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#!/bin/sh

# Created by Gerben Wierda, May 2001
# Rewritten by Gerben Wierda, January 2002
# Modified by Joachim Kock, May 2003
# Modified by Gerben Wierda, April 2007

# COPYRIGHT Gerben Wierda 2001--2004
# This file is free software. You are free to use this file in any way you like
# However, if you change it you should note in this file that you did and who
# you are, you also need to change the version string if you do. That way
# I will not get support questions for software that is not entirely mine.

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
# EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# $Id: altpdftex,v 2.18 2004/11/15 20:36:11 gerben Exp $

# This script assumes that there is a config.pdf somewhere that sets
# the bitmap mode to something large but realistic (real mode) so that
# unavailable pfb fonts will be included as bitmaps.

# Version 1.0:	added the string above for identification purposes
# Version 1.0a:	Cosmetic change: do not display dir of argv[0] all the time
#		Added calledas variable to hold command basename
# Version 1.1:	Use calledas instead of $0 which means the sed command
#		for determining format below also works when there is no dir
#		(run from dir where altpdftex resides, not very likely...)
# Version 1.2:	Force the use of tex binaries from the same directory as
#		this script
# Version 1.3:  Added --echo-version option, placed argument check after
#		switch, inside while to prevent subscript out of range error
#		Added --tex-path to override directory where this script
#		resides. Added --gs-path to override a new default gs
#		directory /usr/local/bin. Also, force gs directory at the
#		start of the path to repair for broken installations of
#		TeX, gs and such
# Version 1.4:	Moved path changes to just before calling gs so that only
#		ps2pdf is affected
# Version 1.5:	Removed some path-related redundancy from GS calling
# Version 1.5a:	Missing ${extradviopts} from echo
#		Added version to --help output
#		Added wolfram.map
# Version 1.6:	Fixed bug: --dviopts did not work because it did set
#		the wrong variable
#		Changed dviopts to dvipsopts (better name)
# Version 1.7:	Added --distiller and --distiller-filter option
#		Changed --gs-path to --distiller-path
#		Changed distiller semantics
#		Fixed bug --tex-path flag needed trailing '/'
#		Some extra quoting to be more robust for whitespace
#		in names, also internally
# Version 1.8:	Added pstill and u-psbuild info to help
# Version 1.9:	Removed textrace bbold font (textrace is broken)
# Version 1.10:	Added amstex support
#		Simplified different format support
# Version 1.11:	Do not source ~/.{t}cshrc, use the environment 'as is'
#		Version 1.11 says it is version 1.10!
# Version 1.12: Added textrace bold font (textrace 0.48 is ok)
# Version 1.13:	Changed success message at the end
#		Echo version on by default
#		Debug option
# Version 1.13b:Date report on version was very out of date, removed

# Version 2.0:	Rewritten in /bin/sh because (t)csh does not handle signals
#		very well...
#		This version works, but you need to send the SIGTERM to
#		the process group (the negative PID) to get it to work
# Version 2.1:	Small bug fixes
# Version 2.2:	Fixed bug where argument without extension was interpreted
#		as dvi file.
#		Removed dependencies on smart sh versions
# Version 2.3:	Removed map file knowledge (needs to be outside this script)
#		beyond the standard map files
# Version 2.4:	Added support for omega and lambda (use odvips)
# Version 2.5:	Changed maxpk and maxpfb implementation to recent updmap
# Version 2.6:	Use ps2pdf13 as the default distiller
# Version 2.7:	Changed help
# Version 2.8:	Checked into CVS.
#		Added handling of outdir for TeX
# Version 2.9:	Added auto-outdir flag
# Version 2.10:	Changed --outdir behaviour to mimick TEXMFOUTPUT,
#		removed --auto-outdir
# Version 2.11:	Fixed typo
# Version 2.12:	RCS changes, from now on, the version number is the RCS number
#		These notes here will become a ChangeLog.
# 2003/05/20	Joachim's modification: write first to a pdf file in tmp, 
#		and only upon completion copy the file to its final
#		destination.  This is done in order to minimise the time where
#		the pdf file in current directory is in an unstable state,
#		because a PDF viewer might be tracking the file, and 
#		if it finds the pdf file in an intermediate state it will
#		display a blank page until the new version is ready.
# 2003/05/21	Joachim's modification used /bin/cp. Gerben made it truly
#		atomic by using /bin/cp in combination with /bin/mv
# 2003/11/23	Added supportfor passing flasg to tex at the request of
#		Dick Koch.
# 2004/09/05	Bugfix: make it work better with directories with whitespace
#		in their name
# 2004/11/15	New calling mode: simpdftex format foo.tex
#		e.g.:
#			simpdftex latex foo.tex
#		In the future, the old modes (altpdflatex and friends) through
#		symlinks will disappear from my distribution, though they will
#		still work.
# 2007/05/07	Added dvipdfm support with compatibility with the patched version
#		that is available on the net (simpdftex_dpmx)
#		Changed version string to date-based string
# 2007/08/09	Protected echo command against broken builtin versions by running
#		/bin/echo explicitly. There may exist /bin/echo implementations
#		that do not support -n and this script will have to be changed
#		before it works on such a system

