Ray,
In REXX unless you set the var to a null value - the value will be the name of
the var.
In your case
item would display as ITEM in rexx until it had a value assigned to it. So
not quite the same in REXX as CLIST.
To demonstrate
/* Rexx -
Display contents of a var
*/
trace ?i
item1 = ' '
Say "Item contains " item
Say "Set Item:" item1 " value"
When it is executed it shows:
6 *-* item1 = ' '
>L> " "
+++ Interactive trace. TRACE OFF to end debug, ENTER to continue. +++
8 *-* Say "Item contains " item
>L> "Item contains "
>L> "ITEM"
>O> "Item contains ITEM"
Item contains ITEM
9 *-* Say "Set Item:" item1 " value"
>L> "Set Item:"
>V> " "
>O> "Set Item: "
>L> " value"
>O> "Set Item: value"
Set Item: value
Lizette
>
>Does this technique work the same in Rexx?
>
>Thanks,
>
>Ray Baraniecki
>Morgan Stanley Smith Barney
>18th Floor
>1 New York Plaza
>New York, NY 10004
>Office - 212-276-5641
> Cell - 917-597-5692
>[email protected]
>BE CARBON CONSCIOUS. PLEASE CONSIDER OUR ENVIRONMENT BEFORE PRINTING THIS
>E-MAIL.
>
>-----Original Message-----
>From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of
>McKown, John
>Sent: Tuesday, August 11, 2009 10:02 AM
>To: [email protected]
>Subject: Re: Clist Quest
>
>> -----Original Message-----
>> From: IBM Mainframe Discussion List
>> [mailto:[email protected]] On Behalf Of Baraniecki, Ray
>> Sent: Tuesday, August 11, 2009 8:53 AM
>> To: [email protected]
>> Subject: Clist Quest
>>
>> I ran across the following IF statement in a Clist that I am
>> working on. The statement itself is understandable, it's the
>> period usage that I don't understand. Can anyone shed some
>> light on this?
>>
>> IF .&ITEMS < .5 THEN DO
>>
>>
>> Thanks,
>>
>>
>> Ray Baraniecki
>
>suppose the line were:
>
>IF &ITEMS < 5 THEN DO
>
>What if &ITEMS is null ('')? Without the periods, the CLIST intepreter would
>see the line:
>
>IF < 5 THEN DO
>
>which it could not handle (syntax error). So the periods are there just to
>make the line syntactically correct in the case where &ITEMS is null.
>
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