You can do some really interesting things with Tcl-ish technology. It's worth looking into TH1, the stripped-down embedded Tcl that's used by fossil as a macro

You can do some really interesting things with Tcl-ish technology. It's worth looking into TH1, the stripped-down embedded Tcl that's used by fossil as a macro language: http://www.sqliteconcepts.org/THManual.pdf http://www.sqliteconcepts.org/THManual.pdf The entire implementation's about 4k lines of code.