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+*NERD_tree.txt*   A tree explorer plugin that owns your momma!
+
+
+
+    omg its ... ~
+
+    ________  ________   _   ____________  ____     __________  ____________~
+   /_  __/ / / / ____/  / | / / ____/ __ \/ __ \   /_  __/ __ \/ ____/ ____/~
+    / / / /_/ / __/    /  |/ / __/ / /_/ / / / /    / / / /_/ / __/ / __/   ~
+   / / / __  / /___   / /|  / /___/ _, _/ /_/ /    / / / _, _/ /___/ /___   ~
+  /_/ /_/ /_/_____/  /_/ |_/_____/_/ |_/_____/    /_/ /_/ |_/_____/_____/   ~
+
+
+                              Reference Manual~
+
+
+
+
+==============================================================================
+CONTENTS                                                   *NERDTree-contents*
+
+    1.Intro...................................|NERDTree|
+    2.Functionality provided..................|NERDTreeFunctionality|
+        2.1.Global commands...................|NERDTreeGlobalCommands|
+        2.2.Bookmarks.........................|NERDTreeBookmarks|
+            2.2.1.The bookmark table..........|NERDTreeBookmarkTable|
+            2.2.2.Bookmark commands...........|NERDTreeBookmarkCommands|
+            2.2.3.Invalid bookmarks...........|NERDTreeInvalidBookmarks|
+        2.3.NERD tree mappings................|NERDTreeMappings|
+        2.4.The NERD tree menu................|NERDTreeMenu|
+    3.Options.................................|NERDTreeOptions|
+        3.1.Option summary....................|NERDTreeOptionSummary|
+        3.2.Option details....................|NERDTreeOptionDetails|
+    4.The NERD tree API.......................|NERDTreeAPI|
+        4.1.Key map API.......................|NERDTreeKeymapAPI|
+        4.2.Menu API..........................|NERDTreeMenuAPI|
+    5.About...................................|NERDTreeAbout|
+    6.Changelog...............................|NERDTreeChangelog|
+    7.Credits.................................|NERDTreeCredits|
+    8.License.................................|NERDTreeLicense|
+
+==============================================================================
+1. Intro                                                            *NERDTree*
+
+What is this "NERD tree"??
+
+The NERD tree allows you to explore your filesystem and to open files and
+directories. It presents the filesystem to you in the form of a tree which you
+manipulate with the keyboard and/or mouse. It also allows you to perform
+simple filesystem operations.
+
+The following features and functionality are provided by the NERD tree:
+    * Files and directories are displayed in a hierarchical tree structure
+    * Different highlighting is provided for the following types of nodes:
+        * files
+        * directories
+        * sym-links
+        * windows .lnk files
+        * read-only files
+        * executable files
+    * Many (customisable) mappings are provided to manipulate the tree:
+        * Mappings to open/close/explore directory nodes
+        * Mappings to open files in new/existing windows/tabs
+        * Mappings to change the current root of the tree
+        * Mappings to navigate around the tree
+        * ...
+    * Directories and files can be bookmarked.
+    * Most NERD tree navigation can also be done with the mouse
+    * Filtering of tree content (can be toggled at runtime)
+        * custom file filters to prevent e.g. vim backup files being displayed
+        * optional displaying of hidden files (. files)
+        * files can be "turned off" so that only directories are displayed
+    * The position and size of the NERD tree window can be customised
+    * The order in which the nodes in the tree are listed can be customised.
+    * A model of your filesystem is created/maintained as you explore it. This
+      has several advantages:
+        * All filesystem information is cached and is only re-read on demand
+        * If you revisit a part of the tree that you left earlier in your
+          session, the directory nodes will be opened/closed as you left them
+    * The script remembers the cursor position and window position in the NERD
+      tree so you can toggle it off (or just close the tree window) and then
+      reopen it (with NERDTreeToggle) the NERD tree window will appear exactly
+      as you left it
+    * You can have a separate NERD tree for each tab, share trees across tabs,
+      or a mix of both.
+    * By default the script overrides the default file browser (netw), so if
+      you :edit a directory a (slighly modified) NERD tree will appear in the
+      current window
+    * A programmable menu system is provided (simulates right clicking on a
+      node)
+        * one default menu plugin is provided to perform basic filesytem
+          operations (create/delete/move/copy files/directories)
+    * There's an API for adding your own keymappings
+
+
+==============================================================================
+2. Functionality provided                              *NERDTreeFunctionality*
+
+------------------------------------------------------------------------------
+2.1. Global Commands                                  *NERDTreeGlobalCommands*
+
+:NERDTree [<start-directory> | <bookmark>]                         *:NERDTree*
+    Opens a fresh NERD tree. The root of the tree depends on the argument
+    given. There are 3 cases: If no argument is given, the current directory
+    will be used.  If a directory is given, that will be used. If a bookmark
+    name is given, the corresponding directory will be used.  For example: >
+        :NERDTree /home/marty/vim7/src
+        :NERDTree foo   (foo is the name of a bookmark)
+<
+:NERDTreeFromBookmark <bookmark>                       *:NERDTreeFromBookmark*
+    Opens a fresh NERD tree with the root initialized to the dir for
+    <bookmark>.  This only reason to use this command over :NERDTree is for
+    the completion (which is for bookmarks rather than directories).
+
+:NERDTreeToggle [<start-directory> | <bookmark>]             *:NERDTreeToggle*
+    If a NERD tree already exists for this tab, it is reopened and rendered
+    again.  If no NERD tree exists for this tab then this command acts the
+    same as the |:NERDTree| command.
