Xbase++

Compress Text from StringBuilder to Gzip (BinData Output)

See more Gzip Examples

This example demonstrates how to use the CompressSb method to compress text stored in a StringBuilder into Gzip format.

The text is first converted to its byte representation using the specified character set (in this case, UTF-8). These bytes are then compressed, and the resulting Gzip data is written to a BinData object in memory.

This approach is useful when working with dynamically generated text that you want to compress without first writing it to a file. The example also shows how the compressed data can optionally be saved to a .gz file.

Xbase++

LOCAL nSuccess
LOCAL oGzip
LOCAL oSb
LOCAL oBd

nSuccess := 0

//  This example demonstrates how to compress text contained in a StringBuilder
//  into Gzip format, storing the compressed result in a BinData object.

oGzip := CreateObject("Chilkat.Gzip")
oSb := CreateObject("Chilkat.StringBuilder")
oBd := CreateObject("Chilkat.BinData")

//  Add some text to the StringBuilder:
oSb:Append("The quick brown fox jumps over the lazy dog.")

//  Compress the text using UTF-8 encoding:
nSuccess := oGzip:CompressSb(oSb, "utf-8", oBd)
IF (nSuccess == 0)
    ? oGzip:LastErrorText
    oGzip:destroy()
    oSb:destroy()
    oBd:destroy()
    RETURN
ENDIF

//  The BinData now contains the Gzip-compressed bytes.
? "Compression successful."
? "Compressed size (bytes): " + Str(oBd:NumBytes)

//  (Optional) Save to a .gz file:
nSuccess := oBd:WriteFile("text.gz")
IF (nSuccess == 0)
    ? oBd:LastErrorText
    oGzip:destroy()
    oSb:destroy()
    oBd:destroy()
    RETURN
ENDIF

? "Gzip file written to text.gz"

oGzip:destroy()
oSb:destroy()
oBd:destroy()