Find Special char in Rexx

gylbharat · Posted: Mon Jul 18, 2011 1:36 pm

Hi,

Can anyone please tell me how we can check in rexx if a string is having only alphanumeric characters and underscores?

Example.
The following strings are valid

Bill Woodger · Posted: Mon Jul 18, 2011 1:43 pm

First in each is AAAA, so is it valid or not? Also A12_1 appears in both.

dbzTHEdinosauer · Posted: Mon Jul 18, 2011 1:48 pm

if it is under ISREDIT MACRO, then use find/search command

if it is a REXX SCRIPT being executed and not an ISREDIT MACRO
you could do the same thing I did and look for commands like POS.

but as Bill said,
your example sucks.

enrico-sorichetti · Posted: Mon Jul 18, 2011 2:06 pm

read the manual and meditate on the VERIFY builtin

gylbharat · Posted: Mon Jul 18, 2011 2:28 pm

I am sorry...

NOT VAILD are

Bill Woodger · Posted: Mon Jul 18, 2011 2:36 pm

If you search the forum, you'll even find a working example of VERIFY from very recently.

gylbharat · Posted: Mon Jul 18, 2011 2:38 pm

Thanks enrico... VERIFY worked for me....

Nic Clouston · Posted: Tue Jul 19, 2011 1:03 am

Also try DATATYPE

gylbharat · Posted: Tue Jul 19, 2011 12:14 pm

Hi Nic,

I tried datatype but was was stuck in how to check it any of the other characters are present apart from valid ones (0-9,A-Z,_).

DATATYPE provides only a few options

either BooleanNo = DATATYPE( String , Option )
or CHARorNUM = DATATYPE( String )
Options:
A - Alphanumeric (A-Z,a-z,0-9) N - Valid Number
B - Binary only (0,1) U - Uppercase only (A-Z)
L - Lower case only(a-z) W - Whole Number
M -Mixed case (A-Z, a-z) X - Hexadecimal (0-9, A-E)
S - Valid REXX Symbol(A-Z,a-z, 0-9 ! ? _ .)

Bill Woodger · Posted: Tue Jul 19, 2011 12:27 pm

You could change all occurences of the underscore to an alpha, then do the alphanumeric. As long as you don't use the changed data for anything but the test.

I think the verify provides a more easily understood solution.

vasanthz · Posted: Tue Jul 19, 2011 12:39 pm