add bufexplorer

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diff --git a/vim/doc/bufexplorer.txt b/vim/doc/bufexplorer.txt
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+*bufexplorer.txt*              Buffer Explorer       Last Change: 22 Oct 2010
+
+Buffer Explorer                                *buffer-explorer* *bufexplorer*
+                                Version 7.2.8
+
+Plugin for easily exploring (or browsing) Vim |:buffers|.
+
+|bufexplorer-installation|   Installation
+|bufexplorer-usage|          Usage
+|bufexplorer-windowlayout|   Window Layout
+|bufexplorer-customization|  Customization
+|bufexplorer-changelog|      Change Log
+|bufexplorer-todo|           Todo
+|bufexplorer-credits|        Credits
+
+For Vim version 7.0 and above.
+This plugin is only available if 'compatible' is not set.
+
+{Vi does not have any of this}
+
+==============================================================================
+INSTALLATION                                        *bufexplorer-installation*
+
+To install:
+  - Download the bufexplorer.zip.
+  - Extract the zip archive into your runtime directory.
+    The archive contains plugin/bufexplorer.vim, and doc/bufexplorer.txt.
+  - Start Vim or goto an existing instance of Vim.
+  - Execute the following command:
+>
+      :helptag <your runtime directory>/doc
+<
+    This will generate all the help tags for any file located in the doc
+    directory.
+
+==============================================================================
+USAGE                                                      *bufexplorer-usage*
+
+To start exploring in the current window, use: >
+ \be   or   :BufExplorer
+To start exploring in a newly split horizontal window, use: >
+ \bs   or   :BufExplorerHorizontalSplit
+To start exploring in a newly split vertical window, use: >
+ \bv   or   :BufExplorerVerticalSplit
+
+If you would like to use something other than '\', you may simply change the
+leader (see |mapleader|).
+
+Note: If the current buffer is modified when bufexplorer started, the current
+      window is always split and the new bufexplorer is displayed in that new
+      window.
+
+Commands to use once exploring:
+
+ <F1>          Toggle help information.
+ <enter>       Opens the buffer that is under the cursor into the current
+               window.
+ <leftmouse>   Opens the buffer that is under the cursor into the current
+               window.
+ <shift-enter> Opens the buffer that is under the cursor in another tab.
+ d            |:delete|the buffer under the cursor from the list.  The
+               buffer's 'buflisted' is cleared. This allows for the buffer to
+               be displayed again using the 'show unlisted' command.
+ R             Toggles relative path/absolute path.
+ T             Toggles to show only buffers for this tab or not.
+ D            |:wipeout|the buffer under the cursor from the list.  When a
+               buffers is wiped, it will not be shown when unlisted buffer are
+               displayed.
+ f             Toggles whether you are taken to the active window when
+               selecting a buffer or not.
+ o             Opens the buffer that is under the cursor into the current
+               window.
+ p             Toggles the showing of a split filename/pathname.
+ q             Quit exploring.
+ r             Reverses the order the buffers are listed in.
+ s             Selects the order the buffers are listed in. Either by buffer
+               number, file name, file extension, most recently used (MRU), or
+               full path.
+ t             Opens the buffer that is under the cursor in another tab.
+ u             Toggles the showing of "unlisted" buffers.
+
+Once invoked, Buffer Explorer displays a sorted list (MRU is the default
+sort method) of all the buffers that are currently opened. You are then
+able to move the cursor to the line containing the buffer's name you are
+wanting to act upon. Once you have selected the buffer you would like,
+you can then either open it, close it(delete), resort the list, reverse
+the sort, quit exploring and so on...
+
+===============================================================================
+WINDOW LAYOUT                                       *bufexplorer-windowlayout*
+
+-------------------------------------------------------------------------------
+" Press <F1> for Help
+" Sorted by mru | Locate buffer | Absolute Split path
+"=
+ 01 %a    bufexplorer.txt      C:\Vim\vimfiles\doc       line 87
+ 02 #     bufexplorer.vim      c:\Vim\vimfiles\plugin    line 1
+-------------------------------------------------------------------------------
+  | |     |                    |                         |
+  | |     |                    |                         +-- Current Line #.
+  | |     |                    +-- Relative/Full Path
+  | |     +-- Buffer Name.
+  | +-- Buffer Attributes. See|:buffers|for more information.
+  +-- Buffer Number. See|:buffers|for more information.
+
+===============================================================================
+CUSTOMIZATION                                       *bufexplorer-customization*
+
+                                                          *g:bufExplorerChgWin*
+If set, bufexplorer will bring up the selected buffer in the window specified
+by g:bufExplorerChgWin.
+
+                                                     *g:bufExplorerDefaultHelp*
+To control whether the default help is displayed or not, use: >
+  let g:bufExplorerDefaultHelp=0       " Do not show default help.
+  let g:bufExplorerDefaultHelp=1       " Show default help.
+The default is to show the default help.
+
+                                                    *g:bufExplorerDetailedHelp*
+To control whether detailed help is display by, use: >
+  let g:bufExplorerDetailedHelp=0      " Do not show detailed help.
+  let g:bufExplorerDetailedHelp=1      " Show detailed help.
+The default is NOT to show detailed help.
+
+                                                      *g:bufExplorerFindActive*
+To control whether you are taken to the active window when selecting a buffer,
+use: >
+  let g:bufExplorerFindActive=0        " Do not go to active window.
+  let g:bufExplorerFindActive=1        " Go to active window.
+The default is to be taken to the active window.
+
+                                                         *g:bufExplorerFuncRef*
+When a buffer is selected, the functions specified either singly or as a list
+will be called.
+
+                                                     *g:bufExplorerReverseSort*
+To control whether to sort the buffer in reverse order or not, use: >
+  let g:bufExplorerReverseSort=0       " Do not sort in reverse order.
+  let g:bufExplorerReverseSort=1       " Sort in reverse order.
+The default is NOT to sort in reverse order.
+
+                                                 *g:bufExplorerShowDirectories*
+Directories usually show up in the list from using a command like ":e .".
+To control whether to show directories in the buffer list or not, use: >
+  let g:bufExplorerShowDirectories=1   " Show directories.
+  let g:bufExplorerShowDirectories=0   " Don't show directories.
+The default is to show directories.
+
+                                                *g:bufExplorerShowRelativePath*
+To control whether to show absolute paths or relative to the current
+directory, use: >
+  let g:bufExplorerShowRelativePath=0  " Show absolute paths.
+  let g:bufExplorerShowRelativePath=1  " Show relative paths.
+The default is to show absolute paths.
+
+                                                   *g:bufExplorerShowTabBuffer*
+To control weither or not to show buffers on for the specific tab or not, use: >
+  let g:bufExplorerShowTabBuffer=0        " No.
+  let g:bufExplorerShowTabBuffer=1        " Yes.
+The default is not to show.
+
+                                                    *g:bufExplorerShowUnlisted*
+To control whether to show unlisted buffer or not, use: >
+  let g:bufExplorerShowUnlisted=0      " Do not show unlisted buffers.
+  let g:bufExplorerShowUnlisted=1      " Show unlisted buffers.
+The default is to NOT show unlisted buffers.
+
+                                                          *g:bufExplorerSortBy*
+To control what field the buffers are sorted by, use: >
+  let g:bufExplorerSortBy='extension'  " Sort by file extension.
+  let g:bufExplorerSortBy='fullpath'   " Sort by full file path name.
+  let g:bufExplorerSortBy='mru'        " Sort by most recently used.
+  let g:bufExplorerSortBy='name'       " Sort by the buffer's name.
+  let g:bufExplorerSortBy='number'     " Sort by the buffer's number.
+The default is to sort by mru.
+
+                                                      *g:bufExplorerSplitBelow*
+To control where the new split window will be placed above or below the
+current window, use: >
+  let g:bufExplorerSplitBelow=1        " Split new window below current.
+  let g:bufExplorerSplitBelow=0        " Split new window above current.
+The default is to use what ever is set by the global &splitbelow
+variable.
+
+                                                *g:bufExplorerSplitOutPathName*
+To control whether to split out the path and file name or not, use: >
+  let g:bufExplorerSplitOutPathName=1  " Split the path and file name.
+  let g:bufExplorerSplitOutPathName=0  " Don't split the path and file
+                                       " name.
+The default is to split the path and file name.
+
+                                                      *g:bufExplorerSplitRight*
+To control where the new vsplit window will be placed to the left or right of
+current window, use: >
+  let g:bufExplorerSplitRight=0        " Split left.
+  let g:bufExplorerSplitRight=1        " Split right.
+The default is to use the global &splitright.
+
+===============================================================================
+CHANGE LOG                                              *bufexplorer-changelog*
+
+7.2.8  - Enhancements:
+         * Thanks to Charles Campbell for integrating bufexplorer with GDBMGR.
