If file path doesn't exist, :NERDTreeFind its parent directory instead. (#1043)

* If file path doesn't exist, :NERDTreeFind its parent directory instead.

This happens in the following scenario:
```
:edit path/new_file
:NERDTreeFind
```
Instead of an error message about an **invalid path**, this change will
now find the parent directory instead. It will not work if the new file
is **path/new_folder/new_file**, and that's OK because even vim itself
cannot handle both the new folder and the new file; `:w` won't create
the new folder.

* Update version number in change log.

* Change version change from PATCH to MINOR.

.github/ISSUE_TEMPLATE/bug.md

@@ -3,18 +3,18 @@ name: "Bug Report"
 about: "NERDTree is misbehaving? Tell us about it."
 labels: bug
 ---
+<!-- Attention! Please Read!
 
-# Attention! Please Read!
+Please fill out ALL the information below so that the issue can be fully
+understood. Omitting information will delay the resolution of your issue. It
+will be labeled "Needs More Info", and may be closed until there is enough
+information.
 
-Please fill out **ALL the information** below so that the issue can be fully understood. Omitting information will delay the resolution of your issue. It will be labeled **`Needs More Info`**, and *may* be closed until there is enough information.
-
-Keep in mind that others may have the same question in the future. The better your information, the more likely they'll be able to help themselves.
-
-After reading, and before submitting your issue, please remove this introductory text.
-
-──────────────────── ✄ ────────────────────
+Keep in mind that others may have the same question in the future. The better
+your information, the more likely they'll be able to help themselves. -->
 
 #### Self-Diagnosis
+<!-- Check the boxes after creating the issue, or use [x]. -->
 - [ ] I have searched the [issues](https://github.com/scrooloose/nerdtree/issues) for an answer to my question.
 - [ ] I have reviewed the NERDTree documentation. `:h NERDTree`
 - [ ] I have reviewed the [Wiki](https://github.com/scrooloose/nerdtree/wiki).
@@ -22,9 +22,8 @@ After reading, and before submitting your issue, please remove this introductory
 
 #### Environment (for bug reports)
 - [ ] Operating System: 
-- [ ] Vim/Neovim version `:version`: 
-- [ ] NERDTree version `:echo nerdtree#version(0)` or `git rev-parse --short HEAD`: 
-- [ ] A link to my [vimrc](), or
+- [ ] Vim/Neovim version `:echo v:version`: 
+- [ ] NERDTree version, found on 1st line in NERDTree quickhelp `?`: 
 - [ ] vimrc settings
     - [ ] NERDTree variables
     ```vim

.github/ISSUE_TEMPLATE/question.md

@@ -3,18 +3,18 @@ name: "General Question"
 about: "Having trouble setting up NERDTree? Need clarification on a setting? Ask your question here."
 labels: "general question"
 ---
+<!-- Attention! Please Read!
 
-# Attention! Please Read!
+Please fill out ALL the information below so that the issue can be fully
+understood. Omitting information will delay the resolution of your issue. It
+will be labeled "Needs More Info", and may be closed until there is enough
+information.
 
-Please fill out **ALL the information** below so that the issue can be fully understood. Omitting information will delay the resolution of your issue. It will be labeled **`Needs More Info`**, and *may* be closed until there is enough information.
-
-Keep in mind that others may have the same question in the future. The better your information, the more likely they'll be able to help themselves.
-
-After reading, and before submitting your issue, please remove this introductory text.
-
-──────────────────── ✄ ────────────────────
+Keep in mind that others may have the same question in the future. The better
+your information, the more likely they'll be able to help themselves. -->
 
 #### Self-Diagnosis
+<!-- Check the boxes after creating the issue, or use [x]. -->
 - [ ] I have searched the [issues](https://github.com/scrooloose/nerdtree/issues) for an answer to my question.
 - [ ] I have reviewed the NERDTree documentation. `:h NERDTree`
 - [ ] I have reviewed the [Wiki](https://github.com/scrooloose/nerdtree/wiki).

.github/PULL_REQUEST_TEMPLATE.md

@@ -9,12 +9,5 @@ Closes #  <!-- Issue number this PR addresses. If none, remove this line. -->
     - [ ] `MAJOR` version when you make incompatible API changes
     - [ ] `MINOR` version when you add functionality in a backwards-compatible manner
     - [ ] `PATCH` version when you make backwards-compatible bug fixes
-- [ ] Update [CHANGELOG.md](https://github.com/scrooloose/nerdtree/blob/master/CHANGELOG.md), following this format/example:
-    ```
-    #### MAJOR.MINOR...
-    - **.PATCH**: PR Title (Author) #PR Number
-
-    #### 5.1...
-    - **.1**: Update Changelog and create PR Template (PhilRunninger) #1007
-    - **.0**: Too many changes for one patch...
-    ```
+- [ ] Update [CHANGELOG.md](https://github.com/scrooloose/nerdtree/blob/master/CHANGELOG.md), following the established pattern.
+- [ ] Tag the merge commit, e.g. `git tag -a 3.1.4 -m "v3.1.4" && git push origin --tags`

