 +273,47 @@ If you have set up fzf for Vim, `:FZF` command will be added.
" With options
:FZF --no-sort -m /tmp
" Bang version starts in fullscreen instead of using tmux pane or Neovim split
:FZF!
```
Note that the environment variables `FZF_DEFAULT_COMMAND` and `FZF_DEFAULT_OPTS`
also apply here.
Similarly to [ctrlp.vim](https://github.com/kien/ctrlp.vim), use enter key,
`CTRL-T`, `CTRL-X` or `CTRL-V` to open selected files in the current window,
in new tabs, in horizontal splits, or in vertical splits respectively.
If you're on a tmux session, `:FZF` will launch fzf in a new split-window whose
height can be adjusted with `g:fzf_tmux_height` (default: '40%'). However, the
bang version (`:FZF!`) will always start in fullscreen.
Note that the environment variables `FZF_DEFAULT_COMMAND` and
`FZF_DEFAULT_OPTS` also apply here. Refer to [the wiki page][fzf-config] for
customization.
In GVim, you need an external terminal emulator to start fzf with. `xterm`
command is used by default, but you can customize it with `g:fzf_launcher`.
[fzf-config]: https://github.com/junegunn/fzf/wiki/Configuring-FZF-command-(vim)
```vim
" This is the default. %s is replaced with fzf command
let g:fzf_launcher = 'xterm -e bash -ic %s'
#### `fzf#run([options])`
" Use urxvt instead
let g:fzf_launcher = 'urxvt -geometry 120x30 -e sh -c %s'
```
If you're running MacVim on OSX, I recommend you to use iTerm2 as the launcher.
Refer to the [this wiki
page](https://github.com/junegunn/fzf/wiki/fzf-with-MacVim-and-iTerm2) to see
how to set up.
### `fzf#run([options])`
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 |
| --------------- | ------------- | ------------------------------------------------------------------ |
| -------------------------- | ------------- | ---------------------------------------------------------------- |
| `source` | string | External command to generate input to fzf (e.g. `find .`) |
| `source` | list | Vim list as input to fzf |
| `sink` | string | Vim command to handle the selected item (e.g. `e`, `tabe`) |
| `sink` | funcref | Reference to function to process each selected item |
| `sink*` | funcref | Similar to `sink`, but takes the list of output lines at once |
| `options` | string | Options to fzf |
| `dir` | string | Working directory |
| `tmux_width` | number/string | Use tmux vertical split with the given height (e.g. `20`, `50%`) |
| `tmux_height` | number/string | Use tmux horizontal split with the given height (e.g. `20`, `50%`) |
| `launcher` | string | External terminal emulator to start fzf with (Only used in GVim) |
| `up`/`down`/`left`/`right` | number/string | Use tmux pane with the given size (e.g. `20`, `50%`) |
| `window` (*Neovim only*) | string | Command to open fzf window (e.g. `vertical aboveleft 30new`) |
| `launcher` | string | External terminal emulator to start fzf with (GVim only) |
| `launcher` | funcref | Function for generating `launcher` string (GVim only) |
#### Examples
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'), '\\..\\{-}$', '', '')"),
\ 'sink': 'colo',
\ 'options': '+m',
\ 'tmux_width': 20,
\ 'launcher': 'xterm -geometry 20x30 -e bash -ic %s'
\ })<CR>
```
`sink` option can be a function reference. The following example creates a
handy mapping that selects an open buffer.
```vim
" List of buffers
function! BufList()
redir => ls
silent ls
redir END
return split(ls, '\n')
endfunction
function! BufOpen(e)
execute 'buffer '. matchstr(a:e, '^[ 0-9]*')
endfunction
nnoremap <silent> <Leader><Enter> :call fzf#run({
\ 'source': reverse(BufList()),
\ 'sink': function('BufOpen'),
\ 'options': '+m',
\ 'tmux_height': '40%'
\ })<CR>
```
### Articles
- [fzf+vim+tmux](http://junegunn.kr/2014/04/fzf+vim+tmux)
Examples can be found on [the wiki
page](https://github.com/junegunn/fzf/wiki/Examples-(vim)).
Tips
----
### Rendering issues
#### Rendering issues
If you have any rendering issues, check the followings:
@ -432,27 +322,12 @@ If you have any rendering issues, check the followings:
2. If you're on screen or tmux, `$TERM` should be either `screen` or
`screen-256color`
3. Some terminal emulators (e.g. mintty) have problem displaying default
background color and make some text unable to read. In that case, try `--black`
option. And if it solves your problem, I recommend including it in
`FZF_DEFAULT_OPTS` for further convenience.
background color and make some text unable to read. In that case, try
`--black` option. And if it solves your problem, I recommend including it
in `FZF_DEFAULT_OPTS` for further convenience.
4. If you still have problem, try `--no-256` option or even `--no-color`.
5. Ruby 1.9 or above is required for correctly displaying unicode characters.
### Ranking algorithm
fzf sorts the result first by the length of the matched substring, then by the
length of the whole string. However it only does so when the number of matches
is less than the limit which is by default 1000, in order to avoid the cost of
sorting a large list and limit the response time of the query.
This limit can be adjusted with `-s` option, or with the environment variable
`FZF_DEFAULT_OPTS`.
```sh
export FZF_DEFAULT_OPTS="--sort 20000"
```
### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
#### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
[ag](https://github.com/ggreer/the_silver_searcher) or
[pt](https://github.com/monochromegane/the_platinum_searcher) will do the
@ -467,62 +342,23 @@ export FZF_DEFAULT_COMMAND='ag -l -g ""'
# Now fzf (w/o pipe) will use ag instead of find
fzf
# To apply the command to CTRL-T as well
export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
```
### `git ls-tree` for fast traversal
#### `git ls-tree` for fast traversal
If you're running fzf in a large git repository, `git ls-tree` can boost up the
speed of the traversal.
```sh
# Copy the original fzf function to __fzf
declare -f __fzf > /dev/null ||
eval "$(echo "__fzf() {"; declare -f fzf | \grep -v '^{' | tail -n +2)"
# Use git ls-tree when possible
fzf() {
if [ -n "$(git rev-parse HEAD 2> /dev/null)" ]; then
FZF_DEFAULT_COMMAND="git ls-tree -r --name-only HEAD" __fzf "$@"
else
__fzf "$@"
fi
}
export FZF_DEFAULT_COMMAND='
(git ls-tree -r --name-only HEAD ||
find * -name ".*" -prune -o -type f -print -o -type l -print) 2> /dev/null'
```
### Using fzf with tmux splits
It isn't too hard to write your own fzf-tmux combo like the default
CTRL-T key binding. (Or is it?)
```sh
# This is a helper function that splits the current pane to start the given
# command ($1) and sends its output back to the original pane with any number of
# optional keys (shift; $*).
fzf_tmux_helper() {
[ -n "$TMUX_PANE" ] || return
local cmd=$1
shift
tmux split-window -p 40 \
"bash -c \"\$(tmux send-keys -t $TMUX_PANE \"\$(source ~/.fzf.bash; $cmd)\" $*)\""
}
# This is the function we are going to run in the split pane.
# - "find" to list the directories
# - "sed" will escape spaces in the paths.
# - "paste" will join the selected paths into a single line
fzf_tmux_dir() {
fzf_tmux_helper \
'find * -path "*/\.*" -prune -o -type d -print 2> /dev/null |
fzf --multi |
sed "s/ /\\\\ /g" |
paste -sd" " -' Space
}
# Bind CTRL-X-CTRL-D to fzf_tmux_dir
bind '"\C-x\C-d": "$(fzf_tmux_dir)\e\C-e"'
```
### Fish shell
#### Fish shell
It's [a known bug of fish](https://github.com/fish-shell/fish-shell/issues/1362)
that it doesn't allow reading from STDIN in command substitution, which means
@ -530,42 +366,15 @@ simple `vim (fzf)` won't work as expected. The workaround is to store the result
of fzf to a temporary file.
```sh
function vimf
if fzf > $TMPDIR/fzf.result
vim (cat $TMPDIR/fzf.result)
end
end
function fe
set tmp $TMPDIR/fzf.result
fzf --query="$argv[1]" --select-1 --exit-0 > $tmp
if [ (cat $tmp | wc -l) -gt 0 ]
vim (cat $tmp)
end
end
```
### Windows
fzf works on [Cygwin](http://www.cygwin.com/) and
[MSYS2](http://sourceforge.net/projects/msys2/). You may need to use `--black`
option on MSYS2 to avoid rendering issues.
### 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
fzf > $TMPDIR/fzf.result; and vim (cat $TMPDIR/fzf.result)
```
License
-------
MIT
[MIT](LICENSE)
Author
------
Junegunn Choi

9
Rakefile
View File

@ -1,9 +0,0 @@
require "bundler/gem_tasks"
require 'rake/testtask'
Rake::TestTask.new(:test) do |test|
test.pattern = 'test/**/test_*.rb'
test.verbose = true
end
task :default => :test

138
bin/fzf-tmux Executable file
View File

@ -0,0 +1,138 @@
#!/usr/bin/env bash
# fzf-tmux: starts fzf in a tmux pane
# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
args=()
opt=""
skip=""
swap=""
close=""
term=""
while [ $# -gt 0 ]; do
arg="$1"
case "$arg" in
-)
term=1
;;
-w*|-h*|-d*|-u*|-r*|-l*)
if [ -n "$skip" ]; then
args+=("$1")
shift
continue
fi
if [[ "$arg" =~ ^.[lrw] ]]; then
opt="-h"
if [[ "$arg" =~ ^.l ]]; then
opt="$opt -d"
swap="; swap-pane -D ; select-pane -L"
close="; tmux swap-pane -D"
fi
else
opt=""
if [[ "$arg" =~ ^.u ]]; then
opt="$opt -d"
swap="; swap-pane -D ; select-pane -U"
close="; tmux swap-pane -D"
fi
fi
if [ ${#arg} -gt 2 ]; then
size="${arg:2}"
else
shift
if [[ "$1" =~ ^[0-9]+%?$ ]]; then
size="$1"
else
[ -n "$1" -a "$1" != "--" ] && args+=("$1")
shift
continue
fi
fi
if [[ "$size" =~ %$ ]]; then
size=${size:0:((${#size}-1))}
if [ -n "$swap" ]; then
opt="$opt -p $(( 100 - size ))"
else
opt="$opt -p $size"
fi
else
if [ -n "$swap" ]; then
if [[ "$arg" =~ ^.l ]]; then
[ -n "$COLUMNS" ] && max=$COLUMNS || max=$(tput cols)
else
[ -n "$LINES" ] && max=$LINES || max=$(tput lines)
fi
size=$(( max - size ))
[ $size -lt 0 ] && size=0
opt="$opt -l $size"
else
opt="$opt -l $size"
fi
fi
;;
--)
# "--" can be used to separate fzf-tmux options from fzf options to
# avoid conflicts
skip=1
;;
*)
args+=("$1")
;;
esac
shift
done
if [ -z "$TMUX_PANE" ] || tmux list-panes -F '#F' | grep -q Z; then
fzf "${args[@]}"
exit $?
fi
set -e
# Clean up named pipes on exit
id=$RANDOM
argsf=/tmp/fzf-args-$id
fifo1=/tmp/fzf-fifo1-$id
fifo2=/tmp/fzf-fifo2-$id
fifo3=/tmp/fzf-fifo3-$id
cleanup() {
rm -f $argsf $fifo1 $fifo2 $fifo3
}
trap cleanup EXIT SIGINT SIGTERM
fail() {
>&2 echo "$1"
exit 2
}
fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
[ -x "$fzf" ] || fail "fzf executable not found"
envs="env TERM=$TERM "
[ -n "$FZF_DEFAULT_OPTS" ] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
[ -n "$FZF_DEFAULT_COMMAND" ] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
mkfifo $fifo2
mkfifo $fifo3
# Build arguments to fzf
opts=""
for arg in "${args[@]}"; do
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
else
mkfifo $fifo1
cat <<< "$fzf $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
tmux set-window-option -q synchronize-panes off \;\
split-window $opt "$envs bash $argsf" $swap
cat <&0 > $fifo1 &
fi
cat $fifo2
exit "$(cat $fifo3)"

