what is meant by "C 3 P'=' '*' PREV"

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what is meant by "C 3 P'=' '*' PREV"

Postby Farhaan4mf » Tue Apr 15, 2014 12:51 pm

I need to modify one existing REXX edit macro.
  "C 3 P'=' '*' PREV"                     

I can understand that its asking to change column 3 value with '*' . But what does it mean by P'=' .
Actually I need to remove this line, because I DO NOT want to change the column3 value with * . But when I am deleting this particular line from my macro, the macro is going to infinite loop.

Moreover, how does the above code is different from below one
"ISREDIT CHANGE   P'=' '*' 3"
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Re: what is meant by "C 3 P'=' '*' PREV"

Postby Blackthorn » Tue Apr 15, 2014 2:59 pm

Have you read up on Picture Strings in the manual?
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Re: what is meant by "C 3 P'=' '*' PREV"

Postby dick scherrer » Tue Apr 15, 2014 7:14 pm


As Blcakthorn mentions, read about Picture Strings (which can be found in the Help for the CHANGE command).
Hope this helps,
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Re: what is meant by "C 3 P'=' '*' PREV"

Postby NicC » Tue Apr 15, 2014 7:38 pm

And FIND command
The problem I have is that people can explain things quickly but I can only comprehend slowly.
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