[stringtemplate-interest] Trying to output StringTemplate with values

[Louis Burroughs]

When I launch STViz I see a tree view with the template name (template())
and below it the attributes attr1=foo1, attr2=foo2, etc.  What I want to do
is output this information in template form.


If I start with code:

SET currentYear = '2011';

I use an antlr grammar to parse this code and I would like to output to a
file something like:

<Set("currentYear", "2011")>

If the template is:

Set(var, val)::="SET <var> = <val>"

Thanks,
Louis



On Wed, Aug 31, 2011 at 2:41 PM, Terence Parr <parrt at cs.usfca.edu> wrote:

> ok,I'm still not sure what you're trying to achieve.  can you use the STViz
> to see the parameters you are looking for?
> Ter
> On Aug 29, 2011, at 12:30 PM, Louis Burroughs wrote:
>
> > When I use STGroup.show() I get a dump of the original STGroup without
> the actual attribute values.  ST.toString() gives me the template name and
> doesn't print the attributes or recurse .  ST.render() is inserting the
> attributes into the template so I get a roundtrip of the code I parsed with
> Antlr.  I am looking for an output of the template with attribute values as
> parameters.
> >
> > I wrote my own version of show, but it is rough and I don't want to do
> something that you guys are doing already.
> >
> > btw -> I am a huge fan of Antlr and StringTemplate!
> >
> >
> > public void writeTemplate(String template, String parseFile, String
> encoding)  {
> >
> >               try {
> >                       ANTLRFileStream input = new
> ANTLRFileStream(parseFile, encoding);
> >                       EsqlGrammarLexer lexer = new
> EsqlGrammarLexer(input);
> >                       TokenStream tokens = new CommonTokenStream(lexer);
> >                       EsqlGrammarParser parser = new
> EsqlGrammarParser(tokens);
> >                       EsqlGrammarParser.esqlContents_return esqlContents
> = parser.esqlContents();
> >
> >                       BufferedTreeNodeStream nodeStream = new
> BufferedTreeNodeStream(new CommonTreeAdaptor(),
> >                                       esqlContents.getTree());
> >
> >                       EsqlTree ast = new EsqlTree(nodeStream);
> >                       ast.setTemplateLib(new STGroupFile(template));
> >
> >                       EsqlTree.evaluator_return r = ast.evaluator();
> >
> >                       System.out.println(ast.getTemplateLib().show());
> >
> >                } catch (RecognitionException ex) {
> >                       LOGGER.log(Level.SEVERE, null, ex);
> >
> >               } catch (IOException e) {
> >                       LOGGER.log(Level.SEVERE, null, e);
> >               }
> > }
> >
> >
> >
> >
> > My version of show
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> >
> >       private String show(String name, STGroup stg, ST template) throws
> IOException, JSONException {
> >               StringBuilder buf = new StringBuilder();
> >               CompiledST c = stg.rawGetTemplate(name);
> >               if (c == null)
> >                       return "";
> >               int slash = name.lastIndexOf(47);
> >               name = name.substring(slash + 1, name.length());
> >
> >               buf.append(name);
> >               buf.append('(');
> >               Map<String, Object> attributes = template.getAttributes();
> >               if (c != null && c.formalArguments != null) {
> >                       for (FormalArgument fa :
> c.formalArguments.values()) {
> >                               buf.append(fa);
> >                               buf.append(" = ");
> >                               Object o = attributes.get(fa.name);
> >                               // System.out.println(o);
> >                               if (o instanceof List) {
> >                                       List list = (List) o;
> >                                       if (!list.isEmpty()) {
> >                                               if (list.get(0) instanceof
> ST) {
> >                                                       for (Object o2 :
> list) {
> >                                                               if (o2 ==
> null)
> >
> continue;
> >                                                               for (int
> ndx = 0; ndx > indent; ndx++) {
> >
> buf.append(" ");
> >                                                               }
> >                                                               indent +=
> 4;
> >                                                               if
> (!isFirst) {
> >
> buf.append("<");
> >                                                               } else {
> >
> isFirst = false;
> >                                                               }
> >
> buf.append("{");
> >                                                               ST st =
> (ST) o2;
> >
> buf.append(show(st.getName(), stg, st));
> >
> buf.append(", ");
> >                                                       }
> >                                                       buf.append("}");
> >                                               } else {
> >                                                       buf.append("[");
> >
> buf.append(Misc.join(list.iterator(), ","));
> >                                                       buf.append("], ");
> >                                               }
> >                                       }
> >                               } else {
> >                                       buf.append("\"");
> >                                       buf.append(o);
> >                                       buf.append("\"");
> >                                       buf.append(", ");
> >                               }
> >                       }
> >
> >               }
> >               buf.append(')');
> >               buf.append(">");
> >               buf.append(System.getProperty("line.separator"));
> >               // buf.append(new StringBuilder().append(" ::=
> >               // <<").append(Misc.newline).toString());
> >               // buf.append(new
> >               //
> StringBuilder().append(c.template).append(Misc.newline).toString());
> >               // buf.append(new
> >               //
> StringBuilder().append(">>").append(Misc.newline).toString());
> >
> >               return buf.toString();
> >       }
> >
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> >
> > On Mon, Aug 29, 2011 at 2:20 PM, Terence Parr <parrt at cs.usfca.edu>
> wrote:
> > > I just can't get it to output a String or File in the format I am
> looking for.
> >
> > What is the issue?
> >
> > Ter
> >
> >
> > _______________________________________________
> > stringtemplate-interest mailing list
> > stringtemplate-interest at antlr.org
> > http://www.antlr.org/mailman/listinfo/stringtemplate-interest
>
>
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