9
ext/mkrf_conf.rb
View File

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

20
fzf
View File

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

9
fzf-completion.zsh
View File

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

17
fzf.gemspec
View File

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

457
install
View File

@ -1,31 +1,138 @@
#!/usr/bin/env bash
cd `dirname $BASH_SOURCE`
fzf_base=`pwd`
[[ "$@" =~ --pre ]] && version=0.10.5 pre=1 ||
version=0.10.5 pre=0
# ruby executable
echo -n "Checking Ruby executable ... "
ruby=`which ruby`
if [ $? -ne 0 ]; then
echo "ruby executable not found!"
cd $(dirname $BASH_SOURCE)
fzf_base=$(pwd)
# If stdin is a tty, we are "interactive".
[ -t 0 ] && interactive=yes
ask() {
# non-interactive shell: wait for a linefeed
# interactive shell: continue after a single keypress
[ -n "$interactive" ] && read_n='-n 1' || read_n=
read -p "$1 ([y]/n) " $read_n -r
echo
[[ ! $REPLY =~ ^[Nn]$ ]]
}
check_binary() {
echo -n " - Checking fzf executable ... "
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=""
return 0
fi
rm -f "$fzf_base"/bin/fzf
return 1
}
symlink() {
echo " - Creating symlink: bin/$1 -> bin/fzf"
(cd "$fzf_base"/bin &&
rm -f fzf &&
ln -sf $1 fzf)
if [ $? -ne 0 ]; then
binary_error="Failed to create symlink"
return 1
fi
}
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
symlink $1 && check_binary && return
fi
fi
mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
if [ $? -ne 0 ]; then
binary_error="Failed to create bin directory"
return
fi
local url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}.tgz
if which curl > /dev/null; then
curl -fL $url | tar -xz
elif which wget > /dev/null; then
wget -O - $url | tar -xz
else
binary_error="curl or wget not found"
return
fi
if [ ! -f $1 ]; then
binary_error="Failed to download ${1}"
return
fi
chmod +x $1 && symlink $1 || return 1
if [[ $1 =~ linux_amd64$ ]]; then
check_binary || download $1-static
else
check_binary
fi
}
# Try to download binary executable
archi=$(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-$version-linux_386 ;;
*) binary_available=0 binary_error=1 ;;
esac
cd "$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
fi
echo "Installing legacy Ruby version ..."
# System ruby is preferred
system_ruby=/usr/bin/ruby
if [ -x $system_ruby -a $system_ruby != "$ruby" ]; then
# ruby executable
echo -n "Checking Ruby executable ... "
ruby=`which ruby`
if [ $? -ne 0 ]; then
echo "ruby executable not found !!!"
exit 1
fi
# System ruby is preferred
system_ruby=/usr/bin/ruby
if [ -x $system_ruby -a $system_ruby != "$ruby" ]; then
$system_ruby --disable-gems -rcurses -e0 2> /dev/null
[ $? -eq 0 ] && ruby=$system_ruby
fi
fi
echo "OK ($ruby)"
echo "OK ($ruby)"
# Curses-support
echo -n "Checking Curses support ... "
"$ruby" -rcurses -e0 2> /dev/null
if [ $? -eq 0 ]; then
# Curses-support
echo -n "Checking Curses support ... "
"$ruby" -rcurses -e0 2> /dev/null
if [ $? -eq 0 ]; then
echo "OK"
else
else
echo "Not found"
echo "Installing 'curses' gem ... "
if (( EUID )); then
@ -41,12 +148,12 @@ else
fi
exit 1
fi
fi
fi
# Ruby version
echo -n "Checking Ruby version ... "
"$ruby" -e 'exit RUBY_VERSION >= "1.9"'
if [ $? -eq 0 ]; then
# Ruby version
echo -n "Checking Ruby version ... "
"$ruby" -e 'exit RUBY_VERSION >= "1.9"'
if [ $? -eq 0 ]; then
echo ">= 1.9"
"$ruby" --disable-gems -rcurses -e0 2> /dev/null
if [ $? -eq 0 ]; then
@ -54,9 +161,18 @@ if [ $? -eq 0 ]; then
else
fzf_cmd="$ruby $fzf_base/fzf"
fi
else
else
echo "< 1.9"
fzf_cmd="$ruby $fzf_base/fzf"
fi
# Create fzf script
echo -n "Creating wrapper script for fzf ... "
rm -f "$fzf_base"/bin/fzf
echo "#!/bin/sh" > "$fzf_base"/bin/fzf
echo "$fzf_cmd \"\$@\"" >> "$fzf_base"/bin/fzf
chmod +x "$fzf_base"/bin/fzf
echo "OK"
fi
if [[ $1 == "-y" ]] ; then
@ -65,15 +181,11 @@ if [[ $1 == "-y" ]] ; then
key_bindings=0
else
# Auto-completion
read -p "Do you want to add auto-completion support? ([y]/n) " -n 1 -r
echo
[[ ! $REPLY =~ ^[Nn]$ ]]
ask "Do you want to add auto-completion support?"
auto_completion=$?
# Key-bindings
read -p "Do you want to add key bindings? ([y]/n) " -n 1 -r
echo
[[ ! $REPLY =~ ^[Nn]$ ]]
ask "Do you want to add key bindings?"
key_bindings=$?
fi
@ -82,268 +194,62 @@ for shell in bash zsh; do
echo -n "Generate ~/.fzf.$shell ... "
src=~/.fzf.${shell}
fzf_completion="[[ \$- =~ i ]] && source $fzf_base/fzf-completion.${shell}"
fzf_completion="[[ \$- =~ i ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
if [ $auto_completion -ne 0 ]; then
fzf_completion="# $fzf_completion"
fi
fzf_key_bindings="source \"$fzf_base/shell/key-bindings.${shell}\""
if [ $key_bindings -ne 0 ]; then
fzf_key_bindings="# $fzf_key_bindings"
fi
cat > $src << EOF
# Setup fzf function
# ------------------
unalias fzf 2> /dev/null
fzf() {
$fzf_cmd "\$@"
}
export -f fzf > /dev/null
# Setup fzf
# ---------
if [[ ! "\$PATH" =~ "$fzf_base/bin" ]]; then
export PATH="\$PATH:$fzf_base/bin"
fi
# Man path
# --------
if [[ ! "\$MANPATH" =~ "$fzf_base/man" && -d "$fzf_base/man" ]]; then
export MANPATH="\$MANPATH:$fzf_base/man"
fi
# Auto-completion
# ---------------
$fzf_completion
# Key bindings
# ------------
$fzf_key_bindings
EOF
if [ $key_bindings -eq 0 ]; then
if [ $shell = bash ]; then
cat >> $src << "EOFZF"
# Key bindings
# ------------
__fsel() {
command find * -path '*/\.*' -prune \
-o -type f -print \
-o -type d -print \
-o -type l -print 2> /dev/null | fzf -m | while read item; do
printf '%q ' "$item"
done
echo
}
if [[ $- =~ i ]]; then
__fsel_tmux() {
local height
height=${FZF_TMUX_HEIGHT:-40%}
if [[ $height =~ %$ ]]; then
height="-p ${height%\%}"
else
height="-l $height"
fi
tmux split-window $height "bash -c 'source ~/.fzf.bash; tmux send-keys -t $TMUX_PANE \"\$(__fsel)\"'"
}
__fcd() {
local dir
dir=$(command find -L ${1:-*} -path '*/\.*' -prune -o -type d -print 2> /dev/null | fzf +m) && printf 'cd %q' "$dir"
}
__use_tmux=0
[ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1
if [ -z "$(set -o | \grep '^vi.*on')" ]; then
# Required to refresh the prompt after fzf
bind '"\er": redraw-current-line'
# CTRL-T - Paste the selected file path into the command line
if [ $__use_tmux -eq 1 ]; then
bind '"\C-t": " \C-u \C-a\C-k$(__fsel_tmux)\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
else
bind '"\C-t": " \C-u \C-a\C-k$(__fsel)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
fi
# CTRL-R - Paste the selected command from history into the command line
bind '"\C-r": " \C-e\C-u$(HISTTIMEFORMAT= history | fzf +s +m -n2..,.. | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
# ALT-C - cd into the selected directory
bind '"\ec": " \C-e\C-u$(__fcd)\e\C-e\er\C-m"'
else
bind '"\C-x\C-e": shell-expand-line'
bind '"\C-x\C-r": redraw-current-line'
# CTRL-T - Paste the selected file path into the command line
# - FIXME: Selected items are attached to the end regardless of cursor position
if [ $__use_tmux -eq 1 ]; then
bind '"\C-t": "\e$a \eddi$(__fsel_tmux)\C-x\C-e\e0P$xa"'
else
bind '"\C-t": "\e$a \eddi$(__fsel)\C-x\C-e\e0Px$a \C-x\C-r\exa "'
fi
bind -m vi-command '"\C-t": "i\C-t"'
# CTRL-R - Paste the selected command from history into the command line
bind '"\C-r": "\eddi$(HISTTIMEFORMAT= history | fzf +s +m -n2..,.. | sed \"s/ *[0-9]* *//\")\C-x\C-e\e$a\C-x\C-r"'
bind -m vi-command '"\C-r": "i\C-r"'
# ALT-C - cd into the selected directory
bind '"\ec": "\eddi$(__fcd)\C-x\C-e\C-x\C-r\C-m"'
bind -m vi-command '"\ec": "i\ec"'
fi
unset __use_tmux
fi
EOFZF
else
cat >> $src << "EOFZF"
# Key bindings
# ------------
# CTRL-T - Paste the selected file path(s) into the command line
__fsel() {
set -o nonomatch
command find * -path '*/\.*' -prune \
-o -type f -print \
-o -type d -print \
-o -type l -print 2> /dev/null | fzf -m | while read item; do
printf '%q ' "$item"
done
echo
}
if [[ $- =~ i ]]; then
if [ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ]; then
fzf-file-widget() {
local height
height=${FZF_TMUX_HEIGHT:-40%}
if [[ $height =~ %$ ]]; then
height="-p ${height%\%}"
else
height="-l $height"
fi
tmux split-window $height "zsh -c 'source ~/.fzf.zsh; tmux send-keys -t $TMUX_PANE \"\$(__fsel)\"'"
}
else
fzf-file-widget() {
LBUFFER="${LBUFFER}$(__fsel)"
zle redisplay
}
fi
zle -N fzf-file-widget
bindkey '^T' fzf-file-widget
# ALT-C - cd into the selected directory
fzf-cd-widget() {
cd "${$(set -o nonomatch; command find -L * -path '*/\.*' -prune \
-o -type d -print 2> /dev/null | fzf):-.}"
zle reset-prompt
}
zle -N fzf-cd-widget
bindkey '\ec' fzf-cd-widget
# CTRL-R - Paste the selected command from history into the command line
fzf-history-widget() {
LBUFFER=$(fc -l 1 | fzf +s +m -n2..,.. | sed "s/ *[0-9*]* *//")
zle redisplay
}
zle -N fzf-history-widget
bindkey '^R' fzf-history-widget
fi
EOFZF
fi
fi
echo "OK"
done
# fish
has_fish=0
if [ -n "$(which fish)" ]; then
if [ -n "$(which fish 2> /dev/null)" ]; then
has_fish=1
echo -n "Generate ~/.config/fish/functions/fzf.fish ... "
echo -n "Update fish_user_paths ... "
fish << EOF
echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
or set --universal fish_user_paths \$fish_user_paths $fzf_base/bin
EOF
[ $? -eq 0 ] && echo "OK" || echo "Failed"
mkdir -p ~/.config/fish/functions
cat > ~/.config/fish/functions/fzf.fish << EOFZF
function fzf
$fzf_cmd \$argv
end
EOFZF
echo "OK"
if [ -e ~/.config/fish/functions/fzf.fish ]; then
echo -n "Remove unnecessary ~/.config/fish/functions/fzf.fish ... "
rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
fi
if [ $key_bindings -eq 0 ]; then
echo -n "Generate ~/.config/fish/functions/fzf_key_bindings.fish ... "
cat > ~/.config/fish/functions/fzf_key_bindings.fish << "EOFZF"
function fzf_key_bindings
# Due to a bug of fish, we cannot use command substitution,
# so we use temporary file instead
if [ -z "$TMPDIR" ]
set -g TMPDIR /tmp
end
function __fzf_list
command find * -path '*/\.*' -prune \
-o -type f -print \
-o -type d -print \
-o -type l -print 2> /dev/null
end
function __fzf_list_dir
command find -L * -path '*/\.*' -prune -o -type d -print 2> /dev/null
end
function __fzf_escape
while read item
echo -n (echo -n "$item" | sed -E 's/([ "$~'\''([{<>})])/\\\\\\1/g')' '
end
end
function __fzf_ctrl_t
if [ -n "$TMUX_PANE" -a "$FZF_TMUX" != "0" ]
tmux split-window (__fzf_tmux_height) "fish -c 'fzf_key_bindings; __fzf_ctrl_t_tmux \\$TMUX_PANE'"
else
__fzf_list | fzf -m > $TMPDIR/fzf.result
and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
commandline -f repaint
rm -f $TMPDIR/fzf.result
end
end
function __fzf_ctrl_t_tmux
__fzf_list | fzf -m > $TMPDIR/fzf.result
and tmux send-keys -t $argv[1] (cat $TMPDIR/fzf.result | __fzf_escape)
rm -f $TMPDIR/fzf.result
end
function __fzf_reverse
if which tac > /dev/null
tac $argv
else
tail -r $argv
end
end
function __fzf_ctrl_r
history | __fzf_reverse | fzf +s +m > $TMPDIR/fzf.result
and commandline (cat $TMPDIR/fzf.result)
commandline -f repaint
rm -f $TMPDIR/fzf.result
end
function __fzf_alt_c
# Fish hangs if the command before pipe redirects (2> /dev/null)
__fzf_list_dir | fzf +m > $TMPDIR/fzf.result
[ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
and cd (cat $TMPDIR/fzf.result)
commandline -f repaint
rm -f $TMPDIR/fzf.result
end
function __fzf_tmux_height
if set -q FZF_TMUX_HEIGHT
set height $FZF_TMUX_HEIGHT
else
set height 40%
end
if echo $height | \grep -q -E '%$'
echo "-p "(echo $height | sed 's/%$//')
else
echo "-l $height"
end
set -e height
end
bind \ct '__fzf_ctrl_t'
bind \cr '__fzf_ctrl_r'
bind \ec '__fzf_alt_c'
end
EOFZF
echo "OK"
echo -n "Symlink ~/.config/fish/functions/fzf_key_bindings.fish ... "
ln -sf $fzf_base/shell/key-bindings.fish \
~/.config/fish/functions/fzf_key_bindings.fish && echo "OK" || echo "Failed"
fi
fi
@ -359,6 +265,7 @@ append_line() {
if [ -n "$line" ]; then
echo " - Already exists: line #$line"
else
echo >> "$2"
echo "$1" >> "$2"
echo " + Added"
fi
@ -373,12 +280,6 @@ done
if [ $key_bindings -eq 0 -a $has_fish -eq 1 ]; then
bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
append_line "fzf_key_bindings" "$bind_file"
echo ' * Due to a known bug of fish, you may have issues running fzf on fish.'
echo ' * If that happens, try the following:'
echo ' - Remove ~/.config/fish/functions/fzf.fish'
echo ' - Place fzf executable in a directory included in $PATH'
echo
fi
cat << EOF

413
man/man1/fzf.1 Normal file
View File

@ -0,0 +1,413 @@
.ig
The MIT License (MIT)
Copyright (c) 2015 Junegunn Choi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
..
.TH fzf 1 "Sep 2015" "fzf 0.10.5" "fzf - a command-line fuzzy finder"
.SH NAME
fzf - a command-line fuzzy finder
.SH SYNOPSIS
fzf [options]
.SH DESCRIPTION
fzf is a general-purpose command-line fuzzy finder.
.SH OPTIONS
.SS Search mode
.TP
.B "-x, --extended"
Extended-search mode
.TP
.B "-e, --extended-exact"
Extended-search mode (exact match)
.TP
.B "-i"
Case-insensitive match (default: smart-case match)
.TP
.B "+i"
Case-sensitive match
.TP
.BI "-n, --nth=" "N[,..]"
Comma-separated list of field index expressions for limiting search scope.
See \fBFIELD INDEX EXPRESSION\fR for details.
.TP
.BI "--with-nth=" "N[,..]"
Transform each item using index expressions within finder
.TP
.BI "-d, --delimiter=" "STR"
Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
.SS Search result
.TP
.B "+s, --no-sort"
Do not sort the result
.TP
.B "--tac"
Reverse the order of the input
.RS
e.g. \fBhistory | fzf --tac --no-sort\fR
.RE
.TP
.BI "--tiebreak=" "CRI"
Sort criterion to use when the scores are tied
.br
.R ""
.br
.BR length " Prefers item with shorter length"
.br
.BR begin " Prefers item with matched substring closer to the beginning"
.br
.BR end " Prefers item with matched substring closer to the end"
.br
.BR index " Prefers item that appeared earlier in the input stream"
.br
.SS Interface
.TP
.B "-m, --multi"
Enable multi-select with tab/shift-tab
.TP
.B "--ansi"
Enable processing of ANSI color codes
.TP
.B "--no-mouse"
Disable mouse
.TP
.BI "--color=" "[BASE_SCHEME][,COLOR:ANSI]"
Color configuration. The name of the base color scheme is followed by custom
color mappings. Ansi color code of -1 denotes terminal default
foreground/background color.
.RS
e.g. \fBfzf --color=bg+:24\fR
\fBfzf --color=light,fg:232,bg:255,bg+:116,info:27\fR
.RE
.RS
.B BASE SCHEME:
(default: dark on 256-color terminal, otherwise 16)
\fBdark \fRColor scheme for dark 256-color terminal
\fBlight \fRColor scheme for light 256-color terminal
\fB16 \fRColor scheme for 16-color terminal
\fBbw \fRNo colors
.B COLOR:
\fBfg \fRText
\fBbg \fRBackground
\fBhl \fRHighlighted substrings
\fBfg+ \fRText (current line)
\fBbg+ \fRBackground (current line)
\fBhl+ \fRHighlighted substrings (current line)
\fBinfo \fRInfo
\fBprompt \fRPrompt
\fBpointer \fRPointer to the current line
\fBmarker \fRMulti-select marker
\fBspinner \fRStreaming input indicator
\fBheader \fRHeader
.RE
.TP
.B "--black"
Use black background
.TP
.B "--reverse"
Reverse orientation
.TP
.BI "--margin=" MARGIN
Comma-separated expression for margins around the finder.
.br
.R ""
.br
.RS
.BR TRBL " Same margin for top, right, bottom, and left"
.br
.BR TB,RL " Vertical, horizontal margin"
.br
.BR T,RL,B " Top, horizontal, bottom margin"
.br
.BR T,R,B,L " Top, right, bottom, left margin"
.br
.R ""
.br
Each part can be given in absolute number or in percentage relative to the
terminal size with \fB%\fR suffix.
.br
.R ""
.br
e.g. \fBfzf --margin 10%\fR
\fBfzf --margin 1,5%\fR
.RE
.TP
.B "--cycle"
Enable cyclic scroll
.TP
.B "--no-hscroll"
Disable horizontal scroll
.TP
.B "--inline-info"
Display finder info inline with the query
.TP
.BI "--prompt=" "STR"
Input prompt (default: '> ')
.TP
.BI "--toggle-sort=" "KEY"
Key to toggle sort. For the list of the allowed key names, see \fB--bind\fR.
.TP
.BI "--bind=" "KEYBINDS"
Comma-separated list of custom key bindings. Each key binding expression
follows the following format: \fBKEY:ACTION\fR
.RS
e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
.RE
.RS
.B AVAILABLE KEYS:
\fIctrl-[a-z]\fR
\fIalt-[a-z]\fR
\fIf[1-4]\fR
\fIenter\fR (\fIreturn\fR)
\fIspace\fR
\fIbspace\fR (\fIbs\fR)
\fIalt-bspace\fR (\fIalt-bs\fR)
\fItab\fR
\fIbtab\fR (\fIshift-tab\fR)
\fIesc\fR
\fIdel\fR
\fIup\fR
\fIdown\fR
\fIleft\fR
\fIright\fR
\fIhome\fR
\fIend\fR
\fIpgup\fR (\fIpage-up\fR)
\fIpgdn\fR (\fIpage-down\fR)
\fIshift-left\fR
\fIshift-right\fR
or any single character
.RE
.RS
\fBACTION: DEFAULT BINDINGS:
\fBabort\fR \fIctrl-c ctrl-g ctrl-q esc\fR
\fBaccept\fR \fIctrl-m (enter)\fR
\fBbackward-char\fR \fIctrl-b left\fR
\fBbackward-delete-char\fR \fIctrl-h bspace\fR
\fBbackward-kill-word\fR \fIalt-bs\fR
\fBbackward-word\fR \fIalt-b shift-left\fR
\fBbeginning-of-line\fR \fIctrl-a home\fR
\fBcancel\fR
\fBclear-screen\fR \fIctrl-l\fR
\fBdelete-char\fR \fIdel\fR
\fBdelete-char/eof\fR \fIctrl-d\fR
\fBdeselect-all\fR
\fBdown\fR \fIctrl-j ctrl-n down\fR
\fBend-of-line\fR \fIctrl-e end\fR
\fBexecute(...)\fR (see below for the details)
\fBforward-char\fR \fIctrl-f right\fR
\fBforward-word\fR \fIalt-f shift-right\fR
\fBignore\fR
\fBkill-line\fR
\fBkill-word\fR \fIalt-d\fR
\fBnext-history\fR (\fIctrl-n\fR on \fB--history\fR)
\fBpage-down\fR \fIpgdn\fR
\fBpage-up\fR \fIpgup\fR
\fBprevious-history\fR (\fIctrl-p\fR on \fB--history\fR)
\fBselect-all\fR
\fBtoggle\fR
\fBtoggle-all\fR
\fBtoggle-down\fR \fIctrl-i (tab)\fR
\fBtoggle-sort\fR (equivalent to \fB--toggle-sort\fR)
\fBtoggle-up\fR \fIbtab (shift-tab)\fR
\fBunix-line-discard\fR \fIctrl-u\fR
\fBunix-word-rubout\fR \fIctrl-w\fR
\fBup\fR \fIctrl-k ctrl-p up\fR
\fByank\fR \fIctrl-y\fR
.RE
.RS
With \fBexecute(...)\fR action, you can execute arbitrary commands without
leaving fzf. For example, you can turn fzf into a simple file browser by
binding \fBenter\fR key to \fBless\fR command like follows.
.RS
\fBfzf --bind "enter:execute(less {})"\fR
.RE
\fB{}\fR is the placeholder for the double-quoted string of the current line.
If the command contains parentheses, you can use any of the following
alternative notations to avoid parse errors.
\fBexecute[...]\fR
\fBexecute~...~\fR
\fBexecute!...!\fR
\fBexecute@...@\fR
\fBexecute#...#\fR
\fBexecute$...$\fR
\fBexecute%...%\fR
\fBexecute^...^\fR
\fBexecute&...&\fR
\fBexecute*...*\fR
\fBexecute;...;\fR
\fBexecute/.../\fR
\fBexecute|...|\fR
\fBexecute:...\fR
.RS
This is the special form that frees you from parse errors as it does not expect
the closing character. The catch is that it should be the last one in the
comma-separated list.
.RE
.RE
.TP
.BI "--history=" "HISTORY_FILE"
Load search history from the specified file and update the file on completion.
When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
\fBnext-history\fR and \fBprevious-history\fR.
.TP
.BI "--history-size=" "N"
Maximum number of entries in the history file (default: 1000). The file is
automatically truncated when the number of the lines exceeds the value.
.TP
.BI "--header=" "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
\fB--with-nth\fR is set, the lines are transformed just like the other
lines that follow.
.SS Scripting
.TP
.BI "-q, --query=" "STR"
Start the finder with the given query
.TP
.B "-1, --select-1"
Automatically select the only match
.TP
.B "-0, --exit-0"
Exit immediately when there's no match
.TP
.BI "-f, --filter=" "STR"
Filter mode. Do not start interactive finder. When used with \fB--no-sort\fR,
fzf becomes a fuzzy-version of grep.
.TP
.B "--print-query"
Print query as the first line
.TP
.BI "--expect=" "KEY[,..]"
Comma-separated list of keys that can be used to complete fzf in addition to
the default enter key. When this option is set, fzf will print the name of the
key pressed as the first line of its output (or as the second line if
\fB--print-query\fR is also used). The line will be empty if fzf is completed
with the default enter key.
.RS
e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
.RE
.TP
.B "--sync"
Synchronous search for multi-staged filtering. If specified, fzf will launch
ncurses finder only after the input stream is complete.
.RS
e.g. \fBfzf --multi | fzf --sync\fR
.RE
.SH ENVIRONMENT
.TP
.B FZF_DEFAULT_COMMAND
Default command to use when input is tty
.TP
.B FZF_DEFAULT_OPTS
Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
.SH EXIT STATUS
.BR 0 " Normal exit"
.br
.BR 1 " Interrupted with \fBCTRL-C\fR or \fBESC\fR"
.SH FIELD INDEX EXPRESSION
A field index expression can be a non-zero integer or a range expression
([BEGIN]..[END]). \fB--nth\fR and \fB--with-nth\fR take a comma-separated list
of field index expressions.
.SS Examples
.BR 1 " The 1st field"
.br
.BR 2 " The 2nd field"
.br
.BR -1 " The last field"
.br
.BR -2 " The 2nd to last field"
.br
.BR 3..5 " From the 3rd field to the 5th field"
.br
.BR 2.. " From the 2nd field to the last field"
.br
.BR ..-3 " From the 1st field to the 3rd to the last field"
.br
.BR .. " All the fields"
.br
.SH EXTENDED SEARCH MODE
With \fB-x\fR or \fB--extended\fR option, fzf will start in "extended-search
mode". In this mode, you can specify multiple patterns delimited by spaces,
such as: \fB'wild ^music .mp3$ sbtrkt !rmx\fR
.SS Exact-match (quoted)
A term that is prefixed by a single-quote character (\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 \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 \fB!\fR, fzf will exclude the items that satisfy the
term from the result.
.SS Extended-exact mode
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--extended-exact\fR option
(instead of \fB-x\fR or \fB--extended\fR). Note that in \fB--extended-exact\fR
mode, \fB'\fR-prefix "unquotes" the term.
.SH AUTHOR
Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
.SH SEE ALSO
.B Project homepage:
.RS
.I https://github.com/junegunn/fzf
.RE
.br
.R ""
.br
.B Extra Vim plugin:
.RS
.I https://github.com/junegunn/fzf.vim
.RE
.SH LICENSE
MIT

