[antlr-interest] Re: nested return statements
genericised
trigonometric at softhome.net
Thu Aug 15 08:26:55 PDT 2002
Here is an attempt to clarify my last post:
How can I make a parser rule so that I can use nested return
statements like this:
blah returns[String s]
: String p = (blah2)+
{ s=p; }
;
blah2 returns[String s]
: i:(INT)
{ s=i.getText(); }
;
I can acheive this behaviour by editing the generated parser so that
it contains rules like:
String p
if ((LA(1)==INT)) {
p=blah2();
}
return p
Essentially I want to have a heirarchy of nested rules wherby:
subsubrule returns a String that is caught by subrule
subrule adds to this and returns a String that is caught by rule
rule returns a String that is caught by the calling class.
Is this possible in ANTLR?
Davy Crocket
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