Parsing Registry.pol (Local Group Policy) / Get numeric ASCII values of characters in a string?

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This will filter out non-ascii chars:

Q: (concatenations of characters whose( exists (hexadecimal integer (it as hexadecimal) ) whose(it >= 32 AND it <= 126) of it ) of it) of ("abc%00";"%00123")
A: abc
A: 123
T: 0.266 ms

Related: Tip: Comparing really long REG_BINARY value (Sysmon Ruleset) - #2 by jgstew