[antlr-interest] Changing Root Nodes in an AST,
Craig Main
craig at palantir.co.za
Fri Jul 15 05:38:50 PDT 2005
Hi all,
What do I change in my parser to alter
THIS:
#( TOK_IF expr ( statement )* ( TOK_ELSE ( statement )* )? ) With this:
TO THIS:
#( TOK_IF expr #(BLOCK (statement)* ) ( #(BLOCK (statement)* ) ) )? )
GIVEN:
ifStatement {log.Debug(null);}
: TOK_IF^ LPAREN! conditional RPAREN!
statementSequence
(
options {
warnWhenFollowAmbig = false;
}
: TOK_ELSE statementSequence
)?
;
statementSequence {log.Debug(null);}
: statementBlock
| statement
;
statementBlock {log.Debug(null);}
: LCURL! (statement (SEMI! statement)*)? RCURL!
;
statement {log.Debug(null);}
: assignmentStatement
| constantStatement
| ifStatement
;
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