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ymnk/gist:1186724

Created September 1, 2011 17:36
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gistfile1.rb
require 'zlib'
dict = "hello"
str = "hello, hello!"
d = Zlib::Deflate.new
d.set_dictionary(dict)
comp_str = d.deflate(str)
comp_str << d.finish
i = Zlib::Inflate.new(Zlib::MAX_WBITS + 32)
i.set_dictionary(dict)
i << comp_str
uncomp_comp_str = i.finish
p uncomp_comp_str, str == uncomp_comp_str
Raw
gistfile2.rb
require 'zlib'
dict = "hello"
str = "hello, hello!"
d = Zlib::Deflate.new
d.set_dictionary(dict)
comp_str = d.deflate(str)
comp_str << d.finish
i = Zlib::Inflate.new(Zlib::MAX_WBITS + 32)
begin
i.inflate(comp_str)
rescue Zlib::NeedDict
end
i.set_dictionary(dict)
i << ""
uncomp_comp_str = i.finish
p uncomp_comp_str, str == uncomp_comp_str
Raw
gistfile3.rb
require 'zlib'
dict = "hello"
str = "hello, hello!"
d = Zlib::Deflate.new
d.set_dictionary(dict)
comp_str = d.deflate(str)
comp_str << d.finish
i = Zlib::Inflate.new(Zlib::MAX_WBITS + 32)
begin
i << comp_str.slice!(0, 9)
rescue Zlib::NeedDict
end
i.set_dictionary(dict)
i << comp_str
uncomp_comp_str = i.finish
p uncomp_comp_str, str == uncomp_comp_str
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