+           http://mysite.verizon.net/astronaut/vim/index.html#GDBMGR
+7.2.7  - Fix:
+         * My 1st attempt to fix the "cache" issue where buffers information
+           has changed but the cache/display does not reflect those changes.
+           More work still needs to be done.
+7.2.6  - Fix:
+         * Thanks to Michael Henry for pointing out that I totally forgot to
+           update the inline help to reflect the previous change to the 'd'
+           and 'D' keys. Opps!
+7.2.5  - Fix:
+         * Philip Morant suggested switching the command (bwipe) associated
+           with the 'd' key with the command (bdelete) associated with the 'D'
+           key. This made sense since the 'd' key is more likely to be used
+           compared to the 'D' key.
+7.2.4  - Fix:
+         * I did not implement the patch provided by Godefroid Chapelle
+           correctly. I missed one line which happened to be the most
+           important one :)
+7.2.3  - Enhancements:
+         * Thanks to David Fishburn for helping me out with a much needed
+           code overhaul as well as some awesome performance enhancements.
+           He also reworked the handling of tabs.
+         * Thanks to Vladimir Dobriakov for making the suggestions on
+           enhancing the documentation to include a better explaination of
+           what is contained in the main bufexplorer window.
+         * Thanks to Yuriy Ershov for added code that when the bufexplorer
+           window is opened, the cursor is now positioned at the line with the
+           active buffer (useful in non-MRU sort modes).
+         * Yuriy also added the abiltiy to cycle through the sort fields in
+           reverse order.
+         Fixes:
+         * Thanks to Michael Henry for supplying a patch that allows
+           bufexplorer to be opened even when there is one buffer or less.
+         * Thanks to Godefroid Chapelle for supplying a patch that fixed
+           MRU sort order after loading a session.
+7.2.2  - Fixes:
+         * Thanks to David L. Dight for spotting and fixing an issue when
+           using ctrl^. bufexplorer would incorrectly handle the previous
+           buffer so that when ctrl^ was pressed the incorrect file was opened.
+7.2.1  - Fixes:
+         * Thanks to Dimitar for spotting and fixing a feature that was
+           inadvertently left out of the previous version. The feature was
+           when bufexplorer was used together with WinManager, you could use
+           the tab key to open a buffer in a split window.
+7.2.0  - Enhancements:
+         * For all those missing the \bs and \bv commands, these have now
+           returned. Thanks to Phil O'Connell for asking for the return of
+           these missing features and helping test out this version.
+         Fixes:
+         * Fixed problem with the bufExplorerFindActive code not working
+           correctly.
+         * Fixed an incompatibility between bufexplorer and netrw that caused
+           buffers to be incorrectly removed from the MRU list.
+7.1.7  - Fixes:
+         * TaCahiroy fixed several issues related to opening a buffer in a
+           tab.
+7.1.6  - Fixes:
+         * Removed ff=unix from modeline in bufexplorer.txt. Found by Bill
+           McCarthy.
+7.1.5  - Fixes:
+         * Could not open unnamed buffers. Fixed by TaCahiroy.
+7.1.4  - Fixes:
+         * Sometimes when a file's path has 'white space' in it, extra buffers
+           would be created containing each piece of the path. i.e:
+           opening c:\document and settings\test.txt would create a buffer
+           named "and" and a buffer named "Documents". This was reported and
+           fixed by TaCa Yoss.
+7.1.3  - Fixes:
+         * Added code to allow only one instance of the plugin to run at a
+           time. Thanks Dennis Hostetler.
+7.1.2  - Fixes:
+         * Fixed a jumplist issue spotted by JiangJun. I overlooked the
+           'jumplist' and with a couple calls to 'keepjumps', everything is
+           fine again.
+         * Went back to just having a plugin file, no autoload file. By having
+           the autoload, WinManager was no longer working and without really
+           digging into the cause, it was easier to go back to using just a
+           plugin file.
+7.1.1  - Fixes:
+         * A problem spotted by Thomas Arendsen Hein.
+           When running Vim (7.1.94), error E493 was being thrown.
+         Enhancements:
+         * Added 'D' for 'delete' buffer as the 'd' command was a 'wipe'
+           buffer.
+7.1.0  - Another 'major' update, some by Dave Larson, some by me.
+         * Making use of 'autoload' now to make the plugin load quicker.
+         * Removed '\bs' and '\bv'. These are now controlled by the user. The
+           user can issue a ':sp' or ':vs' to create a horizontal or vertical
+           split window and then issue a '\be'
+         * Added handling of tabs.
+7.0.17 - Fixed issue with 'drop' command.
+         Various enhancements and improvements.
+7.0.16 - Fixed issue reported by Liu Jiaping on non Windows systems, which was
+         ...
+         Open file1, open file2, modify file1, open bufexplorer, you get the
+         following error:
+
+         --------8<--------
+         Error detected while processing function
+         <SNR>14_StartBufExplorer..<SNR>14_SplitOpen:
+         line    4:
+         E37: No write since last change (add ! to override)
+
+         But the worse thing is, when I want to save the current buffer and
+         type ':w', I get another error message:
+         E382: Cannot write, 'buftype' option is set 
+         --------8<--------
+
+7.0.15 - Thanks to Mark Smithfield for suggesting bufexplorer needed to handle
+         the ':args' command.
+7.0.14 - Thanks to Randall Hansen for removing the requirement of terminal
+         versions to be recompiled with 'gui' support so the 'drop' command
+         would work. The 'drop' command is really not needed in terminal
+         versions.
+7.0.13 - Fixed integration with WinManager.
+         Thanks to Dave Eggum for another update.
+           - Fix: The detailed help didn't display the mapping for toggling
+                  the split type, even though the split type is displayed.
+           - Fixed incorrect description in the detailed help for toggling
+             relative or full paths.
+           - Deprecated s:ExtractBufferNbr(). Vim's str2nr() does the same
+             thing.
+           - Created a s:Set() function that sets a variable only if it hasn't
+             already been defined. It's useful for initializing all those
+             default settings.
+           - Removed checks for repetitive command definitions. They were
+             unnecessary.
+           - Made the help highlighting a little more fancy.
+           - Minor reverse compatibility issue: Changed ambiguous setting
+             names to be more descriptive of what they do (also makes the code
+             easier to follow):
+               Changed bufExplorerSortDirection to bufExplorerReverseSort
+               Changed bufExplorerSplitType to bufExplorerSplitVertical
+               Changed bufExplorerOpenMode to bufExplorerUseCurrentWindow
+           - When the BufExplorer window closes, all the file-local marks are
+             now deleted. This may have the benefit of cleaning up some of the
+             jumplist.
+           - Changed the name of the parameter for StartBufExplorer from
+             "split" to "open". The parameter is a string which specifies how
+             the buffer will be open, not if it is split or not.
+           - Deprecated DoAnyMoreBuffersExist() - it is a one line function
+             only used in one spot.
+           - Created four functions (SplitOpen(), RebuildBufferList(),
+             UpdateHelpStatus() and ReSortListing()) all with one purpose - to
+             reduce repeated code.
+           - Changed the name of AddHeader() to CreateHelp() to be more
+             descriptive of what it does. It now returns an array instead of
+             updating the window directly. This has the benefit of making the
+             code more efficient since the text the function returns is used a
+             little differently in the two places the function is called.
+         - Other minor simplifications.
+7.0.12 - MAJOR Update.
+         This version will ONLY run with Vim version 7.0 or greater.
+         Dave Eggum has made some 'significant' updates to this latest
+         version:
+           - Added BufExplorerGetAltBuf() global function to be used in the
+             user’s rulerformat.
+           - Added g:bufExplorerSplitRight option.
+           - Added g:bufExplorerShowRelativePath option with mapping.
+           - Added current line highlighting.
+           - The split type can now be changed whether bufexplorer is opened
+             in split mode or not.
+           - Various major and minor bug fixes and speed improvements.
+           - Sort by extension.
+         Other improvements/changes:
+           - Changed the help key from '?' to <F1> to be more 'standard'.
+           - Fixed splitting of vertical bufexplorer window.
+         Hopefully I have not forgot something :)
+7.0.11 - Fixed a couple of highlighting bugs, reported by David Eggum. He also
+         changed passive voice to active on a couple of warning messages.
+7.0.10 - Fixed bug report by Xiangjiang Ma. If the 'ssl' option is set,
+         the slash character used when displaying the path was incorrect.
+7.0.9  - Martin Grenfell found and eliminated an annoying bug in the
+         bufexplorer/winmanager integration. The bug was were an
+         annoying message would be displayed when a window was split or
+         a new file was opened in a new window. Thanks Martin!
+7.0.8  - Thanks to Mike Li for catching a bug in the WinManager integration.
+         The bug was related to the incorrect displaying of the buffer
+         explorer's window title.