+
+:NERDTreeMirror                                              *:NERDTreeMirror*
+    Shares an existing NERD tree, from another tab, in the current tab.
+    Changes made to one tree are reflected in both as they are actually the
+    same buffer.
+
+    If only one other NERD tree exists, that tree is automatically mirrored. If
+    more than one exists, the script will ask which tree to mirror.
+
+:NERDTreeClose                                                *:NERDTreeClose*
+    Close the NERD tree in this tab.
+
+:NERDTreeFind                                                  *:NERDTreeFind*
+    Find the current file in the tree. If no tree exists for the current tab,
+    or the file is not under the current root, then initialize a new tree where
+    the root is the directory of the current file.
+
+------------------------------------------------------------------------------
+2.2. Bookmarks                                             *NERDTreeBookmarks*
+
+Bookmarks in the NERD tree are a way to tag files or directories of interest.
+For example, you could use bookmarks to tag all of your project directories.
+
+------------------------------------------------------------------------------
+2.2.1. The Bookmark Table                              *NERDTreeBookmarkTable*
+
+If the bookmark table is active (see |NERDTree-B| and
+|'NERDTreeShowBookmarks'|), it will be rendered above the tree. You can double
+click bookmarks or use the |NERDTree-o| mapping to activate them. See also,
+|NERDTree-t| and |NERDTree-T|
+
+------------------------------------------------------------------------------
+2.2.2. Bookmark commands                            *NERDTreeBookmarkCommands*
+
+Note that the following commands are only available in the NERD tree buffer.
+
+:Bookmark <name>
+    Bookmark the current node as <name>. If there is already a <name>
+    bookmark, it is overwritten. <name> must not contain spaces.
+
+:BookmarkToRoot <bookmark>
+    Make the directory corresponding to <bookmark> the new root. If a treenode
+    corresponding to <bookmark> is already cached somewhere in the tree then
+    the current tree will be used, otherwise a fresh tree will be opened.
+    Note that if <bookmark> points to a file then its parent will be used
+    instead.
+
+:RevealBookmark <bookmark>
+    If the node is cached under the current root then it will be revealed
+    (i.e. directory nodes above it will be opened) and the cursor will be
+    placed on it.
+
+:OpenBookmark <bookmark>
+    <bookmark> must point to a file. The file is opened as though |NERDTree-o|
+    was applied. If the node is cached under the current root then it will be
+    revealed and the cursor will be placed on it.
+
+:ClearBookmarks [<bookmarks>]
+    Remove all the given bookmarks. If no bookmarks are given then remove all
+    bookmarks on the current node.
+
+:ClearAllBookmarks
+    Remove all bookmarks.
+
+:ReadBookmarks
+    Re-read the bookmarks in the |'NERDTreeBookmarksFile'|.
+
+See also |:NERDTree| and |:NERDTreeFromBookmark|.
+
+------------------------------------------------------------------------------
+2.2.3. Invalid Bookmarks                            *NERDTreeInvalidBookmarks*
+
+If invalid bookmarks are detected, the script will issue an error message and
+the invalid bookmarks will become unavailable for use.
+
+These bookmarks will still be stored in the bookmarks file (see
+|'NERDTreeBookmarksFile'|), down the bottom. There will always be a blank line
+after the valid bookmarks but before the invalid ones.
+
+Each line in the bookmarks file represents one bookmark. The proper format is:
+<bookmark name><space><full path to the bookmark location>
+
+After you have corrected any invalid bookmarks, either restart vim, or go
+:ReadBookmarks from the NERD tree window.
+
+------------------------------------------------------------------------------
+2.3. NERD tree Mappings                                     *NERDTreeMappings*
+
+Default  Description~                                             help-tag~
+Key~
+
+o.......Open files, directories and bookmarks....................|NERDTree-o|
+go......Open selected file, but leave cursor in the NERDTree.....|NERDTree-go|
+t.......Open selected node/bookmark in a new tab.................|NERDTree-t|
+T.......Same as 't' but keep the focus on the current tab........|NERDTree-T|
+i.......Open selected file in a split window.....................|NERDTree-i|
+gi......Same as i, but leave the cursor on the NERDTree..........|NERDTree-gi|
+s.......Open selected file in a new vsplit.......................|NERDTree-s|
+gs......Same as s, but leave the cursor on the NERDTree..........|NERDTree-gs|
+O.......Recursively open the selected directory..................|NERDTree-O|
+x.......Close the current nodes parent...........................|NERDTree-x|
+X.......Recursively close all children of the current node.......|NERDTree-X|
+e.......Edit the current dif.....................................|NERDTree-e|
+
+<CR>...............same as |NERDTree-o|.
+double-click.......same as the |NERDTree-o| map.
+middle-click.......same as |NERDTree-i| for files, same as
+                   |NERDTree-e| for dirs.
