42 lines
1.0 KiB
Ruby
42 lines
1.0 KiB
Ruby
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module CodeRay
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# A simplified interface to the gzip library +zlib+ (from the Ruby Standard Library.)
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module GZip
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require 'zlib'
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# The default zipping level. 7 zips good and fast.
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DEFAULT_GZIP_LEVEL = 7
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# Unzips the given string +s+.
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#
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# Example:
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# require 'gzip_simple'
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# print GZip.gunzip(File.read('adresses.gz'))
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def GZip.gunzip s
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Zlib::Inflate.inflate s
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end
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# Zips the given string +s+.
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#
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# Example:
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# require 'gzip_simple'
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# File.open('adresses.gz', 'w') do |file
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# file.write GZip.gzip('Mum: 0123 456 789', 9)
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# end
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#
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# If you provide a +level+, you can control how strong
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# the string is compressed:
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# - 0: no compression, only convert to gzip format
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# - 1: compress fast
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# - 7: compress more, but still fast (default)
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# - 8: compress more, slower
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# - 9: compress best, very slow
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def GZip.gzip s, level = DEFAULT_GZIP_LEVEL
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Zlib::Deflate.new(level).deflate s, Zlib::FINISH
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end
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end
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end
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