Add a small delay when search is interrupted

Search is interrupted when the query string has changed. This frequently
happens when the user is actively typing in a query. This (rather
arbitrary) delay is introduced not to start the next search immediately,
which is likely to be interrupted as well. The result of it is that fzf
feels more responsive.

README.md

@@ -65,8 +65,9 @@ usage: fzf [options]
     -e, --extended-exact Extended-search mode (exact match)
     -i                   Case-insensitive match (default: smart-case match)
     +i                   Case-sensitive match
-    -n, --nth=[-]N[,..]  Comma-separated list of field indexes for limiting
-                         search scope (positive or negative integers)
+    -n, --nth=N[,..]     Comma-separated list of field index expressions
+                         for limiting search scope. Each can be a non-zero
+                         integer or a range expression ([BEGIN]..[END])
     -d, --delimiter=STR  Field delimiter regex for --nth (default: AWK-style)
 
   Search result
@@ -123,6 +124,7 @@ The following readline key bindings should also work as expected.
 
 - CTRL-A / CTRL-E
 - CTRL-B / CTRL-F
+- CTRL-H / CTRL-D
 - CTRL-W / CTRL-U / CTRL-Y
 - ALT-B / ALT-F
 
@@ -173,12 +175,6 @@ fd() {
   cd "$dir"
 }
 
-# fda - including hidden directories
-fda() {
-  local dir
-  dir=$(find ${1:-.} -type d 2> /dev/null | fzf +m) && cd "$dir"
-}
-
 # fh - repeat history
 fh() {
   eval $(([ -n "$ZSH_NAME" ] && fc -l 1 || history) | fzf +s | sed 's/ *[0-9]* *//')
@@ -188,33 +184,6 @@ fh() {
 fkill() {
   ps -ef | sed 1d | fzf -m | awk '{print $2}' | xargs kill -${1:-9}
 }
-
-# fbr - checkout git branch
-fbr() {
-  local branches branch
-  branches=$(git branch) &&
-  branch=$(echo "$branches" | fzf +s +m) &&
-  git checkout $(echo "$branch" | sed "s/.* //")
-}
-
-# fco - checkout git commit
-fco() {
-  local commits commit
-  commits=$(git log --pretty=oneline --abbrev-commit --reverse) &&
-  commit=$(echo "$commits" | fzf +s +m -e) &&
-  git checkout $(echo "$commit" | sed "s/ .*//")
-}
-
-# ftags - search ctags
-ftags() {
-  local line
-  [ -e tags ] &&
-  line=$(
-    awk 'BEGIN { FS="\t" } !/^!/ {print toupper($4)"\t"$1"\t"$2"\t"$3}' tags |
-    cut -c1-80 | fzf --nth=1,2
-  ) && $EDITOR $(cut -f3 <<< "$line") -c "set nocst" \
-                                      -c "silent tag $(cut -f2 <<< "$line")"
-}
 ```
 
 For more examples, see [the wiki
@@ -318,7 +287,7 @@ TODO :smiley:
 Usage as Vim plugin
 -------------------
 
-(fzf is a command-line utility, naturally it is only accessible in terminal Vim)
+(Note: To use fzf in GVim, an external terminal emulator is required.)
 
 ### `:FZF[!]`
 
@@ -342,6 +311,17 @@ If you're on a tmux session, `:FZF` will launch fzf in a new split-window whose
 height can be adjusted with `g:fzf_tmux_height` (default: '40%'). However, the
 bang version (`:FZF!`) will always start in fullscreen.
 
+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`.
+
+```vim
+" This is the default. %s is replaced with fzf command
+let g:fzf_launcher = 'xterm -e bash -ic %s'
+
+" Use urxvt instead
+let g:fzf_launcher = 'urxvt -geometry 120x30 -e sh -c %s'
+```
+
 ### `fzf#run([options])`
 
 For more advanced uses, you can call `fzf#run()` function which returns the list
@@ -350,7 +330,7 @@ of the selected items.
 `fzf#run()` may take an options-dictionary:
 
 | Option name     | Type          | Description                                                        |
-| ------------- | ------------- | ------------------------------------------------------------------ |
+| --------------- | ------------- | ------------------------------------------------------------------ |
 | `source`        | string        | External command to generate input to fzf (e.g. `find .`)          |
 | `source`        | list          | Vim list as input to fzf                                           |
 | `sink`          | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)         |
@@ -359,6 +339,7 @@ of the selected items.
 | `dir`           | string        | Working directory                                                  |
 | `tmux_width`    | number/string | Use tmux vertical split with the given height (e.g. `20`, `50%`)   |
 | `tmux_height`   | number/string | Use tmux horizontal split with the given height (e.g. `20`, `50%`) |
+| `launcher`      | string        | External terminal emulator to start fzf with (Only used in GVim)   |
 
 #### Examples
 
@@ -386,7 +367,8 @@ nnoremap <silent> <Leader>C :call fzf#run({
 \         "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')"),
 \   'sink':       'colo',
 \   'options':    '+m',
-\   'tmux_width': 20
+\   'tmux_width': 20,
+\   'launcher':   'xterm -geometry 20x30 -e bash -ic %s'
 \ })<CR>
 ```
 
