0.17.1

Do not immediately check --height option on Windows (#1082 )
Fix compilation error of Windows binary
2025-07-31 12:12:02 -07:00 · 2017-10-16 01:58:57 +09:00 · 2017-10-15 19:02:05 +09:00 · 2017-10-15 18:32:59 +09:00 · 2017-10-15 17:44:25 +09:00 · 2017-10-14 16:18:46 +09:00
48 changed files with 1369 additions and 1250 deletions
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,19 +1,18 @@
 language: ruby
+dist: trusty
+sudo: required
 matrix:
  include:
    - env: TAGS=
      rvm: 2.3.3
 #   - env: TAGS=tcell
-#     rvm: 2.2.0
+#     rvm: 2.3.3

 install:
- sudo apt-get update
- sudo apt-get install -y libncurses-dev lib32ncurses5-dev libgpm-dev
 - sudo add-apt-repository -y ppa:pi-rho/dev
 - sudo apt-add-repository -y ppa:fish-shell/release-2
 - sudo apt-get update
- sudo apt-get install -y tmux=1.9a-1~ppa1~p
- sudo apt-get install -y zsh fish
+- sudo apt-get install -y tmux zsh fish

 script: |
  make test install &&
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,43 @@
 CHANGELOG
 =========

+0.17.1
+------
+
+- Fixed custom background color of preview window (#1046)
+- Fixed background color issues of Windows binary
+- Fixed Windows binary to execute command using cmd.exe with no parsing and
+  escaping (#1072)
+- Added support for `window` layout on Vim 8 using Vim 8 terminal (#1055)
+
+0.17.0-2
+--------
+
+A maintenance release for auxiliary scripts. fzf binaries are not updated.
+
+- Experimental support for the builtin terminal of Vim 8
+    - fzf can now run inside GVim
+- Updated Vim plugin to better handle `&shell` issue on fish
+- Fixed a bug of fzf-tmux where invalid output is generated
+- Fixed fzf-tmux to work even when `tput` does not work
+
+0.17.0
+------
+- Performance optimization
+- One can match literal spaces in extended-search mode with a space prepended
+  by a backslash.
+- `--expect` is now additive and can be specified multiple times.
+
+0.16.11
+-------
+- Performance optimization
+- Fixed missing preview update
+
+0.16.10
+-------
+- Fixed invalid handling of ANSI colors in preview window
+- Further improved `--ansi` performance
+
 0.16.9
 ------
 - Memory and performance optimization
--- a/README-VIM.md
+++ b/README-VIM.md
@@ -37,7 +37,7 @@ Note that the environment variables `FZF_DEFAULT_COMMAND` and
 - `g:fzf_action`
    - Customizable extra key bindings for opening selected files in different ways
 - `g:fzf_layout`
-    - Determines the size and position of fzf window (tmux pane or Neovim split)
+    - Determines the size and position of fzf window
 - `g:fzf_colors`
    - Customizes fzf colors to match the current color scheme
 - `g:fzf_history_dir`
@@ -55,11 +55,24 @@ let g:fzf_action = {
  \ 'ctrl-x': 'split',
  \ 'ctrl-v': 'vsplit' }

+" An action can be a reference to a function that processes selected lines
+function! s:build_quickfix_list(lines)
+  call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+  copen
+  cc
+endfunction
+
+let g:fzf_action = {
+  \ 'ctrl-q': function('s:build_quickfix_list'),
+  \ 'ctrl-t': 'tab split',
+  \ 'ctrl-x': 'split',
+  \ 'ctrl-v': 'vsplit' }
+
 " Default fzf layout
 " - down / up / left / right
 let g:fzf_layout = { 'down': '~40%' }

-" In Neovim, you can set up fzf window using a Vim command
+" You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
 let g:fzf_layout = { 'window': 'enew' }
 let g:fzf_layout = { 'window': '-tabnew' }
 let g:fzf_layout = { 'window': '10split enew' }
@@ -73,6 +86,7 @@ let g:fzf_colors =
  \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
  \ 'hl+':     ['fg', 'Statement'],
  \ 'info':    ['fg', 'PreProc'],
+  \ 'border':  ['fg', 'Ignore'],
  \ 'prompt':  ['fg', 'Conditional'],
  \ 'pointer': ['fg', 'Exception'],
  \ 'marker':  ['fg', 'Keyword'],
@@ -102,7 +116,7 @@ following options.
 | `options`                  | string/list   | Options to fzf                                                   |
 | `dir`                      | string        | Working directory                                                |
 | `up`/`down`/`left`/`right` | number/string | Use tmux pane with the given size (e.g. `20`, `50%`)             |
-| `window` (*Neovim only*)   | string        | Command to open fzf window (e.g. `vertical aboveleft 30new`)     |
+| `window` (Vim 8 / Neovim)  | 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)            |

@@ -131,8 +145,13 @@ command! -bang MyStuff
 GVim
 ----

-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`.
+With the latest version of GVim, fzf will start inside the builtin terminal
+emulator of Vim. Please note that this terminal feature of Vim is still young
+and unstable and you may run into some issues.
+
+If you have an older version of 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`.

 ```vim
 " This is the default. %s is replaced with fzf command
--- a/README.md
+++ b/README.md
@@ -3,15 +3,19 @@

 fzf is a general-purpose command-line fuzzy finder.

-![](https://raw.github.com/junegunn/i/master/fzf.gif)
+<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf-preview.png" width=640>
+
+It's an interactive Unix filter for command-line that can be used with any
+list; files, command history, processes, hostnames, bookmarks, git commits,
+etc.

 Pros
 ----

- No dependencies
+- Portable, no dependencies
 - Blazingly fast
 - The most comprehensive feature set
- Flexible layout using tmux panes
+- Flexible layout
 - Batteries included
    - Vim/Neovim plugin, key bindings and fuzzy auto-completion

@@ -20,7 +24,7 @@ Table of Contents

   * [Installation](#installation)
      * [Using git](#using-git)
-      * [Using Homebrew](#using-homebrew)
+      * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
      * [As Vim plugin](#as-vim-plugin)
      * [Windows](#windows)
   * [Upgrading fzf](#upgrading-fzf)
@@ -42,6 +46,10 @@ Table of Contents
      * [Settings](#settings)
      * [Supported commands](#supported-commands)
   * [Vim plugin](#vim-plugin)
+   * [Advanced topics](#advanced-topics)
+      * [Performance](#performance)
+      * [Executing external programs](#executing-external-programs)
+      * [Preview window](#preview-window)
   * [Tips](#tips)
      * [Respecting .gitignore, <code>.hgignore</code>, and <code>svn:ignore</code>](#respecting-gitignore-hgignore-and-svnignore)
      * [git ls-tree for fast traversal](#git-ls-tree-for-fast-traversal)
@@ -75,15 +83,16 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 ~/.fzf/install
 ```

-### Using Homebrew
+### Using Homebrew or Linuxbrew

-On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
+Alternatively, you can use [Homebrew](http://brew.sh/) or
+[Linuxbrew](http://linuxbrew.sh/) to install fzf.

 ```sh
 brew install fzf

-# Install shell extensions
-/usr/local/opt/fzf/install
+# To install useful key bindings and fuzzy completion:
+$(brew --prefix)/opt/fzf/install
 ```

 ### As Vim plugin
@@ -116,10 +125,12 @@ available as a [Chocolatey package][choco].
 choco install fzf
 ```

-However, other components of the project may not work on Windows. You might
-want to consider installing fzf on [Windows Subsystem for Linux][wsl] where
+However, other components of the project may not work on Windows. Known issues
+and limitations can be found on [the wiki page][windows-wiki]. You might want
+to consider installing fzf on [Windows Subsystem for Linux][wsl] where
 everything runs flawlessly.

+[windows-wiki]: https://github.com/junegunn/fzf/wiki/Windows
 [wsl]: https://blogs.msdn.microsoft.com/wsl/

 Upgrading fzf
@@ -358,15 +369,26 @@ export FZF_COMPLETION_TRIGGER='~~'
 # Options to fzf command
 export FZF_COMPLETION_OPTS='+c -x'

-# Use ag instead of the default find command for listing candidates.
+# Use ag instead of the default find command for listing path candidates.
 # - The first argument to the function is the base path to start traversal
-# - Note that ag only lists files not directories
 # - See the source code (completion.{bash,zsh}) for the details.
+# - ag only lists files, so we use with-dir script to augment the output
 _fzf_compgen_path() {
-  ag -g "" "$1"
+  ag -g "" "$1" | with-dir "$1"
+}
+
+# Use ag to generate the list for directory completion
+_fzf_compgen_dir() {
+  ag -g "" "$1" | only-dir "$1"
 }
 ```

+`only-dir` and `with-dir` scripts can be found [here][dir-scripts]. They are
+written in Ruby, but you should be able to rewrite them in any language you
+prefer.
+
+[dir-scripts]: https://gist.github.com/junegunn/8c3796a965f22e6a803fe53096ad7a75
+
 #### Supported commands

 On bash, fuzzy completion is enabled only for a predefined set of commands
@@ -383,13 +405,94 @@ Vim plugin

 See [README-VIM.md](README-VIM.md).

+Advanced topics
+---------------
+
+### Performance
+
+fzf is fast, and is [getting even faster][perf]. Performance should not be
+a problem in most use cases. However, you might want to be aware of the
+options that affect the performance.
+
+- `--ansi` tells fzf to extract and parse ANSI color codes in the input and it
+  makes the initial scanning slower. So it's not recommended that you add it
+  to your `$FZF_DEFAULT_OPTS`.
+- `--nth` makes fzf slower as fzf has to tokenize each line.
+- `--with-nth` makes fzf slower as fzf has to tokenize and reassemble each
+  line.
+- If you absolutely need better performance, you can consider using
+  `--algo=v1` (the default being `v2`) to make fzf use faster greedy
+  algorithm. However, this algorithm is not guaranteed to find the optimal
+  ordering of the matches and is not recommended.
+
+[perf]: https://junegunn.kr/images/fzf-0.17.0.png
+
+### Executing external programs
+
+You can set up key bindings for starting external processes without leaving
+fzf (`execute`, `execute-silent`).
+
+```bash
+# Press F1 to open the file with less without leaving fzf
+# Press CTRL-Y to copy the line to clipboard and aborts fzf (requires pbcopy)
+fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort'
+```
+
+See *KEY BINDINGS* section of the man page for details.
+
+### Preview window
+
+When `--preview` option is set, fzf automatically starts external process with
+the current line as the argument and shows the result in the split window.
+
+```bash
+# {} is replaced to the single-quoted string of the focused line
+fzf --preview 'cat {}'
+```
+
+Since preview window is updated only after the process is complete, it's
+important that the command finishes quickly.
+
+```bash
+# Use head instead of cat so that the command doesn't take too long to finish
+fzf --preview 'head -100 {}'
+```
+
+Preview window supports ANSI colors, so you can use programs that
+syntax-highlights the content of a file.
+
+- Highlight: http://www.andre-simon.de/doku/highlight/en/highlight.php
+- CodeRay: http://coderay.rubychan.de/
+- Rouge: https://github.com/jneen/rouge
+
+```bash
+# Try highlight, coderay, rougify in turn, then fall back to cat
+fzf --preview '[[ $(file --mime {}) =~ binary ]] &&
+                 echo {} is a binary file ||
+                 (highlight -O ansi -l {} ||
+                  coderay {} ||
+                  rougify {} ||
+                  cat {}) 2> /dev/null | head -500'
+```
+
+You can customize the size and position of the preview window using
+`--preview-window` option. For example,
+
+```bash
+fzf --height 40% --reverse --preview 'file {}' --preview-window down:1
+```
+
+For more advanced examples, see [Key bindings for git with fzf][fzf-git].
+
+[fzf-git]: https://junegunn.kr/2016/07/fzf-git/
+
 Tips
 ----

 #### 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
+[rg](https://github.com/BurntSushi/ripgrep) will do the
 filtering:

 ```sh
@@ -426,10 +529,10 @@ export FZF_DEFAULT_COMMAND='

 #### Fish shell

-It's [a known bug of fish](https://github.com/fish-shell/fish-shell/issues/1362)
-(will be fixed in 2.6.0) that it doesn't allow reading from STDIN in command
-substitution, which means simple `vim (fzf)` won't work as expected. The
-workaround is to use the `read` fish command:
+Fish shell before version 2.6.0 [doesn't allow](https://github.com/fish-shell/fish-shell/issues/1362)
+reading from STDIN in command substitution, which means simple `vim (fzf)`
+doesn't work as expected. The workaround for fish 2.5.0 and earlier is to use
+the `read` fish command:

 ```sh
 fzf | read -l result; and vim $result
--- a/bin/fzf-tmux
+++ b/bin/fzf-tmux
@@ -16,8 +16,8 @@ skip=""
 swap=""
 close=""
 term=""
-[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines)
-[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols)
+[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines) || lines=$(tmux display-message -p "#{pane_height}")
+[[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols) || columns=$(tmux display-message -p "#{pane_width}")

 help() {
  >&2 echo 'usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
@@ -146,6 +146,7 @@ cleanup() {
  fi

  if [ $# -gt 0 ]; then
+    trap - EXIT
    exit 130
  fi
 }
@@ -170,21 +171,21 @@ for arg in "${args[@]}"; do
 done

 pppid=$$
-trap_set="trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM"
-trap_unset="trap - EXIT SIGINT SIGTERM"
+echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" > $argsf
+close="; trap - EXIT SIGINT SIGTERM $close"

 if [[ -n "$term" ]] || [[ -t 0 ]]; then
-  cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" >> $argsf
  TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
    set-window-option remain-on-exit off \;\
-    split-window $opt "$trap_set;cd $(printf %q "$PWD");$envs bash $argsf;$trap_unset" $swap \
+    split-window $opt "$envs bash -c 'cd $(printf %q "$PWD"); exec -a fzf bash $argsf'" $swap \
    > /dev/null 2>&1
 else
  mkfifo $fifo1
-  cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
  TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
    set-window-option remain-on-exit off \;\
-    split-window $opt "$trap_set;$envs bash $argsf;$trap_unset" $swap \
+    split-window $opt "$envs bash -c 'exec -a fzf bash $argsf'" $swap \
    > /dev/null 2>&1
  cat <&0 > $fifo1 &
 fi
--- a/doc/fzf.txt
+++ b/doc/fzf.txt
@@ -1,4 +1,4 @@
-fzf.txt	fzf	Last change: April 28 2017
+fzf.txt	fzf	Last change: September 29 2017
 FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
 ==============================================================================

@@ -61,7 +61,7 @@ Note that the environment variables `FZF_DEFAULT_COMMAND` and
   - Customizable extra key bindings for opening selected files in different
     ways
 - `g:fzf_layout`
-   - Determines the size and position of fzf window (tmux pane or Neovim split)
+   - Determines the size and position of fzf window
 - `g:fzf_colors`
   - Customizes fzf colors to match the current color scheme
 - `g:fzf_history_dir`
@@ -80,11 +80,24 @@ Examples~
      \ 'ctrl-x': 'split',
      \ 'ctrl-v': 'vsplit' }

+    " An action can be a reference to a function that processes selected lines
+    function! s:build_quickfix_list(lines)
+      call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+      copen
+      cc
+    endfunction
+
+    let g:fzf_action = {
+      \ 'ctrl-q': function('s:build_quickfix_list'),
+      \ 'ctrl-t': 'tab split',
+      \ 'ctrl-x': 'split',
+      \ 'ctrl-v': 'vsplit' }
+
    " Default fzf layout
    " - down / up / left / right
    let g:fzf_layout = { 'down': '~40%' }

-    " In Neovim, you can set up fzf window using a Vim command
+    " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
    let g:fzf_layout = { 'window': 'enew' }
    let g:fzf_layout = { 'window': '-tabnew' }
    let g:fzf_layout = { 'window': '10split enew' }
@@ -98,6 +111,7 @@ Examples~
      \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],
      \ 'hl+':     ['fg', 'Statement'],
      \ 'info':    ['fg', 'PreProc'],
+      \ 'border':  ['fg', 'Ignore'],
      \ 'prompt':  ['fg', 'Conditional'],
      \ 'pointer': ['fg', 'Exception'],
      \ 'marker':  ['fg', 'Keyword'],
@@ -128,7 +142,7 @@ following options.
  `options`                   | string/list   | Options to fzf
  `dir`                       | string        | Working directory
  `up` / `down` / `left` / `right`  | number/string | Use tmux pane with the given size (e.g.  `20` ,  `50%` )
-  `window`  (Neovim only)     | string        | Command to open fzf window (e.g.  `vertical aboveleft 30new` )
+  `window`  (Vim 8 / Neovim)  | 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)
 ---------------------------+---------------+--------------------------------------------------------------
@@ -156,8 +170,13 @@ function that decorates the options dictionary so that it understands
 GVIM                                                                  *fzf-gvim*
 ==============================================================================

-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`.
+With the latest version of GVim, fzf will start inside the builtin terminal
+emulator of Vim. Please note that this terminal feature of Vim is still young
+and unstable and you may run into some issues.
+
+If you have an older version of 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`.
 >
    " This is the default. %s is replaced with fzf command
    let g:fzf_launcher = 'xterm -e bash -ic %s'
--- a/71
+++ b/71
@@ -2,12 +2,13 @@

 set -u

-version=0.16.9
+version=0.17.1
 auto_completion=
 key_bindings=
 update_config=2
 binary_arch=
 allow_legacy=
+shells="bash zsh fish"

 help() {
  cat << EOF
@@ -21,6 +22,10 @@ usage: $0 [OPTIONS]
    --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
    --[no-]update-rc     Whether or not to update shell configuration files

+    --no-bash            Do not set up bash configuration
+    --no-zsh             Do not set up zsh configuration
+    --no-fish            Do not set up fish configuration
+
    --32                 Download 32-bit binary
    --64                 Download 64-bit binary
 EOF
@@ -47,6 +52,9 @@ for opt in "$@"; do
    --32)              binary_arch=386   ;;
    --64)              binary_arch=amd64 ;;
    --bin)             ;;
+    --no-bash)         shells=${shells/bash/} ;;
+    --no-zsh)          shells=${shells/zsh/} ;;
+    --no-fish)         shells=${shells/fish/} ;;
    *)
      echo "unknown option: $opt"
      help
@@ -59,14 +67,14 @@ cd "$(dirname "${BASH_SOURCE[0]}")"
 fzf_base="$(pwd)"

 ask() {
-  # If stdin is a tty, we are "interactive".
-  # non-interactive shell: wait for a linefeed
-  #     interactive shell: continue after a single keypress
-  read_n=$([ -t 0 ] && echo "-n 1")
-
-  read -p "$1 ([y]/n) " $read_n -r
-  echo
-  [[ $REPLY =~ ^[Nn]$ ]]
+  while true; do
+    read -p "$1 ([y]/n) " -r
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
+      return 1
+    elif [[ $REPLY =~ ^[Nn]$ ]]; then
+      return 0
+    fi
+  done
 }

 check_binary() {
@@ -166,11 +174,14 @@ case "$archi" in
  Linux\ armv6*) download fzf-$version-linux_${binary_arch:-arm6}.tgz    ;;
  Linux\ armv7*) download fzf-$version-linux_${binary_arch:-arm7}.tgz    ;;
  Linux\ armv8*) download fzf-$version-linux_${binary_arch:-arm8}.tgz    ;;
+  Linux\ aarch64*) download fzf-$version-linux_${binary_arch:-arm8}.tgz  ;;
  FreeBSD\ *64)  download fzf-$version-freebsd_${binary_arch:-amd64}.tgz ;;
  FreeBSD\ *86)  download fzf-$version-freebsd_${binary_arch:-386}.tgz   ;;
  OpenBSD\ *64)  download fzf-$version-openbsd_${binary_arch:-amd64}.tgz ;;
  OpenBSD\ *86)  download fzf-$version-openbsd_${binary_arch:-386}.tgz   ;;
  CYGWIN*\ *64)  download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
+  MINGW*\ *86)   download fzf-$version-windows_${binary_arch:-386}.zip   ;;
+  MINGW*\ *64)   download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
  *)             binary_available=0 binary_error=1 ;;
 esac

