lexer grammar BeetlLexer; If:'if'; For:'for'; Else:'else'; While:'while'; Switch:'switch'; Select:'select'; Return:'return'; Break:'break'; Continue:'continue'; Var:'var'; Directive:'DIRECTIVE'|'directive'; Case:'case'; Default:'default'; Try:'try'; Catch:'catch'; LEFT_BRACE:'{'; RIGHT_BRACE:'}'; LEFT_PAR:'('; RIGHT_PAR:')'; LEFT_SQBR:'['; RIGHT_SQBR:']'; INCREASE:'++'; DECREASE:'--'; VIRTUAL:'.~'; ADD:'+'; MIN:'-'; MUlTIP:'*'; DIV:'/'; MOD:'%'; EQUAL:'=='; NOT_EQUAL:'!='; ASSIN:'='; LARGE:'>'; LESS:'<'; NOT:'!'; AND:'&&'; OR:'||'; QUESTOIN:'?'; AT:'@'; NULL:'null'; TRUE:'true'; FALSE:'false'; END:';'; COMMA:','; COLON:':'; PERIOD:'.'; FOR_IN:'in'; LEFT_TOKEN:'<<'; RIGHT_TOKEN:'>>'; LEFT_TEXT_TOKEN :'<$'; // LEXER HexLiteral : '0' ('x'|'X') HexDigit+ IntegerTypeSuffix? ; DecimalLiteral : ('0' | '1'..' 9' '0'..' 9'*) IntegerTypeSuffix? ; OctalLiteral : '0' ('0'..' 7')+ IntegerTypeSuffix? ; fragment HexDigit : ('0'..' 9'|'a'..' f'|'A'..'F') ; fragment IntegerTypeSuffix : ('l'|'L') ; FloatingPointLiteral : ('0'..'9')+ '.' ('0'..'9')* Exponent? FloatTypeSuffix? | '.' ('0'..'9')+ Exponent? FloatTypeSuffix? | ('0'..'9')+ Exponent FloatTypeSuffix? | ('0'..'9')+ FloatTypeSuffix | ('0x' | '0X') (HexDigit )* ('.' (HexDigit)*)? ( 'p' | 'P' ) ( '+' | '-' )? ( '0' .. '9' )+ FloatTypeSuffix? ; fragment Exponent : ('e'|'E') ('+'|'-')? ('0'..'9')+ ; fragment FloatTypeSuffix : ('f'|'F'|'d'|'D') ; CharacterLiteral : '\'' ( EscapeSequence | ~('\''|'\\') ) '\'' ; StringLiteral : '"' ( EscapeSequence | ~('\\'|'"') )* '"' ; fragment EscapeSequence : '\\' ('b'|'t'|'n'|'f'|'r'|'\"'|'\''|'\\') | UnicodeEscape | OctalEscape ; fragment OctalEscape : '\\' ('0'..'3') ('0'..'7') ('0'..'7') | '\\' ('0'..'7') ('0'..'7') | '\\' ('0'..'7') ; fragment UnicodeEscape : '\\' 'u' HexDigit HexDigit HexDigit HexDigit ; Identifier : Letter (Letter|JavaIDDigit)* ; /**I found this char range in JavaCC's grammar, but Letter and Digit overlap. Still works, but... */ fragment Letter : '\u0024' | '\u0041'..' \u005a' | '\u005f' | '\u0061'..' \u007a' | '\u00c0'..' \u00d6' | '\u00d8'..' \u00f6' | '\u00f8'..' \u00ff' | '\u0100'..' \u1fff' | '\u3040'..' \u318f' | '\u3300'..' \u337f' | '\u3400'..' \u3d2d' | '\u4e00'..' \u9fff' | '\uf900'..' \ufaff' ; fragment JavaIDDigit : '\u0030'..' \u0039' | '\u0660'..' \u0669' | '\u06f0'..' \u06f9' | '\u0966'..' \u096f' | '\u09e6'..' \u09ef' | '\u0a66'..' \u0a6f' | '\u0ae6'..' \u0aef' | '\u0b66'..' \u0b6f' | '\u0be7'..' \u0bef' | '\u0c66'..' \u0c6f' | '\u0ce6'..' \u0cef' | '\u0d66'..' \u0d6f' | '\u0e50'..' \u0e59' | '\u0ed0'..' \u0ed9' | '\u1040'..' \u1049' ; COMMENT_OPEN : '/*' ->mode(ISLAND),channel(HIDDEN) ; mode ISLAND; PARAS:'@' Identifier ':' Identifier ('.' Identifier)* ; WS1 : [ \r\t\u000C\n]+ -> channel(HIDDEN); COMMENT_END: '*/' -> mode(DEFAULT_MODE),channel(HIDDEN) ; WS : [ \r\t\u000C\n]+ -> channel(HIDDEN) ; LINE_COMMENT : '//' ~[\r\n]* '\r'? ' \n' -> channel(HIDDEN) ; 
