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assignment : ID ASSIGNEQUAL^ constant SEMICOLON! |
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constant : signedNumber |
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constant : intConst |
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| floatConst |
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| ID |
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| StringLiteral |
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atomstatement : assignment |
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| POSITION^ LPAREN! signedNumberTuple RPAREN! SEMICOLON! |
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| ORIENTATION^ LPAREN! signedNumberTuple RPAREN! SEMICOLON! |
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| POSITION^ LPAREN! doubleNumberTuple RPAREN! SEMICOLON! |
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| ORIENTATION^ LPAREN! doubleNumberTuple RPAREN! SEMICOLON! |
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signedNumberTuple : signedNumber (COMMA! signedNumber)* |
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doubleNumberTuple : doubleNumber (COMMA! doubleNumber)* |
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inttuple : intConst (COMMA! intConst)* |
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protected |
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intConst |
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: OCTALINT | DECIMALINT | HEXADECIMALINT |
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: NUM_INT | NUM_LONG |
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protected |
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signedNumber : |
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doubleNumber : |
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(intConst | floatConst) |
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protected |
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floatConst |
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FLOATONE | FLOATTWO |
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NUM_FLOAT | NUM_DOUBLE |
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RBRACKET : ']' ; |
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LCURLY : '{' ; |
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RCURLY : '}' ; |
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/* |
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EQUAL : "==" ; |
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NOTEQUAL : "!=" ; |
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LESSTHANOREQUALTO : "<=" ; |
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LESSTHAN : "<" ; |
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GREATERTHANOREQUALTO : ">=" ; |
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GREATERTHAN : ">" ; |
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DIVIDE : '/' ; |
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DIVIDEEQUAL : "/=" ; |
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PLUS : '+' ; |
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PLUSEQUAL : "+=" ; |
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PLUSPLUS : "++" ; |
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MINUS : '-' ; |
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MINUSEQUAL : "-=" ; |
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MINUSMINUS : "--" ; |
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STAR : '*' ; |
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TIMESEQUAL : "*=" ; |
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MOD : '%' ; |
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MODEQUAL : "%=" ; |
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SHIFTRIGHT : ">>" ; |
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SHIFTRIGHTEQUAL : ">>=" ; |
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SHIFTLEFT : "<<" ; |
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SHIFTLEFTEQUAL : "<<=" ; |
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AND : "&&" ; |
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NOT : '!' ; |
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OR : "||" ; |
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AMPERSAND : '&' ; |
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BITWISEANDEQUAL : "&=" ; |
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TILDE : '~' ; |
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BITWISEOR : '|' ; |
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BITWISEOREQUAL : "|=" ; |
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BITWISEXOR : '^' ; |
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BITWISEXOREQUAL : "^=" ; |
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*/ |
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Whitespace |
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) |
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// Numeric Constants: |
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protected |
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Vocabulary |
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'\3'..'\377' |
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ID |
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options {testLiterals = true;} |
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('a'..'z'|'A'..'Z'|'_') |
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('a'..'z'|'A'..'Z'|'_'|'0'..'9')* |
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protected |
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Digit |
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'0'..'9' |
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('0'..'9')+ |
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// hexadecimal digit (again, note it's protected!) |
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protected |
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LongSuffix |
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: 'l' |
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| 'L' |
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HEX_DIGIT |
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: ('0'..'9'|'A'..'F'|'a'..'f') |
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protected |
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UnsignedSuffix |
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: 'u' |
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| 'U' |
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protected |
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FloatSuffix |
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: 'f' |
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| 'F' |
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// a numeric literal |
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NUM_INT |
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{ |
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bool isDecimal = false; |
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ANTLR_USE_NAMESPACE(antlr)RefToken t = ANTLR_USE_NAMESPACE(antlr)nullToken; |
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} |
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: ('+' | '-')? |
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( |
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'.' {_ttype = DOT;} |
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( ('0'..'9')+ (EXPONENT)? (f1:FLOAT_SUFFIX {t=f1;})? |
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{ |
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if ( t && |
