[stringtemplate-interest] Passing values into templates

[Ben Hood]

Hi,

Although my current work is the 2nd project I've used ST to do  
multiple language code generation, I'm still fairly new to it and  
haven't understood all of the facets of the library yet.

I'm trying to generate a generic processing template that can be  
subclassed for different target languages

At the moment I'm trying to pass in the result of a computation from  
within a super template:

temp() ::= <<
int next = .....
if (next <ge()> 0x20 && next <le()> 0x2f) {
         return <readBytes(length={ next - 0x20 })>;
}
 >>

with

ge() ::= ">="
le() ::= "\<="

and

readBytes(length) ::= "<! This should be overriden by a subclass  
template !>"

I'd like to be able to implement the readBytes(length) template in a  
subtemplate that is specific to the target language.

Am I approaching this wrongly?

Do I need to approach the template definition for a language specific  
function invocation in a more generic fashion than I'm doing here?

If so, how?

Thanks in advance,

Ben