[stringtemplate-interest] File based templates and maps.

[Caleb Lyness]

Hi,

Thank you for the quick response. I managed to do what I wanted (using a
group file).

Here is another interesting thing I have been playing with:

   $(headerTemplate)(); null=headers/default()$     

It includes a default header template if the attribute has not been set.
My first try was this:
$(headerTemplate; null="headers/default")()$ 
This does not work? should it though? cf: </(*expr*)/(/argument-list/)>

I think it would be nice for future newbies if there was an example
along side the file based
template (.st) method in the source. Would speed the learning curve up a
bit.
cf: src\org\antlr\stringtemplate\test.

Here is quick .stg example:

te.stg:
group groupName;

typeInitMap ::= [
   "Integer":"0",
    "long":"1",
    default:"null"
]

variable(type,name) ::= <<
   <b>$type$</b> $name$ = $typeInitMap.(type)$;$\n$
>>

t.java:
import java.io.File;
import java.io.FileReader;

import org.antlr.stringtemplate.StringTemplate;
import org.antlr.stringtemplate.StringTemplateGroup;
import org.antlr.stringtemplate.language.DefaultTemplateLexer;

public class t {
    /* Quick and very nasty example: */
    public static void main(String[] args)
    throws Exception
    {
        File templateFileName = new File("te.stg");
        StringTemplateGroup group = new StringTemplateGroup(
                new FileReader(templateFileName),
                DefaultTemplateLexer.class //Leave away if you want to
use angle brace notation
            );
       
        StringTemplate template = group.getInstanceOf("variable");       
        template.setAttribute("type", "Integer");
        template.setAttribute("name", "id");
        System.out.println(template.toString());
    }
}







>> Hi,
>>
>> I have been trying to use a map for file based templates. So far no  
>> luck. Is this actually
>> possible or have I missed the point. I have tried too many  
>> combination to list them here, so
>> I just list the last thing I tried:
>>
>> hash map defined in reason.st:
>> ---
>> $[
>>   "1":"reason for 1",
>>   "2":"reason for 2",
>>   "D":"reason for D",
>>   default : "unknown reason"
>> ]$
>> ---
>>
>> Now this would make some sense, no?
>>     
>
> Hi, sorry.  Those maps only work in group file formats (.stg files).
>
> Terence
>   
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