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lookahead and yytext
From: |
Brad |
Subject: |
lookahead and yytext |
Date: |
Mon, 08 Mar 2010 19:21:50 -0600 |
User-agent: |
Thunderbird 2.0.0.23 (Windows/20090812) |
Here is a snippet from my grammer that parses a C++-like language.
field_declaration:
modifiers_opt type IDENTIFIER SEMICOLON
{
/* stuff */
}
;
method_header:
modifiers_opt type single_identifier single_identifier LPAREN RPAREN
{
/* stuff */
}
| modifiers_opt VOID single_identifier LPAREN RPAREN
{
/* stuff */
}
;
single_identifier:
IDENTIFIER { /* stuff with yytext */ }
;
field_declaration and method_header are similar enough that Bison has to
look for the following LPAREN (right?). The problem I'm having is that
yytext inside single_identifier is a '(' instead of the name of the
method. So if I try to parse this line:
int MyMethod()
my parser thinks the method is called "(" instead of "MyMethod". Am I
right that this is a lookahead issue? If it is, how do I fix it?
- lookahead and yytext,
Brad <=