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Purpose |
Convert one or more ASCII
codes, ranges, and/or
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Syntax |
s$ = CHR$(expression
[,expression] [,...]) |
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Remarks |
CHR$ returns a string, each character of which represents the corresponding ASCII codes of the arguments. Single or multiple arguments may be specified, each of which may be a numeric character code expression, string expression, or numeric character code range. These argument types may be freely intermixed in a single CHR$ function. Numeric ASCII arguments must be in the range -1 through 255. CHR$(x& TO y&) returns a sequence of all characters from CHR$(x&) through CHR$(y&) inclusive, provided x& <= y&. If x& > y&, an empty string is returned. For example, CHR$(65 TO 70) returns "ABCDEF". The expanded CHR$ definition is intended to assist in the encoding of multi-byte strings, to avoid the need for concatenation operations. For example, the CHR$ function can be used to create COLLATE strings for the ARRAY SORT and ARRAY SCAN statements at run-time, and can be used to create string equates at compile time: $colstring = CHR$(0 TO 131, 97, 133 TO 255) The following lines are functionally equivalent, and return the same string result: a$ = CHR$("Line1", 13, 10, "Line2") a$ = "Line1" & CHR$(13) & CHR$(10) & "Line2" a$ = "Line1" & $CRLF & "Line2" CHR$ complements the ASC function, which returns the ASCII code of a nominated character in a string. In addition, CHR$ with a parameter value of -1 returns an empty string for that parameter. For example, CHR$(65, -1, 66) returns "AB". CHR$ is also handy for creating characters that are difficult to enter at the keyboard, such as international characters for text output, or control code sequences for printer output, etc. |
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See also |
ARRAY SCAN, ARRAY SORT, ASC function, ASC statement, NUL$, SPACE$, STRING$ |
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Example |
H$ = CHR$("a$=", $DQ, 33, $DQ+$DQ, 35 TO 39, 40, $DQ) |
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Result |
a$="!""#$%&'(" |