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From Michael Heuer <heue...@acm.org>
Subject RE: [lang] text.Interpolation, on to 2.2
Date Tue, 28 Jun 2005 21:21:49 GMT

Michael Heuer wrote:

> Gary Gregory wrote:
>
> > - (for me ;-) Provide an Interpolation feature that allows a simple way
> > to use System properties to replace variables in a String. For me, this
> > could be as simple as:
> >
> >    String s = XXX.resolveAll(source, "$", "{", "}",
> > System.getProperties());
>
> Maybe it is a bit of overkill, but you could use Velocity for this:
>
> Velocity.init();
> VelocityContext ctx = new VelocityContext(System.getProperties());
> Template t = new Template(...);  // make a template from source
> StringWriter sw = new StringWriter();
> t.merge(ctx, sw);
> String s = sw.toString();

Sorry, even easier:

StringWriter sw = new StringWriter();
VelocityContext ctx = new VelocityContext(System.getProperties());
VelocityEngine.evaluate(ctx, sw, source);

   michael


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