[stringtemplate-interest] Trying to output StringTemplate with values

[Louis Burroughs]

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
>
>
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