xref: /vim-8.2.3635/runtime/defaults.vim (revision 8ea05de6)
1" The default vimrc file.
2"
3" Maintainer:	Bram Moolenaar <[email protected]>
4" Last change:	2020 Sep 30
5"
6" This is loaded if no vimrc file was found.
7" Except when Vim is run with "-u NONE" or "-C".
8" Individual settings can be reverted with ":set option&".
9" Other commands can be reverted as mentioned below.
10
11" When started as "evim", evim.vim will already have done these settings.
12if v:progname =~? "evim"
13  finish
14endif
15
16" Bail out if something that ran earlier, e.g. a system wide vimrc, does not
17" want Vim to use these default values.
18if exists('skip_defaults_vim')
19  finish
20endif
21
22" Use Vim settings, rather than Vi settings (much better!).
23" This must be first, because it changes other options as a side effect.
24" Avoid side effects when it was already reset.
25if &compatible
26  set nocompatible
27endif
28
29" When the +eval feature is missing, the set command above will be skipped.
30" Use a trick to reset compatible only when the +eval feature is missing.
31silent! while 0
32  set nocompatible
33silent! endwhile
34
35" Allow backspacing over everything in insert mode.
36set backspace=indent,eol,start
37
38set history=200		" keep 200 lines of command line history
39set ruler		" show the cursor position all the time
40set showcmd		" display incomplete commands
41set wildmenu		" display completion matches in a status line
42
43set ttimeout		" time out for key codes
44set ttimeoutlen=100	" wait up to 100ms after Esc for special key
45
46" Show @@@ in the last line if it is truncated.
47set display=truncate
48
49" Show a few lines of context around the cursor.  Note that this makes the
50" text scroll if you mouse-click near the start or end of the window.
51set scrolloff=5
52
53" Do incremental searching when it's possible to timeout.
54if has('reltime')
55  set incsearch
56endif
57
58" Do not recognize octal numbers for Ctrl-A and Ctrl-X, most users find it
59" confusing.
60set nrformats-=octal
61
62" For Win32 GUI: remove 't' flag from 'guioptions': no tearoff menu entries.
63if has('win32')
64  set guioptions-=t
65endif
66
67" Don't use Ex mode, use Q for formatting.
68" Revert with ":unmap Q".
69map Q gq
70
71" CTRL-U in insert mode deletes a lot.  Use CTRL-G u to first break undo,
72" so that you can undo CTRL-U after inserting a line break.
73" Revert with ":iunmap <C-U>".
74inoremap <C-U> <C-G>u<C-U>
75
76" In many terminal emulators the mouse works just fine.  By enabling it you
77" can position the cursor, Visually select and scroll with the mouse.
78" Only xterm can grab the mouse events when using the shift key, for other
79" terminals use ":", select text and press Esc.
80if has('mouse')
81  if &term =~ 'xterm'
82    set mouse=a
83  else
84    set mouse=nvi
85  endif
86endif
87
88" Only do this part when Vim was compiled with the +eval feature.
89if 1
90
91  " Enable file type detection.
92  " Use the default filetype settings, so that mail gets 'tw' set to 72,
93  " 'cindent' is on in C files, etc.
94  " Also load indent files, to automatically do language-dependent indenting.
95  " Revert with ":filetype off".
96  filetype plugin indent on
97
98  " Put these in an autocmd group, so that you can revert them with:
99  " ":augroup vimStartup | au! | augroup END"
100  augroup vimStartup
101    au!
102
103    " When editing a file, always jump to the last known cursor position.
104    " Don't do it when the position is invalid, when inside an event handler
105    " (happens when dropping a file on gvim) and for a commit message (it's
106    " likely a different one than last time).
107    autocmd BufReadPost *
108      \ if line("'\"") >= 1 && line("'\"") <= line("$") && &ft !~# 'commit'
109      \ |   exe "normal! g`\""
110      \ | endif
111
112  augroup END
113
114endif
115
116" Switch syntax highlighting on when the terminal has colors or when using the
117" GUI (which always has colors).
118if &t_Co > 2 || has("gui_running")
119  " Revert with ":syntax off".
120  syntax on
121
122  " I like highlighting strings inside C comments.
123  " Revert with ":unlet c_comment_strings".
124  let c_comment_strings=1
125endif
126
127" Convenient command to see the difference between the current buffer and the
128" file it was loaded from, thus the changes you made.
129" Only define it when not defined already.
130" Revert with: ":delcommand DiffOrig".
131if !exists(":DiffOrig")
132  command DiffOrig vert new | set bt=nofile | r ++edit # | 0d_ | diffthis
133		  \ | wincmd p | diffthis
134endif
135
136if has('langmap') && exists('+langremap')
137  " Prevent that the langmap option applies to characters that result from a
138  " mapping.  If set (default), this may break plugins (but it's backward
139  " compatible).
140  set nolangremap
141endif
142