+
+D.......Delete the current bookmark .............................|NERDTree-D|
+
+P.......Jump to the root node....................................|NERDTree-P|
+p.......Jump to current nodes parent.............................|NERDTree-p|
+K.......Jump up inside directories at the current tree depth.....|NERDTree-K|
+J.......Jump down inside directories at the current tree depth...|NERDTree-J|
+<C-J>...Jump down to the next sibling of the current directory...|NERDTree-C-J|
+<C-K>...Jump up to the previous sibling of the current directory.|NERDTree-C-K|
+
+C.......Change the tree root to the selected dir.................|NERDTree-C|
+u.......Move the tree root up one directory......................|NERDTree-u|
+U.......Same as 'u' except the old root node is left open........|NERDTree-U|
+r.......Recursively refresh the current directory................|NERDTree-r|
+R.......Recursively refresh the current root.....................|NERDTree-R|
+m.......Display the NERD tree menu...............................|NERDTree-m|
+cd......Change the CWD to the dir of the selected node...........|NERDTree-cd|
+
+I.......Toggle whether hidden files displayed....................|NERDTree-I|
+f.......Toggle whether the file filters are used.................|NERDTree-f|
+F.......Toggle whether files are displayed.......................|NERDTree-F|
+B.......Toggle whether the bookmark table is displayed...........|NERDTree-B|
+
+q.......Close the NERDTree window................................|NERDTree-q|
+A.......Zoom (maximize/minimize) the NERDTree window.............|NERDTree-A|
+?.......Toggle the display of the quick help.....................|NERDTree-?|
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-o*
+Default key: o
+Map option: NERDTreeMapActivateNode
+Applies to: files and directories.
+
+If a file node is selected, it is opened in the previous window.
+
+If a directory is selected it is opened or closed depending on its current
+state.
+
+If a bookmark that links to a directory is selected then that directory
+becomes the new root.
+
+If a bookmark that links to a file is selected then that file is opened in the
+previous window.
+
+------------------------------------------------------------------------------
+                                                                 *NERDTree-go*
+Default key: go
+Map option: None
+Applies to: files.
+
+If a file node is selected, it is opened in the previous window, but the
+cursor does not move.
+
+The key combo for this mapping is always "g" + NERDTreeMapActivateNode (see
+|NERDTree-o|).
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-t*
+Default key: t
+Map option: NERDTreeMapOpenInTab
+Applies to: files and directories.
+
+Opens the selected file in a new tab. If a directory is selected, a fresh
+NERD Tree for that directory is opened in a new tab.
+
+If a bookmark which points to a directory is selected, open a NERD tree for
+that directory in a new tab. If the bookmark points to a file, open that file
+in a new tab.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-T*
+Default key: T
+Map option: NERDTreeMapOpenInTabSilent
+Applies to: files and directories.
+
+The same as |NERDTree-t| except that the focus is kept in the current tab.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-i*
+Default key: i
+Map option: NERDTreeMapOpenSplit
+Applies to: files.
+
+Opens the selected file in a new split window and puts the cursor in the new
+window.
+
+------------------------------------------------------------------------------
+                                                                 *NERDTree-gi*
+Default key: gi
+Map option: None
+Applies to: files.
+
+The same as |NERDTree-i| except that the cursor is not moved.
+
+The key combo for this mapping is always "g" + NERDTreeMapOpenSplit (see
+|NERDTree-i|).
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-s*
+Default key: s
+Map option: NERDTreeMapOpenVSplit
+Applies to: files.
+
+Opens the selected file in a new vertically split window and puts the cursor in
+the new window.
+
+------------------------------------------------------------------------------
+                                                                 *NERDTree-gs*
+Default key: gs
+Map option: None
+Applies to: files.
+
+The same as |NERDTree-s| except that the cursor is not moved.
+
+The key combo for this mapping is always "g" + NERDTreeMapOpenVSplit (see
+|NERDTree-s|).
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-O*
+Default key: O
+Map option: NERDTreeMapOpenRecursively
+Applies to: directories.
+
+Recursively opens the selelected directory.
+
+All files and directories are cached, but if a directory would not be
+displayed due to file filters (see |'NERDTreeIgnore'| |NERDTree-f|) or the
+hidden file filter (see |'NERDTreeShowHidden'|) then its contents are not
+cached. This is handy, especially if you have .svn directories.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-x*
+Default key: x
+Map option: NERDTreeMapCloseDir
+Applies to: files and directories.
+
+Closes the parent of the selected node.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-X*
+Default key: X
+Map option: NERDTreeMapCloseChildren
+Applies to: directories.
+
+Recursively closes all children of the selected directory.
+
+Tip: To quickly "reset" the tree, use |NERDTree-P| with this mapping.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-e*
+Default key: e
+Map option: NERDTreeMapOpenExpl
+Applies to: files and directories.
+
+|:edit|s the selected directory, or the selected file's directory. This could
+result in a NERD tree or a netrw being opened, depending on
+|'NERDTreeHijackNetrw'|.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-D*
+Default key: D
+Map option: NERDTreeMapDeleteBookmark
+Applies to: lines in the bookmarks table
+
+Deletes the currently selected bookmark.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-P*
+Default key: P
+Map option: NERDTreeMapJumpRoot
+Applies to: no restrictions.
+
+Jump to the tree root.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-p*
+Default key: p
+Map option: NERDTreeMapJumpParent
+Applies to: files and directories.
+
+Jump to the parent node of the selected node.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-K*
+Default key: K
+Map option: NERDTreeMapJumpFirstChild
+Applies to: files and directories.
+
+Jump to the first child of the current nodes parent.
+
+If the cursor is already on the first node then do the following:
+    * loop back thru the siblings of the current nodes parent until we find an
+      open dir with children
+    * go to the first child of that node
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-J*
+Default key: J
+Map option: NERDTreeMapJumpLastChild
+Applies to: files and directories.
+
+Jump to the last child of the current nodes parent.
+
+If the cursor is already on the last node then do the following:
+    * loop forward thru the siblings of the current nodes parent until we find
+      an open dir with children
+    * go to the last child of that node
+
+------------------------------------------------------------------------------
+                                                                *NERDTree-C-J*
+Default key: <C-J>
+Map option: NERDTreeMapJumpNextSibling
+Applies to: files and directories.
