So vendion really wanted to write ...

Well, just another speculation :)

The OP said in the comment "...testing the input for valid alphanumeric characters".  What you're suggesting would remove all whitespace if there's nothing but whitespace in the string.

In reply to Re^3: Returning and passing data to and from subroutines by almut
in thread Returning and passing data to and from subroutines by vendion

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