@@ -202,6 +213,17 @@ fi

 [[ "$*" =~ "--bin" ]] && exit 0

+for s in $shells; do
+  if ! command -v "$s" > /dev/null; then
+    shells=${shells/$s/}
+  fi
+done
+
+if [[ ${#shells} -lt 3 ]]; then
+  echo "No shell configuration to be updated."
+  exit 0
+fi
+
 # Auto-completion
 if [ -z "$auto_completion" ]; then
  ask "Do you want to enable fuzzy auto-completion?"
@@ -215,9 +237,8 @@ if [ -z "$key_bindings" ]; then
 fi

 echo
-has_zsh=$(command -v zsh > /dev/null && echo 1 || echo 0)
-shells=$([ $has_zsh -eq 1 ] && echo "bash zsh" || echo "bash")
 for shell in $shells; do
+  [[ "$shell" = fish ]] && continue
  echo -n "Generate ~/.fzf.$shell ... "
  src=~/.fzf.${shell}

@@ -251,11 +272,10 @@ EOF
 done

 # fish
-has_fish=$(command -v fish > /dev/null && echo 1 || echo 0)
-if [ $has_fish -eq 1 ]; then
+if [[ "$shells" =~ fish ]]; then
  echo -n "Update fish_user_paths ... "
  fish << EOF
-  echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
+  echo \$fish_user_paths | \grep $fzf_base/bin > /dev/null
  or set --universal fish_user_paths \$fish_user_paths $fzf_base/bin
 EOF
  [ $? -eq 0 ] && echo "OK" || echo "Failed"
@@ -286,20 +306,22 @@ append_line() {
  line="$2"
  file="$3"
  pat="${4:-}"
+  lno=""

  echo "Update $file:"
  echo "  - $line"
-  [ -f "$file" ] || touch "$file"
-  if [ $# -lt 4 ]; then
-    lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
-  else
-    lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
+  if [ -f "$file" ]; then
+    if [ $# -lt 4 ]; then
+      lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
+    else
+      lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
+    fi
  fi
  if [ -n "$lno" ]; then
    echo "    - Already exists: line #$lno"
  else
    if [ $update -eq 1 ]; then
-      echo >> "$file"
+      [ -f "$file" ] && echo >> "$file"
      echo "$line" >> "$file"
      echo "    + Added"
    else
@@ -328,11 +350,12 @@ if [ $update_config -eq 2 ]; then
 fi
 echo
 for shell in $shells; do
+  [[ "$shell" = fish ]] && continue
  [ $shell = zsh ] && dest=${ZDOTDIR:-~}/.zshrc || dest=~/.bashrc
  append_line $update_config "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" "$dest" "~/.fzf.${shell}"
 done

-if [ $key_bindings -eq 1 ] && [ $has_fish -eq 1 ]; then
+if [ $key_bindings -eq 1 ] && [[ "$shells" =~ fish ]]; then
  bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
  if [ ! -e "$bind_file" ]; then
    create_file "$bind_file" \
@@ -346,9 +369,9 @@ fi

 if [ $update_config -eq 1 ]; then
  echo 'Finished. Restart your shell or reload config file.'
-  echo '   source ~/.bashrc  # bash'
-  [ $has_zsh  -eq 1 ] && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
-  [ $has_fish -eq 1 ] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
+  [[ "$shells" =~ bash ]] && echo '   source ~/.bashrc  # bash'
+  [[ "$shells" =~ zsh ]]  && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
+  [[ "$shells" =~ fish ]] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
  echo
  echo 'Use uninstall script to remove fzf.'
  echo
--- a/man/man1/fzf-tmux.1
+++ b/man/man1/fzf-tmux.1
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf-tmux 1 "Jul 2017" "fzf 0.16.9" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Oct 2017" "fzf 0.17.1" "fzf-tmux - open fzf in tmux split pane"

 .SH NAME
 fzf-tmux - open fzf in tmux split pane
--- a/man/man1/fzf.1
+++ b/man/man1/fzf.1
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Jul 2017" "fzf 0.16.9" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Oct 2017" "fzf 0.17.1" "fzf - a command-line fuzzy finder"

 .SH NAME
 fzf - a command-line fuzzy finder
@@ -111,6 +111,9 @@ Comma-separated list of sort criteria to apply when the scores are tied.
 .B "-m, --multi"
 Enable multi-select with tab/shift-tab
 .TP
+.B "+m, --no-multi"
+Disable multi-select
+.TP
 .B "--no-mouse"
 Disable mouse
 .TP
@@ -328,10 +331,12 @@ Comma-separated list of keys that can be used to complete fzf in addition to
 the default enter key. When this option is set, fzf will print the name of the
 key pressed as the first line of its output (or as the second line if
 \fB--print-query\fR is also used). The line will be empty if fzf is completed
-with the default enter key.
+with the default enter key. If \fB--expect\fR option is specified multiple
+times, fzf will expect the union of the keys. \fB--no-expect\fR will clear the
+list.

 .RS
-e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
+e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s --expect=f1,f2,~,@\fR
 .RE
 .TP
 .B "--read0"
@@ -357,6 +362,9 @@ e.g. \fBfzf --multi | fzf --sync\fR
 .B "--version"
 Display version information and exit

+.TP
+Note that most options have the opposite versions with \fB--no-\fR prefix.
+
 .SH ENVIRONMENT VARIABLES
 .TP
 .B FZF_DEFAULT_COMMAND
@@ -404,6 +412,9 @@ Unless specified otherwise, fzf will start in "extended-search mode". In this
 mode, you can specify multiple patterns delimited by spaces, such as: \fB'wild
 ^music .mp3$ sbtrkt !rmx\fR

+You can prepend a backslash to a space (\fB\\ \fR) to match a literal space
+character.
+
 .SS Exact-match (quoted)
 A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
 an "exact-match" (or "non-fuzzy") term. fzf will search for the exact
--- a/plugin/fzf.vim
+++ b/plugin/fzf.vim
@@ -35,6 +35,8 @@ else
  let s:base_dir = expand('<sfile>:h:h')
 endif
 if s:is_win
+  let s:term_marker = '&::FZF'
+
  function! s:fzf_call(fn, ...)
    let shellslash = &shellslash
    try
@@ -53,6 +55,8 @@ if s:is_win
          \ ['chcp %origchcp% > nul']
  endfunction
 else
+  let s:term_marker = ";#FZF"
+
  function! s:fzf_call(fn, ...)
    return call(a:fn, a:000)
  endfunction
@@ -66,8 +70,8 @@ function! s:shellesc_cmd(arg)
  let escaped = substitute(a:arg, '[&|<>()@^]', '^&', 'g')
  let escaped = substitute(escaped, '%', '%%', 'g')
  let escaped = substitute(escaped, '"', '\\^&', 'g')
-  let escaped = substitute(escaped, '\\\+\(\\^\)', '\\\\\1', 'g')
-  return '^"'.substitute(escaped, '[^\\]\zs\\$', '\\\\', '').'^"'
+  let escaped = substitute(escaped, '\(\\\+\)\(\\^\)', '\1\1\2', 'g')
+  return '^"'.substitute(escaped, '\(\\\+\)$', '\1\1', '').'^"'
 endfunction

 function! fzf#shellescape(arg, ...)
@@ -201,7 +205,10 @@ function! s:common_sink(action, lines) abort
    return
  endif
  let key = remove(a:lines, 0)
-  let cmd = get(a:action, key, 'e')
+  let Cmd = get(a:action, key, 'e')
+  if type(Cmd) == type(function('call'))
+    return Cmd(a:lines)
+  endif
  if len(a:lines) > 1
    augroup fzf_swap
      autocmd SwapExists * let v:swapchoice='o'
@@ -217,7 +224,7 @@ function! s:common_sink(action, lines) abort
        execute 'e' s:escape(item)
        let empty = 0
      else
-        call s:open(cmd, item)
+        call s:open(Cmd, item)
      endif
      if !has('patch-8.0.0177') && !has('nvim-0.2') && exists('#BufEnter')
            \ && isdirectory(item)
@@ -325,25 +332,21 @@ function! fzf#wrap(...)
  return opts
 endfunction

-function! fzf#run(...) abort
-try
-  let oshell = &shell
-  let useshellslash = &shellslash
-
+function! s:use_sh()
+  let [shell, shellslash] = [&shell, &shellslash]
  if s:is_win
    set shell=cmd.exe
    set noshellslash
  else
    set shell=sh
  endif
+  return [shell, shellslash]
+endfunction
+
+function! fzf#run(...) abort
+try
+  let [shell, shellslash] = s:use_sh()

-  if has('nvim')
-    let running = filter(range(1, bufnr('$')), "bufname(v:val) =~# ';#FZF'")
-    if len(running)
-      call s:warn('FZF is already running (in buffer '.join(running, ', ').')!')
-      return []
-    endif
-  endif
  let dict   = exists('a:1') ? s:upgrade(a:1) : {}
  let temps  = { 'result': s:fzf_tempname() }
  let optstr = s:evaluate_opts(get(dict, 'options', ''))
@@ -370,7 +373,7 @@ try
    let source = dict.source
    let type = type(source)
    if type == 1
-      let prefix = source.'|'
+      let prefix = '( '.source.' )|'
    elseif type == 3
      let temps.input = s:fzf_tempname()
      call writefile(source, temps.input)
@@ -383,10 +386,13 @@ try
  endif

  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0)
-  let use_height = has_key(dict, 'down') &&
-        \ !(has('nvim') || s:is_win || has('win32unix') || s:present(dict, 'up', 'left', 'right')) &&
+  let use_height = has_key(dict, 'down') && !has('gui_running') &&
+        \ !(has('nvim') || s:is_win || has('win32unix') || s:present(dict, 'up', 'left', 'right', 'window')) &&
        \ executable('tput') && filereadable('/dev/tty')
-  let use_term = has('nvim') && !s:is_win
+  let has_vim8_term = has('terminal') && has('patch-8.0.995')
+  let has_nvim_term = has('nvim-0.2.1') || has('nvim') && !s:is_win
+  let use_term = has_nvim_term ||
+    \ has_vim8_term && (has('gui_running') || s:is_win || !use_height && s:present(dict, 'down', 'up', 'left', 'right', 'window'))
  let use_tmux = (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:tmux_enabled() && s:splittable(dict)
  if prefer_tmux && use_tmux
    let use_height = 0
@@ -409,8 +415,7 @@ try
  call s:callback(dict, lines)
  return lines
 finally
-  let &shell = oshell
-  let &shellslash = useshellslash
+  let [&shell, &shellslash] = [shell, shellslash]
 endtry
 endfunction

@@ -466,11 +471,11 @@ augroup fzf_popd
 augroup END

 function! s:dopopd()
-  if !exists('w:fzf_prev_dir') || exists('*haslocaldir') && !haslocaldir()
+  if !exists('w:fzf_dir') || s:fzf_getcwd() != w:fzf_dir[1]
    return
  endif
-  execute 'lcd' s:escape(w:fzf_prev_dir)
-  unlet w:fzf_prev_dir
+  execute 'lcd' s:escape(w:fzf_dir[0])
+  unlet w:fzf_dir
 endfunction

 function! s:xterm_launcher()
@@ -629,6 +634,7 @@ function! s:execute_term(dict, command, temps) abort
  let winrest = winrestcmd()
  let pbuf = bufnr('')
  let [ppos, winopts] = s:split(a:dict)
+  call s:use_sh()
  let b:fzf = a:dict
  let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
            \ 'winopts': winopts, 'winrest': winrest, 'lines': &lines,
@@ -644,7 +650,7 @@ function! s:execute_term(dict, command, temps) abort
      endif
    endif
  endfunction
-  function! fzf.on_exit(id, code, _event)
+  function! fzf.on_exit(id, code, ...)
    if s:getpos() == self.ppos " {'window': 'enew'}
      for [opt, val] in items(self.winopts)
        execute 'let' opt '=' val
@@ -682,13 +688,29 @@ function! s:execute_term(dict, command, temps) abort
    if s:present(a:dict, 'dir')
      execute 'lcd' s:escape(a:dict.dir)
    endif
-    call termopen(a:command . ';#FZF', fzf)
+    if s:is_win
+      let fzf.temps.batchfile = s:fzf_tempname().'.bat'
+      call writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
+      let command = fzf.temps.batchfile
+    else
+      let command = a:command
+    endif
+    let command .= s:term_marker
+    if has('nvim')
+      call termopen(command, fzf)
+    else
+      let t = term_start([&shell, &shellcmdflag, command], {'curwin': fzf.buf, 'exit_cb': function(fzf.on_exit)})
+      " FIXME: https://github.com/vim/vim/issues/1998
+      if !has('nvim') && !s:is_win
+        call term_wait(t, 20)
+      endif
+    endif
  finally
    if s:present(a:dict, 'dir')
      lcd -
    endif
  endtry
-  setlocal nospell bufhidden=wipe nobuflisted
+  setlocal nospell bufhidden=wipe nobuflisted nonumber
  setf fzf
  startinsert
  return []
@@ -719,7 +741,7 @@ function! s:callback(dict, lines) abort
  let popd = has_key(a:dict, 'prev_dir') &&
        \ (!&autochdir || (empty(a:lines) || len(a:lines) == 1 && empty(a:lines[0])))
  if popd
-    let w:fzf_prev_dir = a:dict.prev_dir
+    let w:fzf_dir = [a:dict.prev_dir, a:dict.dir]
  endif

  try
@@ -743,7 +765,7 @@ function! s:callback(dict, lines) abort

  " We may have opened a new window or tab
  if popd
-    let w:fzf_prev_dir = a:dict.prev_dir
+    let w:fzf_dir = [a:dict.prev_dir, a:dict.dir]
    call s:dopopd()
  endif
 endfunction
@@ -754,9 +776,12 @@ let s:default_action = {
  \ 'ctrl-v': 'vsplit' }

 function! s:shortpath()
-  let short = pathshorten(fnamemodify(getcwd(), ':~:.'))
+  let short = fnamemodify(getcwd(), ':~:.')
+  if !has('win32unix')
+    let short = pathshorten(short)
+  endif
  let slash = (s:is_win && !&shellslash) ? '\' : '/'
-  return empty(short) ? '~'.slash : short . (short =~ slash.'$' ? '' : slash)
+  return empty(short) ? '~'.slash : short . (short =~ escape(slash, '\').'$' ? '' : slash)
 endfunction

 function! s:cmd(bang, ...) abort
@@ -771,6 +796,7 @@ function! s:cmd(bang, ...) abort
  else
    let prompt = s:shortpath()
  endif
+  let prompt = strwidth(prompt) < &columns - 20 ? prompt : '> '
  call extend(opts.options, ['--prompt', prompt])
  call extend(opts.options, args)
  call fzf#run(fzf#wrap('FZF', opts, a:bang))
--- a/shell/completion.bash
+++ b/shell/completion.bash
@@ -233,7 +233,7 @@ _fzf_complete_telnet() {

 _fzf_complete_ssh() {
  _fzf_complete '+m' "$@" < <(
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}') \
        <(command grep -oE '^[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
        awk '{if (length($2) > 0) {print $2}}' | sort -u
--- a/shell/completion.zsh
+++ b/shell/completion.zsh
@@ -116,7 +116,7 @@ _fzf_complete_telnet() {

 _fzf_complete_ssh() {
  _fzf_complete '+m' "$@" < <(
-    command cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+    command cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}') \
        <(command grep -oE '^[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
        awk '{if (length($2) > 0) {print $2}}' | sort -u
--- a/shell/key-bindings.zsh
+++ b/shell/key-bindings.zsh
@@ -60,7 +60,7 @@ fzf-history-widget() {
  local selected num
  setopt localoptions noglobsubst noposixbuiltins pipefail 2> /dev/null
  selected=( $(fc -l 1 |
-    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(q)LBUFFER} +m" $(__fzfcmd)) )
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
  local ret=$?
  if [ -n "$selected" ]; then
    num=$selected[1]
--- a/src/algo/algo.go
+++ b/src/algo/algo.go
@@ -78,9 +78,11 @@ Scoring criteria
 */

 import (
+	"bytes"
 	"fmt"
 	"strings"
 	"unicode"
+	"unicode/utf8"

 	"github.com/junegunn/fzf/src/util"
 )
@@ -156,27 +158,17 @@ func posArray(withPos bool, len int) *[]int {
 	return nil
 }

-func alloc16(offset int, slab *util.Slab, size int, clear bool) (int, []int16) {
+func alloc16(offset int, slab *util.Slab, size int) (int, []int16) {
 	if slab != nil && cap(slab.I16) > offset+size {
 		slice := slab.I16[offset : offset+size]
-		if clear {
-			for idx := range slice {
-				slice[idx] = 0
-			}
-		}
 		return offset + size, slice
 	}
 	return offset, make([]int16, size)
 }

-func alloc32(offset int, slab *util.Slab, size int, clear bool) (int, []int32) {
+func alloc32(offset int, slab *util.Slab, size int) (int, []int32) {
 	if slab != nil && cap(slab.I32) > offset+size {
 		slice := slab.I32[offset : offset+size]
-		if clear {
-			for idx := range slice {
-				slice[idx] = 0
-			}
-		}
 		return offset + size, slice
 	}
 	return offset, make([]int32, size)
@@ -227,7 +219,7 @@ func bonusFor(prevClass charClass, class charClass) int16 {
 	return 0
 }

-func bonusAt(input util.Chars, idx int) int16 {
+func bonusAt(input *util.Chars, idx int) int16 {
 	if idx == 0 {
 		return bonusBoundary
 	}
@@ -249,21 +241,113 @@ func normalizeRune(r rune) rune {
 // Algo functions make two assumptions
 // 1. "pattern" is given in lowercase if "caseSensitive" is false
 // 2. "pattern" is already normalized if "normalize" is true
-type Algo func(caseSensitive bool, normalize bool, forward bool, input util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int)
+type Algo func(caseSensitive bool, normalize bool, forward bool, input *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int)

