anyMultibyteUTF8Characters: Check If a String Contains Multibyte UTF-8 characters...
Description
Check If a String Contains Multibyte UTF-8 characters
This function is used by tikzDevice to check if an incoming string contains
multibyte UTF-8 characters
The input encoding of string, if not specified
previously via Encoding or by this argument then a value of
"UTF-8" is assumed
Value
A boolean value
encoding
UTF-8
Details
This function searches through the characters in the given string, if any of
the characters in the string are more than one byte then the function
returns TRUE otherwise it returns FALSE.
The function will assume an input encoding of UTF-8 but will take any
specified encoding into account and will convert from the specified encoding
to UTF-8 before doing any checks