SAS strip function doesn't work

[cm292]

data test;
     char=strip('ALTEPLASE INJECTION 2 MG  ');
run;

After running the above program, the two trailing spaces aren't trimmed. Please instruct.

[SASKiwi]

The STRIP function is only relevant if you are adding text to the right. Try this:

data test;
     char=strip('ALTEPLASE INJECTION 2 MG  ') !! 'Extra text';
run;

If you don't add anything then SAS pads character variables with blanks up to the length the CHAR field is defined as when storing in the dataset TEST.

[Kurt_Bremser · Accepted solution]

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@cm292 wrote:

data test;
     char=strip('ALTEPLASE INJECTION 2 MG  ');
run;

After running the above program, the two trailing spaces aren't trimmed. Please instruct.

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What happens is this:

When SAS encounters such a character assignment, and the length of the receiving variable has not been defined yet, then the length of the source is used, and since character variables are always of fixed length and padded with blanks, the result is identical to the initial string.

Strip in such a case only makes sense when you need to remove leading blanks.