199 lines
6.8 KiB
VimL
199 lines
6.8 KiB
VimL
" MIT License. Copyright (c) 2013-2021 Bailey Ling et al.
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" vim: et ts=2 sts=2 sw=2
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" http://got-ravings.blogspot.com/2008/10/vim-pr0n-statusline-whitespace-flags.html
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scriptencoding utf-8
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let s:show_message = get(g:, 'airline#extensions#whitespace#show_message', 1)
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let s:symbol = get(g:, 'airline#extensions#whitespace#symbol', g:airline_symbols.whitespace)
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let s:default_checks = ['indent', 'trailing', 'mixed-indent-file', 'conflicts']
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let s:enabled = get(g:, 'airline#extensions#whitespace#enabled', 1)
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let s:skip_check_ft = {'make': ['indent', 'mixed-indent-file'],
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\ 'csv': ['indent', 'mixed-indent-file'],
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\ 'mail': ['trailing']}
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function! s:check_mixed_indent()
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let indent_algo = get(g:, 'airline#extensions#whitespace#mixed_indent_algo', 0)
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if indent_algo == 1
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" [<tab>]<space><tab>
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" spaces before or between tabs are not allowed
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let t_s_t = '(^\t* +\t\s*\S)'
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" <tab>(<space> x count)
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" count of spaces at the end of tabs should be less than tabstop value
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let t_l_s = '(^\t+ {' . &ts . ',}' . '\S)'
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return search('\v' . t_s_t . '|' . t_l_s, 'nw')
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elseif indent_algo == 2
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return search('\v(^\t* +\t\s*\S)', 'nw', 0, 500)
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else
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return search('\v(^\t+ +)|(^ +\t+)', 'nw', 0, 500)
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endif
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endfunction
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function! s:check_mixed_indent_file()
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let c_like_langs = get(g:, 'airline#extensions#c_like_langs',
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\ [ 'arduino', 'c', 'cpp', 'cuda', 'go', 'javascript', 'ld', 'php' ])
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if index(c_like_langs, &ft) > -1
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" for C-like languages: allow /** */ comment style with one space before the '*'
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let head_spc = '\v(^ +\*@!)'
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else
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let head_spc = '\v(^ +)'
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endif
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let indent_tabs = search('\v(^\t+)', 'nw')
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let indent_spc = search(head_spc, 'nw')
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if indent_tabs > 0 && indent_spc > 0
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return printf("%d:%d", indent_tabs, indent_spc)
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else
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return ''
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endif
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endfunction
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function! s:conflict_marker()
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" Checks for git conflict markers
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let annotation = '\%([0-9A-Za-z_.:]\+\)\?'
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if match(['rst', 'markdown'], &ft) >= 0
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" rst filetypes use '=======' as header
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let pattern = '^\%(\%(<\{7} '.annotation. '\)\|\%(>\{7\} '.annotation.'\)\)$'
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else
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let pattern = '^\%(\%(<\{7} '.annotation. '\)\|\%(=\{7\}\)\|\%(>\{7\} '.annotation.'\)\)$'
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endif
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return search(pattern, 'nw')
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endfunction
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function! airline#extensions#whitespace#check()
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let max_lines = get(g:, 'airline#extensions#whitespace#max_lines', 20000)
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if &readonly || !&modifiable || !s:enabled || line('$') > max_lines
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\ || get(b:, 'airline_whitespace_disabled', 0)
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return ''
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endif
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let skip_check_ft = extend(s:skip_check_ft,
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\ get(g:, 'airline#extensions#whitespace#skip_indent_check_ft', {}), 'force')
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if !exists('b:airline_whitespace_check')
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let b:airline_whitespace_check = ''
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let checks = get(b:, 'airline_whitespace_checks', get(g:, 'airline#extensions#whitespace#checks', s:default_checks))
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let trailing = 0
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let check = 'trailing'
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if index(checks, check) > -1 && index(get(skip_check_ft, &ft, []), check) < 0
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try
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let regexp = get(g:, 'airline#extensions#whitespace#trailing_regexp', '\s$')
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let trailing = search(regexp, 'nw')
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catch
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call airline#util#warning(printf('Whitespace: error occurred evaluating "%s"', regexp))
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echomsg v:exception
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return ''
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endtry
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endif
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let mixed = 0
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let check = 'indent'
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if index(checks, check) > -1 && index(get(skip_check_ft, &ft, []), check) < 0
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let mixed = s:check_mixed_indent()
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endif
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let mixed_file = ''
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let check = 'mixed-indent-file'
