#!/bin/bash
# Parser builder

GRAMMAR="${GRAMMAR:-"json.jj"}"
ROOT="../.."
PKG=org/openjena/atlas/json/io/parserjavacc/javacc

# --------------------------------------------------------

function grammar
{
    local FILE="$1"
    local PKG="$2"
    local CLASS="$3"
    echo "JavaCC: $1 $2 $3"

    DIR="$ROOT/src/main/java/$PKG"
    ( cd $DIR ; rm -f TokenMgrError.java ParseException.java Token.java JavaCharStream.java SimpleCharStream.java )

    echo "---- Process grammar -- $1"
    javacc -OUTPUT_DIRECTORY=$DIR -JDK_VERSION=1.5 "${FILE}"
    RC=$?

    [ "$RC" = 0 ] || return $RC

##     echo "---- Create HTML"
##     jjdoc -OUTPUT_FILE=${FILE%%.jj}.html "${FILE}"
##     echo "---- Create text form"
##     jjdoc -TEXT=true -OUTPUT_FILE=${FILE%%.jj}.txt "${FILE}"

    # Fix unnecessary imports
    echo "---- Fixing Java warnings in ${CLASS}TokenManager ..."
    F="$DIR/${CLASS}TokenManager.java"
    sed -e 's/import .*//' -e 's/MatchLoop: do/do/' \
        -e 's/int hiByte = (int)(curChar/int hiByte = (curChar/' \
	< $F > F
    mv F $F

##     echo "---- Fixing Java warnings in JavaCharStream ..."
##     F="$DIR/JavaCharStream.java"
##     if [ -e "$F" ]
## 	then
## 	sed -e 's/@Deprecated //' \
## 	    -e 's/public int getColumn/@Deprecated public int getColumn/' \
## 	    -e 's/public int getLine/@Deprecated public int getLine/' < $F > F
## 	mv F $F
##     fi

    echo "---- Fixing Java warnings in ParseException ..."
    #Override:
    #   public String getMessage()
    F="$DIR/ParseException.java"
    sed -e 's/@Override //' \
	-e 's/public String getMessage/@Override public String getMessage/' < $F > F
    mv F $F

    echo "---- Fixing Java warnings in Token ..."
    F="$DIR/Token.java"
    sed -e 's/@Override //' \
	-e 's/public String toString/@Override public String toString/' < $F > F
    mv F $F

    echo "---- Fixing Java warnings in TokenMgrError ..."
    # Override:
    #   public String getMessage()
    F="$DIR/TokenMgrError.java"
    sed -e 's/@Override //' \
	-e 's/public String getMessage/@Override public String getMessage/' < $F > F
    mv F $F

##     echo "---- Fixing Java warnings in ${CLASS} ..."
##     F="$DIR/${CLASS}.java"
##     cat $F > F
##     mv F $F
    echo "---- Done"
}

## if [ $# == 0 ]
## then
##     set -- json
##     ## echo "Usage: grammar [json]" 1>&2
##     ## exit 1
##     fi

if [ $# == 0 ]
then
    set -- json
    fi


for G in "$@"
  do
  case "$G" in
  json)
    cpp -P -C "$GRAMMAR" > parser.jj
    grammar parser.jj $PKG JSON_Parser
    [ "$RC" = 0 ] && rm -f parser.jj
    ;;
  *)    echo "**** Unknown grammar: $G" 1>&2
    ;;
    esac
done