-func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func trySkip(input *util.Chars, caseSensitive bool, b byte, from int) int {
+	byteArray := input.Bytes()[from:]
+	idx := bytes.IndexByte(byteArray, b)
+	if idx == 0 {
+		// Can't skip any further
+		return from
+	}
+	// We may need to search for the uppercase letter again. We don't have to
+	// consider normalization as we can be sure that this is an ASCII string.
+	if !caseSensitive && b >= 'a' && b <= 'z' {
+		if idx > 0 {
+			byteArray = byteArray[:idx]
+		}
+		uidx := bytes.IndexByte(byteArray, b-32)
+		if uidx >= 0 {
+			idx = uidx
+		}
+	}
+	if idx < 0 {
+		return -1
+	}
+	return from + idx
+}
+
+func isAscii(runes []rune) bool {
+	for _, r := range runes {
+		if r >= utf8.RuneSelf {
+			return false
+		}
+	}
+	return true
+}
+
+func asciiFuzzyIndex(input *util.Chars, pattern []rune, caseSensitive bool) int {
+	// Can't determine
+	if !input.IsBytes() {
+		return 0
+	}
+
+	// Not possible
+	if !isAscii(pattern) {
+		return -1
+	}
+
+	firstIdx, idx := 0, 0
+	for pidx := 0; pidx < len(pattern); pidx++ {
+		idx = trySkip(input, caseSensitive, byte(pattern[pidx]), idx)
+		if idx < 0 {
+			return -1
+		}
+		if pidx == 0 && idx > 0 {
+			// Step back to find the right bonus point
+			firstIdx = idx - 1
+		}
+		idx++
+	}
+	return firstIdx
+}
+
+func debugV2(T []rune, pattern []rune, F []int32, lastIdx int, H []int16, C []int16) {
+	width := lastIdx - int(F[0]) + 1
+
+	for i, f := range F {
+		I := i * width
+		if i == 0 {
+			fmt.Print("  ")
+			for j := int(f); j <= lastIdx; j++ {
+				fmt.Printf(" " + string(T[j]) + " ")
+			}
+			fmt.Println()
+		}
+		fmt.Print(string(pattern[i]) + " ")
+		for idx := int(F[0]); idx < int(f); idx++ {
+			fmt.Print(" 0 ")
+		}
+		for idx := int(f); idx <= lastIdx; idx++ {
+			fmt.Printf("%2d ", H[i*width+idx-int(F[0])])
+		}
+		fmt.Println()
+
+		fmt.Print("  ")
+		for idx, p := range C[I : I+width] {
+			if idx+int(F[0]) < int(F[i]) {
+				p = 0
+			}
+			if p > 0 {
+				fmt.Printf("%2d ", p)
+			} else {
+				fmt.Print("   ")
+			}
+		}
+		fmt.Println()
+	}
+}
+
+func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	// Assume that pattern is given in lowercase if case-insensitive.
 	// First check if there's a match and calculate bonus for each position.
 	// If the input string is too long, consider finding the matching chars in
 	// this phase as well (non-optimal alignment).
-	N := input.Length()
 	M := len(pattern)
-	switch M {
-	case 0:
+	if M == 0 {
 		return Result{0, 0, 0}, posArray(withPos, M)
-	case 1:
-		return ExactMatchNaive(caseSensitive, normalize, forward, input, pattern[0:1], withPos, slab)
 	}
+	N := input.Length()

 	// Since O(nm) algorithm can be prohibitively expensive for large input,
 	// we fall back to the greedy algorithm.
@@ -271,159 +355,175 @@ func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input util.C
 		return FuzzyMatchV1(caseSensitive, normalize, forward, input, pattern, withPos, slab)
 	}

+	// Phase 1. Optimized search for ASCII string
+	idx := asciiFuzzyIndex(input, pattern, caseSensitive)
+	if idx < 0 {
+		return Result{-1, -1, 0}, nil
+	}
+
 	// Reuse pre-allocated integer slice to avoid unnecessary sweeping of garbages
 	offset16 := 0
 	offset32 := 0
+	offset16, H0 := alloc16(offset16, slab, N)
+	offset16, C0 := alloc16(offset16, slab, N)
 	// Bonus point for each position
-	offset16, B := alloc16(offset16, slab, N, false)
+	offset16, B := alloc16(offset16, slab, N)
 	// The first occurrence of each character in the pattern
-	offset32, F := alloc32(offset32, slab, M, false)
+	offset32, F := alloc32(offset32, slab, M)
 	// Rune array
-	offset32, T := alloc32(offset32, slab, N, false)
-
-	// Phase 1. Check if there's a match and calculate bonus for each point
-	pidx, lastIdx, prevClass := 0, 0, charNonWord
+	offset32, T := alloc32(offset32, slab, N)
 	input.CopyRunes(T)
-	for idx := 0; idx < N; idx++ {
-		char := T[idx]
+
+	// Phase 2. Calculate bonus for each point
+	maxScore, maxScorePos := int16(0), 0
+	pidx, lastIdx := 0, 0
+	pchar0, pchar, prevH0, prevClass, inGap := pattern[0], pattern[0], int16(0), charNonWord, false
+	Tsub := T[idx:]
+	H0sub, C0sub, Bsub := H0[idx:][:len(Tsub)], C0[idx:][:len(Tsub)], B[idx:][:len(Tsub)]
+	for off, char := range Tsub {
 		var class charClass
 		if char <= unicode.MaxASCII {
 			class = charClassOfAscii(char)
+			if !caseSensitive && class == charUpper {
+				char += 32
+			}
 		} else {
 			class = charClassOfNonAscii(char)
-		}
-
-		if !caseSensitive && class == charUpper {
-			if char <= unicode.MaxASCII {
-				char += 32
-			} else {
+			if !caseSensitive && class == charUpper {
 				char = unicode.To(unicode.LowerCase, char)
 			}
+			if normalize {
+				char = normalizeRune(char)
+			}
 		}

-		if normalize {
-			char = normalizeRune(char)
-		}
-
-		T[idx] = char
-		B[idx] = bonusFor(prevClass, class)
+		Tsub[off] = char
+		bonus := bonusFor(prevClass, class)
+		Bsub[off] = bonus
 		prevClass = class

-		if pidx < M {
-			if char == pattern[pidx] {
-				lastIdx = idx
-				F[pidx] = int32(idx)
+		if char == pchar {
+			if pidx < M {
+				F[pidx] = int32(idx + off)
 				pidx++
+				pchar = pattern[util.Min(pidx, M-1)]
 			}
-		} else {
-			if char == pattern[M-1] {
-				lastIdx = idx
-			}
+			lastIdx = idx + off
 		}
+
+		if char == pchar0 {
+			score := scoreMatch + bonus*bonusFirstCharMultiplier
+			H0sub[off] = score
+			C0sub[off] = 1
+			if M == 1 && (forward && score > maxScore || !forward && score >= maxScore) {
+				maxScore, maxScorePos = score, idx+off
+				if forward && bonus == bonusBoundary {
+					break
+				}
+			}
+			inGap = false
+		} else {
+			if inGap {
+				H0sub[off] = util.Max16(prevH0+scoreGapExtention, 0)
+			} else {
+				H0sub[off] = util.Max16(prevH0+scoreGapStart, 0)
+			}
+			C0sub[off] = 0
+			inGap = true
+		}
+		prevH0 = H0sub[off]
 	}
 	if pidx != M {
 		return Result{-1, -1, 0}, nil
 	}
+	if M == 1 {
+		result := Result{maxScorePos, maxScorePos + 1, int(maxScore)}
+		if !withPos {
+			return result, nil
+		}
+		pos := []int{maxScorePos}
+		return result, &pos
+	}

-	// Phase 2. Fill in score matrix (H)
+	// Phase 3. Fill in score matrix (H)
 	// Unlike the original algorithm, we do not allow omission.
-	width := lastIdx - int(F[0]) + 1
-	offset16, H := alloc16(offset16, slab, width*M, false)
+	f0 := int(F[0])
+	width := lastIdx - f0 + 1
+	offset16, H := alloc16(offset16, slab, width*M)
+	copy(H, H0[f0:lastIdx+1])

 	// Possible length of consecutive chunk at each position.
-	offset16, C := alloc16(offset16, slab, width*M, false)
+	offset16, C := alloc16(offset16, slab, width*M)
+	copy(C, C0[f0:lastIdx+1])

-	maxScore, maxScorePos := int16(0), 0
-	for i := 0; i < M; i++ {
-		I := i * width
+	Fsub := F[1:]
+	Psub := pattern[1:][:len(Fsub)]
+	for off, f := range Fsub {
+		f := int(f)
+		pchar := Psub[off]
+		pidx := off + 1
+		row := pidx * width
 		inGap := false
-		for j := int(F[i]); j <= lastIdx; j++ {
-			j0 := j - int(F[0])
+		Tsub := T[f : lastIdx+1]
+		Bsub := B[f:][:len(Tsub)]
+		Csub := C[row+f-f0:][:len(Tsub)]
+		Cdiag := C[row+f-f0-1-width:][:len(Tsub)]
+		Hsub := H[row+f-f0:][:len(Tsub)]
+		Hdiag := H[row+f-f0-1-width:][:len(Tsub)]
+		Hleft := H[row+f-f0-1:][:len(Tsub)]
+		Hleft[0] = 0
+		for off, char := range Tsub {
+			col := off + f
 			var s1, s2, consecutive int16

-			if j > int(F[i]) {
-				if inGap {
-					s2 = H[I+j0-1] + scoreGapExtention
-				} else {
-					s2 = H[I+j0-1] + scoreGapStart
-				}
+			if inGap {
+				s2 = Hleft[off] + scoreGapExtention
+			} else {
+				s2 = Hleft[off] + scoreGapStart
 			}

-			if pattern[i] == T[j] {
-				var diag int16
-				if i > 0 && j0 > 0 {
-					diag = H[I-width+j0-1]
-				}
-				s1 = diag + scoreMatch
-				b := B[j]
-				if i > 0 {
-					// j > 0 if i > 0
-					consecutive = C[I-width+j0-1] + 1
-					// Break consecutive chunk
-					if b == bonusBoundary {
-						consecutive = 1
-					} else if consecutive > 1 {
-						b = util.Max16(b, util.Max16(bonusConsecutive, B[j-int(consecutive)+1]))
-					}
-				} else {
+			if pchar == char {
+				s1 = Hdiag[off] + scoreMatch
+				b := Bsub[off]
+				consecutive = Cdiag[off] + 1
+				// Break consecutive chunk
+				if b == bonusBoundary {
 					consecutive = 1
-					b *= bonusFirstCharMultiplier
+				} else if consecutive > 1 {
+					b = util.Max16(b, util.Max16(bonusConsecutive, B[col-int(consecutive)+1]))
 				}
 				if s1+b < s2 {
-					s1 += B[j]
+					s1 += Bsub[off]
 					consecutive = 0
 				} else {
 					s1 += b
 				}
 			}
-			C[I+j0] = consecutive
+			Csub[off] = consecutive

 			inGap = s1 < s2
 			score := util.Max16(util.Max16(s1, s2), 0)
-			if i == M-1 && (forward && score > maxScore || !forward && score >= maxScore) {
-				maxScore, maxScorePos = score, j
+			if pidx == M-1 && (forward && score > maxScore || !forward && score >= maxScore) {
+				maxScore, maxScorePos = score, col
 			}
-			H[I+j0] = score
-		}
-
-		if DEBUG {
-			if i == 0 {
-				fmt.Print("  ")
-				for j := int(F[i]); j <= lastIdx; j++ {
-					fmt.Printf(" " + string(T[j]) + " ")
-				}
-				fmt.Println()
-			}
-			fmt.Print(string(pattern[i]) + " ")
-			for idx := int(F[0]); idx < int(F[i]); idx++ {
-				fmt.Print(" 0 ")
-			}
-			for idx := int(F[i]); idx <= lastIdx; idx++ {
-				fmt.Printf("%2d ", H[i*width+idx-int(F[0])])
-			}
-			fmt.Println()
-
-			fmt.Print("  ")
-			for idx, p := range C[I : I+width] {
-				if idx+int(F[0]) < int(F[i]) {
-					p = 0
-				}
-				fmt.Printf("%2d ", p)
-			}
-			fmt.Println()
+			Hsub[off] = score
 		}
 	}

-	// Phase 3. (Optional) Backtrace to find character positions
+	if DEBUG {
+		debugV2(T, pattern, F, lastIdx, H, C)
+	}
+
+	// Phase 4. (Optional) Backtrace to find character positions
 	pos := posArray(withPos, M)
-	j := int(F[0])
+	j := f0
 	if withPos {
 		i := M - 1
 		j = maxScorePos
 		preferMatch := true
 		for {
 			I := i * width
-			j0 := j - int(F[0])
+			j0 := j - f0
 			s := H[I+j0]

 			var s1, s2 int16
@@ -452,7 +552,7 @@ func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input util.C
 }

 // Implement the same sorting criteria as V2
-func calculateScore(caseSensitive bool, normalize bool, text util.Chars, pattern []rune, sidx int, eidx int, withPos bool) (int, *[]int) {
+func calculateScore(caseSensitive bool, normalize bool, text *util.Chars, pattern []rune, sidx int, eidx int, withPos bool) (int, *[]int) {
 	pidx, score, inGap, consecutive, firstBonus := 0, 0, false, 0, int16(0)
 	pos := posArray(withPos, len(pattern))
 	prevClass := charNonWord
@@ -512,10 +612,13 @@ func calculateScore(caseSensitive bool, normalize bool, text util.Chars, pattern
 }

 // FuzzyMatchV1 performs fuzzy-match
-func FuzzyMatchV1(caseSensitive bool, normalize bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func FuzzyMatchV1(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
+	if asciiFuzzyIndex(text, pattern, caseSensitive) < 0 {
+		return Result{-1, -1, 0}, nil
+	}

 	pidx := 0
 	sidx := -1
@@ -595,7 +698,7 @@ func FuzzyMatchV1(caseSensitive bool, normalize bool, forward bool, text util.Ch
 // bonus point, instead of stopping immediately after finding the first match.
 // The solution is much cheaper since there is only one possible alignment of
 // the pattern.
-func ExactMatchNaive(caseSensitive bool, normalize bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func ExactMatchNaive(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
@@ -607,6 +710,10 @@ func ExactMatchNaive(caseSensitive bool, normalize bool, forward bool, text util
 		return Result{-1, -1, 0}, nil
 	}

+	if asciiFuzzyIndex(text, pattern, caseSensitive) < 0 {
+		return Result{-1, -1, 0}, nil
+	}
+
 	// For simplicity, only look at the bonus at the first character position
 	pidx := 0
 	bestPos, bonus, bestBonus := -1, int16(0), int16(-1)
@@ -661,7 +768,7 @@ func ExactMatchNaive(caseSensitive bool, normalize bool, forward bool, text util
 }

 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	if len(pattern) == 0 {
 		return Result{0, 0, 0}, nil
 	}
@@ -688,7 +795,7 @@ func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text util.Cha
 }

 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenRunes := text.Length()
 	trimmedLen := lenRunes - text.TrailingWhitespaces()
 	if len(pattern) == 0 {
@@ -719,7 +826,7 @@ func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text util.Cha
 }

 // EqualMatch performs equal-match
-func EqualMatch(caseSensitive bool, normalize bool, forward bool, text util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
+func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenPattern := len(pattern)
 	if text.Length() != lenPattern {
 		return Result{-1, -1, 0}, nil
--- a/src/algo/algo_test.go
+++ b/src/algo/algo_test.go
@@ -17,7 +17,8 @@ func assertMatch2(t *testing.T, fun Algo, caseSensitive, normalize, forward bool
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	res, pos := fun(caseSensitive, normalize, forward, util.RunesToChars([]rune(input)), []rune(pattern), true, nil)
+	chars := util.ToChars([]byte(input))
+	res, pos := fun(caseSensitive, normalize, forward, &chars, []rune(pattern), true, nil)
 	var start, end int
 	if pos == nil || len(*pos) == 0 {
 		start = res.Start
--- a/src/ansi.go
+++ b/src/ansi.go
@@ -73,15 +73,13 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 	runeCount := 0
 	for idx := 0; idx < len(str); {
 		idx += findAnsiStart(str[idx:])
-
-		// No sign of ANSI code
 		if idx == len(str) {
 			break
 		}

 		// Make sure that we found an ANSI code
 		offset := ansiRegex.FindStringIndex(str[idx:])
-		if offset == nil {
+		if len(offset) < 2 {
 			idx++
 			continue
 		}
@@ -117,22 +115,30 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 		}
 	}

-	rest := str[prevIdx:]
-	if len(rest) > 0 {
+	var rest string
+	var trimmed string
+
+	if prevIdx == 0 {
+		// No ANSI code found
+		rest = str
+		trimmed = str
+	} else {
+		rest = str[prevIdx:]
 		output.WriteString(rest)
-		if state != nil {
-			// Update last offset
-			runeCount += utf8.RuneCountInString(rest)
-			(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
-		}
+		trimmed = output.String()
+	}
+	if len(rest) > 0 && state != nil {
+		// Update last offset
+		runeCount += utf8.RuneCountInString(rest)
+		(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
 	}
 	if proc != nil {
 		proc(rest, state)
 	}
 	if len(offsets) == 0 {
-		return output.String(), nil, state
+		return trimmed, nil, state
 	}
-	return output.String(), &offsets, state
+	return trimmed, &offsets, state
 }

 func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
--- a/src/cache_test.go
+++ b/src/cache_test.go
@@ -4,9 +4,8 @@ import "testing"

 func TestChunkCache(t *testing.T) {
 	cache := NewChunkCache()
-	chunk2 := make(Chunk, chunkSize)
 	chunk1p := &Chunk{}
-	chunk2p := &chunk2
+	chunk2p := &Chunk{count: chunkSize}
 	items1 := []Result{Result{}}
 	items2 := []Result{Result{}, Result{}}
 	cache.Add(chunk1p, "foo", items1)
--- a/src/chunklist.go
+++ b/src/chunklist.go
@@ -3,16 +3,17 @@ package fzf
 import "sync"

 // Chunk is a list of Items whose size has the upper limit of chunkSize
-type Chunk []Item
+type Chunk struct {
+	items [chunkSize]Item
+	count int
+}

-// ItemBuilder is a closure type that builds Item object from a pointer to a
-// string and an integer
-type ItemBuilder func([]byte, int) Item
+// ItemBuilder is a closure type that builds Item object from byte array
+type ItemBuilder func(*Item, []byte) bool

 // ChunkList is a list of Chunks
 type ChunkList struct {
 	chunks []*Chunk
-	count  int
 	mutex  sync.Mutex
 	trans  ItemBuilder
 }
@@ -21,23 +22,21 @@ type ChunkList struct {
 func NewChunkList(trans ItemBuilder) *ChunkList {
 	return &ChunkList{
 		chunks: []*Chunk{},
-		count:  0,
 		mutex:  sync.Mutex{},
 		trans:  trans}
 }

-func (c *Chunk) push(trans ItemBuilder, data []byte, index int) bool {
-	item := trans(data, index)
-	if item.Nil() {
-		return false
+func (c *Chunk) push(trans ItemBuilder, data []byte) bool {
+	if trans(&c.items[c.count], data) {
+		c.count++
+		return true
 	}
-	*c = append(*c, item)
-	return true
+	return false
 }

 // IsFull returns true if the Chunk is full
 func (c *Chunk) IsFull() bool {
-	return len(*c) == chunkSize
+	return c.count == chunkSize
 }

 func (cl *ChunkList) lastChunk() *Chunk {
@@ -49,30 +48,25 @@ func CountItems(cs []*Chunk) int {
 	if len(cs) == 0 {
 		return 0
 	}
-	return chunkSize*(len(cs)-1) + len(*(cs[len(cs)-1]))
+	return chunkSize*(len(cs)-1) + cs[len(cs)-1].count
 }

 // Push adds the item to the list
 func (cl *ChunkList) Push(data []byte) bool {
 	cl.mutex.Lock()
-	defer cl.mutex.Unlock()

 	if len(cl.chunks) == 0 || cl.lastChunk().IsFull() {
-		newChunk := Chunk(make([]Item, 0, chunkSize))
-		cl.chunks = append(cl.chunks, &newChunk)
+		cl.chunks = append(cl.chunks, &Chunk{})
 	}

-	if cl.lastChunk().push(cl.trans, data, cl.count) {
-		cl.count++
-		return true
-	}
-	return false
+	ret := cl.lastChunk().push(cl.trans, data)
+	cl.mutex.Unlock()
+	return ret
 }