# FEATURE: it seems -u +foo.map -u -foo.map does not work. So --extradvipsopts
# cannot be used to remove a map from the standard list

# BUG: Handling of file name extensions is not completely equialent to TeX
# i.e. foo.bar.bla gets you foo.bar.pdf not foo.bar.bla.pdf
# Hint: Give all extensions explicitely on the command line

version='20070809'
calledas=`basename "$0"`
if [ "${calledas}" = "simpdftex" ]
then
	argwithoutlead=`/bin/echo -n "$1"|sed 's/^--//'`
	if [ "$1" != "" -a "$1" = "${argwithoutlead}" ]
	then
		formatname="$1"
		shift
		calledas="altpdf${formatname}"
	fi
fi
argvbackup="$*"

dviprogram="dvips" # Might be dvips, dvipdfm or dvipdfmx

# maxpkdvipsopts: use only pfb's for real PS fonts, bitmaps are default for the others
maxpkdvipsopts="-Ppk"
# maxpfbdvipsopts: use as many pfb's as possible
maxpfbdvipsopts="-Poutline"
opt_dvipsopts=""

# Defaults:
# altpdftex --default is the default setting, it also works
# when there is no config.pdf file
extradvipsoptions=""
dvipsoptions="$maxpfbdvipsopts"
outputpostfix=".maxpfb"
simplename="yes"
keeppsfile="no"
echoversion="yes"
texpath=`dirname "$0"`
# Default distiller is ps2pdf from /usr/local/bin in no filter mode
# as the direct call to a filtering gs does not work yet for some reason
#distillerpath=""
#distillerprog="/usr/local/bin/gs -dCompatibility=1.3 -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=- -c save pop"
#distillerfilter="yes"
distillerpath="/usr/local/bin"
distillerprog="ps2pdf13"
distillerfilter="no"
unset outdir
debug="no"
dvipdfmoptions=""

usage()
{
	cat <<_eof_help
This is simpdftex, $version

Usage: simpdftex formatname [--mode modestring]
	[--dvipsopts dvipsoptstring] [--extradvipsopts dvipsoptstring] [--pdf]
	[--default] [--maxpk] [--maxpfb] [--extendedname] [--no-echo-version]
	[--tex-path dir] [--keep-psfile] [--distiller-path dir] [--debug]
	[--distiller prog] [--distiller-filter prog] [--help]
	[--outdir dir] [--extratexopts texoptsstring]
	[--dvipdfmopts dvipdfmoptstring] tex-or-dvi-file

simpdftex is a way to do pdf{e}{la}tex without having pdf{e}{la}tex. It needs a
working TeX environment and one of three ways to turn  DVI file into PDF:
	- dvips + a distiller like ghostscript
	- dvipdfm
	- dvipdfmx
Since pdf{e}{la}tex cannot handle insertion of .eps graphics, simpdftex gives an
alternative when using dvips mode. The output for both systems is comparable.

simpdftex compiles the file with {LA}TeX, processes the DVI file with dvips into
PostScript and uses gs to produce pdf (with ps2pdf). Or it uses dvipdfm or
dvipdfmx to turn the DVI file into PDF. There is finegrained control over the
resulting filename and the options with which dvips produces the PostScript
intermediary file.