+7.0.7  - Thanks to Jeremy Cowgar for adding a new enhancement. This
+         enhancement allows the user to press 'S', that is capital S, which
+         will open the buffer under the cursor in a newly created split
+         window.
+7.0.6  - Thanks to Larry Zhang for finding a bug in the "split" buffer code.
+         If you force set g:bufExplorerSplitType='v' in your vimrc, and if you
+         tried to do a \bs to split the bufexplorer window, it would always
+         split horizontal, not vertical. He also found that I had a typeo in
+         that the variable g:bufExplorerSplitVertSize was all lower case in
+         the documentation which was incorrect.
+7.0.5  - Thanks to Mun Johl for pointing out a bug that if a buffer was
+         modified, the '+' was not showing up correctly.
+7.0.4  - Fixed a problem discovered first by Xiangjiang Ma. Well since I've
+         been using vim 7.0 and not 6.3, I started using a function (getftype)
+         that is not in 6.3. So for backward compatibility, I conditionaly use
+         this function now.  Thus, the g:bufExplorerShowDirectories feature is
+         only available when using vim 7.0 and above.
+7.0.3  - Thanks to Erwin Waterlander for finding a problem when the last
+         buffer was deleted. This issue got me to rewrite the buffer display
+         logic (which I've wanted to do for sometime now).
+         Also great thanks to Dave Eggum for coming up with idea for
+         g:bufExplorerShowDirectories. Read the above information about this
+         feature.
+7.0.2  - Thanks to Thomas Arendsen Hein for finding a problem when a user
+         has the default help turned off and then brought up the explorer. An
+         E493 would be displayed.
+7.0.1  - Thanks to Erwin Waterlander for finding a couple problems.
+         The first problem allowed a modified buffer to be deleted.  Opps! The
+         second problem occurred when several files were opened, BufExplorer
+         was started, the current buffer was deleted using the 'd' option, and
+         then BufExplorer was exited. The deleted buffer was still visible
+         while it is not in the buffers list. Opps again!
+7.0.0  - Thanks to Shankar R. for suggesting to add the ability to set
+         the fixed width (g:bufExplorerSplitVertSize) of a new window
+         when opening bufexplorer vertically and fixed height
+         (g:bufExplorerSplitHorzSize) of a new window when opening
+         bufexplorer horizontally. By default, the windows are normally
+         split to use half the existing width or height.
+6.3.0  - Added keepjumps so that the jumps list would not get cluttered with
+         bufexplorer related stuff.
+6.2.3  - Thanks to Jay Logan for finding a bug in the vertical split position
+         of the code. When selecting that the window was to be split
+         vertically by doing a '\bv', from then on, all splits, i.e. '\bs',
+         were split vertically, even though g:bufExplorerSplitType was not set
+         to 'v'.
+6.2.2  - Thanks to Patrik Modesto for adding a small improvement. For some
+         reason his bufexplorer window was always showing up folded. He added
+         'setlocal nofoldenable' and it was fixed.
+6.2.1  - Thanks goes out to Takashi Matsuo for added the 'fullPath' sorting
+         logic and option.
+6.2.0  - Thanks goes out to Simon Johann-Ganter for spotting and fixing a
+         problem in that the last search pattern is overridden by the search
+         pattern for blank lines.
+6.1.6  - Thanks to Artem Chuprina for finding a pesky bug that has been around
+         for sometime now. The <esc> key mapping was causing the buffer
+         explored to close prematurely when vim was run in an xterm. The <esc>
+         key mapping is now removed.
+6.1.5  - Thanks to Khorev Sergey. Added option to show default help or not.
+6.1.4  - Thanks goes out to Valery Kondakoff for suggesting the addition of
+         setlocal nonumber and foldcolumn=0. This allows for line numbering
+         and folding to be turned off temporarily while in the explorer.
+6.1.3  - Added folding. Did some code cleanup. Added the ability to force the
+         newly split window to be temporarily vertical, which was suggested by
+         Thomas Glanzmann.
+6.1.2  - Now pressing the <esc> key will quit, just like 'q'.
+         Added folds to hide winmanager configuration.
+         If anyone had the 'C' option in their cpoptions they would receive
+         a E10 error on startup of BufExplorer. cpo is now saved, updated and
+         restored. Thanks to Charles E Campbell, Jr.
+         Attempted to make sure there can only be one BufExplorer window open
+         at a time.
+6.1.1  - Thanks to Brian D. Goodwin for adding toupper to FileNameCmp. This
+         way buffers sorted by name will be in the correct order regardless of
+         case.
+6.0.16 - Thanks to Andre Pang for the original patch/idea to get bufexplorer
+         to work in insertmode/modeless mode (evim). Added Initialize
+         and Cleanup autocommands to handle commands that need to be
+         performed when starting or leaving bufexplorer.
+6.0.15 - Srinath Avadhanulax added a patch for winmanager.vim.
+6.0.14 - Fix a few more bug that I thought I already had fixed. Thanks
+         to Eric Bloodworth for adding 'Open Mode/Edit in Place'. Added
+         vertical splitting.
+6.0.13 - Thanks to Charles E Campbell, Jr. for pointing out some embarrassing
+         typos that I had in the documentation. I guess I need to run
+         the spell checker more :o)
+6.0.12 - Thanks to Madoka Machitani, for the tip on adding the augroup command
+         around the MRUList autocommands.
+6.0.11 - Fixed bug report by Xiangjiang Ma. '"=' was being added to the
+         search history which messed up hlsearch.
+6.0.10 - Added the necessary hooks so that the Srinath Avadhanula's
+         winmanager.vim script could more easily integrate with this script.
+         Tried to improve performance.
+6.0.9  - Added MRU (Most Recently Used) sort ordering.
+6.0.8  - Was not resetting the showcmd command correctly.
+         Added nifty help file.
+6.0.7  - Thanks to Brett Carlane for some great enhancements. Some are added,
+         some are not, yet. Added highlighting of current and alternate
+         filenames. Added splitting of path/filename toggle. Reworked
+         ShowBuffers().
+         Changed my email address.
+6.0.6  - Copyright notice added. Needed this so that it could be distributed
+         with Debian Linux. Fixed problem with the SortListing() function
+         failing when there was only one buffer to display.
+6.0.5  - Fixed problems reported by David Pascoe, in that you where unable to
+         hit 'd' on a buffer that belonged to a files that no longer existed
+         and that the 'yank' buffer was being overridden by the help text when
+         the bufexplorer was opened.
+6.0.4  - Thanks to Charles Campbell, Jr. for making this plugin more plugin
+         *compliant*, adding default keymappings of <Leader>be and <Leader>bs
+         as well as fixing the 'w:sortDirLabel not being defined' bug.
+6.0.3  - Added sorting capabilities. Sort taken from explorer.vim.
+6.0.2  - Can't remember. (2001-07-25)
+6.0.1  - Initial release.
+
+===============================================================================
+TODO                                                         *bufexplorer-todo*
+
+- Nothing as of now, buf if you have any suggestions, drop me an email.
+
+===============================================================================
+CREDITS                                                   *bufexplorer-credits*
+
+Author: Jeff Lanzarotta <delux256-vim at yahoo dot com>
+
+Credit must go out to Bram Moolenaar and all the Vim developers for
+making the world's best editor (IMHO). I also want to thank everyone who
+helped and gave me suggestions. I wouldn't want to leave anyone out so I
+won't list names.
+
+===============================================================================
+vim:tw=78:noet:wrap:ts=8:ft=help:norl:
diff --git a/vim/plugin/bufexplorer.vim b/vim/plugin/bufexplorer.vim
new file mode 100755
index 0000000..8791363
--- /dev/null
+++ b/vim/plugin/bufexplorer.vim
@@ -0,0 +1,1162 @@
+"==============================================================================
+"    Copyright: Copyright (C) 2001-2010 Jeff Lanzarotta
+"               Permission is hereby granted to use and distribute this code,
+"               with or without modifications, provided that this copyright
+"               notice is copied with it. Like anything else that's free,
+"               bufexplorer.vim is provided *as is* and comes with no
+"               warranty of any kind, either expressed or implied. In no
+"               event will the copyright holder be liable for any damages
+"               resulting from the use of this software.
+" Name Of File: bufexplorer.vim
+"  Description: Buffer Explorer Vim Plugin
+"   Maintainer: Jeff Lanzarotta (delux256-vim at yahoo dot com)
+" Last Changed: Friday, 22 October 2010
+"      Version: See g:bufexplorer_version for version number.
+"        Usage: This file should reside in the plugin directory and be
+"               automatically sourced.
+"
+"               You may use the default keymappings of
+"
+"                 <Leader>be  - Opens BE.
+"                 <Leader>bs  - Opens horizontally window BE.
+"                 <Leader>bv  - Opens vertically window BE.
