I need to manage a growing set of similar-but-different ASCII files. ( It so happens that they're Apache VirtualHosts, but that's not particularly relevant. ) For each production website, the developers might want as many as four variant configs for a variety of reasons.
Would you please recommend your favorite templating system? I know of a few, M4 and Template::Toolkit come to mind. My most important feature isn't power, it's intuitive operation and elegant simplicity.