@@ -395,20 +377,20 @@ handy mapping that selects an open buffer.
 
 ```vim
 " List of buffers
-function! g:buflist()
+function! BufList()
   redir => ls
   silent ls
   redir END
   return split(ls, '\n')
 endfunction
 
-function! g:bufopen(e)
+function! BufOpen(e)
   execute 'buffer '. matchstr(a:e, '^[ 0-9]*')
 endfunction
 
 nnoremap <silent> <Leader><Enter> :call fzf#run({
-\   'source':      reverse(g:buflist()),
-\   'sink':        function('g:bufopen'),
+\   'source':      reverse(BufList()),
+\   'sink':        function('BufOpen'),
 \   'options':     '+m',
 \   'tmux_height': '40%'
 \ })<CR>
@@ -487,6 +469,39 @@ fzf() {
 }
 ```
 
+### Using fzf with tmux splits
+
+It isn't too hard to write your own fzf-tmux combo like the default
+CTRL-T key binding. (Or is it?)
+
+```sh
+# This is a helper function that splits the current pane to start the given
+# command ($1) and sends its output back to the original pane with any number of
+# optional keys (shift; $*).
+fzf_tmux_helper() {
+  [ -n "$TMUX_PANE" ] || return
+  local cmd=$1
+  shift
+  tmux split-window -p 40 \
+    "bash -c \"\$(tmux send-keys -t $TMUX_PANE \"\$(source ~/.fzf.bash; $cmd)\" $*)\""
+}
+
+# This is the function we are going to run in the split pane.
+# - "find" to list the directories
+# - "sed" will escape spaces in the paths.
+# - "paste" will join the selected paths into a single line
+fzf_tmux_dir() {
+  fzf_tmux_helper \
+    'find * -path "*/\.*" -prune -o -type d -print 2> /dev/null |
+     fzf --multi |
+     sed "s/ /\\\\ /g" |
+     paste -sd" " -' Space
+}
+
+# Bind CTRL-X-CTRL-D to fzf_tmux_dir
+bind '"\C-x\C-d": "$(fzf_tmux_dir)\e\C-e"'
+```
+
 ### Fish shell
 
 It's [a known bug of fish](https://github.com/fish-shell/fish-shell/issues/1362)
@@ -516,6 +531,13 @@ fzf works on [Cygwin](http://www.cygwin.com/) and
 [MSYS2](http://sourceforge.net/projects/msys2/). You may need to use `--black`
 option on MSYS2 to avoid rendering issues.
 
