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ROPE Language Reference - "isascii"

"isascii" pops a single string off the stack and checks whether every character it contains is is a 7-bit unsigned char value that fits into the ASCII character set.

As a special case: if the string is empty, the return is 0.

Example:

 "Hello" isascii println        # -- prints: 1
 isascii( "ABC" "DEF" ) println # -- error! too many arguments
 239 isascii println            # -- error! not a string

See Also

isalnum, isalpha, iscntrl, isdigit, iseoln, isgraph, islower, isprint, ispunct, isspace, isupper, isxdigit

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