[antlr-interest] a question about comment
yhhf_dy
yhhf_dy at yahoo.com
Wed Oct 9 13:45:24 PDT 2002
Hi everybody,
I'm new to Antlr. I want to develop a parser for a language. In the
language it uses REM and ' as keywords for comment. I wrote the
following grammar to deal with comments. it obviously that "rem " is
nondeterminism upon IDENT. Would you please help me erase the
nondeterminism error. thanks a lot.
COMMENT
: "rem "
| '\'' (~('\n'|'\r'))* ('\n'|'\r'('\n')?)
{$setType(ANTLR_USE_NAMESPACE(antlr)Token::SKIP); newline();}
;
IDENT
options {testLiterals=true;}
:('a'..'z'|'_') ('a'..'z'|'_'|'0'..'9')*
;
WS_
:(' '
| '\t'
){ _ttype = ANTLR_USE_NAMESPACE(antlr)Token.SKIP; }
;
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