[REBOL] Re: Using a Math oper. buried in a variable
From: gregg:pointillistic at: 2-Apr-2009 14:50
Hi Duke,
>>> num1
mgc> == 5
>>> num2
mgc> == 6
>>> op
mgc> == *
>>> do reform [num1 op num2]
mgc> == 30
>>>
mgc> Is it OK for me to think that this is a PITA?
Sure, you can think whatever you want. :) How would you like it to
work, and what is your ultimate goal?
A big part of understanding REBOL is figuring out when evaluation
occurs, and how values are evaluated.
I almost never DO strings. 1) it's just non-REBOLish. REBOL is a data
language, and you can almost always build up expressions to evaluate
far easier using native types, and 2) it's a risky habit to get into,
in case, one day, you write something that uses untrusted data.
-- Gregg
