The ISPRINT function checks that an expression consists entirely of printable characters.
NOTE: This function is only available in jBASE 4.1 and later.
expression can return a result of any type. The ISPRINT function will then return TRUE (1) if the expression consists of entirely printable characters. The function will return FALSE (0) if any character in the expression is not printable.
When the ISPRINT function is used in International Mode the properties of each character are determined according to the Unicode Standard.