Module char_class

Module char_class 

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Utility functions to recognize char class of byte value.

Functionsยง

alpha
Recognises an alphabetic character, a-zA-Z.
alphanum
Recognises an alphanumeric character, a-zA-Z0-9.
digit
Recognises a decimal digit, 0-9.
hex_digit
Recognises a hexadecimal digit, 0-9a-fA-F.
multispace
Recognises a space, tab, line feed, or carriage return.
oct_digit
Recognises an octal digit, 0-7.
space
Recognises a space or tab.