class REXML::Element

def prefixes

d.elements['//c'].prefixes # => ["x", "y", "z"]
d.elements['//b'].prefixes # => ["x", "y"]
d.elements['//a'].prefixes # => ["x", "y"]
d = REXML::Document.new(xml_string, {compress_whitespace: :all})
EOT

xml_string = <<-EOT

in the element and its ancestors:
Returns an array of the string prefixes (names) of all defined namespaces

prefixes -> array_of_namespace_prefixes
:call-seq:

def prefixes prefixes = [] prefixes = parent.prefixes if parent prefixes |= attributes.prefixes return prefixes end

Included Modules

REXML::Element::Namespace

Instance Methods

# []

# __to_xpath_helper

# add_attribute

# add_attributes

# add_element

# add_namespace

# add_text

# attribute

# cdatas

# clone

# comments

# delete_attribute

# delete_element

# delete_namespace

# document

# each_element

# each_element_with_attribute

# each_element_with_text

# each_with_something

# get_elements

# get_text

# has_attributes?

# has_elements?

# has_text?

# ignore_whitespace_nodes

# initialize

# inspect

# instructions

# namespace

# namespaces

# next_element

# node_type

# prefixes

# previous_element

# raw

# root

# root_node

# text

# text=

# texts

# whitespace

# write

# xpath