blob: 2ff4584dc40783a88744c3fded2ccad39844c227 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
"
" flag_toggle.vim: Provide functions to toggle flags in single-char grouped
" options like 'formatoptions', 'shortmess', 'complete' etc.
"
" This will fail hilariously if you try to set e.g. 'switchbuf' with it!
"
" Author: Tom Ryder <tom@sanctum.geek.nz>
" License: Same as Vim itself
"
" Public wrapper function to toggle a flag with 'set'
function! flag_toggle#Toggle(option, flag)
call s:Toggle(a:option, a:flag, 0)
endfunction
" Public wrapper function to toggle a flag with 'setlocal'
function! flag_toggle#ToggleLocal(option, flag)
call s:Toggle(a:option, a:flag, 1)
endfunction
" Internal function to do the toggling
function! s:Toggle(option, flag, local)
" Check for weird options, we don't want to eval() anything funny
if a:option =~# '[^a-z]'
echoerr 'Illegal option name'
return
endif
" Weird flags, too; should be a single inoffensive char
if a:flag !~# '^[a-z0-9.]$'
echoerr 'Illegal flag'
return
endif
" Choose which set command to use
if a:local
let l:set = 'setlocal '
else
let l:set = 'set '
endif
" Use eval() to assign -= or += to l:op for the option toggle
" (I couldn't get {curly braces} indirection to work)
let l:op = ''
execute 'let l:op = &'.a:option.' =~# a:flag ? "-=" : "+="'
" Use eval() to perform the option toggle and then print the value
execute l:set . ' ' . a:option . l:op . a:flag . ' ' . a:option . '?'
endfunction
|