CHANGELOG.md

@@ -1,125 +1,144 @@
 # Change Log
 
+#### 6.1...
+- **.0**: If file path doesn't exist, :NERDTreeFind its parent directory instead. (PhilRunninger) [#1043](https://github.com/scrooloose/nerdtree/pull/1043)
+#### 6.0...
+- **.1**: Reintroduce necessary variable mistakenly removed. (PhilRunninger) [#1040](https://github.com/scrooloose/nerdtree/pull/1040)
+- **.0**: Make the behavior of window splits consistent (dragonxlwang, PhilRunninger) [#1035](https://github.com/scrooloose/nerdtree/pull/1035)
+#### 5.3...
+- **.3**: Fix (p)ath not displaying in the minimal menu (tuzz) [#1038](https://github.com/scrooloose/nerdtree/pull/1038)
+- **.2**: Enable events when closing NerdTree window. (PhilRunninger) [#1037](https://github.com/scrooloose/nerdtree/pull/1037)
+- **.1**: Fix the `e` key mapping to use netrw if desired (PhilRunninger) [#1031](https://github.com/scrooloose/nerdtree/pull/1031)
+- **.0**: Add file extension and size to sorting capabilities (PhilRunninger) [#1029](https://github.com/scrooloose/nerdtree/pull/1029)
 #### 5.2...
-- **.0**: Expand functionality of `<CR>` mapping. (PhilRunninger) #1011
+- **.9**: Suppress events for intermediate window/tab/buffer changes (PhilRunninger) [#1026](https://github.com/scrooloose/nerdtree/pull/1026)
+- **.8**: Revert [#1019](https://github.com/scrooloose/nerdtree/pull/1019) to fix nvim artifacts and flickering. (PhilRunninger) [#1021](https://github.com/scrooloose/nerdtree/pull/1021)
+- **.7**: Use :mode only in neovim. MacVim still needs to use :redraw! (PhilRunninger) [#1019](https://github.com/scrooloose/nerdtree/pull/1019)
+- **.6**: In CHANGELOG.md and PR template, make reference to PR a true HTML link. (PhilRunninger) [#1017](https://github.com/scrooloose/nerdtree/pull/1017)
+- **.5**: Use `:mode` instead of `:redraw!` when updating menu. (PhilRunninger) [#1016](https://github.com/scrooloose/nerdtree/pull/1016)
+- **.4**: When searching for root line num, stop at end of file. (PhilRunninger) [#1015](https://github.com/scrooloose/nerdtree/pull/1015)
+- **.3**: Fix `<CR>` key map on the bookmark (lkebin) [#1014](https://github.com/scrooloose/nerdtree/pull/1014)
+- **.2**: Make Enter work on the `.. ( up a dir )` line (PhilRunninger) [#1013](https://github.com/scrooloose/nerdtree/pull/1013)
+- **.1**: Fix nerdtree#version() on Windows. (PhilRunninger)
+- **.0**: Expand functionality of `<CR>` mapping. (PhilRunninger) [#1011](https://github.com/scrooloose/nerdtree/pull/1011)
 #### 5.1...
-- **.3**: Remove @mentions from PR template and change log. They weren't working. (PhilRunninger) #1009
-- **.2**: Fix NERDTree opening with the wrong size. (PhilRunninger) #1008
-- **.1**: Update Changelog and create PR Template (PhilRunninger) #1007
+- **.3**: Remove @mentions from PR template and change log. They weren't working. (PhilRunninger) [#1009](https://github.com/scrooloose/nerdtree/pull/1009)
+- **.2**: Fix NERDTree opening with the wrong size. (PhilRunninger) [#1008](https://github.com/scrooloose/nerdtree/pull/1008)
+- **.1**: Update Changelog and create PR Template (PhilRunninger) [#1007](https://github.com/scrooloose/nerdtree/pull/1007)
 - **.0**: Too many changes for one patch...
-    - Refresh a dir_node if the file wasn't found in it, and look once more. (PhilRunninger) #1005
-    - Add a "copy path to clipboard" menu option (PhilRunninger) #1002
-    - Enable root refresh on "vim ." a different way than #999. (PhilRunninger) #1001
-    - Fix refreshroot (PhilRunninger) #999
-    - Change version check to look for 703 not 730 (vhalis) #994
-    - Change minimum vim (PhilRunninger) #991
-    - Allow multi-character DirArrows (PhilRunninger) #985
-    - Remove redraw! while still clearing last message empty string. (PhilRunninger) #979
-    - fix _initChildren function value set to numChildrenCached error (terryding77) #969
-    - On Windows, do a case-insensitive comparison of paths. (PhilRunninger) #967
-    - Remove the "Please wait... DONE" messages. (PhilRunninger) #966
-    - Smarter delimiter default (PhilRunninger) #963
-    - Update directory .vimdc readme example (spencerdcarlson) #961
-    - Preview bookmarks (PhilRunninger) #956
-    - Add new value to NERDTreeQuitOnOpen to close bookmark table (PhilRunninger) #955
-    - Add an :EditBookmarks command to edit the bookmarks file (PhilRunninger) #954
-    - Before copying, turn off &shellslash. Restore after copy is finished. (PhilRunninger) #952
-    - Set a maximum window size when zooming. (PhilRunninger) #950
-    - Confirm the wipeout of a unsaved buffer whose file has been renamed. (PhilRunninger) #949
-    - Escape a backslash so it can be used in a key mapping. (PhilRunninger) #948
-    - Add a NERDTreeMinimalMenu feature (tuzz) #938
-    - fixed root path error for windows (zcodes) #935
-    - Restore getDirChildren for use in nerdtree-project-plugin. (PhilRunninger) #929
-    - Document NERDTreeNodeDelimiter #912 (PhilRunninger) #926
-    - Allow modification of menu keybindings (Leandros) #923
-    - Add two more disqualifications for isCascadable(). (PhilRunninger) #914
-    - Allow highlighting more than one flag. (kristijanhusak) #908
-    - Support sorting files and directories by modification time. (PhilRunninger) #901
-    - Parse . and .. from path string with trailing slash. (PhilRunninger) #899
-    - Force sort to recalculate the cached sortKey. (PhilRunninger) #898
-    - Add NERDTreeRefreshRoot command (wgfm) #897
-    - Call Resolve on the file's path when calling :NERDTreeFind. (PhilRunninger) #896
-    - Catch all errors, not just NERDTree errors. (PhilRunninger) #894
-    - Fix typo in help file (lvoisin) #892
-    - Make NERDTreeCreator set the `'nolist'` option (lifecrisis) #889
-    - Refresh buffers after `m`, `m` operation on a folder (PhilRunninger) #888
-    - Use a better arg for FINDSTR when using the m,l command in Windows. (PhilRunninger) #887
-    - Fix the <C-J>/<C-K> motions, which currently fail with cascades (lifecrisis) #886
-    - Function "s:UI.getLineNum()" doesn't always work on cascades. (lifecrisis) #882
-    - NERDTreeCWD: reset CWD if changed by NERDTreeFocus (PhilRunninger) #878
-    - Use <count>tabnext instead of <count>gt to allow users to remap gt. (PhilRunninger) #877
-    - Do a case sensitive comparison of new/existing buffers. (PhilRunninger) #875
-    - Fix opening sub-directories that have commas in their name. (PhilRunninger) #873
-    - Add new command to open NERDTree in the root of a VCS repository. (PhilRunninger) #872
-    - Make sure the path to the bookmarks file exists before writing it. (PhilRunninger) #871
-    - Unzoom NERDTree when opening a file (PhilRunninger) #870
-    - Support unusual characters in file and directory names (PhilRunninger) #868
-    - Reword renamed-buffer prompt to be more clear (aflock) #867
-    - Default to placing cursor on root when closing bookmark table (lifecrisis) #866
-    - Fix issues with sorting of nodes (PhilRunninger) #856
-    - Better OSX detection (bubba-h57) #853
-    - Bugfix - ensure keymaps dictionary exists before using it (mnussbaum) #852
-    - Decrease startup-time by avoiding linear-time iteration over key mappings (mnussbaum) #851
-    - Add code to sort mappings in quickhelp (lifecrisis) #849
-    - Use ":clearjumps" in new NERDTree windows (lifecrisis) #844
-    - Like m-c did before, create parent directories if needed on m-m. (PhilRunninger) #840
-    - BUGFIX: Repair a problem with the `'u'` mapping. (lifecrisis) #838
-    - Make the NERDTree buffer writable when rendering it. (PhilRunninger) #837
-    - Code cleanup: Remove unsupported bookmark table mappings (lifecrisis) #835
-    - Replace strcharpart() with substitute() for backward compatibility (bravestarr) #834
-    - Fixed error `unknown function strcharpart` for older versions of Vim (hav4ik) #833
-    - Clear output when NERDTree menu is aborted (lifecrisis) #832
-    - Display a path with multi-byte characters correctly when it is truncated (bravestarr) #830
-    - Support revealing file and executing file with xdg-open for Linux (ngnmhieu) #824
-    - If node isn't open, count children on disk before deleting. (PhilRunninger) #822
-    - Add new variable g:NERDTreeRemoveFileCmd (kutsan) #816
-    - Use a better check for existence of the NERDTree buffer. (PhilRunninger) #814
-    - Fix focussing previous buffer when closing NERDTree (mrubli) #801
-    - Update the docs for "NERDTreeStatusline" (lifecrisis) #796
-    - BUGFIX: Unstable behavior in the "getPath()" method (lifecrisis) #795
-    - Revert the bugfix from pull request #785 (lifecrisis) #794
