#!/bin/sh
# ========================================================================
# ==		dotex : a simple shell script to allow "direct" 	==
# ==			transformation of a TeX/LaTeX/grLaTeX file	==
# ==			to postcript file				==
# ==		usage : dotex [-cvp] [-d flags] filename[.tex]		==
# ==			-c	: toggle output debugging messages	==
# ==			-v	: toggle view dvi after end		==
# ==			-p	: toggle print after mode		==
# ==			-h	: output help message			==
# ==			-l	: view logging info			==
# ==			-i	: interactive (allow terminal input)	==
# ==			-d flag : pass flags to dvi to ps		==
# ==			-2	: ps2up					==
# ==			-P name : printer name				==
# ==			-F fmt  : Force format fmt			==
# ==			-n	: Do compilation on the spot (no tmp)	==
# ==									==
# == $Id: dotex,v 1.12 1995/10/17 12:14:03 kd Exp kd $ ==
# ========================================================================
# ==	Copyright (C) 1993-94 By K J Dryllerakis (kd@doc.ic.ac.uk)	==
# ==	All Rights Reserved						==
# ==									==
# ==	Using or storing this program in your system means that you	==
# ==	have read and agreed to the following terms:			==
# ==									==
# ==	You may freely distribute and use this script as long as the	==
# ==	copyright message remains intact and any changes are clearly	==
# ==	mentioned in the file.						==
# ==	I accept no responsibility for the proper functioning of the	==
# ==	script which may or may not prove to do what you expect it to	==
# == 	do. I will accept all comments and bug reports but do not 	==
# ==	guarantee that they will materialise to a new script 		==
# ==	(nevertheless I will put all possible effort to do so).		==
# ==	New in version 1.1 : Accept grlatex style if a line exists	==
# ==				of the form %% TeX: grlatex		==
# ==				[regexp search ^\%\%.*TeX\:.*grlatex]   ==
# ==	New in version 1.2 : Accept the -L to force latex compilation   ==
# ==	New in version 1.3 : Added support for LaTeX2e			==	
# ==				and -P <name> option			==
# ==				no more -L but -F introduced		==
# ==	New in version 1.4 : Automatic indexing support			==
# ==	New in version 1.5 : Allow for dvi previewing of the file	==
# ==	New in version 1.6 : Fixed bug of included ISO files		==
# ==	New in version 1.7 : greektex support was added 		==
# ==	New in version 1.8 : compilation on the spot	 		==
# ========================================================================
#
# ========================================================================
# ==		Executables - 	Changes these values to suit 		==
# ==				your system				==
# ========================================================================
#
TEX=tex
LATEX=latex
LATEX2E=latex2e
GRLATEX=grlatex
GREEKTEX=greektex
NFSSLATEX=nfsslatex
BIBTEX=bibtex
SLITEX=slitex
DVITOPS=dvips
MAKEINDEX="makeindex"
TEXTPREVIEW=less
PRINTCMND=lpr
DVIPREVIEWER=ghostview
TWOUPFILTER="psnup -2 -q"
DVITOPSFLAGS=""
PTSTUPIDTEX=NO
GREP="/usr/bin/grep"
SGREP="/usr/bin/grep -s" # -s for silent SunOS grep -q for gnu
GREEK2ASCII="/usr/local/tex/bin/ascii2grtex"
XDVI=xdvi
#
# ========================================================================
# ==		Startup Options Changes these values to suit 		==
# ==				your requirements (yes/no)		==
# ========================================================================
#
CHECK=no
