griddy.html

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<TITLE>BNF for griddy.jj</TITLE>
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<H1 ALIGN=CENTER>BNF for griddy.jj</H1>
<H2 ALIGN=CENTER>TOKENS</H2>
<TABLE>
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/* Whitespace characters */</PRE>
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&lt;DEFAULT&gt; SKIP : {
&lt;WHITE_SPACE: &lt;TAB&gt; | &lt;NEWLINE&gt; | &lt;SP&gt;&gt;
| &lt;#SP: " "&gt;
| &lt;#TAB: "\t"&gt;
}

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/* Comments */</PRE>
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&lt;DEFAULT&gt; SPECIAL : {
&lt;SINGLE_LINE_COMMENT: "#" (~["\n","\r"])* &lt;NEWLINE&gt;&gt;
| &lt;NEWLINE: "\n" | "\r" | "\r\n"&gt;
}

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/* Reserved keywords */</PRE>
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&lt;DEFAULT&gt; TOKEN : {
&lt;IF: "if"&gt;
| &lt;ELSE: "else"&gt;
| &lt;FROM: "from"&gt;
| &lt;IN: "in"&gt;
| &lt;FOR: "for"&gt;
| &lt;END: "end"&gt;
| &lt;OUTPUT: "output"&gt;
| &lt;INPUT: "input"&gt;
| &lt;GAME_MAIN: "GAME"&gt;
| &lt;FUNC_DECL: "fun"&gt;
| &lt;RETURN: "return"&gt;
| &lt;BOARD_DECL: "board"&gt;
| &lt;PIECE_DECL: "piece"&gt;
| &lt;PLACE: "place"&gt;
| &lt;TILE: "tile"&gt;
| &lt;IS_EMPTY: "empty?"&gt;
}

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/* Punctuators */</PRE>
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&lt;DEFAULT&gt; TOKEN : {
&lt;EQ: "=="&gt;
| &lt;NEQ: "!="&gt;
| &lt;GEQ: "&gt;="&gt;
| &lt;LEQ: "&lt;="&gt;
| &lt;NOT: "!"&gt;
| &lt;LT: "&lt;"&gt;
| &lt;GT: "&gt;"&gt;
| &lt;AND: "and"&gt;
| &lt;OR: "or"&gt;
| &lt;PLUS: "+"&gt;
| &lt;MINUS: "-"&gt;
| &lt;MULT: "*"&gt;
| &lt;DIV: "/"&gt;
| &lt;MOD: "%"&gt;
| &lt;ASSIGN: "="&gt;
| &lt;COMMA: ","&gt;
| &lt;SEMICOLON: ";"&gt;
| &lt;COLON: ":"&gt;
| &lt;LPAREN: "("&gt;
| &lt;RPAREN: ")"&gt;
| &lt;LBRACE: "{"&gt;
| &lt;RBRACE: "}"&gt;
| &lt;LBRACKET: "["&gt;
| &lt;RBRACKET: "]"&gt;
}

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/* Literals (terminals) */</PRE>
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&lt;DEFAULT&gt; TOKEN : {
&lt;NUM: ["0"-"9"] | ["1"-"9"] (["0"-"9"])+&gt;
| &lt;BOOL: "true" | "false"&gt;
| &lt;NEG_NUM: "-" &lt;NUM&gt;&gt;
| &lt;STRING: "\"" (~["\"","\r","\n"])* "\""&gt;
}

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/* Identifier (terminals) */</PRE>
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&lt;DEFAULT&gt; TOKEN : {
&lt;IDENT: (&lt;LETTER&gt; | "@") (&lt;IDENT_PART&gt;)*&gt;
| &lt;#IDENT_PART: (&lt;LETTER&gt; | "_")+&gt;
| &lt;#LETTER: ["a"-"z","A"-"Z"]&gt;
}

