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#--
# HTTPVersion.rb -- presentation of HTTP version
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: httpversion.rb,v 1.5 2002/09/21 12:23:37 gotoyuzo Exp $
module WEBrick
##
# Represents an HTTP protocol version
class HTTPVersion
include Comparable
##
# The major protocol version number
attr_accessor :major
##
# The minor protocol version number
attr_accessor :minor
##
# Converts +version+ into an HTTPVersion
def self.convert(version)
version.is_a?(self) ? version : new(version)
end
##
# Creates a new HTTPVersion from +version+.
def initialize(version)
case version
when HTTPVersion
@major, @minor = version.major, version.minor
when String
if /^(\d+)\.(\d+)$/ =~ version
@major, @minor = $1.to_i, $2.to_i
end
end
if @major.nil? || @minor.nil?
raise ArgumentError,
format("cannot convert %s into %s", version.class, self.class)
end
end
##
# Compares this version with +other+ according to the HTTP specification
# rules.
def <=>(other)
unless other.is_a?(self.class)
other = self.class.new(other)
end
if (ret = @major <=> other.major) == 0
return @minor <=> other.minor
end
return ret
end
##
# The HTTP version as show in the HTTP request and response. For example,
# "1.1"
def to_s
format("%d.%d", @major, @minor)
end
end
end
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