pdfsync.sty

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%%%%  This is pdfsync.sty
%%%%  Ascii text file
%%%%  2004-01-31:
%%%%  \@@par is patched instead of \par
%%%%  The pdfsync anchor is now after the \@@par
%%%%  2004-01-20:
%%%%  \input{foo} is now supported, \input foo not
%%%%  no more underfull hbox
%%%%  cr and vbox are no longer supported, except in latex extras
%%%%  2004-01-13:
%%%%  A layout bug is fixed thanks to J.L. Varona:
%%%%  extra space was added in math mode $\sin$, $\notin$
%%%%  Patched LaTeX commands:
%%%%  \verse, \put, \emph, \comment, \href
%%%%  2003-12-18:
%%%%  The nothing option has been replaced by off 
%%%%  Patched LaTeX commands:
%%%%  2003-12-08:
%%%%  There is a bug in using everyvbox... novbox is now the default
%%%%  bug fixed: $0$ was not visible 
%%%%  2003-11-28:
%%%%  comment characters added to fix an error. Don't know exactly the cause...
%%%%  Default option is all...
%%%%  Could not use \everydisplay... (bug in eqnarray)
%%%%  2003-11-19
%%%%  first version
%%%%
%%%%  Version 0.6 usage: \usepackage[options]{pdfsync}
%%%%  ==================
%%%%  appends reference points before each \par and at each \hbox, inline math;
%%%%  Known commands:
%%%%  \pdfsync: add this command everywhere you want to reference a point
%%%%  \pdfsyncstop, \pdfsyncstart: if pdfsync beaks your code, enclose the dangerous part in stop start group
%%%%  option: nopar
%%%%  don't insert reference point at par's
%%%%  option: nomath
%%%%  don't insert reference point at math's
%%%%  option: nohbox
%%%%  don't insert reference point at hboxes
%%%%  option: noextra
%%%%  don't insert reference point at LaTeX extra commands
%%%%  option: off
%%%%  All the pdfsync related commands are \relax'ed
%%%%
%%%%  If you want additional files to be parsed, please use the command
%%%%  \include{foo} or \input{foo},
%%%%  the \input foo will break up the synchronization
%%%%
%%%%  Credits:
%%%%  ========
%%%%  This file is due to Piero D'Ancona and [e-mail]
%%%%  iTeXMac and TeXShop are supporting pdfsync
%%%%  Copy this file to ~/Library/texmf/tex/latex or ~/Library/TeX/texmf/tex/latex if available
%%%%  This file is distributed under the GPL and the "smart licence": please make things better if you can
%%%%  copyright 2004, [e-mail]
%
\NeedsTeXFormat{LaTeX2e}%
\ProvidesPackage{pdfsync}[2004/01/31 v0.6]%
\newif\ifPDFSYNCOK%
\newif\ifPDFSYNCStar%
\newif\ifPDFSYNCPar\PDFSYNCPartrue%
\newif\ifPDFSYNCMath\PDFSYNCMathtrue%
\newif\ifPDFSYNCHBox\PDFSYNCHBoxtrue%
\newif\ifPDFSYNCExtra\PDFSYNCExtratrue%
\newif\ifPDFSYNCOn\PDFSYNCOntrue%
\newwrite\PDFPOS%
\newcount\PDFSYNC@folio\PDFSYNC@folio=0%
\newcount\PDFSYNC@rder\PDFSYNC@rder=0%
\DeclareOption{nopar}{\PDFSYNCParfalse}%
\DeclareOption{nomath}{\PDFSYNCMathfalse}%
\DeclareOption{nocr}{\wlog{****  pdfsync.sty: Synchronizing cr no longer supported}}%
\DeclareOption{nohbox}{\PDFSYNCHBoxfalse}%
\DeclareOption{vbox}{\wlog{****  pdfsync.sty: Synchronizing vbox no longer supported}}%
\DeclareOption{novbox}{\wlog{****  pdfsync.sty: Synchronizing vbox no longer supported}}%
\DeclareOption{noextra}{\PDFSYNCExtrafalse}%
\DeclareOption{nothing}{\let\pdfsyncstart\pdfsyncstop}%
\DeclareOption{off}{\PDFSYNCOnfalse}%
\ProcessOptions\relax%
\def\PDFSYNC@shipout{%
   \afterassignment\PDFSYNC@output
   \global\setbox\@cclv= %
   }%
\def\PDFSYNC@output{%
   \ifvoid\@cclv\relax
      \aftergroup\PDFSYNC@@output