DOPREVIEW=no
DOPRINT=no
SEELOG=no
TWOUP=no
ONLYDVI=no
DOTMP=yes
#
#	End of User Configurable Section
#
#	Startup values do NOT change
#
# ========================================================================
# ==			END OF USER CONFIGURABLE PART			==
# ========================================================================
#
VERSION="$Id: dotex,v 1.12 1995/10/17 12:14:03 kd Exp kd $"
SEPERATEBIB=no
INDEXNEEDED=no
NEEDBIBTEX=""
EXEC=$TEX
ENCODED=no
FORCEFORMAT=no
FFORMAT=""
INSTREAM="/dev/null"
USEBIB=yes # By default use bibtex if necessary
FORCEBIB=no # By default do not run bibtex if unnecessary
#
# ========================================================================
# ==			Useful Routines					==
# ========================================================================
#



usage() {
	WEARE=`basename $0`
	echo "DoTeX Version $VERSION" 1>&2
	echo "(C) 1993-95 K J Dryllerakis -- All Rights Reserved" 1>&2
	echo "Usage: $WEARE [-hcvpi2l] [-P printer] [-d flags] [-F fmt] filename[.tex]" 1>&2
	echo "	where: " 1>&2
	echo "		-h 	: help screen" 1>&2
	echo "		-c 	: toggle output debugging messages " 1>&2
	echo "		-v 	: toggle view ps output after TeXing mode" 1>&2
	echo "		-p 	: toggle print ps output after TeXing " 1>&2
	echo "		-l 	: toggle log file viewing " 1>&2
	echo "		-i 	: allow terminal interaction " 1>&2
	echo "		-d flags: pass flags to the dvi to ps converter " 1>&2
	echo "		-2	: print two pages in one " 1>&2
	echo "		-F fmt  : force compilation with fmt " 1>&2
	echo "		-P name : name of printer for output " 1>&2
	echo "		-n      : run TeX on current directory " 1>&2
	echo "		-B[b]	: suppress [force] use of bibtex " 1>&2
	echo " Recognised Input: tex, latex, latex2e, grlatex, greektex, slitex, nfsslatex" 1>&2
	exit 1
}
nosuchfile() {
	echo "$FNAME : No such file" 1>&2
	exit 1
}
typerror(){
	echo "" 1>&2
	echo "Error in $1 Stage" 1>&2
	cleanup
	exit 1
}
typerrorwithlog(){
	echo "" 1>&2
	echo "Error in $1 Stage" 1>&2
	cat $OURTMP/$FNAME.log | awk '/^\!/, /^End of file on the terminal/' | $TEXTPREVIEW 
	cleanup
	exit 1
}
cleanup(){
	if [ "$DOTMP" = "yes" ] ; then
		rm -rf $OURTMP
	fi
}
checkrerun(){
	if $GREP -i 'rerun' $FNAME.log ; then
		return 0
	else
		return 1
	fi
}
isencoded(){
	if $SGREP -i '8859\-7' $FNAME.tex ; then
		return 0
	else
		return 1
	fi
}
indexneeded(){
	if $SGREP -i '\\makeindex' $FNAME.tex ; then
		return 0
	else
		return 1
	fi
}
findincludedfiles(){
$GREP '\\\include[^ ^\{]*{[^ ]*}' | \
$GREP -v '^.*%.*\\\include' | \
sed -n -e 's/\\\include[^ ]*{\([^ ]*\)}/\1/p' | \
while read a
do
	bb=`echo $a | sed 's/\.tex//'`
	echo -n "$bb "
done
}
# Find if option $1 is specified in file $2
latexoption(){
 $SGREP "^[^%]*\\\documentstyle\[[^,]*,*$1[],]" $2
}
latexstyle(){
 $SGREP "^[^%]*\\\documentstyle[^ ]*{$1}" $2
}

nfsslatexstyle(){
	latexoption Times $1 ||
	latexoption Palatino $1 ||
	latexoption palatino $1 ||
	latexoption times $1 
}
	
copyright(){
#	echo "dotex v$VERSION  Copyright (C)1993-94 K J Dryllerakis. All Rights Reserved"
	echo -n ""
}
#
# ========================================================================
# ==			Reference Pass macro				==
# ========================================================================
#
# This should be a while loop
RunAgainIfNeeded(){
if $SGREP -i 'rerun' $FNAME.log ; then