+
+Jump to the next sibling of the selected node.
+
+------------------------------------------------------------------------------
+                                                                *NERDTree-C-K*
+Default key: <C-K>
+Map option: NERDTreeMapJumpPrevSibling
+Applies to: files and directories.
+
+Jump to the previous sibling of the selected node.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-C*
+Default key: C
+Map option: NERDTreeMapChdir
+Applies to: directories.
+
+Make the selected directory node the new tree root. If a file is selected, its
+parent is used.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-u*
+Default key: u
+Map option: NERDTreeMapUpdir
+Applies to: no restrictions.
+
+Move the tree root up a dir (like doing a "cd ..").
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-U*
+Default key: U
+Map option: NERDTreeMapUpdirKeepOpen
+Applies to: no restrictions.
+
+Like |NERDTree-u| except that the old tree root is kept open.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-r*
+Default key: r
+Map option: NERDTreeMapRefresh
+Applies to: files and directories.
+
+If a dir is selected, recursively refresh that dir, i.e. scan the filesystem
+for changes and represent them in the tree.
+
+If a file node is selected then the above is done on it's parent.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-R*
+Default key: R
+Map option: NERDTreeMapRefreshRoot
+Applies to: no restrictions.
+
+Recursively refresh the tree root.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-m*
+Default key: m
+Map option: NERDTreeMapMenu
+Applies to: files and directories.
+
+Display the NERD tree menu. See |NERDTreeMenu| for details.
+
+------------------------------------------------------------------------------
+                                                                 *NERDTree-cd*
+Default key: cd
+Map option: NERDTreeMapChdir
+Applies to: files and directories.
+
+Change vims current working directory to that of the selected node.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-I*
+Default key: I
+Map option: NERDTreeMapToggleHidden
+Applies to: no restrictions.
+
+Toggles whether hidden files (i.e. "dot files") are displayed.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-f*
+Default key: f
+Map option: NERDTreeMapToggleFilters
+Applies to: no restrictions.
+
+Toggles whether file filters are used. See |'NERDTreeIgnore'| for details.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-F*
+Default key: F
+Map option: NERDTreeMapToggleFiles
+Applies to: no restrictions.
+
+Toggles whether file nodes are displayed.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-B*
+Default key: B
+Map option: NERDTreeMapToggleBookmarks
+Applies to: no restrictions.
+
+Toggles whether the bookmarks table is displayed.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-q*
+Default key: q
+Map option: NERDTreeMapQuit
+Applies to: no restrictions.
+
+Closes the NERDtree window.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-A*
+Default key: A
+Map option: NERDTreeMapToggleZoom
+Applies to: no restrictions.
+
+Maximize (zoom) and minimize the NERDtree window.
+
+------------------------------------------------------------------------------
+                                                                  *NERDTree-?*
+Default key: ?
+Map option: NERDTreeMapHelp
+Applies to: no restrictions.
+
+Toggles whether the quickhelp is displayed.
+
+------------------------------------------------------------------------------
+2.3. The NERD tree menu                                         *NERDTreeMenu*
+
+The NERD tree has a menu that can be programmed via the an API (see
+|NERDTreeMenuAPI|). The idea is to simulate the "right click" menus that most
+file explorers have.
+
+The script comes with two default menu plugins: exec_menuitem.vim and
+fs_menu.vim. fs_menu.vim adds some basic filesystem operations to the menu for
+creating/deleting/moving/copying files and dirs. exec_menuitem.vim provides a
+menu item to execute executable files.
+
+Related tags: |NERDTree-m| |NERDTreeApi|
+
+==============================================================================
+3. Customisation                                             *NERDTreeOptions*
+
+
+------------------------------------------------------------------------------
+3.1. Customisation summary                             *NERDTreeOptionSummary*
+
+The script provides the following options that can customise the behaviour the
+NERD tree. These options should be set in your vimrc.
+
+|'loaded_nerd_tree'|            Turns off the script.
+
+|'NERDChristmasTree'|           Tells the NERD tree to make itself colourful
+                                and pretty.
+
+|'NERDTreeAutoCenter'|          Controls whether the NERD tree window centers
+                                when the cursor moves within a specified
+                                distance to the top/bottom of the window.
+|'NERDTreeAutoCenterThreshold'| Controls the sensitivity of autocentering.
+
+|'NERDTreeCaseSensitiveSort'|   Tells the NERD tree whether to be case
+                                sensitive or not when sorting nodes.
+
+|'NERDTreeChDirMode'|           Tells the NERD tree if/when it should change
+                                vim's current working directory.
+
+|'NERDTreeHighlightCursorline'| Tell the NERD tree whether to highlight the
+                                current cursor line.
+
+|'NERDTreeHijackNetrw'|         Tell the NERD tree whether to replace the netrw
+                                autocommands for exploring local directories.
+
+|'NERDTreeIgnore'|              Tells the NERD tree which files to ignore.
+
+|'NERDTreeBookmarksFile'|       Where the bookmarks are stored.
+
+|'NERDTreeMouseMode'|           Tells the NERD tree how to handle mouse
+                                clicks.
+
+|'NERDTreeQuitOnOpen'|          Closes the tree window after opening a file.
+
+|'NERDTreeShowBookmarks'|       Tells the NERD tree whether to display the
+                                bookmarks table on startup.
+
+|'NERDTreeShowFiles'|           Tells the NERD tree whether to display files
+                                in the tree on startup.
+
+|'NERDTreeShowHidden'|          Tells the NERD tree whether to display hidden
+                                files on startup.
