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ROPE Language Reference - "isgraph"

"isgraph" pops a single string off the stack and checks whether every character it contains is an ASCII printable character other than a space (characters 0x21 to 0x7E). If so: 1 (true) is pushed back onto the stack, otherwise 0 is pushed back.

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

Note: isprint is identical to isgraph, except that the space character is included.

Example:

 "Hello boyo" isgraph println   # -- prints: 1
 isgraph( "Pingu\n" ) println   # -- prints: 0
 isgraph( "  " "DEF" )  println # -- error! too many arguments
 239 isgraph println            # -- error! not a string

See Also

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

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