   \else
      \PDFSYNC@@output
   \fi%
   }%
\def\PDFSYNC@@output{%
	\global\advance\PDFSYNC@folio by 1%
	\immediate\write\PDFPOS{s\space\the\PDFSYNC@folio}%
	\PDFSYNC@oldshipout\box\@cclv%
   }%
\ifx\pdfsavepos\undefined%
  \wlog{****  pdfsync.sty: Synchronization is only available with pdf. Use a dvi viewer instead.}%
  \let\pdfsyncstart\relax%
  \let\pdfsyncstop\relax%
  \let\pdfsync\relax%
  \let\@PDFSYNC\relax%
\else%
 \def\pdfsyncstart{\global\PDFSYNCOKtrue}%
  \def\pdfsyncstop{\global\PDFSYNCOKfalse}%
  \def\configure@PDFSYNC{%
  \ifPDFSYNCOn%
    \wlog{****  pdfsync.sty: Synchronization is enabled.}%
    \let\PDFSYNC@oldshipout\shipout%
    \let\shipout\PDFSYNC@shipout%
    \immediate\openout\PDFPOS\jobname.pdfsync%
    \immediate\write\PDFPOS{\jobname}%            control info
    \immediate\write\PDFPOS{version 0}%            control info
    % patching LaTeX \InputIfFileExists for \include and \input
    \let\PDFSYNC@InputIfFileExists\InputIfFileExists%
    \long\def \InputIfFileExists##1##2##3{%
	  \immediate\write\PDFPOS{(##1}%
      \PDFSYNC@InputIfFileExists{##1}{##2}{##3}%
      \immediate\write\PDFPOS{)}}%
	\def\PDFSYNC@position{\the\pdflastxpos\space\the\pdflastypos}%
    \def\@PDFSYNC{%
    \relax%
    \ifPDFSYNCOK%
	\pdfsavepos%
	\immediate\write\PDFPOS{l\space\the\PDFSYNC@rder\space\the\inputlineno}%
	\ifPDFSYNCStar%
	    \edef\argument%
		    {{p*\space\the\PDFSYNC@rder\space\noexpand\PDFSYNC@position}}%
	\else%
	    \edef\argument%
		    {{p\space\the\PDFSYNC@rder\space\noexpand\PDFSYNC@position}}%
	\fi%
	\expandafter\write\expandafter\PDFPOS\argument%
	\global\advance\PDFSYNC@rder by 1%
    \fi\relax}%
    \ifPDFSYNCPar\wlog{****  pdfsync.sty: Synchronizing par}%
	    \global\let\PDFSYNC@par\@@par\gdef\@@par{\PDFSYNC@par\@PDFSYNC}\fi%
    \ifPDFSYNCMath\wlog{****  pdfsync.sty: Synchronizing math}%
	    \everymath{\@PDFSYNC\relax}\fi%
    \ifPDFSYNCHBox\wlog{****  pdfsync.sty: Synchronizing hbox}%
	    \everyhbox{\@PDFSYNC\relax}\fi%
%	    \everyhbox{\aftergroup\@PDFSYNC\relax}\fi%
    \ifPDFSYNCExtra\wlog{****  pdfsync.sty: Synchronizing extra}\PDFSYNC@Extra\fi%
    \def\pdfsync{\global\PDFSYNCStartrue\@PDFSYNC\global\PDFSYNCStarfalse}%
  \else%
    \wlog{****  pdfsync.sty: Synchronization is disabled.}%
    \let\pdfsyncstart\relax%
    \let\pdfsyncstop\relax%
    \let\pdfsync\relax%
    \let\@PDFSYNC\relax%  
  \fi%
  }%
 \def\PDFSYNC@Extra{%
%  patching the new line
  \let\PDFSYNC@newline\\\def\\{{\@PDFSYNC}\PDFSYNC@newline}%
%  patching the verse
  \global\let\PDFSYNC@verse\verse%
  \global\def\verse%
	  {\PDFSYNC@verse\let\PDFSYNC@newline\\\def\\{{\@PDFSYNC}\PDFSYNC@newline}}%
%  patching put
  \global\let\PDFSYNC@put\put%
  \global\def\put(##1,##2)##3{\PDFSYNC@put(##1,##2){##3\@PDFSYNC}}%
%  patching emph
  \global\let\PDFSYNC@emph\emph%
  \global\def\emph{{\@PDFSYNC}\PDFSYNC@emph}%
%  patching index
  \ifx\undefined\index\relax\else%
    \global\let\PDFSYNC@index\index%
    \global\def\index{{\@PDFSYNC}\PDFSYNC@index}%
  \fi%
%  patching comment
  \ifx\undefined\comment\relax\else%
    \global\let\PDFSYNC@comment\comment%
    \global\def\comment{{\@PDFSYNC}\PDFSYNC@comment}%
  \fi%
%  patching href
  \ifx\undefined\href\relax\else%
    \global\let\PDFSYNC@href\href%
    \global\def\href{{\@PDFSYNC}\PDFSYNC@href}%
  \fi%
  }%
\AtBeginDocument{%
\pdfsyncstart%
\configure@PDFSYNC%
}%
\fi%
\endinput%