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ultimate-vim/vim_plugins_src/latexSuite-1.5/ftplugin/tex/texviewer.vim

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" ============================================================================
" File: texviewer.vim
" Author: Mikolaj Machowski
" Created: Sun Jan 26 06:00 PM 2003
" Description: make a viewer for various purposes: \cite{, \ref{
" License: Vim Charityware License
" Part of vim-latexSuite: http://vim-latex.sourceforge.net
" CVS: $Id: texviewer.vim,v 1.32 2003/09/02 07:15:30 srinathava Exp $
" ============================================================================
if exists("g:Tex_Completion")
call Tex_SetTexViewerMaps()
finish
endif
let g:Tex_Completion = 1
" Tex_SetTexViewerMaps: sets maps for this ftplugin {{{
function! Tex_SetTexViewerMaps()
inoremap <silent> <Plug>Tex_Completion <Esc>:call Tex_Complete("default","text")<CR>
if !hasmapto('<Plug>Tex_Completion', 'i')
if has('gui_running')
imap <buffer> <silent> <F9> <Plug>Tex_Completion
else
imap <buffer> <F9> <Plug>Tex_Completion
endif
endif
endfunction
" call this function the first time
call Tex_SetTexViewerMaps()
" }}}
command -nargs=1 TLook call Tex_Complete(<q-args>, 'tex')
command -nargs=1 TLookAll call Tex_Complete(<q-args>, 'all')
command -nargs=1 TLookBib call Tex_Complete(<q-args>, 'bib')
" ==============================================================================
" Main completion function
" ==============================================================================
" Tex_Complete: main function {{{
" Description:
function! Tex_Complete(what, where)
" Get info about current window and position of cursor in file
let s:winnum = winnr()
" Change to the directory of the file being edited before running all the
" :grep commands. We will change back to the original directory after we
" finish with the grep.
let s:origdir = getcwd()
cd %:p:h
let s:pos = line('.').' | normal! '.virtcol('.').'|'
unlet! s:type
unlet! s:typeoption
if a:where == "text"
" What to do after <F9> depending on context
let s:curfile = expand("%:p")
let s:curline = strpart(getline('.'), col('.') - 40, 40)
let s:prefix = matchstr(s:curline, '.*{\zs.\{-}$')
" a command is of the type
" \psfig[option=value]{figure=}
" Thus
" s:curline = '\psfig[option=value]{figure='
" (with possibly some junk before \includegraphics)
" from which we need to extract
" s:type = 'psfig'
" s:typeoption = '[option=value]'
let pattern = '.*\\\(\w\{-}\)\(\[.\{-}\]\)\?{\(\S\+\)\?$'
if s:curline =~ pattern
let s:type = substitute(s:curline, pattern, '\1', 'e')
let s:typeoption = substitute(s:curline, pattern, '\2', 'e')
call Tex_Debug('s:type = '.s:type.', typeoption = '.s:typeoption, 'view')
endif
if exists("s:type") && s:type =~ 'ref'
call Tex_Debug("silent! grep! '".Tex_EscapeForGrep('\label{'.s:prefix)."' *.tex", 'view')
exec "silent! grep! '".Tex_EscapeForGrep('\label{'.s:prefix)."' *.tex"
redraw!
call <SID>Tex_SetupCWindow()
elseif exists("s:type") && s:type =~ 'cite'
" grep! nothing %
" does _not_ clear the search history contrary to what the
" help-docs say. This was expected. So use something improbable.
" TODO: Is there a way to clear the search-history w/o making a
" useless, inefficient search?
let s:prefix = matchstr(s:prefix, '\([^,]\+,\)\+\zs\([^,]\+\)\ze$')
silent! grep! ____HIGHLY_IMPROBABLE___ %
if g:Tex_RememberCiteSearch && exists('s:citeSearchHistory')
call <SID>Tex_SetupCWindow(s:citeSearchHistory)
else
call Tex_Debug('calling Tex_GrepForBibItems', 'bib')
call Tex_GrepForBibItems(s:prefix)
redraw!