 // 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)
@@ -82,5 +76,7 @@ func (cl *ChunkList) Snapshot() ([]*Chunk, int) {
 		newChunk := *ret[cnt-1]
 		ret[cnt-1] = &newChunk
 	}
-	return ret, cl.count
+
+	cl.mutex.Unlock()
+	return ret, CountItems(ret)
 }
--- a/src/chunklist_test.go
+++ b/src/chunklist_test.go
@@ -11,10 +11,9 @@ func TestChunkList(t *testing.T) {
 	// FIXME global
 	sortCriteria = []criterion{byScore, byLength}

-	cl := NewChunkList(func(s []byte, i int) Item {
-		chars := util.ToChars(s)
-		chars.Index = int32(i * 2)
-		return Item{text: chars}
+	cl := NewChunkList(func(item *Item, s []byte) bool {
+		item.text = util.ToChars(s)
+		return true
 	})

 	// Snapshot
@@ -40,11 +39,11 @@ func TestChunkList(t *testing.T) {

 	// Check the content of the ChunkList
 	chunk1 := snapshot[0]
-	if len(*chunk1) != 2 {
+	if chunk1.count != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if (*chunk1)[0].text.ToString() != "hello" || (*chunk1)[0].Index() != 0 ||
-		(*chunk1)[1].text.ToString() != "world" || (*chunk1)[1].Index() != 2 {
+	if chunk1.items[0].text.ToString() != "hello" ||
+		chunk1.items[1].text.ToString() != "world" {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {
@@ -67,14 +66,14 @@ func TestChunkList(t *testing.T) {
 		!snapshot[1].IsFull() || snapshot[2].IsFull() || count != chunkSize*2+2 {
 		t.Error("Expected two full chunks and one more chunk")
 	}
-	if len(*snapshot[2]) != 2 {
+	if snapshot[2].count != 2 {
 		t.Error("Unexpected number of items")
 	}

 	cl.Push([]byte("hello"))
 	cl.Push([]byte("world"))

-	lastChunkCount := len(*snapshot[len(snapshot)-1])
+	lastChunkCount := snapshot[len(snapshot)-1].count
 	if lastChunkCount != 2 {
 		t.Error("Unexpected number of items:", lastChunkCount)
 	}
--- a/src/constants.go
+++ b/src/constants.go
@@ -9,14 +9,17 @@ import (

 const (
 	// Current version
-	version = "0.16.9"
+	version = "0.17.1"

 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
 	coordinatorDelayStep time.Duration = 10 * time.Millisecond

 	// Reader
-	readerBufferSize = 64 * 1024
+	readerBufferSize       = 64 * 1024
+	readerPollIntervalMin  = 10 * time.Millisecond
+	readerPollIntervalStep = 5 * time.Millisecond
+	readerPollIntervalMax  = 50 * time.Millisecond

 	// Terminal
 	initialDelay    = 20 * time.Millisecond
@@ -52,7 +55,7 @@ var defaultCommand string

 func init() {
 	if !util.IsWindows() {
-		defaultCommand = `command find -L . -mindepth 1 \( -path '*/\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \) -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-`
+		defaultCommand = `set -o pipefail; (command find -L . -mindepth 1 \( -path '*/\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \) -prune -o -type f -print -o -type l -print || command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print) 2> /dev/null | cut -b3-`
 	} else if os.Getenv("TERM") == "cygwin" {
 		defaultCommand = `sh -c "command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-"`
 	} else {
@@ -68,7 +71,7 @@ const (
 	EvtSearchProgress
 	EvtSearchFin
 	EvtHeader
-	EvtClose
+	EvtReady
 )

 const (
--- a/src/core.go
+++ b/src/core.go
@@ -69,54 +69,58 @@ func Run(opts *Options, revision string) {
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
 				trimmed, offsets, newState := extractColor(string(data), state, nil)
 				state = newState
-				return util.RunesToChars([]rune(trimmed)), offsets
+				return util.ToChars([]byte(trimmed)), offsets
 			}
 		} else {
 			// When color is disabled but ansi option is given,
 			// we simply strip out ANSI codes from the input
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
 				trimmed, _, _ := extractColor(string(data), nil, nil)
-				return util.RunesToChars([]rune(trimmed)), nil
+				return util.ToChars([]byte(trimmed)), nil
 			}
 		}
 	}

 	// Chunk list
 	var chunkList *ChunkList
+	var itemIndex int32
 	header := make([]string, 0, opts.HeaderLines)
 	if len(opts.WithNth) == 0 {
-		chunkList = NewChunkList(func(data []byte, index int) Item {
+		chunkList = NewChunkList(func(item *Item, data []byte) bool {
 			if len(header) < opts.HeaderLines {
 				header = append(header, string(data))
 				eventBox.Set(EvtHeader, header)
-				return nilItem
+				return false
 			}
-			chars, colors := ansiProcessor(data)
-			chars.Index = int32(index)
-			return Item{text: chars, colors: colors}
+			item.text, item.colors = ansiProcessor(data)
+			item.text.Index = itemIndex
+			itemIndex++
+			return true
 		})
 	} else {
-		chunkList = NewChunkList(func(data []byte, index int) Item {
+		chunkList = NewChunkList(func(item *Item, data []byte) bool {
 			tokens := Tokenize(string(data), opts.Delimiter)
 			trans := Transform(tokens, opts.WithNth)
 			transformed := joinTokens(trans)
 			if len(header) < opts.HeaderLines {
 				header = append(header, transformed)
 				eventBox.Set(EvtHeader, header)
-				return nilItem
+				return false
 			}
-			trimmed, colors := ansiProcessor([]byte(transformed))
-			trimmed.Index = int32(index)
-			return Item{text: trimmed, colors: colors, origText: &data}
+			item.text, item.colors = ansiProcessor([]byte(transformed))
+			item.text.Index = itemIndex
+			item.origText = &data
+			itemIndex++
+			return true
 		})
 	}

 	// Reader
 	streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
 	if !streamingFilter {
-		reader := Reader{func(data []byte) bool {
+		reader := NewReader(func(data []byte) bool {
 			return chunkList.Push(data)
-		}, eventBox, opts.ReadZero}
+		}, eventBox, opts.ReadZero)
 		go reader.ReadSource()
 	}

@@ -149,17 +153,17 @@ func Run(opts *Options, revision string) {
 		found := false
 		if streamingFilter {
 			slab := util.MakeSlab(slab16Size, slab32Size)
-			reader := Reader{
+			reader := NewReader(
 				func(runes []byte) bool {
-					item := chunkList.trans(runes, 0)
-					if !item.Nil() {
+					item := Item{}
+					if chunkList.trans(&item, runes) {
 						if result, _, _ := pattern.MatchItem(&item, false, slab); result != nil {
 							opts.Printer(item.text.ToString())
 							found = true
 						}
 					}
 					return false
-				}, eventBox, opts.ReadZero}
+				}, eventBox, opts.ReadZero)
 			reader.ReadSource()
 		} else {
 			eventBox.Unwatch(EvtReadNew)
@@ -205,7 +209,9 @@ func Run(opts *Options, revision string) {
 		delay := true
 		ticks++
 		eventBox.Wait(func(events *util.Events) {
-			defer events.Clear()
+			if _, fin := (*events)[EvtReadFin]; fin {
+				delete(*events, EvtReadNew)
+			}
 			for evt, value := range *events {
 				switch evt {

@@ -213,6 +219,9 @@ func Run(opts *Options, revision string) {
 					reading = reading && evt == EvtReadNew
 					snapshot, count := chunkList.Snapshot()
 					terminal.UpdateCount(count, !reading, value.(bool))
+					if opts.Sync {
+						terminal.UpdateList(PassMerger(&snapshot, opts.Tac))
+					}
 					matcher.Reset(snapshot, terminal.Input(), false, !reading, sort)

 				case EvtSearchNew:
@@ -265,6 +274,7 @@ func Run(opts *Options, revision string) {
 					}
 				}
 			}
+			events.Clear()
 		})
 		if delay && reading {
 			dur := util.DurWithin(
--- a/src/item.go
+++ b/src/item.go
@@ -17,11 +17,7 @@ func (item *Item) Index() int32 {
 	return item.text.Index
 }

-var nilItem = Item{text: util.Chars{Index: -1}}
-
-func (item *Item) Nil() bool {
-	return item.Index() < 0
-}
+var minItem = Item{text: util.Chars{Index: -1}}

 func (item *Item) TrimLength() uint16 {
 	return item.text.TrimLength()
--- a/src/merger.go
+++ b/src/merger.go
@@ -29,7 +29,7 @@ func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
 		count:   0}

 	for _, chunk := range *mg.chunks {
-		mg.count += len(*chunk)
+		mg.count += chunk.count
 	}
 	return &mg
 }
@@ -65,7 +65,7 @@ func (mg *Merger) Get(idx int) Result {
 			idx = mg.count - idx - 1
 		}
 		chunk := (*mg.chunks)[idx/chunkSize]
-		return Result{item: &(*chunk)[idx%chunkSize]}
+		return Result{item: &chunk.items[idx%chunkSize]}
 	}

 	if mg.sorted {
--- a/src/merger_test.go
+++ b/src/merger_test.go
@@ -17,7 +17,7 @@ func assert(t *testing.T, cond bool, msg ...string) {

 func randResult() Result {
 	str := fmt.Sprintf("%d", rand.Uint32())
-	chars := util.RunesToChars([]rune(str))
+	chars := util.ToChars([]byte(str))
 	chars.Index = rand.Int31()
 	return Result{item: &Item{text: chars}}
 }
--- a/src/options.go
+++ b/src/options.go
@@ -833,9 +833,6 @@ func parseSize(str string, maxPercent float64, label string) sizeSpec {
 }

 func parseHeight(str string) sizeSpec {
-	if util.IsWindows() {
-		errorExit("--height options is currently not supported on Windows")
-	}
 	size := parseSize(str, 100, "height")
 	return size
 }
@@ -962,7 +959,9 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--algo":
 			opts.FuzzyAlgo = parseAlgo(nextString(allArgs, &i, "algorithm required (v1|v2)"))
 		case "--expect":
-			opts.Expect = parseKeyChords(nextString(allArgs, &i, "key names required"), "key names required")
+			for k, v := range parseKeyChords(nextString(allArgs, &i, "key names required"), "key names required") {
+				opts.Expect[k] = v
+			}
 		case "--no-expect":
 			opts.Expect = make(map[int]string)
 		case "--tiebreak":
@@ -1140,7 +1139,9 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, value := optString(arg, "--toggle-sort="); match {
 				parseToggleSort(opts.Keymap, value)
 			} else if match, value := optString(arg, "--expect="); match {
-				opts.Expect = parseKeyChords(value, "key names required")
+				for k, v := range parseKeyChords(value, "key names required") {
+					opts.Expect[k] = v
+				}
 			} else if match, value := optString(arg, "--tiebreak="); match {
 				opts.Criteria = parseTiebreak(value)
 			} else if match, value := optString(arg, "--color="); match {
@@ -1199,6 +1200,9 @@ func parseOptions(opts *Options, allArgs []string) {
 }

 func postProcessOptions(opts *Options) {
+	if util.IsWindows() && opts.Height.size > 0 {
+		errorExit("--height option is currently not supported on Windows")
+	}
 	// Default actions for CTRL-N / CTRL-P when --history is set
 	if opts.History != nil {
 		if _, prs := opts.Keymap[tui.CtrlP]; !prs {
--- a/src/options_test.go
+++ b/src/options_test.go
@@ -414,3 +414,10 @@ func TestPreviewOpts(t *testing.T) {
 		t.Error(opts.Preview)
 	}
 }
+
+func TestAdditiveExpect(t *testing.T) {
+	opts := optsFor("--expect=a", "--expect", "b", "--expect=c")
+	if len(opts.Expect) != 3 {
+		t.Error(opts.Expect)
+	}
+}
--- a/src/pattern.go
+++ b/src/pattern.go
@@ -10,12 +10,12 @@ import (

 // fuzzy
 // 'exact
-// ^exact-prefix
-// exact-suffix$
-// !not-fuzzy
-// !'not-exact
-// !^not-exact-prefix
-// !not-exact-suffix$
+// ^prefix-exact
+// suffix-exact$
+// !inverse-exact
+// !'inverse-fuzzy
+// !^inverse-prefix-exact
+// !inverse-suffix-exact$

 type termType int

@@ -32,7 +32,6 @@ type term struct {
 	inv           bool
 	text          []rune
 	caseSensitive bool
-	origText      []rune
 }

 type termSet []term
@@ -48,6 +47,7 @@ type Pattern struct {
 	text          []rune
 	termSets      []termSet
 	cacheable     bool
+	cacheKey      string
 	delimiter     Delimiter
 	nth           []Range
 	procFun       map[termType]algo.Algo
@@ -60,7 +60,7 @@ var (
 )

 func init() {
-	_splitRegex = regexp.MustCompile("\\s+")
+	_splitRegex = regexp.MustCompile(" +")
 	clearPatternCache()
 	clearChunkCache()
 }
@@ -81,7 +81,10 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,

 	var asString string
 	if extended {
-		asString = strings.Trim(string(runes), " ")
+		asString = strings.TrimLeft(string(runes), " ")
+		for strings.HasSuffix(asString, " ") && !strings.HasSuffix(asString, "\\ ") {
+			asString = asString[:len(asString)-1]
+		}
 	} else {
 		asString = string(runes)
 	}
@@ -101,7 +104,7 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 			for idx, term := range termSet {
 				// If the query contains inverse search terms or OR operators,
 				// we cannot cache the search scope
-				if !cacheable || idx > 0 || term.inv || !fuzzy && term.typ != termExact {
+				if !cacheable || idx > 0 || term.inv || fuzzy && term.typ != termFuzzy || !fuzzy && term.typ != termExact {
 					cacheable = false
 					break Loop
 				}
@@ -130,6 +133,7 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 		delimiter:     delimiter,
 		procFun:       make(map[termType]algo.Algo)}

+	ptr.cacheKey = ptr.buildCacheKey()
 	ptr.procFun[termFuzzy] = fuzzyAlgo
 	ptr.procFun[termEqual] = algo.EqualMatch
 	ptr.procFun[termExact] = algo.ExactMatchNaive
@@ -141,27 +145,30 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 }

 func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet {
+	str = strings.Replace(str, "\\ ", "\t", -1)
 	tokens := _splitRegex.Split(str, -1)
 	sets := []termSet{}
 	set := termSet{}
 	switchSet := false
+	afterBar := false
 	for _, token := range tokens {
-		typ, inv, text := termFuzzy, false, token
+		typ, inv, text := termFuzzy, false, strings.Replace(token, "\t", " ", -1)
 		lowerText := strings.ToLower(text)
 		caseSensitive := caseMode == CaseRespect ||
 			caseMode == CaseSmart && text != lowerText
 		if !caseSensitive {
 			text = lowerText
 		}
-		origText := []rune(text)
 		if !fuzzy {
 			typ = termExact
 		}

-		if text == "|" {
+		if len(set) > 0 && !afterBar && text == "|" {
 			switchSet = false
+			afterBar = true
 			continue
 		}
+		afterBar = false

 		if strings.HasPrefix(text, "!") {
 			inv = true
@@ -169,6 +176,11 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 			text = text[1:]
 		}

+		if text != "$" && strings.HasSuffix(text, "$") {
+			typ = termSuffix
+			text = text[:len(text)-1]
+		}
+
 		if strings.HasPrefix(text, "'") {
 			// Flip exactness
 			if fuzzy && !inv {
@@ -179,16 +191,12 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
-			if strings.HasSuffix(text, "$") {
+			if typ == termSuffix {
 				typ = termEqual
-				text = text[1 : len(text)-1]
 			} else {
 				typ = termPrefix
-				text = text[1:]
 			}
-		} else if strings.HasSuffix(text, "$") {
-			typ = termSuffix
-			text = text[:len(text)-1]
+			text = text[1:]
 		}

 		if len(text) > 0 {
@@ -204,8 +212,7 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 				typ:           typ,
 				inv:           inv,
 				text:          textRunes,
-				caseSensitive: caseSensitive,
-				origText:      origText})
+				caseSensitive: caseSensitive})
 			switchSet = true
 		}
 	}
@@ -228,18 +235,22 @@ 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 {
+func (p *Pattern) buildCacheKey() string {
 	if !p.extended {
 		return p.AsString()
 	}
 	cacheableTerms := []string{}
 	for _, termSet := range p.termSets {
 		if len(termSet) == 1 && !termSet[0].inv && (p.fuzzy || termSet[0].typ == termExact) {
-			cacheableTerms = append(cacheableTerms, string(termSet[0].origText))
+			cacheableTerms = append(cacheableTerms, string(termSet[0].text))
 		}
 	}
-	return strings.Join(cacheableTerms, " ")
+	return strings.Join(cacheableTerms, "\t")
+}
+
+// CacheKey is used to build string to be used as the key of result cache
+func (p *Pattern) CacheKey() string {
+	return p.cacheKey
 }

 // Match returns the list of matches Items in the given Chunk
@@ -267,8 +278,8 @@ func (p *Pattern) matchChunk(chunk *Chunk, space []Result, slab *util.Slab) []Re
 	matches := []Result{}

 	if space == nil {
-		for idx := range *chunk {
-			if match, _, _ := p.MatchItem(&(*chunk)[idx], false, slab); match != nil {
+		for idx := 0; idx < chunk.count; idx++ {
+			if match, _, _ := p.MatchItem(&chunk.items[idx], false, slab); match != nil {
 				matches = append(matches, *match)
 			}
 		}
@@ -301,7 +312,12 @@ func (p *Pattern) MatchItem(item *Item, withPos bool, slab *util.Slab) (*Result,
 }

 func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
-	input := p.prepareInput(item)
+	var input []Token
+	if len(p.nth) == 0 {
+		input = []Token{Token{text: &item.text, prefixLength: 0}}
+	} else {
+		input = p.transformInput(item)
+	}
 	if p.fuzzy {
 		return p.iter(p.fuzzyAlgo, input, p.caseSensitive, p.normalize, p.forward, p.text, withPos, slab)
 	}
@@ -309,7 +325,12 @@ func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset,
 }

 func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Offset, int, *[]int) {
-	input := p.prepareInput(item)
+	var input []Token
+	if len(p.nth) == 0 {
+		input = []Token{Token{text: &item.text, prefixLength: 0}}
+	} else {
+		input = p.transformInput(item)
+	}
 	offsets := []Offset{}
 	var totalScore int
 	var allPos *[]int
@@ -353,11 +374,7 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 	return offsets, totalScore, allPos
 }

-func (p *Pattern) prepareInput(item *Item) []Token {
-	if len(p.nth) == 0 {
-		return []Token{Token{text: &item.text, prefixLength: 0}}
-	}
-
+func (p *Pattern) transformInput(item *Item) []Token {
 	if item.transformed != nil {
 		return *item.transformed
 	}
@@ -370,7 +387,7 @@ func (p *Pattern) prepareInput(item *Item) []Token {

 func (p *Pattern) iter(pfun algo.Algo, tokens []Token, caseSensitive bool, normalize bool, forward bool, pattern []rune, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
 	for _, part := range tokens {
-		if res, pos := pfun(caseSensitive, normalize, forward, *part.text, pattern, withPos, slab); res.Start >= 0 {
+		if res, pos := pfun(caseSensitive, normalize, forward, part.text, pattern, withPos, slab); res.Start >= 0 {
 			sidx := int32(res.Start) + part.prefixLength
 			eidx := int32(res.End) + part.prefixLength
 			if pos != nil {
--- a/src/pattern_test.go
+++ b/src/pattern_test.go
@@ -16,7 +16,7 @@ func init() {

 func TestParseTermsExtended(t *testing.T) {
 	terms := parseTerms(true, CaseSmart, false,
-		"| aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | | zzz$ | !ZZZ |")
+		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | zzz$ | !ZZZ |")
 	if len(terms) != 9 ||
 		terms[0][0].typ != termFuzzy || terms[0][0].inv ||
 		terms[1][0].typ != termExact || terms[1][0].inv ||
@@ -33,19 +33,11 @@ func TestParseTermsExtended(t *testing.T) {
 		terms[8][3].typ != termExact || !terms[8][3].inv {
 		t.Errorf("%s", terms)
 	}
-	for idx, termSet := range terms[:8] {
+	for _, termSet := range terms[:8] {
 		term := termSet[0]
 		if len(term.text) != 3 {
 			t.Errorf("%s", term)
 		}
-		if idx > 0 && len(term.origText) != 4+idx/5 {
-			t.Errorf("%s", term)
-		}
-	}
-	for _, term := range terms[8] {
-		if len(term.origText) != 4 {
-			t.Errorf("%s", term)
-		}
 	}
 }