+
+|'NERDTreeShowLineNumbers'|     Tells the NERD tree whether to display line
+                                numbers in the tree window.
+
+|'NERDTreeSortOrder'|           Tell the NERD tree how to sort the nodes in
+                                the tree.
+
+|'NERDTreeStatusline'|          Set a statusline for NERD tree windows.
+
+|'NERDTreeWinPos'|              Tells the script where to put the NERD tree
+                                window.
+
+|'NERDTreeWinSize'|             Sets the window size when the NERD tree is
+                                opened.
+
+------------------------------------------------------------------------------
+3.2. Customisation details                             *NERDTreeOptionDetails*
+
+To enable any of the below options you should put the given line in your
+~/.vimrc
+
+                                                          *'loaded_nerd_tree'*
+If this plugin is making you feel homicidal, it may be a good idea to turn it
+off with this line in your vimrc: >
+    let loaded_nerd_tree=1
+<
+------------------------------------------------------------------------------
+                                                         *'NERDChristmasTree'*
+Values: 0 or 1.
+Default: 1.
+
+If this option is set to 1 then some extra syntax highlighting elements are
+added to the nerd tree to make it more colourful.
+
+Set it to 0 for a more vanilla looking tree.
+
+------------------------------------------------------------------------------
+                                                        *'NERDTreeAutoCenter'*
+Values: 0 or 1.
+Default: 1
+
+If set to 1, the NERD tree window will center around the cursor if it moves to
+within |'NERDTreeAutoCenterThreshold'| lines of the top/bottom of the window.
+
+This is ONLY done in response to tree navigation mappings,
+i.e. |NERDTree-J| |NERDTree-K| |NERDTree-C-J| |NERDTree-C-K| |NERDTree-p|
+|NERDTree-P|
+
+The centering is done with a |zz| operation.
+
+------------------------------------------------------------------------------
+                                               *'NERDTreeAutoCenterThreshold'*
+Values: Any natural number.
+Default: 3
+
+This option controls the "sensitivity" of the NERD tree auto centering. See
+|'NERDTreeAutoCenter'| for details.
+
+------------------------------------------------------------------------------
+                                                 *'NERDTreeCaseSensitiveSort'*
+Values: 0 or 1.
+Default: 0.
+
+By default the NERD tree does not sort nodes case sensitively, i.e. nodes
+could appear like this: >
+    bar.c
+    Baz.c
+    blarg.c
+    boner.c
+    Foo.c
+<
+But, if you set this option to 1 then the case of the nodes will be taken into
+account. The above nodes would then be sorted like this: >
+    Baz.c
+    Foo.c
+    bar.c
+    blarg.c
+    boner.c
+<
+------------------------------------------------------------------------------
+                                                         *'NERDTreeChDirMode'*
+
+Values: 0, 1 or 2.
+Default: 0.
+
+Use this option to tell the script when (if at all) to change the current
+working directory (CWD) for vim.
+
+If it is set to 0 then the CWD is never changed by the NERD tree.
+
+If set to 1 then the CWD is changed when the NERD tree is first loaded to the
+directory it is initialized in. For example, if you start the NERD tree with >
+    :NERDTree /home/marty/foobar
+<
+then the CWD will be changed to /home/marty/foobar and will not be changed
+again unless you init another NERD tree with a similar command.
+
+If the option is set to 2 then it behaves the same as if set to 1 except that
+the CWD is changed whenever the tree root is changed. For example, if the CWD
+is /home/marty/foobar and you make the node for /home/marty/foobar/baz the new
+root then the CWD will become /home/marty/foobar/baz.
+
+------------------------------------------------------------------------------
+                                               *'NERDTreeHighlightCursorline'*
+Values: 0 or 1.
+Default: 1.
+
+If set to 1, the current cursor line in the NERD tree buffer will be
+highlighted. This is done using the |'cursorline'| option.
+
+------------------------------------------------------------------------------
+                                                       *'NERDTreeHijackNetrw'*
+Values: 0 or 1.
+Default: 1.
+
+If set to 1, doing a >
+    :edit <some directory>
+<
+will open up a "secondary" NERD tree instead of a netrw in the target window.
+
+Secondary NERD trees behaves slighly different from a regular trees in the
+following respects:
+    1. 'o' will open the selected file in the same window as the tree,
+       replacing it.
+    2. you can have as many secondary tree as you want in the same tab.
+
+------------------------------------------------------------------------------
+                                                            *'NERDTreeIgnore'*
+Values: a list of regular expressions.
+Default: ['\~$'].
+
+This option is used to specify which files the NERD tree should ignore.  It
+must be a list of regular expressions. When the NERD tree is rendered, any
+files/dirs that match any of the regex's in 'NERDTreeIgnore' wont be
+displayed.
+
+For example if you put the following line in your vimrc: >
+    let NERDTreeIgnore=['\.vim$', '\~$']
+<
+then all files ending in .vim or ~ will be ignored.
+
+Note: to tell the NERD tree not to ignore any files you must use the following
+line: >
+    let NERDTreeIgnore=[]
+<
+
+The file filters can be turned on and off dynamically with the |NERDTree-f|
+mapping.
+
+------------------------------------------------------------------------------
+                                                     *'NERDTreeBookmarksFile'*
+Values: a path
+Default: $HOME/.NERDTreeBookmarks
+
+This is where bookmarks are saved. See |NERDTreeBookmarkCommands|.
+
+------------------------------------------------------------------------------
+                                                       *'NERDTreeMouseMode'*
+Values: 1, 2 or 3.
