source: trunk/m4/bison_ylwrap.sh @ 12

#!/bin/sh
# ylwrap script specially crafted for Bison

input="$1"; shift

while true; do
        case "$1" in
                "")  exit 1;;
                --)  shift; break;;
                *)   shift;;
        esac
done

prog="$1"; shift; args=($@)
if [ ${prog} != "bison" ]; then
        cat >&2 <<EOF
 * ERROR: Bison was not found at configuration time while some sources are
 * build by it.  Either install Bison <http://www.gnu.org/software/bison/>
 * or download tarball with generated sources included (than you will
 * not be able to modify .y files).
EOF
        exit 1
fi

real_args=()
for i in ${args[@]}; do
        case "$i" in
                -y)  ;;
                --yacc)  ;;
                *)  real_args=(${real_args[@]} "$i") ;;
        esac
done

echo "${prog} --output=`basename ${input} .y`.c ${real_args[@]} ${input}"
${prog} --output=`basename ${input} .y`.c ${real_args[@]} ${input}