+"
+"               Or you can use
+"
+"                 ":BufExplorer"                - Opens BE.
+"                 ":BufExplorerHorizontalSplit" - Opens horizontally window BE.
+"                 ":BufExplorerVerticalSplit"   - Opens vertically window BE.
+"
+"               For more help see supplied documentation.
+"      History: See supplied documentation.
+"==============================================================================
+
+" Exit quickly if already running or when 'compatible' is set. {{{1
+if exists("g:bufexplorer_version") || &cp
+  finish
+endif
+"1}}}
+
+" Version number
+let g:bufexplorer_version = "7.2.8"
+
+" Check for Vim version 700 or greater {{{1
+if v:version < 700
+  echo "Sorry, bufexplorer ".g:bufexplorer_version."\nONLY runs with Vim 7.0 and greater."
+  finish
+endif
+
+" Public Interface {{{1
+if maparg("<Leader>be") =~ 'BufExplorer'
+  nunmap <Leader>be
+endif
+
+if maparg("<Leader>bs") =~ 'BufExplorerHorizontalSplit'
+  nunmap <Leader>bs
+endif
+
+if maparg("<Leader>bv") =~ 'BufExplorerVerticalSplit'
+  nunmap <Leader>bv
+endif
+
+nmap <script> <silent> <unique> <Leader>be :BufExplorer<CR>
+nmap <script> <silent> <unique> <Leader>bs :BufExplorerHorizontalSplit<CR>
+nmap <script> <silent> <unique> <Leader>bv :BufExplorerVerticalSplit<CR>
+
+" Create commands {{{1
+command! BufExplorer :call StartBufExplorer(has ("gui") ? "drop" : "hide edit")
+command! BufExplorerHorizontalSplit :call BufExplorerHorizontalSplit()
+command! BufExplorerVerticalSplit :call BufExplorerVerticalSplit()
+
+" BESet {{{1
+function! s:BESet(var, default)
+  if !exists(a:var)
+    if type(a:default)
+      exec "let" a:var "=" string(a:default)
+    else
+      exec "let" a:var "=" a:default
+    endif
+
+    return 1
+  endif
+
+  return 0
+endfunction
+
+" BEReset {{{1
+function! s:BEReset()
+  " Build initial MRUList. This makes sure all the files specified on the
+  " command line are picked up correctly.
+  let s:MRUList = range(1, bufnr('$'))
+
+  " Initialize one tab space array, ignore zero-based tabpagenr
+  " since all tabpagenr's start at 1.
+  " -1 signifies this is the first time we are referencing this
+  " tabpagenr.
+  let s:tabSpace = [ [-1], [-1] ]
+endfunction
+
+" Setup the autocommands that handle the MRUList and other stuff. {{{1
+" This is only done once when Vim starts up.
+augroup BufExplorerVimEnter
+  autocmd!
+  autocmd VimEnter * call s:BESetup()
+augroup END
+
+" BESetup {{{1
+function! s:BESetup()
+  call s:BEReset()
+
+  " Now that the MRUList is created, add the other autocmds.
+  augroup BufExplorer
+    " Deleting autocommands in case the script is reloaded
+    autocmd!
+    autocmd TabEnter * call s:BETabEnter()
+    autocmd BufNew * call s:BEAddBuffer()
+    autocmd BufEnter * call s:BEActivateBuffer()
+
+    autocmd BufWipeOut * call s:BEDeactivateBuffer(1)
+    autocmd BufDelete * call s:BEDeactivateBuffer(0)
+
+    autocmd BufWinEnter \[BufExplorer\] call s:BEInitialize()
+    autocmd BufWinLeave \[BufExplorer\] call s:BECleanup()
+    autocmd SessionLoadPost * call s:BEReset()
+  augroup END
+
+  " Remove the VimEnter event as it is no longer needed
+  augroup SelectBufVimEnter
+    autocmd!
+  augroup END
+endfunction
+
+" BETabEnter {{{1
+function! s:BETabEnter()
+  " Make s:tabSpace 1-based
+  if empty(s:tabSpace) || len(s:tabSpace) < (tabpagenr() + 1)
+    call add(s:tabSpace, [-1])
+  endif
+endfunction
+
+" BEAddBuffer {{{1
+function! s:BEAddBuffer()
+  if !exists('s:raw_buffer_listing') || empty(s:raw_buffer_listing)
+    silent let s:raw_buffer_listing = s:BEGetBufferInfo(0)
+  else
+    " We cannot use :buffers! or :ls! to gather information 
+    " about this buffer since it was only just added.
+    " Any changes to the buffer (setlocal buftype, ...) 
+    " happens after this event fires.
+    "
+    " So we will indicate the :buffers! command must be re-run.
+    " This should help with the performance of the plugin.
+
+    " There are some checks which can be performed 
+    " before deciding to refresh the buffer list.
+    let bufnr = expand('<abuf>') + 0
+
+    if s:BEIgnoreBuffer(bufnr) == 1
+      return 
+    else
+      let s:refreshBufferList = 1
+    endif
+  endif
+
+  call s:BEActivateBuffer()
+endfunction
+
+" ActivateBuffer {{{1
+function! s:BEActivateBuffer()
+  let b = bufnr("%")
+  let l = get(s:tabSpace, tabpagenr(), [])
+
+  if s:BEIgnoreBuffer(b) == 1
+    return
+  endif
+
+  if !empty(l) && l[0] == '-1'
+    " The first time we add a tab Vim uses the current 
+    " buffer as it's starting page, even though we are about
+    " to edit a new page (BufEnter triggers after), so
+    " remove the -1 entry indicating we have covered this case.
+    let l = []
+    let s:tabSpace[tabpagenr()] = l
+  elseif empty(l) || index(l, b) == -1
+    " Add new buffer to this tab buffer list
+    let l = add(l, b)
+    let s:tabSpace[tabpagenr()] = l
+
+    if g:bufExplorerOnlyOneTab == 1
+      " If a buffer can only be available in 1 tab page
+      " ensure this buffer is not present in any other tabs
+      let tabidx = 1
+      while tabidx < len(s:tabSpace)
+        if tabidx != tabpagenr()
+          let bufidx = index(s:tabSpace[tabidx], b)
+          if bufidx != -1
+            call remove(s:tabSpace[tabidx], bufidx)
+          endif
+        endif
+        let tabidx = tabidx + 1
+      endwhile
+    endif
+  endif
+
+  call s:BEMRUPush(b)
+
+  if exists('s:raw_buffer_listing') && !empty(s:raw_buffer_listing)
+    " Check if the buffer exists, but was deleted previously
+    " Careful use of ' and " so we do not have to escape all the \'s
+    " Regex: ^\s*bu\>
+    "        ^ - Starting at the beginning of the string
+    "        \s* - optional whitespace
+    "        b - Vim's buffer number
+    "        u\> - the buffer must be unlisted
+    let shortlist = filter(copy(s:raw_buffer_listing), "v:val.attributes =~ '".'^\s*'.b.'u\>'."'")
+
+    if !empty(shortlist)
+      " If it is unlisted (ie deleted), but now we editing it again 
+      " rebuild the buffer list.
+      let s:refreshBufferList = 1
+    endif
+  endif
+endfunction
+
+" BEDeactivateBuffer {{{1
+function! s:BEDeactivateBuffer(remove)
+  let _bufnr = str2nr(expand("<abuf>"))
+
+  call s:BEMRUPop(_bufnr)
+
+  if a:remove
+    call s:BEDeleteBufferListing(_bufnr)
+  else
+    let s:refreshBufferList = 1
+  endif
+endfunction
+
+" BEMRUPop {{{1
+function! s:BEMRUPop(buf)
+  call filter(s:MRUList, 'v:val != '.a:buf)
+endfunction
+
+" BEMRUPush {{{1
+function! s:BEMRUPush(buf)
+  if s:BEIgnoreBuffer(a:buf) == 1
+    return
+  endif
+
+  " Remove the buffer number from the list if it already exists.
+  call s:BEMRUPop(a:buf)
+
+  " Add the buffer number to the head of the list.
+  call insert(s:MRUList,a:buf)
+endfunction
+
+" BEInitialize {{{1
+function! s:BEInitialize()
+  let s:_insertmode = &insertmode
+  set noinsertmode
+
+  let s:_showcmd = &showcmd
+  set noshowcmd
+
+  let s:_cpo = &cpo
+  set cpo&vim
+
+  let s:_report = &report
+  let &report = 10000
+
+  let s:_list = &list
+  set nolist
+
+  setlocal nonumber
+  setlocal foldcolumn=0
+  setlocal nofoldenable
+  setlocal cursorline
+  setlocal nospell
+  setlocal nobuflisted
+
+  let s:running = 1
+endfunction
+
+" BEIgnoreBuffer 
+function! s:BEIgnoreBuffer(buf)
+  " Check to see if this buffer should be ignore by BufExplorer.
