Update gem version (0.6.0)

- Smart-case pattern matching
- CTRL-Q

README.md

@@ -16,8 +16,6 @@ fzf requires Ruby (>= 1.8.5).
 Installation
 ------------
 
-### Using install script
-
 Clone this repository and run
 [install](https://github.com/junegunn/fzf/blob/master/install) script.
 
@@ -29,29 +27,10 @@ git clone https://github.com/junegunn/fzf.git ~/.fzf
 The script will generate `~/.fzf.bash` and `~/.fzf.zsh` and update your
 `.bashrc` and `.zshrc` to load them.
 
-### Manual installation
-
 Or you can just download
 [fzf executable](https://raw.github.com/junegunn/fzf/master/fzf) and put it
 somewhere in your search $PATH.
 
-```sh
-mkdir -p ~/bin
-wget https://raw.github.com/junegunn/fzf/master/fzf -O ~/bin/fzf
-chmod +x ~/bin/fzf
-```
-
-### Install as Ruby gem
-
-fzf can be installed as a Ruby gem
-
-```
-gem install fzf
-```
-
-It's a bit easier to install and update the script but the Ruby gem version
-takes slightly longer to start.
-
 ### Install as Vim plugin
 
 You can use any Vim plugin manager to install fzf for Vim. If you don't use one,
@@ -78,6 +57,7 @@ usage: fzf [options]
     -q, --query=STR  Initial query
     -s, --sort=MAX   Maximum number of matched items to sort. Default: 1000
     +s, --no-sort    Do not sort the result. Keep the sequence unchanged.
+    -i               Case-insensitive match (default: smart-case match)
     +i               Case-sensitive match
     +c, --no-color   Disable colors
 ```
@@ -173,8 +153,8 @@ Most of the time, you will prefer native Vim plugins with better integration
 with Vim. The only reason one might consider using fzf in Vim is its speed. For
 a very large list of files, fzf is significantly faster and it does not block.
 
-Useful bash examples
+Useful examples
---------------------
+---------------
 
 ```sh
 # vimf - Open selected file in Vim
@@ -189,7 +169,7 @@ fd() {
 
 # fda - including hidden directories
 fda() {
-  DIR=$(find ${1:-*} -type d 2> /dev/null | fzf) && cd "$DIR"
+  DIR=$(find ${1:-.} -type d 2> /dev/null | fzf) && cd "$DIR"
 }
 
 # fh - repeat history
@@ -203,8 +183,16 @@ fkill() {
 }
 ```
 
-bash key bindings
+Key bindings for command line
------------------
+-----------------------------
+
+The install script will add the following key bindings to your configuration
+files.
+
+### bash
+
+- `CTRL-T` - Paste the selected file path(s) into the command line
+- `CTRL-R` - Paste the selected command from history into the command line
 
 ```sh
 # Required to refresh the prompt after fzf
@@ -212,7 +200,9 @@ bind '"\er": redraw-current-line'
 
 # CTRL-T - Paste the selected file path into the command line
 fsel() {
-  find ${1:-*} | fzf -m | while read item; do
+  find * -path '*/\.*' -prune \
+    -o -type f -print \
+    -o -type l -print 2> /dev/null | fzf -m | while read item; do
     printf '%q ' "$item"
   done
   echo
@@ -223,8 +213,11 @@ bind '"\C-t": " \C-u \C-a\C-k$(fsel)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er"'
 bind '"\C-r": " \C-e\C-u$(history | fzf +s | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
 ```
 
-zsh widgets
+### zsh
------------
+
+- `CTRL-T` - Paste the selected file path(s) into the command line
+- `CTRL-R` - Paste the selected command from history into the command line
+- `ALT-C` - cd into the selected directory
 
