[antlr-interest] Comments / White-Space and All The Rest
parrt at cs.usfca.edu
Fri Nov 24 12:05:55 PST 2006
On Nov 24, 2006, at 11:44 AM, Randall R Schulz wrote:
> What "i" values do I use? The comment doesn't specify how that
> is interpreted.
Token index. See myToken.getTokenIndex().
>> Looking at the generated code and looking at the source code for the
>> run time is very important.
> May I respectfully disagree? I should not have to understand a tool's
> internals to use it, should I?
Yes, when you have no documentation and you are trying to use a
library. Further, you can substitute knowledge of grammars with
knowledge of Java code by looking at grammar to Java code
translation. This will always be of help to you.
>>> I also notice that rules that return a single value (which is all
>>> but two of the rules in my grammar) don't trigger the generation of
>>> return types that descend from ParserRuleReturnScope. In those
>>> cases, how do I
>>> get at the start and stop tokens?
>> Ask and ye shall receive. ANTLR senses it and turns on multiple
>> return values to return start and stop for you. Just try it and see
>> what happens. that is the name of the game.
> Trial and error makes for very slow going, which is how it's been for
I feel that only people with experience should use the beta because
there is no documentation. You must rely on experience and looking at
> Are you sure you won't share some documentation?
You will see a beta book up in a couple of weeks at the pragmatic
programmer's website. :)
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