call <SID>Tex_SetupCWindow()
endif
if g:Tex_RememberCiteSearch && &ft == 'qf'
let _a = @a
silent! normal! ggVG"ay
let s:citeSearchHistory = @a
let @a = _a
endif
elseif exists("s:type") && (s:type =~ 'includegraphics' || s:type == 'psfig')
call Tex_SetupFileCompletion(
\ '',
\ '^\.\\|\.tex$\\|\.bib$\\|\.bbl$\\|\.zip$\\|\.gz$',
\ 'noext')
elseif exists("s:type") && s:type == 'bibliography'
call Tex_SetupFileCompletion(
\ '\.b..$',
\ '',
\ 'noext')
elseif exists("s:type") && s:type =~ 'include\(only\)\='
call Tex_SetupFileCompletion(
\ '\.t..$',
\ '',
\ 'noext')
elseif exists("s:type") && s:type == 'input'
call Tex_SetupFileCompletion(
\ '',
\ '',
\ 'ext')
elseif exists('s:type') && exists("g:Tex_completion_".s:type)
call <SID>Tex_CompleteRefCiteCustom('plugin_'.s:type)
else
let s:word = matchstr(s:curline, '\zs\k\{-}$')
if s:word == ''
if col('.') == strlen(getline('.'))
startinsert!
return
else
normal! l
startinsert
return
endif
endif
call Tex_Debug("silent! grep! '\\<".s:word."' *.tex", 'view')
exe "silent! grep! '\\<".s:word."' *.tex"
call <SID>Tex_SetupCWindow()
endif
elseif a:where == 'tex'
" Process :TLook command
exe "silent! grep! '".a:what."' *.tex"
call <SID>Tex_SetupCWindow()
elseif a:where == 'bib'
" Process :TLookBib command
exe "silent! grep! '".a:what."' *.bib"
exe "silent! grepadd! '".a:what."' *.bbl"
call <SID>Tex_SetupCWindow()
elseif a:where == 'all'
" Process :TLookAll command
exe "silent! grep! '".a:what."' *"
call <SID>Tex_SetupCWindow()
endif
endfunction " }}}
" Tex_CompleteWord: inserts a word at the chosen location {{{
" Description:
function! Tex_CompleteWord(completeword)
exe s:pos
" Complete word, check if add closing }
exe 'normal! a'.a:completeword."\<Esc>"
if getline('.')[col('.')-1] !~ '{' && getline('.')[col('.')] !~ '}'
exe "normal! a}\<Esc>"
endif
" Return to Insert mode
if col('.') == strlen(getline('.'))
startinsert!
else
normal! l
startinsert
endif
endfunction " }}}
" ==============================================================================
" File name completion helper functons
" ==============================================================================
" Tex_SetupFileCompletion: {{{
" Description:
function! Tex_SetupFileCompletion(accept, reject, ext)
call FB_SetVar('FB_AllowRegexp', a:accept)
call FB_SetVar('FB_RejectRegexp', a:reject)
call FB_SetVar('FB_CallBackFunction', 'Tex_CompleteFileName')
call FB_SetVar('FB_CallBackFunctionArgs', '"'.a:ext.'"')
call FB_OpenFileBrowser('.')
endfunction " }}}
" Tex_CompleteFileName: {{{
" Description:
function! Tex_CompleteFileName(filename, ext)
call Tex_Debug('getting filename = '.a:filename, 'view')
let completeword = Tex_RelPath(a:filename, expand('%:p'))
if a:ext == 'noext'
let completeword = fnamemodify(completeword, ':r')
endif
call Tex_CompleteWord(completeword)
endfunction " }}}
" Tex_Common: common part of strings {{{
function! s:Tex_Common(path1, path2)
" Assume the caller handles 'ignorecase'
if a:path1 == a:path2
return a:path1
endif
let n = 0
while a:path1[n] == a:path2[n]
let n = n+1
endwhile
return strpart(a:path1, 0, n)
endfunction " }}}
" Tex_NormalizePath: {{{
" Description:
function! Tex_NormalizePath(path)
let retpath = a:path
if has("win32") || has("win16") || has("dos32") || has("dos16")
let retpath = substitute(retpath, '\\', '/', 'ge')
endif
if isdirectory(retpath) && retpath !~ '/$'
let retpath = retpath.'/'
endif
return retpath
endfunction " }}}
" Tex_RelPath: ultimate file name {{{
function! Tex_RelPath(explfilename,texfilename)
let path1 = Tex_NormalizePath(a:explfilename)
let path2 = Tex_NormalizePath(a:texfilename)
let n = matchend(<SID>Tex_Common(path1, path2), '.*/')
let path1 = strpart(path1, n)
let path2 = strpart(path2, n)
if path2 !~ '/'
let subrelpath = ''
else
let subrelpath = substitute(path2, '[^/]\{-}/', '../', 'ge')
let subrelpath = substitute(subrelpath, '[^/]*$', '', 'ge')
endif
let relpath = subrelpath.path1
return escape(Tex_NormalizePath(relpath), ' ')
endfunction " }}}
" ==============================================================================
" Ref/Cite completion helper functions
" ==============================================================================
" Tex_SetupCWindow: set maps and local settings for cwindow {{{
" Description: Set local maps jkJKq<cr> for cwindow. Also size and basic
" settings
"
function! s:Tex_SetupCWindow(...)
