Contents

#!/usr/bin/ruby
#
#	connection.rb - this file contains the class declarations for the
#	LinkParser::Connection class.
#
# == Synopsis
#
#
# == Rcsid
#
# $Id: connection.rb,v 1.3 2003/06/08 03:53:27 stillflame Exp $
#
# == Authors
#
#	Martin Chase <[e-mail]>
#
#:include: COPYRIGHT
#
#---
#
# Please see the file COPYRIGHT for licensing details.
#

class LinkParser
	class Connection
		include Comparable

		def initialize( conn1, conn2, lword, rword )
			raise( ParseError::new( "A connection cannot be formed between two words that do not match: %s and %s" %
								   [ conn1, conn2 ]) ) unless
				conn1.match(conn2)
			@name, @subName = conn1.generalize(conn2)
			@lword = lword
			@rword = rword
			@length = rword.position - lword.position
		end

		# the major name of the link
		attr_reader :name

		# the minor name of the link
		attr_reader :subName

		# the index of the word connected to this link on the left
		attr_reader :lword

		# the index of the word connected to this link on the right
		attr_reader :rword

		# the number of words spanned by this connection
		attr_reader :length

		# Hash on the important part - the name and subname.
 		def hash 
 			[@name, @subName].hash
 		end

		# Provide a consistent basis for sorting connections within a linkage to
		# allow two linkages to be compared.
		def <=>(other)
			pos = self.lword.position <=> other.lword.position
			return pos if pos.nonzero?
			len = self.length <=> other.length
			return len if len.nonzero?
			return self.to_s <=> other.to_s
		end

		# Equality based only on the name and subname.
		def eql?(o)
			@name == o.name &&
				@subName == o.subName &&
				@length == o.length
		end

		# Stringification delegated to the @general connector.
		def to_s 
			@name + @subName
		end

	end # class Connection
end # class LinkParser

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rwdeliza-0.03	lib/linkparser/connection.rb
rwdeliza-0.05	lib/linkparser/connection.rb