On Thu, 25 Sep 2003, Nigel Rantor wrote: > Graham Barr wrote: > > At one time I was going to re-write it as a source filter. Using > > anonymous subs has all sorts of unwanted side effects, one being memory > > leaks in earlier versions of perl. > > Hmm...I have never looked into source filters before. How hard do you > reckon it would be then, eh?
Writing a source filter is like trying to modify the parse tree, but without a parse tree. I much prefer techniques that allow you to hook new nodetypes into the parse tree from the source language, and Perl pretty much has this anyway with exporting symbols into the callee namespace. S. -- Shevek http://www.anarres.org/ I am the Borg. http://www.gothnicity.org/
