Re: Evaluate complex conditions

Oh man, I think it just dawned on me what he's asking for: 

You want to give users a long field to type into, and have them type a 
question which you will then parse and assemble into a useable RPGIV 
calculation?   For example, something like 

"List everyone that lives in Springfield, owes us money, and hasn't bought 
anything for 94 days.   By the way, they have to live in Missouri, 
Illinois, or Canada.  Include their address and phone number on the list. 
List last name first, in order by area code and exchange."

That sort of thing?

_______________________
Booth Martin
Booth@MartinVT.com
http://www.MartinVT.com
_______________________




D.BALE@handleman.com
Sent by: owner-midrange-l@midrange.com
10/23/2000 01:50 PM
Please respond to MIDRANGE-L

 
        To:     MIDRANGE-L@midrange.com
        cc: 
        Subject:        Re: Evaluate complex conditions

You mean like:

     c                   Eval      Truth = a = b and (c = d or c = e or c 
= f)

Ya, sure, RPG-IV!

Dan Bale
IT - AS/400
Handleman Company
248-362-4400  Ext. 4952

-------------------------- Original Message --------------------------
Sorry guys,  I didn't do a very good job of explaining what I was looking 
for.
I don't mean I want code that is an example of testing for complex 
conditions,
 I
mean I'm looking for code that will evaluate statements like the one in my
original example and determine the truth of the statement.  You see, I'm
 writing
a query tool and I want the user to be able to provide selection criteria 
in
 an
english style IF format similar to cobol or other query tools I've seen. I
 can
currently handle simple criteria with "and/or" connectors, but I can't 
seem to
come up with a good method for handling multiple levels of parenthesis.

Terry Grider wrote:

> Has anyone ever written or seen an example of program code designed to
> evaluate complex conditions?  For example, if you wanted to evaluate a =
> b and (c = d or c = e or c = f).  I'm looking for something that can do
> multiple levels of parenthesis and all "and/or" combinations.
>
> --
> Terry Grider
> tgrider@arkansas.net
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