remove command-t

10 years ago · 8b654d1d8b
--- a/doc/command-t.txt
+++ b/doc/command-t.txt
@ -1,736 +0,0 @@
 *command-t.txt* Command-T plug-in for Vim         *command-t*

 CONTENTS                                        *command-t-contents*

 1. Introduction            |command-t-intro|
 2. Requirements            |command-t-requirements|
 3. Installation            |command-t-installation|
 3. Managing using Pathogen |command-t-pathogen|
 4. Trouble-shooting        |command-t-trouble-shooting|
 5. Usage                   |command-t-usage|
 6. Commands                |command-t-commands|
 7. Mappings                |command-t-mappings|
 8. Options                 |command-t-options|
 9. Authors                 |command-t-authors|
 10. Website                 |command-t-website|
 11. Donations               |command-t-donations|
 12. License                 |command-t-license|
 13. History                 |command-t-history|


 INTRODUCTION                                    *command-t-intro*

 The Command-T plug-in provides an extremely fast, intuitive mechanism for
 opening files with a minimal number of keystrokes. It's named "Command-T"
 because it is inspired by the "Go to File" window bound to Command-T in
 TextMate.

 Files are selected by typing characters that appear in their paths, and are
 ordered by an algorithm which knows that characters that appear in certain
 locations (for example, immediately after a path separator) should be given
 more weight.

 To search efficiently, especially in large projects, you should adopt a
 "path-centric" rather than a "filename-centric" mentality. That is you should
 think more about where the desired file is found rather than what it is
 called. This means narrowing your search down by including some characters
 from the upper path components rather than just entering characters from the
 filename itself.

 Screencasts demonstrating the plug-in can be viewed at:

  https://wincent.com/products/command-t


 REQUIREMENTS                                    *command-t-requirements*

 The plug-in requires Vim compiled with Ruby support, a compatible Ruby
 installation at the operating system level, and a C compiler to build
 the Ruby extension.


 1. Vim compiled with Ruby support

 You can check for Ruby support by launching Vim with the --version switch:

  vim --version

 If "+ruby" appears in the version information then your version of Vim has
 Ruby support.

 Another way to check is to simply try using the :ruby command from within Vim
 itself:

  :ruby 1

 If your Vim lacks support you'll see an error message like this:

  E319: Sorry, the command is not available in this version

 The version of Vim distributed with Mac OS X does not include Ruby support,
 while MacVim does; it is available from:

  http://github.com/b4winckler/macvim/downloads

 For Windows users, the Vim 7.2 executable available from www.vim.org does
 include Ruby support, and is recommended over version 7.3 (which links against
 Ruby 1.9, but apparently has some bugs that need to be resolved).


 2. Ruby

 In addition to having Ruby support in Vim, your system itself must have a
 compatible Ruby install. "Compatible" means the same version as Vim itself
 links against. If you use a different version then Command-T is unlikely
 to work (see TROUBLE-SHOOTING below).

 On Mac OS X Snow Leopard, the system comes with Ruby 1.8.7 and all recent
 versions of MacVim (the 7.2 snapshots and 7.3) are linked against it.

 On Linux and similar platforms, the linked version of Ruby will depend on
 your distribution. You can usually find this out by examining the
 compilation and linking flags displayed by the |:version| command in Vim, and
 by looking at the output of:

  :ruby puts RUBY_VERSION

 A suitable Ruby environment for Windows can be installed using the Ruby
 1.8.7-p299 RubyInstaller available at:

  http://rubyinstaller.org/downloads/archives

 If using RubyInstaller be sure to download the installer executable, not the
 7-zip archive. When installing mark the checkbox "Add Ruby executables to your
 PATH" so that Vim can find them.


 3. C compiler

 Part of Command-T is implemented in C as a Ruby extension for speed, allowing
 it to work responsively even on directory hierarchies containing enormous
 numbers of files. As such, a C compiler is required in order to build the
 extension and complete the installation.

 On Mac OS X, this can be obtained by installing the Xcode Tools that come on
 the Mac OS X install disc.

 On Windows, the RubyInstaller Development Kit can be used to conveniently
 install the necessary tool chain:

  http://rubyinstaller.org/downloads/archives

 At the time of writing, the appropriate development kit for use with Ruby
 1.8.7 is DevKit-3.4.5r3-20091110.

 To use the Development Kit extract the archive contents to your C:\Ruby
 folder.


 INSTALLATION                                    *command-t-installation*

 Command-T is distributed as a "vimball" which means that it can be installed
 by opening it in Vim and then sourcing it:

  :e command-t.vba
  :so %

 The files will be installed in your |'runtimepath'|. To check where this is
 you can issue:

  :echo &rtp

 The C extension must then be built, which can be done from the shell. If you
 use a typical |'runtimepath'| then the files were installed inside ~/.vim and
 you can build the extension with:

  cd ~/.vim/ruby/command-t
  ruby extconf.rb
  make

 Note: If you are an RVM user, you must perform the build using the same
 version of Ruby that Vim itself is linked against. This will often be the
 system Ruby, which can be selected before issuing the "make" command with:

  rvm use system


 MANAGING USING PATHOGEN                         *command-t-pathogen*

 Pathogen is a plugin that allows you to maintain plugin installations in
 separate, isolated subdirectories under the "bundle" directory in your
 |'runtimepath'|. The following examples assume that you already have
 Pathogen installed and configured, and that you are installing into
 ~/.vim/bundle. For more information about Pathogen, see:

  http://www.vim.org/scripts/script.php?script_id=2332

 If you manage your entire ~/.vim folder using Git then you can add the
 Command-T repository as a submodule:

  cd ~/.vim
  git submodule add git://git.wincent.com/command-t.git bundle/command-t
  git submodule init

 Or if you just wish to do a simple clone instead of using submodules:

  cd ~/.vim
  git clone git://git.wincent.com/command-t.git bundle/command-t

 Once you have a local copy of the repository you can update it at any time
 with:

  cd ~/.vim/bundle/command-t
  git pull

 Or you can switch to a specific release with:

  cd ~/.vim/bundle/command-t
  git checkout 0.8b

 After installing or updating you must build the extension:

  cd ~/.vim/bundle/command-t
  rake make

 While the Vimball installation automatically generates the help tags, under
 Pathogen it is necessary to do so explicitly from inside Vim:

  :call pathogen#helptags()


 TROUBLE-SHOOTING                                *command-t-trouble-shooting*

 Most installation problems are caused by a mismatch between the version of
 Ruby on the host operating system, and the version of Ruby that Vim itself
 linked against at compile time. For example, if one is 32-bit and the other is
 64-bit, or one is from the Ruby 1.9 series and the other is from the 1.8
 series, then the plug-in is not likely to work.

