Iterates over all IP addresses for name
retrieved from the hosts file.
Iterates over all hostnames for address
retrieved from the hosts file.
Iterates over all IP addresses for name
retrieved from the DNS
resolver.
name
can be a Resolv::DNS::Name
or a String
. Retrieved addresses will be a Resolv::IPv4
or Resolv::IPv6
Iterates over all hostnames for address
retrieved from the DNS
resolver.
address
must be a Resolv::IPv4
, Resolv::IPv6
or a String
. Retrieved names will be Resolv::DNS::Name
instances.
Iterates over all typeclass
DNS
resources for name
. See getresource
for argument details.
Iterates over all IP addresses for name
retrieved from the mDNS resolver, provided name ends with “local”. If the name does not end in “local” no records will be returned.
name
can be a Resolv::DNS::Name
or a String
. Retrieved addresses will be a Resolv::IPv4
or Resolv::IPv6
Synonym for Element.elements
.each
Evaluates to true
if this element has any attributes set, false otherwise.
Adds an attribute to this element, overwriting any existing attribute by the same name.
can be either an Attribute
or a String
. If an Attribute
, the attribute is added to the list of Element
attributes. If String
, the argument is used as the name of the new attribute, and the value parameter must be supplied.
Required if key
is a String
, and ignored if the first argument is an Attribute
. This is a String
, and is used as the value of the new Attribute
. This should be the unnormalized value of the attribute (without entities).
the Attribute
added
e = Element.new 'e' e.add_attribute( 'a', 'b' ) #-> <e a='b'/> e.add_attribute( 'x:a', 'c' ) #-> <e a='b' x:a='c'/> e.add_attribute Attribute.new('b', 'd') #-> <e a='b' x:a='c' b='d'/>
Add multiple attributes to this element.
is either a hash, or array of arrays
el.add_attributes( {"name1"=>"value1", "name2"=>"value2"} ) el.add_attributes( [ ["name1","value1"], ["name2"=>"value2"] ] )
Removes an attribute
either an Attribute
or a String
. In either case, the attribute is found by matching the attribute name to the argument, and then removed. If no attribute is found, no action is taken.
the attribute removed, or nil if this Element
did not contain a matching attribute
e = Element.new('E') e.add_attribute( 'name', 'Sean' ) #-> <E name='Sean'/> r = e.add_attribute( 'sur:name', 'Russell' ) #-> <E name='Sean' sur:name='Russell'/> e.delete_attribute( 'name' ) #-> <E sur:name='Russell'/> e.delete_attribute( r ) #-> <E/>
Fetches an attribute
the name by which to search for the attribute. Can be a prefix:name
namespace name.
The first matching attribute, or nil if there was none. This
value is an Attribute
node, not the String
value of the attribute.
doc = Document.new '<a x:foo="1" foo="2" bar="3"/>' doc.root.attributes.get_attribute("foo").value #-> "2" doc.root.attributes.get_attribute("x:foo").value #-> "1"
Replaces one child with another, making sure the nodelist is correct @param to_replace the child to replace (must be a Child
) @param replacement the child to insert into the nodelist (must be a Child
)
Generates a Source
object @param arg Either a String
, or an IO
@return a Source
, or nil if a bad argument was given