+### Handling UTF-8 NFD paths on OSX
+
+Use iconv to convert NFD paths to NFC:
+
+```sh
+find . | iconv -f utf-8-mac -t utf8//ignore | fzf
+```
 
 License
 -------

fzf

@@ -7,7 +7,7 @@
 #  / __/ / /_/ __/
 # /_/   /___/_/    Fuzzy finder for your shell
 #
-# Version: 0.8.4 (May 17, 2014)
+# Version: 0.8.5 (Jun 15, 2014)
 #
 # Author:  Junegunn Choi
 # URL:     https://github.com/junegunn/fzf
@@ -133,10 +133,9 @@ class FZF
       when /^-f(.*)$/, /^--filter=(.*)$/
         @filter = $1
       when '-n', '--nth'
-        usage 1, 'field number required' unless nth = argv.shift
-        usage 1, 'invalid field number' if nth.to_i == 0
+        usage 1, 'field expression required' unless nth = argv.shift
         @nth = parse_nth nth
-      when /^-n([0-9,-]+)$/, /^--nth=([0-9,-]+)$/
+      when /^-n([0-9,-\.]+)$/, /^--nth=([0-9,-\.]+)$/
         @nth = parse_nth $1
       when '-d', '--delimiter'
         usage 1, 'delimiter required' unless delim = argv.shift
@@ -179,10 +178,20 @@ class FZF
   end
 
   def parse_nth nth
-    nth.split(',').map { |n|
-      ni = n.to_i
-      usage 1, "invalid field number: #{n}" if ni == 0
-      ni
+    nth.split(',').map { |expr|
+      x = proc { usage 1, "invalid field expression: #{expr}" }
+      first, second = expr.split('..', 2)
+      x.call if !first.empty? && first.to_i == 0 ||
+        second && !second.empty? && (second.to_i == 0 || second.include?('.'))
+
+      first  = first.empty? ? 1 : first.to_i
+      second = case second
+               when nil then first
+               when ''  then -1
+               else second.to_i
+               end
+
+      Range.new(*[first, second].map { |e| e > 0 ? e - 1 : e })
     }
   end
 
@@ -281,8 +290,9 @@ class FZF
     -e, --extended-exact Extended-search mode (exact match)
     -i                   Case-insensitive match (default: smart-case match)
     +i                   Case-sensitive match
-    -n, --nth=[-]N[,..]  Comma-separated list of field indexes for limiting
-                         search scope (positive or negative integers)
+    -n, --nth=N[,..]     Comma-separated list of field index expressions
+                         for limiting search scope. Each can be a non-zero
+                         integer or a range expression ([BEGIN]..[END])
     -d, --delimiter=STR  Field delimiter regex for --nth (default: AWK-style)
 
