How to detect non-printable characters from updating a unicode-field from a form?

N

Nando

In the US ASCII table (0-255), non-printable (or control characters), could
be filtered by Asc(ch)>32. But what happens if the table is Unicode
(0-65,000) and somebody from another country (like in Asia), uses another
character set? How do I detect non-printable characters in general,
regardless of the current character set? I'm trying to catch illegal
characters, before updating the field.
 
D

Dennis

How would you even know which characters aren't printable? And why would you
care? You could probably check each character against its ASCII equivalent
(and stripping out 0-32), but anything above ASCII 32 should probably be left
alone.

JMHO - YMMV
 

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