pdf.vim (2685B)
1 " Vim filetype plugin file 2 " Language: PDF 3 " Maintainer: Tim Pope <vimNOSPAM@tpope.info> 4 " Last Change: 2007 Dec 16 5 " 2024 May 23 by Riley Bruins <ribru17@gmail.com> ('commentstring') 6 7 if exists("b:did_ftplugin") 8 finish 9 endif 10 let b:did_ftplugin = 1 11 12 setlocal commentstring=%\ %s 13 setlocal comments=:% 14 let b:undo_ftplugin = "setlocal cms< com< | unlet! b:match_words" 15 16 if exists("g:loaded_matchit") 17 let b:match_words = '\<\%(\d\+\s\+\d\+\s\+\)obj\>:\<endobj\>,\<stream$:\<endstream\>,\<xref\>:\<trailer\>,<<:>>' 18 endif 19 20 if exists("g:no_plugin_maps") || exists("g:no_pdf_maps") || v:version < 700 21 finish 22 endif 23 24 if !exists("b:pdf_tagstack") 25 let b:pdf_tagstack = [] 26 endif 27 28 let b:undo_ftplugin .= " | silent! nunmap <buffer> <C-]> | silent! nunmap <buffer> <C-T>" 29 nnoremap <silent><buffer> <C-]> :call <SID>Tag()<CR> 30 " Inline, so the error from an empty tag stack will be simple. 31 nnoremap <silent><buffer> <C-T> :if len(b:pdf_tagstack) > 0 <Bar> call setpos('.',remove(b:pdf_tagstack, -1)) <Bar> else <Bar> exe "norm! \<Lt>C-T>" <Bar> endif<CR> 32 33 function! s:Tag() 34 call add(b:pdf_tagstack,getpos('.')) 35 if getline('.') =~ '^\d\+$' && getline(line('.')-1) == 'startxref' 36 return s:dodigits(getline('.')) 37 elseif getline('.') =~ '/Prev\s\+\d\+\>\%(\s\+\d\)\@!' && expand("<cword>") =~ '^\d\+$' 38 return s:dodigits(expand("<cword>")) 39 elseif getline('.') =~ '^\d\{10\} \d\{5\} ' 40 return s:dodigits(matchstr(getline('.'),'^\d\+')) 41 else 42 let line = getline(".") 43 let lastend = 0 44 let pat = '\<\d\+\s\+\d\+\s\+R\>' 45 while lastend >= 0 46 let beg = match(line,'\C'.pat,lastend) 47 let end = matchend(line,'\C'.pat,lastend) 48 if beg < col(".") && end >= col(".") 49 return s:doobject(matchstr(line,'\C'.pat,lastend)) 50 endif 51 let lastend = end 52 endwhile 53 return s:notag() 54 endif 55 endfunction 56 57 function! s:doobject(string) 58 let first = matchstr(a:string,'^\s*\zs\d\+') 59 let second = matchstr(a:string,'^\s*\d\+\s\+\zs\d\+') 60 norm! m' 61 if first != '' && second != '' 62 let oldline = line('.') 63 let oldcol = col('.') 64 1 65 if !search('^\s*'.first.'\s\+'.second.'\s\+obj\>') 66 exe oldline 67 exe 'norm! '.oldcol.'|' 68 return s:notag() 69 endif 70 endif 71 endfunction 72 73 function! s:dodigits(digits) 74 let digits = 0 + substitute(a:digits,'^0*','','') 75 norm! m' 76 if digits <= 0 77 norm! 1go 78 else 79 " Go one character before the destination and advance. This method 80 " lands us after a newline rather than before, if that is our target. 81 exe "goto ".(digits)."|norm! 1 " 82 endif 83 endfunction 84 85 function! s:notag() 86 silent! call remove(b:pdf_tagstack,-1) 87 echohl ErrorMsg 88 echo "E426: tag not found" 89 echohl NONE 90 endfunction