NOKOGIRI::XML | Delete parent where child count = 0

Ruby
1

All I wanna do is parse the XML below and delete Peter and Sam (and
President after Sam as that will be empty after deleting Sam) as they
don’t have any children …
This nested thing is driving me crazy

{code}


23
230231111




25
222222222






{code}

2

On Fri, Oct 21, 2011 at 4:09 AM, Ruby M. [email protected]
wrote:

25 222222222 {code}

Normally you should be able to pull this off with something like this
XPath

//[count(./)=0 and matches(text(), “\A\s*\z”)]

Apparently this does not work, but you can do this with Nokogiri

irb(main):060:0> puts d.xpath(‘//[count(./)=0]’).select {|n|
/\A\s*\z/ =~ n.text}




=> nil

You can remove with

irb(main):067:0> d.xpath(‘//[count(./)=0]’).select {|n| /\A\s*\z/ =~
n.text}.each &:remove
=> [#<Nokogiri::XML::Element:0x4c92fbc name=“Peter”
children=[#<Nokogiri::XML::Text:0x4c92dfa "\n ">]>,
#<Nokogiri::XML::Element:0x4c90474 name=“Sam”
children=[#<Nokogiri::XML::Text:0x4c90334 "\n ">]>]

irb(main):068:0> puts d

<?xml version="1.0"?> 23 230231111 25 222222222 => nil irb(main):069:0>

Kind regards

robert