lib/rexml/namespace.rb

   1 require 'rexml/xmltokens'
   2
   3 module REXML
   4         # Adds named attributes to an object.
   5         module Namespace
   6                 # The name of the object, valid if set
   7                 attr_reader :name, :expanded_name
   8                 # The expanded name of the object, valid if name is set
   9                 attr_accessor :prefix
  10                 include XMLTokens
  11                 NAMESPLIT = /^(?:(#{NCNAME_STR}):)?(#{NCNAME_STR})/u
  12
  13                 # Sets the name and the expanded name
  14                 def name=( name )
  15                         @expanded_name = name
  16                         name =~ NAMESPLIT
  17                         if $1
  18                                 @prefix = $1
  19                         else
  20                                 @prefix = ""
  21                                 @namespace = ""
  22                         end
  23                         @name = $2
  24                 end
  25
  26                 # Compares names optionally WITH namespaces
  27                 def has_name?( other, ns=nil )
  28                         if ns
  29                                 return (namespace() == ns and name() == other)
  30                         elsif other.include? ":"
  31                                 return fully_expanded_name == other
  32                         else
  33                                 return name == other
  34                         end
  35                 end
  36
  37                 alias :local_name :name
  38
  39                 # Fully expand the name, even if the prefix wasn't specified in the
  40                 # source file.
  41                 def fully_expanded_name
  42                         ns = prefix
  43                         return "#{ns}:#@name" if ns.size > 0
  44                         return @name
  45                 end
  46         end
  47 end