 ```sh
 # CTRL-T - Paste the selected file path(s) into the command line
@@ -262,8 +255,8 @@ zle     -N   fzf-history-widget
 bindkey '^R' fzf-history-widget
 ```
 
-Auto-completion (experimental)
+Auto-completion
-------------------------------
+---------------
 
 Disclaimer: *Auto-completion feature is currently experimental, it can change
 over time*
@@ -367,6 +360,20 @@ when it's running on Ruby 1.8. If you experience the problem, upgrade your Ruby
 to 1.9 or above. Ruby 1.9 or above is also required for displaying Unicode
 characters.
 
+### Ranking algorithm
+
+fzf sorts the result first by the length of the matched substring, then by the
+length of the whole string. However it only does so when the number of matches
+is less than the limit which is by default 1000, in order to avoid the cost of
+sorting a large list and limit the response time of the query.
+
+This limit can be adjusted with `-s` option, or with the environment variable
+`FZF_DEFAULT_SORT`.
+
+```sh
+export FZF_DEFAULT_SORT=10000
+```
+
 License
 -------
 

fzf

@@ -10,7 +10,7 @@
 # URL:         https://github.com/junegunn/fzf
 # Author:      Junegunn Choi
 # License:     MIT
-# Last update: December 5, 2013
+# Last update: December 20, 2013
 #
 # Copyright (c) 2013 Junegunn Choi
 #
@@ -67,7 +67,7 @@ class FZF
   end
 
   def initialize argv, source = $stdin
-    @rxflag = Regexp::IGNORECASE
+    @rxflag = nil
     @sort   = ENV.fetch('FZF_DEFAULT_SORT', 1000).to_i
     @color  = true
     @multi  = false
@@ -79,6 +79,7 @@ class FZF
       when '-h', '--help'     then usage 0
       when '-m', '--multi'    then @multi  = true
       when '-x', '--extended' then @xmode  = true
+      when '-i'               then @rxflag = Regexp::IGNORECASE
       when '+i'               then @rxflag = 0
       when '+s', '--no-sort'  then @sort   = nil
       when '+c', '--no-color' then @color  = false
@@ -136,6 +137,7 @@ class FZF
     -q, --query=STR  Initial query
     -s, --sort=MAX   Maximum number of matched items to sort. Default: 1000
     +s, --no-sort    Do not sort the result. Keep the sequence unchanged.
+    -i               Case-insensitive match (default: smart-case match)
     +i               Case-sensitive match
     +c, --no-color   Disable colors]
     exit x
@@ -347,7 +349,7 @@ class FZF
       tokens << [line[b...e], true]
       index = e
     end
-    tokens << [line[index..-1], false]
+    tokens << [line[index..-1], false] if index < line.length
     tokens.reject { |pair| pair.first.empty? }
   end
 
@@ -706,7 +708,7 @@ class FZF
       actions[ctrl(:h)] = actions[127]
       actions[ctrl(:n)] = actions[ctrl(:j)]
       actions[ctrl(:p)] = actions[ctrl(:k)]
-      actions[ctrl(:g)] = actions[ctrl(:c)] = actions[:esc]
+      actions[ctrl(:q)] = actions[ctrl(:g)] = actions[ctrl(:c)] = actions[:esc]
       actions[:stab]    = actions[9]
 
       emit(:key) { [@query.get, cursor] } unless @query.empty?
@@ -770,14 +772,18 @@ class FZF
       q.empty?
     end
 
+    def rxflag_for q
+      @rxflag || (q =~ /[A-Z]/ ? 0 : Regexp::IGNORECASE)
+    end
+
     def fuzzy_regex q
       @regexp[q] ||= begin
-        q = q.downcase if @rxflag != 0
+        q = q.downcase if @rxflag == Regexp::IGNORECASE
         Regexp.new(query_chars(q).inject('') { |sum, e|
           e = Regexp.escape e
           sum << (e.length > 1 ? "(?:#{e}).*?" :  # FIXME: not equivalent
                                  "#{e}[^#{e}]*?")
-        }, @rxflag)
+        }, rxflag_for(q))
       end
     end
 
@@ -829,15 +835,17 @@ class FZF
             case w
             when ''
               nil
