#!/bin/bash
# Parser builder

GRAMMAR="${GRAMMAR:-master.jj}"

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

function grammar
{
    FILE="$1"
    PKG="$2"
    CLASS="$3"

##     NAME="$(echo $N | tr '[:lower:]' '[:upper:]')"
##     DIR1="$(echo $N | tr '[:upper:]' '[:lower:]')"
    
    DIR="../src/com/hp/hpl/jena/sparql/lang/$PKG"

    (cd "$DIR" ; rm -f TokenMgrError.java ParseException.java Token.java JavaCharStream.java )

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

    [ "$RC" = 0 ] || return

##     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 ${NAME}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

##     # Java5+ fixups
##     echo "---- Fixing Java warnings in JavaCharStream ..."
##     # Deprecated:
##     #   public int getColumn()
##     #   public int getLine()
##     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"
    sed -e 's/for (java.util.Iterator/for (java.util.Iterator<int[]>/' \
	-e 's/(int\[\])//' < $F > F
    mv F $F

    echo "---- Done"
}

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

function rdqlGrammar
{
    # This one uses the old RDQL expression code via JJTree
    (
	echo "---- Process RDQL grammar"
	DIR="../src/com/hp/hpl/jena/sparql/lang/rdql"
	rm -f rdql-arq.jj
	jjtree "-OUTPUT_DIRECTORY=$DIR" rdql-arq.jjt
	RC=$?
	## Move the .jj file back here
	mv $DIR/rdql-arq.jj .
	#echo "RC: $RC"
	if [ "$RC" = "0" ]
	    then
	    javacc -OUTPUT_DIRECTORY=$DIR rdql-arq.jj
	    rm rdql-arq.jj
	fi
    )
}

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

if [ $# == 0 ]
then
    set -- sparql10 sparql11 arq
    ## echo "Usage: grammar [arq|sparql|rdql]" 1>&2
    ## exit 1
    fi

for G in "$@"
do
  case "$G" in
      sparql10|sparql|sparql_10.jj)
          # The parser that is exactly the working group grammar.
          dos2unix < "$GRAMMAR" | cpp -P -C -DSPARQL -DSPARQL_10 | unix2dos > sparql_10.jj
          grammar sparql_10.jj sparql_10 SPARQLParser10
          ;;

      sparql11|sparql_11.jj)
          # The parser that is exactly the working group grammar.
          dos2unix < "$GRAMMAR" | cpp -P -C -DSPARQL -DSPARQL_11 | unix2dos > sparql_11.jj
          grammar sparql_11.jj sparql_11 SPARQLParser11
          ;;

      arq|arq.jj)
          dos2unix < "$GRAMMAR" | cpp -P -C -DARQ | unix2dos > arq.jj
          grammar arq.jj arq ARQParser
          ;;

      rdql) echo "Tread carefully" 1>&2
          rdqlGrammar
          ;;

      all)  grammar sparql
            grammar arq
	    # rdqlGrammar
	    ;;
      *)    echo "**** Unknown grammar: $G" 1>&2
            ;;
    esac
done