   Search result
@@ -309,121 +319,6 @@ class FZF
     exit x
   end
 
-  case RUBY_PLATFORM
-  when /darwin/
-    module UConv
-      CHOSUNG   = 0x1100
-      JUNGSUNG  = 0x1161
-      JONGSUNG  = 0x11A7
-      CHOSUNGS  = 19
-      JUNGSUNGS = 21
-      JONGSUNGS = 28
-      JJCOUNT   = JUNGSUNGS * JONGSUNGS
-      NFC_BEGIN = 0xAC00
-      NFC_END   = NFC_BEGIN + CHOSUNGS * JUNGSUNGS * JONGSUNGS
-
-      def self.nfd str
-        str.split(//).map do |c|
-          cp = c.ord
-          if cp >= NFC_BEGIN && cp < NFC_END
-            chr = ''
-            idx  = cp - NFC_BEGIN
-            cho  = CHOSUNG  + idx / JJCOUNT
-            jung = JUNGSUNG + (idx % JJCOUNT) / JONGSUNGS
-            jong = JONGSUNG + idx % JONGSUNGS
-            chr << cho << jung
-            chr << jong if jong != JONGSUNG
-            chr
-          else
-            c
-          end
-        end
-      end
-
-      def self.to_nfc arr
-        [NFC_BEGIN + arr[0] * JJCOUNT +
-         (arr[1] || 0) * JONGSUNGS +
-         (arr[2] || 0)].pack('U*')
-      end
-
-      if String.method_defined?(:each_char)
-        def self.split str
-          str.each_char.to_a
-        end
-      else
-        def self.split str
-          str.split('')
-        end
-      end
-
-      def self.nfc str, offsets = []
-        ret  = ''
-        omap = []
-        pend = []
-        split(str).each_with_index do |c, idx|
-          cp =
-            begin
-              c.ord
-            rescue Exception
-              next
-            end
-          omap << ret.length
-          unless pend.empty?
-            if cp >= JUNGSUNG && cp < JUNGSUNG + JUNGSUNGS
-              pend << cp - JUNGSUNG
-              next
-            elsif cp >= JONGSUNG && cp < JONGSUNG + JONGSUNGS
-              pend << cp - JONGSUNG
-              next
-            else
-              omap[-1] = omap[-1] + 1
-              ret << to_nfc(pend)
-              pend.clear
-            end
-          end
-          if cp >= CHOSUNG && cp < CHOSUNG + CHOSUNGS
-            pend << cp - CHOSUNG
-          else
-            ret << c
-          end
-        end
-        ret << to_nfc(pend) unless pend.empty?
-        return [ret,
-                offsets.map { |pair|
-                  b, e = pair
-                  [omap[b] || 0, omap[e] || ((omap.last || 0) + 1)] }]
-      end
-    end
-
-    def convert_item item
-      UConv.nfc(*item)
-    end
-
-    class Matcher
-      def query_chars q
-        UConv.nfd(q)
-      end
-
-      def sanitize q
-        UConv.nfd(q).join
-      end
-    end
-  else
-    def convert_item item
-      item
-    end
-
-    class Matcher
-      def query_chars q
-        q.split(//)
-      end
-
-      def sanitize q
-        q
-      end
-    end
-  end
-
   def emit event
     @mtx.synchronize do
       @events[event] = yield
@@ -558,7 +453,7 @@ class FZF
       width = width str
       diff  = 0
       while width > len
-        width -= (left ? str[0, 1] : str[-1, 1]) =~ @@wrx ? 2 : 1
+        width -= ((left ? str[0, 1] : str[-1, 1]) =~ @@wrx ? 2 : 1) rescue 1
         str    = left ? str[1..-1] : str[0...-1]
         diff  += 1
       end
@@ -734,7 +629,10 @@ class FZF
                 found.concat(q.empty? ? list :
                              matcher.match(list, q, q[0, cx], q[cx..-1]))
               end
-              next if skip
+              if skip
+                sleep 0.1
+                next
+              end
               matches = @sort ? found : found.reverse
               if !empty && @sort && matches.length <= @sort
                 matches = FZF.sort(matches)
@@ -792,7 +690,7 @@ class FZF
         row           = cursor_y(idx + 2)
         chosen        = idx == vcursor
         selected      = @selects.include?([*item][0])
-        line, offsets = convert_item item
+        line, offsets = item
         tokens        = format line, maxc, offsets
         print_item row, tokens, chosen, selected
       end
@@ -911,7 +809,7 @@ class FZF
 
       ord =
         case read_nb(1, :esc)
-        when 91
+        when 91, 79
           case read_nb(1, nil)
           when 68 then ctrl(:b)
           when 67 then ctrl(:f)
@@ -996,7 +894,13 @@ class FZF
       }
       actions = {
         :esc     => proc { exit 1 },
-        ctrl(:d) => proc { exit 1 if input.empty? },
+        ctrl(:d) => proc {
+          if input.empty?
+            exit 1
+          elsif cursor < input.length
+            input = input[0...cursor] + input[(cursor + 1)..-1]
+          end
+        },
         ctrl(:m) => proc {
           got = pick
           exit 0
@@ -1053,6 +957,7 @@ class FZF
             case event
             when :click, :release
               x, y, shift = val.values_at :x, :y, :shift
+              y = @reverse ? (C.lines - 1 - y) : y
               if y == cursor_y
                 cursor = [0, [input.length, x - 2].min].max
               elsif x > 1 && y <= max_items
@@ -1120,7 +1025,7 @@ class FZF
     end
 
     def initialize nth, delim
-      @nth = nth && nth.map { |n| n > 0 ? n - 1 : n }
+      @nth = nth
       @delim = delim
       @tokens_cache = {}
     end
@@ -1142,8 +1047,9 @@ class FZF
         prefix_length, tokens = tokenize str
 
