Class: XML::DOM::DOMBuilder

Inherits:
ParserNS show all
Defined in:
lib/xml/dom2/dombuilder.rb

Overview

Class XML::DOM::DOMBuilder

superclass

XML::Parser

Constant Summary collapse

NSSEP = 
'!'

Constants inherited from ParserNS

ParserNS::EVENT_HANDLERS

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from ParserNS

#initialize, #method_missing, #setReturnNSTriplet

Constructor Details

This class inherits a constructor from XML::ParserNS

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class XML::ParserNS

Instance Attribute Details

#createCDATASection ⇒ Object

Returns the value of attribute createCDATASection.



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# File 'lib/xml/dom2/dombuilder.rb', line 34

def createCDATASection
  @createCDATASection
end

#createEntityReference ⇒ Object

Returns the value of attribute createEntityReference.



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# File 'lib/xml/dom2/dombuilder.rb', line 35

def createEntityReference
  @createEntityReference
end

Class Method Details

.new(document = nil, *args) ⇒ Object

new(document = nil, encoding = nil) new(document = nil, parser, context, encoding = nil)



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# File 'lib/xml/dom2/dombuilder.rb', line 51

def self.new(document = nil, *args)
  document ||= Document.new
  if args[0].is_a?(self.class)
    ret = super(*args)
    ret.__initialize__(document, true)
  else
    ret = super(args[0], NSSEP)
    ret.__initialize__(document, false)
  end
  ret.setReturnNSTriplet(true)
  ret
end

Instance Method Details

#__initialize__(document, external = false) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 64

def __initialize__(document, external = false)
  @tree = nil
  @entityResolver = DOMEntityResolverImpl.new
  @createCDATASection = false
  @createEntityReference = false
  @document = document
  @external = external
end

#character(data) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 177

def character(data)
##        if @cdata_f
    @cdata_buf << data
##        else
##          cdata = @document.createTextNode(data)
##          @current.appendChild(cdata)
##        end
end

#comment(data) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 236

def comment(data)
  text
  comment = @document.createComment(data)
  @current.appendChild(comment)
end

#endCdata ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 228

def endCdata
  return unless @createCDATASection
  cdata = @document.createCDATASection(@cdata_buf)
  @current.appendChild(cdata)
  @cdata_buf = ''
  @cdata_f = false
end

#endElement(name) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 172

def endElement(name)
  text
  @current = @current.parentNode
end

#entityResolver ⇒ Object

DOM3? 


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# File 'lib/xml/dom2/dombuilder.rb', line 268

def entityResolver; @entityResolver; end

#entityResolver=(resolver) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/xml/dom2/dombuilder.rb', line 269

def entityResolver=(resolver)
  raise ArgumentError, 'invalid value for DOMEntityResolver' unless
    resolver.is_a?(DOMEntityResolver)
  @entityResolver = resolver
end

#externalEntityRef(context, base, systemId, publicId) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 192

def externalEntityRef(context, base, systemId, publicId)
  text
  tree = nil
  if @parse_ext
    extp = self.class.new(@document, self, context)
    extp.setBase(base) if base
    file = systemId
    if systemId !~ /^\/|^\.|^http:|^ftp:/ && !base.nil? # /
      file = base + systemId
    end
    begin
      xml = @entityResolver.resolveEntity(nil, file).byteStream.read
      tree = extp.parse(xml, @parse_ext)
    rescue XML::Parser::Error
      raise XML::Parser::Error.new("#{systemId}(#{extp.line}): #{$!}")
    rescue Errno::ENOENT
      raise
    end
    extp.done
  end
  if @createEntityReference
    entref = @document.createEntityReference(context)
    @current.appendChild(entref)
    entref.appendChild(tree) if tree
  else
    @current.appendChild(tree) if tree
  end
end

#parse(xml, parse_ext = false) ⇒ Object

Parse

doctree = parser.parse(xml, parse_ext)
  xml:       string or stream of XML contents
  parse_ext: flag whether parse external entities or not



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# File 'lib/xml/dom2/dombuilder.rb', line 90

def parse(xml, parse_ext = false)
  if @external
    @tree = @document.createDocumentFragment
  else
    @tree = @document
  end
  @parse_ext = parse_ext
  @current = @tree
  @inDocDecl = 0
  @decl = ""
  @inDecl = 0
  @idRest = 0
  @extID = nil
  @cdata_f = false
  @cdata_buf = ''
  @nsdecl = []
  super(xml)
  @tree
end

#parseURI(uri) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 110

def parseURI(uri)
  uri =~ /^((\w+):\/\/.+\/).*$/ ## /
  setBase($1) if $1
  xml = @entityResolver.resolveEntity(nil, uri).byteStream.read
  parse(xml, true)
end

#processingInstruction(name, data) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 186

def processingInstruction(name, data)
  text
  pi = @document.createProcessingInstruction(name, data)
  @current.appendChild(pi)
end

#startCdata ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 221

def startCdata
  return unless @createCDATASection
  text
  @cdata_f = true
##        @cdata_buf = ''
end

#startDoctypeDecl(name, pubid, sysid, internal_subset) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 242

def startDoctypeDecl(name, pubid, sysid, internal_subset)
  doctype = @document.implementation.createDocumentType(name,
                                                        pubid, sysid)
  @current.appendChild(doctype)
end

#startElement(name, data) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 124

def startElement(name, data)
  text
  if !name.index(NSSEP)
    qname = name
    uri = nil
  else
    uri, localname, prefix = name.split(NSSEP)
    if prefix.nil?
      qname = localname
    else
      qname = prefix + ':' + localname
    end
  end
  elem = @document.createElementNS(uri, qname)

  @nsdecl.each do |nsdecl|
    elem.setAttributeNode(nsdecl)
  end
  @nsdecl = []

  attr = {}
  specified = getSpecifiedAttributes
  ## not implemented
  ## elem.idAttribute = getIdAttribute

  data.each do |key, value|
    if !key.index(NSSEP)
      qname = key
      uri = nil
    else
      uri, localname, prefix = key.split(NSSEP)
      if prefix.nil?
        qname = localname
      else
        qname = prefix + ':' + localname
      end
    end
    attr = @document.createAttributeNS(uri, qname)
    attr.appendChild(@document.createTextNode(value))
##          attr.specified = specified[key]
    attr.specified = specified.include?(key)
    elem.setAttributeNode(attr)
  end

  @current.appendChild(elem)
  @current = elem
end

#startNamespaceDecl(prefix, uri) ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 248

def startNamespaceDecl(prefix, uri)
  qname = 'xmlns'
  if prefix
    qname << ':' + prefix
  end
  attr = @document.createAttributeNS(nil, qname)
  attr.appendChild(@document.createTextNode(uri))
  attr.specified = true
  @nsdecl << attr
end

#text ⇒ Object 



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# File 'lib/xml/dom2/dombuilder.rb', line 117

def text
  return if @cdata_buf == ''
  textnode = @document.createTextNode(@cdata_buf)
  @current.appendChild(textnode)
  @cdata_buf = ''
end