Your function might be replaced by matching the character class for control characters, /\p{IsC}/ (unicode character class, just for fun). That doesn't have anything to do with whether a string contains packed data.

Neither does it have anything do do with whether a scalar is a string. Many text strings contain "\n" or "\t".

After Compline,
Zaxo

In reply to Re^2: Detecting packed data by Zaxo
in thread Detecting packed data by vx

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