         @nth.each do |n|
-          if (token = tokens[n]) && (md = token.match(pat) rescue nil)
-            prefix_length += (tokens[0...n] || []).join.length
+          if (range = tokens[n]) && (token = range.join) &&
+                (md = token.sub(/\s+$/, '').match(pat) rescue nil)
+            prefix_length += (tokens[0...(n.begin)] || []).join.length
             offset = md.offset(0).map { |o| o + prefix_length }
             return MatchData.new(offset)
           end
@@ -1176,7 +1082,7 @@ class FZF
     def fuzzy_regex q
       @regexp[q] ||= begin
         q = q.downcase if @rxflag == Regexp::IGNORECASE
-        Regexp.new(query_chars(q).inject('') { |sum, e|
+        Regexp.new(q.split(//).inject('') { |sum, e|
           e = Regexp.escape e
           sum << (e.length > 1 ? "(?:#{e}).*?" :  # FIXME: not equivalent
                                  "#{e}[^#{e}]*?")
@@ -1234,7 +1140,7 @@ class FZF
             when ''
               nil
             when /^\^(.*)\$$/
-              Regexp.new('^' << sanitize(Regexp.escape($1)) << '$', rxflag_for(w))
+              Regexp.new('^' << Regexp.escape($1) << '$', rxflag_for(w))
             when /^'/
               if @mode == :fuzzy && w.length > 1
                 exact_regex w[1..-1]
@@ -1243,10 +1149,10 @@ class FZF
               end
             when /^\^/
               w.length > 1 ?
-                Regexp.new('^' << sanitize(Regexp.escape(w[1..-1])), rxflag_for(w)) : nil
+                Regexp.new('^' << Regexp.escape(w[1..-1]), rxflag_for(w)) : nil
             when /\$$/
               w.length > 1 ?
-                Regexp.new(sanitize(Regexp.escape(w[0..-2])) << '$', rxflag_for(w)) : nil
+                Regexp.new(Regexp.escape(w[0..-2]) << '$', rxflag_for(w)) : nil
             else
               @mode == :fuzzy ? fuzzy_regex(w) : exact_regex(w)
             end, invert ]
@@ -1254,7 +1160,7 @@ class FZF
     end
 
     def exact_regex w
-      Regexp.new(sanitize(Regexp.escape(w)), rxflag_for(w))
+      Regexp.new(Regexp.escape(w), rxflag_for(w))
     end
 
     def match list, q, prefix, suffix

install

@@ -140,7 +140,7 @@ if [ -z "$(set -o | grep '^vi.*on')" ]; then
   fi
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": " \C-e\C-u$(HISTTIMEFORMAT= history | fzf +s | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
+  bind '"\C-r": " \C-e\C-u$(HISTTIMEFORMAT= history | fzf +s +m -n..,1,2.. | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
 
   # ALT-C - cd into the selected directory
   bind '"\ec": " \C-e\C-u$(__fcd)\e\C-e\er\C-m"'
@@ -157,7 +157,7 @@ else
   fi
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\eddi$(HISTTIMEFORMAT= history | fzf +s | sed \"s/ *[0-9]* *//\")\C-x\C-e\e$a\C-x\C-r"'
+  bind '"\C-r": "\eddi$(HISTTIMEFORMAT= history | fzf +s +m -n..,1,2.. | sed \"s/ *[0-9]* *//\")\C-x\C-e\e$a\C-x\C-r"'
 
   # ALT-C - cd into the selected directory
   bind '"\ec": "\eddi$(__fcd)\C-x\C-e\C-x\C-r\C-m"'
@@ -198,7 +198,7 @@ if [ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ]; then
   }
 else
   fzf-file-widget() {
-    LBUFFER="${LBUFFER%% #}$(__fsel)"
+    LBUFFER="${LBUFFER}$(__fsel)"
     zle redisplay
   }
 fi
@@ -216,7 +216,7 @@ bindkey '\ec' fzf-cd-widget
 