@@ -66,7 +58,7 @@ func TestParseTermsExtendedExact(t *testing.T) {
 }

 func TestParseTermsEmpty(t *testing.T) {
-	terms := parseTerms(true, CaseSmart, false, "' $ ^ !' !^ !$")
+	terms := parseTerms(true, CaseSmart, false, "' ^ !' !^")
 	if len(terms) != 0 {
 		t.Errorf("%s", terms)
 	}
@@ -77,8 +69,9 @@ func TestExact(t *testing.T) {
 	clearPatternCache()
 	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true,
 		[]Range{}, Delimiter{}, []rune("'abc"))
+	chars := util.ToChars([]byte("aabbcc abc"))
 	res, pos := algo.ExactMatchNaive(
-		pattern.caseSensitive, pattern.normalize, pattern.forward, util.RunesToChars([]rune("aabbcc abc")), pattern.termSets[0][0].text, true, nil)
+		pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 	if res.Start != 7 || res.End != 10 {
 		t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 	}
@@ -93,8 +86,9 @@ func TestEqual(t *testing.T) {
 	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("^AbC$"))

 	match := func(str string, sidxExpected int, eidxExpected int) {
+		chars := util.ToChars([]byte(str))
 		res, pos := algo.EqualMatch(
-			pattern.caseSensitive, pattern.normalize, pattern.forward, util.RunesToChars([]rune(str)), pattern.termSets[0][0].text, true, nil)
+			pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 		if res.Start != sidxExpected || res.End != eidxExpected {
 			t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 		}
@@ -138,12 +132,11 @@ func TestOrigTextAndTransformed(t *testing.T) {

 	origBytes := []byte("junegunn.choi")
 	for _, extended := range []bool{false, true} {
-		chunk := Chunk{
-			Item{
-				text:        util.RunesToChars([]rune("junegunn")),
-				origText:    &origBytes,
-				transformed: &trans},
-		}
+		chunk := Chunk{count: 1}
+		chunk.items[0] = Item{
+			text:        util.ToChars([]byte("junegunn")),
+			origText:    &origBytes,
+			transformed: &trans}
 		pattern.extended = extended
 		matches := pattern.matchChunk(&chunk, nil, slab) // No cache
 		if !(matches[0].item.text.ToString() == "junegunn" &&
@@ -152,7 +145,7 @@ func TestOrigTextAndTransformed(t *testing.T) {
 			t.Error("Invalid match result", matches)
 		}

-		match, offsets, pos := pattern.MatchItem(&chunk[0], true, slab)
+		match, offsets, pos := pattern.MatchItem(&chunk.items[0], true, slab)
 		if !(match.item.text.ToString() == "junegunn" &&
 			string(*match.item.origText) == "junegunn.choi" &&
 			offsets[0][0] == 0 && offsets[0][1] == 5 &&
@@ -167,40 +160,47 @@ func TestOrigTextAndTransformed(t *testing.T) {

 func TestCacheKey(t *testing.T) {
 	test := func(extended bool, patStr string, expected string, cacheable bool) {
+		clearPatternCache()
 		pat := BuildPattern(true, algo.FuzzyMatchV2, extended, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune(patStr))
 		if pat.CacheKey() != expected {
 			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
 		}
 		if pat.cacheable != cacheable {
-			t.Errorf("Expected: %s, actual: %s (%s)", cacheable, pat.cacheable, patStr)
+			t.Errorf("Expected: %t, actual: %t (%s)", cacheable, pat.cacheable, patStr)
 		}
 		clearPatternCache()
 	}
 	test(false, "foo !bar", "foo !bar", true)
 	test(false, "foo | bar !baz", "foo | bar !baz", true)
-	test(true, "foo  bar  baz", "foo bar baz", true)
+	test(true, "foo  bar  baz", "foo\tbar\tbaz", true)
 	test(true, "foo !bar", "foo", false)
-	test(true, "foo !bar   baz", "foo baz", false)
+	test(true, "foo !bar   baz", "foo\tbaz", false)
 	test(true, "foo | bar baz", "baz", false)
 	test(true, "foo | bar | baz", "", false)
 	test(true, "foo | bar !baz", "", false)
-	test(true, "| | | foo", "foo", true)
+	test(true, "| | foo", "", false)
+	test(true, "| | | foo", "foo", false)
 }

 func TestCacheable(t *testing.T) {
-	test := func(fuzzy bool, str string, cacheable bool) {
+	test := func(fuzzy bool, str string, expected string, cacheable bool) {
 		clearPatternCache()
 		pat := BuildPattern(fuzzy, algo.FuzzyMatchV2, true, CaseSmart, true, true, true, []Range{}, Delimiter{}, []rune(str))
+		if pat.CacheKey() != expected {
+			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
+		}
 		if cacheable != pat.cacheable {
 			t.Errorf("Invalid Pattern.cacheable for \"%s\": %v (expected: %v)", str, pat.cacheable, cacheable)
 		}
+		clearPatternCache()
 	}
-	test(true, "foo bar", true)
-	test(true, "foo 'bar", true)
-	test(true, "foo !bar", false)
+	test(true, "foo bar", "foo\tbar", true)
+	test(true, "foo 'bar", "foo\tbar", false)
+	test(true, "foo !bar", "foo", false)

-	test(false, "foo bar", true)
-	test(false, "foo '", true)
-	test(false, "foo 'bar", false)
-	test(false, "foo !bar", false)
+	test(false, "foo bar", "foo\tbar", true)
+	test(false, "foo 'bar", "foo", false)
+	test(false, "foo '", "foo", true)
+	test(false, "foo 'bar", "foo", false)
+	test(false, "foo !bar", "foo", false)
 }
--- a/src/reader.go
+++ b/src/reader.go
@@ -4,6 +4,8 @@ import (
 	"bufio"
 	"io"
 	"os"
+	"sync/atomic"
+	"time"

 	"github.com/junegunn/fzf/src/util"
 )
@@ -13,21 +15,56 @@ type Reader struct {
 	pusher   func([]byte) bool
 	eventBox *util.EventBox
 	delimNil bool
+	event    int32
+}
+
+// NewReader returns new Reader object
+func NewReader(pusher func([]byte) bool, eventBox *util.EventBox, delimNil bool) *Reader {
+	return &Reader{pusher, eventBox, delimNil, int32(EvtReady)}
+}
+
+func (r *Reader) startEventPoller() {
+	go func() {
+		ptr := &r.event
+		pollInterval := readerPollIntervalMin
+		for {
+			if atomic.CompareAndSwapInt32(ptr, int32(EvtReadNew), int32(EvtReady)) {
+				r.eventBox.Set(EvtReadNew, true)
+				pollInterval = readerPollIntervalMin
+			} else if atomic.LoadInt32(ptr) == int32(EvtReadFin) {
+				return
+			} else {
+				pollInterval += readerPollIntervalStep
+				if pollInterval > readerPollIntervalMax {
+					pollInterval = readerPollIntervalMax
+				}
+			}
+			time.Sleep(pollInterval)
+		}
+	}()
+}
+
+func (r *Reader) fin(success bool) {
+	atomic.StoreInt32(&r.event, int32(EvtReadFin))
+	r.eventBox.Set(EvtReadFin, success)
 }

 // ReadSource reads data from the default command or from standard input
 func (r *Reader) ReadSource() {
+	r.startEventPoller()
 	var success bool
 	if util.IsTty() {
 		cmd := os.Getenv("FZF_DEFAULT_COMMAND")
 		if len(cmd) == 0 {
-			cmd = defaultCommand
+			// The default command for *nix requires bash
+			success = r.readFromCommand("bash", defaultCommand)
+		} else {
+			success = r.readFromCommand("sh", cmd)
 		}
-		success = r.readFromCommand(cmd)
 	} else {
 		success = r.readFromStdin()
 	}
-	r.eventBox.Set(EvtReadFin, success)
+	r.fin(success)
 }

 func (r *Reader) feed(src io.Reader) {
@@ -41,7 +78,7 @@ func (r *Reader) feed(src io.Reader) {
 		// end in delim.
 		bytea, err := reader.ReadBytes(delim)
 		byteaLen := len(bytea)
-		if len(bytea) > 0 {
+		if byteaLen > 0 {
 			if err == nil {
 				// get rid of carriage return if under Windows:
 				if util.IsWindows() && byteaLen >= 2 && bytea[byteaLen-2] == byte('\r') {
@@ -51,7 +88,7 @@ func (r *Reader) feed(src io.Reader) {
 				}
 			}
 			if r.pusher(bytea) {
-				r.eventBox.Set(EvtReadNew, true)
+				atomic.StoreInt32(&r.event, int32(EvtReadNew))
 			}
 		}
 		if err != nil {
@@ -65,8 +102,8 @@ func (r *Reader) readFromStdin() bool {
 	return true
 }

-func (r *Reader) readFromCommand(cmd string) bool {
-	listCommand := util.ExecCommand(cmd)
+func (r *Reader) readFromCommand(shell string, cmd string) bool {
+	listCommand := util.ExecCommandWith(shell, cmd)
 	out, err := listCommand.StdoutPipe()
 	if err != nil {
 		return false
--- a/src/reader_test.go
+++ b/src/reader_test.go
@@ -2,6 +2,7 @@ package fzf

 import (
 	"testing"
+	"time"

 	"github.com/junegunn/fzf/src/util"
 )
@@ -11,7 +12,10 @@ func TestReadFromCommand(t *testing.T) {
 	eb := util.NewEventBox()
 	reader := Reader{
 		pusher:   func(s []byte) bool { strs = append(strs, string(s)); return true },
-		eventBox: eb}
+		eventBox: eb,
+		event:    int32(EvtReady)}
+
+	reader.startEventPoller()

 	// Check EventBox
 	if eb.Peek(EvtReadNew) {
@@ -19,21 +23,16 @@ func TestReadFromCommand(t *testing.T) {
 	}

 	// Normal command
-	reader.readFromCommand(`echo abc && echo def`)
+	reader.fin(reader.readFromCommand("sh", `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")
-	}
+	eb.WaitFor(EvtReadFin)

 	// Wait should return immediately
 	eb.Wait(func(events *util.Events) {
-		if _, found := (*events)[EvtReadNew]; !found {
-			t.Errorf("%s", events)
-		}
 		events.Clear()
 	})

@@ -42,8 +41,14 @@ func TestReadFromCommand(t *testing.T) {
 		t.Error("EvtReadNew should not be set yet")
 	}

+	// Make sure that event poller is finished
+	time.Sleep(readerPollIntervalMax)
+
+	// Restart event poller
+	reader.startEventPoller()
+
 	// Failing command
-	reader.readFromCommand(`no-such-command`)
+	reader.fin(reader.readFromCommand("sh", `no-such-command`))
 	strs = []string{}
 	if len(strs) > 0 {
 		t.Errorf("%s", strs)
@@ -51,6 +56,9 @@ func TestReadFromCommand(t *testing.T) {

 	// Check EventBox again
 	if eb.Peek(EvtReadNew) {
-		t.Error("Command failed. EvtReadNew should be set")
+		t.Error("Command failed. EvtReadNew should not be set")
+	}
+	if !eb.Peek(EvtReadFin) {
+		t.Error("EvtReadFin should be set")
 	}
 }
--- a/src/result.go
+++ b/src/result.go
@@ -70,7 +70,7 @@ func buildResult(item *Item, offsets []Offset, score int) Result {
 				}
 			}
 		}
-		result.points[idx] = val
+		result.points[3-idx] = val
 	}

 	return result
@@ -85,7 +85,7 @@ func (result *Result) Index() int32 {
 }

 func minRank() Result {
-	return Result{item: &nilItem, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
+	return Result{item: &minItem, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
 }

 func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme, color tui.ColorPair, attr tui.Attr, current bool) []colorOffset {
@@ -224,16 +224,3 @@ func (a ByRelevanceTac) Swap(i, j int) {
 func (a ByRelevanceTac) Less(i, j int) bool {
 	return compareRanks(a[i], a[j], true)
 }
-
-func compareRanks(irank Result, jrank Result, tac bool) bool {
-	for idx := 0; idx < 4; idx++ {
-		left := irank.points[idx]
-		right := jrank.points[idx]
-		if left < right {
-			return true
-		} else if left > right {
-			return false
-		}
-	}
-	return (irank.item.Index() <= jrank.item.Index()) != tac
-}
--- a/src/result_others.go
+++ b/src/result_others.go
@@ -0,0 +1,16 @@
+// +build !386,!amd64
+
+package fzf
+
+func compareRanks(irank Result, jrank Result, tac bool) bool {
+	for idx := 3; idx >= 0; idx-- {
+		left := irank.points[idx]
+		right := jrank.points[idx]
+		if left < right {
+			return true
+		} else if left > right {
+			return false
+		}
+	}
+	return (irank.item.Index() <= jrank.item.Index()) != tac
+}
--- a/src/result_test.go
+++ b/src/result_test.go
@@ -59,10 +59,10 @@ func TestResultRank(t *testing.T) {
 	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
 	item1 := buildResult(
 		withIndex(&Item{text: util.RunesToChars(strs[0])}, 1), []Offset{}, 2)
-	if item1.points[0] != math.MaxUint16-2 || // Bonus
-		item1.points[1] != 3 || // Length
-		item1.points[2] != 0 || // Unused
-		item1.points[3] != 0 || // Unused
+	if item1.points[3] != math.MaxUint16-2 || // Bonus
+		item1.points[2] != 3 || // Length
+		item1.points[1] != 0 || // Unused
+		item1.points[0] != 0 || // Unused
 		item1.item.Index() != 1 {
 		t.Error(item1)
 	}
--- a/src/result_x86.go
+++ b/src/result_x86.go
@@ -0,0 +1,16 @@
+// +build 386 amd64
+
+package fzf
+
+import "unsafe"
+
+func compareRanks(irank Result, jrank Result, tac bool) bool {
+	left := *(*uint64)(unsafe.Pointer(&irank.points[0]))
+	right := *(*uint64)(unsafe.Pointer(&jrank.points[0]))
+	if left < right {
+		return true
+	} else if left > right {
+		return false
+	}
+	return (irank.item.Index() <= jrank.item.Index()) != tac
+}
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -101,6 +101,7 @@ type Terminal struct {
 	printer    func(string)
 	merger     *Merger
 	selected   map[int32]selectedItem
+	version    int64
 	reqBox     *util.EventBox
 	preview    previewOpts
 	previewer  previewer
@@ -280,9 +281,13 @@ func defaultKeymap() map[int][]action {
 	return keymap
 }

+func trimQuery(query string) []rune {
+	return []rune(strings.Replace(query, "\t", " ", -1))
+}
+
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
-	input := []rune(opts.Query)
+	input := trimQuery(opts.Query)
 	var header []string
 	if opts.Reverse {
 		header = opts.Header
@@ -618,10 +623,8 @@ func (t *Terminal) resizeWindows() {
 			width,
 			height, tui.BorderNone)
 	}
-	if !t.tui.IsOptimized() {
-		for i := 0; i < t.window.Height(); i++ {
-			t.window.MoveAndClear(i, 0)
-		}
+	for i := 0; i < t.window.Height(); i++ {
+		t.window.MoveAndClear(i, 0)
 	}
 	t.truncateQuery()
 }
@@ -712,12 +715,12 @@ func (t *Terminal) printHeader() {
 		trimmed, colors, newState := extractColor(lineStr, state, nil)
 		state = newState
 		item := &Item{
-			text:   util.RunesToChars([]rune(trimmed)),
+			text:   util.ToChars([]byte(trimmed)),
 			colors: colors}

 		t.move(line, 2, true)
 		t.printHighlighted(Result{item: item},
-			tui.AttrRegular, tui.ColHeader, tui.ColDefault, false, false)
+			tui.AttrRegular, tui.ColHeader, tui.ColHeader, false, false)
 	}
 }

@@ -770,8 +773,7 @@ func (t *Terminal) printItem(result Result, line int, i int, current bool) {
 		return
 	}

-	// Optimized renderer can simply erase to the end of the window
-	t.move(line, 0, t.tui.IsOptimized())
+	t.move(line, 0, false)
 	t.window.CPrint(tui.ColCursor, t.strong, label)
 	if current {
 		if selected {
@@ -788,11 +790,9 @@ func (t *Terminal) printItem(result Result, line int, i int, current bool) {
 		}
 		newLine.width = t.printHighlighted(result, 0, tui.ColNormal, tui.ColMatch, false, true)
 	}
-	if !t.tui.IsOptimized() {
-		fillSpaces := prevLine.width - newLine.width
-		if fillSpaces > 0 {
-			t.window.Print(strings.Repeat(" ", fillSpaces))
-		}
+	fillSpaces := prevLine.width - newLine.width
+	if fillSpaces > 0 {
+		t.window.Print(strings.Repeat(" ", fillSpaces))
 	}
 	t.prevLines[i] = newLine
 }
@@ -985,7 +985,7 @@ func (t *Terminal) printPreview() {
 				if t.theme != nil && ansi != nil && ansi.colored() {
 					fillRet = t.pwindow.CFill(ansi.fg, ansi.bg, ansi.attr, str)
 				} else {
-					fillRet = t.pwindow.Fill(str)
+					fillRet = t.pwindow.CFill(tui.ColNormal.Fg(), tui.ColNormal.Bg(), tui.AttrRegular, str)
 				}
 				return fillRet == tui.FillContinue
 			})
@@ -1103,9 +1103,18 @@ func keyMatch(key int, event tui.Event) bool {
 		event.Type == tui.Mouse && key == tui.DoubleClick && event.MouseEvent.Double
 }

+func quoteEntryCmd(entry string) string {
+	escaped := strings.Replace(entry, `\`, `\\`, -1)
+	escaped = `"` + strings.Replace(escaped, `"`, `\"`, -1) + `"`
+	r, _ := regexp.Compile(`[&|<>()@^%!"]`)
+	return r.ReplaceAllStringFunc(escaped, func(match string) string {
+		return "^" + match
+	})
+}
+
 func quoteEntry(entry string) string {
 	if util.IsWindows() {
-		return strconv.Quote(strings.Replace(entry, "\"", "\\\"", -1))
+		return quoteEntryCmd(entry)
 	}
 	return "'" + strings.Replace(entry, "'", "'\\''", -1) + "'"
 }
@@ -1173,8 +1182,7 @@ func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, fo
 		}

 		for idx, item := range items {
-			chars := util.RunesToChars([]rune(item.AsString(stripAnsi)))
-			tokens := Tokenize(chars.ToString(), delimiter)
+			tokens := Tokenize(item.AsString(stripAnsi), delimiter)
 			trans := Transform(tokens, ranges)
 			str := string(joinTokens(trans))
 			if delimiter.str != nil {
@@ -1258,6 +1266,24 @@ func (t *Terminal) truncateQuery() {
 	t.cx = util.Constrain(t.cx, 0, len(t.input))
 }

