instiki/vendor/plugins/HTML5lib/lib/html5lib/treebuilders/rexml.rb

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require 'html5lib/treebuilders/base'
require 'rexml/document'
require 'forwardable'
module HTML5lib
module TreeBuilders
module REXMLTree
class Node < Base::Node
extend Forwardable
def_delegators :@rxobj, :name, :attributes
attr_accessor :rxobj
def initialize name
super name
@rxobj = self.class.rxclass.new name
end
def appendChild node
if node.kind_of? TextNode and
childNodes.length>0 and childNodes[-1].kind_of? TextNode
childNodes[-1].rxobj.value =
childNodes[-1].rxobj.to_s + node.rxobj.to_s
childNodes[-1].rxobj.raw = true
else
childNodes.push node
rxobj.add node.rxobj
end
node.parent = self
end
def removeChild node
childNodes.delete node
rxobj.delete node.rxobj
node.parent = nil
end
def insertText data, before=nil
if before
insertBefore TextNode.new(data), before
else
appendChild TextNode.new(data)
end
end
def insertBefore node, refNode
index = childNodes.index(refNode)
if node.kind_of? TextNode and index>0 and
childNodes[index-1].kind_of? TextNode
childNodes[index-1].rxobj.value =
childNodes[index-1].rxobj.to_s + node.rxobj.to_s
childNodes[index-1].rxobj.raw = true
else
childNodes.insert index, node
end
end
def hasContent
return (childNodes.length > 0)
end
end
class Element < Node
def self.rxclass
REXML::Element
end
def initialize name
super name
end
def cloneNode
newNode = self.class.new name
attributes.each {|name,value| newNode.attributes[name] = value}
newNode
end
def attributes= value
value.each {|name,value| rxobj.attributes[name]=value}
end
def printTree indent=0
tree = "\n|#{' ' * indent}<#{name}>"
indent += 2
for name, value in attributes
next if name == 'xmlns'
tree += "\n|#{' ' * indent}#{name}=\"#{value}\""
end
for child in childNodes
tree += child.printTree(indent)
end
return tree
end
end
class Document < Node
def self.rxclass
REXML::Document
end
def initialize
super nil
end
def appendChild node
if node.kind_of? Element and node.name == 'html'
node.rxobj.add_namespace('http://www.w3.org/1999/xhtml')
end
super node
end
def printTree indent=0
tree = "#document"
for child in childNodes
tree += child.printTree(indent + 2)
end
return tree
end
end
class DocumentType < Node
def self.rxclass
REXML::DocType
end
def printTree indent=0
"\n|#{' ' * indent}<!DOCTYPE #{name}>"
end
end
class DocumentFragment < Element
def initialize
super nil
end
def printTree indent=0
tree = ""
for child in childNodes
tree += child.printTree(indent+2)
end
return tree
end
end
class TextNode < Node
def initialize data
raw=data.gsub('&','&amp;').gsub('<','&lt;').gsub('>','&gt;')
@rxobj = REXML::Text.new(raw, true, nil, true)
end
def printTree indent=0
"\n|#{' ' * indent}\"#{rxobj.value}\""
end
end
class CommentNode < Node
def self.rxclass
REXML::Comment
end
def printTree indent=0
"\n|#{' ' * indent}<!-- #{rxobj.string} -->"
end
end
class TreeBuilder < Base::TreeBuilder
def initialize
@documentClass = Document
@doctypeClass = DocumentType
@elementClass = Element
@commentClass = CommentNode
@fragmentClass = DocumentFragment
end
def testSerializer node
node.printTree()
end
def getDocument
@document.rxobj
end
def getFragment
@document = super
return @document.rxobj.children
end
end
end
end
end