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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.

Lianja

llSuccess = .F.

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

loGzip = createobject("CkGzip")
loSb = createobject("CkStringBuilder")
loBd = createobject("CkBinData")

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

// Compress the text using UTF-8 encoding:
llSuccess = loGzip.CompressSb(loSb,"utf-8",loBd)
if (llSuccess = .F.) then
    ? loGzip.LastErrorText
    release loGzip
    release loSb
    release loBd
    return
endif

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

// (Optional) Save to a .gz file:
llSuccess = loBd.WriteFile("text.gz")
if (llSuccess = .F.) then
    ? loBd.LastErrorText
    release loGzip
    release loSb
    release loBd
    return
endif

? "Gzip file written to text.gz"


release loGzip
release loSb
release loBd