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#! /bin/sh
# dtxtags -- getenerate a TAGS file for the DTX files
version="1.1 Time-stamp: <pdc 1995-04-06>"
# The grep line produces LINE:BYTE:PATTERN
# the sed converts this to LINE:BYTE:PATTERN:TAG
tmp=${TMP-/tmp}/mktags$$
trap 'rm -f $tmp*' 0
me=`basename $0`
outfile=TAGS
touch $tmp
while test $# -gt 0; do
case $1 in
--o*=*)
outfile=`expr $1 : '.*=\(.*\)$'` ;;
-o|--o*)
outfile=$2; shift ;;
-o*)
outfile=`expr $1 : '-.\(.*\)$'` ;;
-h|--h*)
cat <<@EOF
$me: construct an etags-style tags file from DTX files.
USAGE:
$me [ --output=OUTFILE ] [ INFILE... ]
$me --help | --version
@EOF
exit 0 ;;
-V|--v*)
echo This is $me $version
exit 0 ;;
-*)
echo >&2 $me: $1: not understood, try $me --help
exit 2 ;;
*)
i=$1
echo >&2 $1:
egrep -nb '^[ ]\|[ ]*\\([a-z]*def|new)' <$1 |
sed '
s/\([ ]*|\\[a-z]*\\[A-Za-z]*\).*$/\1/
t finish
s/\([ ]*|\\[a-z]*\\.\).*$/\1/
t finish
s/\([ ]*|\\[a-z]*[^a-z]\).*$/\1/
: finish
s/\([0-9]*\):\([0-9]*\):\(.*\)/\3\1,\2/
' > $tmp.a
wc $tmp.a
echo '' >> $tmp
echo $1,`wc -c <$tmp.a` >>$tmp
cat $tmp.a >> $tmp
;;
esac
shift
done
mv 2>/dev/null $outfile $outfile.bak &&
echo >&2 backup written to $outfile.bak
mv $tmp $outfile
exit 0
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