Hi Qiao,
If you feel the GETTEXT() is costly, the easiest way is to write a
parser rule, which receives this as a token and rewrites and returns the
desired. Instead of matching the lexer token in elsewhere in your parser
grammar, try to match the new parser rule.
For example:
Lexer Grammar:
SINGLE_QUOTED_STRING : SQUOTE (~SQUOTE)* SQUOTE ;
Parser Grammar:
single_quoted_string[std::string& result] : SINGLE_QUOTED_STRING
{
pANTLR3_COMMON_TOKEN token = $SINGLE_QUOTED_STRING;
ANTLR3_MARKER start = token->getStartIndex(token);
ANTLR3_MARKER end = token->getStopIndex(token);
result.assign( (char*) start, stop-start+1 ); //create it with your
requirements.
};
Thanks,
Gokul.
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