Try to find a 0, an x, and at least one hexadecimal:
str:find("^0x%x+$")
wil return 1 when OK, nil if not
(Avoids the string copy that string:match does)
--
Oliver
Am 27.10.2014 um 16:54 schrieb Jain,
Punit:
Hi All,
How can I check whether a string is a
hexadecimal number or not? E.g. “0x123” is a hex string, but
“123” and “xyz” are not.
Thanks,
Punit
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