-    - BUGFIX: Allow ":NERDTreeFind" to discover hidden files (lifecrisis) #786
-    - BUGFIX: Allow ":NERDTreeFind" to reveal new files (lifecrisis) #785
-    - Add modelines (lifecrisis) #782
-    - Change the type of completion used by NERDTreeFind (lifecrisis) #781
-    - change NERDTreeFind with args (zhenyangze) #778
-    - Style Choice: Using confirm() when deleting a bookmark (lifecrisis) #777
-    - remove useless substitute when `file =~# "/$"` (skyblueee) #773
-    - remove useless removeLeadingSpaces in _stripMarkup (skyblueee) #772
-    - Make the "o" mapping consistent with "x" (lifecrisis) #769
-    - Fix a problem with the "x" handler (lifecrisis) #768
-    - Clean up the handler for the "x" mapping (lifecrisis) #767
-    - Revert change to tab opening method (lifecrisis) #766
-    - BUGFIX: Add back support for "b:NERDTreeRoot" (lifecrisis) #765
-    - Fix broken "t" and "T" mappings, tabs now open at end (lifecrisis) #759
-    - Update doc with already existing mapping variables (asnr) #699
-    - Fix the broken g:NERDTreeBookmarksSort setting (lifecrisis) #696
-    - Correct NERDTreeIgnore pattern in doc (cntoplolicon) #648
-    - Remove empty segments when splitting path (sooth-sayer) #574
-    - Suppress autocmds less agressively (wincent) #578 #691
+    - Refresh a dir_node if the file wasn't found in it, and look once more. (PhilRunninger) [#1005](https://github.com/scrooloose/nerdtree/pull/1005)
+    - Add a "copy path to clipboard" menu option (PhilRunninger) [#1002](https://github.com/scrooloose/nerdtree/pull/1002)
+    - Enable root refresh on "vim ." a different way than [#999](https://github.com/scrooloose/nerdtree/pull/999). (PhilRunninger) [#1001](https://github.com/scrooloose/nerdtree/pull/1001)
+    - Fix refreshroot (PhilRunninger) [#999](https://github.com/scrooloose/nerdtree/pull/999)
+    - Change version check to look for 703 not 730 (vhalis) [#994](https://github.com/scrooloose/nerdtree/pull/994)
+    - Change minimum vim (PhilRunninger) [#991](https://github.com/scrooloose/nerdtree/pull/991)
+    - Allow multi-character DirArrows (PhilRunninger) [#985](https://github.com/scrooloose/nerdtree/pull/985)
+    - Remove redraw! while still clearing last message empty string. (PhilRunninger) [#979](https://github.com/scrooloose/nerdtree/pull/979)
+    - fix `_initChildren` function value set to numChildrenCached error (terryding77) [#969](https://github.com/scrooloose/nerdtree/pull/969)
+    - On Windows, do a case-insensitive comparison of paths. (PhilRunninger) [#967](https://github.com/scrooloose/nerdtree/pull/967)
+    - Remove the **Please wait... DONE** messages. (PhilRunninger) [#966](https://github.com/scrooloose/nerdtree/pull/966)
+    - Smarter delimiter default (PhilRunninger) [#963](https://github.com/scrooloose/nerdtree/pull/963)
+    - Update directory .vimdc readme example (spencerdcarlson) [#961](https://github.com/scrooloose/nerdtree/pull/961)
+    - Preview bookmarks (PhilRunninger) [#956](https://github.com/scrooloose/nerdtree/pull/956)
+    - Add new value to NERDTreeQuitOnOpen to close bookmark table (PhilRunninger) [#955](https://github.com/scrooloose/nerdtree/pull/955)
+    - Add an :EditBookmarks command to edit the bookmarks file (PhilRunninger) [#954](https://github.com/scrooloose/nerdtree/pull/954)
+    - Before copying, turn off &shellslash. Restore after copy is finished. (PhilRunninger) [#952](https://github.com/scrooloose/nerdtree/pull/952)
+    - Set a maximum window size when zooming. (PhilRunninger) [#950](https://github.com/scrooloose/nerdtree/pull/950)
+    - Confirm the wipeout of a unsaved buffer whose file has been renamed. (PhilRunninger) [#949](https://github.com/scrooloose/nerdtree/pull/949)
+    - Escape a backslash so it can be used in a key mapping. (PhilRunninger) [#948](https://github.com/scrooloose/nerdtree/pull/948)
+    - Add a NERDTreeMinimalMenu feature (tuzz) [#938](https://github.com/scrooloose/nerdtree/pull/938)
+    - fixed root path error for windows (zcodes) [#935](https://github.com/scrooloose/nerdtree/pull/935)
+    - Restore getDirChildren for use in nerdtree-project-plugin. (PhilRunninger) [#929](https://github.com/scrooloose/nerdtree/pull/929)
+    - Document NERDTreeNodeDelimiter [#912](https://github.com/scrooloose/nerdtree/pull/912) (PhilRunninger) [#926](https://github.com/scrooloose/nerdtree/pull/926)
+    - Allow modification of menu keybindings (Leandros) [#923](https://github.com/scrooloose/nerdtree/pull/923)
+    - Add two more disqualifications for isCascadable(). (PhilRunninger) [#914](https://github.com/scrooloose/nerdtree/pull/914)
+    - Allow highlighting more than one flag. (kristijanhusak) [#908](https://github.com/scrooloose/nerdtree/pull/908)
+    - Support sorting files and directories by modification time. (PhilRunninger) [#901](https://github.com/scrooloose/nerdtree/pull/901)
+    - Parse . and .. from path string with trailing slash. (PhilRunninger) [#899](https://github.com/scrooloose/nerdtree/pull/899)
+    - Force sort to recalculate the cached sortKey. (PhilRunninger) [#898](https://github.com/scrooloose/nerdtree/pull/898)
+    - Add NERDTreeRefreshRoot command (wgfm) [#897](https://github.com/scrooloose/nerdtree/pull/897)
+    - Call Resolve on the file's path when calling :NERDTreeFind. (PhilRunninger) [#896](https://github.com/scrooloose/nerdtree/pull/896)
+    - Catch all errors, not just NERDTree errors. (PhilRunninger) [#894](https://github.com/scrooloose/nerdtree/pull/894)
+    - Fix typo in help file (lvoisin) [#892](https://github.com/scrooloose/nerdtree/pull/892)
+    - Make NERDTreeCreator set the `'nolist'` option (lifecrisis) [#889](https://github.com/scrooloose/nerdtree/pull/889)
+    - Refresh buffers after `m`, `m` operation on a folder (PhilRunninger) [#888](https://github.com/scrooloose/nerdtree/pull/888)
+    - Use a better arg for FINDSTR when using the m,l command in Windows. (PhilRunninger) [#887](https://github.com/scrooloose/nerdtree/pull/887)
+    - Fix the <C-J>/<C-K> motions, which currently fail with cascades (lifecrisis) [#886](https://github.com/scrooloose/nerdtree/pull/886)
+    - Function "s:UI.getLineNum()" doesn't always work on cascades. (lifecrisis) [#882](https://github.com/scrooloose/nerdtree/pull/882)
+    - NERDTreeCWD: reset CWD if changed by NERDTreeFocus (PhilRunninger) [#878](https://github.com/scrooloose/nerdtree/pull/878)
+    - Use <count>tabnext instead of <count>gt to allow users to remap gt. (PhilRunninger) [#877](https://github.com/scrooloose/nerdtree/pull/877)
+    - Do a case sensitive comparison of new/existing buffers. (PhilRunninger) [#875](https://github.com/scrooloose/nerdtree/pull/875)
+    - Fix opening sub-directories that have commas in their name. (PhilRunninger) [#873](https://github.com/scrooloose/nerdtree/pull/873)
+    - Add new command to open NERDTree in the root of a VCS repository. (PhilRunninger) [#872](https://github.com/scrooloose/nerdtree/pull/872)
+    - Make sure the path to the bookmarks file exists before writing it. (PhilRunninger) [#871](https://github.com/scrooloose/nerdtree/pull/871)
+    - Unzoom NERDTree when opening a file (PhilRunninger) [#870](https://github.com/scrooloose/nerdtree/pull/870)
+    - Support unusual characters in file and directory names (PhilRunninger) [#868](https://github.com/scrooloose/nerdtree/pull/868)
+    - Reword renamed-buffer prompt to be more clear (aflock) [#867](https://github.com/scrooloose/nerdtree/pull/867)
+    - Default to placing cursor on root when closing bookmark table (lifecrisis) [#866](https://github.com/scrooloose/nerdtree/pull/866)
+    - Fix issues with sorting of nodes (PhilRunninger) [#856](https://github.com/scrooloose/nerdtree/pull/856)
+    - Better OSX detection (bubba-h57) [#853](https://github.com/scrooloose/nerdtree/pull/853)
+    - Bugfix - ensure keymaps dictionary exists before using it (mnussbaum) [#852](https://github.com/scrooloose/nerdtree/pull/852)
+    - Decrease startup-time by avoiding linear-time iteration over key mappings (mnussbaum) [#851](https://github.com/scrooloose/nerdtree/pull/851)
+    - Add code to sort mappings in quickhelp (lifecrisis) [#849](https://github.com/scrooloose/nerdtree/pull/849)
+    - Use ":clearjumps" in new NERDTree windows (lifecrisis) [#844](https://github.com/scrooloose/nerdtree/pull/844)
+    - Like m-c did before, create parent directories if needed on m-m. (PhilRunninger) [#840](https://github.com/scrooloose/nerdtree/pull/840)
+    - BUGFIX: Repair a problem with the `'u'` mapping. (lifecrisis) [#838](https://github.com/scrooloose/nerdtree/pull/838)
