UniBasic Commands Reference - Rocket Software

CHAR
Syntax
CHAR(expr)
Description
The UniBasic CHAR function changes a numeric expression to its ASCII (American
Standard Code for Information Interchange) character string equivalent. expr can be
a constant, variable, numeric function, or any combination of these. expr must
evaluate to a positive number from 0 to 255 (the range of ASCII character codes).
CHAR supports multibyte languages.
Not all ASCII codes are printable. Some represent terminal controls, and others are
reserved for special uses. For more information about ASCII character codes, see
Appendix A, “ASCII Character Codes.”
Tip: Use @variables to represent UniData delimiters and the null value. IBM
recommends that you not use the UniBasic functions CHAR or CHARS to insert these
variables because the ASCII code that represents it varies with language group.
Examples
In the following example, the program segment assigns the ASCII string equivalent
of the numeric expression VAL to the variable VSTRING. The final numeric value of
the argument is 90, so VSTRING becomes Z, the character equivalent of 90 in ASCII
code.
VAL=90
VSTRING=CHAR(VAL)
In the next example, the program statement sends the ASCII code 12 to the current
print device. In ASCII, this is a form feed.
PRINT CHAR(12)
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