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Class: REXML::XMLDecl

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Child
Instance Chain:
self, Encoding, Child, Node
Inherits: REXML::Child
Defined in: lib/rexml/xmldecl.rb

Overview

NEEDS DOCUMENTATION

Constant Summary

Class Method Summary

Child - Inherited

.new

Constructor.

Instance Attribute Summary

Encoding - Included

#encoding

ID —> Encoding name.
#encoding=

Child - Inherited

#next_sibling

Alias for Node#next_sibling_node.
#next_sibling=

Sets the next sibling of this child.
#parent

The Parent of this object.
#parent=

Sets the parent of this child to the supplied argument.
#previous_sibling

Alias for Node#previous_sibling_node.
#previous_sibling=

Sets the previous sibling of this child.

Node - Included

#parent?

Instance Method Summary

Encoding - Included

#decode, #encode, #find_encoding

Child - Inherited

#bytes

This doesn’t yet handle encodings.
#document
Returns

the document this child belongs to, or nil if this child belongs to no document.
#remove

Removes this child from the parent.
#replace_with

Replaces this object with another object.

Node - Included

#each_recursive

Visit all subnodes of self recursively.
#find_first_recursive

Find (and return) first subnode (recursively) for which the block evaluates to true.
#indent,
#index_in_parent

Returns the position that self holds in its parent’s array, indexed from 1.
#next_sibling_node, #previous_sibling_node,
#to_s
indent

Constructor Details

.new(version = DEFAULT_VERSION, encoding = nil, standalone = nil) ⇒ XMLDecl

[ GitHub ] 

  


# File 'lib/rexml/xmldecl.rb', line 20



def initialize(version=DEFAULT_VERSION, encoding=nil, standalone=nil)
  @writethis = true
  @writeencoding = !encoding.nil?
  if version.kind_of? XMLDecl
    super()
    @version = version.version
    self.encoding = version.encoding
    @writeencoding = version.writeencoding
    @standalone = version.standalone
  else
    super()
    @version = version
    self.encoding = encoding
    @standalone = standalone
  end
  @version = DEFAULT_VERSION if @version.nil?
end


  







Class Method Details



  

    .default  
  



  

    

Only use this if you do not want the XML declaration to be written; this object is ignored by the XML writer.  Otherwise, instantiate your own XMLDecl and add it to the document.



Note that XML 1.1 documents must include an XML declaration


  



  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 91



def XMLDecl.default
  rv = XMLDecl.new( "1.0" )
  rv.nowrite
  rv
end


  







Instance Attribute Details



  

    #encoding=(enc)   (writeonly)
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 75



def encoding=( enc )
  if enc.nil?
    self.old_enc = "UTF-8"
    @writeencoding = false
  else
    self.old_enc = enc
    @writeencoding = true
  end
  self.dowrite
end


  








  

    #stand_alone?   (readonly)
  



  

    

Alias for #standalone.


  



  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 72



alias :stand_alone? :standalone


  








  

    #standalone   (rw)
    Also known as: #stand_alone?
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 17



attr_accessor :version, :standalone


  








  

    #version   (rw)
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 17



attr_accessor :version, :standalone


  








  

    #writeencoding   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 18



attr_reader :writeencoding, :writethis


  








  

    #writethis   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 18



attr_reader :writeencoding, :writethis


  







Instance Method Details



  

    #==(other)  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 55



def ==( other )
  other.kind_of?(XMLDecl) and
  other.version == @version and
  other.encoding == self.encoding and
  other.standalone == @standalone
end


  








  

    #clone  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 38



def clone
  XMLDecl.new(self)
end


  








  

    #content(enc)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 110



def content(enc)
  context = nil
  context = parent.context if parent
  if context and context[:prologue_quote] == :quote
    quote = "\""
  else
    quote = "'"
  end

  rv = "version=#{quote}#{@version}#{quote}"
  if @writeencoding or enc !~ /\Autf-8\z/i
    rv << " encoding=#{quote}#{enc}#{quote}"
  end
  if @standalone
    rv << " standalone=#{quote}#{@standalone}#{quote}"
  end
  rv
end


  








  

    #dowrite  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 101



def dowrite
  @writethis = true
end


  








  

    #inspect  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 105



def inspect
  "#{START} ... #{STOP}"
end


  








  

    #node_type  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 68



def node_type
  :xmldecl
end


  








  

    #nowrite  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 97



def nowrite
  @writethis = false
end


  








  

    #old_enc=  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 73



alias :old_enc= :encoding=


  








  

    #write(writer, indent = -1,, transitive = false, ie_hack = false)  
  



  

    
indent



Ignored.  There must be no whitespace before an XML declaration


transitive



Ignored


ie_hack



Ignored




  



  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 48



def write(writer, indent=-1, transitive=false, ie_hack=false)
  return nil unless @writethis or writer.kind_of? Output
  writer << START
  writer << " #{content encoding}"
  writer << STOP
end


  








  

    #xmldecl(version, encoding, standalone)  
  

  [ GitHub ]


  

  


# File 'lib/rexml/xmldecl.rb', line 62



def xmldecl version, encoding, standalone
  @version = version
  self.encoding = encoding
  @standalone = standalone
end