+func (t *Terminal) selectItem(item *Item) {
+	t.selected[item.Index()] = selectedItem{time.Now(), item}
+	t.version++
+}
+
+func (t *Terminal) deselectItem(item *Item) {
+	delete(t.selected, item.Index())
+	t.version++
+}
+
+func (t *Terminal) toggleItem(item *Item) {
+	if _, found := t.selected[item.Index()]; !found {
+		t.selectItem(item)
+	} else {
+		t.deselectItem(item)
+	}
+}
+
 // Loop is called to start Terminal I/O
 func (t *Terminal) Loop() {
 	// prof := profile.Start(profile.ProfilePath("/tmp/"))
@@ -1360,6 +1386,7 @@ func (t *Terminal) Loop() {

 	go func() {
 		var focused *Item
+		var version int64
 		for {
 			t.reqBox.Wait(func(events *util.Events) {
 				defer events.Clear()
@@ -1376,7 +1403,8 @@ func (t *Terminal) Loop() {
 					case reqList:
 						t.printList()
 						currentFocus := t.currentItem()
-						if currentFocus != focused {
+						if currentFocus != focused || version != t.version {
+							version = t.version
 							focused = currentFocus
 							if t.isPreviewEnabled() {
 								_, list := t.buildPlusList(t.preview.command, false)
@@ -1442,22 +1470,9 @@ func (t *Terminal) Loop() {
 				}
 			}
 		}
-		selectItem := func(item *Item) bool {
-			if _, found := t.selected[item.Index()]; !found {
-				t.selected[item.Index()] = selectedItem{time.Now(), item}
-				return true
-			}
-			return false
-		}
-		toggleY := func(y int) {
-			item := t.merger.Get(y).item
-			if !selectItem(item) {
-				delete(t.selected, item.Index())
-			}
-		}
 		toggle := func() {
 			if t.cy < t.merger.Length() {
-				toggleY(t.cy)
+				t.toggleItem(t.merger.Get(t.cy).item)
 				req(reqInfo)
 			}
 		}
@@ -1571,17 +1586,14 @@ func (t *Terminal) Loop() {
 			case actSelectAll:
 				if t.multi {
 					for i := 0; i < t.merger.Length(); i++ {
-						item := t.merger.Get(i).item
-						selectItem(item)
+						t.selectItem(t.merger.Get(i).item)
 					}
 					req(reqList, reqInfo)
 				}
 			case actDeselectAll:
 				if t.multi {
-					for i := 0; i < t.merger.Length(); i++ {
-						item := t.merger.Get(i)
-						delete(t.selected, item.Index())
-					}
+					t.selected = make(map[int32]selectedItem)
+					t.version++
 					req(reqList, reqInfo)
 				}
 			case actToggle:
@@ -1592,7 +1604,7 @@ func (t *Terminal) Loop() {
 			case actToggleAll:
 				if t.multi {
 					for i := 0; i < t.merger.Length(); i++ {
-						toggleY(i)
+						t.toggleItem(t.merger.Get(i).item)
 					}
 					req(reqList, reqInfo)
 				}
@@ -1690,13 +1702,13 @@ func (t *Terminal) Loop() {
 			case actPreviousHistory:
 				if t.history != nil {
 					t.history.override(string(t.input))
-					t.input = []rune(t.history.previous())
+					t.input = trimQuery(t.history.previous())
 					t.cx = len(t.input)
 				}
 			case actNextHistory:
 				if t.history != nil {
 					t.history.override(string(t.input))
-					t.input = []rune(t.history.next())
+					t.input = trimQuery(t.history.next())
 					t.cx = len(t.input)
 				}
 			case actSigStop:
--- a/src/terminal_test.go
+++ b/src/terminal_test.go
@@ -10,7 +10,7 @@ import (
 func newItem(str string) *Item {
 	bytes := []byte(str)
 	trimmed, _, _ := extractColor(str, nil, nil)
-	return &Item{origText: &bytes, text: util.RunesToChars([]rune(trimmed))}
+	return &Item{origText: &bytes, text: util.ToChars([]byte(trimmed))}
 }

 func TestReplacePlaceholder(t *testing.T) {
@@ -91,3 +91,22 @@ func TestReplacePlaceholder(t *testing.T) {
 	result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, false, "query", items1)
 	check("echo '  foo'\\''bar baz'/'f'/'r b'/''\\''bar b'")
 }
+
+func TestQuoteEntryCmd(t *testing.T) {
+	tests := map[string]string{
+		`"`:                       `^"\^"^"`,
+		`\`:                       `^"\\^"`,
+		`\"`:                      `^"\\\^"^"`,
+		`"\\\"`:                   `^"\^"\\\\\\\^"^"`,
+		`&|<>()@^%!`:              `^"^&^|^<^>^(^)^@^^^%^!^"`,
+		`%USERPROFILE%`:           `^"^%USERPROFILE^%^"`,
+		`C:\Program Files (x86)\`: `^"C:\\Program Files ^(x86^)\\^"`,
+	}
+
+	for input, expected := range tests {
+		escaped := quoteEntryCmd(input)
+		if escaped != expected {
+			t.Errorf("Input: %s, expected: %s, actual %s", input, expected, escaped)
+		}
+	}
+}
--- a/src/tokenizer.go
+++ b/src/tokenizer.go
@@ -147,7 +147,7 @@ func Tokenize(text string, delimiter Delimiter) []Token {
 	if delimiter.regex != nil {
 		for len(text) > 0 {
 			loc := delimiter.regex.FindStringIndex(text)
-			if loc == nil {
+			if len(loc) < 2 {
 				loc = []int{0, len(text)}
 			}
 			last := util.Max(loc[1], 1)
--- a/src/tui/dummy.go
+++ b/src/tui/dummy.go
@@ -33,7 +33,6 @@ func (r *FullscreenRenderer) Refresh()    {}
 func (r *FullscreenRenderer) Close()      {}

 func (r *FullscreenRenderer) DoesAutoWrap() bool { return false }
-func (r *FullscreenRenderer) IsOptimized() bool  { return false }
 func (r *FullscreenRenderer) GetChar() Event     { return Event{} }
 func (r *FullscreenRenderer) MaxX() int          { return 0 }
 func (r *FullscreenRenderer) MaxY() int          { return 0 }
--- a/src/tui/light.go
+++ b/src/tui/light.go
@@ -32,7 +32,8 @@ var offsetRegexp *regexp.Regexp = regexp.MustCompile("\x1b\\[([0-9]+);([0-9]+)R"
 func openTtyIn() *os.File {
 	in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
 	if err != nil {
-		panic("Failed to open " + consoleDevice)
+		fmt.Fprintln(os.Stderr, "Failed to open "+consoleDevice)
+		os.Exit(2)
 	}
 	return in
 }
@@ -104,6 +105,7 @@ type LightWindow struct {
 	posx     int
 	posy     int
 	tabstop  int
+	fg       Color
 	bg       Color
 }

@@ -208,7 +210,9 @@ func (r *LightRenderer) Init() {
 	r.csi(fmt.Sprintf("%dA", r.MaxY()-1))
 	r.csi("G")
 	r.csi("K")
-	r.csi("s")
+	if !r.clearOnExit && !r.fullscreen {
+		r.csi("s")
+	}
 	if !r.fullscreen && r.mouse {
 		r.yoffset, _ = r.findOffset()
 	}
@@ -616,10 +620,6 @@ func (r *LightRenderer) DoesAutoWrap() bool {
 	return false
 }

-func (r *LightRenderer) IsOptimized() bool {
-	return false
-}
-
 func (r *LightRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
 	w := &LightWindow{
 		renderer: r,
@@ -630,8 +630,10 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, bord
 		width:    width,
 		height:   height,
 		tabstop:  r.tabstop,
+		fg:       colDefault,
 		bg:       colDefault}
 	if r.theme != nil {
+		w.fg = r.theme.Fg
 		w.bg = r.theme.Bg
 	}
 	w.drawBorder()
@@ -878,12 +880,15 @@ func (w *LightWindow) Fill(text string) FillReturn {

 func (w *LightWindow) CFill(fg Color, bg Color, attr Attr, text string) FillReturn {
 	w.Move(w.posy, w.posx)
+	if fg == colDefault {
+		fg = w.fg
+	}
 	if bg == colDefault {
 		bg = w.bg
 	}
 	if w.csiColor(fg, bg, attr) {
-		return w.fill(text, func() { w.csiColor(fg, bg, attr) })
 		defer w.csi("m")
+		return w.fill(text, func() { w.csiColor(fg, bg, attr) })
 	}
 	return w.fill(text, w.setBg)
 }
--- a/src/tui/ncurses.go
+++ b/src/tui/ncurses.go
@@ -1,505 +0,0 @@
-// +build ncurses
-// +build !windows
-// +build !tcell
-
-package tui
-
-/*
-#include <ncurses.h>
-#include <locale.h>
-#cgo !static LDFLAGS: -lncurses
-#cgo static LDFLAGS: -l:libncursesw.a -l:libtinfo.a -l:libgpm.a -ldl
-#cgo android static LDFLAGS: -l:libncurses.a -fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch
-
-FILE* c_tty() {
-	return fopen("/dev/tty", "r");
-}
-
-SCREEN* c_newterm(FILE* tty) {
-	return newterm(NULL, stderr, tty);
-}
-
-int c_getcurx(WINDOW* win) {
-	return getcurx(win);
-}
-*/
-import "C"
-
-import (
-	"os"
-	"strconv"
-	"strings"
-	"time"
-	"unicode/utf8"
-)
-
-func HasFullscreenRenderer() bool {
-	return true
-}
-
-type Attr C.uint
-
-type CursesWindow struct {
-	impl   *C.WINDOW
-	top    int
-	left   int
-	width  int
-	height int
-}
-
-func (w *CursesWindow) Top() int {
-	return w.top
-}
-
-func (w *CursesWindow) Left() int {
-	return w.left
-}
-
-func (w *CursesWindow) Width() int {
-	return w.width
-}
-
-func (w *CursesWindow) Height() int {
-	return w.height
-}
-
-func (w *CursesWindow) Refresh() {
-	C.wnoutrefresh(w.impl)
-}
-
-func (w *CursesWindow) FinishFill() {
-	// NO-OP
-}
-
-const (
-	Bold      Attr = C.A_BOLD
-	Dim            = C.A_DIM
-	Blink          = C.A_BLINK
-	Reverse        = C.A_REVERSE
-	Underline      = C.A_UNDERLINE
-)
-
-var Italic Attr = C.A_VERTICAL << 1 // FIXME
-
-const (
-	AttrRegular Attr = 0
-)
-
-var (
-	_screen   *C.SCREEN
-	_colorMap map[int]int16
-	_colorFn  func(ColorPair, Attr) (C.short, C.int)
-)
-
-func init() {
-	_colorMap = make(map[int]int16)
-	if strings.HasPrefix(C.GoString(C.curses_version()), "ncurses 5") {
-		Italic = C.A_NORMAL
-	}
-}
-
-func (a Attr) Merge(b Attr) Attr {
-	return a | b
-}
-
-func (r *FullscreenRenderer) defaultTheme() *ColorTheme {
-	if C.tigetnum(C.CString("colors")) >= 256 {
-		return Dark256
-	}
-	return Default16
-}
-
-func (r *FullscreenRenderer) Init() {
-	C.setlocale(C.LC_ALL, C.CString(""))
-	tty := C.c_tty()
-	if tty == nil {
-		errorExit("Failed to open /dev/tty")
-	}
-	_screen = C.c_newterm(tty)
-	if _screen == nil {
-		errorExit("Invalid $TERM: " + os.Getenv("TERM"))
-	}
-	C.set_term(_screen)
-	if r.mouse {
-		C.mousemask(C.ALL_MOUSE_EVENTS, nil)
-		C.mouseinterval(0)
-	}
-	C.noecho()
-	C.raw() // stty dsusp undef
-	C.nonl()
-	C.keypad(C.stdscr, true)
-
-	delay := 50
-	delayEnv := os.Getenv("ESCDELAY")
-	if len(delayEnv) > 0 {
-		num, err := strconv.Atoi(delayEnv)
-		if err == nil && num >= 0 {
-			delay = num
-		}
-	}
-	C.set_escdelay(C.int(delay))
-
-	if r.theme != nil {
-		C.start_color()
-		initTheme(r.theme, r.defaultTheme(), r.forceBlack)
-		initPairs(r.theme)
-		C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal.index()))))
-		_colorFn = attrColored
-	} else {
-		initTheme(r.theme, nil, r.forceBlack)
-		_colorFn = attrMono
-	}
-
-	C.nodelay(C.stdscr, true)
-	ch := C.getch()
-	if ch != C.ERR {
-		C.ungetch(ch)
-	}
-	C.nodelay(C.stdscr, false)
-}
-
-func initPairs(theme *ColorTheme) {
-	C.assume_default_colors(C.int(theme.Fg), C.int(theme.Bg))
-	for _, pair := range []ColorPair{
-		ColNormal,
-		ColPrompt,
-		ColMatch,
-		ColCurrent,
-		ColCurrentMatch,
-		ColSpinner,
-		ColInfo,
-		ColCursor,
-		ColSelected,
-		ColHeader,
-		ColBorder} {
-		C.init_pair(C.short(pair.index()), C.short(pair.Fg()), C.short(pair.Bg()))
-	}
-}
-
-func (r *FullscreenRenderer) Pause(bool) {
-	C.endwin()
-}
-
-func (r *FullscreenRenderer) Resume(bool) {
-}
-
-func (r *FullscreenRenderer) Close() {
-	C.endwin()
-	C.delscreen(_screen)
-}
-
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
-	win := C.newwin(C.int(height), C.int(width), C.int(top), C.int(left))
-	if r.theme != nil {
-		C.wbkgd(win, C.chtype(C.COLOR_PAIR(C.int(ColNormal.index()))))
-	}
-	// FIXME Does not implement BorderHorizontal
-	if borderStyle != BorderNone {
-		pair, attr := _colorFn(ColBorder, 0)
-		C.wcolor_set(win, pair, nil)
-		C.wattron(win, attr)
-		C.box(win, 0, 0)
-		C.wattroff(win, attr)
-		C.wcolor_set(win, 0, nil)
-	}
-
-	return &CursesWindow{
-		impl:   win,
-		top:    top,
-		left:   left,
-		width:  width,
-		height: height,
-	}
-}
-
-func attrColored(color ColorPair, a Attr) (C.short, C.int) {
-	return C.short(color.index()), C.int(a)
-}
-
-func attrMono(color ColorPair, a Attr) (C.short, C.int) {
-	return 0, C.int(attrFor(color, a))
-}
-
-func (r *FullscreenRenderer) MaxX() int {
-	return int(C.COLS)
-}
-
-func (r *FullscreenRenderer) MaxY() int {
-	return int(C.LINES)
-}
-
-func (w *CursesWindow) Close() {
-	C.delwin(w.impl)
-}
-
-func (w *CursesWindow) Enclose(y int, x int) bool {
-	return bool(C.wenclose(w.impl, C.int(y), C.int(x)))
-}
-
-func (w *CursesWindow) Move(y int, x int) {
-	C.wmove(w.impl, C.int(y), C.int(x))
-}
-
-func (w *CursesWindow) MoveAndClear(y int, x int) {
-	w.Move(y, x)
-	C.wclrtoeol(w.impl)
-}
-
-func (w *CursesWindow) Print(text string) {
-	C.waddstr(w.impl, C.CString(strings.Map(func(r rune) rune {
-		if r < 32 {
-			return -1
-		}
-		return r
-	}, text)))
-}
-
-func (w *CursesWindow) CPrint(color ColorPair, attr Attr, text string) {
-	p, a := _colorFn(color, attr)
-	C.wcolor_set(w.impl, p, nil)
-	C.wattron(w.impl, a)
-	w.Print(text)
-	C.wattroff(w.impl, a)
-	C.wcolor_set(w.impl, 0, nil)
-}
-
-func (r *FullscreenRenderer) Clear() {
-	C.clear()
-	C.endwin()
-}
-
-func (r *FullscreenRenderer) Refresh() {
-	C.refresh()
-}
-
-func (w *CursesWindow) Erase() {
-	C.werase(w.impl)
-}
-
-func (w *CursesWindow) X() int {
-	return int(C.c_getcurx(w.impl))
-}
-
-func (r *FullscreenRenderer) DoesAutoWrap() bool {
-	return true
-}
-
-func (r *FullscreenRenderer) IsOptimized() bool {
-	return true
-}
-
-func (w *CursesWindow) Fill(str string) FillReturn {
-	if C.waddstr(w.impl, C.CString(str)) == C.OK {
-		return FillContinue
-	}
-	return FillSuspend
-}
-
-func (w *CursesWindow) CFill(fg Color, bg Color, attr Attr, str string) FillReturn {
-	index := ColorPair{fg, bg, -1}.index()
-	C.wcolor_set(w.impl, C.short(index), nil)
-	C.wattron(w.impl, C.int(attr))
-	ret := w.Fill(str)
-	C.wattroff(w.impl, C.int(attr))
-	C.wcolor_set(w.impl, 0, nil)
-	return ret
-}
-
-func (r *FullscreenRenderer) RefreshWindows(windows []Window) {
-	for _, w := range windows {
-		w.Refresh()
-	}
-	C.doupdate()
-}
-
-func (p ColorPair) index() int16 {
-	if p.id >= 0 {
-		return p.id
-	}
-
-	// ncurses does not support 24-bit colors
-	if p.is24() {
-		return ColDefault.index()
-	}
-
-	key := p.key()
-	if found, prs := _colorMap[key]; prs {
-		return found
-	}
-
-	id := int16(len(_colorMap)) + ColUser.id
-	C.init_pair(C.short(id), C.short(p.Fg()), C.short(p.Bg()))
-	_colorMap[key] = id
-	return id
-}
-
-func consume(expects ...rune) bool {
-	for _, r := range expects {
-		if int(C.getch()) != int(r) {
-			return false
-		}
-	}
-	return true
-}
-
-func escSequence() Event {
-	C.nodelay(C.stdscr, true)
-	defer func() {
-		C.nodelay(C.stdscr, false)
-	}()
-	c := C.getch()
-	switch c {
-	case C.ERR:
-		return Event{ESC, 0, nil}
-	case CtrlM:
-		return Event{CtrlAltM, 0, nil}
-	case '/':
-		return Event{AltSlash, 0, nil}
-	case ' ':
-		return Event{AltSpace, 0, nil}
-	case 127, C.KEY_BACKSPACE:
-		return Event{AltBS, 0, nil}
-	case '[':
-		// Bracketed paste mode (printf "\e[?2004h")
-		// \e[200~ TEXT \e[201~
-		if consume('2', '0', '0', '~') {
-			return Event{Invalid, 0, nil}
-		}
-	}
-	if c >= 'a' && c <= 'z' {
-		return Event{AltA + int(c) - 'a', 0, nil}
-	}
-
-	if c >= '0' && c <= '9' {
-		return Event{Alt0 + int(c) - '0', 0, nil}
-	}
-
-	// Don't care. Ignore the rest.
-	for ; c != C.ERR; c = C.getch() {
-	}
-	return Event{Invalid, 0, nil}
-}
-
-func (r *FullscreenRenderer) GetChar() Event {
-	c := C.getch()
-	switch c {
-	case C.ERR:
-		// Unexpected error from blocking read
-		r.Close()
-		errorExit("Failed to read /dev/tty")
-	case C.KEY_UP:
-		return Event{Up, 0, nil}
-	case C.KEY_DOWN:
-		return Event{Down, 0, nil}
-	case C.KEY_LEFT:
-		return Event{Left, 0, nil}
-	case C.KEY_RIGHT:
-		return Event{Right, 0, nil}
-	case C.KEY_HOME:
-		return Event{Home, 0, nil}
-	case C.KEY_END:
-		return Event{End, 0, nil}
-	case C.KEY_BACKSPACE:
-		return Event{BSpace, 0, nil}
-	case C.KEY_F0 + 1:
-		return Event{F1, 0, nil}
-	case C.KEY_F0 + 2:
-		return Event{F2, 0, nil}
-	case C.KEY_F0 + 3:
-		return Event{F3, 0, nil}
-	case C.KEY_F0 + 4:
-		return Event{F4, 0, nil}
-	case C.KEY_F0 + 5:
-		return Event{F5, 0, nil}
-	case C.KEY_F0 + 6:
-		return Event{F6, 0, nil}
-	case C.KEY_F0 + 7:
-		return Event{F7, 0, nil}
-	case C.KEY_F0 + 8:
-		return Event{F8, 0, nil}
-	case C.KEY_F0 + 9:
-		return Event{F9, 0, nil}
-	case C.KEY_F0 + 10:
-		return Event{F10, 0, nil}
-	case C.KEY_F0 + 11:
-		return Event{F11, 0, nil}
-	case C.KEY_F0 + 12:
-		return Event{F12, 0, nil}
-	case C.KEY_DC:
-		return Event{Del, 0, nil}
-	case C.KEY_PPAGE:
-		return Event{PgUp, 0, nil}
-	case C.KEY_NPAGE:
-		return Event{PgDn, 0, nil}
-	case C.KEY_BTAB:
-		return Event{BTab, 0, nil}
-	case C.KEY_ENTER:
-		return Event{CtrlM, 0, nil}
-	case C.KEY_SLEFT:
-		return Event{SLeft, 0, nil}
-	case C.KEY_SRIGHT:
-		return Event{SRight, 0, nil}
-	case C.KEY_MOUSE:
-		var me C.MEVENT
-		if C.getmouse(&me) != C.ERR {
-			mod := ((me.bstate & C.BUTTON_SHIFT) | (me.bstate & C.BUTTON_CTRL) | (me.bstate & C.BUTTON_ALT)) > 0
-			x := int(me.x)
-			y := int(me.y)
-			/* Cannot use BUTTON1_DOUBLE_CLICKED due to mouseinterval(0) */
-			if (me.bstate & C.BUTTON1_PRESSED) > 0 {
-				now := time.Now()
-				if now.Sub(r.prevDownTime) < doubleClickDuration {
-					r.clickY = append(r.clickY, y)
-				} else {
-					r.clickY = []int{y}
-					r.prevDownTime = now
-				}
-				return Event{Mouse, 0, &MouseEvent{y, x, 0, true, false, mod}}
-			} else if (me.bstate & C.BUTTON1_RELEASED) > 0 {
-				double := false
-				if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
-					time.Now().Sub(r.prevDownTime) < doubleClickDuration {
-					double = true
-				}
-				return Event{Mouse, 0, &MouseEvent{y, x, 0, false, double, mod}}
-			} else if (me.bstate&0x8000000) > 0 || (me.bstate&0x80) > 0 {
-				return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
-			} else if (me.bstate & C.BUTTON4_PRESSED) > 0 {
-				return Event{Mouse, 0, &MouseEvent{y, x, 1, false, false, mod}}
-			}
-		}
-		return Event{Invalid, 0, nil}
-	case C.KEY_RESIZE:
-		return Event{Resize, 0, nil}
-	case ESC:
-		return escSequence()
-	case 127:
-		return Event{BSpace, 0, nil}
-	case 0:
-		return Event{CtrlSpace, 0, nil}
-	}
-	// CTRL-A ~ CTRL-Z
-	if c >= CtrlA && c <= CtrlZ {
-		return Event{int(c), 0, nil}
-	}
-
-	// Multi-byte character
-	buffer := []byte{byte(c)}
-	for {
-		r, _ := utf8.DecodeRune(buffer)
-		if r != utf8.RuneError {
-			return Event{Rune, r, nil}
-		}
-
-		c := C.getch()
-		if c == C.ERR {
-			break
-		}
-		if c >= C.KEY_CODE_YES {
-			C.ungetch(c)
-			break
-		}
-		buffer = append(buffer, byte(c))
-	}
-	return Event{Invalid, 0, nil}
-}
--- a/src/tui/tcell.go
+++ b/src/tui/tcell.go
@@ -172,10 +172,6 @@ func (r *FullscreenRenderer) DoesAutoWrap() bool {
 	return false
 }