	if [ "$CHECK" = "yes" ] ; then  echo -n "Reruning..." ; fi
	if $EXEC $FNAME.tex <$INSTREAM >$SEEFILE ; then
		if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
	else
		typerrorwithlog "Reruning $EXEC"
	fi
elif [ -f $OURTMP/$FNAME.toc ] ; then
	if [ "$CHECK" = "yes" ] ; then  echo -n "TableOfC..." ; fi
	if $EXEC $FNAME.tex <$INSTREAM >$SEEFILE ; then
		if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
	else
		typerrorwithlog "Building TOC in $EXEC"
	fi
fi
}
#
#
# ========================================================================
# ==			Indexing Pass macro				==
# ========================================================================
#
indexingStage(){
if [ "$NEEDINDEX" = "yes" ] ; then
	if [ "$CHECK" = "yes" ] ; then  echo -n "Indexing..." ; fi
	if $MAKEINDEX $FNAME <$INSTREAM >$SEEFILE; then  
		if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
	else
		typerror "Executing $MAKEINDEX"
	fi
	if [ "$CHECK" = "yes" ] ; then  echo -n "Reruning..." ; fi
	if $EXEC $FNAME.tex <$INSTREAM >$SEEFILE ; then
		if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
	else
		typerrorwithlog "Reruning $EXEC"
	fi
fi
}
#
# ========================================================================
# ==			Startup Message					==
# ========================================================================
#
copyright
#
# ========================================================================
# ==			Parse arguments					==
# ========================================================================
#
if [ $# -eq 0 ] ; then 
	usage
fi
while getopts cvnBbp2hlid:P:F: x
do
	case $x in
	b) 	FORCEBIB=yes;;
	B) 	USEBIB=no;;
	c) 	if [ "x$CHECK" = "xno" ] ; then
			CHECK=yes
		else
			CHECK=no
		fi;;
	n) 	if [ "x$DOTMP" = "xno" ] ; then
			DOTMP=yes
		else
			DOTMP=no
		fi;;
	v) 	if [ "x$DOPREVIEW" = "xno" ] ; then
			DOPREVIEW=yes
		else
			DOPREVIEW=no
		fi;;
	p) 	if [ "x$DOPRINT" = "xno" ] ; then
			DOPRINT=yes
		else
			DOPRINT=no
		fi;;
	F) 	if [ "x$FORCEFORMAT" = "xno" ] ; then
			FORCEFORMAT=yes
			FFORMAT="$OPTARG"
		else
			FORCEFORMAT=no
		fi ;;
	l) 	if [ "x$SEELOG" = "xno" ] ; then
			SEELOG=yes
		else
			SEELOG=no
		fi;;
	i) 	INSTREAM="/dev/tty" 
		SEELOG=yes ;;
	P) 	PRINTER="$OPTARG"; export PRINTER ;;
	d) 	DVITOPSOPTS="$DVITOPSOPTS $OPTARG" ;;
	2) 	if [ "x$TWOUP" = "xno" ] ; then
			TWOUP=yes
		else
			TWOUP=no
		fi;;
	h) 	usage;;
	\?)	usage;;
	esac
done
shift `expr $OPTIND - 1`
#
# ========================================================================
# ==			Locate the file to use				==
# ========================================================================
#
if [ $# -eq 0 ] ; then 
	usage
fi
FNAME=$1
if [ ! -f $FNAME.tex ] ; then
	TT=`echo $FNAME | sed 's/\.tex//'`
	if [ ! -f $TT.tex ] ; then
		nosuchfile
	else
		FNAME=$TT
	fi
fi
if [ "$CHECK" = "yes" ] ; then  echo "File $FNAME.tex located" ; fi
#	Set the output file
if [ "x$SEELOG" = "xyes" ] ; then 
	SEEFILE="/dev/tty"
else
	SEEFILE="/dev/null"
fi
#
# ========================================================================
# ==			Check encoding of file				==
# ========================================================================
#
if isencoded ; then
	ENCODED=yes
	if [ "$CHECK" = "yes" ] ; then  echo "File $FNAME.tex is greek encoded" ; fi
else
