Contents

require 'xml/xxpath'

d=REXML::Document.new <<EOS
  <foo>
    <bar/>
    <bar/>
  </foo>
EOS


rootelt=d.root


XML::XXPath.new("*").all(rootelt)
=> [<bar/>, <bar/>]
### ok

XML::XXPath.new("bar/*").first(rootelt, :allow_nil=>true)
=> nil
### ok, nothing there

### the same call with :ensure_created=>true
newelt = XML::XXPath.new("bar/*").first(rootelt, :ensure_created=>true)
=> </>

d.write($stdout,2)
    <foo>
    <bar>
        </>
      </bar>
    <bar/>
  </foo>


### a new "unspecified" element was created
newelt.unspecified?
=> true

### we must modify it to "specify" it
newelt.name="new-one"
newelt.text="hello!"
newelt.unspecified?
=> false

d.write($stdout,2)
    <foo>
    <bar>
        <new-one>hello!</new-one>
      </bar>
    <bar/>
  </foo>


### you could also set unspecified to false explicitly, as in:
newelt.unspecified=true

Version data entries

3 entries across 3 versions & 2 rubygems

Version	Path
pdf-labels-1.0.0	vendor/xml-mapping/examples/xpath_pathological.intout
xml-mapping-0.8	examples/xpath_pathological.intout
xml-mapping-0.8.1	examples/xpath_pathological.intout