+Default: 1.
+
+If set to 1 then a double click on a node is required to open it.
+If set to 2 then a single click will open directory nodes, while a double
+click will still be required for file nodes.
+If set to 3 then a single click will open any node.
+
+Note: a double click anywhere on a line that a tree node is on will
+activate it, but all single-click activations must be done on name of the node
+itself. For example, if you have the following node: >
+    | | |-application.rb
+<
+then (to single click activate it) you must click somewhere in
+'application.rb'.
+
+------------------------------------------------------------------------------
+                                                        *'NERDTreeQuitOnOpen'*
+
+Values: 0 or 1.
+Default: 0
+
+If set to 1, the NERD tree window will close after opening a file with the
+|NERDTree-o|, |NERDTree-i|, |NERDTree-t| and |NERDTree-T| mappings.
+
+------------------------------------------------------------------------------
+                                                     *'NERDTreeShowBookmarks'*
+Values: 0 or 1.
+Default: 0.
+
+If this option is set to 1 then the bookmarks table will be displayed.
+
+This option can be toggled dynamically, per tree, with the |NERDTree-B|
+mapping.
+
+------------------------------------------------------------------------------
+                                                         *'NERDTreeShowFiles'*
+Values: 0 or 1.
+Default: 1.
+
+If this option is set to 1 then files are displayed in the NERD tree. If it is
+set to 0 then only directories are displayed.
+
+This option can be toggled dynamically, per tree, with the |NERDTree-F|
+mapping and is useful for drastically shrinking the tree when you are
+navigating to a different part of the tree.
+
+------------------------------------------------------------------------------
+                                                        *'NERDTreeShowHidden'*
+Values: 0 or 1.
+Default: 0.
+
+This option tells vim whether to display hidden files by default. This option
+can be dynamically toggled, per tree, with the |NERDTree-I| mapping.  Use one
+of the follow lines to set this option: >
+    let NERDTreeShowHidden=0
+    let NERDTreeShowHidden=1
+<
+
+------------------------------------------------------------------------------
+                                                   *'NERDTreeShowLineNumbers'*
+Values: 0 or 1.
+Default: 0.
+
+This option tells vim whether to display line numbers for the NERD tree
+window.  Use one of the follow lines to set this option: >
+    let NERDTreeShowLineNumbers=0
+    let NERDTreeShowLineNumbers=1
+<
+
+------------------------------------------------------------------------------
+                                                         *'NERDTreeSortOrder'*
+Values: a list of regular expressions.
+Default: ['\/$', '*', '\.swp$',  '\.bak$', '\~$']
+
+This option is set to a list of regular expressions which are used to
+specify the order of nodes under their parent.
+
+For example, if the option is set to: >
+    ['\.vim$', '\.c$', '\.h$', '*', 'foobar']
+<
+then all .vim files will be placed at the top, followed by all .c files then
+all .h files. All files containing the string 'foobar' will be placed at the
+end.  The star is a special flag: it tells the script that every node that
+doesnt match any of the other regexps should be placed here.
+
+If no star is present in 'NERDTreeSortOrder' then one is automatically
+appended to the array.
+
+The regex '\/$' should be used to match directory nodes.
+
+After this sorting is done, the files in each group are sorted alphabetically.
+
+Other examples: >
+    (1) ['*', '\/$']
+    (2) []
+    (3) ['\/$', '\.rb$', '\.php$', '*', '\.swp$',  '\.bak$', '\~$']
+<
+1. Directories will appear last, everything else will appear above.
+2. Everything will simply appear in alphabetical order.
+3. Dirs will appear first, then ruby and php. Swap files, bak files and vim
+   backup files will appear last with everything else preceding them.
+
+------------------------------------------------------------------------------
+                                                        *'NERDTreeStatusline'*
+Values: Any valid statusline setting.
+Default: %{b:NERDTreeRoot.path.strForOS(0)}
+
+Tells the script what to use as the |'statusline'| setting for NERD tree
+windows.
+
+Note that the statusline is set using |:let-&| not |:set| so escaping spaces
+isn't necessary.
+
+Setting this option to -1 will will deactivate it so that your global
+statusline setting is used instead.
+
+------------------------------------------------------------------------------
+                                                            *'NERDTreeWinPos'*
+Values: "left" or "right"
+Default: "left".
+
+This option is used to determine where NERD tree window is placed on the
+screen.
+
+This option makes it possible to use two different explorer plugins
+simultaneously. For example, you could have the taglist plugin on the left of
+the window and the NERD tree on the right.
+
+------------------------------------------------------------------------------
+                                                           *'NERDTreeWinSize'*
+Values: a positive integer.
+Default: 31.
+
+This option is used to change the size of the NERD tree when it is loaded.
+
+==============================================================================
+4. The NERD tree API                                             *NERDTreeAPI*
+
+The NERD tree script allows you to add custom key mappings and menu items via
+a set of API calls. Any scripts that use this API should be placed in
+~/.vim/nerdtree_plugin/ (*nix) or ~/vimfiles/nerdtree_plugin (windows).
+
+The script exposes some prototype objects that can be used to manipulate the
+tree and/or get information from it: >
+    g:NERDTreePath
+    g:NERDTreeDirNode
+    g:NERDTreeFileNode
+    g:NERDTreeBookmark
+<
+See the code/comments in NERD_tree.vim to find how to use these objects. The
+following code conventions are used:
+    * class members start with a capital letter
+    * instance members start with a lower case letter
+    * private members start with an underscore
+
+See this blog post for more details:
+ http://got-ravings.blogspot.com/2008/09/vim-pr0n-prototype-based-objects.html
+
+------------------------------------------------------------------------------
+4.1. Key map API                                           *NERDTreeKeymapAPI*
+
+NERDTreeAddKeyMap({options})                             *NERDTreeAddKeyMap()*
+    Adds a new keymapping for all NERD tree buffers.
