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How Can we set OR condition in rexx

 
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shr_amar
Warnings : 2

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Joined: 02 May 2005
Posts: 126
Location: UK

PostPosted: Fri Jun 12, 2009 1:22 pm    Post subject: How Can we set OR condition in rexx
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Hello Friends,

How can we check OR condition in REXX. Requirement is like this

REXX
For e.g
Say "ENTER WAREHOUSE NAME"
Parse PULL Wh_ipt
Here i want to check if Wh_ipt = T or X or Z

proceed other wise send msg to enter the WAREHOUSE NAME again

Regards
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Garry Carroll

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Joined: 08 May 2006
Posts: 991
Location: Dublin, Ireland / Edinburgh, Scotland

PostPosted: Fri Jun 12, 2009 1:25 pm    Post subject:
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Use the defined 'or'symbol - usually ' |' (vertical bar),
Code:
if  (Wh_ipt = T | Wh_ipt = X | Wh_ipt = Z)


Garry .
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Marso

REXX Moderator


Joined: 13 Mar 2006
Posts: 1224
Location: Israel

PostPosted: Fri Jun 12, 2009 10:14 pm    Post subject:
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When I need 3 or more ORs, I prefer to use:
Code:
/* assuming T, X, Z, Y and R are variables containing warehouse names */
if WordPos(Wh_ipt,T X Z Y R) <> 0
or
Code:
/* assuming T, X, Z, Y and R are warehouse names */
if WordPos(Wh_ipt,'T X Z Y R') <> 0


A note about your PULL: if you are reading your input from a file (in batch, for example),
variable Wh_ipt will have a lot of extra spaces on the right (up to the record length, almost certainly 80).
You can prevent that by doing:
Code:
/* assuming you expect only ONE WORD  */
Parse PULL Wh_ipt .
or
Code:
/* assuming you expect MORE THAN ONE WORD  */
Parse PULL Wh_ipt
Wh_ipt = Strip(Wh_ipt)
For example, extra spaces in the DSNAME parameter is a cause of failure in ALLOC statements, .
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