357
plugin/fzf.vim
View File

@ -1,4 +1,4 @@
" Copyright (c) 2014 Junegunn Choi
" Copyright (c) 2015 Junegunn Choi
"
" MIT License
"
@ -21,30 +21,41 @@
" OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
" WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
let s:min_tmux_width = 10
let s:min_tmux_height = 3
let s:default_tmux_height = '40%'
let s:launcher = 'xterm -e bash -ic %s'
let s:fzf_rb = expand('<sfile>:h:h').'/fzf'
let s:default_height = '40%'
let s:fzf_go = expand('<sfile>:h:h').'/bin/fzf'
let s:install = expand('<sfile>:h:h').'/install'
let s:installed = 0
let s:fzf_tmux = expand('<sfile>:h:h').'/bin/fzf-tmux'
let s:cpo_save = &cpo
set cpo&vim
function! s:fzf_exec()
if !exists('s:exec')
call system('type fzf')
if v:shell_error
let s:exec = executable(s:fzf_rb) ? s:fzf_rb : ''
else
if executable(s:fzf_go)
let s:exec = s:fzf_go
elseif executable('fzf')
let s:exec = 'fzf'
endif
elseif !s:installed && executable(s:install) &&
\ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
redraw
echo
echohl WarningMsg
echo 'Downloading fzf binary. Please wait ...'
echohl None
let s:installed = 1
call system(s:install.' --bin')
return s:fzf_exec()
elseif empty(s:exec)
unlet s:exec
throw 'fzf executable not found'
else
return s:exec
redraw
throw 'fzf executable not found'
endif
endif
return s:exec
endfunction
function! s:tmux_not_zoomed()
return system('tmux list-panes -F "#F"') !~# 'Z'
endfunction
function! s:tmux_enabled()
@ -53,15 +64,15 @@ function! s:tmux_enabled()
endif
if exists('s:tmux')
return s:tmux
return s:tmux && s:tmux_not_zoomed()
endif
let s:tmux = 0
if exists('$TMUX')
if exists('$TMUX') && executable(s:fzf_tmux)
let output = system('tmux -V')
let s:tmux = !v:shell_error && output >= 'tmux 1.7'
endif
return s:tmux
return s:tmux && s:tmux_not_zoomed()
endfunction
function! s:shellesc(arg)
@ -69,11 +80,35 @@ function! s:shellesc(arg)
endfunction
function! s:escape(path)
return substitute(a:path, ' ', '\\ ', 'g')
return escape(a:path, ' %#''"\')
endfunction
" Upgrade legacy options
function! s:upgrade(dict)
let copy = copy(a:dict)
if has_key(copy, 'tmux')
let copy.down = remove(copy, 'tmux')
endif
if has_key(copy, 'tmux_height')
let copy.down = remove(copy, 'tmux_height')
endif
if has_key(copy, 'tmux_width')
let copy.right = remove(copy, 'tmux_width')
endif
return copy
endfunction
function! fzf#run(...) abort
let dict = exists('a:1') ? a:1 : {}
try
let oshell = &shell
set shell=sh
if has('nvim') && bufexists('term://*:FZF')
echohl WarningMsg
echomsg 'FZF is already running!'
echohl None
return []
endif
let dict = exists('a:1') ? s:upgrade(a:1) : {}
let temps = { 'result': tempname() }
let optstr = get(dict, 'options', '')
try
@ -97,26 +132,68 @@ function! fzf#run(...) abort
else
let prefix = ''
endif
let command = prefix.fzf_exec.' '.optstr.' > '.temps.result
let tmux = !has('nvim') && s:tmux_enabled() && s:splittable(dict)
let command = prefix.(tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
if s:tmux_enabled() && s:tmux_splittable(dict)
try
if tmux
return s:execute_tmux(dict, command, temps)
elseif has('nvim')
return s:execute_term(dict, command, temps)
else
return s:execute(dict, command, temps)
endif
finally
call s:popd(dict)
endtry
finally
let &shell = oshell
endtry
endfunction
function! s:tmux_splittable(dict)
return
\ min([&columns, get(a:dict, 'tmux_width', 0)]) >= s:min_tmux_width ||
\ min([&lines, get(a:dict, 'tmux_height', get(a:dict, 'tmux', 0))]) >= s:min_tmux_height
function! s:present(dict, ...)
for key in a:000
if !empty(get(a:dict, key, ''))
return 1
endif
endfor
return 0
endfunction
function! s:fzf_tmux(dict)
let size = ''
for o in ['up', 'down', 'left', 'right']
if s:present(a:dict, o)
let 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
return printf('LINES=%d COLUMNS=%d %s %s %s --',
\ &lines, &columns, s:fzf_tmux, size, (has_key(a:dict, 'source') ? '' : '-'))
endfunction
function! s:splittable(dict)
return s:present(a:dict, 'up', 'down', 'left', 'right')
endfunction
function! s:pushd(dict)
if !empty(get(a:dict, 'dir', ''))
let a:dict.prev_dir = getcwd()
execute 'chdir '.s:escape(a:dict.dir)
if s:present(a:dict, 'dir')
let cwd = getcwd()
if get(a:dict, 'prev_dir', '') ==# cwd
return 1
endif
let a:dict.prev_dir = cwd
execute 'chdir '.s:escape(a:dict.dir)
let a:dict.dir = getcwd()
return 1
endif
return 0
endfunction
function! s:popd(dict)
@ -125,124 +202,218 @@ function! s:popd(dict)
endif
endfunction
function! s:xterm_launcher()
let fmt = 'xterm -T "[fzf]" -bg "\%s" -fg "\%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
if has('gui_macvim')
let fmt .= '; osascript -e "tell application \"MacVim\" to activate"'
endif
return printf(fmt,
\ synIDattr(hlID("Normal"), "bg"), synIDattr(hlID("Normal"), "fg"),
\ &columns, &lines/2, getwinposx(), getwinposy())
endfunction
unlet! s:launcher
let s:launcher = function('s:xterm_launcher')
function! s:execute(dict, command, temps)
call s:pushd(a:dict)
silent !clear
silent! !clear 2> /dev/null
let escaped = escape(substitute(a:command, '\n', '\\n', 'g'), '%#')
if has('gui_running')
let launcher = get(a:dict, 'launcher', get(g:, 'fzf_launcher', s:launcher))
let command = printf(launcher, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
let command = printf(fmt, "'".substitute(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
" Do not print error message on exit status 1 (no match) or 130 (interrupt)
if v:shell_error == 2
echohl ErrorMsg
echo 'Error running ' . command
echohl None
endif
return []
else
return s:callback(a:dict, a:temps, 0)
endif
endfunction
function! s:env_var(name)
if exists('$'.a:name)
return a:name . "='". substitute(expand('$'.a:name), "'", "'\\\\''", 'g') . "' "
else
return ''
return s:callback(a:dict, a:temps)
endif
endfunction
function! s:execute_tmux(dict, command, temps)
let command = s:env_var('FZF_DEFAULT_OPTS').s:env_var('FZF_DEFAULT_COMMAND').a:command
if !empty(get(a:dict, 'dir', ''))
let command = a:command
if s:pushd(a:dict)
" -c '#{pane_current_path}' is only available on tmux 1.9 or above
let command = 'cd '.s:escape(a:dict.dir).' && '.command
endif
let splitopt = '-v'
if has_key(a:dict, 'tmux_width')
let splitopt = '-h'
let size = a:dict.tmux_width
else
let size = get(a:dict, 'tmux_height', get(a:dict, 'tmux'))
endif
if type(size) == 1 && size =~ '%$'
let sizeopt = '-p '.size[0:-2]
else
let sizeopt = '-l '.size
endif
let s:pane = substitute(
\ system(
\ printf(
\ 'tmux split-window %s %s -P -F "#{pane_id}" %s',
\ splitopt, sizeopt, s:shellesc(command))), '\n', '', 'g')
let s:dict = a:dict
let s:temps = a:temps
augroup fzf_tmux
autocmd!
autocmd VimResized * nested call s:tmux_check()
augroup END
call system(command)
redraw!
return s:callback(a:dict, a:temps)
endfunction
function! s:tmux_check()
let panes = split(system('tmux list-panes -a -F "#{pane_id}"'), '\n')
if index(panes, s:pane) < 0
augroup fzf_tmux
autocmd!
augroup END
call s:callback(s:dict, s:temps, 1)
redraw
function! s:calc_size(max, val, dict)
if a:val =~ '%$'
let size = a:max * str2nr(a:val[:-2]) / 100
else
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', '').$FZF_DEFAULT_OPTS
let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
return srcsz >= 0 ? min([srcsz + margin, size]) : size
endfunction
function! s:callback(dict, temps, cd)
function! s:getpos()
return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$')}
endfunction
function! s:split(dict)
let directions = {
\ 'up': ['topleft', 'resize', &lines],
\ 'down': ['botright', 'resize', &lines],
\ 'left': ['vertical topleft', 'vertical resize', &columns],
\ 'right': ['vertical botright', 'vertical resize', &columns] }
let s:ppos = s:getpos()
try
for [dir, triple] in items(directions)
let val = get(a:dict, dir, '')
if !empty(val)
let [cmd, resz, max] = triple
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
endif
endfor
if s:present(a:dict, 'window')
execute a:dict.window
else
tabnew
endif
finally
setlocal winfixwidth winfixheight buftype=nofile bufhidden=wipe nobuflisted
endtry
endfunction
function! s:execute_term(dict, command, temps)
call s:split(a:dict)
call s:pushd(a:dict)
let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
function! fzf.on_exit(id, code)
let pos = s:getpos()
let inplace = pos == s:ppos " {'window': 'enew'}
if !inplace
if bufnr('') == self.buf
" We use close instead of bd! since Vim does not close the split when
" there's no other listed buffer (nvim +'set nobuflisted')
close
endif
if pos.tab == s:ppos.tab
wincmd p
endif
endif
call s:pushd(self.dict)
try
redraw!
call s:callback(self.dict, self.temps)
if inplace && bufnr('') == self.buf
execute "normal! \<c-^>"
" No other listed buffer
if bufnr('') == self.buf
bd!
endif
endif
finally
call s:popd(self.dict)
endtry
endfunction
call termopen(a:command, fzf)
startinsert
return []
endfunction
function! s:callback(dict, temps)
try
if !filereadable(a:temps.result)
let lines = []
else
if a:cd | call s:pushd(a:dict) | endif
let lines = readfile(a:temps.result)
if has_key(a:dict, 'sink')
for line in lines
if type(a:dict.sink) == 2
call a:dict.sink(line)
else
execute a:dict.sink.' '.s:escape(line)
execute a:dict.sink s:escape(line)
endif
endfor
endif
if has_key(a:dict, 'sink*')
call a:dict['sink*'](lines)
endif
endif
for tf in values(a:temps)
silent! call delete(tf)
endfor
call s:popd(a:dict)
return lines
catch
if stridx(v:exception, ':E325:') < 0
echoerr v:exception
endif
endtry
endfunction
let s:default_action = {
\ 'ctrl-m': 'e',
\ 'ctrl-t': 'tab split',
\ 'ctrl-x': 'split',
\ 'ctrl-v': 'vsplit' }
function! s:cmd_callback(lines) abort
if empty(a:lines)
return
endif
let key = remove(a:lines, 0)
let cmd = get(s:action, key, 'e')
try
let autochdir = &autochdir
set noautochdir
for item in a:lines
execute cmd s:escape(item)
endfor
finally
let &autochdir = autochdir
endtry
endfunction
function! s:cmd(bang, ...) abort
let args = copy(a:000)
let s:action = get(g:, 'fzf_action', s:default_action)
let args = extend(['--expect='.join(keys(s:action), ',')], a:000)
let opts = {}
if len(args) > 0 && isdirectory(expand(args[-1]))
let opts.dir = remove(args, -1)
let opts.dir = substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g')
endif
if !a:bang
let opts.tmux = get(g:, 'fzf_tmux_height', s:default_tmux_height)
let opts.down = get(g:, 'fzf_height', get(g:, 'fzf_tmux_height', s:default_height))
endif
call fzf#run(extend({ 'sink': 'e', 'options': join(args) }, opts))
call fzf#run(extend({'options': join(args), 'sink*': function('<sid>cmd_callback')}, opts))
endfunction
command! -nargs=* -complete=dir -bang FZF call s:cmd('<bang>' == '!', <f-args>)
command! -nargs=* -complete=dir -bang FZF call s:cmd(<bang>0, <f-args>)
let &cpo = s:cpo_save
unlet s:cpo_save

80
fzf-completion.bash → shell/completion.bash
View File

@ -5,6 +5,8 @@
# / __/ / /_/ __/
# /_/ /___/_/-completion.bash
#
# - $FZF_TMUX (default: 1)
# - $FZF_TMUX_HEIGHT (default: '40%')
# - $FZF_COMPLETION_TRIGGER (default: '**')
# - $FZF_COMPLETION_OPTS (default: empty)
@ -24,23 +26,44 @@ _fzf_opts_completion() {
-i +i
-n --nth
-d --delimiter
-s --sort +s
+s --no-sort
--tac
--tiebreak
--bind
-m --multi
--no-mouse
+c --no-color
+2 --no-256
--color
--black
--reverse
--no-hscroll
--inline-info
--prompt
-q --query
-1 --select-1
-0 --exit-0
-f --filter
--print-query"
--print-query
--expect
--toggle-sort
--sync
--cycle
--history
--history-size
--header
--header-lines
--margin"
case "${prev}" in
--sort|-s)
COMPREPLY=( $(compgen -W "$(seq 2000 1000 10000)" -- ${cur}) )
--tiebreak)
COMPREPLY=( $(compgen -W "length begin end index" -- ${cur}) )
return 0
;;
--color)
COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
return 0
;;
--history)
COMPREPLY=()
return 0
;;
esac
@ -54,9 +77,10 @@ _fzf_opts_completion() {
}
_fzf_handle_dynamic_completion() {
local cmd orig ret
local cmd orig ret orig_cmd
cmd="$1"
shift
orig_cmd="$1"
orig=$(eval "echo \$_fzf_orig_completion_$cmd")
if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
@ -64,17 +88,18 @@ _fzf_handle_dynamic_completion() {
elif [ -n "$_fzf_completion_loader" ]; then
_completion_loader "$@"
ret=$?
eval $(complete | \grep "\-F.* $cmd$" | _fzf_orig_completion_filter)
eval $(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)
source $BASH_SOURCE
return $ret
fi
}
_fzf_path_completion() {
local cur base dir leftover matches trigger cmd
local cur base dir leftover matches trigger cmd fzf
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
COMPREPLY=()
trigger=${FZF_COMPLETION_TRIGGER:-**}
trigger=${FZF_COMPLETION_TRIGGER-'**'}
cur="${COMP_WORDS[COMP_CWORD]}"
if [[ ${cur} == *"$trigger" ]]; then
base=${cur:0:${#cur}-${#trigger}}
@ -87,8 +112,8 @@ _fzf_path_completion() {
leftover=${leftover/#\/}
[ "$dir" = './' ] && dir=''
tput sc
matches=$(find -L "$dir"* $1 2> /dev/null | fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
printf '%q ' "$item"
matches=$(find -L "$dir"* $1 2> /dev/null | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
printf "%q$3 " "$item"
done)
matches=${matches% }
if [ -n "$matches" ]; then
@ -103,6 +128,7 @@ _fzf_path_completion() {
[[ "$dir" =~ /$ ]] || dir="$dir"/
done
else
shift
shift
shift
_fzf_handle_dynamic_completion "$cmd" "$@"
@ -110,16 +136,17 @@ _fzf_path_completion() {
}
_fzf_list_completion() {
local cur selected trigger cmd src
local cur selected trigger cmd src fzf
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
read -r src
cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
trigger=${FZF_COMPLETION_TRIGGER:-**}
trigger=${FZF_COMPLETION_TRIGGER-'**'}
cur="${COMP_WORDS[COMP_CWORD]}"
if [[ ${cur} == *"$trigger" ]]; then
cur=${cur:0:${#cur}-${#trigger}}
tput sc
selected=$(eval "$src | fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
selected=$(eval "$src | $fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
selected=${selected% }
tput rc
@ -136,27 +163,28 @@ _fzf_list_completion() {
_fzf_all_completion() {
_fzf_path_completion \
"-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
"-m" "$@"
"-m" "" "$@"
}
_fzf_file_completion() {
_fzf_path_completion \
"-name .git -prune -o -name .svn -prune -o -type f -print -o -type l -print" \
"-m" "$@"
"-m" "" "$@"
}
_fzf_dir_completion() {
_fzf_path_completion \
"-name .git -prune -o -name .svn -prune -o -type d -print" \
"" "$@"
"" "/" "$@"
}
_fzf_kill_completion() {
[ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
local selected
local selected fzf
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
tput sc
selected=$(ps -ef | sed 1d | fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
selected=$(ps -ef | sed 1d | $fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
tput rc
if [ -n "$selected" ]; then
@ -167,13 +195,13 @@ _fzf_kill_completion() {
_fzf_telnet_completion() {
_fzf_list_completion '+m' "$@" << "EOF"
\grep -v '^\s*\(#\|$\)' /etc/hosts | awk '{if (length($2) > 0) {print $2}}' | sort -u
\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
_fzf_ssh_completion() {
_fzf_list_completion '+m' "$@" << "EOF"
cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i ^host | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts) | awk '{print $2}' | sort -u
cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
@ -190,7 +218,7 @@ EOF
}
# fzf options
complete -F _fzf_opts_completion fzf
complete -o default -F _fzf_opts_completion fzf
d_cmds="cd pushd rmdir"
f_cmds="
@ -206,11 +234,11 @@ a_cmds="
x_cmds="kill ssh telnet unset unalias export"
# Preserve existing completion
if [ "$_fzf_completion_loaded" != '0.8.6-1' ]; then
if [ "$_fzf_completion_loaded" != '0.9.12' ]; then
# Really wish I could use associative array but OSX comes with bash 3.2 :(
eval $(complete | \grep '\-F' | \grep -v _fzf_ |
\grep -E " ($(echo $d_cmds $f_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
export _fzf_completion_loaded=0.8.6-1
export _fzf_completion_loaded=0.9.12
fi
if type _completion_loader > /dev/null 2>&1; then
@ -219,7 +247,7 @@ fi
# Directory
for cmd in $d_cmds; do
complete -F _fzf_dir_completion -o default -o bashdefault $cmd
complete -F _fzf_dir_completion -o nospace -o plusdirs $cmd
done
# File