 As such, on Mac OS X, I recommend using the standard Ruby that comes with the
 system (currently 1.8.7) along with the latest version of MacVim (currently
 version 7.3). If you wish to use custom builds of Ruby or of MacVim (not
 recommmended) then you will have to take extra care to ensure that the exact
 same Ruby environment is in effect when building Ruby, Vim and the Command-T
 extension.

 For Windows, the following combination is known to work:

  - Vim 7.2 from http://www.vim.org/download.php:
      ftp://ftp.vim.org/pub/vim/pc/gvim72.exe
  - Ruby 1.8.7-p299 from http://rubyinstaller.org/downloads/archives:
      http://rubyforge.org/frs/download.php/71492/rubyinstaller-1.8.7-p299.exe
  - DevKit 3.4.5r3-20091110 from http://rubyinstaller.org/downloads/archives:
      http://rubyforge.org/frs/download.php/66888/devkit-3.4.5r3-20091110.7z

 If a problem occurs the first thing you should do is inspect the output of:

  ruby extconf.rb
  make

 During the installation, and:

  vim --version

 And compare the compilation and linker flags that were passed to the
 extension and to Vim itself when they were built. If the Ruby-related
 flags or architecture flags are different then it is likely that something
 has changed in your Ruby environment and the extension may not work until
 you eliminate the discrepancy.


 USAGE                                           *command-t-usage*

 Bring up the Command-T match window by typing:

  <Leader>t

 This mapping is set up automatically for you, provided you do not already have
 a mapping for <Leader>t or |:CommandT|. You can also bring up the match window
 by issuing the command:

  :CommandT

 A prompt will appear at the bottom of the screen along with a match window
 showing all of the files in the current directory (as returned by the
 |:pwd| command).

 For the most efficient file navigation within a project it's recommended that
 you |:cd| into the root directory of your project when starting to work on it.
 If you wish to open a file from outside of the project folder you can pass in
 an optional path argument (relative or absolute) to |:CommandT|:

  :CommandT ../path/to/other/files

 Type letters in the prompt to narrow down the selection, showing only the
 files whose paths contain those letters in the specified order. Letters do not
 need to appear consecutively in a path in order for it to be classified as a
 match.

 Once the desired file has been selected it can be opened by pressing <CR>.
 (By default files are opened in the current window, but there are other
 mappings that you can use to open in a vertical or horizontal split, or in
 a new tab.) Note that if you have |'nohidden'| set and there are unsaved
 changes in the current window when you press <CR> then opening in the current
 window would fail; in this case Command-T will open the file in a new split.

 The following mappings are active when the prompt has focus:

    <BS>        delete the character to the left of the cursor
    <Del>       delete the character at the cursor
    <Left>      move the cursor one character to the left
    <C-h>       move the cursor one character to the left
    <Right>     move the cursor one character to the right
    <C-l>       move the cursor one character to the right
    <C-a>       move the cursor to the start (left)
    <C-e>       move the cursor to the end (right)
    <C-u>       clear the contents of the prompt
    <Tab>       change focus to the match listing

 The following mappings are active when the match listing has focus:

    <Tab>       change focus to the prompt

 The following mappings are active when either the prompt or the match listing
 has focus:

    <CR>        open the selected file
    <C-CR>      open the selected file in a new split window
    <C-s>       open the selected file in a new split window
    <C-v>       open the selected file in a new vertical split window
    <C-t>       open the selected file in a new tab
    <C-j>       select next file in the match listing
    <C-n>       select next file in the match listing
    <Down>      select next file in the match listing
    <C-k>       select previous file in the match listing
    <C-p>       select previous file in the match listing
    <Up>        select previous file in the match listing
    <C-c>       cancel (dismisses match listing)

 The following is also available on terminals which support it:

    <Esc>       cancel (dismisses match listing)

 Note that the default mappings can be overriden by setting options in your
 ~/.vimrc file (see the OPTIONS section for a full list of available options).

 In addition, when the match listing has focus, typing a character will cause
 the selection to jump to the first path which begins with that character.
 Typing multiple characters consecutively can be used to distinguish between
 paths which begin with the same prefix.


 COMMANDS                                        *command-t-commands*

                                                *:CommandT*
 |:CommandT|     Brings up the Command-T match window, starting in the
                current working directory as returned by the|:pwd|
                command.

                                                *:CommandTFlush*
 |:CommandTFlush|Instructs the plug-in to flush its path cache, causing
                the directory to be rescanned for new or deleted paths
                the next time the match window is shown. In addition, all
                configuration settings are re-evaluated, causing any
                changes made to settings via the |:let| command to be picked
                up.


 MAPPINGS                                        *command-t-mappings*

 By default Command-T comes with only one mapping:

  <Leader>t     bring up the Command-T match window

 However, Command-T won't overwrite a pre-existing mapping so if you prefer
 to define a different mapping use a line like this in your ~/.vimrc:

  nmap <silent> <Leader>t :CommandT<CR>

 Replacing "<Leader>t" with your mapping of choice.

 Note that in the case of MacVim you actually can map to Command-T (written
 as <D-t> in Vim) in your ~/.gvimrc file if you first unmap the existing menu
 binding of Command-T to "New Tab":

  if has("gui_macvim")
    macmenu &File.New\ Tab key=<nop>
    map <D-t> :CommandT<CR>
  endif

 When the Command-T window is active a number of other additional mappings
 become available for doing things like moving between and selecting matches.
 These are fully described above in the USAGE section, and settings for
 overriding the mappings are listed below under OPTIONS.


 OPTIONS                                         *command-t-options*

 A number of options may be set in your ~/.vimrc to influence the behaviour of
 the plug-in. To set an option, you include a line like this in your ~/.vimrc:

    let g:CommandTMaxFiles=20000

 To have Command-T pick up new settings immediately (that is, without having
 to restart Vim) you can issue the |:CommandTFlush| command after making
 changes via |:let|.

 Following is a list of all available options:

                                                *g:CommandTMaxFiles*
  |g:CommandTMaxFiles|                           number (default 10000)

      The maximum number of files that will be considered when scanning the
      current directory. Upon reaching this number scanning stops.

                                                *g:CommandTMaxDepth*
  |g:CommandTMaxDepth|                           number (default 15)

      The maximum depth (levels of recursion) to be explored when scanning the
      current directory. Any directories at levels beyond this depth will be
      skipped.

                                                *g:CommandTMaxHeight*
  |g:CommandTMaxHeight|                          number (default: 0)

      The maximum height in lines the match window is allowed to expand to.
      If set to 0, the window will occupy as much of the available space as
      needed to show matching entries.