Dvips will call Metafont to produce bitmaps or include PostScript .pfb files
depending on the flags. See below.

The default setting is normal name, maximal use of pfb's, just like pdf{la}tex,
in other words, "pdftex file.tex" and "altpdftex file.tex" both produce an
output file file.pdf. For pdftex, output options are controlled by pdftex.cfg,
for altpdftext by config.ps (unless --pdf is given).

Arguments:
	tex-or-dvi-file
		If a .dvi file is given, skip the TeX process. Otherwise, TeX
		the input file, dvips the resulting dvi file and ps2pdf the
		resulting ps file
	--mode
		Tell simpdftex how to go from DVI to PDF. There are three modes:
		- dvips
		- dvipdfm
		- dvipdfmx
	--dpx
		Compatibility flag with simpdftex_dpmx. Equal to --mode dvipdfmx
	--dpm
		Compatibility flag with simpdftex_dpmx. Equal to --mode dvipdfm
	--help
		Display this message and exit
	--no-echo-version
		Do not echo location and version of this script. Does not exit
		so can be used tochange info to the output of a real run
	--debug
		Add some debug output
	--extendedname
		Depending on the mode, adds intermediary extensions to the
		output filename. If the mode is --pdf, .pdfmode is added. If
		the mode is --maxpk, ,maxpk is added and if the mode is
		--maxpfb, .maxpfb is added. Example:
			tex-or-dvi-file-basename.maxpfb.pdf
	--maxpk
		Use Metafont bitmaps (pk files) when possible. Only real
		PostScript fonts (like Times Roman) are included as
		PostScript fonts. All other fonts are included as bitmaps
		for the default printer resolution. This options produces
		optimal results for the chosen printer.
		For file contents (not name) equivalent to:
		--dvipsopts "-Ppk"
		Not yet functional for the other modes.
	--maxpfb
		Use PostScript pfb files whenever possible. This produces
		optimal results for the screen.
		For file contents (not name) equivalent to:
		--dvipsopts "-Poutline"
		If any font is included as TeX pk bitmap, it is rendered
		at the default resolution.
		Not yet functional for the other modes.
	--pdf
		Select .pdfmode extension for the output file name if
		--extendedname has been set. Use printer definition
		config.pdf. For file contents (not name) equivalent to
		--dvipsopts "-Ppdf"
		Note that the default config.pdf assumes resolution 8000
		for bitmaps and bitmap generation fails at this resolution
		because there exists no known mode for that resolution.
	--default
		Select no extension for the output file name, even if
		--extendedfilename has been set. Use standard printer
		definition config.ps. For file contents (not name) equivalent
		to:
		--dvipsopts "" --noextendedname
	--dvipsopts
		Give arbitrary arguments to dvips, e.g.
		--dvipsopts "-M"
		Sets extension for --extendedfilename to .custom. --dvipsopts
		overrides other flags that set dvipsopts.
	--extratexopts
		Give extra arbitrary arguments to tex, e.g.
		--extratexopts "--interaction=nonstopmode"
		Sets extra options for the tex command that is used.
	--extradvipsopts
		Give extra arbitrary arguments to dvips, e.g.
		--extradvipsopts "-M"
		Sets extra options for dvips and does not set extension
		or override other options. Options will be added to the end
		of the options for dvips
	--keep-psfile
		After running dvips, copy the ps file over to the directory
		where the tex file is, possibly overwriting a ps file
		that is there. Use with caution, a ps file could be input
		as well.
	--tex-path
		Give path of TeX binaries, use directory of this script
		otherwise
	--distiller prog
		Use a distiller different from ps2pdf which is the default.
		Argument must be an executable or executable script that
		gets called iwth two arguments: input file (PS) and output
		file (PDF). E.g.:
		--distiller=/usr/local/alternate/bin/ps2pdf
		--distiller=pstill
		Using this flag sets the distiller filter mode to off
		This flag only makes sense in dvips mode
	--distiller-filter prog
		Use a distiller executable or executable script which is
		called with the PS input as standard input and which writes
		the PDF output to standard output. E.g.:
		--distiller-filter=u-psbuild
		This flag only makes sense in dvips mode
	--distiller-path
		Give path needed by the distiller binary. This path is added
		to the begin of you PATH environment before the distiller is
		run. The reason is that for instance ps2pdf uses the path to
		find gs and sets the path to something with /sw/bin at the
		beginning.  Thus, installing gs from fink would make
		/usr/local/bin/ps2pdf find another gs than intended. By giving
		an empty path, the path is not changed before the distiller
		program is run. The default is empty.
		This flag only makes sense in dvips mode
	--dvipdfmopts
		Give arbitrary arguments to dvipdfm or dvipdfmx, e.g.
		--dvipdfmopts "-c"
		Sets extension for --extendedfilename to .custom. --dvipdfmopts
		overrides other flags that set dvipdfmopts.
	--outdir dir
		Write files here *if* our current directory is unwritable. This
		mimicks the TEXMFOUTPUT environment variable of TeX, but
		differently. The current dir becomes the value of --outdir and
		the directory where the old current dir is added to TEXINPUTS.
		This is more robust for reading and locating files.
		You can also set TEXMFOUTPUT instead, but with a disadvantage:
		you will be running TeXin the current dir. And you will not be
		able to read files in the outdir unless you also adapt
		TEXINPUTS.