+    - Make the NERDTree buffer writable when rendering it. (PhilRunninger) [#837](https://github.com/scrooloose/nerdtree/pull/837)
+    - Code cleanup: Remove unsupported bookmark table mappings (lifecrisis) [#835](https://github.com/scrooloose/nerdtree/pull/835)
+    - Replace strcharpart() with substitute() for backward compatibility (bravestarr) [#834](https://github.com/scrooloose/nerdtree/pull/834)
+    - Fixed error `unknown function strcharpart` for older versions of Vim (hav4ik) [#833](https://github.com/scrooloose/nerdtree/pull/833)
+    - Clear output when NERDTree menu is aborted (lifecrisis) [#832](https://github.com/scrooloose/nerdtree/pull/832)
+    - Display a path with multi-byte characters correctly when it is truncated (bravestarr) [#830](https://github.com/scrooloose/nerdtree/pull/830)
+    - Support revealing file and executing file with xdg-open for Linux (ngnmhieu) [#824](https://github.com/scrooloose/nerdtree/pull/824)
+    - If node isn't open, count children on disk before deleting. (PhilRunninger) [#822](https://github.com/scrooloose/nerdtree/pull/822)
+    - Add new variable g:NERDTreeRemoveFileCmd (kutsan) [#816](https://github.com/scrooloose/nerdtree/pull/816)
+    - Use a better check for existence of the NERDTree buffer. (PhilRunninger) [#814](https://github.com/scrooloose/nerdtree/pull/814)
+    - Fix focussing previous buffer when closing NERDTree (mrubli) [#801](https://github.com/scrooloose/nerdtree/pull/801)
+    - Update the docs for "NERDTreeStatusline" (lifecrisis) [#796](https://github.com/scrooloose/nerdtree/pull/796)
+    - BUGFIX: Unstable behavior in the "getPath()" method (lifecrisis) [#795](https://github.com/scrooloose/nerdtree/pull/795)
+    - Revert the bugfix from pull request [#785](https://github.com/scrooloose/nerdtree/pull/785) (lifecrisis) [#794](https://github.com/scrooloose/nerdtree/pull/794)
+    - BUGFIX: Allow ":NERDTreeFind" to discover hidden files (lifecrisis) [#786](https://github.com/scrooloose/nerdtree/pull/786)
+    - BUGFIX: Allow ":NERDTreeFind" to reveal new files (lifecrisis) [#785](https://github.com/scrooloose/nerdtree/pull/785)
+    - Add modelines (lifecrisis) [#782](https://github.com/scrooloose/nerdtree/pull/782)
+    - Change the type of completion used by NERDTreeFind (lifecrisis) [#781](https://github.com/scrooloose/nerdtree/pull/781)
+    - change NERDTreeFind with args (zhenyangze) [#778](https://github.com/scrooloose/nerdtree/pull/778)
+    - Style Choice: Using confirm() when deleting a bookmark (lifecrisis) [#777](https://github.com/scrooloose/nerdtree/pull/777)
+    - remove useless substitute when `file =~# "/$"` (skyblueee) [#773](https://github.com/scrooloose/nerdtree/pull/773)
+    - remove useless removeLeadingSpaces in _stripMarkup (skyblueee) [#772](https://github.com/scrooloose/nerdtree/pull/772)
+    - Make the "o" mapping consistent with "x" (lifecrisis) [#769](https://github.com/scrooloose/nerdtree/pull/769)
+    - Fix a problem with the "x" handler (lifecrisis) [#768](https://github.com/scrooloose/nerdtree/pull/768)
+    - Clean up the handler for the "x" mapping (lifecrisis) [#767](https://github.com/scrooloose/nerdtree/pull/767)
+    - Revert change to tab opening method (lifecrisis) [#766](https://github.com/scrooloose/nerdtree/pull/766)
+    - BUGFIX: Add back support for "b:NERDTreeRoot" (lifecrisis) [#765](https://github.com/scrooloose/nerdtree/pull/765)
+    - Fix broken "t" and "T" mappings, tabs now open at end (lifecrisis) [#759](https://github.com/scrooloose/nerdtree/pull/759)
+    - Update doc with already existing mapping variables (asnr) [#699](https://github.com/scrooloose/nerdtree/pull/699)
+    - Fix the broken g:NERDTreeBookmarksSort setting (lifecrisis) [#696](https://github.com/scrooloose/nerdtree/pull/696)
+    - Correct NERDTreeIgnore pattern in doc (cntoplolicon) [#648](https://github.com/scrooloose/nerdtree/pull/648)
+    - Remove empty segments when splitting path (sooth-sayer) [#574](https://github.com/scrooloose/nerdtree/pull/574)
+    - Suppress autocmds less agressively (wincent) [#578](https://github.com/scrooloose/nerdtree/pull/578) [#691](https://github.com/scrooloose/nerdtree/pull/691)
     - Add an Issues template to ask for more info initially.
-    - Fix markdown headers in readme (josephfrazier) #676
-    - Don't touch @o and @h registers when rendering
-    - Fix bug with files and directories with dollar signs (alegen) #649
-    - Reuse/reopen existing window trees where possible #244
+    - Fix markdown headers in readme (josephfrazier) [#676](https://github.com/scrooloose/nerdtree/pull/676)
+    - Don't touch `@o` and `@h` registers when rendering
+    - Fix bug with files and directories with dollar signs (alegen) [#649](https://github.com/scrooloose/nerdtree/pull/649)
+    - Reuse/reopen existing window trees where possible [#244](https://github.com/scrooloose/nerdtree/pull/244)
     - Remove NERDTree.previousBuf()
-    - Change color of arrow (Leeiio) #630
-    - Improved a tip in README.markdown (ggicci) #628
-    - Shorten delete confimration of empty directory to `y` (mikeperri) #530
-    - Fix API call to open directory tree in window (devm33) #533
-    - Change default arrows on non-Windows platforms (gwilk) #546
-    - Update to README - combine cd and git clone (zwhitchcox) #584
-    - Update to README - Tip: start NERDTree when vim starts (therealplato) #593 
-    - Escape filename when moving an open buffer (zacharyvoase) #595
-    - Fixed incorrect :helptags command in README (curran) #619
-    - Fixed incomplete escaping of folder arrows (adityanatraj) #548
-    - Added NERDTreeCascadeSingleChildDir option (juanibiapina) #558
+    - Change color of arrow (Leeiio) [#630](https://github.com/scrooloose/nerdtree/pull/630)
+    - Improved a tip in README.markdown (ggicci) [#628](https://github.com/scrooloose/nerdtree/pull/628)
+    - Shorten delete confimration of empty directory to `y` (mikeperri) [#530](https://github.com/scrooloose/nerdtree/pull/530)
+    - Fix API call to open directory tree in window (devm33) [#533](https://github.com/scrooloose/nerdtree/pull/533)
+    - Change default arrows on non-Windows platforms (gwilk) [#546](https://github.com/scrooloose/nerdtree/pull/546)
+    - Update to README - combine cd and git clone (zwhitchcox) [#584](https://github.com/scrooloose/nerdtree/pull/584)
+    - Update to README - Tip: start NERDTree when vim starts (therealplato) [#593](https://github.com/scrooloose/nerdtree/pull/593)
+    - Escape filename when moving an open buffer (zacharyvoase) [#595](https://github.com/scrooloose/nerdtree/pull/595)
+    - Fixed incorrect :helptags command in README (curran) [#619](https://github.com/scrooloose/nerdtree/pull/619)
+    - Fixed incomplete escaping of folder arrows (adityanatraj) [#548](https://github.com/scrooloose/nerdtree/pull/548)
+    - Added NERDTreeCascadeSingleChildDir option (juanibiapina) [#558](https://github.com/scrooloose/nerdtree/pull/558)
     - Replace strchars() with backward compatible workaround.
-    - Add support for copy command in Windows (SkylerLipthay) #231
+    - Add support for copy command in Windows (SkylerLipthay) [#231](https://github.com/scrooloose/nerdtree/pull/231)
     - Fixed typo in README.markdown - :Helptags -> :helptags
     - Rename "primary" and "secondary" trees to "tab" and "window" trees.
     - Move a bunch of buffer level variables into the NERDTree and UI classes.
-    - Display cascading dirs on one line to save vertical/horizontal space (@matt-gardner: brainstorming/testing)
+    - Display cascading dirs on one line to save vertical/horizontal space (matt-gardner: brainstorming/testing)
     - Remove the old style UI - Remove `NERDTreeDirArrows` option.
     - On windows default to + and ~ for expand/collapse directory symbols.
     - Lots more refactoring. Move a bunch of b: level vars into b:NERDTree and friends.
@@ -128,7 +147,7 @@
 - Refactor the code significantly:
     * Break the classes out into their own files.
     * Make the majority of the code OO - previously large parts were effectively a tangle of "global" methods.
-- Add an API to assign flags to nodes. This allows VCS plugins like https://github.com/Xuyuanp/nerdtree-git-plugin to exist. Thanks to @Xuyuanp for helping design/test/build said API.
+- Add an API to assign flags to nodes. This allows VCS plugins like https://github.com/Xuyuanp/nerdtree-git-plugin to exist. Thanks to **Xuyuanp** for helping design/test/build said API.
 - add `scope` argument to the key map API see :help NERDTreeAddKeyMap()
 - add magic [[dir]] and [[file]] flags to NERDTreeIgnore
 - add support for custom path filters. See :help NERDTreeAddPathFilter()