	ENCODED=no
fi
#
# ========================================================================
# ==			Verify TeX Format File				==
# ========================================================================
#
if $SGREP  '^[^%]*\\documentclass' $FNAME.tex ; then
	EXEC=$LATEX2E
elif $SGREP '^[^%]*\\documentstyle' $FNAME.tex ; then
	if latexstyle gr.* $FNAME.tex \
		|| latexoption greek $FNAME.tex \
		|| $SGREP '^\%\%.*TeX\:.*grlatex' $FNAME.tex ; then
		EXEC=$GRLATEX
	elif latexstyle slides $FNAME.tex ; then
		EXEC=$SLITEX
	elif nfsslatexstyle $FNAME.tex ; then
		EXEC=$NFSSLATEX
	else
		EXEC=$LATEX
	fi
elif $SGREP '^\\input greektex' $FNAME.tex \
	|| $SGREP -i '^%.*Use: GreekTeX' $FNAME.tex ; then
	EXEC=$GREEKTEX
else
	EXEC=$TEX
fi
if [ "$FORCEFORMAT" = "yes" ] ; then
	EXEC=$FFORMAT
	if [ "$CHECK" = "yes" ] ; then  echo "Format accepted as $EXEC" ; fi
else
	if [ "$CHECK" = "yes" ] ; then  echo "Format Verified as $EXEC" ; fi
fi
#
# ========================================================================
# ==			Check For BibTeX calls				==
# ========================================================================
#
if $SGREP '^[^%]*\\bibliography{' $FNAME.tex ; then
	NEEDBIB=$BIBTEX
else
	NEEDBIB=no
fi
if [ "$USEBIB" = "no" ] ; then
	if [ "$CHECK" = "yes" -a $NEEDBIB = $BIBTEX ] ; then  
		echo "Need for Bibtex suppresed" ; 
	fi
	NEEDBIB=no
else
	if [ "$CHECK" = "yes" -a $NEEDBIB = $BIBTEX ] ; then  
		echo "Need for Bibtex verified" ; 
	fi
fi
if latexoption chapterbib $FNAME.tex || latexstyle phd $FNAME.tex \
	|| latexoption specialbib $FNAME.tex ;then
	SEPERATEBIB=yes
	NEEDBIB=$BIBTEX
else
	SEPERATEBIB=no
fi
if [ "$FORCEBIB" = "yes" -a $NEEDBIB != $BIBTEX ] ; then
	NEEDBIB=$BIBTEX
	SEPERATEBIB=no
	if [ "$CHECK" = "yes" ] ; then  
		echo "Need for Bibtex accepted" 
	fi
else
	if [ "$CHECK" = "yes" -a "$SEPERATEBIB" = "yes" ] ; then  echo "Need for Seperate Bibtex verified" ; fi
fi
#
# ========================================================================
# ==			Check For index need 				==
# ========================================================================
#
if indexneeded ; then
	NEEDINDEX=yes
else
	NEEDINDEX=no
fi
if [ "$CHECK" = "yes" -a "$NEEDINDEX" = "yes" ] ; then  echo "Need for indexing verified" ; fi
#
# ========================================================================
# ==			Create tmp dir and start work			==
# ========================================================================
#
HERE=`pwd`
if [ "$DOTMP" = "yes" ] ; then
	OURTMP=/tmp/typeset.$$
	if [ "$PTSTUPIDTEX" = "YES" ]; then
		MYTEXINPUTS=".:$HERE:$MYTEXINPUTS"; export MYTEXINPUTS
		BIBINPUTS=".:$HERE:$BIBINPUTS" ; export BIBINPUTS
	else
		TEXINPUTS=".:$HERE:$TEXINPUTS"; export TEXINPUTS
		BIBINPUTS=".:$HERE:$BIBINPUTS" ; export BIBINPUTS
	fi
	mkdir $OURTMP
	cd $OURTMP
else
	OURTMP=`pwd`
fi
trap 'cleanup;exit' 1 2 3 6 9
#
# ========================================================================
# ==			Change to ascii 				==
# ========================================================================
#
if [ "$ENCODED" = "yes" ] ; then
	$GREEK2ASCII <$HERE/$FNAME.tex >$FNAME.tex
	ALLIN=`cat $FNAME.tex | findincludedfiles `
	for ff in $ALLIN
	do
		$GREEK2ASCII <$HERE/$ff.tex >$ff.tex
	done
	if [ "$CHECK" = "yes" ] ; then  echo  "File un-encoded" ; fi
fi

