367 lines
9.8 KiB
VimL
367 lines
9.8 KiB
VimL
" LaTeX plugin for Vim
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"
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" Maintainer: Karl Yngve Lervåg
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" Email: karl.yngve@gmail.com
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"
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" Utility functions sorted by name
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"
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function! latex#util#convert_back(line) " {{{1
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"
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" Substitute stuff like '\IeC{\"u}' to corresponding unicode symbols
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"
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let line = a:line
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for [pat, symbol] in s:convert_back_list
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let line = substitute(line, pat, symbol, 'g')
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endfor
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"
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" There might be some missing conversions, which might be fixed by the last
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" substitution
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"
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return substitute(line, '\C\(\\IeC\s*{\)\?\\.\(.\)}', '\1', 'g')
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endfunction
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let s:convert_back_list = map([
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\ ['\\''A}' , 'Á'],
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\ ['\\`A}' , 'À'],
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\ ['\\^A}' , 'À'],
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\ ['\\¨A}' , 'Ä'],
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\ ['\\"A}' , 'Ä'],
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\ ['\\''a}' , 'á'],
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\ ['\\`a}' , 'à'],
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\ ['\\^a}' , 'à'],
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\ ['\\¨a}' , 'ä'],
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\ ['\\"a}' , 'ä'],
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\ ['\\''E}' , 'É'],
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\ ['\\`E}' , 'È'],
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\ ['\\^E}' , 'Ê'],
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\ ['\\¨E}' , 'Ë'],
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\ ['\\"E}' , 'Ë'],
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\ ['\\''e}' , 'é'],
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\ ['\\`e}' , 'è'],
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\ ['\\^e}' , 'ê'],
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\ ['\\¨e}' , 'ë'],
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\ ['\\"e}' , 'ë'],
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\ ['\\''I}' , 'Í'],
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\ ['\\`I}' , 'Î'],
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\ ['\\^I}' , 'Ì'],
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\ ['\\¨I}' , 'Ï'],
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\ ['\\"I}' , 'Ï'],
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\ ['\\''i}' , 'í'],
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\ ['\\`i}' , 'î'],
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\ ['\\^i}' , 'ì'],
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\ ['\\¨i}' , 'ï'],
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\ ['\\"i}' , 'ï'],
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\ ['\\''{\?\\i }' , 'í'],
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\ ['\\''O}' , 'Ó'],
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\ ['\\`O}' , 'Ò'],
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\ ['\\^O}' , 'Ô'],
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\ ['\\¨O}' , 'Ö'],
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\ ['\\"O}' , 'Ö'],
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\ ['\\''o}' , 'ó'],
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\ ['\\`o}' , 'ò'],
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\ ['\\^o}' , 'ô'],
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\ ['\\¨o}' , 'ö'],
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\ ['\\"o}' , 'ö'],
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\ ['\\o }' , 'ø'],
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\ ['\\''U}' , 'Ú'],
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\ ['\\`U}' , 'Ù'],
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\ ['\\^U}' , 'Û'],
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\ ['\\¨U}' , 'Ü'],
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\ ['\\"U}' , 'Ü'],
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\ ['\\''u}' , 'ú'],
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\ ['\\`u}' , 'ù'],
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\ ['\\^u}' , 'û'],
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\ ['\\¨u}' , 'ü'],
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\ ['\\"u}' , 'ü'],
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\ ['\\`N}' , 'Ǹ'],
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\ ['\\\~N}' , 'Ñ'],
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\ ['\\''n}' , 'ń'],
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\ ['\\`n}' , 'ǹ'],
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\ ['\\\~n}' , 'ñ'],
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\], '[''\C\(\\IeC\s*{\)\?'' . v:val[0], v:val[1]]')
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function! latex#util#error_deprecated(variable) " {{{1
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if exists(a:variable)
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echoerr "Deprecation error: " . a:variable
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echoerr "Please red docs for more info!"
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echoerr ":h vim-latex-changelog"
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endif
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endfunction
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function! latex#util#execute(exe) " {{{1
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" Execute the given command on the current system. Wrapper function to make
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" it easier to run on both windows and unix.
