There are several pages on the wiki regarding different methods for argument parsing and its cousin, named arguments.
This page is for general discussions regarding a potential system that might satisfy both of those.
Here we can toss back and forth general design questions, key concerns being:
- Which feels the most TCL-like
- Which might sacrifice some freedom for power

One that I've been working on here and there uses a prefix notation in the proc definition for the named argument system
to know what to do with.  For instance:

 proc foo { fname o_lname } {
      puts "$fname"
 }

 foo "Richard" -lname "Pryor"
 
Here, the lname is understood by a wrapping proc to be "switchable", and the proc also understands that fname is a required
proc.  What do people feel about similar ideas to expand the proc definitions?  Another idea is to implement some sort
of enumerated definition in the proc "e_actiontype", where actiontype might be defined, maybe within the proc body,
or a central location.