                                                *g:CommandTAlwaysShowDotFiles*
  |g:CommandTAlwaysShowDotFiles|                 boolean (default: 0)

      By default Command-T will show dot-files only if the entered search
      string contains a dot that could cause a dot-file to match. When set to
      a non-zero value, this setting instructs Command-T to always include
      matching dot-files in the match list regardless of whether the search
      string contains a dot. See also |g:CommandTNeverShowDotFiles|.

                                                *g:CommandTNeverShowDotFiles*
  |g:CommandTNeverShowDotFiles|                  boolean (default: 0)

      By default Command-T will show dot-files if the entered search string
      contains a dot that could cause a dot-file to match. When set to a
      non-zero value, this setting instructs Command-T to never show dot-files
      under any circumstances. Note that it is contradictory to set both this
      setting and |g:CommandTAlwaysShowDotFiles| to true, and if you do so Vim
      will suffer from headaches, nervous twitches, and sudden mood swings.

                                                *g:CommandTScanDotDirectories*
  |g:CommandTScanDotDirectories|                 boolean (default: 0)

      Normally Command-T will not recurse into "dot-directories" (directories
      whose names begin with a dot) while performing its initial scan. Set
      this setting to a non-zero value to override this behavior and recurse.
      Note that this setting is completely independent of the
      |g:CommandTAlwaysShowDotFiles| and |g:CommandTNeverShowDotFiles|
      settings; those apply only to the selection and display of matches
      (after scanning has been performed), whereas
      |g:CommandTScanDotDirectories| affects the behaviour at scan-time.

      Note also that even with this setting on you can still use Command-T to
      open files inside a "dot-directory" such as ~/.vim, but you have to use
      the |:cd| command to change into that directory first. For example:

        :cd ~/.vim
        :CommandT

                                                *g:CommandTMatchWindowAtTop*
  |g:CommandTMatchWindowAtTop|                   boolean (default: 0)

      When this settings is off (the default) the match window will appear at
      the bottom so as to keep it near to the prompt. Turning it on causes the
      match window to appear at the top instead. This may be preferable if you
      want the best match (usually the first one) to appear in a fixed location
      on the screen rather than moving as the number of matches changes during
      typing.

 As well as the basic options listed above, there are a number of settings that
 can be used to override the default key mappings used by Command-T. For
 example, to set <C-x> as the mapping for cancelling (dismissing) the Command-T
 window, you would add the following to your ~/.vimrc:

  let g:CommandTCancelMap='<C-x>'

 Multiple, alternative mappings may be specified using list syntax:

  let g:CommandTCancelMap=['<C-x>', '<C-c>']

 Following is a list of all map settings and their defaults:

                              Setting   Default mapping(s)

                                       *g:CommandTBackspaceMap*
              |g:CommandTBackspaceMap|  <BS>

                                       *g:CommandTDeleteMap*
                 |g:CommandTDeleteMap|  <Del>

                                       *g:CommandTAcceptSelectionMap*
        |g:CommandTAcceptSelectionMap|  <CR>

                                       *g:CommandTAcceptSelectionSplitMap*
   |g:CommandTAcceptSelectionSplitMap|  <C-CR>
                                        <C-s>

                                       *g:CommandTAcceptSelectionTabMap*
     |g:CommandTAcceptSelectionTabMap|  <C-t>

                                       *g:CommandTAcceptSelectionVSplitMap*
  |g:CommandTAcceptSelectionVSplitMap|  <C-v>

                                       *g:CommandTToggleFocusMap*
            |g:CommandTToggleFocusMap|  <Tab>

                                       *g:CommandTCancelMap*
                 |g:CommandTCancelMap|  <C-c>
                                        <Esc> (not on all terminals)

                                       *g:CommandTSelectNextMap*
             |g:CommandTSelectNextMap|  <C-n>
                                        <C-j>
                                        <Down>

                                       *g:CommandTSelectPrevMap*
             |g:CommandTSelectPrevMap|  <C-p>
                                        <C-k>
                                        <Up>

                                       *g:CommandTClearMap*
                  |g:CommandTClearMap|  <C-u>

                                       *g:CommandTCursorLeftMap*
             |g:CommandTCursorLeftMap|  <Left>
                                        <C-h>

                                       *g:CommandTCursorRightMap*
            |g:CommandTCursorRightMap|  <Right>
                                        <C-l>

                                       *g:CommandTCursorEndMap*
              |g:CommandTCursorEndMap|  <C-e>

                                       *g:CommandTCursorStartMap*
            |g:CommandTCursorStartMap|  <C-a>

 In addition to the options provided by Command-T itself, some of Vim's own
 settings can be used to control behavior:

                                                *command-t-wildignore*
  |'wildignore'|                                 string (default: '')

      Vim's |'wildignore'| setting is used to determine which files should be
      excluded from listings. This is a comma-separated list of glob patterns.
      It defaults to the empty string, but common settings include "*.o,*.obj"
      (to exclude object files) or ".git,.svn" (to exclude SCM metadata
      directories). For example:

        :set wildignore+=*.o,*.obj,.git

      A pattern such as "vendor/rails/**" would exclude all files and
      subdirectories inside the "vendor/rails" directory (relative to
      directory Command-T starts in).

      See the |'wildignore'| documentation for more information.


 AUTHORS                                         *command-t-authors*

 Command-T is written and maintained by Wincent Colaiuta <win@wincent.com>.
 Other contributors that have submitted patches include (in alphabetical
 order):

  Lucas de Vries
  Matthew Todd
  Mike Lundy
  Scott Bronson
  Sung Pae
  Zak Johnson

 As this was the first Vim plug-in I had ever written I was heavily influenced
 by the design of the LustyExplorer plug-in by Stephen Bach, which I understand
 is one of the largest Ruby-based Vim plug-ins to date.

 While the Command-T codebase doesn't contain any code directly copied from
 LustyExplorer, I did use it as a reference for answers to basic questions (like
 "How do you do 'X' in a Ruby-based Vim plug-in?"), and also copied some basic
 architectural decisions (like the division of the code into Prompt, Settings
 and MatchWindow classes).

 LustyExplorer is available from:

  http://www.vim.org/scripts/script.php?script_id=1890


 WEBSITE                                         *command-t-website*

 The official website for Command-T is:

  https://wincent.com/products/command-t

 The latest release will always be available from there.

 Development in progress can be inspected via the project's Git repository
 browser at:

  https://wincent.com/repos/command-t

 A copy of each release is also available from the official Vim scripts site
 at:

  http://www.vim.org/scripts/script.php?script_id=3025

 Bug reports should be submitted to the issue tracker at:

  https://wincent.com/issues


 DONATIONS                                       *command-t-donations*

 Command-T itself is free software released under the terms of the BSD license.
 If you would like to support further development you can make a donation via
 PayPal to win@wincent.com:

  https://wincent.com/products/command-t/donations


 LICENSE                                         *command-t-license*

 Copyright 2010-2011 Wincent Colaiuta. All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

 1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.


