Need help in creating regular expression for prxchange feed

[yashpande]

Hi,

I have below values in datset


Or
OR-
A OR B
AND+
and
Or-
ELSE
1ELSE

WHAT I want is out put as below



OR-
AND+
Or-
1ELSE

So Basically if there is any digit or expression just immediately after SAS reserved keywords then it should be selected and this needs to be done using Prxchange regular expression as then it would be feed off to another third-party tool hence a prxchange regex is must

I am completely out of ideas as I haven't used regex before

Any help is really appreciated

[Ksharp]

data have;
input x $20.;
cards;
Or
OR-
A OR B
AND+
and
Or-
ELSE
1ELSE
;

data want;
 set have;
 want=prxchange('s/^[a-z]+$//i',-1,compress(x));
run;