142 lines
2.8 KiB
Ruby
142 lines
2.8 KiB
Ruby
=begin
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XSD4R - XML Schema Namespace library
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Copyright (C) 2000, 2001, 2002, 2003 NAKAMURA, Hiroshi.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PRATICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 675 Mass
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Ave, Cambridge, MA 02139, USA.
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=end
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require 'xsd/datatypes'
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module XSD
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class NS
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class Assigner
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def initialize
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@count = 0
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end
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def assign(ns)
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@count += 1
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"n#{ @count }"
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end
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end
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attr_reader :default_namespace
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class FormatError < Error; end
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public
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def initialize(tag2ns = {})
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@tag2ns = tag2ns
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@assigner = nil
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@ns2tag = {}
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@tag2ns.each do |tag, ns|
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@ns2tag[ns] = tag
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end
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@default_namespace = nil
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end
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def assign(ns, tag = nil)
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if (tag == '')
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@default_namespace = ns
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tag
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else
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@assigner ||= Assigner.new
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tag ||= @assigner.assign(ns)
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@ns2tag[ns] = tag
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@tag2ns[tag] = ns
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tag
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end
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end
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def assigned?(ns)
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@ns2tag.key?(ns)
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end
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def assigned_tag?(tag)
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@tag2ns.key?(tag)
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end
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def clone_ns
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cloned = NS.new(@tag2ns.dup)
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cloned.assigner = @assigner
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cloned.assign(@default_namespace, '') if @default_namespace
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cloned
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end
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def name(name)
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if (name.namespace == @default_namespace)
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name.name
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elsif @ns2tag.key?(name.namespace)
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@ns2tag[name.namespace] + ':' << name.name
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else
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raise FormatError.new('Namespace: ' << name.namespace << ' not defined yet.')
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end
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end
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def compare(ns, name, rhs)
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if (ns == @default_namespace)
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return true if (name == rhs)
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end
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@tag2ns.each do |assigned_tag, assigned_ns|
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if assigned_ns == ns && "#{ assigned_tag }:#{ name }" == rhs
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return true
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end
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end
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false
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end
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# $1 and $2 are necessary.
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ParseRegexp = Regexp.new('^([^:]+)(?::(.+))?$')
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def parse(elem)
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ns = nil
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name = nil
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ParseRegexp =~ elem
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if $2
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ns = @tag2ns[$1]
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name = $2
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if !ns
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raise FormatError.new('Unknown namespace qualifier: ' << $1)
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end
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elsif $1
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ns = @default_namespace
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name = $1
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end
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if !name
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raise FormatError.new("Illegal element format: #{ elem }")
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end
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XSD::QName.new(ns, name)
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end
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def each_ns
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@ns2tag.each do |ns, tag|
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yield(ns, tag)
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end
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end
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protected
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def assigner=(assigner)
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@assigner = assigner
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end
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end
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end
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