 HISTORY                                         *command-t-history*

 1.0.1 (5 January 2011)

 - work around bug when mapping |:CommandTFlush|, wherein the default mapping
  for |:CommandT| would not be set up
 - clean up when leaving the Command-T buffer via unexpected means (such as
  with <C-W k> or similar)

 1.0 (26 November 2010)

 - make relative path simplification work on Windows

 1.0b (5 November 2010)

 - work around platform-specific Vim 7.3 bug seen by some users (wherein
  Vim always falsely reports to Ruby that the buffer numbers is 0)
 - re-use the buffer that is used to show the match listing, rather than
  throwing it away and recreating it each time Command-T is shown; this
  stops the buffer numbers from creeping up needlessly

 0.9 (8 October 2010)

 - use relative paths when opening files inside the current working directory
  in order to keep buffer listings as brief as possible (patch from Matthew
  Todd)

 0.8.1 (14 September 2010)

 - fix mapping issues for users who have set |'notimeout'| (patch from Sung
  Pae)

 0.8 (19 August 2010)

 - overrides for the default mappings can now be lists of strings, allowing
  multiple mappings to be defined for any given action
 - <Leader>t mapping only set up if no other map for |:CommandT| exists
  (patch from Scott Bronson)
 - prevent folds from appearing in the match listing
 - tweaks to avoid the likelihood of "Not enough room" errors when trying to
  open files
 - watch out for "nil" windows when restoring window dimensions
 - optimizations (avoid some repeated downcasing)
 - move all Ruby files under the "command-t" subdirectory and avoid polluting
  the "Vim" module namespace

 0.8b (11 July 2010)

 - large overhaul of the scoring algorithm to make the ordering of returned
  results more intuitive; given the scope of the changes and room for
  optimization of the new algorithm, this release is labelled as "beta"

 0.7 (10 June 2010)

 - handle more |'wildignore'| patterns by delegating to Vim's own |expand()|
  function; with this change it is now viable to exclude patterns such as
  'vendor/rails/**' in addition to filename-only patterns like '*.o' and
  '.git' (patch from Mike Lundy)
 - always sort results alphabetically for empty search strings; this eliminates
  filesystem-specific variations (patch from Mike Lundy)

 0.6 (28 April 2010)

 - |:CommandT| now accepts an optional parameter to specify the starting
  directory, temporarily overriding the usual default of Vim's |:pwd|
 - fix truncated paths when operating from root directory

 0.5.1 (11 April 2010)

 - fix for Ruby 1.9 compatibility regression introduced in 0.5
 - documentation enhancements, specifically targetted at Windows users

 0.5 (3 April 2010)

 - |:CommandTFlush| now re-evaluates settings, allowing changes made via |let|
  to be picked up without having to restart Vim
 - fix premature abort when scanning very deep directory hierarchies
 - remove broken |<Esc>| key mapping on vt100 and xterm terminals
 - provide settings for overriding default mappings
 - minor performance optimization

 0.4 (27 March 2010)

 - add |g:CommandTMatchWindowAtTop| setting (patch from Zak Johnson)
 - documentation fixes and enhancements
 - internal refactoring and simplification

 0.3 (24 March 2010)

 - add |g:CommandTMaxHeight| setting for controlling the maximum height of the
  match window (patch from Lucas de Vries)
 - fix bug where |'list'| setting might be inappropriately set after dismissing
  Command-T
 - compatibility fix for different behaviour of "autoload" under Ruby 1.9.1
 - avoid "highlight group not found" warning when run under a version of Vim
  that does not have syntax highlighting support
 - open in split when opening normally would fail due to |'hidden'| and
  |'modified'| values

 0.2 (23 March 2010)

 - compatibility fixes for compilation under Ruby 1.9 series
 - compatibility fixes for compilation under Ruby 1.8.5
 - compatibility fixes for Windows and other non-UNIX platforms
 - suppress "mapping already exists" message if <Leader>t mapping is already
  defined when plug-in is loaded
 - exclude paths based on |'wildignore'| setting rather than a hardcoded
  regular expression

 0.1 (22 March 2010)

 - initial public release

 ------------------------------------------------------------------------------
 vim:tw=78:ft=help:
--- a/plugin/command-t.vim
+++ b/plugin/command-t.vim
@ -1,151 +0,0 @@
 " command-t.vim
 " Copyright 2010 Wincent Colaiuta. All rights reserved.
 "
 " Redistribution and use in source and binary forms, with or without
 " modification, are permitted provided that the following conditions are met:
 "
 " 1. Redistributions of source code must retain the above copyright notice,
 "    this list of conditions and the following disclaimer.
 " 2. Redistributions in binary form must reproduce the above copyright notice,
 "    this list of conditions and the following disclaimer in the documentation
 "    and/or other materials provided with the distribution.
 "
 " THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 " AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 " IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 " ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 " LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 " CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 " SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 " INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 " CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 " ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 " POSSIBILITY OF SUCH DAMAGE.

 if exists("g:command_t_loaded")
  finish
 endif
 let g:command_t_loaded = 1

 command -nargs=? -complete=dir CommandT call <SID>CommandTShow(<q-args>)
 command CommandTFlush call <SID>CommandTFlush()

 if !hasmapto(':CommandT<CR>')
  silent! nmap <unique> <silent> <Leader>t :CommandT<CR>
 endif

 function s:CommandTRubyWarning()
  echohl WarningMsg
  echo "command-t.vim requires Vim to be compiled with Ruby support"
  echo "For more information type:  :help command-t"
  echohl none
 endfunction

 function s:CommandTShow(arg)
  if has('ruby')
    ruby $command_t.show
  else
    call s:CommandTRubyWarning()
  endif
 endfunction

 function s:CommandTFlush()
  if has('ruby')
    ruby $command_t.flush
  else
    call s:CommandTRubyWarning()
  endif
 endfunction

 if !has('ruby')
  finish
 endif

 function CommandTHandleKey(arg)
  ruby $command_t.handle_key
 endfunction

 function CommandTBackspace()
  ruby $command_t.backspace
 endfunction

 function CommandTDelete()
  ruby $command_t.delete
 endfunction

 function CommandTAcceptSelection()
  ruby $command_t.accept_selection
 endfunction

 function CommandTAcceptSelectionTab()
  ruby $command_t.accept_selection :command => 'tabe'
 endfunction

 function CommandTAcceptSelectionSplit()
  ruby $command_t.accept_selection :command => 'sp'
 endfunction

 function CommandTAcceptSelectionVSplit()
  ruby $command_t.accept_selection :command => 'vs'
 endfunction

