[antlr-interest] StringTemplate issue
parrt at cs.usfca.edu
Mon Jun 21 10:39:04 PDT 2004
On Jun 21, 2004, at 3:03 AM, birmanstefan wrote:
> Hello Ter,
> I used a jarred app, which includes a library of templates, and
> run in a "Can't load template" error. It seems that it tries to load
> template from an illegal path. I put a testcase in group's files
> directory called test4tp.jar (includes all you need to reproduce the
> The fix was to create a group without a root directory and include
> all the templates in the root of the jar. The bad thing is that it
> doesn't preserve the hierarchy in jar file and have to modify in
> original code (=> two versions : for jarred and un-jarred app).
> I took a look in the StringTemplateGroup.loadTemplate() and I saw
> that it uses some classLoader stuff to load the template. Enlarging
> this mechanism in order to be able to load templates from dir
> structure in a jar file (JAR URL) should fix the issue. I'm not very
> familiar with this mechanism, so I must ask : am I looking in the
> wrong direction?
Hmm...for the code generator I'm working on now, I use "fully
qualified" template names like "org/antlr/codegen/templates/foo" which
it loads from the classpath. I do this rather than paths under a
rootDir as I don't know where the app will be unjar'd or used. Are you
saying that Java's jar mechanism doesn't duplicate this when the dir is
jar'd up? Ack! If so, I'll have to dig into and figure out what do.
> On the other hand, are there any news on StringTemplates 2.0?
It's totally great! Still haven't done the manual, but I'm testing out
the features now for the ANTLR 3.0 code generator. StringTemplate for
code gen is amazingly fabulous! (er...if I do say so myself). I expect
to get that out in July. Want a pre-release copy? Send me email
CS Professor & Grad Director, University of San Francisco
Creator, ANTLR Parser Generator, http://www.antlr.org
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