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
-  LBUFFER=$(fc -l 1 | fzf +s | sed "s/ *[0-9]* *//")
+  LBUFFER=$(fc -l 1 | fzf +s +m -n..,1,2.. | sed "s/ *[0-9*]* *//")
   zle redisplay
 }
 zle     -N   fzf-history-widget
@@ -241,7 +241,7 @@ function fzf
   $fzf_cmd \$argv
 end
 EOFZF
-  echo "ok"
+  echo "OK"
 
   if [ $key_bindings -eq 0 ]; then
     echo -n "Generate ~/.config/fish/functions/fzf_key_bindings.fish ... "
@@ -310,7 +310,7 @@ function fzf_key_bindings
   bind \ec '__fzf_alt_c'
 end
 EOFZF
-    echo "ok"
+    echo "OK"
   fi
 fi
 
@@ -345,7 +345,7 @@ Finished. Restart your shell or reload config file.
 EOF
 [ $has_fish -eq 1 ] && echo "   fzf_key_bindings  # fish"; cat << EOF
 
-To uninstall fzf, simply remove the added lines.
+Use uninstall script to remove fzf.
 
 For more information, see: https://github.com/junegunn/fzf
 EOF

plugin/fzf.vim

@@ -24,6 +24,7 @@
 let s:min_tmux_width  = 10
 let s:min_tmux_height = 3
 let s:default_tmux_height = '40%'
+let s:launcher = 'xterm -e bash -ic %s'
 
 let s:cpo_save = &cpo
 set cpo&vim
@@ -42,6 +43,10 @@ else
 endif
 
 function! s:tmux_enabled()
+  if has('gui_running')
+    return 0
+  endif
+
   if exists('s:tmux')
     return s:tmux
   endif
@@ -63,11 +68,6 @@ function! s:escape(path)
 endfunction
 
 function! fzf#run(...) abort
-  if has('gui_running')
-    echohl Error
-    echo 'GVim is not supported'
-    return []
-  endif
   let dict   = exists('a:1') ? a:1 : {}
   let temps  = { 'result': tempname() }
   let optstr = get(dict, 'options', '')
@@ -118,9 +118,17 @@ endfunction
 function! s:execute(dict, command, temps)
   call s:pushd(a:dict)
   silent !clear
-  execute 'silent !'.a:command
+  if has('gui_running')
+    let launcher = get(a:dict, 'launcher', get(g:, 'fzf_launcher', s:launcher))
+    let command = printf(launcher, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
+  else
+    let command = a:command
+  endif
+  execute 'silent !'.command
   redraw!
   if v:shell_error
+    echohl Error
+    echo 'Error running ' . command
     return []
   else
     return s:callback(a:dict, a:temps, 0)

test/test_fzf.rb

@@ -60,7 +60,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal true,    fzf.select1
     assert_equal true,    fzf.exit0
     assert_equal true,    fzf.reverse
-    assert_equal [3, -1, 2], fzf.nth
+    assert_equal [2..2, -1..-1, 1..1], fzf.nth
   end
 
   def test_option_parser
@@ -80,7 +80,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal true,    fzf.exit0
     assert_equal 'howdy', fzf.filter
     assert_equal :exact,  fzf.extended
-    assert_equal [1],     fzf.nth
+    assert_equal [0..0],  fzf.nth
     assert_equal true,    fzf.reverse
 
     # Long opts (left-to-right)
@@ -101,7 +101,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal false,   fzf.select1
     assert_equal false,   fzf.exit0
     assert_equal nil,     fzf.extended
-    assert_equal [-2],    fzf.nth
+    assert_equal [-2..-2], fzf.nth
     assert_equal false,   fzf.reverse
 
     # Short opts
@@ -114,7 +114,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal 'hello', fzf.query.get
     assert_equal 'howdy', fzf.filter
     assert_equal :fuzzy,  fzf.extended
-    assert_equal [3],     fzf.nth
+    assert_equal [2..2],  fzf.nth
     assert_equal true,    fzf.select1
     assert_equal true,    fzf.exit0
 
