* lib/webrick: imported.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4130 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/webrick/httpversion.rb

@@ -0,0 +1,49 @@
+#
+# 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
+  class HTTPVersion
+    include Comparable
+
+    attr_accessor :major, :minor
+
+    def self.convert(version)
+      version.is_a?(self) ? version : new(version)
+    end
+
+    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
+
+    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
+
+    def to_s
+      format("%d.%d", @major, @minor)
+    end
+  end
+end