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module CodeRay
# =GZip Simple
#
# A simplified interface to the gzip library +zlib+ (from the Ruby Standard Library.)
#
# Author: murphy (mail to murphy rubychan de)
#
# Version: 0.2 (2005.may.28)
#
# ==Documentation
#
# See +GZip+ module and the +String+ extensions.
#
module GZip
require 'zlib'
# The default zipping level. 7 zips good and fast.
DEFAULT_GZIP_LEVEL = 7
# Unzips the given string +s+.
#
# Example:
# require 'gzip_simple'
# print GZip.gunzip(File.read('adresses.gz'))
def GZip.gunzip s
Zlib::Inflate.inflate s
end
# Zips the given string +s+.
#
# Example:
# require 'gzip_simple'
# File.open('adresses.gz', 'w') do |file
# file.write GZip.gzip('Mum: 0123 456 789', 9)
# end
#
# If you provide a +level+, you can control how strong
# the string is compressed:
# - 0: no compression, only convert to gzip format
# - 1: compress fast
# - 7: compress more, but still fast (default)
# - 8: compress more, slower
# - 9: compress best, very slow
def GZip.gzip s, level = DEFAULT_GZIP_LEVEL
Zlib::Deflate.new(level).deflate s, Zlib::FINISH
end
end
end
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