diff options
Diffstat (limited to 'vim/plugin')
| -rw-r--r-- | vim/plugin/latexlivepreview.vim | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/vim/plugin/latexlivepreview.vim b/vim/plugin/latexlivepreview.vim new file mode 100644 index 0000000..5f7c6de --- /dev/null +++ b/vim/plugin/latexlivepreview.vim @@ -0,0 +1,192 @@ +" Copyright (C) 2012 Hong Xu + +" This file is part of vim-live-preview. + +" vim-live-preview is free software: you can redistribute it and/or modify it +" under the terms of the GNU General Public License as published by the Free +" Software Foundation, either version 3 of the License, or (at your option) +" any later version. + +" vim-live-preview is distributed in the hope that it will be useful, but +" WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +" or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +" more details. + +" You should have received a copy of the GNU General Public License along with +" vim-live-preview. If not, see <http://www.gnu.org/licenses/>. + + +if v:version < 700 + finish +endif + +" check whether this script is already loaded +if exists("g:loaded_vim_live_preview") + finish +endif +let g:loaded_vim_live_preview = 1 + +" this plugin requires +python feature +if !has('python') + finish +endif + +let s:saved_cpo = &cpo +set cpo&vim + +let s:previewer = '' + +" Run a shell command in background +function! s:RunInBackground(cmd) + +python << EEOOFF + +try: + subprocess.Popen( + vim.eval('a:cmd'), + shell = True, + universal_newlines = True, + stdout=open(os.devnull, 'w'), stderr=subprocess.STDOUT) + +except: + pass +EEOOFF +endfunction + +function! s:Compile() + + if !exists('b:livepreview_buf_data') || + \ has_key(b:livepreview_buf_data, 'preview_running') == 0 || + \ b:livepreview_buf_data['preview_running'] == 0 + return + endif + + lcd %:p:h + + silent exec 'write! ' . b:livepreview_buf_data['tmp_src_file'] + + call s:RunInBackground( + \ 'pdflatex -shell-escape -interaction=nonstopmode -output-directory=' . + \ b:livepreview_buf_data['tmp_dir'] . ' ' . + \ b:livepreview_buf_data['tmp_src_file']) + + if b:livepreview_buf_data['has_bibliography'] + " ToDo: Make the following work in Windows + call system('cd ' . b:livepreview_buf_data['tmp_dir'] . + \ ' && bibtex *.aux') + endif + + lcd - +endfunction + +function! s:StartPreview() + lcd %:p:h + + let b:livepreview_buf_data = {} + + " Create a temp directory for current buffer + python << EEOOFF +vim.command("let b:livepreview_buf_data['tmp_dir'] = '" + + tempfile.mkdtemp() + "'") +EEOOFF + + let b:livepreview_buf_data['tmp_src_file'] = + \ b:livepreview_buf_data['tmp_dir'] . '/' . + \ fnameescape(expand('%:r')) . '.' . expand('%:e') + + silent exec 'write! ' . b:livepreview_buf_data['tmp_src_file'] + + let l:tmp_out_file = b:livepreview_buf_data['tmp_dir'] . '/' . + \ fnameescape(expand('%:r')) . '.pdf' + + silent call system('pdflatex -shell-escape -interaction=nonstopmode -output-directory=' . + \ b:livepreview_buf_data['tmp_dir'] . ' ' . + \ b:livepreview_buf_data['tmp_src_file']) + if v:shell_error != 0 + echo 'Failed to compile' + endif + + " Enable compilation of bibliography: + let l:bib_files = split( glob( expand( '%:h' ) . '/**/*bib' ) ) + let b:livepreview_buf_data['has_bibliography'] = 0 + if len( l:bib_files ) > 0 + let b:livepreview_buf_data['has_bibliography'] = 1 + for bib_file in l:bib_files + let bib_fn = fnamemodify(bib_file, ':t') + call writefile(readfile(bib_file), + \ b:livepreview_buf_data['tmp_dir'] . '/' . bib_fn ) + endfor + " ToDo: Make the following work in Windows + silent call system('cd ' . b:livepreview_buf_data['tmp_dir'] . + \ ' && bibtex *.aux') + " Bibtex requires multiple latex compilations: + silent call system( + \ 'pdflatex -shell-escape -interaction=nonstopmode -output-directory=' . + \ b:livepreview_buf_data['tmp_dir'] . ' ' . + \ b:livepreview_buf_data['tmp_src_file']) + endif + if v:shell_error != 0 + echo 'Failed to compile bibliography' + endif + + call s:RunInBackground(s:previewer . ' ' . l:tmp_out_file) + + lcd - + + let b:livepreview_buf_data['preview_running'] = 1 +endfunction + +" Initialization code +function! s:Initialize() + let l:ret = 0 + python << EEOOFF +try: + import vim + import tempfile + import subprocess + import os +except: + vim.command('let l:ret = 1') +EEOOFF + + if l:ret != 0 + return 'Python initialization failed.' + endif + + " Get the previewer + if exists('g:livepreview_previewer') + let s:previewer = g:livepreview_previewer + else + for possible_previewer in [ + \ 'evince', + \ 'okular'] + if executable(possible_previewer) + let s:previewer = possible_previewer + break + endif + endfor + endif + + return 0 +endfunction + + +let s:init_msg = s:Initialize() + +if type(s:init_msg) == type('') + echohl ErrorMsg + echo 'vim-live-preview: ' . s:init_msg + echohl None +endif + +unlet! s:init_msg + +command! LLPStartPreview call s:StartPreview() + +autocmd CursorHold,CursorHoldI,BufWritePost *.tex call s:Compile() + +let &cpo = s:saved_cpo +unlet! s:saved_cpo + +" vim703: cc=80 +" vim:fdm=marker et ts=4 tw=78 sw=4 |