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-rw-r--r--vim/plugin/latexlivepreview.vim192
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