264c1fefd2
Compatibility: - Don't use a script-local function to update the format strings - Protect against `:normal!' moving the cursor on on the wordcount check Bugfix: - Let to_string() try to return something for all values - Now returns correctly when passed both 0 and '0' Upkeep: - Simplify check again no valid key from winwidth() - Old wordcount check: use matchstr() - more expressive and fewer steps - Improve documentation style/clarity/detail
118 lines
3.9 KiB
VimL
118 lines
3.9 KiB
VimL
" MIT License. Copyright (c) 2013-2018 Bailey Ling et al.
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" vim: et ts=2 sts=2 sw=2 fdm=marker
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scriptencoding utf-8
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" get wordcount {{{1
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if exists('*wordcount')
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function! s:get_wordcount(visual_mode_active)
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let query = a:visual_mode_active ? 'visual_words' : 'words'
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return get(wordcount(), query, 0)
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endfunction
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else " Pull wordcount from the g_ctrl-g stats
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function! s:get_wordcount(visual_mode_active)
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let pattern = a:visual_mode_active
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\ ? '\d\+\ze Words;'
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\ : 'Word \d\+ of \zs\d\+'
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let save_status = v:statusmsg
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if !a:visual_mode_active && col('.') == col('$')
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let save_pos = getpos('.')
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execute "silent normal! g\<c-g>"
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call setpos('.', save_pos)
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else
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execute "silent normal! g\<c-g>"
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endif
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let stats = v:statusmsg
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let v:statusmsg = save_status
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return str2nr(matchstr(stats, pattern))
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endfunction
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endif
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" format {{{1
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let s:formatter = get(g:, 'airline#extensions#wordcount#formatter', 'default')
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" wrapper function for compatibility; redefined below for old-style formatters
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function! s:format_wordcount(wordcount)
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return airline#extensions#wordcount#formatters#{s:formatter}#to_string(a:wordcount)
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endfunction
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" check user-defined formatter exists with appropriate functions, otherwise
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" fall back to default
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if s:formatter !=# 'default'
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execute 'runtime! autoload/airline/extensions/wordcount/formatters/'.s:formatter
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if !exists('*airline#extensions#wordcount#formatters#{s:formatter}#to_string')
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if !exists('*airline#extensions#wordcount#formatters#{s:formatter}#format')
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let s:formatter = 'default'
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else
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" redefine for backwords compatibility
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function! s:format_wordcount(_)
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if mode() ==? 'v'
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return b:airline_wordcount
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else
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return airline#extensions#wordcount#formatters#{s:formatter}#format()
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endif
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endfunction
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endif
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endif
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endif
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" update {{{1
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let s:wordcount_cache = 0 " cache wordcount for performance when force_update=0
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function! s:update_wordcount(force_update)
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let wordcount = s:get_wordcount(0)
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if wordcount != s:wordcount_cache || a:force_update
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let s:wordcount_cache = wordcount
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let b:airline_wordcount = s:format_wordcount(wordcount)
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endif
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endfunction
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let s:visual_active = 0 " Boolean: for when to get visual wordcount
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function airline#extensions#wordcount#get()
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if s:visual_active
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return s:format_wordcount(s:get_wordcount(1))
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else
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if b:airline_changedtick != b:changedtick
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call s:update_wordcount(0)
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let b:airline_changedtick = b:changedtick
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endif
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return b:airline_wordcount
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endif
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endfunction
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" airline functions {{{1
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" default filetypes:
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let s:filetypes = ['help', 'markdown', 'rst', 'org', 'text', 'asciidoc', 'tex', 'mail']
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function! airline#extensions#wordcount#apply(...)
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let filetypes = get(g:, 'airline#extensions#wordcount#filetypes', s:filetypes)
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" Check if filetype needs testing
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if did_filetype() || filetypes isnot s:filetypes
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let s:filetypes = filetypes
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" Select test based on type of "filetypes": new=list, old=string
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if type(filetypes) == get(v:, 't_list', type([]))
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\ ? index(filetypes, &filetype) > -1 || index(filetypes, 'all') > -1
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\ : match(&filetype, filetypes) > -1
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let b:airline_changedtick = -1
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call s:update_wordcount(1) " force update: ensures initial worcount exists
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elseif exists('b:airline_wordcount') " cleanup when filetype is removed
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unlet b:airline_wordcount
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endif
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endif
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if exists('b:airline_wordcount')
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call airline#extensions#prepend_to_section(
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\ 'z', '%{airline#extensions#wordcount#get()}')
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endif
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endfunction
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function! airline#extensions#wordcount#init(ext)
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augroup airline_wordcount
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autocmd! User AirlineModeChanged nested
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\ let s:visual_active = (mode() ==? 'v' || mode() ==? 's')
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augroup END
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call a:ext.add_statusline_func('airline#extensions#wordcount#apply')
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endfunction
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