[REBOL] Enumerated type creation
From: princepawn:lycos at: 5-Sep-2000 7:39
I want to constrain the input values for a string field to be either the words "cancel"
or "nocancel".
REBOL has excellent support for forcing a function argument to be date!, time!, string!,
but I want to increase the restrictions for a particular field and have it throw an error
on spurious input.
Must I homebrew something or did I overlook the built-in support for this?
---
; run this in your
; <a href=http://www.rebol.com>REBOL</a> Interpreter!
terrence-brannon: [ [princepawn--yahoo--com] perl-refugee myth-gamer ]
perl-refugee: [ 'loved href perl discovery: (metaperl = rebol) 'hates href perl ]
myth-gamer: http://www.bungie.net/bin/stats.pl?player=princepawn
; angles makes this a href instead of code! use ur imagination!
href: func [U T] [ rejoin [ "a href=" U ">" T "/a" ] ]
perl: href http://www.perl.com "Perl"