call Tex_Debug('+Tex_SetupCWindow', 'view')
cclose
exe 'copen '. g:Tex_ViewerCwindowHeight
" If called with an argument, it means we want to re-use some search
" history from last time. Therefore, just paste it here and proceed.
if a:0 == 1
set modifiable
% d _
silent! 0put!=a:1
$ d _
endif
setlocal nonumber
setlocal nowrap
let s:scrollOffVal = &scrolloff
call <SID>Tex_SyncPreviewWindow()
" If everything went well, then we should be situated in the quickfix
" window. If there were problems, (no matches etc), then we will not be.
" Therefore return.
if &ft != 'qf'
call Tex_Debug('not in quickfix window, quitting', 'view')
return
endif
nnoremap <buffer> <silent> j j:call <SID>Tex_SyncPreviewWindow()<CR>
nnoremap <buffer> <silent> k k:call <SID>Tex_SyncPreviewWindow()<CR>
nnoremap <buffer> <silent> <up> <up>:call <SID>Tex_SyncPreviewWindow()<CR>
nnoremap <buffer> <silent> <down> <down>:call <SID>Tex_SyncPreviewWindow()<CR>
" Change behaviour of <cr> only for 'ref' and 'cite' context.
if exists("s:type") && s:type =~ 'ref\|cite'
exec 'nnoremap <buffer> <silent> <cr> '
\ .':set scrolloff='.s:scrollOffVal.'<CR>'
\ .':cd '.s:origdir.'<CR>'
\ .':silent! call <SID>Tex_CompleteRefCiteCustom("'.s:type.'")<CR>'
else
" In other contexts jump to place described in cwindow and close small
" windows
exec 'nnoremap <buffer> <silent> <cr> '
\ .':set scrolloff='.s:scrollOffVal.'<CR>'
\ .':cd '.s:origdir.'<CR>'
\ .':call <SID>Tex_GoToLocation()<cr>'
endif
" Scroll the preview window while in the quickfix window
nnoremap <buffer> <silent> J :wincmd j<cr><c-e>:wincmd k<cr>
nnoremap <buffer> <silent> K :wincmd j<cr><c-y>:wincmd k<cr>
" Exit the quickfix window without doing anything.
exe 'nnoremap <buffer> <silent> q '
\ .':set scrolloff='.s:scrollOffVal.'<CR>'
\ .':cd '.s:origdir.'<CR>'
\ .':call Tex_CloseSmallWindows()<CR>'
endfunction " }}}
" Tex_CompleteRefCiteCustom: complete/insert name for current item {{{
" Description: handle completion of items depending on current context
"
function! s:Tex_CompleteRefCiteCustom(type)
if a:type =~ 'cite'
if getline('.') =~ '\\bibitem{'
let bibkey = matchstr(getline('.'), '\\bibitem{\zs.\{-}\ze}')
else
let bibkey = matchstr(getline('.'), '{\zs.\{-}\ze,')
endif
let completeword = strpart(bibkey, strlen(s:prefix))
elseif a:type =~ 'ref'
let label = matchstr(getline('.'), '\\label{\zs.\{-}\ze}')
let completeword = strpart(label, strlen(s:prefix))
elseif a:type =~ '^plugin_'
let type = substitute(a:type, '^plugin_', '', '')
let completeword = <SID>Tex_DoCompletion(type)
endif
call Tex_CloseSmallWindows()
call Tex_CompleteWord(completeword)
endfunction " }}}
" Tex_SyncPreviewWindow: synchronize quickfix and preview window {{{
" Description: Usually quickfix engine takes care about most of these things
" but we discard it for better control of events.
"
function! s:Tex_SyncPreviewWindow()
call Tex_Debug('+Tex_SyncPreviewWindow', 'view')
let viewfile = matchstr(getline('.'), '^\f*\ze|\d')
let viewline = matchstr(getline('.'), '|\zs\d\+\ze|')
" Hilight current line in cwindow
" Normally hightlighting is done with quickfix engine but we use something
" different and have to do it separately
syntax clear
runtime syntax/qf.vim
exe 'syn match vTodo /\%'. line('.') .'l.*/'
hi link vTodo Todo
" Close preview window and open it again in new place
pclose
exe 'silent! bot pedit +'.viewline.' '.viewfile
" Vanilla 6.1 has bug. This additional setting of cwindow height prevents
" resizing of this window
exe g:Tex_ViewerCwindowHeight.' wincmd _'
" Handle situation if there is no item beginning with s:prefix.
