# to generate ${base}.pdftex_t
# Thereafter, you need only '\input{${base}.pdftex_t}' in your latex document.
+# These are the external programs we use
+FIG2DEV=fig2dev
+# If using "legacy_xfig" only
+EPSTOPDF=epstopdf
+
+find_exe() {
+ test $# -eq 1 || exit 1
+
+ type $1 > /dev/null || {
+ echo "Unable to find \"$1\". Please install."
+ exit 1
+ }
+}
+
# modern_xfig() and legacy_xfig() are the functions that do all the work.
# Modern versions of xfig can output the image without "special" text as
# a PDF file ${base}.pdf and place the text in a LaTeX file
# ${base}.pdftex_t for typesetting by pdflatex itself.
modern_xfig() {
- echo modern_xfig
-
# Can we find fig2dev?
- type fig2dev > /dev/null || exit 1
+ find_exe ${FIG2DEV}
input=$1
pdftex_t=$2
pdftex=$3.pdf
- fig2dev -Lpdftex ${input} ${pdftex}
- fig2dev -Lpdftex_t -p${outbase} ${input} ${pdftex_t}
+ ${FIG2DEV} -Lpdftex -p1 ${input} ${pdftex}
+ ${FIG2DEV} -Lpdftex_t -p${outbase} ${input} ${pdftex_t}
exit 0;
}
# Older versions of xfig cannot do this, so we emulate the behaviour using
# pstex and pstex_t output.
legacy_xfig() {
- echo legacy_xfig
-
- # Can we find fig2dev, eps2eos or gs?
- type fig2dev > /dev/null || exit 1
- type eps2eps > /dev/null || exit 1
- type gs > /dev/null || exit 1
+ # Can we find fig2dev and epstopdf?
+ find_exe ${FIG2DEV}
+ find_exe ${EPSTOPDF}
input=$1
pdftex_t=$2
- png=$3.png
+ pdf=$3.pdf
pstex=$3.pstex
- fig2dev -Lpstex ${input} ${pstex}
- fig2dev -Lpstex_t -p${outbase} ${input} ${pdftex_t}
+ ${FIG2DEV} -Lpstex ${input} ${pstex}
+ ${FIG2DEV} -Lpstex_t -p${outbase} ${input} ${pdftex_t}
# Convert the ${pstex} EPS file (free of "special" text) to PDF format
- # using gs.
-
- # gs is extremely fussy about the EPS files it converts, so ensure it is
- # "clean" first.
- clean=${pstex}.$$
- eps2eps ${pstex} ${clean}
+ # using epstopdf.
+ ${EPSTOPDF} --outfile=${pdf} ${pstex}
rm -f ${pstex}
- # Extract the width and height of the image using gs' bbox device.
- # Ie, take output that includes line "%%BoundingBox: 0 0 <width> <height>"
- # and rewrite it as "-g<width>x<height>"
- geometry=`gs -q -dSAFER -dNOPAUSE -dBATCH -sDEVICE=bbox ${clean} 2>&1 | \
- sed '/^%%BoundingBox/! d' | cut -d' ' -f4,5 | \
- sed 's/^\([0-9]\{1,\}\) \([0-9]\{1,\}\)$/-g\1x\2/'`
-
- # Generate a PNG file using the -g option to ensure the size is the same
- # as the original.
- # If we're using a version of gs that does not have a bbox device, then
- # ${geometry} = "", so there are no unwanted side effects.
- gs -q -dSAFER -dBATCH -dNOPAUSE ${geometry} -sDEVICE=png16m \
- -sOutputFile=${png} ${clean}
- rm -f ${clean}
-
exit 0;
}
outbase=`echo ${output} | sed 's/[.][^.]*$//'`
# Ascertain whether fig2dev is "modern enough".
-# Here "modern" means "fig2dev Version 3.2 Patchlevel 4"
-version_info=`fig2dev -h | sed '/^fig2dev/! d'`
-# If no line begins "fig2dev" then default to legacy_xfig
-test "x${version_info}" = "x" && {
- legacy_xfig ${input} ${output} ${outbase}
-}
-
-version=`echo ${version_info} | cut -d' ' -f3`
-patchlevel=`echo ${version_info} | cut -d' ' -f5`
-# If we cannot extract the version of patchlevel info
-# then default to legacy_xfig
-test "x${version}" = "x" -o "x${patchlevel}" = "x" && {
- legacy_xfig ${input} ${output} ${outbase}
-}
-echo ${version} ${patchlevel} | grep '[0-9]!' -o && {
- legacy_xfig ${input} ${output} ${outbase}
-}
-
-# So, is it an old version?
-test ${version} != "3.2" -o ${patchlevel} -lt 4 && {
- legacy_xfig ${input} ${output} ${outbase}
-}
-# I guess not ;-)
+# If it is, then the help info will mention "pdftex_t" as one of the
+# available outputs.
+FUNCTION=modern_xfig
+${FIG2DEV} -h | grep 'pdftex_t' > /dev/null || FUNCTION=legacy_xfig
-# Commented out for now to test legacy_xfig...
-#modern_xfig ${input} ${output} ${outbase}
-legacy_xfig ${input} ${output} ${outbase}
+${FUNCTION} ${input} ${output} ${outbase}
# The end