method

namespace

v1_8_7_330 - Show latest stable - Class: REXML::Element

namespace(prefix=nil)

public

Evalutas to the URI for a prefix, or the empty string if no such namespace is declared for this element. Evaluates recursively for ancestors. Returns the default namespace, if there is one.

prefix	the prefix to search for. If not supplied, returns the default namespace if one exists
Returns	the namespace URI as a String, or nil if no such namespace exists. If the namespace is undefined, returns an empty string

doc = Document.new("<a xmlns='1' xmlns:y='2'><b/><c xmlns:z='3'/></a>")
b = doc.elements['//b']
b.namespace           # -> '1'
b.namespace("y")      # -> '2'

# File lib/rexml/element.rb, line 222
    def namespace(prefix=nil)
      if prefix.nil?
        prefix = prefix()
      end
      if prefix == ''
        prefix = "xmlns"
      else
        prefix = "xmlns:#{prefix}" unless prefix[0,5] == 'xmlns'
      end
      ns = attributes[ prefix ]
      ns = parent.namespace(prefix) if ns.nil? and parent
      ns = '' if ns.nil? and prefix == 'xmlns'
      return ns
    end

namespace

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