autoload/nerdtree.vim

@@ -3,8 +3,14 @@ if exists("g:loaded_nerdtree_autoload")
 endif
 let g:loaded_nerdtree_autoload = 1
 
+let s:rootNERDTreePath = resolve(expand("<sfile>:p:h:h"))
+
+"FUNCTION: nerdtree#version(...) {{{1
+"  If any value is given as an argument, the entire line of text from the
+"  change log is shown for the current version; otherwise, only the version
+"  number is shown.
 function! nerdtree#version(...)
-    let l:changelog = readfile(expand("<sfile>:p:h")."/CHANGELOG.md")
+    let l:changelog = readfile(join([s:rootNERDTreePath, "CHANGELOG.md"], nerdtree#slash()))
     let l:text = 'Unknown'
     let l:line = 0
     while l:line <= len(l:changelog)
@@ -21,6 +27,20 @@ endfunction
 " SECTION: General Functions {{{1
 "============================================================
 
+"FUNCTION: nerdtree#slash() {{{2
+function! nerdtree#slash()
+
+    if nerdtree#runningWindows()
+        if exists('+shellslash') && &shellslash
+            return '/'
+        endif
+
+        return '\'
+    endif
+
+    return '/'
+endfunction
+
 "FUNCTION: nerdtree#and(x,y) {{{2
 " Implements and() function for Vim <= 7.2
 function! nerdtree#and(x,y)
@@ -35,7 +55,6 @@ function! nerdtree#and(x,y)
             if (l:x % 2) && (l:y % 2)
                 let l:result += float2nr(pow(2, l:n))
             endif
-            echomsg l:x . ", " . l:y . " => " l:result
             let l:x = float2nr(l:x / 2)
             let l:y = float2nr(l:y / 2)
             let l:n += 1
@@ -140,13 +159,13 @@ function! nerdtree#deprecated(func, ...)
     endif
 endfunction
 
-" FUNCTION: nerdtree#exec(cmd) {{{2
-" Same as :exec cmd but with eventignore set for the duration
-" to disable the autocommands used by NERDTree (BufEnter,
-" BufLeave and VimEnter)
-function! nerdtree#exec(cmd)
+" FUNCTION: nerdtree#exec(cmd, ignoreAll) {{{2
+" Same as :exec cmd but, if ignoreAll is TRUE, set eventignore=all for the duration
+function! nerdtree#exec(cmd, ignoreAll)
     let old_ei = &ei
-    set ei=BufEnter,BufLeave,VimEnter
+    if a:ignoreAll
+        set ei=all
+    endif
     exec a:cmd
     let &ei = old_ei
 endfunction

autoload/nerdtree/ui_glue.vim

@@ -17,6 +17,7 @@ function! nerdtree#ui_glue#createDefaultBindings()
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCustomOpen, 'scope':'FileNode', 'callback': s."customOpenFile"})
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCustomOpen, 'scope':'DirNode', 'callback': s."customOpenDir"})
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCustomOpen, 'scope':'Bookmark', 'callback': s."customOpenBookmark"})
+    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCustomOpen, 'scope':'all', 'callback': s."activateAll" })
 
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "DirNode", 'callback': s."activateDirNode" })
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "FileNode", 'callback': s."activateFileNode" })
@@ -71,6 +72,7 @@ function! nerdtree#ui_glue#createDefaultBindings()
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenInTabSilent, 'scope': 'Bookmark', 'callback': s . 'openInNewTabSilent' })
 
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenExpl, 'scope': "DirNode", 'callback': s."openExplorer" })
+    call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenExpl, 'scope': "FileNode", 'callback': s."openExplorer" })
 
     call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapDeleteBookmark, 'scope': "Bookmark", 'callback': s."deleteBookmark" })
 endfunction
@@ -94,7 +96,7 @@ endfunction
 "FUNCTION: s:customOpenBookmark() {{{1
 " Open bookmark node with the "custom" key, initially <CR>.
 function! s:customOpenBookmark(node)
-    if node.isDirectory
+    if a:node.path.isDirectory
         call a:node.activate(b:NERDTree, s:initCustomOpenArgs().dir)
     else
         call a:node.activate(b:NERDTree, s:initCustomOpenArgs().file)
@@ -282,6 +284,9 @@ endfunction
 " FUNCTION: s:findAndRevealPath(pathStr) {{{1
 function! s:findAndRevealPath(pathStr)
     let l:pathStr = !empty(a:pathStr) ? a:pathStr : expand('%:p')
+    if !filereadable(l:pathStr)
+        let l:pathStr = fnamemodify(l:pathStr, ':h')
+    endif
 
     if empty(l:pathStr)
         call nerdtree#echoWarning('no file for the current buffer')
@@ -573,11 +578,11 @@ function! s:refreshRoot()
     call nerdtree#echo("Refreshing the root node. This could take a while...")
 
     let l:curWin = winnr()
-    call nerdtree#exec(g:NERDTree.GetWinNum() . "wincmd w")
+    call nerdtree#exec(g:NERDTree.GetWinNum() . "wincmd w", 1)
     call b:NERDTree.root.refresh()
     call b:NERDTree.render()
     redraw
-    call nerdtree#exec(l:curWin . "wincmd w")
+    call nerdtree#exec(l:curWin . "wincmd w", 1)
     call nerdtree#echo("")
 endfunction
 

doc/NERDTree.txt

@@ -1043,28 +1043,31 @@ window.  Use one of the follow lines for this setting: >
 Values: a list of regular expressions.
 Default: ['\/$', '*', '\.swp$',  '\.bak$', '\~$']
 
-This setting is a list of regular expressions which are used to specify the
-order of nodes under their parent.
+This setting is a list of regular expressions which are used to group or sort
+the nodes under their parent.
 