-func (r *FullscreenRenderer) IsOptimized() bool {
-	return false
-}
-
 func (r *FullscreenRenderer) Clear() {
 	_screen.Sync()
 	_screen.Clear()
@@ -409,14 +405,13 @@ func (w *TcellWindow) Close() {
 func fill(x, y, w, h int, r rune) {
 	for ly := 0; ly <= h; ly++ {
 		for lx := 0; lx <= w; lx++ {
-			_screen.SetContent(x+lx, y+ly, r, nil, ColDefault.style())
+			_screen.SetContent(x+lx, y+ly, r, nil, ColNormal.style())
 		}
 	}
 }

 func (w *TcellWindow) Erase() {
-	// TODO
-	fill(w.left, w.top, w.width, w.height, ' ')
+	fill(w.left-1, w.top, w.width+1, w.height, ' ')
 }

 func (w *TcellWindow) Enclose(y int, x int) bool {
@@ -433,13 +428,13 @@ func (w *TcellWindow) Move(y int, x int) {
 func (w *TcellWindow) MoveAndClear(y int, x int) {
 	w.Move(y, x)
 	for i := w.lastX; i < w.width; i++ {
-		_screen.SetContent(i+w.left, w.lastY+w.top, rune(' '), nil, ColDefault.style())
+		_screen.SetContent(i+w.left, w.lastY+w.top, rune(' '), nil, ColNormal.style())
 	}
 	w.lastX = x
 }

 func (w *TcellWindow) Print(text string) {
-	w.printString(text, ColDefault, 0)
+	w.printString(text, ColNormal, 0)
 }

 func (w *TcellWindow) printString(text string, pair ColorPair, a Attr) {
@@ -452,7 +447,7 @@ func (w *TcellWindow) printString(text string, pair ColorPair, a Attr) {
 			Reverse(a&Attr(tcell.AttrReverse) != 0).
 			Underline(a&Attr(tcell.AttrUnderline) != 0)
 	} else {
-		style = ColDefault.style().
+		style = ColNormal.style().
 			Reverse(a&Attr(tcell.AttrReverse) != 0 || pair == ColCurrent || pair == ColCurrentMatch).
 			Underline(a&Attr(tcell.AttrUnderline) != 0 || pair == ColMatch || pair == ColCurrentMatch)
 	}
@@ -503,7 +498,7 @@ func (w *TcellWindow) fillString(text string, pair ColorPair, a Attr) FillReturn
 	if w.color {
 		style = pair.style()
 	} else {
-		style = ColDefault.style()
+		style = ColNormal.style()
 	}
 	style = style.
 		Blink(a&Attr(tcell.AttrBlink) != 0).
@@ -543,11 +538,17 @@ func (w *TcellWindow) fillString(text string, pair ColorPair, a Attr) FillReturn
 }

 func (w *TcellWindow) Fill(str string) FillReturn {
-	return w.fillString(str, ColDefault, 0)
+	return w.fillString(str, ColNormal, 0)
 }

 func (w *TcellWindow) CFill(fg Color, bg Color, a Attr, str string) FillReturn {
-	return w.fillString(str, ColorPair{fg, bg, -1}, a)
+	if fg == colDefault {
+		fg = ColNormal.Fg()
+	}
+	if bg == colDefault {
+		bg = ColNormal.Bg()
+	}
+	return w.fillString(str, NewColorPair(fg, bg), a)
 }

 func (w *TcellWindow) drawBorder(around bool) {
@@ -560,7 +561,7 @@ func (w *TcellWindow) drawBorder(around bool) {
 	if w.color {
 		style = ColBorder.style()
 	} else {
-		style = ColDefault.style()
+		style = ColNormal.style()
 	}

 	for x := left; x < right; x++ {
--- a/src/tui/tui.go
+++ b/src/tui/tui.go
@@ -133,7 +133,7 @@ const (
 type ColorPair struct {
 	fg Color
 	bg Color
-	id int16
+	id int
 }

 func HexToColor(rrggbb string) Color {
@@ -155,12 +155,8 @@ func (p ColorPair) Bg() Color {
 	return p.bg
 }

-func (p ColorPair) key() int {
-	return (int(p.Fg()) << 8) + int(p.Bg())
-}
-
 func (p ColorPair) is24() bool {
-	return p.Fg().is24() || p.Bg().is24()
+	return p.fg.is24() || p.bg.is24()
 }

 type ColorTheme struct {
@@ -179,10 +175,6 @@ type ColorTheme struct {
 	Border       Color
 }

-func (t *ColorTheme) HasBg() bool {
-	return t.Bg != colDefault
-}
-
 type Event struct {
 	Type       int
 	Char       rune
@@ -220,7 +212,6 @@ type Renderer interface {
 	MaxX() int
 	MaxY() int
 	DoesAutoWrap() bool
-	IsOptimized() bool

 	NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window
 }
@@ -271,7 +262,6 @@ var (
 	Dark256   *ColorTheme
 	Light256  *ColorTheme

-	ColDefault      ColorPair
 	ColNormal       ColorPair
 	ColPrompt       ColorPair
 	ColMatch        ColorPair
@@ -283,7 +273,6 @@ var (
 	ColSelected     ColorPair
 	ColHeader       ColorPair
 	ColBorder       ColorPair
-	ColUser         ColorPair
 )

 func EmptyTheme() *ColorTheme {
@@ -387,33 +376,36 @@ func initTheme(theme *ColorTheme, baseTheme *ColorTheme, forceBlack bool) {
 }

 func initPalette(theme *ColorTheme) {
-	ColDefault = ColorPair{colDefault, colDefault, 0}
-	if theme != nil {
-		ColNormal = ColorPair{theme.Fg, theme.Bg, 1}
-		ColPrompt = ColorPair{theme.Prompt, theme.Bg, 2}
-		ColMatch = ColorPair{theme.Match, theme.Bg, 3}
-		ColCurrent = ColorPair{theme.Current, theme.DarkBg, 4}
-		ColCurrentMatch = ColorPair{theme.CurrentMatch, theme.DarkBg, 5}
-		ColSpinner = ColorPair{theme.Spinner, theme.Bg, 6}
-		ColInfo = ColorPair{theme.Info, theme.Bg, 7}
-		ColCursor = ColorPair{theme.Cursor, theme.DarkBg, 8}
-		ColSelected = ColorPair{theme.Selected, theme.DarkBg, 9}
-		ColHeader = ColorPair{theme.Header, theme.Bg, 10}
-		ColBorder = ColorPair{theme.Border, theme.Bg, 11}
-	} else {
-		ColNormal = ColorPair{colDefault, colDefault, 1}
-		ColPrompt = ColorPair{colDefault, colDefault, 2}
-		ColMatch = ColorPair{colDefault, colDefault, 3}
-		ColCurrent = ColorPair{colDefault, colDefault, 4}
-		ColCurrentMatch = ColorPair{colDefault, colDefault, 5}
-		ColSpinner = ColorPair{colDefault, colDefault, 6}
-		ColInfo = ColorPair{colDefault, colDefault, 7}
-		ColCursor = ColorPair{colDefault, colDefault, 8}
-		ColSelected = ColorPair{colDefault, colDefault, 9}
-		ColHeader = ColorPair{colDefault, colDefault, 10}
-		ColBorder = ColorPair{colDefault, colDefault, 11}
+	idx := 0
+	pair := func(fg, bg Color) ColorPair {
+		idx++
+		return ColorPair{fg, bg, idx}
+	}
+	if theme != nil {
+		ColNormal = pair(theme.Fg, theme.Bg)
+		ColPrompt = pair(theme.Prompt, theme.Bg)
+		ColMatch = pair(theme.Match, theme.Bg)
+		ColCurrent = pair(theme.Current, theme.DarkBg)
+		ColCurrentMatch = pair(theme.CurrentMatch, theme.DarkBg)
+		ColSpinner = pair(theme.Spinner, theme.Bg)
+		ColInfo = pair(theme.Info, theme.Bg)
+		ColCursor = pair(theme.Cursor, theme.DarkBg)
+		ColSelected = pair(theme.Selected, theme.DarkBg)
+		ColHeader = pair(theme.Header, theme.Bg)
+		ColBorder = pair(theme.Border, theme.Bg)
+	} else {
+		ColNormal = pair(colDefault, colDefault)
+		ColPrompt = pair(colDefault, colDefault)
+		ColMatch = pair(colDefault, colDefault)
+		ColCurrent = pair(colDefault, colDefault)
+		ColCurrentMatch = pair(colDefault, colDefault)
+		ColSpinner = pair(colDefault, colDefault)
+		ColInfo = pair(colDefault, colDefault)
+		ColCursor = pair(colDefault, colDefault)
+		ColSelected = pair(colDefault, colDefault)
+		ColHeader = pair(colDefault, colDefault)
+		ColBorder = pair(colDefault, colDefault)
 	}
-	ColUser = ColorPair{colDefault, colDefault, 12}
 }

 func attrFor(color ColorPair, attr Attr) Attr {
--- a/src/util/chars.go
+++ b/src/util/chars.go
@@ -24,12 +24,12 @@ type Chars struct {

 func checkAscii(bytes []byte) (bool, int) {
 	i := 0
-	for ; i < len(bytes)-8; i += 8 {
+	for ; i <= len(bytes)-8; i += 8 {
 		if (overflow64 & *(*uint64)(unsafe.Pointer(&bytes[i]))) > 0 {
 			return false, i
 		}
 	}
-	for ; i < len(bytes)-4; i += 4 {
+	for ; i <= len(bytes)-4; i += 4 {
 		if (overflow32 & *(*uint32)(unsafe.Pointer(&bytes[i]))) > 0 {
 			return false, i
 		}
@@ -65,6 +65,14 @@ func RunesToChars(runes []rune) Chars {
 	return Chars{slice: *(*[]byte)(unsafe.Pointer(&runes)), inBytes: false}
 }

+func (chars *Chars) IsBytes() bool {
+	return chars.inBytes
+}
+
+func (chars *Chars) Bytes() []byte {
+	return chars.slice
+}
+
 func (chars *Chars) optionalRunes() []rune {
 	if chars.inBytes {
 		return nil
@@ -152,7 +160,7 @@ func (chars *Chars) CopyRunes(dest []rune) {
 		copy(dest, runes)
 		return
 	}
-	for idx, b := range chars.slice {
+	for idx, b := range chars.slice[:len(dest)] {
 		dest[idx] = rune(b)
 	}
 	return
--- a/src/util/eventbox.go
+++ b/src/util/eventbox.go
@@ -26,23 +26,23 @@ func NewEventBox() *EventBox {
 // Wait blocks the goroutine until signaled
 func (b *EventBox) Wait(callback func(*Events)) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()

 	if len(b.events) == 0 {
 		b.cond.Wait()
 	}

 	callback(&b.events)
+	b.cond.L.Unlock()
 }

 // Set turns on the event type on the box
 func (b *EventBox) Set(event EventType, value interface{}) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	b.events[event] = value
 	if _, found := b.ignore[event]; !found {
 		b.cond.Broadcast()
 	}
+	b.cond.L.Unlock()
 }

 // Clear clears the events
@@ -56,27 +56,27 @@ func (events *Events) Clear() {
 // Peek peeks at the event box if the given event is set
 func (b *EventBox) Peek(event EventType) bool {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	_, ok := b.events[event]
+	b.cond.L.Unlock()
 	return ok
 }

 // Watch deletes the events from the ignore list
 func (b *EventBox) Watch(events ...EventType) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	for _, event := range events {
 		delete(b.ignore, event)
 	}
+	b.cond.L.Unlock()
 }

 // Unwatch adds the events to the ignore list
 func (b *EventBox) Unwatch(events ...EventType) {
 	b.cond.L.Lock()
-	defer b.cond.L.Unlock()
 	for _, event := range events {
 		b.ignore[event] = true
 	}
+	b.cond.L.Unlock()
 }

 // WaitFor blocks the execution until the event is received
--- a/src/util/util_unix.go
+++ b/src/util/util_unix.go
@@ -14,6 +14,11 @@ func ExecCommand(command string) *exec.Cmd {
 	if len(shell) == 0 {
 		shell = "sh"
 	}
+	return ExecCommandWith(shell, command)
+}
+
+// ExecCommandWith executes the given command with the specified shell
+func ExecCommandWith(shell string, command string) *exec.Cmd {
 	return exec.Command(shell, "-c", command)
 }

--- a/src/util/util_windows.go
+++ b/src/util/util_windows.go
@@ -3,20 +3,27 @@
 package util

 import (
+	"fmt"
 	"os"
 	"os/exec"
 	"syscall"
-
-	"github.com/mattn/go-shellwords"
 )

-// ExecCommand executes the given command with $SHELL
+// ExecCommand executes the given command with cmd
 func ExecCommand(command string) *exec.Cmd {
-	args, _ := shellwords.Parse(command)
-	allArgs := make([]string, len(args)+1)
-	allArgs[0] = "/c"
-	copy(allArgs[1:], args)
-	return exec.Command("cmd", allArgs...)
+	return ExecCommandWith("cmd", command)
+}
+
+// ExecCommandWith executes the given command with cmd. _shell parameter is
+// ignored on Windows.
+func ExecCommandWith(_shell string, command string) *exec.Cmd {
+	cmd := exec.Command("cmd")
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		HideWindow:    false,
+		CmdLine:       fmt.Sprintf(` /s /c "%s"`, command),
+		CreationFlags: 0,
+	}
+	return cmd
 }

 // IsWindows returns true on Windows
--- a/test/fzf.vader
+++ b/test/fzf.vader
@@ -6,11 +6,11 @@ Execute (Setup):

 Execute (fzf#run with dir option):
  let cwd = getcwd()
-  let result = fzf#run({ 'options': '--filter=vdr', 'dir': g:dir })
+  let result = fzf#run({ 'source': 'git ls-files', 'options': '--filter=vdr', 'dir': g:dir })
  AssertEqual ['fzf.vader'], result
  AssertEqual getcwd(), cwd

-  let result = sort(fzf#run({ 'options': '--filter e', 'dir': g:dir }))
+  let result = sort(fzf#run({ 'source': 'git ls-files', 'options': '--filter e', 'dir': g:dir }))
  AssertEqual ['fzf.vader', 'test_go.rb'], result
  AssertEqual getcwd(), cwd

@@ -19,7 +19,7 @@ Execute (fzf#run with Funcref command):
  function! g:FzfTest(e)
    call add(g:ret, a:e)
  endfunction
-  let result = sort(fzf#run({ 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
+  let result = sort(fzf#run({ 'source': 'git ls-files', 'sink': function('g:FzfTest'), 'options': '--filter e', 'dir': g:dir }))
  AssertEqual ['fzf.vader', 'test_go.rb'], result
  AssertEqual ['fzf.vader', 'test_go.rb'], sort(g:ret)