163
shell/completion.zsh Normal file
View File

@ -0,0 +1,163 @@
#!/bin/zsh
# ____ ____
# / __/___ / __/
# / /_/_ / / /_
# / __/ / /_/ __/
# /_/ /___/_/-completion.zsh
#
# - $FZF_TMUX (default: 1)
# - $FZF_TMUX_HEIGHT (default: '40%')
# - $FZF_COMPLETION_TRIGGER (default: '**')
# - $FZF_COMPLETION_OPTS (default: empty)
_fzf_path_completion() {
local base lbuf find_opts fzf_opts suffix tail fzf dir leftover matches nnm
base=${(Q)1}
lbuf=$2
find_opts=$3
fzf_opts=$4
suffix=$5
tail=$6
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
if ! setopt | grep nonomatch > /dev/null; then
nnm=1
setopt nonomatch
fi
dir="$base"
while [ 1 ]; do
if [ -z "$dir" -o -d ${~dir} ]; then
leftover=${base/#"$dir"}
leftover=${leftover/#\/}
[ "$dir" = './' ] && dir=''
dir=${~dir}
matches=$(\find -L $dir* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
printf "%q$suffix " "$item"
done)
matches=${matches% }
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches$tail"
fi
zle redisplay
break
fi
dir=$(dirname "$dir")
dir=${dir%/}/
done
[ -n "$nnm" ] && unsetopt nonomatch
}
_fzf_all_completion() {
_fzf_path_completion "$1" "$2" \
"-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
"-m" "" " "
}
_fzf_dir_completion() {
_fzf_path_completion "$1" "$2" \
"-name .git -prune -o -name .svn -prune -o -type d -print" \
"" "/" ""
}
_fzf_list_completion() {
local prefix lbuf fzf_opts src fzf matches
prefix=$1
lbuf=$2
fzf_opts=$3
read -r src
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
matches=$(eval "$src" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$prefix")
if [ -n "$matches" ]; then
LBUFFER="$lbuf$matches "
fi
zle redisplay
}
_fzf_telnet_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
_fzf_ssh_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') | awk '{if (length($2) > 0) {print $2}}' | sort -u
EOF
}
_fzf_env_var_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
declare -xp | sed 's/=.*//' | sed 's/.* //'
EOF
}
_fzf_alias_completion() {
_fzf_list_completion "$1" "$2" '+m' << "EOF"
alias | sed 's/=.*//'
EOF
}
fzf-completion() {
local tokens cmd prefix trigger tail fzf matches lbuf d_cmds sws
if setopt | grep shwordsplit > /dev/null; then
sws=1
unsetopt shwordsplit
fi
# http://zsh.sourceforge.net/FAQ/zshfaq03.html
# http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
tokens=(${(z)LBUFFER})
if [ ${#tokens} -lt 1 ]; then
eval "zle ${fzf_default_completion:-expand-or-complete}"
return
fi
cmd=${tokens[1]}
# Explicitly allow for empty trigger.
trigger=${FZF_COMPLETION_TRIGGER-'**'}
[ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
# Kill completion (do not require trigger sequence)
if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
[ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
matches=$(ps -ef | sed 1d | ${=fzf} ${=FZF_COMPLETION_OPTS} -m | awk '{print $2}' | tr '\n' ' ')
if [ -n "$matches" ]; then
LBUFFER="$LBUFFER$matches"
fi
zle redisplay
# Trigger sequence given
elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
d_cmds=(cd pushd rmdir)
[ -z "$trigger" ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
[ -z "${tokens[-1]}" ] && lbuf=$LBUFFER || lbuf=${LBUFFER:0:-${#tokens[-1]}}
if [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
_fzf_dir_completion "$prefix" $lbuf
elif [ $cmd = telnet ]; then
_fzf_telnet_completion "$prefix" $lbuf
elif [ $cmd = ssh ]; then
_fzf_ssh_completion "$prefix" $lbuf
elif [ $cmd = unset -o $cmd = export ]; then
_fzf_env_var_completion "$prefix" $lbuf
elif [ $cmd = unalias ]; then
_fzf_alias_completion "$prefix" $lbuf
else
_fzf_all_completion "$prefix" $lbuf
fi
# Fall back to default completion
else
eval "zle ${fzf_default_completion:-expand-or-complete}"
fi
[ -n "$sws" ] && setopt shwordsplit
}
[ -z "$fzf_default_completion" ] &&
fzf_default_completion=$(bindkey '^I' | grep -v undefined-key | awk '{print $2}')
zle -N fzf-completion
bindkey '^I' fzf-completion

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

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

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

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

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FROM centos:centos7
MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
# yum
RUN yum install -y git gcc make tar ncurses-devel
# 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
# Volume
VOLUME /go
# Default CMD
CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash

26
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FROM ubuntu:14.04
MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
# apt-get
RUN apt-get update && apt-get -y upgrade && \
apt-get install -y --force-yes git curl build-essential libncurses-dev libgpm-dev
# Install Go 1.4
RUN cd / && curl \
https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
tar -xz && mv go go1.4
ENV GOPATH /go
ENV GOROOT /go1.4
ENV PATH /go1.4/bin:$PATH
# For i386 build
RUN apt-get install -y lib32ncurses5-dev && \
cd $GOROOT/src && GOARCH=386 ./make.bash
# Volume
VOLUME /go
# Default CMD
CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash

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The MIT License (MIT)
Copyright (c) 2015 Junegunn Choi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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ifndef GOPATH
$(error GOPATH is undefined)
endif
UNAME_S := $(shell uname -s)
ifeq ($(UNAME_S),Darwin)
GOOS := darwin
LDFLAGS :=
ifdef STATIC
$(error Static linking not possible on OS X)
endif
else ifeq ($(UNAME_S),Linux)
GOOS := linux
ifdef STATIC
SUFFIX := -static
LDFLAGS := --ldflags '-extldflags "-static -ltinfo -lgpm"'
else
SUFFIX :=
LDFLAGS :=
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$(SUFFIX)
BINARY64 := fzf-$(GOOS)_amd64$(SUFFIX)
VERSION = $(shell fzf/$(BINARY64) --version)
RELEASE32 = fzf-$(VERSION)-$(GOOS)_386$(SUFFIX)
RELEASE64 = fzf-$(VERSION)-$(GOOS)_amd64$(SUFFIX)
all: release
release: build
-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
rm -f $(RELEASE32) $(RELEASE64)
ifndef STATIC
build: test fzf/$(BINARY32) fzf/$(BINARY64)
else
build: test fzf/$(BINARY64)
endif
test:
go get
go test -v ./...
install: $(BINDIR)/fzf
uninstall:
rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY64)
clean:
cd fzf && rm -f fzf-*
fzf/$(BINARY32): $(SOURCES)
cd fzf && GOARCH=386 CGO_ENABLED=1 go build -o $(BINARY32)
fzf/$(BINARY64): $(SOURCES)
cd fzf && go build $(LDFLAGS) -o $(BINARY64)
$(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
cp -f fzf/$(BINARY64) $(BINDIR)
cd $(BINDIR) && ln -sf $(BINARY64) fzf
$(BINDIR):
mkdir -p $@
docker-arch:
docker build -t junegunn/arch-sandbox - < Dockerfile.arch
docker-ubuntu:
docker build -t junegunn/ubuntu-sandbox - < Dockerfile.ubuntu
arch: docker-arch
docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
ubuntu: docker-ubuntu
docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
linux: docker-arch
docker run -i -t -v $(GOPATH):/go junegunn/arch-sandbox \
/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make'
linux-static: docker-ubuntu
docker run -i -t -v $(GOPATH):/go junegunn/ubuntu-sandbox \
/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make STATIC=1'
.PHONY: all build release test install uninstall clean docker \
linux linux-static arch ubuntu docker-arch docker-ubuntu

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fzf in Go
=========
<img src="https://cloud.githubusercontent.com/assets/700826/5725028/028ea834-9b93-11e4-9198-43088c3f295d.gif" height="463" alt="fzf in go">
This directory contains the source code for the new fzf implementation in
[Go][go].
Upgrade from Ruby version
-------------------------
The install script has been updated to download the right binary for your
system. If you already have installed fzf, simply git-pull the repository and
rerun the install script.
```sh
cd ~/.fzf
git pull
./install
```
Otherwise, follow [the instruction][install] as before. You can also install
fzf using Homebrew if you prefer that way.
Motivations
-----------
### No Ruby dependency
There have always been complaints about fzf being a Ruby script. To make
matters worse, Ruby 2.1 removed ncurses binding from its standard libary.
Because of the change, users running Ruby 2.1 or above are forced to build C
extensions of curses gem to meet the requirement of fzf. The new Go version
will be distributed as an executable binary so it will be much more accessible
and should be easier to setup.
### Performance
Many people have been surprised to see how fast fzf is even when it was
written in Ruby. It stays quite responsive even for 100k+ lines, which is
well above the size of the usual input.
The new Go version, of course, is significantly faster than that. It has all
the performance optimization techniques used in Ruby implementation and more.
It also doesn't suffer from [GIL][gil], so the search performance scales
proportional to the number of CPU cores. On my MacBook Pro (Mid 2012), the new
version was shown to be an order of magnitude faster on certain cases. It also
starts much faster though the difference may not be noticeable.
Differences with Ruby version
-----------------------------
The Go version is designed to be perfectly compatible with the previous Ruby
version. The only behavioral difference is that the new version ignores the
numeric argument to `--sort=N` option and always sorts the result regardless
of the number of matches. The value was introduced to limit the response time
of the query, but the Go version is blazingly fast (almost instant response
even for 1M+ items) so I decided that it's no longer required.
System requirements
-------------------
Currently, prebuilt binaries are provided only for OS X and Linux. The install
script will fall back to the legacy Ruby version on the other systems, but if
you have Go 1.4 installed, you can try building it yourself.
However, as pointed out in [golang.org/doc/install][req], the Go version may
not run on CentOS/RHEL 5.x, and if that's the case, the install script will
choose the Ruby version instead.
The Go version depends on [ncurses][ncurses] and some Unix system calls, so it
shouldn't run natively on Windows at the moment. But it won't be impossible to
support Windows by falling back to a cross-platform alternative such as
[termbox][termbox] only on Windows. If you're interested in making fzf work on
Windows, please let me know.
Build
-----
```sh
# Build fzf executables and tarballs
make
# Install the executable to ../bin directory
make install
# Build executables and tarballs for Linux using Docker
make linux
```
Contribution
------------
For the time being, I will not add or accept any new features until we can be
sure that the implementation is stable and we have a sufficient number of test
cases. However, fixes for obvious bugs and new test cases are welcome.
I also care much about the performance of the implementation, so please make
sure that your change does not result in performance regression. And please be
noted that we don't have a quantitative measure of the performance yet.
Third-party libraries used
--------------------------
- [ncurses][ncurses]
- [mattn/go-runewidth](https://github.com/mattn/go-runewidth)
- Licensed under [MIT](http://mattn.mit-license.org/2013)
- [mattn/go-shellwords](https://github.com/mattn/go-shellwords)
- Licensed under [MIT](http://mattn.mit-license.org/2014)
License
-------
[MIT](LICENSE)
[install]: https://github.com/junegunn/fzf#installation
[go]: https://golang.org/
[gil]: http://en.wikipedia.org/wiki/Global_Interpreter_Lock
[ncurses]: https://www.gnu.org/software/ncurses/
[req]: http://golang.org/doc/install
[termbox]: https://github.com/nsf/termbox-go

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package algo
import (
"strings"
"unicode"
"github.com/junegunn/fzf/src/util"
)
/*
* String matching algorithms here do not use strings.ToLower to avoid
* performance penalty. And they assume pattern runes are given in lowercase
* letters when caseSensitive is false.
*
* 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]
}
// FuzzyMatch performs fuzzy-match
func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
if len(pattern) == 0 {
return 0, 0
}
// 0. (FIXME) How to find the shortest match?
// a_____b__c__abc
// ^^^^^^^^^^ ^^^
// 1. forward scan (abc)
// *-----*-----*>
// a_____b___abc__
// 2. reverse scan (cba)
// a_____b___abc__
// <***
pidx := 0
sidx := -1
eidx := -1
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 {
// Partially inlining `unicode.ToLower`. Ugly, but makes a noticeable
// difference in CPU cost. (Measured on Go 1.4.1. Also note that the Go
// compiler as of now does not inline non-leaf functions.)
if char >= 'A' && char <= 'Z' {
char += 32
} else if char > unicode.MaxASCII {
char = unicode.To(unicode.LowerCase, char)
}
}
pchar := runeAt(pattern, pidx, lenPattern, forward)
if char == pchar {
if sidx < 0 {
sidx = index
}
if pidx++; pidx == lenPattern {
eidx = index + 1
break
}
}
}
if sidx >= 0 && eidx >= 0 {
pidx--
for index := eidx - 1; index >= sidx; index-- {
char := runeAt(runes, index, lenRunes, forward)
if !caseSensitive {
if char >= 'A' && char <= 'Z' {
char += 32
} else if char > unicode.MaxASCII {
char = unicode.To(unicode.LowerCase, char)
}
}
pchar := runeAt(pattern, pidx, lenPattern, forward)
if char == pchar {
if pidx--; pidx < 0 {
sidx = index
break
}
}
}
if forward {
return sidx, eidx
}
return lenRunes - eidx, lenRunes - sidx
}
return -1, -1
}
// ExactMatchNaive is a basic string searching algorithm that handles case
// sensitivity. Although naive, it still performs better than the combination
// of strings.ToLower + strings.Index for typical fzf use cases where input
// strings and patterns are not very long.
//
// We might try to implement better algorithms in the future:
// http://en.wikipedia.org/wiki/String_searching_algorithm
func ExactMatchNaive(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
if len(pattern) == 0 {
return 0, 0
}
lenRunes := len(runes)
lenPattern := len(pattern)
if lenRunes < lenPattern {
return -1, -1
}
pidx := 0
for index := 0; index < lenRunes; index++ {
char := runeAt(runes, index, lenRunes, forward)
if !caseSensitive {
if char >= 'A' && char <= 'Z' {
char += 32
} else if char > unicode.MaxASCII {
char = unicode.To(unicode.LowerCase, char)
}
}
pchar := runeAt(pattern, pidx, lenPattern, forward)
if pchar == char {
pidx++
if pidx == lenPattern {
if forward {
return index - lenPattern + 1, index + 1
}
return lenRunes - (index + 1), lenRunes - (index - lenPattern + 1)
}
} else {
index -= pidx
pidx = 0
}
}
return -1, -1
}
// PrefixMatch performs prefix-match
func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
if len(runes) < len(pattern) {
return -1, -1
}
for index, r := range pattern {
char := runes[index]
if !caseSensitive {
char = unicode.ToLower(char)
}
if char != r {
return -1, -1
}
}
return 0, len(pattern)
}
// SuffixMatch performs suffix-match
func SuffixMatch(caseSensitive bool, forward bool, input []rune, pattern []rune) (int, int) {
runes := util.TrimRight(input)
trimmedLen := len(runes)
diff := trimmedLen - len(pattern)
if diff < 0 {
return -1, -1
}
for index, r := range pattern {
char := runes[index+diff]
if !caseSensitive {
char = unicode.ToLower(char)
}
if char != r {
return -1, -1
}
}
return trimmedLen - len(pattern), trimmedLen
}
// EqualMatch performs equal-match
func EqualMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
if len(runes) != len(pattern) {
return -1, -1
}
runesStr := string(runes)
if !caseSensitive {
runesStr = strings.ToLower(runesStr)
}
if runesStr == string(pattern) {
return 0, len(pattern)
}
return -1, -1
}

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package algo
import (
"strings"
"testing"
)
func assertMatch(t *testing.T, fun func(bool, bool, []rune, []rune) (int, int), caseSensitive bool, forward bool, input string, pattern string, sidx int, eidx int) {
if !caseSensitive {
pattern = strings.ToLower(pattern)
}
s, e := fun(caseSensitive, forward, []rune(input), []rune(pattern))
if s != sidx {
t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", s, sidx, input, pattern)
}
if e != eidx {
t.Errorf("Invalid end index: %d (expected: %d, %s / %s)", e, eidx, input, pattern)
}
}
func TestFuzzyMatch(t *testing.T) {
assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9)
assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1)
assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9)
assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1)
}
func TestFuzzyMatchBackward(t *testing.T) {
assertMatch(t, FuzzyMatch, false, true, "foobar fb", "fb", 0, 4)
assertMatch(t, FuzzyMatch, false, false, "foobar fb", "fb", 7, 9)
}
func TestExactMatchNaive(t *testing.T) {
for _, dir := range []bool{true, false} {
assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5)
assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1)
assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1)
}
}
func TestExactMatchNaiveBackward(t *testing.T) {
assertMatch(t, FuzzyMatch, false, true, "foobar foob", "oo", 1, 3)
assertMatch(t, FuzzyMatch, false, false, "foobar foob", "oo", 8, 10)
}
func TestPrefixMatch(t *testing.T) {
for _, dir := range []bool{true, false} {
assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3)
assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1)
assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "baz", -1, -1)
}
}
func TestSuffixMatch(t *testing.T) {
for _, dir := range []bool{true, false} {
assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1)
assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9)
assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1)
}
}
func TestEmptyPattern(t *testing.T) {
for _, dir := range []bool{true, false} {
assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0)
assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0)
assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0)
assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6)
}
}