 For example, if the setting is: >
     ['\.vim$', '\.c$', '\.h$', '*', 'foobar']
 <
-then all .vim files will be placed at the top, followed by all .c files then
+then all .vim files will be grouped 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
 doesn't 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.
+If no star is present in NERDTreeSortOrder, then one is automatically
+appended to the end of the list.
 
 The regex '\/$' should be used to match directory nodes.
 
-A special flag can be used to sort by the modification timestamps of files and
-directories. It is either '[[timestamp]]' for ascending, or '[[-timestamp]]'
-for descending. If placed at the beginning of the list, files and directories
-are sorted by timestamp, and then by the remaining items in the sort order
-list. If this flag is in any other position of the list, timestamp sorting is
-done secondarily. See examples 4, 5, and 6 below.
+Files can also be sorted by 1) the modification timestamp, 2) the size, or 3)
+the extension. Directories are always sorted by name. To accomplish this, the
+following special flags are used:
+  [[timestamp]]   [[-timestamp]]   [[size]]   [[-size]]   [[extension]]
+The hyphen specifies a descending sort; extensions are sorted in ascending
+order only. If placed at the beginning of the list, files are sorted according
+to these flags first, and then grouped by the remaining items in the list. If
+the flags are in any other position of the list, this special sorting is done
+secondarily. See examples 4, 5, and 6 below.
 
 After this sorting is done, the files in each group are sorted alphabetically.
 
@@ -1072,20 +1075,20 @@ Examples: >
     (1) ['*', '\/$']
     (2) []
     (3) ['\/$', '\.rb$', '\.php$', '*', '\.swp$',  '\.bak$', '\~$']
-    (4) ['[[timestamp]]']
-    (5) ['\/$', '*', '[[-timestamp]]']
-    (6) ['\.md$', '\.c$', '[[-timestamp]]', '*']
+    (4) ['[[-size]]']
+    (5) ['\/$', '*', '[[timestamp]]']
+    (6) ['foo','\/$','[[extension]]']
 <
 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.
-4. All files and directories are sorted by timestamp, oldest first. If any
-   files have identical timestamps, they are sorted alphabetically.
-5. Directories are first, newest to oldest, then everything else, newest to
-   oldest.
-6. Markdown files first, followed by C source files, then everything else.
-   Each group is shown newest to oldest.
+4. Everything is sorted by size, largest to smallest, with directories
+   considered to have size 0 bytes.
+5. Directories will appear first alphabetically, followed by files, sorted by
+   timestamp, oldest first.
+6. Files and directories matching 'foo' first, followed by other directories,
+   then all other files. Each section of files is sorted by file extension.
 
 ------------------------------------------------------------------------------
                                                             *NERDTreeStatusline*

lib/nerdtree/bookmark.vim

@@ -159,8 +159,8 @@ endfunction
 " FUNCTION: s:Edit() {{{1
 " opens the NERDTreeBookmarks file for manual editing
 function! s:Bookmark.Edit()
-    execute "wincmd w"
-    execute "edit ".g:NERDTreeBookmarksFile
+    call nerdtree#exec("wincmd w", 1)
+    call nerdtree#exec("edit ".g:NERDTreeBookmarksFile, 1)
 endfunction
 
 " FUNCTION: Bookmark.getNode(nerdtree, searchFromAbsoluteRoot) {{{1

lib/nerdtree/menu_controller.vim

@@ -31,7 +31,11 @@ function! s:MenuController.showMenu()
         let l:done = 0
 
         while !l:done
-            redraw!
+            if has('nvim')
+                mode
+            else
+                redraw!
+            endif
             call self._echoPrompt()
 
             let l:key = nr2char(getchar())
@@ -58,13 +62,14 @@ function! s:MenuController._echoPrompt()
 
     if self.isMinimal()
         let selection = self.menuItems[self.selection].text
+        let keyword = matchstr(selection, "\([^ ]*")
 
         let shortcuts = map(copy(self.menuItems), "v:val['shortcut']")
-        let shortcuts[self.selection] = " " . split(selection)[0] . " "
+        let shortcuts[self.selection] = " " . keyword . " "
 
         echo "Menu: [" . join(shortcuts, ",") . "] (" . navHelp . " or shortcut): "
     else
-        echo "NERDTree Menu. " . navHelp . " . or the shortcuts indicated"
+        echo "NERDTree Menu. " . navHelp . ", or the shortcuts indicated"
         echo "========================================================="
 
         for i in range(0, len(self.menuItems)-1)

lib/nerdtree/nerdtree.vim

@@ -44,19 +44,19 @@ function! s:NERDTree.Close()
         let l:useWinId = exists('*win_getid') && exists('*win_gotoid')
 
         if winnr() == s:NERDTree.GetWinNum()
-            call nerdtree#exec("wincmd p")
+            call nerdtree#exec("wincmd p", 1)
             let l:activeBufOrWin = l:useWinId ? win_getid() : bufnr("")
-            call nerdtree#exec("wincmd p")
+            call nerdtree#exec("wincmd p", 1)
         else
             let l:activeBufOrWin = l:useWinId ? win_getid() : bufnr("")
         endif
 
-        call nerdtree#exec(s:NERDTree.GetWinNum() . " wincmd w")
-        close
+        call nerdtree#exec(s:NERDTree.GetWinNum() . " wincmd w", 1)
+        call nerdtree#exec("close", 0)
         if l:useWinId
-            call nerdtree#exec("call win_gotoid(" . l:activeBufOrWin . ")")
+            call nerdtree#exec("call win_gotoid(" . l:activeBufOrWin . ")", 0)
         else
-            call nerdtree#exec(bufwinnr(l:activeBufOrWin) . " wincmd w")
+            call nerdtree#exec(bufwinnr(l:activeBufOrWin) . " wincmd w", 0)
         endif
     else
         close
@@ -98,7 +98,7 @@ endfunction
 "Places the cursor in the nerd tree window
 function! s:NERDTree.CursorToTreeWin()
     call g:NERDTree.MustBeOpen()
-    call nerdtree#exec(g:NERDTree.GetWinNum() . "wincmd w")
+    call nerdtree#exec(g:NERDTree.GetWinNum() . "wincmd w", 1)
 endfunction
 
 " Function: s:NERDTree.ExistsForBuffer()   {{{1
@@ -148,12 +148,19 @@ function! s:NERDTree.GetWinNum()
         return bufwinnr(t:NERDTreeBufName)
     endif
 
+    " If WindowTree, there is no t:NERDTreeBufName variable. Search all windows.
+    for w in range(1,winnr('$'))
+        if bufname(winbufnr(w)) =~# '^' . g:NERDTreeCreator.BufNamePrefix() . '\d\+$'
+            return w
+        endif
+    endfor
+
     return -1
 endfunction
 
 "FUNCTION: s:NERDTree.IsOpen() {{{1
 function! s:NERDTree.IsOpen()
-    return s:NERDTree.GetWinNum() != -1 || bufname('%') =~# '^' . g:NERDTreeCreator.BufNamePrefix() . '\d\+$'
+    return s:NERDTree.GetWinNum() != -1
 endfunction
 
