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| require 'nokogiri' | |
| # \ | |
| # \ | |
| # \\ | |
| # \\ | |
| # >\/7 | |
| # _.-(6' \ | |
| # (=___._/` \ | |
| # ) \ | | |
| # / / | | |
| # / > / | |
| # j < _\ | |
| # _.-' : ``. | |
| # \ r=._\ `. | |
| # <`\\_ \ .`-. | |
| # \ r-7 `-. ._ ' . `\ | |
| # \`, `-.`7 7) ) | |
| # \/ \| \' / `-._ | |
| # || .' | |
| # cjr \\ ( | |
| # 10mar02 >\ > | |
| # ,.-' >.' | |
| # <.'_.'' | |
| # <' | |
| # adapted from https://gist.github.com/451544, added namespace "support" and fixed some | |
| # bugs | |
| module Nokogiri | |
| module XML | |
| class Node | |
| BLANK = /^[ \n]*$/ | |
| # Comparing with other node | |
| # - same name | |
| # - same attributes | |
| # - same namespaces | |
| # - order doesn't matter | |
| # - recursively through all children | |
| # This will allow to compare two documents (doc1.root =~ doc2.root) | |
| # Pass in a namespace_hash for testing. You can build one thusly: | |
| # h = {}; doc1.root.traverse {|e| h[e.namespace.prefix] = e.namespace.href if e && e.namespace } | |
| def =~(other, namespace_hash = nil) | |
| my_namespace_hash = {} | |
| other_namespace_hash = {} | |
| self.traverse {|e| my_namespace_hash[e.namespace.prefix] = e.namespace.href if e && e.namespace } | |
| other.traverse {|e| other_namespace_hash[e.namespace.prefix] = e.namespace.href if e && e.namespace } | |
| namespace_hash ||= my_namespace_hash | |
| my_namespace_hash == other_namespace_hash && match_nodes(other, namespace_hash) && other.match_nodes(self, namespace_hash) | |
| end | |
| def match_nodes(other, namespace_hash) | |
| self.traverse do |elem| | |
| xpath_without_index = elem.path.sub(/\[[0-9]+\]/,'') | |
| other_nodes = other.xpath(xpath_without_index, namespace_hash) | |
| return false if other_nodes.empty? | |
| # just compare highest level | |
| same_element = elem.element? && elem.match_element(other_nodes) | |
| same_text = elem.text? && elem.match_text(other_nodes) | |
| return false unless same_element || same_text | |
| end | |
| true | |
| end | |
| def match_element(other_nodes) | |
| other_nodes.any? do |node| | |
| ((namespace && namespace.href) == (node.namespace && node.namespace.href)) and | |
| name == node.name and | |
| match_attributes(node) | |
| end | |
| end | |
| # if both are blank, the number of spaces doesn't matter | |
| def match_text(other_nodes) | |
| other_nodes.first.text == text || ((other_nodes.first.text =~ BLANK && text =~ BLANK) == 0) | |
| end | |
| private | |
| # the compared node has same attributes as self | |
| def match_attributes(other) | |
| attributes.inject(true) do |memo,attr| | |
| memo && other.attributes.include?(attr[0]) && | |
| other.attributes[attr[0]].name == attr[1].name && | |
| other.attributes[attr[0]].value == attr[1].value | |
| end | |
| end | |
| end | |
| end | |
| end |
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