 function CommandTToggleFocus()
  ruby $command_t.toggle_focus
 endfunction

 function CommandTCancel()
  ruby $command_t.cancel
 endfunction

 function CommandTSelectNext()
  ruby $command_t.select_next
 endfunction

 function CommandTSelectPrev()
  ruby $command_t.select_prev
 endfunction

 function CommandTClear()
  ruby $command_t.clear
 endfunction

 function CommandTCursorLeft()
  ruby $command_t.cursor_left
 endfunction

 function CommandTCursorRight()
  ruby $command_t.cursor_right
 endfunction

 function CommandTCursorEnd()
  ruby $command_t.cursor_end
 endfunction

 function CommandTCursorStart()
  ruby $command_t.cursor_start
 endfunction

 ruby << EOF
  # require Ruby files
  begin
    # prepare controller
    require 'command-t/vim'
    require 'command-t/controller'
    $command_t = CommandT::Controller.new
  rescue LoadError
    load_path_modified = false
    ::VIM::evaluate('&runtimepath').to_s.split(',').each do |path|
      lib = "#{path}/ruby"
      if !$LOAD_PATH.include?(lib) and File.exist?(lib)
        $LOAD_PATH << lib
        load_path_modified = true
      end
    end
    retry if load_path_modified

    # could get here if C extension was not compiled, or was compiled
    # for the wrong architecture or Ruby version
    require 'command-t/stub'
    $command_t = CommandT::Stub.new
  end
 EOF
--- a/ruby/command-t/Makefile
+++ b/ruby/command-t/Makefile
@ -1,181 +0,0 @@

 SHELL = /bin/sh

 #### Start of system configuration section. ####

 srcdir = .
 topdir = /Users/Sebastian/.rvm/rubies/ruby-1.8.7-p249/lib/ruby/1.8/i686-darwin10.2.0
 hdrdir = $(topdir)
 VPATH = $(srcdir):$(topdir):$(hdrdir)
 exec_prefix = $(prefix)
 prefix = $(DESTDIR)/Users/Sebastian/.rvm/rubies/ruby-1.8.7-p249
 sharedstatedir = $(prefix)/com
 mandir = $(datarootdir)/man
 psdir = $(docdir)
 oldincludedir = $(DESTDIR)/usr/include
 localedir = $(datarootdir)/locale
 bindir = $(exec_prefix)/bin
 libexecdir = $(exec_prefix)/libexec
 sitedir = $(libdir)/ruby/site_ruby
 htmldir = $(docdir)
 vendorarchdir = $(vendorlibdir)/$(sitearch)
 includedir = $(prefix)/include
 infodir = $(datarootdir)/info
 vendorlibdir = $(vendordir)/$(ruby_version)
 sysconfdir = $(prefix)/etc
 libdir = $(exec_prefix)/lib
 sbindir = $(exec_prefix)/sbin
 rubylibdir = $(libdir)/ruby/$(ruby_version)
 docdir = $(datarootdir)/doc/$(PACKAGE)
 dvidir = $(docdir)
 vendordir = $(libdir)/ruby/vendor_ruby
 datarootdir = $(prefix)/share
 pdfdir = $(docdir)
 archdir = $(rubylibdir)/$(arch)
 sitearchdir = $(sitelibdir)/$(sitearch)
 datadir = $(datarootdir)
 localstatedir = $(prefix)/var
 sitelibdir = $(sitedir)/$(ruby_version)

 CC = gcc
 LIBRUBY = $(LIBRUBY_A)
 LIBRUBY_A = lib$(RUBY_SO_NAME)-static.a
 LIBRUBYARG_SHARED = 
 LIBRUBYARG_STATIC = -l$(RUBY_SO_NAME)-static

 RUBY_EXTCONF_H = 
 CFLAGS   =  -fno-common -g -O2 -pipe -fno-common $(cflags) 
 INCFLAGS = -I. -I$(topdir) -I$(hdrdir) -I$(srcdir)
 DEFS     = 
 CPPFLAGS = -DHAVE_RUBY_H  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE $(DEFS) $(cppflags)
 CXXFLAGS = $(CFLAGS) 
 ldflags  = -L. 
 dldflags = 
 archflag = 
 DLDFLAGS = $(ldflags) $(dldflags) $(archflag)
 LDSHARED = cc -dynamic -bundle -undefined suppress -flat_namespace
 AR = ar
 EXEEXT = 

 RUBY_INSTALL_NAME = ruby
 RUBY_SO_NAME = ruby
 arch = i686-darwin10.2.0
 sitearch = i686-darwin10.2.0
 ruby_version = 1.8
 ruby = /Users/Sebastian/.rvm/rubies/ruby-1.8.7-p249/bin/ruby
 RUBY = $(ruby)
 RM = rm -f
 MAKEDIRS = mkdir -p
 INSTALL = /usr/bin/install -c
 INSTALL_PROG = $(INSTALL) -m 0755
 INSTALL_DATA = $(INSTALL) -m 644
 COPY = cp

 #### End of system configuration section. ####

 preload = 

 libpath = . $(libdir)
 LIBPATH =  -L. -L$(libdir)
 DEFFILE = 

 CLEANFILES = mkmf.log
 DISTCLEANFILES = 

 extout = 
 extout_prefix = 
 target_prefix = 
 LOCAL_LIBS = 
 LIBS =   -ldl -lobjc  
 SRCS = ext.c match.c matcher.c
 OBJS = ext.o match.o matcher.o
 TARGET = ext
 DLLIB = $(TARGET).bundle
 EXTSTATIC = 
 STATIC_LIB = 

 BINDIR        = $(bindir)
 RUBYCOMMONDIR = $(sitedir)$(target_prefix)
 RUBYLIBDIR    = $(sitelibdir)$(target_prefix)
 RUBYARCHDIR   = $(sitearchdir)$(target_prefix)

 TARGET_SO     = $(DLLIB)
 CLEANLIBS     = $(TARGET).bundle $(TARGET).il? $(TARGET).tds $(TARGET).map
 CLEANOBJS     = *.o *.a *.s[ol] *.pdb *.exp *.bak

 all:		$(DLLIB)
 static:		$(STATIC_LIB)

 clean:
 		@-$(RM) $(CLEANLIBS) $(CLEANOBJS) $(CLEANFILES)

 distclean:	clean
 		@-$(RM) Makefile $(RUBY_EXTCONF_H) conftest.* mkmf.log
 		@-$(RM) core ruby$(EXEEXT) *~ $(DISTCLEANFILES)

 realclean:	distclean
 install: install-so install-rb

 install-so: $(RUBYARCHDIR)
 install-so: $(RUBYARCHDIR)/$(DLLIB)
 $(RUBYARCHDIR)/$(DLLIB): $(DLLIB)
 	$(INSTALL_PROG) $(DLLIB) $(RUBYARCHDIR)
 install-rb: pre-install-rb install-rb-default
 install-rb-default: pre-install-rb-default
 pre-install-rb: Makefile
 pre-install-rb-default: Makefile
 $(RUBYARCHDIR):
 	$(MAKEDIRS) $@

 site-install: site-install-so site-install-rb
 site-install-so: install-so
 site-install-rb: install-rb