+            when /^\^(.*)\$$/
+              Regexp.new('^' << sanitize(Regexp.escape($1)) << '$', rxflag_for(w))
             when /^'/
               w.length > 1 ?
-                Regexp.new(sanitize(Regexp.escape(w[1..-1])), rxflag) : nil
+                Regexp.new(sanitize(Regexp.escape(w[1..-1])), rxflag_for(w)) : nil
             when /^\^/
               w.length > 1 ?
-                Regexp.new('^' << sanitize(Regexp.escape(w[1..-1])), rxflag) : nil
+                Regexp.new('^' << sanitize(Regexp.escape(w[1..-1])), rxflag_for(w)) : nil
             when /\$$/
               w.length > 1 ?
-                Regexp.new(sanitize(Regexp.escape(w[0..-2])) << '$', rxflag) : nil
+                Regexp.new(sanitize(Regexp.escape(w[0..-2])) << '$', rxflag_for(w)) : nil
             else
               fuzzy_regex w
             end, invert ]

fzf-completion.bash

@@ -100,7 +100,7 @@ _fzf_host_completion() {
   local cur prev selected
   cur="${COMP_WORDS[COMP_CWORD]}"
   prev="${COMP_WORDS[COMP_CWORD-1]}"
-  [ "$cur" = '-l' -o "$prev" = '-l' ] && return 1
+  [[ "$cur" =~ ^- || "$prev" =~ ^- ]] && return 1
 
   tput sc
   selected=$(grep -v '^\s*\(#\|$\)' /etc/hosts | awk '{print $2}' | sort -u | fzf $FZF_COMPLETION_OPTS -q "$cur")

fzf.gemspec

@@ -1,7 +1,7 @@
 # coding: utf-8
 Gem::Specification.new do |spec|
   spec.name          = 'fzf'
-  spec.version       = '0.5.1'
+  spec.version       = '0.6.0'
   spec.authors       = ['Junegunn Choi']
   spec.email         = ['junegunn.c@gmail.com']
   spec.description   = %q{Fuzzy finder for your shell}

install

@@ -38,6 +38,12 @@ echo
 [[ ! $REPLY =~ ^[Nn]$ ]]
 auto_completion=$?
 
+# Key-bindings
+read -p "Do you want to add key bindings? ([y]/n) " -n 1 -r
+echo
+[[ ! $REPLY =~ ^[Nn]$ ]]
+key_bindings=$?
+
 echo
 for shell in bash zsh; do
   echo -n "Generate ~/.fzf.$shell ... "
@@ -49,14 +55,85 @@ for shell in bash zsh; do
   fi
 
   cat > $src << EOF
+# Setup fzf function
+# ------------------
 unalias fzf 2> /dev/null
 fzf() {
   $fzf_cmd "\$@"
 }
 export -f fzf > /dev/null
+
+# Auto-completion
+# ---------------
 $fzf_completion
 
 EOF
+
+  if [ $key_bindings -eq 0 ]; then
+    if [ $shell = bash ]; then
+      cat >> $src << "EOF"
+# Key bindings
+# ------------
+# Required to refresh the prompt after fzf
+bind '"\er": redraw-current-line'
+
+# CTRL-T - Paste the selected file path into the command line
+fsel() {
+  find * -path '*/\.*' -prune \
+    -o -type f -print \
+    -o -type l -print 2> /dev/null | fzf -m | while read item; do
+    printf '%q ' "$item"
+  done
+  echo
+}
+bind '"\C-t": " \C-u \C-a\C-k$(fsel)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er"'
+
+# CTRL-R - Paste the selected command from history into the command line
+bind '"\C-r": " \C-e\C-u$(history | fzf +s | sed \"s/ *[0-9]* *//\")\e\C-e\er"'
+
+EOF
+    else
+      cat >> $src << "EOF"
+# Key bindings
+# ------------
+# CTRL-T - Paste the selected file path(s) into the command line
+fzf-file-widget() {
+  local FILES
+  local IFS="
+"
+  FILES=($(
+    find * -path '*/\.*' -prune \
+    -o -type f -print \
+    -o -type l -print 2> /dev/null | fzf -m))
+  unset IFS
+  FILES=$FILES:q
+  LBUFFER="${LBUFFER%% #} $FILES"
+  zle redisplay
+}
+zle     -N   fzf-file-widget
+bindkey '^T' fzf-file-widget
+
+# ALT-C - cd into the selected directory
+fzf-cd-widget() {
+  cd "${$(find * -path '*/\.*' -prune \
+          -o -type d -print 2> /dev/null | fzf):-.}"
+  zle reset-prompt
+}
+zle     -N    fzf-cd-widget
+bindkey '\ec' fzf-cd-widget
+
+# CTRL-R - Paste the selected command from history into the command line
+fzf-history-widget() {
