mirror of
https://github.com/vim-airline/vim-airline.git
synced 2024-11-24 20:30:28 +08:00
86 lines
2.5 KiB
VimL
86 lines
2.5 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',
|
|
\ 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
|
|
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 .= '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(...)
|
|
if !exists('w:airline_section_warning')
|
|
let w:airline_section_warning = ' '
|
|
endif
|
|
let w:airline_section_warning .= '%{airline#extensions#whitespace#check()}'
|
|
endfunction
|
|
|
|
function! airline#extensions#whitespace#toggle()
|
|
if s:enabled
|
|
autocmd! airline_whitespace CursorHold,BufWritePost
|
|
let s:enabled = 0
|
|
else
|
|
call airline#extensions#whitespace#init()
|
|
let s:enabled = 1
|
|
endif
|
|
endfunction
|
|
|
|
function! airline#extensions#whitespace#init(ext)
|
|
if !s:initialized
|
|
let s:initialized = 1
|
|
call a:ext.add_statusline_funcref(function('airline#extensions#whitespace#apply'))
|
|
endif
|
|
|
|
unlet! b:airline_whitespace_check
|
|
augroup airline_whitespace
|
|
autocmd!
|
|
autocmd CursorHold,BufWritePost * unlet! b:airline_whitespace_check
|
|
augroup END
|
|
endfunction
|
|
|