Hi all,
I'm really a newbie and have a question. I would like to define string
literals enclosed in ` and '. Here's the rules :\
STR
: '`' ( ESC_SEQ | ~('\\'|'"') )* '\'';
ESC_SEQ
: '\\' ('b'|'t'|'n'|'f'|'r'|'"'|'\''|'\\')
| UNICODE_ESC
| OCTAL_ESC
;
OCTAL_ESC
: '\\' ('0'..'3') ('0'..'7') ('0'..'7')
| '\\' ('0'..'7') ('0'..'7')
| '\\' ('0'..'7')
;
UNICODE_ESC
: '\\' 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT
;
HEX_DIGIT : ('0'..'9'|'a'..'f'|'A'..'F') ;
I dunno why it doesn't work. Any help is appreciated.
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