How to check...

[Neil Hodgson]

    Lad:

 > How can I  check that a string does NOT contain NON English characters?

    It depends on how you define the set of English characters which is 
as much a matter of opinion or authority as fact. The following may be 
regarded as English despite containing 9 (8 unique) non-ASCII characters:
    The €200 encyclopædia defines the “coördinates” in ¼ ångströms.

    Neil