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

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

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package fzf
import "sync"
// queryCache associates strings to lists of items
type queryCache map[string][]*Item
// ChunkCache associates Chunk and query string to lists of items
type ChunkCache struct {
mutex sync.Mutex
cache map[*Chunk]*queryCache
}
// NewChunkCache returns a new ChunkCache
func NewChunkCache() ChunkCache {
return ChunkCache{sync.Mutex{}, make(map[*Chunk]*queryCache)}
}
// Add adds the list to the cache
func (cc *ChunkCache) Add(chunk *Chunk, key string, list []*Item) {
if len(key) == 0 || !chunk.IsFull() || len(list) > queryCacheMax {
return
}
cc.mutex.Lock()
defer cc.mutex.Unlock()
qc, ok := cc.cache[chunk]
if !ok {
cc.cache[chunk] = &queryCache{}
qc = cc.cache[chunk]
}
(*qc)[key] = list
}
// Find is called to lookup ChunkCache
func (cc *ChunkCache) Find(chunk *Chunk, key string) ([]*Item, bool) {
if len(key) == 0 || !chunk.IsFull() {
return nil, false
}
cc.mutex.Lock()
defer cc.mutex.Unlock()
qc, ok := cc.cache[chunk]
if ok {
list, ok := (*qc)[key]
if ok {
return list, true
}
}
return nil, false
}

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

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

74
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package fzf
import (
"fmt"
"testing"
)
func TestChunkList(t *testing.T) {
cl := NewChunkList(func(s []byte, i int) *Item {
return &Item{text: []rune(string(s)), rank: Rank{0, 0, uint32(i * 2)}}
})
// Snapshot
snapshot, count := cl.Snapshot()
if len(snapshot) > 0 || count > 0 {
t.Error("Snapshot should be empty now")
}
// Add some data
cl.Push([]byte("hello"))
cl.Push([]byte("world"))
// Previously created snapshot should remain the same
if len(snapshot) > 0 {
t.Error("Snapshot should not have changed")
}
// But the new snapshot should contain the added items
snapshot, count = cl.Snapshot()
if len(snapshot) != 1 && count != 2 {
t.Error("Snapshot should not be empty now")
}
// Check the content of the ChunkList
chunk1 := snapshot[0]
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 {
t.Error("Invalid data")
}
if chunk1.IsFull() {
t.Error("Chunk should not have been marked full yet")
}
// Add more data
for i := 0; i < chunkSize*2; i++ {
cl.Push([]byte(fmt.Sprintf("item %d", i)))
}
// Previous snapshot should remain the same
if len(snapshot) != 1 {
t.Error("Snapshot should stay the same")
}
// New snapshot
snapshot, count = cl.Snapshot()
if len(snapshot) != 3 || !snapshot[0].IsFull() ||
!snapshot[1].IsFull() || snapshot[2].IsFull() || count != chunkSize*2+2 {
t.Error("Expected two full chunks and one more chunk")
}
if len(*snapshot[2]) != 2 {
t.Error("Unexpected number of items")
}
cl.Push([]byte("hello"))
cl.Push([]byte("world"))
lastChunkCount := len(*snapshot[len(snapshot)-1])
if lastChunkCount != 2 {
t.Error("Unexpected number of items:", lastChunkCount)
}
}

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package fzf
import (
"time"
"github.com/junegunn/fzf/src/util"
)
const (
// Current version
version = "0.10.5"
// Core
coordinatorDelayMax time.Duration = 100 * time.Millisecond
coordinatorDelayStep time.Duration = 10 * time.Millisecond
// Reader
defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
// Terminal
initialDelay = 100 * time.Millisecond
spinnerDuration = 200 * time.Millisecond
// Matcher
progressMinDuration = 200 * time.Millisecond
// Capacity of each chunk
chunkSize int = 100
// Do not cache results of low selectivity queries
queryCacheMax int = chunkSize / 5
// Not to cache mergers with large lists
mergerCacheMax int = 100000
// History
defaultHistoryMax int = 1000
)
// fzf events
const (
EvtReadNew util.EventType = iota
EvtReadFin
EvtSearchNew
EvtSearchProgress
EvtSearchFin
EvtHeader
EvtClose
)
const (
exitOk = 0
exitNoMatch = 1
exitError = 2
exitInterrupt = 130
)

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src/core.go Normal file
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/*
Package fzf implements fzf, a command-line fuzzy finder.
The MIT License (MIT)
Copyright (c) 2015 Junegunn Choi
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
package fzf
import (
"fmt"
"os"
"runtime"
"time"
"github.com/junegunn/fzf/src/util"
)
func initProcs() {
runtime.GOMAXPROCS(runtime.NumCPU())
}
/*
Reader -> EvtReadFin
Reader -> EvtReadNew -> Matcher (restart)
Terminal -> EvtSearchNew:bool -> Matcher (restart)
Matcher -> EvtSearchProgress -> Terminal (update info)
Matcher -> EvtSearchFin -> Terminal (update list)
Matcher -> EvtHeader -> Terminal (update header)
*/
// Run starts fzf
func Run(opts *Options) {
initProcs()
sort := opts.Sort > 0
rankTiebreak = opts.Tiebreak
if opts.Version {
fmt.Println(version)
os.Exit(exitOk)
}
// Event channel
eventBox := util.NewEventBox()
// ANSI code processor
ansiProcessor := func(data []byte) ([]rune, []ansiOffset) {
return util.BytesToRunes(data), nil
}
ansiProcessorRunes := func(data []rune) ([]rune, []ansiOffset) {
return data, nil
}
if opts.Ansi {
if opts.Theme != nil {
var state *ansiState
ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
trimmed, offsets, newState := extractColor(string(data), state)
state = newState
return []rune(trimmed), offsets
}
} else {
// When color is disabled but ansi option is given,
// we simply strip out ANSI codes from the input
ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
trimmed, _, _ := extractColor(string(data), nil)
return []rune(trimmed), nil
}
}
ansiProcessorRunes = func(data []rune) ([]rune, []ansiOffset) {
return ansiProcessor([]byte(string(data)))
}
}
// Chunk list
var chunkList *ChunkList
header := make([]string, 0, opts.HeaderLines)
if len(opts.WithNth) == 0 {
chunkList = NewChunkList(func(data []byte, index int) *Item {
if len(header) < opts.HeaderLines {
header = append(header, string(data))
eventBox.Set(EvtHeader, header)
return nil
}
runes, colors := ansiProcessor(data)
return &Item{
text: runes,
index: uint32(index),
colors: colors,
rank: Rank{0, 0, uint32(index)}}
})
} else {
chunkList = NewChunkList(func(data []byte, index int) *Item {
runes := util.BytesToRunes(data)
tokens := Tokenize(runes, opts.Delimiter)
trans := Transform(tokens, opts.WithNth)
if len(header) < opts.HeaderLines {
header = append(header, string(joinTokens(trans)))
eventBox.Set(EvtHeader, header)
return nil
}
item := Item{
text: joinTokens(trans),
origText: &runes,
index: uint32(index),
colors: nil,
rank: Rank{0, 0, uint32(index)}}
trimmed, colors := ansiProcessorRunes(item.text)
item.text = trimmed
item.colors = colors
return &item
})
}
// Reader
streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
if !streamingFilter {
reader := Reader{func(data []byte) bool {
return chunkList.Push(data)
}, eventBox, opts.ReadZero}
go reader.ReadSource()
}
// Matcher
patternBuilder := func(runes []rune) *Pattern {
return BuildPattern(
opts.Mode, opts.Case, opts.Tiebreak != byEnd,
opts.Nth, opts.Delimiter, runes)
}
matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
// Filtering mode
if opts.Filter != nil {
if opts.PrintQuery {
fmt.Println(*opts.Filter)
}
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}
reader.ReadSource()
} else {
eventBox.Unwatch(EvtReadNew)
eventBox.WaitFor(EvtReadFin)
snapshot, _ := chunkList.Snapshot()
merger, _ := matcher.scan(MatchRequest{
chunks: snapshot,
pattern: pattern})
for i := 0; i < merger.Length(); i++ {
fmt.Println(merger.Get(i).AsString(opts.Ansi))
found = true
}
}
if found {
os.Exit(exitOk)
}
os.Exit(exitNoMatch)
}
// Synchronous search
if opts.Sync {
eventBox.Unwatch(EvtReadNew)
eventBox.WaitFor(EvtReadFin)
}
// Go interactive
go matcher.Loop()
// Terminal I/O
terminal := NewTerminal(opts, eventBox)
deferred := opts.Select1 || opts.Exit0
go terminal.Loop()
if !deferred {
terminal.startChan <- true
}
// Event coordination
reading := true
ticks := 0
eventBox.Watch(EvtReadNew)
for {
delay := true
ticks++
eventBox.Wait(func(events *util.Events) {
defer events.Clear()
for evt, value := range *events {
switch evt {
case EvtReadNew, EvtReadFin:
reading = reading && evt == EvtReadNew
snapshot, count := chunkList.Snapshot()
terminal.UpdateCount(count, !reading)
matcher.Reset(snapshot, terminal.Input(), false, !reading, sort)
case EvtSearchNew:
switch val := value.(type) {
case bool:
sort = val
}
snapshot, _ := chunkList.Snapshot()
matcher.Reset(snapshot, terminal.Input(), true, !reading, sort)
delay = false
case EvtSearchProgress:
switch val := value.(type) {
case float32:
terminal.UpdateProgress(val)
}
case EvtHeader:
terminal.UpdateHeader(value.([]string))
case EvtSearchFin:
switch val := value.(type) {
case *Merger:
if deferred {
count := val.Length()
if opts.Select1 && count > 1 || opts.Exit0 && !opts.Select1 && count > 0 {
deferred = false
terminal.startChan <- true
} else if val.final {
if opts.Exit0 && count == 0 || opts.Select1 && count == 1 {
if opts.PrintQuery {
fmt.Println(opts.Query)
}
if len(opts.Expect) > 0 {
fmt.Println()
}
for i := 0; i < count; i++ {
fmt.Println(val.Get(i).AsString(opts.Ansi))
}
if count > 0 {
os.Exit(exitOk)
}
os.Exit(exitNoMatch)
}
deferred = false
terminal.startChan <- true
}
}
terminal.UpdateList(val)
}
}
}
})
if delay && reading {
dur := util.DurWithin(
time.Duration(ticks)*coordinatorDelayStep,
0, coordinatorDelayMax)
time.Sleep(dur)
}
}
}

556
src/curses/curses.go Normal file
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package curses
/*
#include <ncurses.h>
#include <locale.h>
#cgo LDFLAGS: -lncurses
*/
import "C"
import (
"fmt"
"os"
"os/signal"
"syscall"
"time"
"unicode/utf8"
)
// Types of user action
const (
Rune = iota
CtrlA
CtrlB
CtrlC
CtrlD
CtrlE
CtrlF
CtrlG
CtrlH
Tab
CtrlJ
CtrlK
CtrlL
CtrlM
CtrlN
CtrlO
CtrlP
CtrlQ
CtrlR
CtrlS
CtrlT
CtrlU
CtrlV
CtrlW
CtrlX
CtrlY
CtrlZ
ESC
Invalid
Mouse
BTab
BSpace
Del
PgUp
PgDn
Up
Down
Left
Right
Home
End
SLeft
SRight
F1
F2
F3
F4
AltBS
AltA
AltB
AltC
AltD
AltE
AltF
AltZ = AltA + 'z' - 'a'
)
// Pallete
const (
ColNormal = iota
ColPrompt
ColMatch
ColCurrent
ColCurrentMatch
ColSpinner
ColInfo
ColCursor
ColSelected
ColHeader
ColUser
)
const (
doubleClickDuration = 500 * time.Millisecond
)
type ColorTheme struct {
UseDefault bool
Fg int16
Bg int16
DarkBg int16
Prompt int16
Match int16
Current int16
CurrentMatch int16
Spinner int16
Info int16
Cursor int16
Selected int16
Header int16
}
type Event struct {
Type int
Char rune
MouseEvent *MouseEvent
}
type MouseEvent struct {
Y int
X int
S int
Down bool
Double bool
Mod bool
}
var (
_buf []byte
_in *os.File
_color func(int, bool) C.int
_colorMap map[int]int
_prevDownTime time.Time
_clickY []int
_screen *C.SCREEN
Default16 *ColorTheme
Dark256 *ColorTheme
Light256 *ColorTheme
FG int
CurrentFG int
BG int
DarkBG int
)
func init() {
_prevDownTime = time.Unix(0, 0)
_clickY = []int{}
_colorMap = make(map[int]int)
Default16 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: C.COLOR_BLACK,
Prompt: C.COLOR_BLUE,
Match: C.COLOR_GREEN,
Current: C.COLOR_YELLOW,
CurrentMatch: C.COLOR_GREEN,
Spinner: C.COLOR_GREEN,
Info: C.COLOR_WHITE,
Cursor: C.COLOR_RED,
Selected: C.COLOR_MAGENTA,
Header: C.COLOR_CYAN}
Dark256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: 236,
Prompt: 110,
Match: 108,
Current: 254,
CurrentMatch: 151,
Spinner: 148,
Info: 144,
Cursor: 161,
Selected: 168,
Header: 109}
Light256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
DarkBg: 251,
Prompt: 25,
Match: 66,
Current: 237,
CurrentMatch: 23,
Spinner: 65,
Info: 101,
Cursor: 161,
Selected: 168,
Header: 31}
}
func attrColored(pair int, bold bool) C.int {
var attr C.int
if pair > ColNormal {
attr = C.COLOR_PAIR(C.int(pair))
}
if bold {
attr = attr | C.A_BOLD
}
return attr
}
func attrMono(pair int, bold bool) C.int {
var attr C.int
switch pair {
case ColCurrent:
if bold {
attr = C.A_REVERSE
}
case ColMatch:
attr = C.A_UNDERLINE
case ColCurrentMatch:
attr = C.A_UNDERLINE | C.A_REVERSE
}
if bold {
attr = attr | C.A_BOLD
}
return attr
}
func MaxX() int {
return int(C.COLS)
}
func MaxY() int {
return int(C.LINES)
}
func getch(nonblock bool) int {
b := make([]byte, 1)
syscall.SetNonblock(int(_in.Fd()), nonblock)
_, err := _in.Read(b)
if err != nil {
return -1
}
return int(b[0])
}
func Init(theme *ColorTheme, black bool, mouse bool) {
{
in, err := os.OpenFile("/dev/tty", syscall.O_RDONLY, 0)
if err != nil {
panic("Failed to open /dev/tty")
}
_in = in
// Break STDIN
// syscall.Dup2(int(in.Fd()), int(os.Stdin.Fd()))
}
C.setlocale(C.LC_ALL, C.CString(""))
_screen = C.newterm(nil, C.stderr, C.stdin)
if _screen == nil {
fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
os.Exit(2)
}
C.set_term(_screen)
if mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
}
C.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(2)
}()
if theme != nil {
C.start_color()
initPairs(theme, black)
_color = attrColored
} else {
_color = attrMono
}
}
func initPairs(theme *ColorTheme, black bool) {
fg := C.short(theme.Fg)
bg := C.short(theme.Bg)
if black {
bg = C.COLOR_BLACK
} else if theme.UseDefault {
fg = -1
bg = -1
C.use_default_colors()
}
if theme.UseDefault {
FG = -1
BG = -1
} else {
FG = int(fg)
BG = int(bg)
C.assume_default_colors(C.int(theme.Fg), C.int(bg))
}
CurrentFG = int(theme.Current)
DarkBG = int(theme.DarkBg)
darkBG := C.short(DarkBG)
C.init_pair(ColPrompt, C.short(theme.Prompt), bg)
C.init_pair(ColMatch, C.short(theme.Match), bg)
C.init_pair(ColCurrent, C.short(theme.Current), darkBG)
C.init_pair(ColCurrentMatch, C.short(theme.CurrentMatch), darkBG)
C.init_pair(ColSpinner, C.short(theme.Spinner), bg)
C.init_pair(ColInfo, C.short(theme.Info), bg)
C.init_pair(ColCursor, C.short(theme.Cursor), darkBG)
C.init_pair(ColSelected, C.short(theme.Selected), darkBG)
C.init_pair(ColHeader, C.short(theme.Header), bg)
}
func Close() {
C.endwin()
C.delscreen(_screen)
}
func GetBytes() []byte {
c := getch(false)
_buf = append(_buf, byte(c))
for {
c = getch(true)
if c == -1 {
break
}
_buf = append(_buf, byte(c))
}
return _buf
}
// 27 (91 79) 77 type x y
func mouseSequence(sz *int) Event {
if len(_buf) < 6 {
return Event{Invalid, 0, nil}
}
*sz = 6
switch _buf[3] {
case 32, 36, 40, 48, // mouse-down / shift / cmd / ctrl
35, 39, 43, 51: // mouse-up / shift / cmd / ctrl
mod := _buf[3] >= 36
down := _buf[3]%2 == 0
x := int(_buf[4] - 33)
y := int(_buf[5] - 33)
double := false
if down {
now := time.Now()
if now.Sub(_prevDownTime) < doubleClickDuration {
_clickY = append(_clickY, y)
} else {
_clickY = []int{y}
}
_prevDownTime = now
} else {
if len(_clickY) > 1 && _clickY[0] == _clickY[1] &&
time.Now().Sub(_prevDownTime) < doubleClickDuration {
double = true
}
}
return Event{Mouse, 0, &MouseEvent{y, x, 0, down, double, mod}}
case 96, 100, 104, 112, // scroll-up / shift / cmd / ctrl
97, 101, 105, 113: // scroll-down / shift / cmd / ctrl
mod := _buf[3] >= 100
s := 1 - int(_buf[3]%2)*2
return Event{Mouse, 0, &MouseEvent{0, 0, s, false, false, mod}}
}
return Event{Invalid, 0, nil}
}
func escSequence(sz *int) Event {
if len(_buf) < 2 {
return Event{ESC, 0, nil}
}
*sz = 2
switch _buf[1] {
case 98:
return Event{AltB, 0, nil}
case 100:
return Event{AltD, 0, nil}
case 102:
return Event{AltF, 0, nil}
case 127:
return Event{AltBS, 0, nil}
case 91, 79:
if len(_buf) < 3 {
return Event{Invalid, 0, nil}
}
*sz = 3
switch _buf[2] {
case 68:
return Event{Left, 0, nil}
case 67:
return Event{Right, 0, nil}
case 66:
return Event{Down, 0, nil}
case 65:
return Event{Up, 0, nil}
case 90:
return Event{BTab, 0, nil}
case 72:
return Event{Home, 0, nil}
case 70:
return Event{End, 0, nil}
case 77:
return mouseSequence(sz)
case 80:
return Event{F1, 0, nil}
case 81:
return Event{F2, 0, nil}
case 82:
return Event{F3, 0, nil}
case 83:
return Event{F4, 0, nil}
case 49, 50, 51, 52, 53, 54:
if len(_buf) < 4 {
return Event{Invalid, 0, nil}
}
*sz = 4
switch _buf[2] {
case 50:
return Event{Invalid, 0, nil} // INS
case 51:
return Event{Del, 0, nil}
case 52:
return Event{End, 0, nil}
case 53:
return Event{PgUp, 0, nil}
case 54:
return Event{PgDn, 0, nil}
case 49:
switch _buf[3] {
case 126:
return Event{Home, 0, nil}
case 59:
if len(_buf) != 6 {
return Event{Invalid, 0, nil}
}
*sz = 6
switch _buf[4] {
case 50:
switch _buf[5] {
case 68:
return Event{Home, 0, nil}
case 67:
return Event{End, 0, nil}
}
case 53:
switch _buf[5] {
case 68:
return Event{SLeft, 0, nil}
case 67:
return Event{SRight, 0, nil}
}
} // _buf[4]
} // _buf[3]
} // _buf[2]
} // _buf[2]
} // _buf[1]
if _buf[1] >= 'a' && _buf[1] <= 'z' {
return Event{AltA + int(_buf[1]) - 'a', 0, nil}
}
return Event{Invalid, 0, nil}
}
func GetChar() Event {
if len(_buf) == 0 {
_buf = GetBytes()
}
if len(_buf) == 0 {
panic("Empty _buffer")
}
sz := 1
defer func() {
_buf = _buf[sz:]
}()
switch _buf[0] {
case CtrlC:
return Event{CtrlC, 0, nil}
case CtrlG:
return Event{CtrlG, 0, nil}
case CtrlQ:
return Event{CtrlQ, 0, nil}
case 127:
return Event{BSpace, 0, nil}
case ESC:
return escSequence(&sz)
}
// CTRL-A ~ CTRL-Z
if _buf[0] <= CtrlZ {
return Event{int(_buf[0]), 0, nil}
}
r, rsz := utf8.DecodeRune(_buf)
if r == utf8.RuneError {
return Event{ESC, 0, nil}
}
sz = rsz
return Event{Rune, r, nil}
}
func Move(y int, x int) {
C.move(C.int(y), C.int(x))
}
func MoveAndClear(y int, x int) {
Move(y, x)
C.clrtoeol()
}
func Print(text string) {
C.addstr(C.CString(text))
}
func CPrint(pair int, bold bool, text string) {
attr := _color(pair, bold)
C.attron(attr)
Print(text)
C.attroff(attr)
}
func Clear() {
C.clear()
}
func Endwin() {
C.endwin()
}
func Refresh() {
C.refresh()
}
func PairFor(fg int, bg int) int {
key := (fg << 8) + bg
if found, prs := _colorMap[key]; prs {
return found
}
id := len(_colorMap) + ColUser
C.init_pair(C.short(id), C.short(fg), C.short(bg))
_colorMap[key] = id
return id
}

