A macro and/or template processor written in Tcl for Tcl. See http://www.wjduquette.com/expand/index.html for its homepage. This is a useful tool for conversion of tcl-based documents into other formats. The range of applications include * Generation of website with uniform look & feel. See the homepage [http://www.wjduquette.com/] of the expand author, or [AK]'s [memchan] website at SourceForge [http://memchan.sourceforge.net]. * Conversion of manpages in a tcl-based markup to HTML, nroff, TMML, etc. * Generation and setup of Makefiles for an extension based upon a template. All of this falls under the broad category of [Template and Macro processing].