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if index(checks, check) > -1 && index(get(skip_check_ft, &ft, []), check) < 0
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let mixed_file = s:check_mixed_indent_file()
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endif
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let long = 0
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if index(checks, 'long') > -1 && &tw > 0
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let long = search('\%>'.&tw.'v.\+', 'nw')
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endif
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let conflicts = 0
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if index(checks, 'conflicts') > -1
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let conflicts = s:conflict_marker()
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endif
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if trailing != 0 || mixed != 0 || long != 0 || !empty(mixed_file) || conflicts != 0
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let b:airline_whitespace_check = s:symbol
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if strlen(s:symbol) > 0
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let space = (g:airline_symbols.space)
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else
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let space = ''
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endif
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if s:show_message
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if trailing != 0
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let trailing_fmt = get(g:, 'airline#extensions#whitespace#trailing_format', '[%s]trailing')
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let b:airline_whitespace_check .= space.printf(trailing_fmt, trailing)
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endif
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if mixed != 0
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let mixed_indent_fmt = get(g:, 'airline#extensions#whitespace#mixed_indent_format', '[%s]mixed-indent')
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let b:airline_whitespace_check .= space.printf(mixed_indent_fmt, mixed)
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endif
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if long != 0
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let long_fmt = get(g:, 'airline#extensions#whitespace#long_format', '[%s]long')
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let b:airline_whitespace_check .= space.printf(long_fmt, long)
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endif
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if !empty(mixed_file)
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let mixed_indent_file_fmt = get(g:, 'airline#extensions#whitespace#mixed_indent_file_format', '[%s]mix-indent-file')
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let b:airline_whitespace_check .= space.printf(mixed_indent_file_fmt, mixed_file)
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endif
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if conflicts != 0
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let conflicts_fmt = get(g:, 'airline#extensions#whitespace#conflicts_format', '[%s]conflicts')
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let b:airline_whitespace_check .= space.printf(conflicts_fmt, conflicts)
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endif
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endif
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endif
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endif
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return airline#util#shorten(b:airline_whitespace_check, 120, 9)
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endfunction
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function! airline#extensions#whitespace#toggle()
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if s:enabled
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augroup airline_whitespace
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autocmd!
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augroup END
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augroup! airline_whitespace
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let s:enabled = 0
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else
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call airline#extensions#whitespace#init()
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let s:enabled = 1
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endif
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if exists("g:airline#extensions#whitespace#enabled")
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let g:airline#extensions#whitespace#enabled = s:enabled
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if s:enabled && match(g:airline_section_warning, '#whitespace#check') < 0
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let g:airline_section_warning .= airline#section#create(['whitespace'])
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call airline#update_statusline()
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endif
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endif
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call airline#util#warning(printf('Whitespace checking: %s',(s:enabled ? 'Enabled' : 'Disabled')))
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endfunction
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function! airline#extensions#whitespace#disable()
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if s:enabled
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call airline#extensions#whitespace#toggle()
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endif
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endfunction
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function! airline#extensions#whitespace#init(...)
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call airline#parts#define_function('whitespace', 'airline#extensions#whitespace#check')
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unlet! b:airline_whitespace_check
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augroup airline_whitespace
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autocmd!
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autocmd CursorHold,BufWritePost * call <sid>ws_refresh()
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augroup END
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endfunction
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function! s:ws_refresh()
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if !exists('#airline')
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" airline disabled
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return
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endif
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if get(b:, 'airline_ws_changedtick', 0) == b:changedtick
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return
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endif
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unlet! b:airline_whitespace_check
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if get(g:, 'airline_skip_empty_sections', 0)
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exe ':AirlineRefresh!'
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endif
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let b:airline_ws_changedtick = b:changedtick
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endfunction
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