	The defaults for the distiller are
		Path addition: "${distillerpath}"
		Filter mode: "${distillerfilter}"
		Program: "${distillerprog}"

	Later flags override settings of earlier flags.
_eof_help
}

while test $# -gt 0
do
	case $1 in
	--help)
		usage
		exit 0;;
	--dvipsopts)
		shift
		outputpostfix=".custom"
		dvipsoptions="$1"
		;;
	--dvipdfmopts)
		outputpostfix=".custom"
		shift
		dvipdfmoptions="$1"
		;;
        --dvipdfopts)	# Compatibility with simpdftex_dpmx
		shift
		dvipdfmoptions="$1"
		;;
	--extradvipsopts)
		shift
		extradvipsoptions="$1"
		;;
	--extratexopts)
		shift
		extratexoptions="$1"
		;;
	--tex-path)
		shift
		texpath="$1"
		;;
	--pdf)
		outputpostfix=".pdfmode"
		dvipsoptions="-P pdf"
		;;
	--default)
		outputpostfix=""
		dvipsoptions=""
		# Use the default print option in config.ps
		;;
	--maxpk)
		outputpostfix=".maxpk"
		dvipsoptions="$maxpkdvipsopts"
		;;
	--maxpfb)
		outputpostfix=".maxpbfb"
		dvipsoptions="$maxpfbdvipsopts"
		;;
	--extendedname)
		simplename="no"
		;;
	--keep-psfile)
		keeppsfile="yes"
		;;
	--debug)
		debug="yes"
		;;
	--distiller-path)
		shift
		distillerpath="$1"
		;;
	--distiller)
		shift
		distillerprog="$1"
		distillerfilter="no"
		;;
	--mode)
		shift
		if [ "$1" = "dvips" -o "$1" = "dvipdfm" -o "$1" = "dvipdfmx" ]
		then
			dviprogram="$1"
		else
			/bin/echo "Unknown mode $1"
			exit 1
		fi
		;;
	--outdir)
		shift
		export TEXINPUTS=`pwd`:`kpsewhich --expand-var '$TEXINPUTS'`
		export TEXMFOUTPUT="$1"
		outdir="$1/"
		outdirset="yes"
		cd "$1"
		;;
	--distiller-filter)
		shift
		distillerprog="$1"
		distillerfilter="yes"
		;;
	--no-echo-version)
		echoversion="no"
		;;
        --dpx)	# Compatibility with simpdftex_dpmx
                dviprogram="dvipdfmx"
                ;;
        --dpm)	# Compatibility with simpdftex_dpmx
                dviprogram="dvipdfm"
                ;;
	--*)
		/bin/echo "Unknown option $1"
		exit 1;;
	"")
		;;
	*)
		break;;
	esac
	shift
done