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"
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" The command is given in the argument exe, which should be a dictionary with
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" the following entries:
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"
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" exe.cmd String String that contains the command to run
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" exe.bg 0 or 1 Run in background or not
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" exe.null 0 or 1 Send output to /dev/null
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" exe.wd String Run command in provided working directory
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"
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" Only exe.cmd is required.
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"
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" Check and parse arguments
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if !has_key(a:exe, 'cmd')
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echoerr "Error in latex#util#execute!"
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echoerr "Argument error, exe.cmd does not exist!"
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return
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endif
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let bg = has_key(a:exe, 'bg') ? a:exe.bg : 1
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let null = has_key(a:exe, 'null') ? a:exe.null : 1
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" Change directory if wanted
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if has_key(a:exe, 'wd')
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let pwd = getcwd()
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execute 'lcd ' . a:exe.wd
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endif
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" Set up command string based on the given system
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if has('win32')
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if bg
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let cmd = '!start /b ' . a:exe.cmd
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else
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let cmd = '!' . a:exe.cmd
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endif
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if null
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let cmd .= ' >nul'
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endif
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else
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let cmd = '!' . a:exe.cmd
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if null
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let cmd .= ' &>/dev/null'
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endif
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if bg
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let cmd .= ' &'
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endif
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endif
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silent execute cmd
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" Return to previous working directory
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if has_key(a:exe, 'wd')
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execute 'lcd ' . pwd
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endif
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if !has("gui_running")
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redraw!
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endif
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endfunction
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" }}}1
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function! latex#util#get_env(...) " {{{1
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" latex#util#get_env([with_pos])
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" Returns:
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" - environment
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" if with_pos is not given
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" - [environment, lnum_begin, cnum_begin, lnum_end, cnum_end]
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" if with_pos is nonzero
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let with_pos = a:0 > 0 ? a:1 : 0
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let begin_pat = '\C\\begin\_\s*{[^}]*}\|\\\@<!\\\[\|\\\@<!\\('
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let end_pat = '\C\\end\_\s*{[^}]*}\|\\\@<!\\\]\|\\\@<!\\)'
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let saved_pos = getpos('.')
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" move to the left until on a backslash
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let [bufnum, lnum, cnum, off] = getpos('.')
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let line = getline(lnum)
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while cnum > 1 && line[cnum - 1] != '\'
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let cnum -= 1
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endwhile
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call cursor(lnum, cnum)
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" match begin/end pairs but skip comments
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let flags = 'bnW'
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if strpart(getline('.'), col('.') - 1) =~ '^\%(' . begin_pat . '\)'
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let flags .= 'c'
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endif
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let [lnum1, cnum1] = searchpairpos(begin_pat, '', end_pat, flags,
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\ 'latex#util#in_comment()')
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let env = ''
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if lnum1
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let line = strpart(getline(lnum1), cnum1 - 1)
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if empty(env)
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let env = matchstr(line, '^\C\\begin\_\s*{\zs[^}]*\ze}')
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endif
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if empty(env)
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let env = matchstr(line, '^\\\[')
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endif
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if empty(env)
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let env = matchstr(line, '^\\(')
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endif
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endif
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if with_pos == 1
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let flags = 'nW'
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if !(lnum1 == lnum && cnum1 == cnum)
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let flags .= 'c'
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endif
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let [lnum2, cnum2] = searchpairpos(begin_pat, '', end_pat, flags,
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\ 'latex#util#in_comment()')
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call setpos('.', saved_pos)
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return [env, lnum1, cnum1, lnum2, cnum2]
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else
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call setpos('.', saved_pos)
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return env
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endif
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endfunction
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function! latex#util#get_delim() " {{{1
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" Save position in order to restore before finishing
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let pos_original = getpos('.')
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" Save position for more work later
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let pos_save = getpos('.')
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" Check if the cursor is on top of a closing delimiter
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let close_pats = '\(' . join(s:delimiters_close, '\|') . '\)'
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let lnum = pos_save[1]
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let cnum = pos_save[2]
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let [lnum, cnum] = searchpos(close_pats, 'cbnW', lnum)
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let delim = matchstr(getline(lnum), '^'. close_pats, cnum-1)
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if pos_save[2] <= (cnum + len(delim) - 1)
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let pos_save[1] = lnum
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let pos_save[2] = cnum
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call setpos('.', pos_save)
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endif
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let d1=''
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let d2=''
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let l1=1000000
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let l2=1000000
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let c1=1000000
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let c2=1000000
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for i in range(len(s:delimiters_open))
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call setpos('.', pos_save)
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let open = s:delimiters_open[i]
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let close = s:delimiters_close[i]
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let flags = 'W'
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" Check if the cursor is on top of an opening delimiter. If it is not,
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" then we want to include matches at cursor position to match closing
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" delimiters.
