<% @TinyPG Namespace="Nebula" Language="C#" %>

[Skip] WHITESPACE   -> @"[ ]";
[Skip] COMMENTLINE  -> @"//[^\n]*\n?";
[Skip] COMMENTBLOCK -> @"/\*[^*]*\*+(?:[^/*][^*]*\*+)*/";

       //Listed in order of precedence.
	EOF          -> @"^$";
       NEWLINE      -> @"\n";
       STRING       -> @"@?\""(\""\""|[^\""])*\""";
       INT          -> @"[0-9]+";
       FIXED        -> @"[0-9]*\.[0-9]*";
       BOOL         -> @"true|false";
       HEX          -> @"0x[0-9a-fA-F]{1,8}";
       TYPE         -> @"abilcmd|actor|actorscope|aifilter|bank|bool|byte|camerainfo|char|color|doodad|fixed|handle|int|marker|order|playergroup|point|region|revealer|sound|soundlink|string|text|timer|transmissionsource|trigger|unit|unitfilter|unitgroup|unitref|void|wave|waveinfo|wavetarget";
       PARENOPEN    -> @"\(";
       PARENCLOSE   -> @"\)";
       BRACKETOPEN  -> @"\{";
       BRACKETCLOSE -> @"\}";
       COMMA        -> @",";
       ASSIGN       -> @"=";
       IF           -> @"if";
       LOGIC        -> @"==|!=|&&|\|\||>|<";
       LABEL        -> @"[a-zA-Z_][a-zA-Z0-9_]*";

//========================================================================

Start          -> (NEWLINE | Identifier)* EOF;

    Identifier     -> TYPE LABEL (Assignment | Function)? NEWLINE;

        Assignment     -> ASSIGN Arg;
            Arg            -> STRING | INT | FIXED | BOOL | HEX | (LABEL ArgParams?);
                ArgParams      -> PARENOPEN (Arg (COMMA Arg)*)? PARENCLOSE;

        Function       -> ParamList FuncBody;
            ParamList      -> PARENOPEN (Param (COMMA Param)*)? PARENCLOSE;
                Param          -> TYPE LABEL;
            FuncBody   -> BRACKETOPEN ((NEWLINE (FuncElement? NEWLINE)*) | FuncElement) BRACKETCLOSE;
                FuncElement    -> FuncIdentifier | FuncCall | IfStatement;
                    FuncIdentifier -> TYPE LABEL Assignment?;
                    FuncCall       -> LABEL ArgParams;
                    IfStatement    -> IF PARENOPEN Expr PARENCLOSE FuncBody;
                        Expr           ->  (Arg | SubExpr) (LOGIC (Arg | SubExpr))*;
                            SubExpr        -> PARENOPEN (Arg | SubExpr) (LOGIC (Arg | SubExpr))* PARENCLOSE;

//========================================================================