 "FUNCTION: s:NERDTree.isTabTree() {{{1

lib/nerdtree/opener.vim

@@ -71,9 +71,9 @@ endfunction
 function! s:Opener._gotoTargetWin()
     if b:NERDTree.isWinTree()
         if self._where == 'v'
-            vsplit
+            call self._newVSplit()
         elseif self._where == 'h'
-            split
+            call self._newSplit()
         elseif self._where == 't'
             tabnew
         endif
@@ -107,10 +107,10 @@ function! s:Opener._isWindowUsable(winnumber)
     endif
 
     let oldwinnr = winnr()
-    call nerdtree#exec(a:winnumber . "wincmd p")
+    call nerdtree#exec(a:winnumber . "wincmd p", 1)
     let specialWindow = getbufvar("%", '&buftype') != '' || getwinvar('%', '&previewwindow')
     let modified = &modified
-    call nerdtree#exec(oldwinnr . "wincmd p")
+    call nerdtree#exec(oldwinnr . "wincmd p", 1)
 
     "if its a special window e.g. quickfix or another explorer plugin then we
     "have to split
@@ -153,44 +153,18 @@ endfunction
 
 " FUNCTION: Opener._newSplit() {{{1
 function! s:Opener._newSplit()
-    " Save the user's settings for splitbelow and splitright
-    let savesplitbelow=&splitbelow
-    let savesplitright=&splitright
-
-    " 'there' will be set to a command to move from the split window
-    " back to the explorer window
-    "
-    " 'back' will be set to a command to move from the explorer window
-    " back to the newly split window
-    "
-    " 'right' and 'below' will be set to the settings needed for
-    " splitbelow and splitright IF the explorer is the only window.
-    "
-    let there= g:NERDTreeWinPos ==# "left" ? "wincmd h" : "wincmd l"
-    let back = g:NERDTreeWinPos ==# "left" ? "wincmd l" : "wincmd h"
-    let right= g:NERDTreeWinPos ==# "left"
-    let below=0
-
-    " Attempt to go to adjacent window
-    call nerdtree#exec(back)
-
     let onlyOneWin = (winnr("$") ==# 1)
-
-    " If no adjacent window, set splitright and splitbelow appropriately
+    let savesplitright = &splitright
     if onlyOneWin
-        let &splitright=right
-        let &splitbelow=below
-    else
-        " found adjacent window - invert split direction
-        let &splitright=!right
-        let &splitbelow=!below
+        let &splitright = (g:NERDTreeWinPos ==# "left")
     endif
-
+    " If only one window (ie. NERDTree), split vertically instead.
     let splitMode = onlyOneWin ? "vertical" : ""
 
     " Open the new window
     try
-        exec(splitMode." sp ")
+        call nerdtree#exec('wincmd p', 1)
+        call nerdtree#exec(splitMode . " split",1)
     catch /^Vim\%((\a\+)\)\=:E37/
         call g:NERDTree.CursorToTreeWin()
         throw "NERDTree.FileAlreadyOpenAndModifiedError: ". self._path.str() ." is already open and modified."
@@ -200,14 +174,12 @@ function! s:Opener._newSplit()
 
     "resize the tree window if no other window was open before
     if onlyOneWin
-        let size = exists("b:NERDTreeOldWindowSize") ? b:NERDTreeOldWindowSize : g:NERDTreeWinSize
-        call nerdtree#exec(there)
-        exec("silent ". splitMode ." resize ". size)
-        call nerdtree#exec('wincmd p')
+        let size = exists('b:NERDTreeOldWindowSize') ? b:NERDTreeOldWindowSize : g:NERDTreeWinSize
+        call nerdtree#exec('wincmd p', 1)
+        call nerdtree#exec('silent '. splitMode .' resize '. size, 1)
+        call nerdtree#exec('wincmd p', 0)
     endif
 
-    " Restore splitmode settings
-    let &splitbelow=savesplitbelow
     let &splitright=savesplitright
 endfunction
 
@@ -215,12 +187,15 @@ endfunction
 function! s:Opener._newVSplit()
     let l:winwidth = winwidth('.')
 
-    if winnr('$') == 1
+    let onlyOneWin = (winnr("$") ==# 1)
+    let savesplitright = &splitright
+    if onlyOneWin
+        let &splitright = (g:NERDTreeWinPos ==# "left")
         let l:winwidth = g:NERDTreeWinSize
     endif
 
-    call nerdtree#exec('wincmd p')
-    vnew
+    call nerdtree#exec('wincmd p', 1)
+    call nerdtree#exec('vnew', 1)
 
     let l:currentWindowNumber = winnr()
 
@@ -228,7 +203,8 @@ function! s:Opener._newVSplit()
     call g:NERDTree.CursorToTreeWin()
     execute 'silent vertical resize ' . l:winwidth
 
-    call nerdtree#exec(l:currentWindowNumber . 'wincmd w')
+    call nerdtree#exec(l:currentWindowNumber . 'wincmd w', 0)
+    let &splitright=savesplitright
 endfunction
 
 " FUNCTION: Opener.open(target) {{{1
@@ -290,9 +266,9 @@ function! s:Opener._previousWindow()
     else
         try
             if !self._isWindowUsable(winnr("#"))
-                call nerdtree#exec(self._firstUsableWindow() . "wincmd w")
+                call nerdtree#exec(self._firstUsableWindow() . "wincmd w", 1)
             else
-                call nerdtree#exec('wincmd p')
+                call nerdtree#exec('wincmd p', 1)
             endif
         catch /^Vim\%((\a\+)\)\=:E37/
             call g:NERDTree.CursorToTreeWin()
@@ -305,8 +281,8 @@ endfunction
 
 " FUNCTION: Opener._restoreCursorPos() {{{1
 function! s:Opener._restoreCursorPos()
-    call nerdtree#exec(self._tabnr . 'tabnext')
-    call nerdtree#exec(bufwinnr(self._bufnr) . 'wincmd w')
+    call nerdtree#exec(self._tabnr . 'tabnext', 1)
+    call nerdtree#exec(bufwinnr(self._bufnr) . 'wincmd w', 1)
 endfunction
 
 " FUNCTION: Opener._reuseWindow() {{{1
@@ -321,7 +297,7 @@ function! s:Opener._reuseWindow()
     "check the current tab for the window
     let winnr = bufwinnr('^' . self._path.str() . '$')
     if winnr != -1
-        call nerdtree#exec(winnr . "wincmd w")
+        call nerdtree#exec(winnr . "wincmd w", 0)
         call self._checkToCloseTree(0)
         return 1
     endif
@@ -334,9 +310,9 @@ function! s:Opener._reuseWindow()
     let tabnr = self._path.tabnr()
     if tabnr
         call self._checkToCloseTree(1)
-        call nerdtree#exec(tabnr . 'tabnext')
+        call nerdtree#exec(tabnr . 'tabnext', 1)
         let winnr = bufwinnr('^' . self._path.str() . '$')
-        call nerdtree#exec(winnr . "wincmd w")
+        call nerdtree#exec(winnr . "wincmd w", 0)
         return 1
     endif
 

