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

78 lines
2.4 KiB
VimL

" 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
" 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', g:airline_symbols.whitespace)
let s:checks = get(g:, 'airline#extensions#whitespace#checks', ['indent', 'trailing'])
let s:trailing_format = get(g:, 'airline#extensions#whitespace#trailing_format', 'trailing[%s]')
let s:mixed_indent_format = get(g:, 'airline#extensions#whitespace#mixed_indent_format', 'mixed-indent[%s]')
let s:enabled = 1
function! airline#extensions#whitespace#check()
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
if trailing != 0 || mixed
let b:airline_whitespace_check = s:symbol.' '
if s:show_message
if trailing != 0
let b:airline_whitespace_check .= printf(s:trailing_format, trailing)
endif
if mixed
let mixnr = indents[0] == indents[1] ? indents[0] : indents[2]
let b:airline_whitespace_check .= printf(s:mixed_indent_format, mixnr)
endif
endif
endif
endif
return b:airline_whitespace_check
endfunction!
function! airline#extensions#whitespace#toggle()
if s:enabled
autocmd! airline_whitespace CursorHold,BufWritePost
augroup! airline_whitespace
let s:enabled = 0
else
call airline#extensions#whitespace#init()
let s:enabled = 1
endif
echo 'Whitespace checking: '.(s:enabled ? 'Enabled' : 'Disabled')
endfunction
function! airline#extensions#whitespace#init(...)
call airline#parts#define_function('whitespace', 'airline#extensions#whitespace#check')
unlet! b:airline_whitespace_check
augroup airline_whitespace
autocmd!
autocmd CursorHold,BufWritePost * unlet! b:airline_whitespace_check
augroup END
endfunction