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(t->getText().find('f') != ANTLR_USE_NAMESPACE(std)string::npos || |
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t->getText().find('F') != ANTLR_USE_NAMESPACE(std)string::npos ) ) { |
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_ttype = NUM_FLOAT; |
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} |
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else { |
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_ttype = NUM_DOUBLE; // assume double |
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} |
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} |
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)? |
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protected |
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Exponent |
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('e'|'E'|'d'|'D') ('+'|'-')? (Digit)+ |
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| ( '0' {isDecimal = true;} // special case for just '0' |
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( ('x'|'X') |
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( // hex |
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// the 'e'|'E' and float suffix stuff look |
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// like hex digits, hence the (...)+ doesn't |
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// know when to stop: ambig. ANTLR resolves |
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// it correctly by matching immediately. It |
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// is therefor ok to hush warning. |
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options { |
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warnWhenFollowAmbig=false; |
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} |
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: HEX_DIGIT |
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)+ |
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| //float or double with leading zero |
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(('0'..'9')+ ('.'|EXPONENT|FLOAT_SUFFIX)) => ('0'..'9')+ |
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| ('0'..'7')+ // octal |
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)? |
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| ('1'..'9') ('0'..'9')* {isDecimal=true;} // non-zero decimal |
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) |
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( ('l'|'L') { _ttype = NUM_LONG; } |
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protected |
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Vocabulary |
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'\3'..'\377' |
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Number |
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('+'|'-')? |
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( |
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( (Digit)+ ('.' | 'e' | 'E' | 'd' | 'D' ) )=> |
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(Digit)+ |
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( '.' (Digit)* (Exponent)? {_ttype = FLOATONE;} //Zuo 3/12/01 |
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| Exponent {_ttype = FLOATTWO;} //Zuo 3/12/01 |
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) //{_ttype = DoubleDoubleConst;} |
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(FloatSuffix //{_ttype = FloatDoubleConst;} |
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|LongSuffix //{_ttype = LongDoubleConst;} |
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)? |
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| |
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'.' {_ttype = DOT;} |
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( (Digit)+ (Exponent)? {_ttype = FLOATONE;} //Zuo 3/12/01 |
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//{_ttype = DoubleDoubleConst;} |
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(FloatSuffix //{_ttype = FloatDoubleConst;} |
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|LongSuffix //{_ttype = LongDoubleConst;} |
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)? |
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)? |
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| |
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'0' ('0'..'7')* //{_ttype = IntOctalConst;} |
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(LongSuffix //{_ttype = LongOctalConst;} |
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|UnsignedSuffix //{_ttype = UnsignedOctalConst;} |
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)* {_ttype = OCTALINT;} |
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| |
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'1'..'9' (Digit)* //{_ttype = IntIntConst;} |
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(LongSuffix //{_ttype = LongIntConst;} |
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|UnsignedSuffix //{_ttype = UnsignedIntConst;} |
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)* {_ttype = DECIMALINT;} |
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| |
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'0' ('x' | 'X') ('a'..'f' | 'A'..'F' | Digit)+ |
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//{_ttype = IntHexConst;} |
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(LongSuffix //{_ttype = LongHexConst;} |
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|UnsignedSuffix //{_ttype = UnsignedHexConst;} |
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)* {_ttype = HEXADECIMALINT;} |
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// only check to see if it's a float if looks like decimal so far |
438 |
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| {isDecimal}? |
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( '.' ('0'..'9')* (EXPONENT)? (f2:FLOAT_SUFFIX {t=f2;})? |
440 |
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| EXPONENT (f3:FLOAT_SUFFIX {t=f3;})? |
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| f4:FLOAT_SUFFIX {t=f4;} |
442 |
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) |
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{ |
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if ( t && |
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(t->getText().find('f') != ANTLR_USE_NAMESPACE(std)string::npos || |
446 |
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t->getText().find('F') != ANTLR_USE_NAMESPACE(std)string::npos ) ) { |
447 |
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_ttype = NUM_FLOAT; |
448 |
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} |
449 |
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else { |
450 |
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_ttype = NUM_DOUBLE; // assume double |
451 |
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} |
452 |
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} |
453 |
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)? |
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) |
455 |
< |
; |
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> |
; |
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457 |
< |
ID |
458 |
< |
options {testLiterals = true;} |
459 |
< |
: |
460 |
< |
('a'..'z'|'A'..'Z'|'_') |
461 |
< |
('a'..'z'|'A'..'Z'|'_'|'0'..'9')* |
462 |
< |
; |
457 |
> |
// a couple protected methods to assist in matching floating point numbers |
458 |
> |
protected |
459 |
> |
EXPONENT |
460 |
> |
: ('e'|'E') ('+'|'-')? ('0'..'9')+ |
461 |
> |
; |
462 |
> |
|
463 |
> |
protected |
464 |
> |
FLOAT_SUFFIX |
465 |
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: 'f'|'F'|'d'|'D' |
466 |
> |
; |