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Chris Patuzzo 84737f2ebe Add a NERDTreeMinimalMenu feature (#938)
* Extract the menu action prompts to a function

* Add a NERDTreeMinimalMenu configuration option

If this option is set, Vim’s command line displays
a single-line version of the menu:

Which action? (a*/m/d/r/o/q/c/l):

Pressing ‘a’ will call the ‘add child node’ menu
item as that is its shortcut.

The * denotes the position of the currently
selected menu item which can be changed with
NERDTreeMenuDown and Up in the usual way.

The user may wish to set these to <left>, <right>
or h, l if they prefer.

* Minimise the text once a menu item is chosen

If NERDTreeMinimalMenu is set, then echo a single
line prompt after the menu item is chosen. This
reduces noise for users who are already familiar
with how the menu works and prevents Vim scrolling
down to accommodate the menu text.

If the directory is non-empty we display
‘Delete directory?’ instead of ‘Delete?’ and the
user must still type ‘yes’ to confirm, rather than
just pressing ‘y’.

* Document the new NERDTreeMinimalMenu feature

* Tweak the format for the minimal menu prompt

As per @PhilRunninger’s suggestions:

- The menu now shows the ‘j/k/enter’ help text
- The first word of the selected item is shown*
- Use commas between menu items so that it’s
  visually distinct from the ‘j/k/enter’ text

* I tried displaying the full menuItem text, but
this can be quite long, e.g.

> (o)pen the current node with system editor

This causes the menu to jump around a lot. We
could add another minimal versions of these, but
I think the first word seems ok for now.
2019-02-24 18:01:12 -05:00
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The NERDTree

Introduction

The NERDTree is a file system explorer for the Vim editor. Using this plugin, users can visually browse complex directory hierarchies, quickly open files for reading or editing, and perform basic file system operations.

This plugin can also be extended with custom mappings using a special API. The details of this API and of other NERDTree features are described in the included documentation.

NERDTree Screenshot

Installation

pathogen.vim

git clone https://github.com/scrooloose/nerdtree.git ~/.vim/bundle/nerdtree

Then reload Vim, run :helptags ~/.vim/bundle/nerdtree/doc/ or :Helptags, and check out :help NERDTree.txt.

apt-vim

apt-vim install -y https://github.com/scrooloose/nerdtree.git

F.A.Q.

Is there any support for git flags?

Yes, install nerdtree-git-plugin.


Can I have the nerdtree on every tab automatically?

Nope. If this is something you want then chances are you aren't using tabs and buffers as they were intended to be used. Read this http://stackoverflow.com/questions/102384/using-vims-tabs-like-buffers

If you are interested in this behaviour then consider vim-nerdtree-tabs


How can I open a NERDTree automatically when vim starts up?

Stick this in your vimrc: autocmd vimenter * NERDTree


How can I open a NERDTree automatically when vim starts up if no files were specified?

Stick this in your vimrc:

autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif

Note: Now start vim with plain vim, not vim .


How can I open NERDTree automatically when vim starts up on opening a directory?

autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 1 && isdirectory(argv()[0]) && !exists("s:std_in") | exe 'NERDTree' argv()[0] | wincmd p | ene | endif

This window is tab-specific, meaning it's used by all windows in the tab. This trick also prevents NERDTree from hiding when first selecting a file.


How can I map a specific key or shortcut to open NERDTree?

Stick this in your vimrc to open NERDTree with Ctrl+n (you can set whatever key you want):

map <C-n> :NERDTreeToggle<CR>

How can I close vim if the only window left open is a NERDTree?

Stick this in your vimrc:

autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

Can I have different highlighting for different file extensions?

See here: https://github.com/scrooloose/nerdtree/issues/433#issuecomment-92590696


How can I change default arrows?

Use these variables in your vimrc. Note that below are default arrow symbols

let g:NERDTreeDirArrowExpandable = '▸'
let g:NERDTreeDirArrowCollapsible = '▾'