Class: REXML::XMLDecl

Inherits:
Child show all
Includes:
Encoding
Defined in:
lib/rexml/xmldecl.rb

Overview

NEEDS DOCUMENTATION

Constant Summary collapse

DEFAULT_VERSION = 
"1.0"
DEFAULT_ENCODING = 
"UTF-8"
DEFAULT_STANDALONE = 
"no"
START = 
"<?xml"
STOP = 
"?>"

Instance Attribute Summary collapse

Attributes included from Encoding

#encoding

Attributes inherited from Child

#parent

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Encoding

#decode, #encode

Methods inherited from Child

#bytes, #document, #next_sibling=, #previous_sibling=, #remove, #replace_with

Methods included from Node

#each_recursive, #find_first_recursive, #indent, #index_in_parent, #next_sibling_node, #parent?, #previous_sibling_node, #to_s

Constructor Details

#initialize(version = DEFAULT_VERSION, encoding = nil, standalone = nil) ⇒ XMLDecl

Returns a new instance of XMLDecl.



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# 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
    @writethis = version.writethis
  else
    super()
    @version = version
    self.encoding = encoding
    @standalone = standalone
  end
  @version = DEFAULT_VERSION if @version.nil?
end

Instance Attribute Details

#standalone ⇒ Object Also known as: stand_alone?

Returns the value of attribute standalone



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

def standalone
  @standalone
end

#version ⇒ Object

Returns the value of attribute version



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

def version
  @version
end

#writeencoding ⇒ Object (readonly)

Returns the value of attribute writeencoding



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

def writeencoding
  @writeencoding
end

#writethis ⇒ Object (readonly)

Returns the value of attribute writethis



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

def writethis
  @writethis
end

Class Method Details

.default ⇒ Object

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



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# File 'lib/rexml/xmldecl.rb', line 92

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

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 56

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

#clone ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 39

def clone
  XMLDecl.new(self)
end

#dowrite ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 102

def dowrite
  @writethis = true
end

#encoding=(enc) ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 76

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

#inspect ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 106

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

#node_type ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 69

def node_type
  :xmldecl
end

#nowrite ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 98

def nowrite
  @writethis = false
end

#old_enc= ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 74

alias :old_enc= :encoding=

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

indent

Ignored. There must be no whitespace before an XML declaration

transitive

Ignored

ie_hack

Ignored



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# File 'lib/rexml/xmldecl.rb', line 49

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) ⇒ Object 



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# File 'lib/rexml/xmldecl.rb', line 63

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