Date:         Thu, 29 Jun 2000 08:44:18 -0400
Reply-To:     "Fehd, Ronald J." <rjf2@CDC.GOV>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         "Fehd, Ronald J." <rjf2@CDC.GOV>
Subject:      feature: scan with negative numbers
Content-Type: text/plain; charset="iso-8859-1"

This feature of the scan function was discussed at PNWSUG.

I suppose one could use this in reading last word of a string
and not have to use reverse.

15   data test;
16   length Sub1 $ 1
17          Sub2 $ 1
18          Scn1 $ 1
19          Scn2 $ 1;
20   retain S 'abcdefgh'
21          W 'a b c d e f g h';
22   Sub1 = substr(S,1,1);
23   Sub2 = substr(S,-1,1);
24   Scn1 = scan(W,1);

25   Scn2 = scan(W,-1);

26   put _all_;
27   stop;
28   run;

NOTE: Invalid second argument to function SUBSTR at line 23 column 8.
Sub1=a Sub2=a Scn1=a Scn2=h S=abcdefgh W=a b c d e f g h _ERROR_=1 _N_=1
..........................^

Ron Fehd  the macro maven  CDC Atlanta GA USA RJF2@cdc.gov
---> cheerful provider of TESTED SAS code!*! <---
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