(Ruby) Compress String Feed to Base64

This example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed data in base64.

The purpose is to demonstrate the BeginCompressStringENC, MoreCompressStringENC, and EndCompressStringENC methods.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

sbCompressedBase64 = Chilkat::CkStringBuilder.new()

compress = Chilkat::CkCompression.new()
compress.put_Algorithm("deflate")
compress.put_Charset("utf-8")
compress.put_EncodingMode("base64")

sbIndex = Chilkat::CkStringBuilder.new()

for i in 0 .. 24
    # Note: It is possible (and normal) for a BeginCompress* or MoreCompress* method to return
    # an empty string (or 0 bytes).  When this happens, the input data is not lost.  It will be flushed
    # in a subsequent call.
    sbIndex.Clear()
    sbIndex.AppendInt(i)
    if (i == 0)
        sbCompressedBase64.Append(compress.beginCompressStringENC(sbIndex.getAsString()))
    else
        sbCompressedBase64.Append(compress.moreCompressStringENC(sbIndex.getAsString()))
    end

    sbCompressedBase64.Append(compress.moreCompressStringENC(": This is a line of data to be compressed...\r\n"))
end

# Flush any remaining output.
sbCompressedBase64.Append(compress.endCompressStringENC())

print "The base64 encoded compressed text:" + "\n";
print sbCompressedBase64.getAsString() + "\n";

# Now decompress in one call:
originalText = compress.decompressStringENC(sbCompressedBase64.getAsString())
print originalText + "\n";