blob: 7aa25a8401923d75f2a51bde0ed8c2c1482e8c62 (
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
|
" Internal function to do the toggling
function! toggle_flags#(option, flag, local) abort
" Fatal errors in this block just get quietly reported to the user
try
" Check option exists
if !exists('&'.a:option)
echoerr 'No such option '.a:option
endif
" Don't allow blank flag
if !strlen(a:flag)
echoerr 'Blank flag'
endif
" Get option's current value. Is there a way to do this without :execute?
" I couldn't make it work with :help curly-braces-names.
let value = ''
execute 'let value = &'.a:option
" Figure out whether the flag is presently enabled in the option or not;
" if it's longer than a single character, look for a comma-delimited word
let enabled = strlen(a:flag) > 1
\ ? stridx(','.value.',', ','.a:flag.',') != -1
\ : stridx(value, a:flag) != -1
" Build and run command
execute (a:local ? 'setlocal ' : 'set ')
\ . a:option
\ . (enabled ? '-=' : '+=')
\ . escape(a:flag, '\ ')
" Display option's new value
execute 'set '.a:option.'?'
catch
" Print fatal error as just error message highlighted text, so that it
" only takes up one line and doesn't inspire Enter keypresses and panic
echohl ErrorMsg
echomsg v:exception
echohl None
endtry
endfunction
|
