vim-airline/autoload/airline/extensions/wordcount.vim
2018-12-10 09:11:10 +01:00

118 lines
3.9 KiB
VimL

" MIT License. Copyright (c) 2013-2018 Bailey Ling et al.
" vim: et ts=2 sts=2 sw=2 fdm=marker
scriptencoding utf-8
" get wordcount {{{1
if exists('*wordcount')
function! s:get_wordcount(visual_mode_active)
let query = a:visual_mode_active ? 'visual_words' : 'words'
return get(wordcount(), query, 0)
endfunction
else " Pull wordcount from the g_ctrl-g stats
function! s:get_wordcount(visual_mode_active)
let pattern = a:visual_mode_active
\ ? '^.\D*\d\+\D\+\d\+\D\+\zs\d\+'
\ : '^.\D*\%(\d\+\D\+\)\{5}\zs\d\+'
let save_status = v:statusmsg
if !a:visual_mode_active && col('.') == col('$')
let save_pos = getpos('.')
execute "silent normal! g\<c-g>"
call setpos('.', save_pos)
else
execute "silent normal! g\<c-g>"
endif
let stats = v:statusmsg
let v:statusmsg = save_status
return str2nr(matchstr(stats, pattern))
endfunction
endif
" format {{{1
let s:formatter = get(g:, 'airline#extensions#wordcount#formatter', 'default')
" wrapper function for compatibility; redefined below for old-style formatters
function! s:format_wordcount(wordcount)
return airline#extensions#wordcount#formatters#{s:formatter}#to_string(a:wordcount)
endfunction
" check user-defined formatter exists with appropriate functions, otherwise
" fall back to default
if s:formatter !=# 'default'
execute 'runtime! autoload/airline/extensions/wordcount/formatters/'.s:formatter
if !exists('*airline#extensions#wordcount#formatters#{s:formatter}#to_string')
if !exists('*airline#extensions#wordcount#formatters#{s:formatter}#format')
let s:formatter = 'default'
else
" redefine for backwords compatibility
function! s:format_wordcount(_)
if mode() ==? 'v'
return b:airline_wordcount
else
return airline#extensions#wordcount#formatters#{s:formatter}#format()
endif
endfunction
endif
endif
endif
" update {{{1
let s:wordcount_cache = 0 " cache wordcount for performance when force_update=0
function! s:update_wordcount(force_update)
let wordcount = s:get_wordcount(0)
if wordcount != s:wordcount_cache || a:force_update
let s:wordcount_cache = wordcount
let b:airline_wordcount = s:format_wordcount(wordcount)
endif
endfunction
let s:visual_active = 0 " Boolean: for when to get visual wordcount
function airline#extensions#wordcount#get()
if s:visual_active
return s:format_wordcount(s:get_wordcount(1))
else
if get(b:, 'airline_changedtick', 0) != b:changedtick
call s:update_wordcount(0)
let b:airline_changedtick = b:changedtick
endif
return get(b:, 'airline_wordcount', '')
endif
endfunction
" airline functions {{{1
" default filetypes:
let s:filetypes = ['help', 'markdown', 'rst', 'org', 'text', 'asciidoc', 'tex', 'mail']
function! airline#extensions#wordcount#apply(...)
let filetypes = get(g:, 'airline#extensions#wordcount#filetypes', s:filetypes)
" Check if filetype needs testing
if did_filetype() || filetypes isnot s:filetypes
let s:filetypes = filetypes
" Select test based on type of "filetypes": new=list, old=string
if type(filetypes) == get(v:, 't_list', type([]))
\ ? index(filetypes, &filetype) > -1 || index(filetypes, 'all') > -1
\ : match(&filetype, filetypes) > -1
let b:airline_changedtick = -1
call s:update_wordcount(1) " force update: ensures initial worcount exists
elseif exists('b:airline_wordcount') " cleanup when filetype is removed
unlet b:airline_wordcount
endif
endif
if exists('b:airline_wordcount')
call airline#extensions#prepend_to_section(
\ 'z', '%{airline#extensions#wordcount#get()}')
endif
endfunction
function! airline#extensions#wordcount#init(ext)
augroup airline_wordcount
autocmd! User AirlineModeChanged nested
\ let s:visual_active = (mode() ==? 'v' || mode() ==? 's')
augroup END
call a:ext.add_statusline_func('airline#extensions#wordcount#apply')
endfunction