+
+  " Skip temporary buffers with buftype set.
+  if empty(getbufvar(a:buf, "&buftype") == 0)
+    return 1
+  endif
+
+  " Skip unlisted buffers.
+  if buflisted(a:buf) == 0
+    return 1
+  endif
+
+  " Skip buffers with no name.
+  if empty(bufname(a:buf)) == 1
+    return 1
+  endif
+
+  " Do not add the BufExplorer window to the list.
+  if fnamemodify(bufname(a:buf), ":t") == s:name
+    call s:BEError("The buffer name was [".s:name."] so it was skipped.")
+    return 1
+  endif
+
+  if index(s:MRU_Exclude_List, bufname(a:buf)) >= 0
+    return 1
+  end
+
+  return 0 
+endfunction
+
+" BECleanup {{{1
+function! s:BECleanup()
+  if exists("s:_insertmode")|let &insertmode = s:_insertmode|endif
+  if exists("s:_showcmd")   |let &showcmd    = s:_showcmd   |endif
+  if exists("s:_cpo")       |let &cpo        = s:_cpo       |endif
+  if exists("s:_report")    |let &report     = s:_report    |endif
+  if exists("s:_list")      |let &list       = s:_list      |endif
+  let s:running   = 0
+  let s:splitMode = ""
+
+  delmarks!
+endfunction
+
+" BufExplorerHorizontalSplit {{{1
+function! BufExplorerHorizontalSplit()
+  let s:splitMode = "sp"
+  exec "BufExplorer"
+endfunction
+
+" BufExplorerVerticalSplit {{{1
+function! BufExplorerVerticalSplit()
+  let s:splitMode = "vsp"
+  exec "BufExplorer"
+endfunction
+
+" StartBufExplorer {{{1
+function! StartBufExplorer(open)
+    let name = s:name
+
+    if !has("win32")
+        " On non-Windows boxes, escape the name so that is shows up correctly.
+        let name = escape(name, "[]")
+        call s:BEError("Escaped")
+    endif
+
+    " Make sure there is only one explorer open at a time.
+    if s:running == 1
+        call s:BEError("WHAT THE 1")
+        " Go to the open buffer.
+        if has("gui")
+            call s:BEError("WHAT THE 2")
+            call s:BEError(name)
+            exec "drop" name
+        endif
+
+        return
+    endif
+
+    " Add zero to ensure the variable is treated as a Number.
+    let s:originBuffer = bufnr("%") + 0
+
+    " Create or rebuild the raw buffer list if necessary.
+    if !exists('s:raw_buffer_listing') || 
+            \ empty(s:raw_buffer_listing) ||
+            \ s:refreshBufferList == 1
+        silent let s:raw_buffer_listing = s:BEGetBufferInfo(0)
+    endif
+
+    let copy = copy(s:raw_buffer_listing)
+
+    if (g:bufExplorerShowUnlisted == 0)
+        call filter(copy, 'v:val.attributes !~ "u"')
+    endif
+
+  " We may have to split the current window.
+  if (s:splitMode != "")
+    " Save off the original settings.
+    let [_splitbelow, _splitright] = [&splitbelow, &splitright]
+
+    " Set the setting to ours.
+    let [&splitbelow, &splitright] = [g:bufExplorerSplitBelow, g:bufExplorerSplitRight]
+
+    " Do it.
+    exe 'keepalt '.s:splitMode
+
+    " Restore the original settings.
+    let [&splitbelow, &splitright] = [_splitbelow, _splitright]
+  endif
+
+  if !exists("b:displayMode") || b:displayMode != "winmanager"
+    " Do not use keepalt when opening bufexplorer to allow the buffer that we are
+    " leaving to become the new alternate buffer
+    exec "silent keepjumps ".a:open." ".name
+  endif
+
+  call s:BEDisplayBufferList()
+endfunction
+
+" BEDisplayBufferList {{{1
+function! s:BEDisplayBufferList()
+  " Do not set bufhidden since it wipes out 
+  " the data if we switch away from the buffer 
+  " using CTRL-^
+  setlocal buftype=nofile
+  setlocal modifiable
+  setlocal noswapfile
+  setlocal nowrap
+
+  " Delete all previous lines to the black hole register
+  call cursor(1,1)
+  exec 'silent! normal! "_dG'
+
+  call s:BESetupSyntax()
+  call s:BEMapKeys()
+  call setline(1, s:BECreateHelp())
+  call s:BEBuildBufferList()
+  call cursor(s:firstBufferLine, 1)
+
+  if !g:bufExplorerResize
+    normal! zz
+  endif
+
+  setlocal nomodifiable
+endfunction
+
+" BEMapKeys {{{1
+function! s:BEMapKeys()
+  if exists("b:displayMode") && b:displayMode == "winmanager"
+    nnoremap <buffer> <silent> <tab> :call <SID>BESelectBuffer("tab")<cr>
+  endif
+
+  nnoremap <buffer> <silent> <F1>          :call <SID>BEToggleHelp()<cr>
+  nnoremap <buffer> <silent> <2-leftmouse> :call <SID>BESelectBuffer()<cr>
+  nnoremap <buffer> <silent> <cr>          :call <SID>BESelectBuffer()<cr>
+  nnoremap <buffer> <silent> o             :call <SID>BESelectBuffer()<cr>
+  nnoremap <buffer> <silent> t             :call <SID>BESelectBuffer("tab")<cr>
+  nnoremap <buffer> <silent> <s-cr>        :call <SID>BESelectBuffer("tab")<cr>
+
+  nnoremap <buffer> <silent> d             :call <SID>BERemoveBuffer("delete", "n")<cr>
+  xnoremap <buffer> <silent> d             :call <SID>BERemoveBuffer("delete", "v")<cr>
+  nnoremap <buffer> <silent> D             :call <SID>BERemoveBuffer("wipe", "n")<cr>
+  xnoremap <buffer> <silent> D             :call <SID>BERemoveBuffer("wipe", "v")<cr>
+
+  nnoremap <buffer> <silent> m             :call <SID>BEMRUListShow()<cr>
+  nnoremap <buffer> <silent> p             :call <SID>BEToggleSplitOutPathName()<cr>
+  nnoremap <buffer> <silent> q             :call <SID>BEClose("quit")<cr>
+  nnoremap <buffer> <silent> r             :call <SID>BESortReverse()<cr>
+  nnoremap <buffer> <silent> R             :call <SID>BEToggleShowRelativePath()<cr>
+  nnoremap <buffer> <silent> s             :call <SID>BESortSelect()<cr>
+  nnoremap <buffer> <silent> S             :call <SID>BEReverseSortSelect()<cr>
+  nnoremap <buffer> <silent> u             :call <SID>BEToggleShowUnlisted()<cr>
+  nnoremap <buffer> <silent> f             :call <SID>BEToggleFindActive()<cr>
+  nnoremap <buffer> <silent> T             :call <SID>BEToggleShowTabBuffer()<cr>
+  nnoremap <buffer> <silent> B             :call <SID>BEToggleOnlyOneTab()<cr>
+
+  for k in ["G", "n", "N", "L", "M", "H"]
+    exec "nnoremap <buffer> <silent>" k ":keepjumps normal!" k."<cr>"
+  endfor
+endfunction
+
+" BESetupSyntax {{{1
+function! s:BESetupSyntax()
+  if has("syntax")
+    syn match bufExplorerHelp         "^\".*" contains=bufExplorerSortBy,bufExplorerMapping,bufExplorerTitle,bufExplorerSortType,bufExplorerToggleSplit,bufExplorerToggleOpen
+    syn match bufExplorerOpenIn       "Open in \w\+ window" contained
+    syn match bufExplorerSplit        "\w\+ split" contained
+    syn match bufExplorerSortBy       "Sorted by .*" contained contains=bufExplorerOpenIn,bufExplorerSplit
+    syn match bufExplorerMapping      "\" \zs.\+\ze :" contained
+    syn match bufExplorerTitle        "Buffer Explorer.*" contained
+    syn match bufExplorerSortType     "'\w\{-}'" contained
+    syn match bufExplorerBufNbr       /^\s*\d\+/
+    syn match bufExplorerToggleSplit  "toggle split type" contained
+    syn match bufExplorerToggleOpen   "toggle open mode" contained
+    syn match bufExplorerModBuf       /^\s*\d\+.\{4}+.*/
+    syn match bufExplorerLockedBuf    /^\s*\d\+.\{3}[\-=].*/
+    syn match bufExplorerHidBuf       /^\s*\d\+.\{2}h.*/
+    syn match bufExplorerActBuf       /^\s*\d\+.\{2}a.*/
+    syn match bufExplorerCurBuf       /^\s*\d\+.%.*/
+    syn match bufExplorerAltBuf       /^\s*\d\+.#.*/
+    syn match bufExplorerUnlBuf       /^\s*\d\+u.*/
+
+    hi def link bufExplorerBufNbr Number
+    hi def link bufExplorerMapping NonText
+    hi def link bufExplorerHelp Special
+    hi def link bufExplorerOpenIn Identifier
+    hi def link bufExplorerSortBy String
+    hi def link bufExplorerSplit NonText
+    hi def link bufExplorerTitle NonText
+    hi def link bufExplorerSortType bufExplorerSortBy
+    hi def link bufExplorerToggleSplit bufExplorerSplit
+    hi def link bufExplorerToggleOpen bufExplorerOpenIn
+
+    hi def link bufExplorerActBuf Identifier
+    hi def link bufExplorerAltBuf String
+    hi def link bufExplorerCurBuf Type
+    hi def link bufExplorerHidBuf Constant
+    hi def link bufExplorerLockedBuf Special
+    hi def link bufExplorerModBuf Exception
+    hi def link bufExplorerUnlBuf Comment
+  endif
+endfunction
+
+" BEToggleHelp {{{1
+function! s:BEToggleHelp()
+  let g:bufExplorerDetailedHelp = !g:bufExplorerDetailedHelp
+
+  setlocal modifiable
+
+  " Save position.
