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man.vim
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" Vim filetype plugin file " Language: man " Maintainer: Jason Franklin <vim@justemail.net> " Maintainer: SungHyun Nam <goweol@gmail.com> " Last Change: 2021 Sep 26 " To make the ":Man" command available before editing a manual page, source " this script from your startup vimrc file. " If 'filetype' isn't "man", we must have been called to only define ":Man". if &filetype == "man" " Only do this when not done yet for this buffer if exists("b:did_ftplugin") finish endif let b:did_ftplugin = 1 endif let s:cpo_save = &cpo set cpo-=C if &filetype == "man" " allow dot and dash in manual page name. setlocal iskeyword+=\.,- let b:undo_ftplugin = "setlocal iskeyword<" " Add mappings, unless the user didn't want this. if !exists("no_plugin_maps") && !exists("no_man_maps") if !hasmapto('<Plug>ManBS') nmap <buffer> <LocalLeader>h <Plug>ManBS let b:undo_ftplugin = b:undo_ftplugin \ . '|silent! nunmap <buffer> <LocalLeader>h' endif nnoremap <buffer> <Plug>ManBS :%s/.\b//g<CR>:setl nomod<CR>'' nnoremap <buffer> <silent> <c-]> :call <SID>PreGetPage(v:count)<CR> nnoremap <buffer> <silent> <c-t> :call <SID>PopPage()<CR> nnoremap <buffer> <silent> q :q<CR> " Add undo commands for the maps let b:undo_ftplugin = b:undo_ftplugin \ . '|silent! nunmap <buffer> <Plug>ManBS' \ . '|silent! nunmap <buffer> <c-]>' \ . '|silent! nunmap <buffer> <c-t>' \ . '|silent! nunmap <buffer> q' endif if exists('g:ft_man_folding_enable') && (g:ft_man_folding_enable == 1) setlocal foldmethod=indent foldnestmax=1 foldenable let b:undo_ftplugin = b:undo_ftplugin \ . '|silent! setl fdm< fdn< fen<' endif endif if exists(":Man") != 2 com -nargs=+ -complete=shellcmd Man call s:GetPage(<q-mods>, <f-args>) nmap <Leader>K :call <SID>PreGetPage(0)<CR> nmap <Plug>ManPreGetPage :call <SID>PreGetPage(0)<CR> endif " Define functions only once. if !exists("s:man_tag_depth") let s:man_tag_depth = 0 let s:man_sect_arg = "" let s:man_find_arg = "-w" try if !has("win32") && $OSTYPE !~ 'cygwin\|linux' && system('uname -s') =~ "SunOS" && system('uname -r') =~ "^5" let s:man_sect_arg = "-s" let s:man_find_arg = "-l" endif catch /E145:/ " Ignore the error in restricted mode endtry func s:PreGetPage(cnt) if a:cnt == 0 let old_isk = &iskeyword if &ft == 'man' setl iskeyword+=(,) endif let str = expand("<cword>") let &l:iskeyword = old_isk let page = substitute(str, '(*\(\k\+\).*', '\1', '') let sect = substitute(str, '\(\k\+\)(\([^()]*\)).*', '\2', '') if match(sect, '^[0-9 ]\+$') == -1 let sect = "" endif if sect == page let sect = "" endif else let sect = a:cnt let page = expand("<cword>") endif call s:GetPage('', sect, page) endfunc func s:GetCmdArg(sect, page) if empty(a:sect) return shellescape(a:page) endif return s:man_sect_arg . ' ' . shellescape(a:sect) . ' ' . shellescape(a:page) endfunc func s:FindPage(sect, page) let l:cmd = printf('man %s %s', s:man_find_arg, s:GetCmdArg(a:sect, a:page)) call system(l:cmd) if v:shell_error return 0 endif return 1 endfunc func s:GetPage(cmdmods, ...) if a:0 >= 2 let sect = a:1 let page = a:2 elseif a:0 >= 1 let sect = "" let page = a:1 else return endif " To support: nmap K :Man <cword> if page == '<cword>' let page = expand('<cword>') endif if !exists('g:ft_man_no_sect_fallback') || (g:ft_man_no_sect_fallback == 0) if sect != "" && s:FindPage(sect, page) == 0 let sect = "" endif endif if s:FindPage(sect, page) == 0 let msg = 'man.vim: no manual entry for "' . page . '"' if !empty(sect) let msg .= ' in section ' . sect endif echomsg msg return endif exec "let s:man_tag_buf_".s:man_tag_depth." = ".bufnr("%") exec "let s:man_tag_lin_".s:man_tag_depth." = ".line(".") exec "let s:man_tag_col_".s:man_tag_depth." = ".col(".") let s:man_tag_depth = s:man_tag_depth + 1 let open_cmd = 'edit' " Use an existing "man" window if it exists, otherwise open a new one. if &filetype != "man" let thiswin = winnr() exe "norm! \<C-W>b" if winnr() > 1 exe "norm! " . thiswin . "\<C-W>w" while 1 if &filetype == "man" break endif exe "norm! \<C-W>w" if thiswin == winnr() break endif endwhile endif if &filetype != "man" if exists("g:ft_man_open_mode") if g:ft_man_open_mode == 'vert' let open_cmd = 'vsplit' elseif g:ft_man_open_mode == 'tab' let open_cmd = 'tabedit' else let open_cmd = 'split' endif else let open_cmd = a:cmdmods . ' split' endif endif endif silent execute open_cmd . " $HOME/" . page . '.' . sect . '~' " Avoid warning for editing the dummy file twice setl buftype=nofile noswapfile setl fdc=0 ma nofen nonu nornu %delete _ let unsetwidth = 0 if empty($MANWIDTH) let $MANWIDTH = winwidth(0) let unsetwidth = 1 endif " Ensure Vim is not recursively invoked (man-db does this) when doing ctrl-[ " on a man page reference by unsetting MANPAGER. " Some versions of env(1) do not support the '-u' option, and in such case " we set MANPAGER=cat. if !exists('s:env_has_u') call system('env -u x true') let s:env_has_u = (v:shell_error == 0) endif let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat' let env_cmd .= ' GROFF_NO_SGR=1' let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page) . ' | col -b' silent exec "r !" . man_cmd if unsetwidth let $MANWIDTH = '' endif " Remove blank lines from top and bottom. while line('$') > 1 && getline(1) =~ '^\s*$' 1delete _ endwhile while line('$') > 1 && getline('$') =~ '^\s*$' $delete _ endwhile 1 setl ft=man nomod setl bufhidden=hide setl nobuflisted setl noma endfunc func s:PopPage() if s:man_tag_depth > 0 let s:man_tag_depth = s:man_tag_depth - 1 exec "let s:man_tag_buf=s:man_tag_buf_".s:man_tag_depth exec "let s:man_tag_lin=s:man_tag_lin_".s:man_tag_depth exec "let s:man_tag_col=s:man_tag_col_".s:man_tag_depth exec s:man_tag_buf."b" exec s:man_tag_lin exec "norm! ".s:man_tag_col."|" exec "unlet s:man_tag_buf_".s:man_tag_depth exec "unlet s:man_tag_lin_".s:man_tag_depth exec "unlet s:man_tag_col_".s:man_tag_depth unlet s:man_tag_buf s:man_tag_lin s:man_tag_col endif endfunc endif let &cpo = s:cpo_save unlet s:cpo_save " vim: set sw=2 ts=8 noet: