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# $Id: libxml.rb,v 1.1 2006/04/17 13:30:22 roscopeco Exp $
# Please see the LICENSE file for copyright and distribution information
require 'xml/libxml_so'
class XML::Node::Set
def empty? #:nodoc:
self.length <= 0
end
def first #:nodoc:
self.each { |n| return n }
end
end
class XML::Document
include Enumerable
# maybe, maybe not...
def each(&blk) #:nodoc:
find('//*').each(&blk)
end
end
class XML::Node::Set
# inefficient, but maybe can find a way to cache the
# ary and dump on change?
def [](i, count = nil) #:nodoc:
if count
to_a[i,count]
else
to_a[i]
end
end
def to_s #:nodoc:
to_a.to_s
end
end
module XML::SiblingEnum #:nodoc:all
private
# Iterates nodes and attributes
def siblings(node, &blk)
if n = node
loop do
blk.call(n)
break unless n = n.next
end
end
end
end
class XML::Node
include XML::SiblingEnum
include Enumerable
include Comparable
# maybe these don't belong on all nodes...
def each_child(&blk) #:nodoc:
siblings(child, &blk)
end
def each_attr(&blk) #:nodoc:
siblings(properties, &blk)
end
# all siblings INCLUDING self
def each_sibling(&blk) #:nodoc:
siblings(self, &blk)
end
# I guess this is what you'd expect?
alias :each :each_child
def to_a #:nodoc:
inject([]) { |ary,n| ary << n }
end
def <=>(other) #:nodoc:
to_s <=> other.to_s
end
end
class XML::Attr
include XML::SiblingEnum
include Enumerable
def each_sibling(&blk) #:nodoc:
siblings(self,&blk)
end
alias :each_attr :each_sibling
alias :each :each_sibling
def to_h #:nodoc:
inject({}) do |h,a| h[a.name] = a.value end
end
def to_a #:nodoc:
inject([]) do |ary,a| ary << [a.name, a.value] end
end
def to_s #:nodoc:
"#{name} = #{value}"
end
end
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