+  LBUFFER=$(history | fzf +s | sed "s/ *[0-9]* *//")
+  zle redisplay
+}
+zle     -N   fzf-history-widget
+bindkey '^R' fzf-history-widget
+
+EOF
+    fi
+  fi
+
   echo "OK"
 done
 

test/test_fzf.rb

@@ -12,7 +12,7 @@ class TestFZF < MiniTest::Unit::TestCase
     assert_equal 1000,  fzf.sort
     assert_equal false, fzf.multi
     assert_equal true,  fzf.color
-    assert_equal Regexp::IGNORECASE, fzf.rxflag
+    assert_equal nil,   fzf.rxflag
 
     begin
       ENV['FZF_DEFAULT_SORT'] = '1500'
@@ -152,15 +152,59 @@ class TestFZF < MiniTest::Unit::TestCase
     # TODO : partial_cache
   end
 
+  def test_fuzzy_matcher_rxflag
+    assert_equal nil, FZF::FuzzyMatcher.new(nil).rxflag
+    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag
+    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag
+
+    assert_equal 1, FZF::FuzzyMatcher.new(nil).rxflag_for('abc')
+    assert_equal 0, FZF::FuzzyMatcher.new(nil).rxflag_for('Abc')
+    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('abc')
+    assert_equal 0, FZF::FuzzyMatcher.new(0).rxflag_for('Abc')
+    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('abc')
+    assert_equal 1, FZF::FuzzyMatcher.new(1).rxflag_for('Abc')
+  end
+
   def test_fuzzy_matcher_case_sensitive
+    # Smart-case match (Uppercase found)
+    assert_equal [['Fruit', [[0, 5]]]],
+      FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
+
+    # Smart-case match (Uppercase not-found)
+    assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
+      FZF::FuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], 'fruit', '', '').sort
+
+    # Case-sensitive match (-i)
     assert_equal [['Fruit', [[0, 5]]]],
       FZF::FuzzyMatcher.new(0).match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
 
+    # Case-insensitive match (+i)
     assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
       FZF::FuzzyMatcher.new(Regexp::IGNORECASE).
       match(%w[Fruit Grapefruit], 'Fruit', '', '').sort
   end
 
+  def test_extended_fuzzy_matcher_case_sensitive
+    %w['Fruit Fruit$].each do |q|
+      # Smart-case match (Uppercase found)
+      assert_equal [['Fruit', [[0, 5]]]],
+        FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q, '', '').sort
+
+      # Smart-case match (Uppercase not-found)
+      assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
+        FZF::ExtendedFuzzyMatcher.new(nil).match(%w[Fruit Grapefruit], q.downcase, '', '').sort
+
+      # Case-sensitive match (-i)
+      assert_equal [['Fruit', [[0, 5]]]],
+        FZF::ExtendedFuzzyMatcher.new(0).match(%w[Fruit Grapefruit], q, '', '').sort
+
+      # Case-insensitive match (+i)
+      assert_equal [["Fruit", [[0, 5]]], ["Grapefruit", [[5, 10]]]],
+        FZF::ExtendedFuzzyMatcher.new(Regexp::IGNORECASE).
+        match(%w[Fruit Grapefruit], q, '', '').sort
+    end
+  end
+
   def test_extended_fuzzy_matcher
     matcher = FZF::ExtendedFuzzyMatcher.new Regexp::IGNORECASE
     list = %w[
@@ -197,6 +241,11 @@ class TestFZF < MiniTest::Unit::TestCase
       assert_equal list.length,     match.call('j', '').length
       assert_equal list.length - 1, match.call('^j', '').length
 
+      # ^ + $
+      assert_equal 0, match.call('^juici$', '').length
+      assert_equal 1, match.call('^juice$', '').length
+      assert_equal 0, match.call('^.*$', '').length
+
       # !
       assert_equal 0, match.call('!j', '').length
 
@@ -332,5 +381,14 @@ class TestFZF < MiniTest::Unit::TestCase
     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
+    tokens        = fzf.format line, 80, offsets
+    assert_equal [], tokens
+  end
 end