Classic ASP

Compress Text from StringBuilder to Gzip (BinData Output)

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.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set gzip = Server.CreateObject("Chilkat.Gzip")
set sb = Server.CreateObject("Chilkat.StringBuilder")
set bd = Server.CreateObject("Chilkat.BinData")

' Add some text to the StringBuilder:
success = sb.Append("The quick brown fox jumps over the lazy dog.")

' Compress the text using UTF-8 encoding:
success = gzip.CompressSb(sb,"utf-8",bd)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( gzip.LastErrorText) & "</pre>"
    Response.End
End If

' The BinData now contains the Gzip-compressed bytes.
Response.Write "<pre>" & Server.HTMLEncode( "Compression successful.") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Compressed size (bytes): " & bd.NumBytes) & "</pre>"

' (Optional) Save to a .gz file:
success = bd.WriteFile("text.gz")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( bd.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Gzip file written to text.gz") & "</pre>"

%>
</body>
</html>