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checking a variable for value other than alphabet

 
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ankit saxena

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Joined: 06 Oct 2010
Posts: 55
Location: india

PostPosted: Mon Oct 18, 2010 11:04 pm    Post subject: checking a variable for value other than alphabet
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how to check if a variable contains only alphabets or it has any special character or commas , fullstop also.
thanks..
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Phrzby Phil

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Joined: 31 Oct 2006
Posts: 962
Location: Richmond, Virginia

PostPosted: Mon Oct 18, 2010 11:14 pm    Post subject:
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What's fullstop?

Did you try anything yourself? What happened when you did?
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ankit saxena

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Joined: 06 Oct 2010
Posts: 55
Location: india

PostPosted: Mon Oct 18, 2010 11:24 pm    Post subject: re:
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actually i want to check whether t DSN name given by a user is proper or not for this i need to check whether it is free from any spl character apart from scope terminator (.) ,
but i m not getting any logic ... as to how to check.
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Akatsukami

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Joined: 03 Oct 2009
Posts: 1754
Location: Bloomington, IL

PostPosted: Mon Oct 18, 2010 11:30 pm    Post subject:
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Get the EBCDIC ranges of the permitted characters; check each character in the purported DSN for these values (I'm not a COBOL programmer, but surely it has built-in functions like VERIFY, yes?).
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dick scherrer

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Joined: 23 Nov 2006
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Location: Inside the Matrix

PostPosted: Mon Oct 18, 2010 11:39 pm    Post subject:
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Hello,

You might consider defining a 1-byte working-storage field that has an 88-level that includes all of the valid values for your process.

Then compare each input byte against this (in a loop using reference modification, indexing, or subscripting). . .
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GuyC

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Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Tue Oct 19, 2010 1:00 pm    Post subject:
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http://ibmmainframes.com/viewtopic.php?t=49281&highlight=
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