[antlr-interest] ANTLR problem with .+ in tree grammar

[Dariusz Dwornikowski]

Hi,

I've got such a problem. I am experimenting with the ANTLR in order to
implement some kind of language later. The example below.

Grammar file (interesting part):
...
tokens{
BODY;
}

componentStatement
    :    'component'^ IDENT  '{'! body '}'! ';'!
    ;

body
    :    .+ -> BODY
    ;
...

tree gramar file:
...

component




    :   ^('component' name=IDENT body=BODY) {comp.add(new
Component($name.text, $body.text));}





    ;

..

What i want is to catch such a situation (for experiment purposes only):

component Foo {
    anything goes here 123 :)
};

Now, I know rewrite in my example rewrites .+ to BODY it is ok. When I
change the grammar to
body
    :    .+ -> BODY
    ;

and tree grammar to:

component
    :   ^('component' name=IDENT body=(.+)) {comp.add(new
Component($name.text, $body.text));}





    ;

the generates Walker generates it wrong:
comp.add(new Component((name!=null?name.getText():null), b.text)); it
should have been b.getText()


How can I change files in order to catch what I want?





PS: ANTLR is great:) And Greetings to everybody :)



-- 
Pozdrawiam,
-----------------------------------------------------------------------------
Dariusz Dwornikowski,
Institute of Computing Science, Poznań University of Technology
www.cs.put.poznan.pl/ddwornikowski/
room 421 WE | tel. +48 61 665 21 24   | mobile: +48 533 890 600
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