lib/nerdtree/path.vim

@@ -380,7 +380,8 @@ endfunction
 function! s:Path.getSortOrderIndex()
     let i = 0
     while i < len(g:NERDTreeSortOrder)
-        if  self.getLastPathComponent(1) =~# g:NERDTreeSortOrder[i]
+        if g:NERDTreeSortOrder[i] !~? '\[\[-\?\(timestamp\|size\|extension\)\]\]' &&
+        \ self.getLastPathComponent(1) =~# g:NERDTreeSortOrder[i]
             return i
         endif
         let i = i + 1
@@ -407,15 +408,26 @@ endfunction
 " FUNCTION: Path.getSortKey() {{{1
 " returns a key used in compare function for sorting
 function! s:Path.getSortKey()
-    let l:ascending = index(g:NERDTreeSortOrder,'[[timestamp]]')
-    let l:descending = index(g:NERDTreeSortOrder,'[[-timestamp]]')
-    if !exists("self._sortKey") || g:NERDTreeSortOrder !=# g:NERDTreeOldSortOrder || l:ascending >= 0 || l:descending >= 0
-        let self._sortKey = [self.getSortOrderIndex()]
+    if !exists("self._sortKey") || g:NERDTreeSortOrder !=# g:NERDTreeOldSortOrder
+        " Look for file metadata tags: [[timestamp]], [[extension]], [[size]]
+        let metadata = []
+        for tag in g:NERDTreeSortOrder
+            if tag =~? '\[\[-\?timestamp\]\]'
+                let metadata += [self.isDirectory ? 0 : getftime(self.str()) * (tag =~ '-' ? -1 : 1)]
+            elseif tag =~? '\[\[-\?size\]\]'
+                let metadata += [self.isDirectory ? 0 : getfsize(self.str()) * (tag =~ '-' ? -1 : 1)]
+            elseif tag =~? '\[\[extension\]\]'
+                let extension = matchstr(self.getLastPathComponent(0), '[^.]\+\.\zs[^.]\+$')
+                let metadata += [self.isDirectory ? '' : (extension == '' ? nr2char(str2nr('0x10ffff',16)) : extension)]
+            endif
+        endfor
 
-        if l:descending >= 0
-            call insert(self._sortKey, -getftime(self.str()), l:descending == 0 ? 0 : len(self._sortKey))
-        elseif l:ascending >= 0
-            call insert(self._sortKey, getftime(self.str()), l:ascending == 0 ? 0 : len(self._sortKey))
+        if g:NERDTreeSortOrder[0] =~ '\[\[.*\]\]'
+            " Apply tags' sorting first if specified first.
+            let self._sortKey = metadata + [self.getSortOrderIndex()]
+        else
+            " Otherwise, do regex grouping first.
+            let self._sortKey = [self.getSortOrderIndex()] + metadata
         endif
 
         let path = self.getLastPathComponent(1)

lib/nerdtree/tree_dir_node.vim

@@ -523,7 +523,8 @@ endfunction
 " Open an explorer window for this node in the previous window. The explorer
 " can be a NERDTree window or a netrw window.
 function! s:TreeDirNode.openExplorer()
-    call self.open({'where': 'p'})
+    execute "wincmd p"
+    execute "edit ".self.path.str({'format':'Edit'})
 endfunction
 
 " FUNCTION: TreeDirNode.openInNewTab(options) {{{1

lib/nerdtree/tree_file_node.vim

@@ -246,6 +246,12 @@ function! s:TreeFileNode.openInNewTab(options)
     call self.open(extend({'where': 't'}, a:options))
 endfunction
 
+" FUNCTION: TreeFileNode.openExplorer()
+function! s:TreeFileNode.openExplorer()
+    execute "wincmd p"
+    execute "edit ".self.path.getParent().str({'format':'Edit'})
+endfunction
+
 " FUNCTION: TreeFileNode.putCursorHere(isJump, recurseUpward){{{1
 " Places the cursor on the line number this node is rendered on
 "

lib/nerdtree/ui.vim

@@ -254,7 +254,7 @@ endfunction
 " gets the line number of the root node
 function! s:UI.getRootLineNum()
     let rootLine = 1
-    while getline(rootLine) !~# '^\(/\|<\)'
+    while rootLine <= line('$') && getline(rootLine) !~# '^\(/\|<\)'
         let rootLine = rootLine + 1
     endwhile
     return rootLine
@@ -340,7 +340,7 @@ function! s:UI.restoreScreenState()
     if !has_key(self, '_screenState')
         return
     endif
-    exec("silent vertical resize " . self._screenState['oldWindowSize'])
+    call nerdtree#exec("silent vertical resize " . self._screenState['oldWindowSize'], 1)
 
     let old_scrolloff=&scrolloff
     let &scrolloff=0
@@ -360,7 +360,7 @@ function! s:UI.saveScreenState()
     let self._screenState['oldPos'] = getpos(".")
     let self._screenState['oldTopLine'] = line("w0")
     let self._screenState['oldWindowSize']= winwidth("")
-    call nerdtree#exec(win . "wincmd w")
+    call nerdtree#exec(win . "wincmd w", 1)
 endfunction
 
 " FUNCTION: s:UI.setShowHidden(val) {{{1
@@ -506,10 +506,10 @@ endfunction
 function! s:UI.toggleZoom()
     if exists("b:NERDTreeZoomed") && b:NERDTreeZoomed
         let size = exists("b:NERDTreeOldWindowSize") ? b:NERDTreeOldWindowSize : g:NERDTreeWinSize
-        exec "silent vertical resize ". size
+        call nerdtree#exec("silent vertical resize ". size, 1)
         let b:NERDTreeZoomed = 0
     else
-        exec "vertical resize ". get(g:, 'NERDTreeWinSizeMax', '')
+        call nerdtree#exec("vertical resize ". get(g:, 'NERDTreeWinSizeMax', ''), 1)
         let b:NERDTreeZoomed = 1
     endif
 endfunction

nerdtree_plugin/fs_menu.vim

@@ -114,14 +114,14 @@ function! s:promptToDelBuffer(bufnum, msg)
             let l:listedBufferCount = 0
         endif
         if l:listedBufferCount > 1
-            exec "tabdo windo if winbufnr(0) == " . a:bufnum . " | exec ':bnext! ' | endif"
+            call nerdtree#exec("tabdo windo if winbufnr(0) == " . a:bufnum . " | exec ':bnext! ' | endif", 1)
         else
-            exec "tabdo windo if winbufnr(0) == " . a:bufnum . " | exec ':enew! ' | endif"
+            call nerdtree#exec("tabdo windo if winbufnr(0) == " . a:bufnum . " | exec ':enew! ' | endif", 1)
         endif
-        exec "tabnext " . s:originalTabNumber
-        exec s:originalWindowNumber . "wincmd w"
+        call nerdtree#exec("tabnext " . s:originalTabNumber, 1)
+        call nerdtree#exec(s:originalWindowNumber . "wincmd w", 1)
         " 3. We don't need a previous buffer anymore
-        exec "bwipeout! " . a:bufnum
+        call nerdtree#exec("bwipeout! " . a:bufnum, 0)
     endif
 endfunction
 
@@ -141,17 +141,17 @@ function! s:renameBuffer(bufNum, newNodeName, isDirectory)
         let editStr = g:NERDTreePath.New(a:newNodeName).str({'format': 'Edit'})
     endif
     " 1. ensure that a new buffer is loaded
-    exec "badd " . quotedFileName
+    call nerdtree#exec("badd " . quotedFileName, 1)
     " 2. ensure that all windows which display the just deleted filename
     " display a buffer for a new filename.
     let s:originalTabNumber = tabpagenr()
     let s:originalWindowNumber = winnr()
-    exec "tabdo windo if winbufnr(0) == " . a:bufNum . " | exec ':e! " . editStr . "' | endif"
-    exec "tabnext " . s:originalTabNumber
-    exec s:originalWindowNumber . "wincmd w"
+    call nerdtree#exec("tabdo windo if winbufnr(0) == " . a:bufNum . " | exec ':e! " . editStr . "' | endif", 1)
+    call nerdtree#exec("tabnext " . s:originalTabNumber, 1)
+    call nerdtree#exec(s:originalWindowNumber . "wincmd w", 1)
     " 3. We don't need a previous buffer anymore
     try
-        exec "confirm bwipeout " . a:bufNum
+        call nerdtree#exec("confirm bwipeout " . a:bufNum, 0)
     catch
         " This happens when answering Cancel if confirmation is needed. Do nothing.
     endtry