#!/bin/sh
# parse a preprocessed file, and verify it
# can parse it and leave no ambiguities
               
if [ "$1" = "" ]; then
  echo "usage: $0 [-tr flag] file.i [file2.i [...]]"
  exit 0
fi

extra=""
if [ "$1" = "-tr" ]; then
  extra="-tr $2"
  shift
  shift
fi

if [ "$KEEP_GOING" = "2" ]; then
  # arrange to send status reports (only) to stderr
  exec 3>&2
  exec 2>&1
fi

while [ "$1" != "" ]; do
  fname="$1"
  shift

  echo "--------- $fname --------"

  case $fname in
    *.gz)
      inputFname=tmp.i
      echo "gunzip -c $fname >$inputFname"
      gunzip -c "$fname" >"$inputFname" || exit
      ;;

    *)
      inputFname="$fname"
      ;;
  esac

  # try to parse it
  echo "./ccparse $extra $inputFname"
  if ./ccparse -tr nohashline,permissive $extra "$inputFname"; then
    # ok
    if [ "$KEEP_GOING" = "2" ]; then
      echo -n . >&3
    fi
  else
    code=$?
    echo "$fname: had errors"
    if [ "$KEEP_GOING" = "" ]; then
      exit $code
    elif [ "$KEEP_GOING" = "2" ]; then
      echo -n e >&3
    fi
  fi
done

if [ "$KEEP_GOING" = "2" ]; then
  # final newline
  echo "" >&3
fi

exit 0