[antlr-interest] New article on StringTemplates and Treewalkers

[Sohail Somani]

> --------------------------------------------------------------------------------------
> // certain places in Java require a boolean type, where C allows "int" type:
> // * for condition:  for (int i=0; b; i++)
> // * while:  while (b)
> // * do-while: do { } while (b);
> // * if: if (b)
> 
> public class ForceToBooleanRule extends Rule {
>     private String newexpr;
>     private Token startToken = null;
>     private Token endToken = null;
> 
>     // if we see one of the patterns listed above, set startToken and 
> endToken and return true.
>     public boolean match(Source source) {
>         String current = source.currentToken.getText();
>         if (current.equals("for")) {

Is there some reason you just didn't do 
if (source.currentToken.getType()==Parser.FOR)...? :)

>         // here is where the expression is parsed and changed to be 
> boolean type:
>         newexpr = ExpressionUtils.forceToBoolean(expr, source);
>         return !expr.equals(newexpr);
>     }

forceToBoolean must be... err... interesting :)