 .SUFFIXES: .c .m .cc .cxx .cpp .C .o

 .cc.o:
 	$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<

 .cxx.o:
 	$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<

 .cpp.o:
 	$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<

 .C.o:
 	$(CXX) $(INCFLAGS) $(CPPFLAGS) $(CXXFLAGS) -c $<

 .c.o:
 	$(CC) $(INCFLAGS) $(CPPFLAGS) $(CFLAGS) -c $<

 $(DLLIB): $(OBJS) Makefile
 	@-$(RM) $@
 	$(LDSHARED) -o $@ $(OBJS) $(LIBPATH) $(DLDFLAGS) $(LOCAL_LIBS) $(LIBS)



 ###
 # Copyright 2010 Wincent Colaiuta. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # 1. Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.

 CFLAGS += -std=c99 -Wall -Wextra -Wno-unused-parameter
--- a/ruby/command-t/controller.rb
+++ b/ruby/command-t/controller.rb
@ -1,307 +0,0 @@
 # Copyright 2010 Wincent Colaiuta. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # 1. Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.

 require 'command-t/finder'
 require 'command-t/match_window'
 require 'command-t/prompt'

 module CommandT
  class Controller
    def initialize
      @prompt = Prompt.new
      set_up_max_height
      set_up_finder
    end

    def show
      # optional parameter will be desired starting directory, or ""
      @path           = File.expand_path(::VIM::evaluate('a:arg'), VIM::pwd)
      @finder.path    = @path
      @initial_window = $curwin
      @initial_buffer = $curbuf
      @match_window   = MatchWindow.new \
        :prompt               => @prompt,
        :match_window_at_top  => get_bool('g:CommandTMatchWindowAtTop')
      @focus          = @prompt
      @prompt.focus
      register_for_key_presses
      clear # clears prompt and lists matches
    rescue Errno::ENOENT
      # probably a problem with the optional parameter
      @match_window.print_no_such_file_or_directory
    end

    def hide
      @match_window.close
      if VIM::Window.select @initial_window
        if @initial_buffer.number == 0
          # upstream bug: buffer number misreported as 0
          # see: https://wincent.com/issues/1617
          ::VIM::command "silent b #{@initial_buffer.name}"
        else
          ::VIM::command "silent b #{@initial_buffer.number}"
        end
      end
    end

    def flush
      set_up_max_height
      set_up_finder
    end

    def handle_key
      key = ::VIM::evaluate('a:arg').to_i.chr
      if @focus == @prompt
        @prompt.add! key
        list_matches
      else
        @match_window.find key
      end
    end

    def backspace
      if @focus == @prompt
        @prompt.backspace!
        list_matches
      end
    end

    def delete
      if @focus == @prompt
        @prompt.delete!
        list_matches
      end
    end

    def accept_selection options = {}
      selection = @match_window.selection
      hide
      open_selection(selection, options) unless selection.nil?
    end

    def toggle_focus
      @focus.unfocus # old focus
      @focus = @focus == @prompt ? @match_window : @prompt
      @focus.focus # new focus
    end

    def cancel
      hide
    end

    def select_next
      @match_window.select_next
    end

    def select_prev
      @match_window.select_prev
    end

    def clear
      @prompt.clear!
      list_matches
    end

    def cursor_left
      @prompt.cursor_left if @focus == @prompt
    end

    def cursor_right
      @prompt.cursor_right if @focus == @prompt
    end

    def cursor_end
      @prompt.cursor_end if @focus == @prompt
    end

    def cursor_start
      @prompt.cursor_start if @focus == @prompt
    end

    def leave
      @match_window.leave
    end

    def unload
      @match_window.unload
    end

  private

    def set_up_max_height
      @max_height = get_number('g:CommandTMaxHeight') || 0
    end

    def set_up_finder
      @finder = CommandT::Finder.new nil,
        :max_files              => get_number('g:CommandTMaxFiles'),
        :max_depth              => get_number('g:CommandTMaxDepth'),
        :always_show_dot_files  => get_bool('g:CommandTAlwaysShowDotFiles'),
        :never_show_dot_files   => get_bool('g:CommandTNeverShowDotFiles'),
        :scan_dot_directories   => get_bool('g:CommandTScanDotDirectories')
    end

    def exists? name
      ::VIM::evaluate("exists(\"#{name}\")").to_i != 0
    end

    def get_number name
      exists?(name) ? ::VIM::evaluate("#{name}").to_i : nil
    end

    def get_bool name
      exists?(name) ? ::VIM::evaluate("#{name}").to_i != 0 : nil
    end

    def get_string name
      exists?(name) ? ::VIM::evaluate("#{name}").to_s : nil
    end

    # expect a string or a list of strings
    def get_list_or_string name
      return nil unless exists?(name)
      list_or_string = ::VIM::evaluate("#{name}")
      if list_or_string.kind_of?(Array)
        list_or_string.map { |item| item.to_s }
      else
        list_or_string.to_s
      end
    end

    def relative_path_under_working_directory path
      # any path under the working directory will be specified as a relative
      # path to improve the readability of the buffer list etc
      pwd = File.expand_path(VIM::pwd) + '/'
      path.index(pwd) == 0 ? path[pwd.length..-1] : path
    end

    # Backslash-escape space, \, |, %, #, "
    def sanitize_path_string str
      # for details on escaping command-line mode arguments see: :h :
      # (that is, help on ":") in the Vim documentation.
      str.gsub(/[ \\|%#"]/, '\\\\\0')
    end

    def default_open_command
      if !get_bool('&hidden') && get_bool('&modified')
        'sp'
      else
        'e'
      end
    end

    def ensure_appropriate_window_selection
      # normally we try to open the selection in the current window, but there
      # is one exception:
      #
      # - we don't touch any "unlisted" buffer with buftype "nofile" (such as
      #   NERDTree or MiniBufExplorer); this is to avoid things like the "Not
      #   enough room" error which occurs when trying to open in a split in a
      #   shallow (potentially 1-line) buffer like MiniBufExplorer is current
      #
      # Other "unlisted" buffers, such as those with buftype "help" are treated
      # normally.
      initial = $curwin
      while true do
        break unless ::VIM::evaluate('&buflisted').to_i == 0 &&
          ::VIM::evaluate('&buftype').to_s == 'nofile'
        ::VIM::command 'wincmd w'     # try next window
        break if $curwin == initial # have already tried all
      end
    end