14
src/curses/curses_test.go Normal file
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package curses
import (
"testing"
)
func TestPairFor(t *testing.T) {
if PairFor(30, 50) != PairFor(30, 50) {
t.Fail()
}
if PairFor(-1, 10) != PairFor(-1, 10) {
t.Fail()
}
}

7
src/fzf/main.go Normal file
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package main
import "github.com/junegunn/fzf/src"
func main() {
fzf.Run(fzf.ParseOptions())
}

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

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

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

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

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package fzf
import (
"fmt"
"runtime"
"sort"
"sync"
"time"
"github.com/junegunn/fzf/src/util"
)
// MatchRequest represents a search request
type MatchRequest struct {
chunks []*Chunk
pattern *Pattern
final bool
sort bool
}
// Matcher is responsible for performing search
type Matcher struct {
patternBuilder func([]rune) *Pattern
sort bool
tac bool
eventBox *util.EventBox
reqBox *util.EventBox
partitions int
mergerCache map[string]*Merger
}
const (
reqRetry util.EventType = iota
reqReset
)
// NewMatcher returns a new Matcher
func NewMatcher(patternBuilder func([]rune) *Pattern,
sort bool, tac bool, eventBox *util.EventBox) *Matcher {
return &Matcher{
patternBuilder: patternBuilder,
sort: sort,
tac: tac,
eventBox: eventBox,
reqBox: util.NewEventBox(),
partitions: runtime.NumCPU(),
mergerCache: make(map[string]*Merger)}
}
// Loop puts Matcher in action
func (m *Matcher) Loop() {
prevCount := 0
for {
var request MatchRequest
m.reqBox.Wait(func(events *util.Events) {
for _, val := range *events {
switch val := val.(type) {
case MatchRequest:
request = val
default:
panic(fmt.Sprintf("Unexpected type: %T", val))
}
}
events.Clear()
})
if request.sort != m.sort {
m.sort = request.sort
m.mergerCache = make(map[string]*Merger)
clearChunkCache()
}
// Restart search
patternString := request.pattern.AsString()
var merger *Merger
cancelled := false
count := CountItems(request.chunks)
foundCache := false
if count == prevCount {
// Look up mergerCache
if cached, found := m.mergerCache[patternString]; found {
foundCache = true
merger = cached
}
} else {
// Invalidate mergerCache
prevCount = count
m.mergerCache = make(map[string]*Merger)
}
if !foundCache {
merger, cancelled = m.scan(request)
}
if !cancelled {
if merger.cacheable() {
m.mergerCache[patternString] = merger
}
merger.final = request.final
m.eventBox.Set(EvtSearchFin, merger)
}
}
}
func (m *Matcher) sliceChunks(chunks []*Chunk) [][]*Chunk {
perSlice := len(chunks) / m.partitions
// No need to parallelize
if perSlice == 0 {
return [][]*Chunk{chunks}
}
slices := make([][]*Chunk, m.partitions)
for i := 0; i < m.partitions; i++ {
start := i * perSlice
end := start + perSlice
if i == m.partitions-1 {
end = len(chunks)
}
slices[i] = chunks[start:end]
}
return slices
}
type partialResult struct {
index int
matches []*Item
}
func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
startedAt := time.Now()
numChunks := len(request.chunks)
if numChunks == 0 {
return EmptyMerger, false
}
pattern := request.pattern
if pattern.IsEmpty() {
return PassMerger(&request.chunks, m.tac), false
}
cancelled := util.NewAtomicBool(false)
slices := m.sliceChunks(request.chunks)
numSlices := len(slices)
resultChan := make(chan partialResult, numSlices)
countChan := make(chan int, numChunks)
waitGroup := sync.WaitGroup{}
for idx, chunks := range slices {
waitGroup.Add(1)
go func(idx int, chunks []*Chunk) {
defer func() { waitGroup.Done() }()
sliceMatches := []*Item{}
for _, chunk := range chunks {
matches := request.pattern.Match(chunk)
sliceMatches = append(sliceMatches, matches...)
if cancelled.Get() {
return
}
countChan <- len(matches)
}
if m.sort {
if m.tac {
sort.Sort(ByRelevanceTac(sliceMatches))
} else {
sort.Sort(ByRelevance(sliceMatches))
}
}
resultChan <- partialResult{idx, sliceMatches}
}(idx, chunks)
}
wait := func() bool {
cancelled.Set(true)
waitGroup.Wait()
return true
}
count := 0
matchCount := 0
for matchesInChunk := range countChan {
count++
matchCount += matchesInChunk
if count == numChunks {
break
}
if m.reqBox.Peek(reqReset) {
return nil, wait()
}
if time.Now().Sub(startedAt) > progressMinDuration {
m.eventBox.Set(EvtSearchProgress, float32(count)/float32(numChunks))
}
}
partialResults := make([][]*Item, numSlices)
for range slices {
partialResult := <-resultChan
partialResults[partialResult.index] = partialResult.matches
}
return NewMerger(partialResults, m.sort, m.tac), false
}
// Reset is called to interrupt/signal the ongoing search
func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool) {
pattern := m.patternBuilder(patternRunes)
var event util.EventType
if cancel {
event = reqReset
} else {
event = reqRetry
}
m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort})
}

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package fzf
import "fmt"
// Merger with no data
var EmptyMerger = NewMerger([][]*Item{}, false, false)
// Merger holds a set of locally sorted lists of items and provides the view of
// a single, globally-sorted list
type Merger struct {
lists [][]*Item
merged []*Item
chunks *[]*Chunk
cursors []int
sorted bool
tac bool
final bool
count int
}
// PassMerger returns a new Merger that simply returns the items in the
// original order
func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
mg := Merger{
chunks: chunks,
tac: tac,
count: 0}
for _, chunk := range *mg.chunks {
mg.count += len(*chunk)
}
return &mg
}
// NewMerger returns a new Merger
func NewMerger(lists [][]*Item, sorted bool, tac bool) *Merger {
mg := Merger{
lists: lists,
merged: []*Item{},
chunks: nil,
cursors: make([]int, len(lists)),
sorted: sorted,
tac: tac,
final: false,
count: 0}
for _, list := range mg.lists {
mg.count += len(list)
}
return &mg
}
// Length returns the number of items
func (mg *Merger) Length() int {
return mg.count
}
// Get returns the pointer to the Item object indexed by the given integer
func (mg *Merger) Get(idx int) *Item {
if mg.chunks != nil {
if mg.tac {
idx = mg.count - idx - 1
}
chunk := (*mg.chunks)[idx/chunkSize]
return (*chunk)[idx%chunkSize]
}
if mg.sorted {
return mg.mergedGet(idx)
}
if mg.tac {
idx = mg.count - idx - 1
}
for _, list := range mg.lists {
numItems := len(list)
if idx < numItems {
return list[idx]
}
idx -= numItems
}
panic(fmt.Sprintf("Index out of bounds (unsorted, %d/%d)", idx, mg.count))
}
func (mg *Merger) cacheable() bool {
return mg.count < mergerCacheMax
}
func (mg *Merger) mergedGet(idx int) *Item {
for i := len(mg.merged); i <= idx; i++ {
minRank := Rank{0, 0, 0}
minIdx := -1
for listIdx, list := range mg.lists {
cursor := mg.cursors[listIdx]
if cursor < 0 || cursor == len(list) {
mg.cursors[listIdx] = -1
continue
}
if cursor >= 0 {
rank := list[cursor].Rank(false)
if minIdx < 0 || compareRanks(rank, minRank, mg.tac) {
minRank = rank
minIdx = listIdx
}
}
mg.cursors[listIdx] = cursor
}
if minIdx >= 0 {
chosen := mg.lists[minIdx]
mg.merged = append(mg.merged, chosen[mg.cursors[minIdx]])
mg.cursors[minIdx]++
} else {
panic(fmt.Sprintf("Index out of bounds (sorted, %d/%d)", i, mg.count))
}
}
return mg.merged[idx]
}

93
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package fzf
import (
"fmt"
"math/rand"
"sort"
"testing"
)
func assert(t *testing.T, cond bool, msg ...string) {
if !cond {
t.Error(msg)
}
}
func randItem() *Item {
str := fmt.Sprintf("%d", rand.Uint32())
offsets := make([]Offset, rand.Int()%3)
for idx := range offsets {
sidx := int32(rand.Uint32() % 20)
eidx := sidx + int32(rand.Uint32()%20)
offsets[idx] = Offset{sidx, eidx}
}
return &Item{
text: []rune(str),
index: rand.Uint32(),
offsets: offsets}
}
func TestEmptyMerger(t *testing.T) {
assert(t, EmptyMerger.Length() == 0, "Not empty")
assert(t, EmptyMerger.count == 0, "Invalid count")
assert(t, len(EmptyMerger.lists) == 0, "Invalid lists")
assert(t, len(EmptyMerger.merged) == 0, "Invalid merged list")
}
func buildLists(partiallySorted bool) ([][]*Item, []*Item) {
numLists := 4
lists := make([][]*Item, numLists)
cnt := 0
for i := 0; i < numLists; i++ {
numItems := rand.Int() % 20
cnt += numItems
lists[i] = make([]*Item, numItems)
for j := 0; j < numItems; j++ {
item := randItem()
lists[i][j] = item
}
if partiallySorted {
sort.Sort(ByRelevance(lists[i]))
}
}
items := []*Item{}
for _, list := range lists {
items = append(items, list...)
}
return lists, items
}
func TestMergerUnsorted(t *testing.T) {
lists, items := buildLists(false)
cnt := len(items)
// Not sorted: same order
mg := NewMerger(lists, false, false)
assert(t, cnt == mg.Length(), "Invalid Length")
for i := 0; i < cnt; i++ {
assert(t, items[i] == mg.Get(i), "Invalid Get")
}
}
func TestMergerSorted(t *testing.T) {
lists, items := buildLists(true)
cnt := len(items)
// Sorted sorted order
mg := NewMerger(lists, true, false)
assert(t, cnt == mg.Length(), "Invalid Length")
sort.Sort(ByRelevance(items))
for i := 0; i < cnt; i++ {
if items[i] != mg.Get(i) {
t.Error("Not sorted", items[i], mg.Get(i))
}
}
// Inverse order
mg2 := NewMerger(lists, true, false)
for i := cnt - 1; i >= 0; i-- {
if items[i] != mg2.Get(i) {
t.Error("Not sorted", items[i], mg2.Get(i))
}
}
}

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

318
src/options_test.go Normal file
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package fzf
import (
"fmt"
"testing"
"github.com/junegunn/fzf/src/curses"
)
func TestDelimiterRegex(t *testing.T) {
// Valid regex
delim := delimiterRegexp(".")
if delim.regex == nil || delim.str != nil {
t.Error(delim)
}
// Broken regex -> string
delim = delimiterRegexp("[0-9")
if delim.regex != nil || *delim.str != "[0-9" {
t.Error(delim)
}
// Valid regex
delim = delimiterRegexp("[0-9]")
if delim.regex.String() != "[0-9]" || delim.str != nil {
t.Error(delim)
}
// Tab character
delim = delimiterRegexp("\t")
if delim.regex != nil || *delim.str != "\t" {
t.Error(delim)
}
// Tab expression
delim = delimiterRegexp("\\t")
if delim.regex != nil || *delim.str != "\t" {
t.Error(delim)
}
// Tabs -> regex
delim = delimiterRegexp("\t+")
if delim.regex == nil || delim.str != nil {
t.Error(delim)
}
}
func TestDelimiterRegexString(t *testing.T) {
delim := delimiterRegexp("*")
tokens := Tokenize([]rune("-*--*---**---"), delim)
if delim.regex != nil ||
string(tokens[0].text) != "-*" ||
string(tokens[1].text) != "--*" ||
string(tokens[2].text) != "---*" ||
string(tokens[3].text) != "*" ||
string(tokens[4].text) != "---" {
t.Errorf("%s %s %d", delim, tokens, len(tokens))
}
}
func TestDelimiterRegexRegex(t *testing.T) {
delim := delimiterRegexp("--\\*")
tokens := Tokenize([]rune("-*--*---**---"), delim)
if delim.str != nil ||
string(tokens[0].text) != "-*--*" ||
string(tokens[1].text) != "---*" ||
string(tokens[2].text) != "*---" {
t.Errorf("%s %d", tokens, len(tokens))
}
}
func TestSplitNth(t *testing.T) {
{
ranges := splitNth("..")
if len(ranges) != 1 ||
ranges[0].begin != rangeEllipsis ||
ranges[0].end != rangeEllipsis {
t.Errorf("%s", ranges)
}
}
{
ranges := splitNth("..3,1..,2..3,4..-1,-3..-2,..,2,-2,2..-2,1..-1")
if len(ranges) != 10 ||
ranges[0].begin != rangeEllipsis || ranges[0].end != 3 ||
ranges[1].begin != rangeEllipsis || ranges[1].end != rangeEllipsis ||
ranges[2].begin != 2 || ranges[2].end != 3 ||
ranges[3].begin != 4 || ranges[3].end != rangeEllipsis ||
ranges[4].begin != -3 || ranges[4].end != -2 ||
ranges[5].begin != rangeEllipsis || ranges[5].end != rangeEllipsis ||
ranges[6].begin != 2 || ranges[6].end != 2 ||
ranges[7].begin != -2 || ranges[7].end != -2 ||
ranges[8].begin != 2 || ranges[8].end != -2 ||
ranges[9].begin != rangeEllipsis || ranges[9].end != rangeEllipsis {
t.Errorf("%s", ranges)
}
}
}
func TestIrrelevantNth(t *testing.T) {
{
opts := defaultOptions()
words := []string{"--nth", "..", "-x"}
parseOptions(opts, words)
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"}} {
{
opts := defaultOptions()
parseOptions(opts, words)
if len(opts.Nth) != 0 {
t.Errorf("nth should be empty: %s", opts.Nth)
}
}
{
opts := defaultOptions()
words = append(words, "-x")
parseOptions(opts, words)
if len(opts.Nth) != 2 {
t.Errorf("nth should not be empty: %s", opts.Nth)
}
}
}
}
func TestParseKeys(t *testing.T) {
pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g", "")
check := func(i int, s string) {
if pairs[i] != s {
t.Errorf("%s != %s", pairs[i], s)
}
}
if len(pairs) != 9 {
t.Error(9)
}
check(curses.CtrlZ, "ctrl-z")
check(curses.AltZ, "alt-z")
check(curses.F2, "f2")
check(curses.AltZ+'@', "@")
check(curses.AltA, "Alt-a")
check(curses.AltZ+'!', "!")
check(curses.CtrlA+'g'-'a', "ctrl-G")
check(curses.AltZ+'J', "J")
check(curses.AltZ+'g', "g")
// Synonyms
pairs = parseKeyChords("enter,Return,space,tab,btab,esc,up,down,left,right", "")
if len(pairs) != 9 {
t.Error(9)
}
check(curses.CtrlM, "Return")
check(curses.AltZ+' ', "space")
check(curses.Tab, "tab")
check(curses.BTab, "btab")
check(curses.ESC, "esc")
check(curses.Up, "up")
check(curses.Down, "down")
check(curses.Left, "left")
check(curses.Right, "right")
pairs = parseKeyChords("Tab,Ctrl-I,PgUp,page-up,pgdn,Page-Down,Home,End,Alt-BS,Alt-BSpace,shift-left,shift-right,btab,shift-tab,return,Enter,bspace", "")
if len(pairs) != 11 {
t.Error(11)
}
check(curses.Tab, "Ctrl-I")
check(curses.PgUp, "page-up")
check(curses.PgDn, "Page-Down")
check(curses.Home, "Home")
check(curses.End, "End")
check(curses.AltBS, "Alt-BSpace")
check(curses.SLeft, "shift-left")
check(curses.SRight, "shift-right")
check(curses.BTab, "shift-tab")
check(curses.CtrlM, "Enter")
check(curses.BSpace, "bspace")
}
func TestParseKeysWithComma(t *testing.T) {
checkN := func(a int, b int) {
if a != b {
t.Errorf("%d != %d", a, b)
}
}
check := func(pairs map[int]string, i int, s string) {
if pairs[i] != s {
t.Errorf("%s != %s", pairs[i], s)
}
}
pairs := parseKeyChords(",", "")
checkN(len(pairs), 1)
check(pairs, curses.AltZ+',', ",")
pairs = parseKeyChords(",,a,b", "")
checkN(len(pairs), 3)
check(pairs, curses.AltZ+'a', "a")
check(pairs, curses.AltZ+'b', "b")
check(pairs, curses.AltZ+',', ",")
pairs = parseKeyChords("a,b,,", "")
checkN(len(pairs), 3)
check(pairs, curses.AltZ+'a', "a")
check(pairs, curses.AltZ+'b', "b")
check(pairs, curses.AltZ+',', ",")
pairs = parseKeyChords("a,,,b", "")
checkN(len(pairs), 3)
check(pairs, curses.AltZ+'a', "a")
check(pairs, curses.AltZ+'b', "b")
check(pairs, curses.AltZ+',', ",")
pairs = parseKeyChords("a,,,b,c", "")
checkN(len(pairs), 4)
check(pairs, curses.AltZ+'a', "a")
check(pairs, curses.AltZ+'b', "b")
check(pairs, curses.AltZ+'c', "c")
check(pairs, curses.AltZ+',', ",")
pairs = parseKeyChords(",,,", "")
checkN(len(pairs), 1)
check(pairs, curses.AltZ+',', ",")
}
func TestBind(t *testing.T) {
check := func(action actionType, expected actionType) {
if action != expected {
t.Errorf("%d != %d", action, expected)
}
}
checkString := func(action string, expected string) {
if action != expected {
t.Errorf("%d != %d", action, expected)
}
}
keymap := defaultKeymap()
execmap := make(map[int]string)
check(actBeginningOfLine, keymap[curses.CtrlA])
keymap, execmap, toggleSort :=
parseKeymap(keymap, execmap, false,
"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down,"+
"f1:execute(ls {}),f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
"alt-a:execute@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};"+
",,:abort,::accept,X:execute:\nfoobar,Y:execute(baz)")
if !toggleSort {
t.Errorf("toggleSort not set")
}
check(actKillLine, keymap[curses.CtrlA])
check(actToggleSort, keymap[curses.CtrlB])
check(actPageUp, keymap[curses.AltZ+'c'])
check(actAbort, keymap[curses.AltZ+','])
check(actAccept, keymap[curses.AltZ+':'])
check(actPageDown, keymap[curses.AltZ])
check(actExecute, keymap[curses.F1])
check(actExecute, keymap[curses.F2])
check(actExecute, keymap[curses.F3])
check(actExecute, keymap[curses.F4])
checkString("ls {}", execmap[curses.F1])
checkString("echo {}, {}, {}", execmap[curses.F2])
checkString("echo '({})'", execmap[curses.F3])
checkString("less {}", execmap[curses.F4])
checkString("echo (,),[,],/,:,;,%,{}", execmap[curses.AltA])
checkString("echo (,),[,],/,:,@,%,{}", execmap[curses.AltB])
checkString("\nfoobar,Y:execute(baz)", execmap[curses.AltZ+'X'])
for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
keymap, execmap, toggleSort =
parseKeymap(keymap, execmap, false, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
checkString("foobar", execmap[curses.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0])])
}
keymap, execmap, toggleSort = parseKeymap(keymap, execmap, false, "f1:abort")
if toggleSort {
t.Errorf("toggleSort set")
}
check(actAbort, keymap[curses.F1])
}
func TestColorSpec(t *testing.T) {
theme := curses.Dark256
dark := parseTheme(theme, "dark")
if *dark != *theme {
t.Errorf("colors should be equivalent")
}
if dark == theme {
t.Errorf("point should not be equivalent")
}
light := parseTheme(theme, "dark,light")
if *light == *theme {
t.Errorf("should not be equivalent")
}
if *light != *curses.Light256 {
t.Errorf("colors should be equivalent")
}
if light == theme {
t.Errorf("point should not be equivalent")
}
customized := parseTheme(theme, "fg:231,bg:232")
if customized.Fg != 231 || customized.Bg != 232 {
t.Errorf("color not customized")
}
if *curses.Dark256 == *customized {
t.Errorf("colors should not be equivalent")
}
customized.Fg = curses.Dark256.Fg
customized.Bg = curses.Dark256.Bg
if *curses.Dark256 == *customized {
t.Errorf("colors should now be equivalent")
}
customized = parseTheme(theme, "fg:231,dark,bg:232")
if customized.Fg != curses.Dark256.Fg || customized.Bg == curses.Dark256.Bg {
t.Errorf("color not customized")
}
if customized.UseDefault {
t.Errorf("not using default colors")
}
if !curses.Dark256.UseDefault {
t.Errorf("using default colors")
}
}