#
# ========================================================================
# ==			Create stupid index file first			==
# ========================================================================
#
#	this is needed to keep include command in latex happy even when
#	file is not there!
#
if [ "$NEEDINDEX" = "yes" ] ; then
	cat /dev/null >$FNAME.ind
fi
#
# ========================================================================
# ==			First Pass -- TeXing				==
# ========================================================================
#
if [ "$CHECK" = "yes" ] ; then  echo -n "First Pass..." ; fi
if $EXEC $FNAME.tex <$INSTREAM >$SEEFILE ; then  
if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
else
	typerrorwithlog "Executing first $EXEC"
fi
#
# ========================================================================
# ==			BibTeX Pass & Second TeXing Pass		==
# ========================================================================
#
if [ "$NEEDBIB" != "no" ] ; then

	STAGE=1
	if [ "$SEPERATEBIB" = "no" ] ; then
		if [ "$CHECK" = "yes" ] ; then  echo -n "Bibtex..."; fi
		if $BIBTEX $FNAME <$INSTREAM >$SEEFILE; then  
			if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
			STAGE=2
		else
			typerror "Executing $BIBTEX"
		fi
	else
		if [ "$CHECK" = "yes" ] ; then  echo -n "Bibtex..."; fi
		FILEOOO=`cat $HERE/$FNAME.tex | findincludedfiles`
		if [ "$CHECK" = "yes" ] ; then  
			echo Seperate Bibliography Files: $FILEOOO
		fi
		for ff in $FILEOOO
		do
			if $BIBTEX $ff  <$INSTREAM >$SEEFILE; then
				STAGE=2
			else
				 typerrorwithlog "Executing Seperate Bibtex"
			fi
		done
	fi
	if [ "$STAGE" = "2" ]; then
		if [ "$CHECK" = "yes" ] ; then  echo -n "Second Pass..." ; fi
		if $EXEC $FNAME.tex <$INSTREAM >$SEEFILE ; then
			if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
		else
			 typerrorwithlog "Executing second $EXEC"
		fi
	fi
fi

#
# if the log file indicates so do another pass
#
RunAgainIfNeeded
#
# if we need indexing do it
#
indexingStage
# 
# if we still have cross-references or TOC re-run
#
RunAgainIfNeeded
#

if [ "$ONLYDVI" = "yes" ] ; then
	if [ "x$DOPREVIEW" = "xyes" ] ; then
		$XDVI $OURTMP/$FNAME.dvi
		if [ "$CHECK" = "yes" ] ; then  echo  "Cleaning up" ; fi
	fi
	if  [ "x$DOPRINT" != "xyes" -a "$DOTMP" = "yes" ] ; then
		mv $OURTMP/$FNAME.dvi $HERE	
	fi
	cleanup
	exit
fi

#
# ========================================================================
# ==			Convert to PS File				==
# ========================================================================
#
cd $HERE
if [ "$CHECK" = "yes" ] ; then  echo -n "Converting to ps..." ; fi
if $DVITOPS $OURTMP/$FNAME -q -o $OURTMP/$FNAME.ps $DVITOPSOPTS <$INSTREAM >$SEEFILE ; then 
	if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
else
	typerror "Converting to PS"
fi
if [ "$TWOUP" = "yes" ] ; then
	if [ "$CHECK" = "yes" ] ; then  echo -n "Converting to 2up..." ; fi
	mv $OURTMP/$FNAME.ps $OURTMP/$FNAME.ps.1
	if $TWOUPFILTER $OURTMP/$FNAME.ps.1 >$OURTMP/$FNAME.ps ; then
		if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
		rm $OURTMP/$FNAME.ps.1
	else
		mv $OURTMP/$FNAME.ps.1 $OURTMP/$FNAME.ps
		typerror "Converting to 2up"
	fi
fi
#
# ========================================================================
# ==			What to Do with the PS file			==
# ========================================================================
#
if [ "x$DOPREVIEW" = "xyes" ] ; then
	$DVIPREVIEWER $OURTMP/$FNAME.ps
else
	if [ "x$DOPRINT" = "xyes" ] ; then
		if [ "$CHECK" = "yes" ] ; then  
			echo -n "Sending PS to printer..." 
		fi
		if $PRINTCMND $OURTMP/$FNAME.ps ; then
			if [ "$CHECK" = "yes" ] ; then  echo "done" ; fi
		else
			 typerror "running $PRINTCMND"
		fi
	else
		if [ "$DOTMP" = "yes" ] ; then
			mv $OURTMP/$FNAME.ps .
		fi
	fi
fi
#
# ========================================================================
# ==			Finished - Clean Up and Exit			==
# ========================================================================
#
if [ "$CHECK" = "yes" ] ; then  echo  "Cleaning up" ; fi
cleanup
# ========================================================================
# ==			END - OF - FILE					==
# ========================================================================