    def open_selection selection, options = {}
      command = options[:command] || default_open_command
      selection = File.expand_path selection, @path
      selection = relative_path_under_working_directory selection
      selection = sanitize_path_string selection
      ensure_appropriate_window_selection
      ::VIM::command "silent #{command} #{selection}"
    end

    def map key, function, param = nil
      ::VIM::command "noremap <silent> <buffer> #{key} " \
        ":call CommandT#{function}(#{param})<CR>"
    end

    def xterm?
      !!(::VIM::evaluate('&term') =~ /\Axterm/)
    end

    def vt100?
      !!(::VIM::evaluate('&term') =~ /\Avt100/)
    end

    def register_for_key_presses
      # "normal" keys (interpreted literally)
      numbers     = ('0'..'9').to_a.join
      lowercase   = ('a'..'z').to_a.join
      uppercase   = lowercase.upcase
      punctuation = '<>`@#~!"$%&/()=+*-_.,;:?\\\'{}[] ' # and space
      (numbers + lowercase + uppercase + punctuation).each_byte do |b|
        map "<Char-#{b}>", 'HandleKey', b
      end

      # "special" keys (overridable by settings)
      { 'Backspace'             => '<BS>',
        'Delete'                => '<Del>',
        'AcceptSelection'       => '<CR>',
        'AcceptSelectionSplit'  => ['<C-CR>', '<C-s>'],
        'AcceptSelectionTab'    => '<C-t>',
        'AcceptSelectionVSplit' => '<C-v>',
        'ToggleFocus'           => '<Tab>',
        'Cancel'                => ['<C-c>', '<Esc>'],
        'SelectNext'            => ['<C-n>', '<C-j>', '<Down>'],
        'SelectPrev'            => ['<C-p>', '<C-k>', '<Up>'],
        'Clear'                 => '<C-u>',
        'CursorLeft'            => ['<Left>', '<C-h>'],
        'CursorRight'           => ['<Right>', '<C-l>'],
        'CursorEnd'             => '<C-e>',
        'CursorStart'           => '<C-a>' }.each do |key, value|
        if override = get_list_or_string("g:CommandT#{key}Map")
          [override].flatten.each do |mapping|
            map mapping, key
          end
        else
          [value].flatten.each do |mapping|
            map mapping, key unless mapping == '<Esc>' && (xterm? || vt100?)
          end
        end
      end
    end

    # Returns the desired maximum number of matches, based on available
    # vertical space and the g:CommandTMaxHeight option.
    def match_limit
      limit = VIM::Screen.lines - 5
      limit = 1 if limit < 0
      limit = [limit, @max_height].min if @max_height > 0
      limit
    end

    def list_matches
      matches = @finder.sorted_matches_for @prompt.abbrev, :limit => match_limit
      @match_window.matches = matches
    end
  end # class Controller
 end # module commandT
--- a/ruby/command-t/depend
+++ b/ruby/command-t/depend
@ -1,24 +0,0 @@
 # Copyright 2010 Wincent Colaiuta. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # 1. Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.

 CFLAGS += -std=c99 -Wall -Wextra -Wno-unused-parameter
--- a/ruby/command-t/ext.bundle
+++ b/ruby/command-t/ext.bundle
--- a/ruby/command-t/ext.c
+++ b/ruby/command-t/ext.c
@ -1,65 +0,0 @@
 // Copyright 2010 Wincent Colaiuta. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 // 1. Redistributions of source code must retain the above copyright notice,
 //    this list of conditions and the following disclaimer.
 // 2. Redistributions in binary form must reproduce the above copyright notice,
 //    this list of conditions and the following disclaimer in the documentation
 //    and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 #include "match.h"
 #include "matcher.h"

 VALUE mCommandT         = 0; // module CommandT
 VALUE cCommandTMatch    = 0; // class CommandT::Match
 VALUE cCommandTMatcher  = 0; // class CommandT::Matcher

 VALUE CommandT_option_from_hash(const char *option, VALUE hash)
 {
    if (NIL_P(hash))
        return Qnil;
    VALUE key = ID2SYM(rb_intern(option));
    if (rb_funcall(hash, rb_intern("has_key?"), 1, key) == Qtrue)
        return rb_hash_aref(hash, key);
    else
        return Qnil;
 }

 void Init_ext()
 {
    // module CommandT
    mCommandT = rb_define_module("CommandT");

    // class CommandT::Match
    cCommandTMatch = rb_define_class_under(mCommandT, "Match", rb_cObject);

    // methods
    rb_define_method(cCommandTMatch, "initialize", CommandTMatch_initialize, -1);
    rb_define_method(cCommandTMatch, "matches?", CommandTMatch_matches, 0);
    rb_define_method(cCommandTMatch, "to_s", CommandTMatch_to_s, 0);

    // attributes
    rb_define_attr(cCommandTMatch, "score", Qtrue, Qfalse); // reader: true, writer: false

    // class CommandT::Matcher
    cCommandTMatcher = rb_define_class_under(mCommandT, "Matcher", rb_cObject);

    // methods
    rb_define_method(cCommandTMatcher, "initialize", CommandTMatcher_initialize, -1);
    rb_define_method(cCommandTMatcher, "sorted_matches_for", CommandTMatcher_sorted_matches_for, 2);
    rb_define_method(cCommandTMatcher, "matches_for", CommandTMatcher_matches_for, 1);
 }
--- a/ruby/command-t/ext.h
+++ b/ruby/command-t/ext.h
@ -1,36 +0,0 @@
 // Copyright 2010 Wincent Colaiuta. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 // 1. Redistributions of source code must retain the above copyright notice,
 //    this list of conditions and the following disclaimer.
 // 2. Redistributions in binary form must reproduce the above copyright notice,
 //    this list of conditions and the following disclaimer in the documentation
 //    and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 #include <ruby.h>

 extern VALUE mCommandT;         // module CommandT
 extern VALUE cCommandTMatch;    // class CommandT::Match
 extern VALUE cCommandTMatcher;  // class CommandT::Matcher

 // Encapsulates common pattern of checking for an option in an optional
 // options hash. The hash itself may be nil, but an exception will be
 // raised if it is not nil and not a hash.
 VALUE CommandT_option_from_hash(const char *option, VALUE hash);

 // Debugging macro.
 #define ruby_inspect(obj) rb_funcall(rb_mKernel, rb_intern("p"), 1, obj)
--- a/ruby/command-t/ext.o
+++ b/ruby/command-t/ext.o
--- a/ruby/command-t/extconf.rb
+++ b/ruby/command-t/extconf.rb
@ -1,32 +0,0 @@
 # Copyright 2010 Wincent Colaiuta. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # 1. Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.