@@ -140,7 +140,7 @@ Execute (fzf#wrap):
  let g:fzf_history_dir = '/tmp'
  let opts = fzf#wrap('foobar', {'options': '--color light'})
  Log opts
-  Assert opts.options =~ '--history /tmp/foobar'
+  Assert opts.options =~ "--history '/tmp/foobar'"
  Assert opts.options =~ '--color light'

  let g:fzf_colors = { 'fg': ['fg', 'Error'] }
@@ -149,16 +149,18 @@ Execute (fzf#wrap):

 Execute (fzf#shellescape with sh):
  AssertEqual '''''', fzf#shellescape('', 'sh')
+  AssertEqual '''\''', fzf#shellescape('\', 'sh')
  AssertEqual '''""''', fzf#shellescape('""', 'sh')
  AssertEqual '''foobar>''', fzf#shellescape('foobar>', 'sh')
-  AssertEqual '''\"''', fzf#shellescape('\"', 'sh')
+  AssertEqual '''\\\"\\\''', fzf#shellescape('\\\"\\\', 'sh')
  AssertEqual '''echo ''\''''a''\'''' && echo ''\''''b''\''''''', fzf#shellescape('echo ''a'' && echo ''b''', 'sh')

 Execute (fzf#shellescape with cmd.exe):
  AssertEqual '^"^"', fzf#shellescape('', 'cmd.exe')
+  AssertEqual '^"\\^"', fzf#shellescape('\', 'cmd.exe')
  AssertEqual '^"\^"\^"^"', fzf#shellescape('""', 'cmd.exe')
  AssertEqual '^"foobar^>^"', fzf#shellescape('foobar>', 'cmd.exe')
-  AssertEqual '^"\\\^"\\^"', fzf#shellescape('\\\\\\\\"\', 'cmd.exe')
+  AssertEqual '^"\\\\\\\^"\\\\\\^"', fzf#shellescape('\\\"\\\', 'cmd.exe')
  AssertEqual '^"echo ''a'' ^&^& echo ''b''^"', fzf#shellescape('echo ''a'' && echo ''b''', 'cmd.exe')

  AssertEqual '^"C:\Program Files ^(x86^)\\^"', fzf#shellescape('C:\Program Files (x86)\', 'cmd.exe')
--- a/test/test_go.rb
+++ b/test/test_go.rb
Author	SHA1	Message	Date
Junegunn Choi	0b33dc6ce1	0.17.1	2017-10-16 01:58:57 +09:00
Junegunn Choi	64a6ced62e	Do not immediately check --height option on Windows (#1082 )	2017-10-15 19:02:05 +09:00
Junegunn Choi	438f6c96cd	Fix compilation error of Windows binary	2017-10-15 18:32:59 +09:00
Junegunn Choi	6ae085f974	Add link to Windows wiki page Related: #1072 /cc @janlazo	2017-10-15 17:44:25 +09:00
Junegunn Choi	cb8e97274e	Update README to add an example of _fzf_compgen_dir /cc @chrisjohnson Close #1067 Close #1083	2017-10-14 16:18:46 +09:00
Jan Edmund Lazo	c4185e81e8	Fix ExecCommandWith for cmd.exe in Windows (#1072 ) Close #1018 Run the command as is in cmd.exe with no parsing and escaping. Explicity set cmd.SysProcAttr so execCommand does not escape the command. Technically, the command should be escaped with ^ for special characters, including ". This allows cmd.exe commands to be chained together. See https://github.com/neovim/neovim/pull/7343#issuecomment-333350201 This commit also updates quoteEntry to use strings.Replace instead of strconv.Quote which escapes more than \ and ".	2017-10-14 15:26:37 +09:00
Ionel Cristian Mărieș	0580fe9046	Don't do shell quoting for weird chars (#1079 ) * Don't do shell quoting for weird chars This would prevent tabs from being escaped as `$'\t'` (definitely not what I would want to see as initial value in the search). * Do different escape.	2017-10-10 12:27:01 +09:00
Junegunn Choi	1b1bc9ea36	[install] Download arm8 binaries on Linux aarch64 Close #1060	2017-10-08 03:52:55 +09:00
Junegunn Choi	c2614467cf	[neovim] Fix Neovim plugin to use terminal instead of --height Close #1066 Close #1068	2017-09-30 22:13:43 +09:00
Junegunn Choi	077ae51f05	[vim] Use Vim 8 terminal when appropriate Close #1055	2017-09-29 01:11:00 +09:00
Junegunn Choi	ee40212e97	Update FZF_DEFAULT_COMMAND - Use bash for `set -o pipefail` - Fall back to simpler find command when the original command failed Related: #1061	2017-09-28 23:05:02 +09:00
Ricardo González	7f5f6efbac	[fzf-tmux] Executes fzf from fzf-tmux with a process name (#1056 )	2017-09-28 22:23:44 +09:00
Josh Pencheon	45d4c57d91	[completion] Include host aliases in ssh completion (#1062 )	2017-09-27 00:18:01 +09:00
Robert Orzanna	41e0208335	Update Homebrew/Linuxbrew instructions (#1052 )	2017-09-17 17:12:20 +09:00
Lawrence Wu	2f8238342b	[install] Don't touch dotfiles if not requested (#1048 )	2017-09-11 09:18:26 +09:00
Junegunn Choi	e1582b8323	Clean up renderer code Remove code that is no longer relevant after the removal of ncurses renderer. This commit also fixes background color issue on tcell-based FullscreenRenderer (Windows).	2017-09-09 23:20:42 +09:00
Junegunn Choi	7cfa6f0265	Fix custom foreground color inside preview window (addendum) This fixes foreground color inside preview window when the text has ANSI attributes except for foreground color. Close #1046	2017-09-08 18:33:17 +09:00
Junegunn Choi	e3973c74e7	Fix custom foreground color inside preview window Close #1046	2017-09-08 18:18:54 +09:00
Junegunn Choi	a8deca2dd9	[vim] Update README-VIM: fzf can run inside GVim	2017-09-07 12:42:40 +09:00
Junegunn Choi	a78ade1771	Update link to performance chart	2017-09-07 12:38:34 +09:00
Jan Edmund Lazo	79d2ef4616	[vim] Do not pathshorten prompt in cygwin (#1043 ) Prevents the following case: before pathshorten - /usr/bin after pathshorten - /u/bin piped to cmd.exe - U:/bin	2017-09-07 11:03:26 +09:00
Junegunn Choi	5edc3f755c	[vim] Update FZF command not set up lengthy prompt on narrow screen Port of `e7928d154a` Since :FZF does not enable preview window, we determine based on full &columns instead of &columns / 2.	2017-09-07 11:01:40 +09:00
Junegunn Choi	288976310b	Update g:fzf_colors example	2017-09-06 10:44:25 +09:00
Junegunn Choi	58b5be8ab6	0.17.0-2	2017-09-05 13:40:58 +09:00
Jan Edmund Lazo	26d7896877	[vim] Bind Ctrl-J in Vim terminal to fix enter key Temporary workaround for non-Windows environment Reference: https://github.com/vim/vim/issues/1998 https://github.com/junegunn/fzf/pull/1019#issuecomment-327008348	2017-09-05 13:29:46 +09:00
Jan Edmund Lazo	fd6bc7308f	[vim] Use s:execute_term in Windows IMPORTANT: cmd.exe and powershell are fine in default Windows terminal. cmd.exe prompt is broken on ConEmu because it natively supports ucs-2 only. utf-16 support is exclusive to .Net (ie. powershell). utf-8 supports requires chcp, external program, but does not fix the cmd.exe prompt. Use powershell on ConEmu to avoid corrupted text on display	2017-09-05 13:29:46 +09:00
Jan Edmund Lazo	6c41c95f28	[vim] s:execute_term works in GVim on Windows Requirements: - compiled with +terminal - has patch-8.0.995 - has('gui_running') returns 1	2017-09-05 13:29:46 +09:00
Jan Edmund Lazo	446e04469d	[neovim] use batchfile for s:execute_term in Windows	2017-09-05 13:29:46 +09:00
Michael Smith	5097e563df	[neovim] Fix terminal buffer marker on Windows Original Patch: `a9bf29b65e`	2017-09-05 13:29:46 +09:00
Jan Edmund Lazo	c7ad97c641	[neovim] use terminal in Windows for v0.2.1+	2017-09-05 13:29:46 +09:00
Junegunn Choi	9516fe3324	[install] Add --no-{bash,zsh,fish} Close #1040	2017-09-03 11:45:22 +09:00
Junegunn Choi	20cdbac8c3	[install] Ignore user-defined grep aliases	2017-09-03 11:38:22 +09:00
Junegunn Choi	e3e7b3360c	Delete ncurses implementation	2017-09-02 03:19:50 +09:00
Junegunn Choi	655dfb8328	[fzf-tmux] Remove cat command Close #1039	2017-09-01 18:46:00 +09:00
Mike Hearn	9b9c67b768	[fzf-tmux] Add pane_height/pane_width fallback (#1037 )	2017-09-01 11:16:00 +09:00
Junegunn Choi	5b7457ff08	[install] Wait for a linefeed when asking for confirmation Close #1035	2017-09-01 02:45:48 +09:00
Junegunn Choi	48adad5454	[neovim] Set &shell to sh (again) after opening a new window Close #1031	2017-08-30 18:58:28 +09:00
Jack O'Connor	b27dc3eb17	[vim] Add parens around piped source commands (#1029 ) Previously a command like `echo a && echo b` would get transformed into `echo a && echo b \| fzf`, which only pipes the output of the second command. Adding parentheses around the source command avoids this issue, and works on both Unix and Windows.	2017-08-28 22:32:13 +09:00
Junegunn Choi	e89eebb7ba	0.17.0	2017-08-27 03:32:21 +09:00
Junegunn Choi	fee404399a	Make --expect additive Similarly to --bind or --color. --expect used to replace the previously specified keys, and fzf#wrap({'options': '--expect=f1'}) wouldn't work as expected. It forced us to come up with some ugly hacks like the following: `13b27c45c8/autoload/fzf/vim.vim (L1086)`	2017-08-27 02:19:56 +09:00
Junegunn Choi	6b4805ca1a	Optimize rank comparison on x86 (little-endian)	2017-08-27 01:46:11 +09:00
Junegunn Choi	159699b5d7	Remove an unnecessary code branch	2017-08-26 20:09:46 +09:00
Junegunn Choi	af809c9661	Minor refactorings	2017-08-26 03:24:42 +09:00
Junegunn Choi	329de8f416	[fzf-tmux] Execute trap with bash instead of the default shell Close #1007	2017-08-26 02:51:19 +09:00
Junegunn Choi	e825b07e85	[neovim] Allow running FZF in multiple windows Close #1023	2017-08-26 01:56:49 +09:00
Junegunn Choi	71fdb99a07	Remove bound checkings in inner loops	2017-08-26 01:28:39 +09:00
Junegunn Choi	55ee4186aa	Ignore EvtReadNew if EvtReadFin is already set	2017-08-20 14:30:17 +09:00
Junegunn Choi	941b0a0ff7	Minor optimization of FuzzyMatchV2 Calculate the first row of the score matrix during phase 2	2017-08-20 12:29:11 +09:00
Junegunn Choi	6aae12288e	Extract debug code from FuzzyMatchV2	2017-08-20 12:29:11 +09:00
Junegunn Choi	302cc552ef	Remove unused clear arguments of alloc16 and alloc32	2017-08-20 12:29:11 +09:00
Junegunn Choi	a2a4df0886	Pass util.Chars by pointer	2017-08-20 12:29:11 +09:00
Jan Edmund Lazo	3399e39968	[vim] Escape backslashes in fzf#shellescape (#1021 )	2017-08-20 12:28:36 +09:00
Junegunn Choi	87874bba88	Remove redundant read event when --sync is used	2017-08-20 01:58:51 +09:00
Junegunn Choi	c304fc4333	Delay slab allocation	2017-08-19 12:14:48 +09:00
Junegunn Choi	6977cf268f	Limit search scope of uppercase letter	2017-08-18 05:30:13 +09:00
Junegunn Choi	931c78a70c	Short-circuit ANSI processing if no ANSI codes are found Rework of `656963e`. Makes --ansi processing around 20% faster on plain strings without ANSI codes.	2017-08-18 03:04:11 +09:00
Junegunn Choi	8d23646fe6	Revert "Short-circuit ANSI processing if no ANSI codes are found" This reverts commit `656963e018`.	2017-08-17 19:12:44 +09:00
Junegunn Choi	656963e018	Short-circuit ANSI processing if no ANSI codes are found	2017-08-17 19:12:06 +09:00
Junegunn Choi	644277faf1	Linuxbrew can install fzf Close #1017	2017-08-17 16:57:02 +09:00
Junegunn Choi	0558dfee79	Remove count field from ChunkList	2017-08-16 12:26:06 +09:00
Junegunn Choi	487c8fe88f	Make Reader event notification asynchronous Instead of notifying the event coordinator (EventBox) whenever a new line is arrived, start a background goroutine that periodically does the task. Atomic.StoreInt32 is much cheaper than mutex synchronization that happens during EventBox update.	2017-08-16 03:33:48 +09:00
Junegunn Choi	0d171ba1d8	Remove special nilItem	2017-08-15 01:10:41 +09:00
Junegunn Choi	2069bbc8b5	[vim] Allow Funcref in g:fzf_action https://github.com/junegunn/fzf.vim/issues/185	2017-08-14 16:23:18 +09:00
Jan Edmund Lazo	053d628b53	Add MinGW 64 to install fzf in Windows 64-bit (#1015 )	2017-08-13 23:20:06 +09:00
Junegunn Choi	6bc592e6c9	Update FuzzyMatchV1 to use skip optimization used in V2	2017-08-12 00:28:30 +09:00
Junegunn Choi	6c76d8cd1c	Disallow escaping of meta characters except for spaces https://github.com/junegunn/fzf/issues/444#issuecomment-321719604	2017-08-11 13:09:33 +09:00
Junegunn Choi	a09e411936	Treat \| as proper query when it can't be an OR operator	2017-08-11 00:07:18 +09:00
Junegunn Choi	02a7b96f33	Treat $ as proper search query When $ is the leading character in a query, it's probably not meant to be an anchor.	2017-08-10 23:59:52 +09:00
Junegunn Choi	e55e029ae8	Build cache key for a pattern only once	2017-08-10 23:18:52 +09:00
Junegunn Choi	6b18b144cf	Fix escaping of meta characters after ' or ! prefix https://github.com/junegunn/fzf/issues/444#issuecomment-321432803	2017-08-10 12:40:53 +09:00
Junegunn Choi	6d53089cc1	Allow escaping term starting with \| Close #444	2017-08-09 23:33:37 +09:00
Junegunn Choi	e85a8a68d0	Allow escaping meta characters with backslashes One can escape meta characters in extended-search mode with backslashes. Prefixes: \' \! \^ Suffix: \$ Term separator: \<SPACE> To keep things simple, we are not going to support escaping of escaped sequences (e.g. \\') for matching them literally. Since this is a breaking change, we will bump the minor version. Close #444	2017-08-09 23:28:47 +09:00
Junegunn Choi	dc55e68524	Remove unnecessary SCP (Save Cursor Position) It is reported that it can have an unwanted side effect of clearing the screen on terminal emulators that do not properly support it. Patch suggested by @arya. Close #1011	2017-08-09 01:58:29 +09:00
Junegunn Choi	462c68b625	[vim] Fix issues with other plugins changing working directory Close #1005	2017-08-09 01:54:01 +09:00
Junegunn Choi	999d374f0c	Fix invalid cache lookups	2017-08-08 13:23:33 +09:00
Junegunn Choi	b208aa675e	Update Travis build to run on Trusty	2017-08-05 04:28:43 +09:00
Junegunn Choi	2b98fee136	Fix Travis CI build tcell build is commented out as it doesn't reliably respond to tmux send-keys.	2017-08-05 04:01:17 +09:00
Junegunn Choi	e5e75efebc	[vim] Fix vader test cases	2017-08-04 19:25:06 +09:00
Junegunn Choi	4a4fef2daf	Update performance comparison chart	2017-08-04 09:28:29 +09:00
Junegunn Choi	ecb6b234cc	0.16.11	2017-08-02 02:50:28 +09:00
Junegunn Choi	39dbc8acdb	Exit 2 instead of panic when failed to open /dev/tty	2017-08-02 02:50:26 +09:00
Junegunn Choi	a56489bc7f	Remove non-exclusive access to ChunkList field	2017-08-02 00:09:00 +09:00
Junegunn Choi	99927c7071	Modify loop conditions in checkAscii function	2017-08-01 22:04:42 +09:00
Junegunn Choi	3e28403978	[man] Add note on `--no-` convention Close #1003	2017-08-01 21:34:44 +09:00
Junegunn Choi	37370f057f	Do not use defer in performance-sensitive contexts	2017-08-01 03:44:55 +09:00
Junegunn Choi	f4b46fad27	Inline function calls in a tight loop Manually inline function calls in a tight loop as Go compiler does not inline non-leaf functions. It is observed that this unpleasant code change resulted up to 10% performance improvement.	2017-08-01 03:44:38 +09:00
Junegunn Choi	9d2c6a95f4	Revert "[bash] Do not append space when path completion is cancelled" This reverts commit `376a76d1d3` as it affects normal completion	2017-07-31 14:08:17 +09:00
Junegunn Choi	376a76d1d3	[bash] Do not append space when path completion is cancelled Close #990	2017-07-30 21:51:44 +09:00
Jan Edmund Lazo	1fcc07e54e	[vim] Fix escape of backslash in s:shortpath Close #1000	2017-07-30 20:05:01 +09:00
Junegunn Choi	8db3345c2f	Optimize exact match by applying the same trick for fuzzy match	2017-07-30 18:16:54 +09:00
Junegunn Choi	69aa2fea68	Optimize fuzzy search performance for ASCII strings	2017-07-30 17:31:50 +09:00
Junegunn Choi	298749bfcd	Update README	2017-07-29 17:12:46 +09:00
Junegunn Choi	f1f31baae1	Update README: Missing TOC	2017-07-29 17:10:00 +09:00
Junegunn Choi	e1c8f19e8f	Update README: Advanced topics	2017-07-29 17:09:05 +09:00
Junegunn Choi	5e302c70e9	Update README: rg intead of pt	2017-07-29 17:09:05 +09:00
Junegunn Choi	4c5a679066	Make deselect-all instantaneous	2017-07-28 13:13:03 +09:00
Andrew Halberstadt	41f0b2c354	Add MinGW on Windows to install script (#998 ) Running uname -sm yields: MINGW32_NT-6.2 i686	2017-07-28 12:22:33 +09:00
Junegunn Choi	a0a3c349c9	Update preview window when selection has changed Close #995	2017-07-28 01:39:25 +09:00
Alexey Shamrin	bc3983181d	Update fish comments, because 2.6.0 was released (#991 )	2017-07-25 19:10:34 +09:00
Junegunn Choi	980b58ef5a	Update README Removed outdated animated GIF.	2017-07-23 22:07:24 +09:00
Junegunn Choi	a2604c0963	[nvim] Disable number in fzf buffer https://github.com/junegunn/fzf.vim/issues/396#issuecomment-317214036 One can override the setting on FileType fzf autocmd.	2017-07-23 13:12:15 +09:00
Junegunn Choi	6dbc108da2	0.16.10	2017-07-21 18:41:11 +09:00
Junegunn Choi	bd98f988f0	Further reduce unnecessary rune array conversion I was too quick to release 0.16.9, this commit makes --ansi processing even faster.	2017-07-21 17:31:11 +09:00
Junegunn Choi	06301c7847	Fix regression: ANSI color in preview window not cleared	2017-07-21 16:44:59 +09:00