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</TABLE>
<H2 ALIGN=CENTER>NON-TERMINALS</H2>
<TABLE>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod1">Start</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod2">setupPhase</A> <A HREF="#prod3">gamePhase</A> &lt;EOF&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod2">setupPhase</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod4">setupStmt</A> )*</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod4">setupStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod5">functionDeclaration</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod6">pieceDeclaration</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod7">assignment</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod8">boardDeclaration</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod3">gamePhase</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;GAME_MAIN&gt; &lt;LPAREN&gt; <A HREF="#prod9">expression</A> &lt;RPAREN&gt; ( <A HREF="#prod10">gameStmt</A> )*</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod10">gameStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod11">functionCall</A> &lt;SEMICOLON&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod12">outputStmt</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod7">assignment</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod13">placeStmt</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod14">inputStmt</A> &lt;SEMICOLON&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod15">conditionalStmt</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod13">placeStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;PLACE&gt; <A HREF="#prod16">identifier</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod17">position</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;LPAREN&gt; ( <A HREF="#prod18">number</A> | <A HREF="#prod16">identifier</A> ) &lt;COMMA&gt; ( <A HREF="#prod18">number</A> | <A HREF="#prod16">identifier</A> ) &lt;RPAREN&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod8">boardDeclaration</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;BOARD_DECL&gt; <A HREF="#prod17">position</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod19">positionList</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod17">position</A> ( &lt;COMMA&gt; <A HREF="#prod17">position</A> )*</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod6">pieceDeclaration</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;PIECE_DECL&gt; <A HREF="#prod16">identifier</A> ( <A HREF="#prod16">identifier</A> &lt;COLON&gt; ( <A HREF="#prod18">number</A> | <A HREF="#prod20">stringLiteral</A> | <A HREF="#prod19">positionList</A> | <A HREF="#prod21">bool</A> ) )* &lt;END&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod7">assignment</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod16">identifier</A> &lt;ASSIGN&gt; <A HREF="#prod9">expression</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod9">expression</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod22">boolExpr</A> ( <A HREF="#prod23">logicalOperator</A> <A HREF="#prod22">boolExpr</A> )+ | <A HREF="#prod22">boolExpr</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod24">addExpr</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod25">multiplicativeExpr</A> ( <A HREF="#prod26">additiveOperator</A> <A HREF="#prod25">multiplicativeExpr</A> )+ | <A HREF="#prod25">multiplicativeExpr</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod22">boolExpr</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod24">addExpr</A> ( <A HREF="#prod27">booleanOperator</A> <A HREF="#prod24">addExpr</A> )+ | <A HREF="#prod24">addExpr</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod26">additiveOperator</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;PLUS&gt; | &lt;MINUS&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod23">logicalOperator</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;OR&gt; | &lt;AND&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod25">multiplicativeExpr</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod28">unary</A> ( <A HREF="#prod29">multiplicativeOperator</A> <A HREF="#prod28">unary</A> )+ | <A HREF="#prod28">unary</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod29">multiplicativeOperator</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;MULT&gt; | &lt;DIV&gt; | &lt;MOD&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod28">unary</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;LPAREN&gt; <A HREF="#prod9">expression</A> &lt;RPAREN&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod30">isTileEmpty</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod31">tileAccess</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod32">primary</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;NOT&gt; <A HREF="#prod28">unary</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod32">primary</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod11">functionCall</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod33">getPiece</A> | <A HREF="#prod16">identifier</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod18">number</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod21">bool</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>|</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod20">stringLiteral</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod27">booleanOperator</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;EQ&gt; | &lt;NEQ&gt; | &lt;LEQ&gt; | &lt;GEQ&gt; | &lt;LT&gt; | &lt;GT&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod16">identifier</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;IDENT&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod18">number</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;NUM&gt; | &lt;NEG_NUM&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod21">bool</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;BOOL&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod20">stringLiteral</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;STRING&gt;</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod12">outputStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;OUTPUT&gt; <A HREF="#prod9">expression</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod14">inputStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;INPUT&gt; <A HREF="#prod9">expression</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod15">conditionalStmt</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;IF&gt; <A HREF="#prod9">expression</A> ( <A HREF="#prod10">gameStmt</A> )+ ( &lt;END&gt; | <A HREF="#prod34">elseBlock</A> )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod34">elseBlock</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;ELSE&gt; <A HREF="#prod15">conditionalStmt</A> | &lt;ELSE&gt; ( <A HREF="#prod10">gameStmt</A> )+ &lt;END&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod5">functionDeclaration</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;FUNC_DECL&gt; <A HREF="#prod16">identifier</A> <A HREF="#prod35">argumentList</A> <A HREF="#prod36">functionBody</A> &lt;RETURN&gt; <A HREF="#prod9">expression</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod35">argumentList</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( &lt;LPAREN&gt; &lt;RPAREN&gt; | &lt;LPAREN&gt; <A HREF="#prod16">identifier</A> ( &lt;COMMA&gt; <A HREF="#prod16">identifier</A> )* &lt;RPAREN&gt; )</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod36">functionBody</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>( <A HREF="#prod10">gameStmt</A> )*</TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod11">functionCall</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod16">identifier</A> <A HREF="#prod35">argumentList</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod31">tileAccess</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;TILE&gt; <A HREF="#prod17">position</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod33">getPiece</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE><A HREF="#prod16">identifier</A> &lt;FROM&gt; <A HREF="#prod16">identifier</A></TD>
</TR>
<TR>
<TD ALIGN=RIGHT VALIGN=BASELINE><A NAME="prod30">isTileEmpty</A></TD>
<TD ALIGN=CENTER VALIGN=BASELINE>::=</TD>
<TD ALIGN=LEFT VALIGN=BASELINE>&lt;IS_EMPTY&gt; <A HREF="#prod17">position</A></TD>
</TR>
</TABLE>
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