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if searchpos(open, 'cn') != pos_save[1:2]
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let flags .= 'c'
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endif
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" Search for closing delimiter
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let pos = searchpairpos(open, '', close, flags, 'latex#util#in_comment()')
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" Check if the current is pair is the closest pair
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if pos[0] && pos[0]*1000 + pos[1] < l2*1000 + c2
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let l2=pos[0]
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let c2=pos[1]
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let d2=matchstr(strpart(getline(l2), c2 - 1), close)
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let pos = searchpairpos(open,'',close,'bW', 'latex#util#in_comment()')
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let l1=pos[0]
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let c1=pos[1]
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let d1=matchstr(strpart(getline(l1), c1 - 1), open)
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endif
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endfor
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" Restore cursor position and return delimiters and positions
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call setpos('.', pos_original)
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return [d1,l1,c1,d2,l2,c2]
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endfunction
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let s:delimiters_open = [
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\ '(',
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\ '\[',
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\ '\\{',
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\ '\\\Cleft\s*\%([^\\a-zA-Z0-9]\|\\.\|\\\a*\)',
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\ '\\\cbigg\?\((\|\[\|\\{\)',
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\ ]
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let s:delimiters_close = [
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\ ')',
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\ '\]',
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\ '\\}',
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\ '\\\Cright\s*\%([^\\a-zA-Z0-9]\|\\.\|\\\a*\)',
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\ '\\\cbigg\?\()\|\]\|\\}\)',
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\ ]
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function! latex#util#has_syntax(name, ...) " {{{1
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" Usage: latex#util#has_syntax(name, [line], [col])
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let line = a:0 >= 1 ? a:1 : line('.')
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let col = a:0 >= 2 ? a:2 : col('.')
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return 0 <= index(map(synstack(line, col),
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\ 'synIDattr(v:val, "name") == "' . a:name . '"'), 1)
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endfunction
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function! latex#util#in_comment(...) " {{{1
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return synIDattr(synID(line('.'), col('.'), 0), "name") =~# '^texComment'
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endfunction
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function! latex#util#kpsewhich(file, ...) " {{{1
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let cmd = 'kpsewhich '
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let cmd .= a:0 > 0 ? a:1 : ''
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let cmd .= ' "' . a:file . '"'
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let out = system(cmd)
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" If kpsewhich has found something, it returns a non-empty string with a
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" newline at the end; otherwise the string is empty
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if len(out)
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" Remove the trailing newline
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let out = fnamemodify(out[:-2], ':p')
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endif
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return out
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endfunction
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function! latex#util#set_default(variable, default) " {{{1
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if !exists(a:variable)
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let {a:variable} = a:default
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endif
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endfunction
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function! latex#util#tex2tree(str) " {{{1
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let tree = []
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let i1 = 0
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let i2 = -1
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let depth = 0
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while i2 < len(a:str)
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let i2 = match(a:str, '[{}]', i2 + 1)
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if i2 < 0
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let i2 = len(a:str)
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endif
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if i2 >= len(a:str) || a:str[i2] == '{'
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if depth == 0
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let item = substitute(strpart(a:str, i1, i2 - i1),
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\ '^\s*\|\s*$', '', 'g')
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if !empty(item)
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call add(tree, item)
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endif
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let i1 = i2 + 1
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endif
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let depth += 1
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else
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let depth -= 1
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if depth == 0
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call add(tree, latex#util#tex2tree(strpart(a:str, i1, i2 - i1)))
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let i1 = i2 + 1
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endif
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endif
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endwhile
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return tree
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endfunction
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function! latex#util#tree2tex(tree) " {{{1
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if type(a:tree) == type('')
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return a:tree
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else
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return '{' . join(map(a:tree, 'latex#util#tree2tex(v:val)'), '') . '}'
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endif
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endfunction
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" }}}1
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" vim: fdm=marker
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