+  normal! ma
+
+  " Remove old header.
+  if (s:firstBufferLine > 1)
+    exec "keepjumps 1,".(s:firstBufferLine - 1) "d _"
+  endif
+
+  call append(0, s:BECreateHelp())
+
+  silent! normal! g`a
+  delmarks a
+
+  setlocal nomodifiable
+
+  if exists("b:displayMode") && b:displayMode == "winmanager"
+    call WinManagerForceReSize("BufExplorer")
+  endif
+endfunction
+
+" BEGetHelpStatus {{{1
+function! s:BEGetHelpStatus()
+  let ret = '" Sorted by '.((g:bufExplorerReverseSort == 1) ? "reverse " : "").g:bufExplorerSortBy
+  let ret .= ' | '.((g:bufExplorerFindActive == 0) ? "Don't " : "")."Locate buffer"
+  let ret .= ((g:bufExplorerShowUnlisted == 0) ? "" : " | Show unlisted")
+  let ret .= ((g:bufExplorerShowTabBuffer == 0) ? "" : " | Show buffers/tab")
+  let ret .= ((g:bufExplorerOnlyOneTab == 1) ? "" : " | One tab / buffer")
+  let ret .= ' | '.((g:bufExplorerShowRelativePath == 0) ? "Absolute" : "Relative")
+  let ret .= ' '.((g:bufExplorerSplitOutPathName == 0) ? "Full" : "Split")." path"
+
+  return ret
+endfunction
+
+" BECreateHelp {{{1
+function! s:BECreateHelp()
+  if g:bufExplorerDefaultHelp == 0 && g:bufExplorerDetailedHelp == 0
+    let s:firstBufferLine = 1
+    return []
+  endif
+
+  let header = []
+
+  if g:bufExplorerDetailedHelp == 1
+    call add(header, '" Buffer Explorer ('.g:bufexplorer_version.')')
+    call add(header, '" --------------------------')
+    call add(header, '" <F1> : toggle this help')
+    call add(header, '" <enter> or o or Mouse-Double-Click : open buffer under cursor')
+    call add(header, '" <shift-enter> or t : open buffer in another tab')
+    call add(header, '" d : delete buffer')
+    call add(header, '" D : wipe buffer')
+    call add(header, '" f : toggle find active buffer')
+    call add(header, '" p : toggle spliting of file and path name')
+    call add(header, '" q : quit')
+    call add(header, '" r : reverse sort')
+    call add(header, '" R : toggle showing relative or full paths')
+    call add(header, '" s : cycle thru "sort by" fields '.string(s:sort_by).'')
+    call add(header, '" S : reverse cycle thru "sort by" fields')
+    call add(header, '" T : toggle if to show only buffers for this tab or not')
+    call add(header, '" u : toggle showing unlisted buffers')
+  else
+    call add(header, '" Press <F1> for Help')
+  endif
+
+  if (!exists("b:displayMode") || b:displayMode != "winmanager") || (b:displayMode == "winmanager" && g:bufExplorerDetailedHelp == 1)
+    call add(header, s:BEGetHelpStatus())
+    call add(header, '"=')
+  endif
+
+  let s:firstBufferLine = len(header) + 1
+
+  return header
+endfunction
+
+" BEGetBufferInfo {{{1
+function! s:BEGetBufferInfo(bufnr)
+  redir => bufoutput
+  buffers!
+  redir END
+
+  if (a:bufnr > 0)
+    " Since we are only interested in this specified buffer 
+    " remove the other buffers listed
+    let bufoutput = substitute(bufoutput."\n", '^.*\n\(\s*'.a:bufnr.'\>.\{-}\)\n.*', '\1', '')
+  endif
+
+  let [all, allwidths, listedwidths] = [[], {}, {}]
+
+  for n in keys(s:types)
+    let allwidths[n] = []
+    let listedwidths[n] = []
+  endfor
+
+  for buf in split(bufoutput, '\n')
+    let bits = split(buf, '"')
+    let b = {"attributes": bits[0], "line": substitute(bits[2], '\s*', '', '')}
+
+    for [key, val] in items(s:types)
+      let b[key] = fnamemodify(bits[1], val)
+    endfor
+
+    if getftype(b.fullname) == "dir" && g:bufExplorerShowDirectories == 1
+      let b.shortname = "<DIRECTORY>"
+    endif
+
+    call add(all, b)
+
+    for n in keys(s:types)
+      call add(allwidths[n], len(b[n]))
+
+      if b.attributes !~ "u"
+        call add(listedwidths[n], len(b[n]))
+      endif
+    endfor
+  endfor
+
+  let [s:allpads, s:listedpads] = [{}, {}]
+
+  for n in keys(s:types)
+    let s:allpads[n] = repeat(' ', max(allwidths[n]))
+    let s:listedpads[n] = repeat(' ', max(listedwidths[n]))
+  endfor
+
+  let s:refreshBufferList = 1
+
+  return all
+endfunction
+
+" BEBuildBufferList {{{1
+function! s:BEBuildBufferList()
+    let lines = []
+
+    " Loop through every buffer.
+    for buf in s:raw_buffer_listing
+        " Skip unlisted buffers if we are not to show them.
+        if (!g:bufExplorerShowUnlisted && buf.attributes =~ "u")
+            continue
+        endif
+
+        if (g:bufExplorerShowTabBuffer)
+            let show_buffer = 0
+
+            for bufnr in s:tabSpace[tabpagenr()]
+                if (buf.attributes =~ '^\s*'.bufnr.'\>')
+                    " Only buffers shown on the current tabpagenr
+                    let show_buffer = 1
+                    break
+                endif
+            endfor
+
+            if show_buffer == 0 
+                continue
+            endif
+        endif
+
+        let line = buf.attributes." "
+
+        if g:bufExplorerSplitOutPathName
+            let type = (g:bufExplorerShowRelativePath) ? "relativepath" : "path"
+            let path = buf[type]
+            let pad  = (g:bufExplorerShowUnlisted) ? s:allpads.shortname : s:listedpads.shortname
+            let line .= buf.shortname." ".strpart(pad.path, len(buf.shortname))
+        else
+            let type = (g:bufExplorerShowRelativePath) ? "relativename" : "fullname"
+            let path = buf[type]
+            let line .= path
+        endif
+
+        let pads = (g:bufExplorerShowUnlisted) ? s:allpads : s:listedpads
+
+        if !empty(pads[type])
+            let line .= strpart(pads[type], len(path))." "
+        endif
+
+        let line .= buf.line
+
+        call add(lines, line)
+    endfor
+
+    call setline(s:firstBufferLine, lines)
+
+    call s:BESortListing()
+endfunction
+
+" BESelectBuffer {{{1
+function! s:BESelectBuffer(...)
+  " Sometimes messages are not cleared when we get here so it looks like an error has
+  " occurred when it really has not.
+  echo ""
+
+  " Are we on a line with a file name?
+  if line('.') < s:firstBufferLine
+    exec "normal! \<cr>"
+    return
+  endif
+
+  let _bufNbr = str2nr(getline('.'))
+
+  " Check and see if we are running BE via WinManager.
+  if exists("b:displayMode") && b:displayMode == "winmanager"
+    let bufname = expand("#"._bufNbr.":p")
+
+    if (a:0 == 1) && (a:1 == "tab")
+      call WinManagerFileEdit(bufname, 1)
+    else
+      call WinManagerFileEdit(bufname, 0)
+    endif
+ 
+    return
+  endif
+
+  if bufexists(_bufNbr)
+    if bufnr("#") == _bufNbr && !exists("g:bufExplorerChgWin")
+      return s:BEClose("")
+    endif
+
+    " Are we suppose to open the selected buffer in a tab?
