_DEFLATE$

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The _DEFLATE$ function compresses a string.


Syntax

result$ = _DEFLATE$(stringToCompress$)


Description

  • result$ will contain the compressed version of stringToCompress$.
  • To decompress the resulting string, use _INFLATE$.


Availability

  • Version 1.4 and up.


Examples

Example 1: Compressing a long string of text.

a$ = "The quick brown fox jumps over the lazy dog. "
PRINT "Original string (a$): "; a$
FOR i = 1 TO 15
    a$ = a$ + a$
NEXT

PRINT "After concatenating it into itself several times, LEN(a$) ="; LEN(a$)

b$ = _DEFLATE$(a$)
PRINT "After using _DEFLATE$ to compress it, LEN ="; LEN(b$)
PRINT USING "(compressed size is #.###% of the original)"; ((LEN(b$) * 100) / LEN(a$))
c$ = _INFLATE$(b$)
PRINT "After using _INFLATE$ to decompress it, LEN ="; LEN(c$)
 
Original string (a$): The quick brown fox jumps over the lazy dog
After concatenating it into itself several times, LEN(a$) = 1474560
After using _DEFLATE$ to compress it, LEN = 4335
(compressed size is 0.295% of the original)
After using _INFLATE$ to decompress it, LEN = 1474560


See also



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