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package fzf
import (
"regexp"
"sort"
"strings"
"github.com/junegunn/fzf/src/algo"
)
// fuzzy
// 'exact
// ^exact-prefix
// exact-suffix$
// !not-fuzzy
// !'not-exact
// !^not-exact-prefix
// !not-exact-suffix$
type termType int
const (
termFuzzy termType = iota
termExact
termPrefix
termSuffix
termEqual
)
type term struct {
typ termType
inv bool
text []rune
caseSensitive bool
origText []rune
}
// Pattern represents search pattern
type Pattern struct {
mode Mode
caseSensitive bool
forward bool
text []rune
terms []term
hasInvTerm bool
delimiter Delimiter
nth []Range
procFun map[termType]func(bool, bool, []rune, []rune) (int, int)
}
var (
_patternCache map[string]*Pattern
_splitRegex *regexp.Regexp
_cache ChunkCache
)
func init() {
_splitRegex = regexp.MustCompile("\\s+")
clearPatternCache()
clearChunkCache()
}
func clearPatternCache() {
// We can uniquely identify the pattern for a given string since
// mode and caseMode do not change while the program is running
_patternCache = make(map[string]*Pattern)
}
func clearChunkCache() {
_cache = NewChunkCache()
}
// BuildPattern builds Pattern object from the given arguments
func BuildPattern(mode Mode, caseMode Case, forward bool,
nth []Range, delimiter Delimiter, runes []rune) *Pattern {
var asString string
switch mode {
case ModeExtended, ModeExtendedExact:
asString = strings.Trim(string(runes), " ")
default:
asString = string(runes)
}
cached, found := _patternCache[asString]
if found {
return cached
}
caseSensitive, hasInvTerm := true, false
terms := []term{}
switch mode {
case ModeExtended, ModeExtendedExact:
terms = parseTerms(mode, caseMode, asString)
for _, term := range terms {
if term.inv {
hasInvTerm = true
}
}
default:
lowerString := strings.ToLower(asString)
caseSensitive = caseMode == CaseRespect ||
caseMode == CaseSmart && lowerString != asString
if !caseSensitive {
asString = lowerString
}
}
ptr := &Pattern{
mode: mode,
caseSensitive: caseSensitive,
forward: forward,
text: []rune(asString),
terms: terms,
hasInvTerm: hasInvTerm,
nth: nth,
delimiter: delimiter,
procFun: make(map[termType]func(bool, bool, []rune, []rune) (int, int))}
ptr.procFun[termFuzzy] = algo.FuzzyMatch
ptr.procFun[termEqual] = algo.EqualMatch
ptr.procFun[termExact] = algo.ExactMatchNaive
ptr.procFun[termPrefix] = algo.PrefixMatch
ptr.procFun[termSuffix] = algo.SuffixMatch
_patternCache[asString] = ptr
return ptr
}
func parseTerms(mode Mode, caseMode Case, str string) []term {
tokens := _splitRegex.Split(str, -1)
terms := []term{}
for _, token := range tokens {
typ, inv, text := termFuzzy, false, token
lowerText := strings.ToLower(text)
caseSensitive := caseMode == CaseRespect ||
caseMode == CaseSmart && text != lowerText
if !caseSensitive {
text = lowerText
}
origText := []rune(text)
if mode == ModeExtendedExact {
typ = termExact
}
if strings.HasPrefix(text, "!") {
inv = true
text = text[1:]
}
if strings.HasPrefix(text, "'") {
if mode == ModeExtended {
typ = termExact
text = text[1:]
} else if mode == ModeExtendedExact {
typ = termFuzzy
text = text[1:]
}
} else if strings.HasPrefix(text, "^") {
if strings.HasSuffix(text, "$") {
typ = termEqual
text = text[1 : len(text)-1]
} else {
typ = termPrefix
text = text[1:]
}
} else if strings.HasSuffix(text, "$") {
typ = termSuffix
text = text[:len(text)-1]
}
if len(text) > 0 {
terms = append(terms, term{
typ: typ,
inv: inv,
text: []rune(text),
caseSensitive: caseSensitive,
origText: origText})
}
}
return terms
}
// IsEmpty returns true if the pattern is effectively empty
func (p *Pattern) IsEmpty() bool {
if p.mode == ModeFuzzy {
return len(p.text) == 0
}
return len(p.terms) == 0
}
// AsString returns the search query in string type
func (p *Pattern) AsString() string {
return string(p.text)
}
// CacheKey is used to build string to be used as the key of result cache
func (p *Pattern) CacheKey() string {
if p.mode == ModeFuzzy {
return p.AsString()
}
cacheableTerms := []string{}
for _, term := range p.terms {
if term.inv {
continue
}
cacheableTerms = append(cacheableTerms, string(term.origText))
}
return strings.Join(cacheableTerms, " ")
}
// Match returns the list of matches Items in the given Chunk
func (p *Pattern) Match(chunk *Chunk) []*Item {
space := chunk
// ChunkCache: Exact match
cacheKey := p.CacheKey()
if !p.hasInvTerm { // Because we're excluding Inv-term from cache key
if cached, found := _cache.Find(chunk, cacheKey); found {
return cached
}
}
// ChunkCache: Prefix/suffix match
Loop:
for idx := 1; idx < len(cacheKey); idx++ {
// [---------| ] | [ |---------]
// [--------| ] | [ |--------]
// [-------| ] | [ |-------]
prefix := cacheKey[:len(cacheKey)-idx]
suffix := cacheKey[idx:]
for _, substr := range [2]*string{&prefix, &suffix} {
if cached, found := _cache.Find(chunk, *substr); found {
cachedChunk := Chunk(cached)
space = &cachedChunk
break Loop
}
}
}
matches := p.matchChunk(space)
if !p.hasInvTerm {
_cache.Add(chunk, cacheKey, matches)
}
return matches
}
func (p *Pattern) matchChunk(chunk *Chunk) []*Item {
matches := []*Item{}
if p.mode == ModeFuzzy {
for _, item := range *chunk {
if sidx, eidx := p.fuzzyMatch(item); sidx >= 0 {
matches = append(matches,
dupItem(item, []Offset{Offset{int32(sidx), int32(eidx)}}))
}
}
} else {
for _, item := range *chunk {
if offsets := p.extendedMatch(item); len(offsets) == len(p.terms) {
matches = append(matches, dupItem(item, offsets))
}
}
}
return matches
}
// MatchItem returns true if the Item is a match
func (p *Pattern) MatchItem(item *Item) bool {
if p.mode == ModeFuzzy {
sidx, _ := p.fuzzyMatch(item)
return sidx >= 0
}
offsets := p.extendedMatch(item)
return len(offsets) == len(p.terms)
}
func dupItem(item *Item, offsets []Offset) *Item {
sort.Sort(ByOrder(offsets))
return &Item{
text: item.text,
origText: item.origText,
transformed: item.transformed,
index: item.index,
offsets: offsets,
colors: item.colors,
rank: Rank{0, 0, item.index}}
}
func (p *Pattern) fuzzyMatch(item *Item) (int, int) {
input := p.prepareInput(item)
return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.forward, p.text)
}
func (p *Pattern) extendedMatch(item *Item) []Offset {
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, p.forward, term.text); sidx >= 0 {
if term.inv {
break
}
offsets = append(offsets, Offset{int32(sidx), int32(eidx)})
} else if term.inv {
offsets = append(offsets, Offset{0, 0})
}
}
return offsets
}
func (p *Pattern) prepareInput(item *Item) []Token {
if item.transformed != nil {
return item.transformed
}
var ret []Token
if len(p.nth) > 0 {
tokens := Tokenize(item.text, p.delimiter)
ret = Transform(tokens, p.nth)
} else {
ret = []Token{Token{text: item.text, prefixLength: 0}}
}
item.transformed = ret
return ret
}
func (p *Pattern) iter(pfun func(bool, bool, []rune, []rune) (int, int),
tokens []Token, caseSensitive bool, forward bool, pattern []rune) (int, int) {
for _, part := range tokens {
prefixLength := part.prefixLength
if sidx, eidx := pfun(caseSensitive, forward, part.text, pattern); sidx >= 0 {
return sidx + prefixLength, eidx + prefixLength
}
}
return -1, -1
}

132
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package fzf
import (
"reflect"
"testing"
"github.com/junegunn/fzf/src/algo"
)
func TestParseTermsExtended(t *testing.T) {
terms := parseTerms(ModeExtended, CaseSmart,
"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ ^iii$")
if len(terms) != 9 ||
terms[0].typ != termFuzzy || terms[0].inv ||
terms[1].typ != termExact || terms[1].inv ||
terms[2].typ != termPrefix || terms[2].inv ||
terms[3].typ != termSuffix || terms[3].inv ||
terms[4].typ != termFuzzy || !terms[4].inv ||
terms[5].typ != termExact || !terms[5].inv ||
terms[6].typ != termPrefix || !terms[6].inv ||
terms[7].typ != termSuffix || !terms[7].inv ||
terms[8].typ != termEqual || terms[8].inv {
t.Errorf("%s", terms)
}
for idx, term := range terms {
if len(term.text) != 3 {
t.Errorf("%s", term)
}
if idx > 0 && len(term.origText) != 4+idx/5 {
t.Errorf("%s", term)
}
}
}
func TestParseTermsExtendedExact(t *testing.T) {
terms := parseTerms(ModeExtendedExact, CaseSmart,
"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
if len(terms) != 8 ||
terms[0].typ != termExact || terms[0].inv || len(terms[0].text) != 3 ||
terms[1].typ != termFuzzy || terms[1].inv || len(terms[1].text) != 3 ||
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 != termFuzzy || !terms[5].inv || len(terms[5].text) != 3 ||
terms[6].typ != termPrefix || !terms[6].inv || len(terms[6].text) != 3 ||
terms[7].typ != termSuffix || !terms[7].inv || len(terms[7].text) != 3 {
t.Errorf("%s", terms)
}
}
func TestParseTermsEmpty(t *testing.T) {
terms := parseTerms(ModeExtended, CaseSmart, "' $ ^ !' !^ !$")
if len(terms) != 0 {
t.Errorf("%s", terms)
}
}
func TestExact(t *testing.T) {
defer clearPatternCache()
clearPatternCache()
pattern := BuildPattern(ModeExtended, CaseSmart, true,
[]Range{}, Delimiter{}, []rune("'abc"))
sidx, eidx := algo.ExactMatchNaive(
pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.terms[0].text)
if sidx != 7 || eidx != 10 {
t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
}
}
func TestEqual(t *testing.T) {
defer clearPatternCache()
clearPatternCache()
pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("^AbC$"))
match := func(str string, sidxExpected int, eidxExpected int) {
sidx, eidx := algo.EqualMatch(
pattern.caseSensitive, pattern.forward, []rune(str), pattern.terms[0].text)
if sidx != sidxExpected || eidx != eidxExpected {
t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
}
}
match("ABC", -1, -1)
match("AbC", 0, 3)
}
func TestCaseSensitivity(t *testing.T) {
defer clearPatternCache()
clearPatternCache()
pat1 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
clearPatternCache()
pat2 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
clearPatternCache()
pat3 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
clearPatternCache()
pat4 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
clearPatternCache()
pat5 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
clearPatternCache()
pat6 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("Abc"))
if string(pat1.text) != "abc" || pat1.caseSensitive != false ||
string(pat2.text) != "Abc" || pat2.caseSensitive != true ||
string(pat3.text) != "abc" || pat3.caseSensitive != false ||
string(pat4.text) != "abc" || pat4.caseSensitive != false ||
string(pat5.text) != "abc" || pat5.caseSensitive != true ||
string(pat6.text) != "Abc" || pat6.caseSensitive != true {
t.Error("Invalid case conversion")
}
}
func TestOrigTextAndTransformed(t *testing.T) {
pattern := BuildPattern(ModeExtended, 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} {
chunk := Chunk{
&Item{
text: []rune("junegunn"),
origText: &origRunes,
transformed: trans},
}
pattern.mode = mode
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 ||
!reflect.DeepEqual(matches[0].transformed, trans) {
t.Error("Invalid match result", matches)
}
}
}

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package fzf
import (
"bufio"
"io"
"os"
"os/exec"
"github.com/junegunn/fzf/src/util"
)
// Reader reads from command or standard input
type Reader struct {
pusher func([]byte) bool
eventBox *util.EventBox
delimNil bool
}
// ReadSource reads data from the default command or from standard input
func (r *Reader) ReadSource() {
if util.IsTty() {
cmd := os.Getenv("FZF_DEFAULT_COMMAND")
if len(cmd) == 0 {
cmd = defaultCommand
}
r.readFromCommand(cmd)
} else {
r.readFromStdin()
}
r.eventBox.Set(EvtReadFin, nil)
}
func (r *Reader) feed(src io.Reader) {
delim := byte('\n')
if r.delimNil {
delim = '\000'
}
reader := bufio.NewReader(src)
for {
// ReadBytes returns err != nil if and only if the returned data does not
// end in delim.
bytea, err := reader.ReadBytes(delim)
if len(bytea) > 0 {
if err == nil {
bytea = bytea[:len(bytea)-1]
}
if r.pusher(bytea) {
r.eventBox.Set(EvtReadNew, nil)
}
}
if err != nil {
break
}
}
}
func (r *Reader) readFromStdin() {
r.feed(os.Stdin)
}
func (r *Reader) readFromCommand(cmd string) {
listCommand := exec.Command("sh", "-c", cmd)
out, err := listCommand.StdoutPipe()
if err != nil {
return
}
err = listCommand.Start()
if err != nil {
return
}
defer listCommand.Wait()
r.feed(out)
}