+    if (a:0 == 1) && (a:1 == "tab")
+      " Yes, we are to open the selected buffer in a tab.
+
+      " Restore [BufExplorer] buffer.
+      exec "keepjumps silent buffer!".s:originBuffer
+
+      " Get the tab number where this buffer is located at.
+      let tabNbr = s:BEGetTabNbr(_bufNbr)
+
+      " Was the tab found?
+      if tabNbr == 0
+        " _bufNbr is not opened in any tabs. Open a new tab with the selected buffer in it.
+        exec "999tab split +buffer" . _bufNbr
+      else
+        " The _bufNbr is already opened in tab, go to that tab.
+        exec tabNbr . "tabnext"
+
+        " Focus window.
+        exec s:BEGetWinNbr(tabNbr, _bufNbr) . "wincmd w"
+      endif
+    else
+        "No, the use did not ask to open the selected buffer in a tab.
+
+        " Are we suppose to move to the tab where this active buffer is?
+        if exists("g:bufExplorerChgWin")
+ 	        exe g:bufExplorerChgWin."wincmd w"
+ 	    elseif bufloaded(_bufNbr) && g:bufExplorerFindActive
+            " Close the BE window.
+            call s:BEClose("")
+
+        " Get the tab number where this buffer is located at.
+        let tabNbr = s:BEGetTabNbr(_bufNbr)
+
+        " Was the tab found?
+        if tabNbr != 0
+          " The buffer is located in a tab. Go to that tab number.
+          exec tabNbr . "tabnext"
+        else
+          " Nope, the buffer is not in a tab, simple switch to that buffer.
+          let bufname = expand("#"._bufNbr.":p")
+          exec bufname ? "drop ".escape(bufname, " ") : "buffer "._bufNbr
+        endif
+      endif
+
+      " Switch to the buffer.
+      exec "keepalt keepjumps silent b!" _bufNbr
+    endif
+
+    " Make the buffer 'listed' again.
+    call setbufvar(_bufNbr, "&buflisted", "1")
+ 
+ 	" call any associated function references
+ 	" g:bufExplorerFuncRef may be an individual function reference
+ 	"                or it may be a list containing function references.
+ 	" It will ignore anything that's not a function reference.
+ 	" See  :help FuncRef  for more on function references.
+ 	if exists("g:BufExplorerFuncRef")
+ 	  if type(g:BufExplorerFuncRef) == 2
+ 	    keepj call g:BufExplorerFuncRef()
+ 	  elseif type(g:BufExplorerFuncRef) == 3
+ 	    for FncRef in g:BufExplorerFuncRef
+ 	      if type(FncRef) == 2
+ 		    keepj call FncRef()
+ 	      endif
+ 	    endfor
+ 	  endif
+    endif
+  else
+    call s:BEError("Sorry, that buffer no longer exists, please select another")
+    call s:BEDeleteBuffer(_bufNbr, "wipe")
+  endif
+endfunction
+
+" BEDeleteBufferListing {{{1
+function! s:BEDeleteBufferListing(buf)
+    if exists('s:raw_buffer_listing') && !empty(s:raw_buffer_listing)
+        " Delete the buffer from the raw buffer list.
+        " Careful use of ' and " so we do not have to escape all the \'s
+        " Regex: ^\s*\(10\|20\)\>
+        "        ^ - Starting at the beginning of the string
+        "        \s* - optional whitespace
+        "        \(10\|20\) - either a 10 or a 20
+        "        \> - end of word (so it can't make 100 or 201)
+        call filter(s:raw_buffer_listing, "v:val.attributes !~ '".'^\s*\('.substitute(a:buf, ' ', '\\|', 'g').'\)\>'."'")
+    endif
+endfunction
+
+" BERemoveBuffer {{{1
+function! s:BERemoveBuffer(type, mode) range
+    " Are we on a line with a file name?
+    if line('.') < s:firstBufferLine
+        return
+    endif
+
+    " These commands are to temporarily suspend the activity of winmanager.
+    if exists("b:displayMode") && b:displayMode == "winmanager"
+        call WinManagerSuspendAUs()
+    endif
+
+    let _bufNbrs = ''
+
+    for lineNum in range(a:firstline, a:lastline)
+        let line = getline(lineNum)
+
+        if line =~ '^\s*\(\d\+\)'
+            " Regex: ^\s*\(10\|20\)\>
+            "        ^ - Starting at the beginning of the string
+            "        \s* - optional whitespace
+            "        \zs - start the match here
+            "        \d\+ - any digits
+            "        \> - end of word (so it can't make 100 or 201)
+            let bufNbr = matchstr(line, '^\s*\zs\d\+\>')
+
+            " Add 0 to bufNbr to ensure Vim treats it as a Number
+            " for use with the getbufvar() function
+            if bufNbr !~ '^\d\+$' || getbufvar(bufNbr+0, '&modified') != 0
+                call s:BEError("Sorry, no write since last change for buffer ".bufNbr.", unable to delete")
+            else
+                let _bufNbrs = _bufNbrs . (_bufNbrs==''?'':' '). bufNbr 
+            endif
+        endif
+    endfor
+
+    " Okay, everything is good, delete or wipe the buffers.
+    call s:BEDeleteBuffer(_bufNbrs, a:type)
+
+    " Reactivate winmanager autocommand activity.
+    if exists("b:displayMode") && b:displayMode == "winmanager"
+        call WinManagerForceReSize("BufExplorer")
+        call WinManagerResumeAUs()
+    endif
+endfunction
+
+" BEDeleteBuffer {{{1
+function! s:BEDeleteBuffer(bufNbr, mode)
+    " This routine assumes that the buffer to be removed is on the current line.
+    try
+        if a:mode == "wipe"
+            exe "bwipe" a:bufNbr
+        else
+            exe "bdelete" a:bufNbr
+        endif
+
+        setlocal modifiable
+
+        " Remove each of the lines beginning with the buffer numbers we are removing
+        " Regex: ^\s*\(10\|20\)\>
+        "        ^ - Starting at the beginning of the string
+        "        \s* - optional whitespace
+        "        \(10\|20\) - either a 10 or a 20
+        "        \> - end of word (so it can't make 100 or 201)
+        exec 'silent! g/^\s*\('.substitute(a:bufNbr, ' ', '\\|', 'g').'\)\>/d_'
+
+        setlocal nomodifiable
+
+        call s:BEDeleteBufferListing(a:bufNbr)
+    catch
+        call s:BEError(v:exception)
+    endtry
+endfunction
+
+" BEClose {{{1
+function! s:BEClose(mode)
+    " Get only the listed buffers.
+    let listed = filter(copy(s:MRUList), "buflisted(v:val)")
+
+    " If we needed to split the main window, close the split one.
+"  if (s:splitMode)
+"  if (s:splitMode != "")
+    if (s:splitMode != "" && a:mode == "quit")
+        exec "wincmd c"
+    endif
+
+    if len(listed) == 0
+        exe "enew"
+    else
+        for b in reverse(listed[0:1])
+            exec "keepjumps silent b ".b
+        endfor
+    endif
+endfunction
+
+" BEToggleSplitOutPathName {{{1
+function! s:BEToggleSplitOutPathName()
+    let g:bufExplorerSplitOutPathName = !g:bufExplorerSplitOutPathName
+    call s:BERebuildBufferList()
+    call s:BEUpdateHelpStatus()
+endfunction
+
+" BEToggleShowRelativePath {{{1
+function! s:BEToggleShowRelativePath()
+    let g:bufExplorerShowRelativePath = !g:bufExplorerShowRelativePath
+    call s:BERebuildBufferList()
+    call s:BEUpdateHelpStatus()
+endfunction
+
+" BEToggleShowUnlisted {{{1
+function! s:BEToggleShowUnlisted()
+    let g:bufExplorerShowUnlisted = !g:bufExplorerShowUnlisted
+    let num_bufs = s:BERebuildBufferList(g:bufExplorerShowUnlisted == 0)
+    call s:BEUpdateHelpStatus()
+endfunction
+
+" BEToggleFindActive {{{1
+function! s:BEToggleFindActive()
+    let g:bufExplorerFindActive = !g:bufExplorerFindActive
+    call s:BEUpdateHelpStatus()
+endfunction
+
+" BEToggleShowTabBuffer {{{1
+function! s:BEToggleShowTabBuffer()
+    let g:bufExplorerShowTabBuffer = !g:bufExplorerShowTabBuffer
+    call s:BEDisplayBufferList()
+endfunction
+
+" BEToggleOnlyOneTab {{{1
+function! s:BEToggleOnlyOneTab()
+    let g:bufExplorerOnlyOneTab = !g:bufExplorerOnlyOneTab
+    call s:BEDisplayBufferList()
+endfunction
+
+" BERebuildBufferList {{{1
+function! s:BERebuildBufferList(...)
