[antlr-interest] ANTLRWorks 1.1.7 reliability

[Artemus Ward]

I am new to all things ANTLR but I've been having pretty good success
writing a grammar that recognizes my target language.  However I am a
bit unconfident about why ANTLRWorks Interpreter treats certain inputs
the way it does.

I can post the grammer if it helps but perhaps the problem I've got is
easily recognizable just from this description. I have the following
rules:

function_ref
	:	NAME '(' arg_list ')' | NAME '(' ')'  ;

arg_list
	:	exp (',' exp)*  ;

When I provide an input like X(1) and ask to ANTRLWorks to interpret
it as a function_ref, it shows it is parsed as I expect.  But I have
other rules, such as:

exp	:	
		term (('||'|'+'|'-') term)* ;

and term is in turn defined using other rules that eventually include
a function_ref.  According to my grammar the input X(1) can also be
parsed using this rule. But when I ask ANTLRWorks to do that, it shows
a correct derivation except that the closing parenthesis seems not to
be included in the derivation.

So the question I have is whether this is a quirk of the display, or
wether the input has been recognized without consuming all the tokens?
 The latter would of course mean I'm not understanding something.

Art