#! /bin/sh

# Validate gperf's operation on a given input file.

# Usage: validate languages input.gperf [more gperf options]

# Uses the environment variables GPERF, CC, CFLAGS, CXX, CXXFLAGS.

# Supposes gcc and g++.

# Exit on error

set -e

verbose () {

  echo "$@"

  "$@"

}

languages=$1

shift

# On old systems, it's worth trying gcc -traditional.

# On glibc-2.1 systems, gcc -traditional doesn't work any more.

use_traditional=false

for lang in `echo $languages | sed -e 's/,/ /g'`; do

  case "$lang" in

    KR-C )

      echo "${GPERF} -I -L KR-C $@ > valitest.c"

      ${GPERF} -I -L KR-C "$@" > valitest.c

      grep -n ' const ' valitest.c /dev/null && exit 1

      if test $use_traditional = true; then

        verbose ${CC} ${CFLAGS} ${CPPFLAGS} -traditional valitest.c -o valitest

        ./valitest

      fi

      verbose ${CC} ${CFLAGS} ${CPPFLAGS} -ansi -pedantic valitest.c -o valitest

      ./valitest

      ;;

    C )

      echo "${GPERF} -I -L C $@ > valitest.c"

      ${GPERF} -I -L C "$@" > valitest.c

      if test $use_traditional = true; then

        verbose ${CC} ${CFLAGS} ${CPPFLAGS} -traditional -Dconst= valitest.c -o valitest

        ./valitest

      fi

      verbose ${CC} ${CFLAGS} ${CPPFLAGS} -ansi -pedantic -pedantic-errors valitest.c -o valitest

      ./valitest

      ;;

    ANSI-C )

      echo "${GPERF} -I -L ANSI-C $@ > valitest.c"

      ${GPERF} -I -L ANSI-C "$@" > valitest.c

      verbose ${CC} ${CFLAGS} ${CPPFLAGS} -ansi -pedantic -pedantic-errors valitest.c -o valitest

      ./valitest

      verbose ${CXX} ${CXXFLAGS} ${CPPFLAGS} -ansi -pedantic -pedantic-errors valitest.c -o valitest

      ./valitest

      ;;

    "C++" )

      echo "${GPERF} -I -L C++ $@ > valitest.c"

      ${GPERF} -I -L C++ "$@" > valitest.c

      verbose ${CXX} ${CXXFLAGS} ${CPPFLAGS} -ansi -pedantic -pedantic-errors -DCPLUSPLUS_TEST valitest.c -o valitest

      ./valitest

      ;;

  esac

done

exit 0