" Unfortunately, because we know it late we have to close everything and
" return as in complete process
if v:errmsg =~ 'E32\>'
exe s:winnum.' wincmd w'
pclose!
cclose
if exists("s:prefix")
echomsg 'No bibkey, label or word beginning with "'.s:prefix.'"'
endif
if col('.') == strlen(getline('.'))
startinsert!
else
normal! l
startinsert
endif
let v:errmsg = ''
call Tex_Debug('Tex_SyncPreviewWindow: got error E32, no matches found, quitting', 'view')
return 0
endif
" Move to preview window. Really is it under cwindow?
wincmd j
" Settings of preview window
exe g:Tex_ViewerPreviewHeight.' wincmd _'
setlocal foldlevel=10
if exists('s:type') && s:type =~ 'cite'
" In cite context place bibkey at the top of preview window.
setlocal scrolloff=0
normal! zt
else
" In other contexts in the middle. Highlight this line?
setlocal scrolloff=100
normal! z.
endif
" Return to cwindow
wincmd p
endfunction " }}}
" Tex_CloseSmallWindows: {{{
" Description:
"
function! Tex_CloseSmallWindows()
exe s:winnum.' wincmd w'
pclose!
cclose
exe s:pos
endfunction " }}}
" Tex_GoToLocation: Go to chosen location {{{
" Description: Get number of current line and go to this number
"
function! s:Tex_GoToLocation()
pclose!
let errmsg = v:errmsg
let v:errmsg = ''
exe 'silent! cc ' . line('.')
" If the current buffer is modified, then split
if v:errmsg =~ '^E37:'
split
exe 'silent! cc ' . line('.')
endif
cclose
let v:errmsg = errmsg
endfunction " }}}
" ==============================================================================
" Bibliography specific functions
" ==============================================================================
" Tex_GrepForBibItems: grep main filename for bib items {{{
" Description:
function! Tex_GrepForBibItems(prefix)
let mainfname = Tex_GetMainFileName(':p:r')
let toquit = 0
if bufnr('%') != bufnr(mainfname)
exec 'split '.mainfname
let toquit = 1
endif
let _path = &path
let _suffixesadd = &suffixesadd
let &path = '.,'.g:Tex_BIBINPUTS
let &suffixesadd = '.tex'
let pos = line('.').'| normal! '.virtcol('.').'|'
let foundCiteFile = Tex_ScanFileForCite(a:prefix)
exec pos
let &path = _path
let &suffixesadd = _suffixesadd
if foundCiteFile
if toquit
q
endif
return
endif
endfunction " }}}
" Tex_ScanFileForCite: search for \bibitem's in .bib or .bbl or tex files {{{
" Description:
" Search for bibliographic entries in the presently edited file in the
" following manner:
" 1. First see if the file has a \bibliography command.
" If YES:
" 1. If a .bib file corresponding to the \bibliography command can be
" found, then search for '@.*'.a:prefix inside it.
" 2. Otherwise, if a .bbl file corresponding to the \bibliography command
" can be found, then search for '\bibitem'.a:prefix inside it.
" 2. Next see if the file has a \thebibliography environment
" If YES:
" 1. Search for '\bibitem'.a:prefix in this file.
"
" If neither a \bibliography or \begin{thebibliography} are found, then repeat
" steps 1 and 2 for every file \input'ed into this file. Abort any searching
" as soon as the first \bibliography or \begin{thebibliography} is found.
function! Tex_ScanFileForCite(prefix)
call Tex_Debug('searching for bibkeys in '.bufname('%').' (buffer #'.bufnr('%').')', 'bib')
let presBufNum = bufnr('%')
let foundCiteFile = 0
" First find out if this file has a \bibliography command in it. If so,
" assume that this is the only file in the project which defines a
" bibliography.
if search('\\bibliography{', 'w')
call Tex_Debug('found bibliography command in '.bufname('%'), 'bib')
" convey that we have found a bibliography command. we do not need to
" proceed any further.
let foundCiteFile = 1
" extract the bibliography filenames from the command.
let bibnames = matchstr(getline('.'), '\\bibliography{\zs.\{-}\ze}')
let bibnames = substitute(bibnames, '\s', '', 'g')
call Tex_Debug('trying to search through ['.bibnames.']', 'bib')
let i = 1
while Tex_Strntok(bibnames, ',', i) != ''
" first try to find if a .bib file exists. If so do not search in
" the corresponding .bbl file. (because the .bbl file will most
" probly be generated automatically from the .bib file with
" bibtex).