+    setlocal modifiable
+
+    let curPos = getpos('.')
+
+    if a:0
+        " Clear the list first.
+        exec "keepjumps ".s:firstBufferLine.',$d "_'
+    endif
+
+    let num_bufs = s:BEBuildBufferList()
+
+    call setpos('.', curPos)
+
+    setlocal nomodifiable
+
+    return num_bufs
+endfunction
+
+" BEUpdateHelpStatus {{{1
+function! s:BEUpdateHelpStatus()
+    setlocal modifiable
+
+    let text = s:BEGetHelpStatus()
+    call setline(s:firstBufferLine - 2, text)
+
+    setlocal nomodifiable
+endfunction
+
+" BEMRUCmp {{{1
+function! s:BEMRUCmp(line1, line2)
+    return index(s:MRUList, str2nr(a:line1)) - index(s:MRUList, str2nr(a:line2))
+endfunction
+
+" BESortReverse {{{1
+function! s:BESortReverse()
+    let g:bufExplorerReverseSort = !g:bufExplorerReverseSort
+    call s:BEReSortListing()
+endfunction
+
+" BESortSelect {{{1
+function! s:BESortSelect()
+    let g:bufExplorerSortBy = get(s:sort_by, index(s:sort_by, g:bufExplorerSortBy) + 1, s:sort_by[0])
+    call s:BEReSortListing()
+endfunction
+
+" BEReverseSortSelect {{{1
+function! s:BEReverseSortSelect()
+    let g:bufExplorerSortBy = get(s:sort_by, (index(s:sort_by, g:bufExplorerSortBy) + len(s:sort_by) - 1) % len(s:sort_by), s:sort_by[0])
+    call s:BEReSortListing()
+endfunction
+
+" BEReSortListing {{{1
+function! s:BEReSortListing()
+    setlocal modifiable
+
+    let curPos = getpos('.')
+
+    call s:BESortListing()
+    call s:BEUpdateHelpStatus()
+
+    call setpos('.', curPos)
+
+    setlocal nomodifiable
+endfunction
+
+" BESortListing {{{1
+function! s:BESortListing()
+  let sort = s:firstBufferLine.",$sort".((g:bufExplorerReverseSort == 1) ? "!": "")
+
+  if g:bufExplorerSortBy == "number"
+    " Easiest case.
+    exec sort 'n'
+  elseif g:bufExplorerSortBy == "name"
+    if g:bufExplorerSplitOutPathName
+      exec sort 'ir /\d.\{7}\zs\f\+\ze/'
+    else
+      exec sort 'ir /\zs[^\/\\]\+\ze\s*line/'
+    endif
+  elseif g:bufExplorerSortBy == "fullpath"
+    if g:bufExplorerSplitOutPathName
+      " Sort twice - first on the file name then on the path.
+      exec sort 'ir /\d.\{7}\zs\f\+\ze/'
+    endif
+
+    exec sort 'ir /\zs\f\+\ze\s\+line/'
+  elseif g:bufExplorerSortBy == "extension"
+    exec sort 'ir /\.\zs\w\+\ze\s/'
+  elseif g:bufExplorerSortBy == "mru"
+    let l = getline(s:firstBufferLine, "$")
+
+    call sort(l, "<SID>BEMRUCmp")
+
+    if g:bufExplorerReverseSort
+      call reverse(l)
+    endif
+
+    call setline(s:firstBufferLine, l)
+  endif
+endfunction
+
+" BEMRUListShow {{{1
+function! s:BEMRUListShow()
+    echomsg "MRUList=".string(s:MRUList)
+endfunction
+
+" BEError {{{1
+function! s:BEError(msg)
+    echohl ErrorMsg | echo a:msg | echohl none
+endfunction
+
+" BEWarning {{{1
+function! s:BEWarning(msg)
+    echohl WarningMsg | echo a:msg | echohl none
+endfunction
+
+" GetTabNbr {{{1
+function! s:BEGetTabNbr(bufNbr)
+    " Searching buffer bufno, in tabs.
+    for i in range(tabpagenr("$"))
+        if index(tabpagebuflist(i + 1), a:bufNbr) != -1
+            return i + 1
+        endif
+    endfor
+
+    return 0
+endfunction
+
+" GetWinNbr" {{{1
+function! s:BEGetWinNbr(tabNbr, bufNbr)
+    " window number in tabpage.
+    return index(tabpagebuflist(a:tabNbr), a:bufNbr) + 1
+endfunction
+
+" Winmanager Integration {{{1
+let g:BufExplorer_title = "\[Buf\ List\]"
+call s:BESet("g:bufExplorerResize", 1)
+call s:BESet("g:bufExplorerMaxHeight", 25) " Handles dynamic resizing of the window.
+
+" Function to start display. Set the mode to 'winmanager' for this buffer.
+" This is to figure out how this plugin was called. In a standalone fashion
+" or by winmanager.
+function! BufExplorer_Start()
+    let b:displayMode = "winmanager"
+    call StartBufExplorer("e")
+endfunction
+
+" Returns whether the display is okay or not.
+function! BufExplorer_IsValid()
+    return 0
+endfunction
+
+" Handles dynamic refreshing of the window.
+function! BufExplorer_Refresh()
+    let b:displayMode = "winmanager"
+    call StartBufExplorer("e")
+endfunction
+
+function! BufExplorer_ReSize()
+  if !g:bufExplorerResize
+    return
+  endif
+
+  let nlines = min([line("$"), g:bufExplorerMaxHeight])
+
+  exe nlines." wincmd _"
+
+  " The following lines restore the layout so that the last file line is also
+  " the last window line. Sometimes, when a line is deleted, although the
+  " window size is exactly equal to the number of lines in the file, some of
+  " the lines are pushed up and we see some lagging '~'s.
+  let pres = getpos(".")
+
+  exe $
+
+  let _scr = &scrolloff
+  let &scrolloff = 0
+
+  normal! z-
+
+  let &scrolloff = _scr
+
+  call setpos(".", pres)
+endfunction
+
+" Default values {{{1
+call s:BESet("g:bufExplorerDefaultHelp", 1)           " Show default help?
+call s:BESet("g:bufExplorerDetailedHelp", 0)          " Show detailed help?
+call s:BESet("g:bufExplorerFindActive", 1)            " When selecting an active buffer, take you to the window where it is active?
+call s:BESet("g:bufExplorerReverseSort", 0)           " sort reverse?
+call s:BESet("g:bufExplorerShowDirectories", 1)       " (Dir's are added by commands like ':e .')
+call s:BESet("g:bufExplorerShowRelativePath", 0)      " Show listings with relative or absolute paths?
+call s:BESet("g:bufExplorerShowUnlisted", 0)          " Show unlisted buffers?
+call s:BESet("g:bufExplorerSortBy", "mru")            " Sorting methods are in s:sort_by:
+call s:BESet("g:bufExplorerSplitOutPathName", 1)      " Split out path and file name?
+call s:BESet("g:bufExplorerSplitRight", &splitright)  " Should vertical splits be on the right or left of current window?
+call s:BESet("g:bufExplorerSplitBelow", &splitbelow)  " Should horizontal splits be below or above current window?
+call s:BESet("g:bufExplorerShowTabBuffer", 0)         " Show only buffer(s) for this tab?
+call s:BESet("g:bufExplorerOnlyOneTab", 1)            " If ShowTabBuffer = 1, only store the most recent tab for this buffer.
+
+" Global variables {{{1
+call s:BEReset()
+let s:running = 0
+let s:sort_by = ["number", "name", "fullpath", "mru", "extension"]
+let s:types = {"fullname": ':p', "path": ':p:h', "relativename": ':~:.', "relativepath": ':~:.:h', "shortname": ':t'}
+let s:originBuffer = 0
+let s:splitMode = ""
+let s:name = '[BufExplorer]'
+let s:refreshBufferList = 1
+let s:MRU_Exclude_List = ["[BufExplorer]","__MRU_Files__"]
+"1}}}
+
+" vim:ft=vim foldmethod=marker sw=2
diff --git a/vimrc b/vimrc
index 2e37dc5..ac925d3 100644
--- a/vimrc
+++ b/vimrc
@@ -84,6 +84,11 @@ noremap <C-a> :call RunSpec()<Enter>
 noremap <C-e> :NERDTreeToggle<Enter>
 let NERDTreeMapActivateNode='<Space>'
 
+" bufexplore
+noremap ,fe :BufExplorer<Enter>
+noremap ,fs :BufExplorerHorizontalSplit<Enter>
+noremap ,fv :BufExplorerVerticalSplit<Enter>
+
 "
 " visual
 "