[antlr-interest] Re: StringTemplate question

[Terence Parr]

Hi Luis,

I have also made these changes in the Java version and added tests for 
char escaping...fixed some stuff concerning that.

Terence

On Friday, January 2, 2004, at 08:49 AM, llza2003 wrote:

> Hi,
>
> I have to admit my interest isn't purely altruistic. I really would
> like to be able to nest anonymous templates. I just figured it would
> be unfair to ask someone to implement my requirement without at least
> giving it a bash myself. ;)
>
> I have a patch available which I'd be happy to email to anybody who's
> interested. It's for the C# port only unfortunately. I haven't had
> time to apply it to the Java version. It isn't a big change so it
> should be easy to port from C# to Java. Specifically:
>
> 1. Changed lexer in action.g to recognize nested anonymous templates
> 2. Changed lexer in action.g to recognize \r as whitespace
> 3. Changed scarfing in parseAttributeExpressionChunk in
> StringTemplate.cs to recognize nested anonymous templates
>
> The code isn't the prettiest, but it seems to work more or less.
> Caveat Emptor. :)
>
> Luis
> --- In antlr-interest at yahoogroups.com, Terence Parr <parrt at c...>
> wrote:
>>
>> On Thursday, January 1, 2004, at 01:10 PM, llza2003 wrote:
>>
>>> Hi,
>>>
>>> It seems it is not possible to nest anonymous templates in the
>>> StringTemplate library, e.g.
>>>
>>> $A:{$attr:{$attr.B$}$}$
>>
>> Howdy :) Hmm...Yeah, I think somebody else found this too...yep,
> found
>> this in my bugs list:
>>
>> * Matthew Ford: Support nested anon templates or return better
> error.
>>
>> Sorry about that...no conceptual reason, just a very bad scanner
> (which
>> I do by hand since the delimiters are unrestricted).  Actually, it
>> might be in the stringtemplate action lexer itself not the thing
> that
>> chunk up the template.
>>
>> Sure, send in a patch if you want :)  Matthew will thank you too...
>>
>> Thanks for your interest...
>>
>> Ter
>>
>>> Is this in fact true? If so, is there a conceptual reason why
> this is
>>> not supported? It seems reasonably straightforward to implement
> and I
>>> thought I should check before I rush off and implement something
> that
>>> is already supported or, even worse, not conceptually sound.
>>>
>>> :-)
>>>
>>> Luis
>>>
>>>
>>>
>>>
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>> --
>> Professor Comp. Sci., University of San Francisco
>> Creator, ANTLR Parser Generator, http://www.antlr.org
>> Co-founder, http://www.jguru.com
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>
>
>
>
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--
Professor Comp. Sci., University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
Co-founder, http://www.jguru.com
Co-founder, http://www.knowspam.net enjoy email again!
Co-founder, http://www.peerscope.com pure link sharing




 

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