" split a new window so we do not screw with the current buffer.
split
let thisbufnum = bufnr('%')
call Tex_Debug('silent! find '.Tex_Strntok(bibnames, ',', i).'.bib', 'bib')
exec 'silent! find '.Tex_Strntok(bibnames, ',', i).'.bib'
if bufnr('%') != thisbufnum
call Tex_Debug('finding .bib file ['.bufname('%').']', 'bib')
lcd %:p:h
" use the appropriate syntax for the .bib file.
exec "silent! grepadd '".Tex_EscapeForGrep('@.*{'.a:prefix)."' %"
else
let thisbufnum = bufnr('%')
exec 'silent! find '.Tex_Strntok(bibnames, ',', i).'.bbl'
call Tex_Debug('now in bufnum#'.bufnr('%'), 'bib')
if bufnr('%') != thisbufnum
call Tex_Debug('finding .bbl file ['.bufname('.').']', 'bib')
lcd %:p:h
exec "silent! grepadd '".Tex_EscapeForGrep('\bibitem{'.a:prefix)."' %"
endif
endif
" close the newly opened window
q
let i = i + 1
endwhile
if foundCiteFile
return 1
endif
endif
" If we have a thebibliography environment, then again assume that this is
" the only file which defines the bib-keys. Aand convey this information
" upwards by returning 1.
if search('^\s*\\begin{thebibliography}', 'w')
call Tex_Debug('got a thebibliography environment in '.bufname('%'), 'bib')
let foundCiteFile = 1
split
lcd %:p:h
exec "silent! grepadd ".Tex_EscapeForGrep('\bibitem{'.a:prefix)."' %")
q
return 1
endif
" If we have not found any \bibliography or \thebibliography environment
" in this file, search for these environments in all the files which this
" file includes.
exec 0
let wrap = 'w'
while search('^\s*\\\(input\|include\)', wrap)
let wrap = 'W'
let filename = matchstr(getline('.'), '\\\(input\|include\){\zs.\{-}\ze}')
split
let thisbufnum = bufnr('%')
exec 'silent! find '.filename
if bufnr('%') != thisbufnum
" DANGER! recursive call.
call Tex_Debug('scanning recursively in ['.bufname('%').']', 'bib')
let foundCiteFile = Tex_ScanFileForCite(a:prefix)
endif
q
if foundCiteFile
return 1
endif
endwhile
return 0
endfunction " }}}
" ==============================================================================
" Custom Completion help functions/settings
" ==============================================================================
" Tex_completion_{var}: similar variables can be set in package files {{{
let g:Tex_completion_bibliographystyle = 'abbr,alpha,plain,unsrt'
let g:Tex_completion_addtocontents = 'lof}{,lot}{,toc}{'
let g:Tex_completion_addcontentsline = 'lof}{figure}{,lot}{table}{,toc}{chapter}{,toc}{part}{,'.
\ 'toc}{section}{,toc}{subsection}{,toc}{paragraph}{,'.
\ 'toc}{subparagraph}{'
" }}}
" Tex_PromptForCompletion: prompts for a completion {{{
" Description:
function! s:Tex_PromptForCompletion(texcommand,ask)
let common_completion_prompt =
\ Tex_CreatePrompt(g:Tex_completion_{a:texcommand}, 2, ',') . "\n" .
\ 'Enter number or completion: '
let inp = input(a:ask."\n".common_completion_prompt)
if inp =~ '^[0-9]\+$'
let completion = Tex_Strntok(g:Tex_completion_{a:texcommand}, ',', inp)
else
let completion = inp
endif
return completion
endfunction " }}}
" Tex_DoCompletion: fast insertion of completion {{{
" Description:
"
function! s:Tex_DoCompletion(texcommand)
let completion = <SID>Tex_PromptForCompletion(a:texcommand, 'Choose a completion to insert: ')
if completion != ''
return completion
else
return ''
endif
endfunction " }}}
com! -nargs=0 TClearCiteHist unlet! s:citeSearchHistory
" this statement has to be at the end.
let s:doneOnce = 1
" vim:fdm=marker:nowrap:noet:ff=unix:ts=4:sw=4