56
src/reader_test.go Normal file
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package fzf
import (
"testing"
"github.com/junegunn/fzf/src/util"
)
func TestReadFromCommand(t *testing.T) {
strs := []string{}
eb := util.NewEventBox()
reader := Reader{
pusher: func(s []byte) bool { strs = append(strs, string(s)); return true },
eventBox: eb}
// Check EventBox
if eb.Peek(EvtReadNew) {
t.Error("EvtReadNew should not be set yet")
}
// Normal command
reader.readFromCommand(`echo abc && echo def`)
if len(strs) != 2 || strs[0] != "abc" || strs[1] != "def" {
t.Errorf("%s", strs)
}
// Check EventBox again
if !eb.Peek(EvtReadNew) {
t.Error("EvtReadNew should be set yet")
}
// Wait should return immediately
eb.Wait(func(events *util.Events) {
if _, found := (*events)[EvtReadNew]; !found {
t.Errorf("%s", events)
}
events.Clear()
})
// EventBox is cleared
if eb.Peek(EvtReadNew) {
t.Error("EvtReadNew should not be set yet")
}
// Failing command
reader.readFromCommand(`no-such-command`)
strs = []string{}
if len(strs) > 0 {
t.Errorf("%s", strs)
}
// Check EventBox again
if eb.Peek(EvtReadNew) {
t.Error("Command failed. EvtReadNew should be set")
}
}

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src/terminal.go Normal file
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239
src/tokenizer.go Normal file
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package fzf
import (
"regexp"
"strconv"
"strings"
"github.com/junegunn/fzf/src/util"
)
const rangeEllipsis = 0
// Range represents nth-expression
type Range struct {
begin int
end int
}
// Token contains the tokenized part of the strings and its prefix length
type Token struct {
text []rune
prefixLength int
}
// Delimiter for tokenizing the input
type Delimiter struct {
regex *regexp.Regexp
str *string
}
func newRange(begin int, end int) Range {
if begin == 1 {
begin = rangeEllipsis
}
if end == -1 {
end = rangeEllipsis
}
return Range{begin, end}
}
// ParseRange parses nth-expression and returns the corresponding Range object
func ParseRange(str *string) (Range, bool) {
if (*str) == ".." {
return newRange(rangeEllipsis, rangeEllipsis), true
} else if strings.HasPrefix(*str, "..") {
end, err := strconv.Atoi((*str)[2:])
if err != nil || end == 0 {
return Range{}, false
}
return newRange(rangeEllipsis, end), true
} else if strings.HasSuffix(*str, "..") {
begin, err := strconv.Atoi((*str)[:len(*str)-2])
if err != nil || begin == 0 {
return Range{}, false
}
return newRange(begin, rangeEllipsis), true
} else if strings.Contains(*str, "..") {
ns := strings.Split(*str, "..")
if len(ns) != 2 {
return Range{}, false
}
begin, err1 := strconv.Atoi(ns[0])
end, err2 := strconv.Atoi(ns[1])
if err1 != nil || err2 != nil || begin == 0 || end == 0 {
return Range{}, false
}
return newRange(begin, end), true
}
n, err := strconv.Atoi(*str)
if err != nil || n == 0 {
return Range{}, false
}
return newRange(n, n), true
}
func withPrefixLengths(tokens [][]rune, begin int) []Token {
ret := make([]Token, len(tokens))
prefixLength := begin
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}
prefixLength += len(token)
}
return ret
}
const (
awkNil = iota
awkBlack
awkWhite
)
func awkTokenizer(input []rune) ([][]rune, int) {
// 9, 32
ret := [][]rune{}
str := []rune{}
prefixLength := 0
state := awkNil
for _, r := range input {
white := r == 9 || r == 32
switch state {
case awkNil:
if white {
prefixLength++
} else {
state = awkBlack
str = append(str, r)
}
case awkBlack:
str = append(str, r)
if white {
state = awkWhite
}
case awkWhite:
if white {
str = append(str, r)
} else {
ret = append(ret, str)
state = awkBlack
str = []rune{r}
}
}
}
if len(str) > 0 {
ret = append(ret, str)
}
return ret, prefixLength
}
// Tokenize tokenizes the given string with the delimiter
func Tokenize(runes []rune, delimiter Delimiter) []Token {
if delimiter.str == nil && delimiter.regex == nil {
// AWK-style (\S+\s*)
tokens, prefixLength := awkTokenizer(runes)
return withPrefixLengths(tokens, prefixLength)
}
var tokens []string
if delimiter.str != nil {
tokens = strings.Split(string(runes), *delimiter.str)
for i := 0; i < len(tokens)-1; i++ {
tokens[i] = tokens[i] + *delimiter.str
}
} else if delimiter.regex != nil {
str := string(runes)
for len(str) > 0 {
loc := delimiter.regex.FindStringIndex(str)
if loc == nil {
loc = []int{0, len(str)}
}
last := util.Max(loc[1], 1)
tokens = append(tokens, str[:last])
str = str[last:]
}
}
asRunes := make([][]rune, len(tokens))
for i, token := range tokens {
asRunes[i] = []rune(token)
}
return withPrefixLengths(asRunes, 0)
}
func joinTokens(tokens []Token) []rune {
ret := []rune{}
for _, token := range tokens {
ret = append(ret, token.text...)
}
return ret
}
func joinTokensAsRunes(tokens []Token) []rune {
ret := []rune{}
for _, token := range tokens {
ret = append(ret, token.text...)
}
return ret
}
// Transform is used to transform the input when --with-nth option is given
func Transform(tokens []Token, withNth []Range) []Token {
transTokens := make([]Token, len(withNth))
numTokens := len(tokens)
for idx, r := range withNth {
part := []rune{}
minIdx := 0
if r.begin == r.end {
idx := r.begin
if idx == rangeEllipsis {
part = append(part, joinTokensAsRunes(tokens)...)
} else {
if idx < 0 {
idx += numTokens + 1
}
if idx >= 1 && idx <= numTokens {
minIdx = idx - 1
part = append(part, tokens[idx-1].text...)
}
}
} else {
var begin, end int
if r.begin == rangeEllipsis { // ..N
begin, end = 1, r.end
if end < 0 {
end += numTokens + 1
}
} else if r.end == rangeEllipsis { // N..
begin, end = r.begin, numTokens
if begin < 0 {
begin += numTokens + 1
}
} else {
begin, end = r.begin, r.end
if begin < 0 {
begin += numTokens + 1
}
if end < 0 {
end += numTokens + 1
}
}
minIdx = util.Max(0, begin-1)
for idx := begin; idx <= end; idx++ {
if idx >= 1 && idx <= numTokens {
part = append(part, tokens[idx-1].text...)
}
}
}
var prefixLength int
if minIdx < numTokens {
prefixLength = tokens[minIdx].prefixLength
} else {
prefixLength = 0
}
transTokens[idx] = Token{part, prefixLength}
}
return transTokens
}

110
src/tokenizer_test.go Normal file
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@ -0,0 +1,110 @@
package fzf
import "testing"
func TestParseRange(t *testing.T) {
{
i := ".."
r, _ := ParseRange(&i)
if r.begin != rangeEllipsis || r.end != rangeEllipsis {
t.Errorf("%s", r)
}
}
{
i := "3.."
r, _ := ParseRange(&i)
if r.begin != 3 || r.end != rangeEllipsis {
t.Errorf("%s", r)
}
}
{
i := "3..5"
r, _ := ParseRange(&i)
if r.begin != 3 || r.end != 5 {
t.Errorf("%s", r)
}
}
{
i := "-3..-5"
r, _ := ParseRange(&i)
if r.begin != -3 || r.end != -5 {
t.Errorf("%s", r)
}
}
{
i := "3"
r, _ := ParseRange(&i)
if r.begin != 3 || r.end != 3 {
t.Errorf("%s", r)
}
}
}
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 {
t.Errorf("%s", tokens)
}
// With delimiter
tokens = Tokenize([]rune(input), delimiterRegexp(":"))
if string(tokens[0].text) != " abc:" || tokens[0].prefixLength != 0 {
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 {
t.Errorf("%s", tokens)
}
}
func TestTransform(t *testing.T) {
input := " abc: def: ghi: jkl"
{
tokens := Tokenize([]rune(input), Delimiter{})
{
ranges := splitNth("1,2,3")
tx := Transform(tokens, ranges)
if string(joinTokens(tx)) != "abc: def: ghi: " {
t.Errorf("%s", tx)
}
}
{
ranges := splitNth("1..2,3,2..,1")
tx := Transform(tokens, ranges)
if string(joinTokens(tx)) != "abc: def: ghi: def: ghi: jklabc: " ||
len(tx) != 4 ||
string(tx[0].text) != "abc: def: " || tx[0].prefixLength != 2 ||
string(tx[1].text) != "ghi: " || tx[1].prefixLength != 14 ||
string(tx[2].text) != "def: ghi: jkl" || tx[2].prefixLength != 8 ||
string(tx[3].text) != "abc: " || tx[3].prefixLength != 2 {
t.Errorf("%s", tx)
}
}
}
{
tokens := Tokenize([]rune(input), delimiterRegexp(":"))
{
ranges := splitNth("1..2,3,2..,1")
tx := Transform(tokens, ranges)
if string(joinTokens(tx)) != " abc: def: ghi: def: ghi: jkl abc:" ||
len(tx) != 4 ||
string(tx[0].text) != " abc: def:" || tx[0].prefixLength != 0 ||
string(tx[1].text) != " ghi:" || tx[1].prefixLength != 12 ||
string(tx[2].text) != " def: ghi: jkl" || tx[2].prefixLength != 6 ||
string(tx[3].text) != " abc:" || tx[3].prefixLength != 0 {
t.Errorf("%s", tx)
}
}
}
}
func TestTransformIndexOutOfBounds(t *testing.T) {
Transform([]Token{}, splitNth("1"))
}

42
src/update_assets.rb Executable file
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@ -0,0 +1,42 @@
#!/usr/bin/env ruby
# http://www.rubydoc.info/github/rest-client/rest-client/RestClient
require 'rest_client'
if ARGV.length < 3
puts "usage: #$0 <token> <version> <files...>"
exit 1
end
token, version, *files = ARGV
base = "https://api.github.com/repos/junegunn/fzf-bin/releases"
# List releases
rels = JSON.parse(RestClient.get(base, :authorization => "token #{token}"))
rel = rels.find { |r| r['tag_name'] == version }
unless rel
puts "#{version} not found"
exit 1
end
# List assets
assets = Hash[rel['assets'].map { |a| a.values_at *%w[name id] }]
files.select { |f| File.exists? f }.each do |file|
name = File.basename file
if asset_id = assets[name]
puts "#{name} found. Deleting asset id #{asset_id}."
RestClient.delete "#{base}/assets/#{asset_id}",
:authorization => "token #{token}"
else
puts "#{name} not found"
end
puts "Uploading #{name}"
RestClient.post(
"#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
File.read(file),
:authorization => "token #{token}",
:content_type => "application/octet-stream")
end

32
src/util/atomicbool.go Normal file
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@ -0,0 +1,32 @@
package util
import "sync"
// AtomicBool is a boxed-class that provides synchronized access to the
// underlying boolean value
type AtomicBool struct {
mutex sync.Mutex
state bool
}
// NewAtomicBool returns a new AtomicBool
func NewAtomicBool(initialState bool) *AtomicBool {
return &AtomicBool{
mutex: sync.Mutex{},
state: initialState}
}
// Get returns the current boolean value synchronously
func (a *AtomicBool) Get() bool {
a.mutex.Lock()
defer a.mutex.Unlock()
return a.state
}
// Set updates the boolean value synchronously
func (a *AtomicBool) Set(newState bool) bool {
a.mutex.Lock()
defer a.mutex.Unlock()
a.state = newState
return a.state
}

17
src/util/atomicbool_test.go Normal file
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@ -0,0 +1,17 @@
package util
import "testing"
func TestAtomicBool(t *testing.T) {
if !NewAtomicBool(true).Get() || NewAtomicBool(false).Get() {
t.Error("Invalid initial value")
}
ab := NewAtomicBool(true)
if ab.Set(false) {
t.Error("Invalid return value")
}
if ab.Get() {
t.Error("Invalid state")
}
}

96
src/util/eventbox.go Normal file
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@ -0,0 +1,96 @@
package util
import "sync"
// EventType is the type for fzf events
type EventType int
// Events is a type that associates EventType to any data
type Events map[EventType]interface{}
// EventBox is used for coordinating events
type EventBox struct {
events Events
cond *sync.Cond
ignore map[EventType]bool
}
// NewEventBox returns a new EventBox
func NewEventBox() *EventBox {
return &EventBox{
events: make(Events),
cond: sync.NewCond(&sync.Mutex{}),
ignore: make(map[EventType]bool)}
}
// Wait blocks the goroutine until signaled
func (b *EventBox) Wait(callback func(*Events)) {
b.cond.L.Lock()
defer b.cond.L.Unlock()
if len(b.events) == 0 {
b.cond.Wait()
}
callback(&b.events)
}
// Set turns on the event type on the box
func (b *EventBox) Set(event EventType, value interface{}) {
b.cond.L.Lock()
defer b.cond.L.Unlock()
b.events[event] = value
if _, found := b.ignore[event]; !found {
b.cond.Broadcast()
}
}
// Clear clears the events
// Unsynchronized; should be called within Wait routine
func (events *Events) Clear() {
for event := range *events {
delete(*events, event)
}
}
// Peek peeks at the event box if the given event is set
func (b *EventBox) Peek(event EventType) bool {
b.cond.L.Lock()
defer b.cond.L.Unlock()
_, ok := b.events[event]
return ok
}
// Watch deletes the events from the ignore list
func (b *EventBox) Watch(events ...EventType) {
b.cond.L.Lock()
defer b.cond.L.Unlock()
for _, event := range events {
delete(b.ignore, event)
}
}
// Unwatch adds the events to the ignore list
func (b *EventBox) Unwatch(events ...EventType) {
b.cond.L.Lock()
defer b.cond.L.Unlock()
for _, event := range events {
b.ignore[event] = true
}
}
// WaitFor blocks the execution until the event is received
func (b *EventBox) WaitFor(event EventType) {
looping := true
for looping {
b.Wait(func(events *Events) {
for evt := range *events {
switch evt {
case event:
looping = false
return
}
}
})
}
}

61
src/util/eventbox_test.go Normal file
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@ -0,0 +1,61 @@
package util
import "testing"
// fzf events
const (
EvtReadNew EventType = iota
EvtReadFin
EvtSearchNew
EvtSearchProgress
EvtSearchFin
EvtClose
)
func TestEventBox(t *testing.T) {
eb := NewEventBox()
// Wait should return immediately
ch := make(chan bool)
go func() {
eb.Set(EvtReadNew, 10)
ch <- true
<-ch
eb.Set(EvtSearchNew, 10)
eb.Set(EvtSearchNew, 15)
eb.Set(EvtSearchNew, 20)
eb.Set(EvtSearchProgress, 30)
ch <- true
<-ch
eb.Set(EvtSearchFin, 40)
ch <- true
<-ch
}()
count := 0
sum := 0
looping := true
for looping {
<-ch
eb.Wait(func(events *Events) {
for _, value := range *events {
switch val := value.(type) {
case int:
sum += val
looping = sum < 100
}
}
events.Clear()
})
ch <- true
count++
}
if count != 3 {
t.Error("Invalid number of events", count)
}
if sum != 100 {
t.Error("Invalid sum", sum)
}
}

102
src/util/util.go Normal file
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@ -0,0 +1,102 @@
package util
// #include <unistd.h>
import "C"
import (
"os"
"time"
"unicode/utf8"
)
// Max returns the largest integer
func Max(first int, items ...int) int {
max := first
for _, item := range items {
if item > max {
max = item
}
}
return max
}
// Min32 returns the smallest 32-bit integer
func Min32(first int32, second int32) int32 {
if first <= second {
return first
}
return second
}
// Max32 returns the largest 32-bit integer
func Max32(first int32, second int32) int32 {
if first > second {
return first
}
return second
}
// Constrain32 limits the given 32-bit integer with the upper and lower bounds
func Constrain32(val int32, min int32, max int32) int32 {
if val < min {
return min
}
if val > max {
return max
}
return val
}
// Constrain limits the given integer with the upper and lower bounds
func Constrain(val int, min int, max int) int {
if val < min {
return min
}
if val > max {
return max
}
return val
}
// DurWithin limits the given time.Duration with the upper and lower bounds
func DurWithin(
val time.Duration, min time.Duration, max time.Duration) time.Duration {
if val < min {
return min
}
if val > max {
return max
}
return val
}
// IsTty returns true is stdin is a terminal
func IsTty() bool {
return int(C.isatty(C.int(os.Stdin.Fd()))) != 0
}
func TrimRight(runes []rune) []rune {
var i int
for i = len(runes) - 1; i >= 0; i-- {
char := runes[i]
if char != ' ' && char != '\t' {
break
}
}
return runes[0 : i+1]
}
func BytesToRunes(bytea []byte) []rune {
runes := make([]rune, 0, len(bytea))
for i := 0; i < len(bytea); {
if bytea[i] < utf8.RuneSelf {
runes = append(runes, rune(bytea[i]))
i++
} else {
r, sz := utf8.DecodeRune(bytea[i:])
i += sz
runes = append(runes, r)
}
}
return runes
}

22
src/util/util_test.go Normal file
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@ -0,0 +1,22 @@
package util
import "testing"
func TestMax(t *testing.T) {
if Max(-2, 5, 1, 4, 3) != 5 {
t.Error("Invalid result")
}
}
func TestContrain(t *testing.T) {
if Constrain(-3, -1, 3) != -1 {
t.Error("Expected", -1)
}
if Constrain(2, -1, 3) != 2 {
t.Error("Expected", 2)
}
if Constrain(5, -1, 3) != 3 {
t.Error("Expected", 3)
}
}

13
test/fzf.vader
View File

@ -3,20 +3,23 @@ Execute (Setup):
Log 'Test directory: ' . g:dir
Execute (fzf#run with dir option):
let cwd = getcwd()
let result = fzf#run({ 'options': '--filter=vdr', 'dir': g:dir })
AssertEqual ['fzf.vader'], result
AssertEqual getcwd(), cwd
let result = sort(fzf#run({ 'options': '--filter e', 'dir': g:dir }))
AssertEqual ['fzf.vader', 'test_fzf.rb'], result
AssertEqual ['fzf.vader', 'test_go.rb'], result
AssertEqual getcwd(), cwd
Execute (fzf#run with Funcref command):
let g:ret = []
function! g:proc(e)
function! g:FzfTest(e)
call add(g:ret, a:e)
endfunction
let result = sort(fzf#run({ 'sink': function('g:proc'), 'options': '--filter e', 'dir': g:dir }))
AssertEqual ['fzf.vader', 'test_fzf.rb'], result
AssertEqual ['fzf.vader', 'test_fzf.rb'], sort(g:ret)
let result = sort(fzf#run({ 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
AssertEqual ['fzf.vader', 'test_go.rb'], result
AssertEqual ['fzf.vader', 'test_go.rb'], sort(g:ret)
Execute (fzf#run with string source):
let result = sort(fzf#run({ 'source': 'echo hi', 'options': '-f i' }))

850
test/test_fzf.rb
View File

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

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