nokogiri

问题 Real quick, I am aware of a similar question. However, following the top rated answer does not work. I've already restarted my system and the terminal, but to no avail. For some reason, Nokogiri does not recognize that I have libxslt1-dev installed, though I explicitly installed it, both with sudo apt-get install libxslt-dev and sudo apt-get install libxslt1-dev . Here's the output; am I missing anything else? $ gem install nokogiri -v '1.5.2' Building native extensions. This could take a

问题 I want to extract all the HTML5 data attributes from a tag, just like this jQuery plugin. For example, given: <span data-age="50" data-location="London" class="highlight">Joe Bloggs</span> I want to get a hash like: { 'data-age' => '50', 'data-location' => 'London' } I was originally hoping use a wildcard as part of my CSS selector, e.g. Nokogiri(html).css('span[@data-*]').size but it seems that isn't supported. 回答1: Option 1: Grab all data elements If all you need is to list all the page's

问题 having this problem on installing several things on my mac, i think this problem is coming from upgrading my leopard to snow leopard. Also this problem also is linked with macports i think. /usr/local/lib/libz.1.dylib, file was built for i386 which is not the architecture being linked (x86_64) Any ideas? Update To be more specific this happens on installing nokogiri gem and the log looks like: xslt_stylesheet.c:127: warning: passing argument 1 of ‘Nokogiri_wrap_xml_document’ with different

问题 <root> <channel> <one>example</one> <two>example2</two> </channel> <channel> <one>example</one> </channel> </root> In the second node, I don't have a <two> node. If I use this: root.channel.two obviously I get the error "Method missing". How can I check to avoid this error? What is the conditional statement I would use? 回答1: Technique 1: Rescue Any Error require 'nokogiri' d = Nokogiri.XML("<foo><bar /></foo>") bad = d.root.bar #=> undefined method `bar' for #<...> (NoMethodError) d.slop! yay

问题 xpath for selecting html tag ? <select> <option value="first option"> 1 </option> <option value="second option"> 2 </option> <option value="third option"> 3 </option> </select> Would below suffice ? html/body/form/select[@name='options' and @value='first option'] 回答1: Several options here: /html/body/form/select/option /html/body/form/select/option[1] /html/body/form/select/option[position() = 1] /html/body/form/select/option[@value='first option'] All these lead to first option element 回答2:

问题 This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center. Closed 7 years ago . I've never had problems deploying this app but I've just pushed and now I'm getting this weird error, which is deep enough in the stack that it's not

问题 I want to read and open an .yml file and create an XML using Nokogiri ? Can anybody tell me how to do it ? This is the Yaml format: getOrderDetails: Id: '114' Name: 'XYZ' This is the XML I need: <product> <id>123</id> <name>xyz</name> </product> And this is the ruby file: require 'nokogiri' require 'rubygems' require 'spec/spec_helper' require 'yaml' @doc = YAML.load(File.open(File.expand_path('/Workspace/XML_Parsing/getDetails_api.yml'‌​))) @doc = File.open('/Workspace/XML_Parsing/getDetails

问题 I an XML-like document which is pre-processed by a system out of my control. The format of the document is like this: <template> Hello, there <RECALL>first_name</RECALL>. Thanks for giving me your email. <SETPROFILE><NAME>email</NAME><VALUE><star/></VALUE></SETPROFILE>. I have just sent you something. </template> However, I only get as a text string what is between the <template> tags. I would like to be able to extract without specifying the tags ahead of time when parsing. I can do this

问题 I'm trying to run $gem install eventmachine -v '0.12.10' because when running $bundle install within my rails app, when it gets to eventmachine I get this error: Installing eventmachine (0.12.10) Errno::EACCES: Permission denied - /Users/pippinlee/.rvm/gems/ruby-1.9.3-p194/gems/eventmachine-0.12.10/.gitignore An error occured while installing eventmachine (0.12.10), and Bundler cannot continue. Make sure that `gem install eventmachine -v '0.12.10'` succeeds before bundling. I have tried

问题 I was trying to set an attribute for a specific element in an xml file and I was having success using doc.css('Object').attr("Id").value = timestamp This was fine until the situation where 'Object' doesn't exist causing an exception in the program and quitting. To avoid that I wanted to use Nodeset as it'll just be empty instead. doc.css('Object').each do |element| element.attr("Id").value = timestamp end However this returns with the error that value= is an undefined method. It's probably