Class: Leptris::XML::Attr

Inherits:
Object
  • Object
show all
Defined in:
lib/leptris/xml/attr.rb

Overview

Lightweight attribute wrapper: a (name, value, parent_element) triple materialized from the attribute-iteration face. Mutation goes through the parent element via #[].

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, value, element) ⇒ Attr

Returns a new instance of Attr.



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# File 'lib/leptris/xml/attr.rb', line 10

def initialize(name, value, element)
  @name = name
  @value = value
  @element = element
end

Instance Attribute Details

#element ⇒ Object (readonly)

Returns the value of attribute element.



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# File 'lib/leptris/xml/attr.rb', line 8

def element
  @element
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/leptris/xml/attr.rb', line 8

def name
  @name
end

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/leptris/xml/attr.rb', line 8

def value
  @value
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 43

def ==(other)
  other.is_a?(Leptris::XML::Attr) &&
    @name == other.name && @value == other.value &&
    @element == other.element
end

#inspect ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 49

def inspect
  "#<#{self.class.name} name=#{@name.inspect} value=#{@value.inspect}>"
end

#namespace ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 21

def namespace
  nil  # upstream gap: per-attribute namespace not exposed
end

#remove ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 25

def remove
  @element.remove_attribute(@name)
end

#to_s ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 29

def to_s; @value; end

#to_str ⇒ Object 



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# File 'lib/leptris/xml/attr.rb', line 30

def to_str; @value; end

#to_xml ⇒ Object

Serialized attribute form: name="value" with the five XML special characters escaped in the value.



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# File 'lib/leptris/xml/attr.rb', line 34

def to_xml
  escaped = @value.to_s.gsub("&", "&amp;")
                     .gsub("<", "&lt;")
                     .gsub(">", "&gt;")
                     .gsub('"', "&quot;")
                     .gsub("'", "&apos;")
  "#{@name}=\"#{escaped}\""
end