A Child object is something contained by a parent, and this class contains methods to support that. Most user code will not use this class directly.
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 18
def initialize( parent = nil )
@parent = nil
# Declare @parent, but don't define it. The next line sets the
# parent.
parent.add( self ) if parent
end
Constructor. Any inheritors of this class should call super to make sure this method is called.
- parent
-
if supplied, the parent of this child will be set to the supplied value, and self will be added to the parent
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 91
def bytes
document.encoding
to_s
end
This doesn’t yet handle encodings
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 85
def document
return parent.document unless parent.nil?
nil
end
- Returns
-
the document this child belongs to, or nil if this child
belongs to no document
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 68
def next_sibling=( other )
parent.insert_after self, other
end
Sets the next sibling of this child. This can be used to insert a child after some other child.
a = Element.new("a") b = a.add_element("b") c = Element.new("c") b.next_sibling = c # => <a><b/><c/></a>
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 52
def parent=( other )
return @parent if @parent == other
@parent.delete self if defined? @parent and @parent
@parent = other
end
Sets the parent of this child to the supplied argument.
- other
-
Must be a
Parentobject. If this object is the same object as the existing parent of this child, no action is taken. Otherwise, this child is removed from the current parent (if one exists), and is added to the new parent. - Returns
-
The parent added
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 79
def previous_sibling=(other)
parent.insert_before self, other
end
Sets the previous sibling of this child. This can be used to insert a child before some other child.
a = Element.new("a") b = a.add_element("b") c = Element.new("c") b.previous_sibling = c # => <a><b/><c/></a>
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 37
def remove
unless @parent.nil?
@parent.delete self
end
self
end
Removes this child from the parent.
- Returns
-
self
# File tmp/rubies/ruby-2.5.9/lib/rexml/child.rb, line 29
def replace_with( child )
@parent.replace_child( self, child )
self
end
Replaces this object with another object. Basically, calls Parent.replace_child
- Returns
-
self