if [ "${echoversion}" = "yes" -a "${debug}" = "no" ]
then
	/bin/echo "### This is $0, Version ${version}"
fi

if [ "${debug}" = "yes" ]
then
	/bin/echo "##### This is $0, Version ${version}"
	/bin/echo "##### Arguments: ${argvbackup}"
fi

run_dvipdfm()
{
	/bin/echo "### ${texpath}/${dviprogram} ${dvipdfmoptions} -o ${pdffile} ${dvifile}"
	"${texpath}/${dviprogram}" ${dvipdfmoptions} -o "${pdffile}" "${dvifile}" || \
		{ /bin/echo "### FAILED to generate ${pdffile} (${status})"; \
		  exit 1; }
}

run_dvips()
{
	/bin/echo "### ${texpath}/${dviprogram} -R ${dvipsoptions} ${extradvipsoptions} -o ${psfile} ${dvifile}"
	"${texpath}/${dviprogram}" -R ${dvipsoptions} ${extradvipsoptions} -o "${psfile}" "${dvifile}" || \
		{ /bin/echo "### FAILED to generate ${psfile} (${status})"; \
		  exit 1; }

	if [ "${keeppsfile}" = "yes" ]; then
		/bin/echo "### Saving intermediary ps file ${psfile} as ${savedpsfile}"
		/bin/cp "${psfile}" "${savedpsfile}" || \
			/bin/echo "### FAILED to save ${psfile} (${status})"
	fi

	if [ "${distillerpath}" != "" ]; then
		PATH="${distillerpath}:${PATH}";export PATH
		if [ "${debug}" = "yes" ]; then
			/bin/echo "##### PATH set to ${PATH}"
		fi
	fi

	if [ "${distillerfilter}" = "yes" ]; then
		/bin/echo "### ${distillerprog} <${psfile} >${pdffile}"
		"${distillerprog}" <"${psfile}" >"${pdffile}" || \
			{ /bin/echo "### FAILED to generate ${pdffile} (${status})"
			  exit 1; }
	else
		/bin/echo "### ${distillerprog} ${psfile} ${pdffile}"
		"${distillerprog}" "${psfile}" "${pdffile}" || \
			{ /bin/echo "### FAILED to generate ${pdffile} (${status})"
			  exit 1; }
	fi
}

cleanup()
{
	if [ "${tmpdir}" != "" -a "${debug}" = "no" ]
	then
		rm -rf "${tmpdir}"
	fi
}

terminated()
{
	cleanup
	exit 1;
}

trap 'terminated' 15

main()
{
	if [ "${file}" = "" ]
	then
		/bin/echo "simpdftex Empty argument: tex-or-dvi-file-name"
		exit 1
	fi

	# Argument handling

	if [ "${simplename}" = "yes" ]
	then
		outputpostfix=""
	fi

	startwithdvi="no"
	basename=`basename "${file}"`
	nosuffixbasename=`/bin/echo -n ${basename}|sed 's/\.[^.]*$//'`
	nodvisuffixbasename=`/bin/echo -n ${basename}|sed 's/\.[dD][vV][iI]$//'`
	if [ "${nodvisuffixbasename}" = "${nosuffixbasename}" -a \
		"${basename}" != "${nosuffixbasename}" ]
	then
		startwithdvi="yes"
	fi

	kpsefilename=`kpsewhich "${file}"`
	slashdirname=`dirname "${kpsefilename}"`/

	if [ ! -w "." ]
	then
		if [ "${TEXMFOUTPUT}" != "" ]
		then
			outdir="${TEXMFOUTPUT}/"
			outdirset="yes"
			if [ "${autoinput}" = "yes" ]
			then
				export TEXINPUTS=${TEXMFOUTPUT}:`kpsewhich --expand-var '$TEXINPUTS'`

			fi
		else
			/bin/echo "### Cannot write in current directory and no redirect found. Bailing out..."
			exit 1
		fi
	fi