+    {options} must be a dictionary, and must contain the following keys:
+    "key" - the trigger key for the new mapping
+    "callback" - the function the new mapping will be bound to
+    "quickhelpText" - the text that will appear in the quickhelp (see
+    |NERDTree-?|)
+
+    Example: >
+        call NERDTreeAddKeyMap({
+               \ 'key': 'b',
+               \ 'callback': 'NERDTreeEchoCurrentNode',
+               \ 'quickhelpText': 'echo full path of current node' })
+
+        function! NERDTreeEchoCurrentNode()
+            let n = g:NERDTreeFileNode.GetSelected()
+            if n != {}
+                echomsg 'Current node: ' . n.path.str()
+            endif
+        endfunction
+<
+    This code should sit in a file like ~/.vim/nerdtree_plugin/mymapping.vim.
+    It adds a (rather useless) mapping on 'b' which echos the full path to the
+    current node.
+
+------------------------------------------------------------------------------
+4.2. Menu API                                                *NERDTreeMenuAPI*
+
+NERDTreeAddSubmenu({options})                           *NERDTreeAddSubmenu()*
+    Creates and returns a new submenu.
+
+    {options} must be a dictionary and must contain the following keys:
+    "text" - the text of the submenu that the user will see
+    "shortcut" - a shortcut key for the submenu (need not be unique)
+
+    The following keys are optional:
+    "isActiveCallback" - a function that will be called to determine whether
+    this submenu item will be displayed or not. The callback function must return
+    0 or 1.
+    "parent" - the parent submenu of the new submenu (returned from a previous
+    invocation of NERDTreeAddSubmenu()). If this key is left out then the new
+    submenu will sit under the top level menu.
+
+    See below for an example.
+
+NERDTreeAddMenuItem({options})                         *NERDTreeAddMenuItem()*
+    Adds a new menu item to the NERD tree menu (see |NERDTreeMenu|).
+
+    {options} must be a dictionary and must contain the
+    following keys:
+    "text" - the text of the menu item which the user will see
+    "shortcut" - a shortcut key for the menu item (need not be unique)
+    "callback" - the function that will be called when the user activates the
+    menu item.
+
+    The following keys are optional:
+    "isActiveCallback" - a function that will be called to determine whether
+    this menu item will be displayed or not. The callback function must return
+    0 or 1.
+    "parent" - if the menu item belongs under a submenu then this key must be
+    specified. This value for this key will be the object that
+    was returned when the submenu was created with |NERDTreeAddSubmenu()|.
+
+    See below for an example.
+
+NERDTreeAddMenuSeparator([{options}])             *NERDTreeAddMenuSeparator()*
+    Adds a menu separator (a row of dashes).
+
+    {options} is an optional dictionary that may contain the following keys:
+    "isActiveCallback" - see description in |NERDTreeAddMenuItem()|.
+
+Below is an example of the menu API in action. >
+    call NERDTreeAddMenuSeparator()
+
+    call NERDTreeAddMenuItem({
+                \ 'text': 'a (t)op level menu item',
+                \ 'shortcut': 't',
+                \ 'callback': 'SomeFunction' })
+
+    let submenu = NERDTreeAddSubmenu({
+                \ 'text': 'a (s)ub menu',
+                \ 'shortcut': 's' })
+
+    call NERDTreeAddMenuItem({
+                \ 'text': '(n)ested item 1',
+                \ 'shortcut': 'n',
+                \ 'callback': 'SomeFunction',
+                \ 'parent': submenu })
+
+    call NERDTreeAddMenuItem({
+                \ 'text': '(n)ested item 2',
+                \ 'shortcut': 'n',
+                \ 'callback': 'SomeFunction',
+                \ 'parent': submenu })
+<
+This will create the following menu: >
+  --------------------
+  a (t)op level menu item
+  a (s)ub menu
+<
+Where selecting "a (s)ub menu" will lead to a second menu: >
+  (n)ested item 1
+  (n)ested item 2
+<
+When any of the 3 concrete menu items are selected the function "SomeFunction"
+will be called.
+
+------------------------------------------------------------------------------
+NERDTreeRender()                                            *NERDTreeRender()*
+    Re-renders the NERD tree buffer. Useful if you change the state of the
+    tree and you want to it to be reflected in the UI.
+
+==============================================================================
+5. About                                                       *NERDTreeAbout*
+
+The author of the NERD tree is a terrible terrible monster called Martyzilla
+who gobbles up small children with milk and sugar for breakfast.
+
+He can be reached at martin.grenfell at gmail dot com. He would love to hear
+from you, so feel free to send him suggestions and/or comments about this
+plugin.  Don't be shy --- the worst he can do is slaughter you and stuff you in
+the fridge for later ;)
+
+The latest stable versions can be found at
+    http://www.vim.org/scripts/script.php?script_id=1658
+
+The latest dev versions are on github
+    http://github.com/scrooloose/nerdtree
+
+
+==============================================================================
+6. Changelog                                               *NERDTreeChangelog*
+
+4.1.0
+    features:
+    - NERDTreeFind to reveal the node for the current buffer in the tree,
+      see |NERDTreeFind|. This effectively merges the FindInNERDTree plugin (by
+      Doug McInnes) into the script.
