Class: REXML::Light::Node

Inherits:
Object show all
Defined in:
lib/rexml/light/node.rb

Overview

Represents a tagged XML element. Elements are characterized by having children, attributes, and names, and can themselves be children.

Constant Summary

NAMESPLIT = 
/^(?:(#{XMLTokens::NCNAME_STR}):)?(#{XMLTokens::NCNAME_STR})/u
PARENTS = 
[ :element, :document, :doctype ]

Instance Method Summary (collapse)

Constructor Details

- (Node) initialize(node = nil)

Create a new element.



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# File 'lib/rexml/light/node.rb', line 21

def initialize node=nil
  @node = node
  if node.kind_of? String
    node = [ :text, node ]
  elsif node.nil?
    node = [ :document, nil, nil ]
  elsif node[0] == :start_element
    node[0] = :element
  elsif node[0] == :start_doctype
    node[0] = :doctype
  elsif node[0] == :start_document
    node[0] = :document
  end
end

Instance Method Details

- (Object) <<(element)

Append a child to this element, optionally under a provided namespace. The namespace argument is ignored if the element argument is an Element object. Otherwise, the element argument is a string, the namespace (if provided) is the namespace the element is created in.



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# File 'lib/rexml/light/node.rb', line 122

def << element
  if node_type() == :text
    at(-1) << element
  else
    newnode = Node.new( element )
    newnode.parent = self
    self.push( newnode )
  end
  at(-1)
end

- (Object) =~(path) 



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# File 'lib/rexml/light/node.rb', line 98

def =~( path )
  XPath.match( self, path )
end

- (Object) [](reference, ns = nil) 



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# File 'lib/rexml/light/node.rb', line 86

def []( reference, ns=nil )
  if reference.kind_of? String
    pfx = ''
    pfx = "#{prefix(ns)}:" if ns
    at(3)["#{pfx}#{reference}"]
  elsif reference.kind_of? Range
    _old_get( Range.new(4+reference.begin, reference.end, reference.exclude_end?) )
  else
    _old_get( 4+reference )
  end
end

- (Object) []=(reference, ns, value = nil)

Doesn't handle namespaces yet



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# File 'lib/rexml/light/node.rb', line 103

def []=( reference, ns, value=nil )
  if reference.kind_of? String
    value = ns unless value
    at( 3 )[reference] = value
  elsif reference.kind_of? Range
    _old_put( Range.new(3+reference.begin, reference.end, reference.exclude_end?), ns )
  else
    if value
      _old_put( 4+reference, ns, value )
    else
      _old_put( 4+reference, ns )
    end
  end
end

- (Object) children 



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# File 'lib/rexml/light/node.rb', line 151

def children
  self
end

- (Object) each(&block) 



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# File 'lib/rexml/light/node.rb', line 44

def each( &block )
  size.times { |x| yield( at(x+4) ) }
end

- (Boolean) has_name?(name, namespace = '')

Returns:

  • (Boolean) 


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# File 'lib/rexml/light/node.rb', line 147

def has_name?( name, namespace = '' )
  at(3) == name and namespace() == namespace
end

- (Object) local_name 



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# File 'lib/rexml/light/node.rb', line 62

def local_name
  namesplit
  @name
end

- (Object) local_name=(name_str) 



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# File 'lib/rexml/light/node.rb', line 67

def local_name=( name_str )
  _old_put( 1, "#@prefix:#{name_str}" )
end

- (Object) name 



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# File 'lib/rexml/light/node.rb', line 48

def name
  at(2)
end

- (Object) name=(name_str, ns = nil) 



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# File 'lib/rexml/light/node.rb', line 52

def name=( name_str, ns=nil )
  pfx = ''
  pfx = "#{prefix(ns)}:" if ns
  _old_put(2, "#{pfx}#{name_str}")
end

- (Object) namespace(prefix = prefix()) 



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# File 'lib/rexml/light/node.rb', line 75

def namespace( prefix=prefix() )
  namespace_of( self, prefix )
end

- (Object) namespace=(namespace) 



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# File 'lib/rexml/light/node.rb', line 79

def namespace=( namespace )
  @prefix = prefix( namespace )
  pfx = ''
  pfx = "#@prefix:" if @prefix.size > 0
  _old_put(1, "#{pfx}#@name")
end

- (Object) node_type 



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# File 'lib/rexml/light/node.rb', line 133

def node_type
  _old_get(0)
end

- (Object) parent 



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# File 'lib/rexml/light/node.rb', line 155

def parent
  at(1)
end

- (Object) parent=(node) 



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# File 'lib/rexml/light/node.rb', line 58

def parent=( node )
  _old_put(1,node)
end

- (Object) prefix(namespace = nil) 



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# File 'lib/rexml/light/node.rb', line 71

def prefix( namespace=nil )
  prefix_of( self, namespace )
end

- (Object) root 



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# File 'lib/rexml/light/node.rb', line 142

def root
  context = self
  context = context.at(1) while context.at(1)
end

- (Object) size 



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# File 'lib/rexml/light/node.rb', line 36

def size
  if PARENTS.include? @node[0]
    @node[-1].size
  else
    0
  end
end

- (Object) text=(foo) 



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# File 'lib/rexml/light/node.rb', line 137

def text=( foo )
  replace = at(4).kind_of?(String)? 1 : 0
  self._old_put(4,replace, normalizefoo)
end

- (Object) to_s 



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# File 'lib/rexml/light/node.rb', line 159

def to_s

end