[stringtemplate-interest] [RE:] Re: [RE:] Re: NullPointerException from stgroup.getInstance()
Terence Parr
parrt at cs.usfca.edu
Wed Jun 22 11:39:14 PDT 2011
but it does say "v3 not v4" at top ;)
Ter
On Jun 22, 2011, at 11:09 AM, Daniel Brenner wrote:
> thanks alot. It's running smoothly now.
>
> I checked again: the "Five minute introduction" does not contain the hint that such a header is required.
>
> Thanks again,
>
> - Daniel
>
>
>
> -----Ursprüngliche Nachricht-----
> Von: Terence Parr mailto:parrt at cs.usfca.edu
> Gesendet: 21.06.2011 20:13:17
> An: stringtemplate-interest List mailto:stringtemplate-interest at antlr.org
> Betreff: [RE:] Re: [stringtemplate-interest] [RE:] Re: NullPointerException from stgroup.getInstance()
>
> well, you really want
>
> decl(title, body) ::= ...
>
> right? ;)
>
> no errors other than NPE?
> T
> On Jun 21, 2011, at 10:35 AM, Daniel Brenner wrote:
>
> > hi Ter,
> >
> > tried it. Now, "decl.st" looks like
> >
> > t(args) ::= <<
> > <html>
> > <head>
> > <title>$title$</title>
> > </head>
> > <body>
> > <h1>$title$</h1>
> > </body>
> > </html>
> >>>
> >
> > and it still keeps giving me the NPE.
> >
> > Cheers,
> >
> > - Daniel
> >
> >
> >
> > -----Ursprüngliche Nachricht-----
> > Von: Terence Parr mailto:parrt at cs.usfca.edu
> > Gesendet: 21.06.2011 19:28:10
> > An: Daniel Brenner mailto:daniel.brenner at cas.de
> > Cc: mailto:stringtemplate-interest at antlr.org
> > Betreff: [RE:] Re: [stringtemplate-interest] NullPointerException from stgroup.getInstance()
> >
> > hi. do you have a header in each .st file? I might make a backward compat thing but you need a formal header for now
> >
> > t(args) ::= <<
> > template
> > >>
> >
> > T
> > On Jun 21, 2011, at 4:51 AM, Daniel Brenner wrote:
> >
> > > Hi everybody,
> > >
> > > after a long time I want to use stringtemplate in one of my projects againg. I worked with stringtemplate v2 and the early versions of 3. However, it seems that I cannot get v4 working.
> > >
> > > This is my scenario:
> > > In the folder "content/" there is the template file "decl.st" containing a very easy HTML page
> > >
> > > <html>
> > > <head>
> > > <title>$title$</title>
> > > </head>
> > > <body>
> > > <h1>$title$</h1>
> > > </body>
> > > </html>
> > >
> > >
> > > The source code with stringtemplate v3 is this
> > >
> > > StringTemplateGroup group = new StringTemplateGroup(null, "content/", DefaultTemplateLexer.class);
> > > StringTemplate template = group.getInstanceOf("decl");
> > > template.setAttribute("title", "Hello World");
> > >
> > > And it works perfectly fine.
> > >
> > > The equivalent in stringtemplate v4 (4.0.2) is - from what I figured and please correct me if I am wrong -
> > >
> > > STGroup group = new STGroupDir("content", '$', '$');
> > > ST template = group.getInstanceOf("decl");
> > > template.add("title", "Hello World");
> > >
> > > Now when I run this, I am seeing a NullPointerException:
> > >
> > > Exception in thread "main" java.lang.NullPointerException
> > > at org.stringtemplate.v4.STGroup.loadTemplateFile(STGroup.java:624)
> > > at org.stringtemplate.v4.STGroupDir.loadTemplateFile(STGroupDir.java:165)
> > > at org.stringtemplate.v4.STGroupDir.load(STGroupDir.java:127)
> > > at org.stringtemplate.v4.STGroup.lookupTemplate(STGroup.java:226)
> > > at org.stringtemplate.v4.STGroup.getInstanceOf(STGroup.java:160)
> > > at Fancy.main(Fancy.java:15)
> > >
> > > Also with stringtemplate v4.0.3 I am seeing the NPE.
> > >
> > > What did I do wrong? I want to use v4 because of its cool new feature.
> > >
> > > Alongside with the NullPointerException I get the following output in my eclipse console:
> > >
> > > decl.st 1:1: invalid character '<'
> > > decl.st 1:5: invalid character '>'
> > > decl.st 2:1: invalid character '<'
> > > decl.st 1:1: no viable alternative at input 'html'
> > > decl.st 2:5: invalid character '>'
> > > decl.st 3:1: invalid character '<'
> > > decl.st 3:6: invalid character '>'
> > > decl.st 3:7: invalid character '$'
> > > decl.st 3:13: invalid character '$'
> > > decl.st 3:15: invalid character '<'
> > > decl.st 3:16: invalid character '/'
> > > decl.st 3:21: invalid character '>'
> > > decl.st 4:1: invalid character '<'
> > > decl.st 4:2: invalid character '/'
> > > decl.st 4:6: invalid character '>'
> > > decl.st 5:1: invalid character '<'
> > > decl.st 5:5: invalid character '>'
> > > decl.st 6:1: invalid character '<'
> > > decl.st 6:3: invalid character '>'
> > > decl.st 6:4: invalid character '$'
> > > decl.st 6:10: invalid character '$'
> > > decl.st 6:12: invalid character '<'
> > > decl.st 6:13: invalid character '/'
> > > decl.st 6:15: invalid character '>'
> > > decl.st 7:1: invalid character '<'
> > > decl.st 7:2: invalid character '/'
> > > decl.st 7:6: invalid character '>'
> > > decl.st 8:1: invalid character '<'
> > > decl.st 8:2: invalid character '/'
> > > decl.st 8:6: invalid character '>'
> > >
> > > What is this all about?
> > >
> > > Thanks in advance and cheers,
> > >
> > > - Daniel
> > >
> > > _______________________________________________
> > > stringtemplate-interest mailing list
> > > stringtemplate-interest at antlr.org
> > > http://www.antlr.org/mailman/listinfo/stringtemplate-interest
> >
> >
> >
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