+    - make NERDTreeQuitOnOpen apply to the t/T keymaps too. Thanks to Stefan
+      Ritter and Rémi Prévost.
+    - truncate the root node if wider than the tree window. Thanks to Victor
+      Gonzalez.
+
+    bugfixes:
+    - really fix window state restoring
+    - fix some win32 path escaping issues. Thanks to Stephan Baumeister, Ricky,
+      jfilip1024, and Chris Chambers
+
+4.0.0
+    - add a new programmable menu system (see :help NERDTreeMenu).
+    - add new APIs to add menus/menu-items to the menu system as well as
+      custom key mappings to the NERD tree buffer (see :help NERDTreeAPI).
+    - removed the old API functions
+    - added a mapping to maximize/restore the size of nerd tree window, thanks
+      to Guillaume Duranceau for the patch. See :help NERDTree-A for details.
+
+    - fix a bug where secondary nerd trees (netrw hijacked trees) and
+      NERDTreeQuitOnOpen didnt play nicely, thanks to Curtis Harvey.
+    - fix a bug where the script ignored directories whose name ended in a dot,
+      thanks to Aggelos Orfanakos for the patch.
+    - fix a bug when using the x mapping on the tree root, thanks to Bryan
+      Venteicher for the patch.
+    - fix a bug where the cursor position/window size of the nerd tree buffer
+      wasnt being stored on closing the window, thanks to Richard Hart.
+    - fix a bug where NERDTreeMirror would mirror the wrong tree
+
+3.1.1
+    - fix a bug where a non-listed no-name buffer was getting created every
+      time the tree windows was created, thanks to Derek Wyatt and owen1
+    - make <CR> behave the same as the 'o' mapping
+    - some helptag fixes in the doc, thanks strull
+    - fix a bug when using :set nohidden and opening a file where the previous
+      buf was modified. Thanks iElectric
+    - other minor fixes
+
+3.1.0
+    New features:
+    - add mappings to open files in a vsplit, see :help NERDTree-s and :help
+      NERDTree-gs
+    - make the statusline for the nerd tree window default to something
+      hopefully more useful. See :help 'NERDTreeStatusline'
+    Bugfixes:
+    - make the hijack netrw functionality work when vim is started with "vim
+      <some dir>" (thanks to Alf Mikula for the patch).
+    - fix a bug where the CWD wasnt being changed for some operations even when
+      NERDTreeChDirMode==2 (thanks to Lucas S. Buchala)
+    - add -bar to all the nerd tree :commands so they can chain with other
+      :commands (thanks to tpope)
+    - fix bugs when ignorecase was set (thanks to nach)
+    - fix a bug with the relative path code (thanks to nach)
+    - fix a bug where doing a :cd would cause :NERDTreeToggle to fail (thanks nach)
+
+
+3.0.1
+    Bugfixes:
+    - fix bugs with :NERDTreeToggle and :NERDTreeMirror when 'hidden
+      was not set
+    - fix a bug where :NERDTree <path> would fail if <path> was relative and
+      didnt start with a ./ or ../  Thanks to James Kanze.
+    - make the q mapping work with secondary (:e <dir>  style) trees,
+      thanks to jamessan
+    - fix a bunch of small bugs with secondary trees
+
+    More insane refactoring.
+
+3.0.0
+    - hijack netrw so that doing an :edit <directory>  will put a NERD tree in
+      the window rather than a netrw browser. See :help 'NERDTreeHijackNetrw'
+    - allow sharing of trees across tabs, see :help :NERDTreeMirror
+    - remove "top" and "bottom" as valid settings for NERDTreeWinPos
+    - change the '<tab>' mapping to 'i'
+    - change the 'H' mapping to 'I'
+    - lots of refactoring
+
+==============================================================================
+7. Credits                                                   *NERDTreeCredits*
+
+Thanks to the following people for testing, bug reports, ideas etc. Without
+you I probably would have got bored of the hacking the NERD tree and
+just downloaded pr0n instead.
+
+    Tim Carey-Smith (halorgium)
+    Vigil
+    Nick Brettell
+    Thomas Scott Urban
+    Terrance Cohen
+    Yegappan Lakshmanan
+    Jason Mills
+    Michael Geddes (frogonwheels)
+    Yu Jun
+    Michael Madsen
+    AOYAMA Shotaro
+    Zhang Weiwu
+    Niels Aan de Brugh
+    Olivier Yiptong
+    Zhang Shuhan
+    Cory Echols
+    Piotr Czachur
+    Yuan Jiang
+    Matan Nassau
+    Maxim Kim
+    Charlton Wang
+    Matt Wozniski (godlygeek)
+    knekk
+    Sean Chou
+    Ryan Penn
+    Simon Peter Nicholls
+    Michael Foobar
+    Tomasz Chomiuk
+    Denis Pokataev
+    Tim Pope (tpope)
+    James Kanze
+    James Vega (jamessan)
+    Frederic Chanal (nach)
+    Alf Mikula
+    Lucas S. Buchala
+    Curtis Harvey
+    Guillaume Duranceau
+    Richard Hart (hates)
+    Doug McInnes
+    Stefan Ritter
+    Rémi Prévost
+    Victor Gonzalez
+    Stephan Baumeister
+    Ricky
+    jfilip1024
+    Chris Chambers
+
+==============================================================================
+8. License                                                   *NERDTreeLicense*
+
+The NERD tree is released under the wtfpl.
+See http://sam.zoy.org/wtfpl/COPYING.