@@ -134,23 +134,28 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal false,   fzf.exit0
     assert_equal 'world', fzf.filter
     assert_equal nil,     fzf.extended
-    assert_equal [4, 5],  fzf.nth
+    assert_equal [3..3, 4..4], fzf.nth
   rescue SystemExit => e
     assert false, "Exited"
   end
 
   def test_invalid_option
-    [%w[--unknown], %w[yo dawg]].each do |argv|
+    [
+      %w[--unknown],
+      %w[yo dawg],
+      %w[--nth=0],
+      %w[-n 0],
+      %w[-n 1..2..3],
+      %w[-n 1....],
+      %w[-n ....3],
+      %w[-n 1....3],
+      %w[-n 1..0],
+      %w[--nth ..0],
+    ].each do |argv|
       assert_raises(SystemExit) do
         fzf = FZF.new argv
       end
     end
-    assert_raises(SystemExit) do
-      fzf = FZF.new %w[--nth=0]
-    end
-    assert_raises(SystemExit) do
-      fzf = FZF.new %w[-n 0]
-    end
   end
 
   # FIXME Only on 1.9 or above
@@ -450,58 +455,11 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal 2, exact.match(list, "-fuzzy", '', '').length
   end
 
-  if RUBY_PLATFORM =~ /darwin/
-    NFD = '한글'
-    def test_nfc
-      assert_equal 6, NFD.length
-      assert_equal ["한글", [[0, 1], [1, 2]]],
-        FZF::UConv.nfc(NFD, [[0, 3], [3, 6]])
-
-      nfd2 = 'before' + NFD + 'after'
-      assert_equal 6 + 6 + 5, nfd2.length
-
-      nfc, offsets = FZF::UConv.nfc(nfd2, [[4, 14], [9, 13]])
-      o1, o2 = offsets
-      assert_equal 'before한글after', nfc
-      assert_equal 're한글af',        nfc[(o1.first...o1.last)]
-      assert_equal '글a',             nfc[(o2.first...o2.last)]
-    end
-
-    def test_nfd
-      nfc = '한글'
-      nfd = FZF::UConv.nfd(nfc)
-      assert_equal 2, nfd.length
-      assert_equal 6, nfd.join.length
-      assert_equal NFD, nfd.join
-    end
-
-    def test_nfd_fuzzy_matcher
-      matcher = FZF::FuzzyMatcher.new 0
-      assert_equal [], matcher.match([NFD + NFD], '할', '', '')
-      match   = matcher.match([NFD + NFD], '글글', '', '')
-      assert_equal [[NFD + NFD, [[3, 12]]]], match
-      assert_equal ['한글한글', [[1, 4]]], FZF::UConv.nfc(*match.first)
-    end
-
-    def test_nfd_extended_fuzzy_matcher
-      matcher = FZF::ExtendedFuzzyMatcher.new 0
-      assert_equal [], matcher.match([NFD], "'글글", '', '')
-      match   = matcher.match([NFD], "'한글", '', '')
-      assert_equal [[NFD, [[0, 6]]]], match
-      assert_equal ['한글', [[0, 2]]], FZF::UConv.nfc(*match.first)
-    end
-  end
-
-  def test_split
-    assert_equal ["a", "b", "c", "\xFF", "d", "e", "f"],
-      FZF::UConv.split("abc\xFFdef")
-  end
-
   # ^$ -> matches empty item
   def test_format_empty_item
     fzf = FZF.new []
     item = ['', [[0, 0]]]
-    line, offsets = fzf.convert_item item
+    line, offsets = item
     tokens        = fzf.format line, 80, offsets
     assert_equal [], tokens
   end
@@ -534,43 +492,67 @@ class TestFZF < MiniTest::Unit::TestCase
       [list[0], [[2,  5]]],
       [list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
 
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2]
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1]
     assert_equal [[list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
     assert_equal [[list[0], [[8, 9]]]], matcher.match(list, 's', '', '')
 
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [3]
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2]
     assert_equal [[list[0], [[19, 20]]]], matcher.match(list, 'r', '', '')
 
     # Comma-separated
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [3, 1]
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2..2, 0..0]
     assert_equal [[list[0], [[19, 20]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
 
     # Ordered
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1, 3]
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0, 2..2]
     assert_equal [[list[0], [[3, 4]]], [list[1], [[3, 4]]]], matcher.match(list, 'r', '', '')
 
     regex = FZF.build_delim_regex "\t"
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1], regex
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
     assert_equal [[list[0], [[3, 10]]]], matcher.match(list, 're', '', '')
 
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2], regex
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
     assert_equal [], matcher.match(list, 'r', '', '')
     assert_equal [[list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
 
