vim-airline-themes/autoload/airline/extensions/whitespace.vim

83 lines
2.4 KiB
VimL
Raw Normal View History

" MIT License. Copyright (c) 2013 Bailey Ling.
" vim: et ts=2 sts=2 sw=2
" http://got-ravings.blogspot.com/2008/10/vim-pr0n-statusline-whitespace-flags.html
2013-08-20 08:35:48 +08:00
" for backwards compatibility
if exists('g:airline_detect_whitespace')
let s:show_message = g:airline_detect_whitespace == 1
else
let s:show_message = get(g:, 'airline#extensions#whitespace#show_message', 1)
endif
let s:symbol = get(g:, 'airline#extensions#whitespace#symbol',
\ get(g:, 'airline_whitespace_symbol', get(g:, 'airline_powerline_fonts', 0) ? '✹' : '!'))
let s:checks = get(g:, 'airline#extensions#whitespace#checks', ['indent', 'trailing'])
let s:initialized = 0
2013-08-20 08:35:48 +08:00
let s:enabled = 1
function! airline#extensions#whitespace#check()
2013-08-20 08:35:48 +08:00
if &readonly || !s:enabled
return ''
endif
if !exists('b:airline_whitespace_check')
let b:airline_whitespace_check = ''
let trailing = 0
if index(s:checks, 'trailing') > -1
let trailing = search(' $', 'nw')
endif
let mixed = 0
if index(s:checks, 'indent') > -1
let indents = [search('^ ', 'nb'), search('^ ', 'n'), search('^\t', 'nb'), search('^\t', 'n')]
let mixed = indents[0] != 0 && indents[1] != 0 && indents[2] != 0 && indents[3] != 0
endif
2013-08-07 10:02:53 +08:00
if trailing != 0 || mixed
let b:airline_whitespace_check = s:symbol." "
2013-08-20 08:35:48 +08:00
if s:show_message
2013-08-07 10:02:53 +08:00
if trailing != 0
let b:airline_whitespace_check .= 'trailing['.trailing.'] '
endif
if mixed
let mixnr = indents[0] == indents[1] ? indents[0] : indents[2]
let b:airline_whitespace_check .= 'mixed-indent['.mixnr.'] '
endif
endif
endif
endif
return b:airline_whitespace_check
endfunction!
function! airline#extensions#whitespace#apply(...)
call airline#extensions#append_to_section('warning', ' %{airline#extensions#whitespace#check()}')
endfunction
2013-08-08 22:42:27 +08:00
function! airline#extensions#whitespace#toggle()
2013-08-20 08:35:48 +08:00
if s:enabled
2013-08-08 22:42:27 +08:00
autocmd! airline_whitespace CursorHold,BufWritePost
2013-08-20 08:35:48 +08:00
let s:enabled = 0
else
call airline#extensions#whitespace#init()
2013-08-20 08:35:48 +08:00
let s:enabled = 1
2013-08-08 22:42:27 +08:00
endif
endfunction
2013-08-24 00:42:55 +08:00
function! airline#extensions#whitespace#init(...)
2013-08-08 22:42:27 +08:00
if !s:initialized
let s:initialized = 1
call airline#add_statusline_func('airline#extensions#whitespace#apply')
2013-08-08 22:42:27 +08:00
endif
2013-08-20 08:35:48 +08:00
unlet! b:airline_whitespace_check
augroup airline_whitespace
autocmd!
autocmd CursorHold,BufWritePost * unlet! b:airline_whitespace_check
augroup END
endfunction