 require 'mkmf'

 def missing item
  puts "couldn't find #{item} (required)"
  exit 1
 end

 have_header('ruby.h') or missing('ruby.h')
 create_makefile('ext')
--- a/ruby/command-t/finder.rb
+++ b/ruby/command-t/finder.rb
@ -1,51 +0,0 @@
 # Copyright 2010 Wincent Colaiuta. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 # 1. Redistributions of source code must retain the above copyright notice,
 #    this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright notice,
 #    this list of conditions and the following disclaimer in the documentation
 #    and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 # POSSIBILITY OF SUCH DAMAGE.

 require 'command-t/ext' # CommandT::Matcher
 require 'command-t/scanner'

 module CommandT
  # Encapsulates a Scanner instance (which builds up a list of available files
  # in a directory) and a Matcher instance (which selects from that list based
  # on a search string).
  class Finder
    def initialize path = Dir.pwd, options = {}
      @scanner = Scanner.new path, options
      @matcher = Matcher.new @scanner, options
    end

    # Options:
    #   :limit (integer): limit the number of returned matches
    def sorted_matches_for str, options = {}
      @matcher.sorted_matches_for str, options
    end

    def flush
      @scanner.flush
    end

    def path= path
      @scanner.path = path
    end
  end # class Finder
 end # CommandT
--- a/ruby/command-t/match.c
+++ b/ruby/command-t/match.c
@ -1,189 +0,0 @@
 // Copyright 2010 Wincent Colaiuta. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 // 1. Redistributions of source code must retain the above copyright notice,
 //    this list of conditions and the following disclaimer.
 // 2. Redistributions in binary form must reproduce the above copyright notice,
 //    this list of conditions and the following disclaimer in the documentation
 //    and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 #include "match.h"
 #include "ext.h"
 #include "ruby_compat.h"

 // use a struct to make passing params during recursion easier
 typedef struct
 {
    char    *str_p;                 // pointer to string to be searched
    long    str_len;                // length of same
    char    *abbrev_p;              // pointer to search string (abbreviation)
    long    abbrev_len;             // length of same
    double  max_score_per_char;
    int     dot_file;               // boolean: true if str is a dot-file
    int     always_show_dot_files;  // boolean
    int     never_show_dot_files;   // boolean
 } matchinfo_t;

 double recursive_match(matchinfo_t *m,  // sharable meta-data
                       long str_idx,    // where in the path string to start
                       long abbrev_idx, // where in the search string to start
                       long last_idx,   // location of last matched character
                       double score)    // cumulative score so far
 {
    double seen_score = 0;      // remember best score seen via recursion
    int dot_file_match = 0;     // true if abbrev matches a dot-file
    int dot_search = 0;         // true if searching for a dot

    for (long i = abbrev_idx; i < m->abbrev_len; i++)
    {
        char c = m->abbrev_p[i];
        if (c == '.')
            dot_search = 1;
        int found = 0;
        for (long j = str_idx; j < m->str_len; j++, str_idx++)
        {
            char d = m->str_p[j];
            if (d == '.')
            {
                if (j == 0 || m->str_p[j - 1] == '/')
                {
                    m->dot_file = 1;        // this is a dot-file
                    if (dot_search)         // and we are searching for a dot
                        dot_file_match = 1; // so this must be a match
                }
            }
            else if (d >= 'A' && d <= 'Z')
                d += 'a' - 'A'; // add 32 to downcase
            if (c == d)
            {
                found = 1;
                dot_search = 0;

                // calculate score
                double score_for_char = m->max_score_per_char;
                long distance = j - last_idx;
                if (distance > 1)
                {
                    double factor = 1.0;
                    char last = m->str_p[j - 1];
                    char curr = m->str_p[j]; // case matters, so get again
                    if (last == '/')
                        factor = 0.9;
                    else if (last == '-' ||
                            last == '_' ||
                            last == ' ' ||
                            (last >= '0' && last <= '9'))
                        factor = 0.8;
                    else if (last >= 'a' && last <= 'z' &&
                            curr >= 'A' && curr <= 'Z')
                        factor = 0.8;
                    else if (last == '.')
                        factor = 0.7;
                    else
                        // if no "special" chars behind char, factor diminishes
                        // as distance from last matched char increases
                        factor = (1.0 / distance) * 0.75;
                    score_for_char *= factor;
                }

                if (++j < m->str_len)
                {
                    // bump cursor one char to the right and
                    // use recursion to try and find a better match
                    double sub_score = recursive_match(m, j, i, last_idx, score);
                    if (sub_score > seen_score)
                        seen_score = sub_score;
                }

                score += score_for_char;
                last_idx = str_idx++;
                break;
            }
        }
        if (!found)
            return 0.0;
    }
    if (m->dot_file)
    {
        if (m->never_show_dot_files ||
            (!dot_file_match && !m->always_show_dot_files))
            return 0.0;
    }
    return (score > seen_score) ? score : seen_score;
 }

 // Match.new abbrev, string, options = {}
 VALUE CommandTMatch_initialize(int argc, VALUE *argv, VALUE self)
 {
    // process arguments: 2 mandatory, 1 optional
    VALUE str, abbrev, options;
    if (rb_scan_args(argc, argv, "21", &str, &abbrev, &options) == 2)
        options = Qnil;
    str             = StringValue(str);
    abbrev          = StringValue(abbrev); // already downcased by caller

    // check optional options hash for overrides
    VALUE always_show_dot_files = CommandT_option_from_hash("always_show_dot_files", options);
    VALUE never_show_dot_files = CommandT_option_from_hash("never_show_dot_files", options);

    matchinfo_t m;
    m.str_p                 = RSTRING_PTR(str);
    m.str_len               = RSTRING_LEN(str);
    m.abbrev_p              = RSTRING_PTR(abbrev);
    m.abbrev_len            = RSTRING_LEN(abbrev);
    m.max_score_per_char    = (1.0 / m.str_len + 1.0 / m.abbrev_len) / 2;
    m.dot_file              = 0;
    m.always_show_dot_files = always_show_dot_files == Qtrue;
    m.never_show_dot_files  = never_show_dot_files == Qtrue;

    // calculate score
    double score = 1.0;
    if (m.abbrev_len == 0) // special case for zero-length search string
    {
        // filter out dot files
        if (!m.always_show_dot_files)
        {
            for (long i = 0; i < m.str_len; i++)
            {
                char c = m.str_p[i];
                if (c == '.' && (i == 0 || m.str_p[i - 1] == '/'))
                {
                    score = 0.0;
                    break;
                }
            }
        }
    }
    else // normal case
        score = recursive_match(&m, 0, 0, 0, 0.0);