	# Assume the command is called altpdf* where the rest is the actual tex
	# program to be run
	texprogram=`/bin/echo ${calledas}|sed 's/altpdf//'`
	if [ "${texprogram}" = "omega" -o "${texprogram}" = "lambda" ]
	then
		dvips="odvips"
	else
		dvips="dvips"
	fi

	# Handle temp dir (cleanup is called on signal)
	tmpext=$$-`/bin/date +"%s"`
	tmpdir="/tmp/altpdf${texprogram}.${tmpext}"
	# Force removal of possible existing tmpdir
	cleanup
	# Make new version
	mkdir "${tmpdir}"

	if [ "${startwithdvi}" = "yes" ]
	then
		dvifile="${file}"
	else
		texfile="${file}"
		dvifile="${outdir}${nosuffixbasename}.dvi"
	fi

	psfile="${tmpdir}/${nosuffixbasename}${outputpostfix}.ps"
	savedpsfile="${outdir}${nosuffixbasename}.ps"
	pdffile="${tmpdir}/${nosuffixbasename}${outputpostfix}.pdf"
	savedpdffile="${outdir}${nosuffixbasename}${outputpostfix}.pdf"

	if [ "${debug}" = "yes" ]
	then
		/bin/echo "##### TeX file: $texfile"
		/bin/echo "##### DVI file: $dvifile"
		if [ "${dviprogram}" = "dvips" ]
		then
			/bin/echo "##### PS file: $psfile"
			/bin/echo "##### Saved PS file: $savedpsfile"
		fi
		/bin/echo "##### Created PDF file: $pdffile"
		/bin/echo "##### Final PDF file: $savedpdffile"
		/bin/echo "##### Environment:"
		env | sed 's/^/##### /g'
	fi

	if [ "${startwithdvi}" = "yes" ]; then
		/bin/echo "### Skipping ${texprogram} ${texfile} [dvi->pdf only]"
	else
		/bin/echo "### ${texpath}/${texprogram} ${texfile}"
		"${texpath}/${texprogram}" ${extratexoptions} "${texfile}" || \
			/bin/echo "### WARNING: TeX returned non zero exit status ${status}"
	fi

	case "${dviprogram}" in
	"dvips")
		run_dvips;;
	"dvipdfm")
		run_dvipdfm;;
	"dvipdfmx")
		run_dvipdfm;;
	*)
		/bin/echo "### ERROR: wrong dvipdf mode ${dviprogram}"
	esac

	/bin/echo "### Copying/moving pdf file ${pdffile} to ${savedpdffile}"
	/bin/cp "${pdffile}" "${savedpdffile}.${tmpext}" || \
		/bin/echo "### FAILED to copy ${pdffile} (${status})"
	/bin/rm -f "${savedpdffile}"
	/bin/mv "${savedpdffile}.${tmpext}" "${savedpdffile}" || \
		/bin/echo "### FAILED to rename ${savedpdffile}.${tmpext} (${status})"

	if [ "${startwithdvi}" = "yes" ]; then
		if [ "${keeppsfile}" = "yes" ]; then
			/bin/echo "### Succesfully generated ${savedpdffile} and ${savedpsfile}"
		else
			/bin/echo "### Succesfully generated ${savedpdffile}"
		fi
	else
		if [ "${keeppsfile}" = "yes" ]; then
			/bin/echo "### Succesfully generated ${dvifile}, ${savedpdffile} and ${savedpsfile}"
		else
			/bin/echo "### Succesfully generated ${dvifile} and ${savedpdffile}"
		fi
	fi

	cleanup
}

for file in "$@"
do
	main
done