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#! /bin/sh
# Copyright (C) 2002 Sergey Poznyakoff
#
# This is a snarfer for guile version 1.6
# 
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
# 
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#  
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software Foundation,
#  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 

OUTFILE=/dev/tty
DOCFILE=0
BASEDIR=`dirname $0`
test -n "${CPP+set}" || CPP="gcc -E"
test -n "${AWK+set}" || AWK=awk
temp=/tmp/snarf.$$
trap "rm -f $temp" 0 1 2 15

# process aruments
while [ $# -gt 0 ];
do
    case $1 in
    -o) OUTFILE=$2; shift 2;;
    -d) DOCFILE=1; shift;;
    *)  break;;
    esac
done    

INFILE=$1; shift

cpp_exit=1

snarf_x() {
    echo "/* source: $INFILE */" ;
    echo "/* cpp arguments: $@ */" ;
    $CPP -DSCM_MAGIC_SNARF_INITS -DSCM_MAGIC_SNARFER "$@" > ${temp}
    cpp_exit=$?
    grep "^ *\^ *\^" ${temp} | sed -e "s/^ *\^ *\^//" -e "s/\^\ *:\ *\^.*/;/"
}

snarf_doc() {
    $CPP -DSCM_MAGIC_SNARF_DOCS "$@" > ${temp}
    cpp_exit=$?
    $AWK '
NF<2 {next}
state == 0 && /\^\^ {/ { state = 1; print; next }
state == 0 && /\^\^/ { print }
state == 1 && /\^\^ }/ { state = 0; print; next }
state == 1 { print }
state == 0 { next }' $temp |\
      tr -d '\n' | tr '^' '\n' |\
      awk -f $BASEDIR/guile-doc-snarf.awk > $OUTFILE
}

case "$DOCFILE" in
    0) snarf_x $INFILE "$@" > $OUTFILE;;
    1) snarf_doc $INFILE "$@" > $OUTFILE;;
esac

if [ $cpp_exit -ne 0 ]; then
    [ "$OUTFILE" != "/dev/tty" ] && rm $OUTFILE
fi
exit $cpp_exit

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