     # Negative indexing
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [-1], regex
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [-1..-1], regex
     assert_equal [[list[0], [[3, 6]]]], matcher.match(list, 'rt', '', '')
     assert_equal [[list[0], [[2, 5]]], [list[1], [[9, 17]]]], matcher.match(list, 'is', '', '')
 
     # Regex delimiter
     regex = FZF.build_delim_regex "[ \t]+"
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1], regex
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [0..0], regex
     assert_equal [list[1]], matcher.match(list, 'f', '', '').map(&:first)
 
-    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [2], regex
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..1], regex
     assert_equal [[list[0], [[1, 2]]], [list[1], [[8, 9]]]], matcher.match(list, 'f', '', '')
   end
 
+  def test_nth_match_range
+    list = [
+      ' first  second  third',
+      'fourth	 fifth   sixth',
+    ]
+
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..2]
+    assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
+    assert_equal [], matcher.match(list, 'fo', '', '')
+
+    matcher = FZF::FuzzyMatcher.new Regexp::IGNORECASE, [1..-1, 0..0]
+    assert_equal [[list[0], [[8, 20]]]], matcher.match(list, 'sr', '', '')
+    assert_equal [[list[1], [[0, 2]]]], matcher.match(list, 'fo', '', '')
+
+    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..0, 1..2]
+    assert_equal [], matcher.match(list, '^t', '', '')
+
+    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [0..1, 2..2]
+    assert_equal [[list[0], [[16, 17]]]], matcher.match(list, '^t', '', '')
+
+    matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE, :fuzzy, [1..-1]
+    assert_equal [[list[0], [[8, 9]]]], matcher.match(list, '^s', '', '')
+  end
+
   def stream_for str
     StringIO.new(str).tap do |sio|
       sio.instance_eval do

uninstall

@@ -0,0 +1,70 @@
+#!/bin/bash
+
+confirm() {
+  while [ 1 ]; do
+    read -p "$1" -n 1 -r
+    echo
+    if [[ "$REPLY" =~ ^[Yy] ]]; then
+      return 0
+    elif [[ "$REPLY" =~ ^[Nn] ]]; then
+      return 1
+    fi
+  done
+}
+
+remove() {
+  echo "Remove $1"
+  rm -f "$1"
+}
+
+remove_line() {
+  src=$(readlink "$2")
+  if [ $? -eq 0 ]; then
+    echo "Remove from $2 ($src):"
+  else
+    src=$2
+    echo "Remove from $2:"
+  fi
+
+  line_no=1
+  match=0
+  while [ 1 ]; do
+    line=$(sed -n "$line_no,\$p" "$src" | grep -m1 -nF "$1") || break
+    line_no=$(( $(sed 's/:.*//' <<< "$line") + line_no - 1 ))
+    content=$(sed 's/^[0-9]*://' <<< "$line")
+    match=1
+    echo    "  - Line #$line_no: $content"
+    [ "$content" = "$1" ] || confirm "    - Remove (y/n) ? "
+    if [ $? -eq 0 ]; then
+      awk -v n=$line_no 'NR == n {next} {print}' "$src" > "$src.bak" &&
+        mv "$src.bak" "$src" || break
+      echo  "      - Removed"
+    else
+      echo  "      - Skipped"
+      line_no=$(( line_no + 1 ))
+    fi
+  done
+  [ $match -eq 0 ] && echo "  - Nothing found"
+  echo
+}
+
+for shell in bash zsh; do
+  remove ~/.fzf.${shell}
+  remove_line "source ~/.fzf.${shell}" ~/.${shell}rc
+done
+
+bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
+if [ -f "$bind_file" ]; then
+  remove_line "fzf_key_bindings" "$bind_file"
+fi
+
+if [ -d ~/.config/fish/functions ]; then
+  remove ~/.config/fish/functions/fzf.fish
+
+  if [ "$(ls -A ~/.config/fish/functions)" ]; then
+    echo "Can't delete non-empty directory: \"~/.config/fish/functions\""
+  else
+    rmdir ~/.config/fish/functions
+  fi
+fi
+