diff options
Diffstat (limited to 'contrib/eqn2graph/eqn2graph.sh')
| -rw-r--r-- | contrib/eqn2graph/eqn2graph.sh | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/contrib/eqn2graph/eqn2graph.sh b/contrib/eqn2graph/eqn2graph.sh index e314dc91..efcd0187 100644 --- a/contrib/eqn2graph/eqn2graph.sh +++ b/contrib/eqn2graph/eqn2graph.sh @@ -32,7 +32,7 @@ # # Thus, we pass -U to groff(1), and everything else to convert(1). # -# $Id: eqn2graph.sh,v 1.2 2002/07/17 04:55:46 wlemb Exp $ +# $Id: eqn2graph.sh,v 1.3 2003/10/28 07:46:23 wlemb Exp $ # groff_opts="" convert_opts="" @@ -58,17 +58,34 @@ do shift done +# create temporary directory +tmp= +for d in "$GROFF_TMPDIR" "$TMPDIR" "$TMP" "$TEMP" /tmp; do + test -z "$d" && continue + + tmp=`(umask 077 && mktemp -d -q "$d/eqn2graph-XXXXXX") 2> /dev/null` \ + && test -n "$tmp" && test -d "$tmp" \ + && break + + tmp=$d/eqn2graph$$-$RANDOM + (umask 077 && mkdir $tmp) 2> /dev/null && break +done; +if test -z "$tmp"; then + echo "$0: cannot create temporary directory" >&2 + { (exit 1); exit 1; } +fi + +trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0 2 15 + # Here goes: # 1. Add .EQ/.EN. # 2. Process through eqn(1) to emit troff markup. # 3. Process through groff(1) to emit Postscript. # 4. Use convert(1) to crop the Postscript and turn it into a bitmap. -tmp=/usr/tmp/eqn2graph-$$ -trap "rm ${tmp}.*" 0 2 15 read equation -(echo ".EQ"; echo 'delim $$'; echo ".EN"; echo '$'"${equation}"'$') | \ - groff -e $groff_opts -Tps >${tmp}.ps \ - && convert -crop 0x0 $convert_opts ${tmp}.ps ${tmp}.${format} \ - && cat ${tmp}.${format} +(echo ".EQ"; echo 'delim $$'; echo ".EN"; echo '$'"$equation"'$') | \ + groff -e $groff_opts -Tps -P-pletter > $tmp/eqn2graph.ps \ + && convert -crop 0x0 $convert_opts $tmp/eqn2graph.ps $tmp/eqn2graph.$format \ + && cat $tmp/eqn2graph.$format # End |