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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>class Nokogiri::XML::NodeSet - nokogiri-1.10.9 Documentation</title> <script type="text/javascript"> var rdoc_rel_prefix = "../../"; var index_rel_prefix = "../../"; </script> <script src="../../js/navigation.js" defer></script> <script src="../../js/search.js" defer></script> <script src="../../js/search_index.js" defer></script> <script src="../../js/searcher.js" defer></script> <script src="../../js/darkfish.js" defer></script> <link href="../../css/fonts.css" rel="stylesheet"> <link href="../../css/rdoc.css" rel="stylesheet"> <body id="top" role="document" class="class"> <nav role="navigation"> <div id="project-navigation"> <div id="home-section" role="region" title="Quick navigation" class="nav-section"> <h2> <a href="../../index.html" rel="home">Home</a> </h2> <div id="table-of-contents-navigation"> <a href="../../table_of_contents.html#pages">Pages</a> <a href="../../table_of_contents.html#classes">Classes</a> <a href="../../table_of_contents.html#methods">Methods</a> </div> </div> <div id="search-section" role="search" class="project-section initially-hidden"> <form action="#" method="get" accept-charset="utf-8"> <div id="search-field-wrapper"> <input id="search-field" role="combobox" aria-label="Search" aria-autocomplete="list" aria-controls="search-results" type="text" name="search" placeholder="Search" spellcheck="false" title="Type to search, Up and Down to navigate, Enter to load"> </div> <ul id="search-results" aria-label="Search Results" aria-busy="false" aria-expanded="false" aria-atomic="false" class="initially-hidden"></ul> </form> </div> </div> <div id="class-metadata"> <div id="parent-class-section" class="nav-section"> <h3>Parent</h3> <p class="link"><a href="../../Object.html">Object</a> </div> <div id="includes-section" class="nav-section"> <h3>Included Modules</h3> <ul class="link-list"> <li><a class="include" href="Searchable.html">Nokogiri::XML::Searchable</a> <li><span class="include">Enumerable</span> </ul> </div> <!-- Method Quickref --> <div id="method-list-section" class="nav-section"> <h3>Methods</h3> <ul class="link-list" role="directory"> <li ><a href="#method-c-new">::new</a> <li ><a href="#method-i-25">#%</a> <li ><a href="#method-i-26">#&amp;</a> <li ><a href="#method-i-2B">#+</a> <li ><a href="#method-i-2D">#-</a> <li ><a href="#method-i-3C-3C">#&lt;&lt;</a> <li ><a href="#method-i-3D-3D">#==</a> <li ><a href="#method-i-3E">#&gt;</a> <li ><a href="#method-i-5B-5D">#[]</a> <li ><a href="#method-i-add_class">#add_class</a> <li ><a href="#method-i-after">#after</a> <li ><a href="#method-i-append_class">#append_class</a> <li class="calls-super" ><a href="#method-i-at">#at</a> <li ><a href="#method-i-attr">#attr</a> <li ><a href="#method-i-attribute">#attribute</a> <li ><a href="#method-i-before">#before</a> <li ><a href="#method-i-children">#children</a> <li ><a href="#method-i-clone">#clone</a> <li ><a href="#method-i-css">#css</a> <li ><a href="#method-i-delete">#delete</a> <li ><a href="#method-i-dup">#dup</a> <li ><a href="#method-i-each">#each</a> <li ><a href="#method-i-empty-3F">#empty?</a> <li ><a href="#method-i-filter">#filter</a> <li ><a href="#method-i-first">#first</a> <li ><a href="#method-i-include-3F">#include?</a> <li ><a href="#method-i-index">#index</a> <li ><a href="#method-i-inner_html">#inner_html</a> <li ><a href="#method-i-inner_text">#inner_text</a> <li ><a href="#method-i-inspect">#inspect</a> <li ><a href="#method-i-last">#last</a> <li ><a href="#method-i-length">#length</a> <li ><a href="#method-i-pop">#pop</a> <li ><a href="#method-i-push">#push</a> <li ><a href="#method-i-remove">#remove</a> <li ><a href="#method-i-remove_attr">#remove_attr</a> <li ><a href="#method-i-remove_attribute">#remove_attribute</a> <li ><a href="#method-i-remove_class">#remove_class</a> <li ><a href="#method-i-reverse">#reverse</a> <li ><a href="#method-i-set">#set</a> <li ><a href="#method-i-shift">#shift</a> <li ><a href="#method-i-size">#size</a> <li ><a href="#method-i-slice">#slice</a> <li ><a href="#method-i-text">#text</a> <li ><a href="#method-i-to_a">#to_a</a> <li ><a href="#method-i-to_ary">#to_ary</a> <li ><a href="#method-i-to_html">#to_html</a> <li ><a href="#method-i-to_s">#to_s</a> <li ><a href="#method-i-to_xhtml">#to_xhtml</a> <li ><a href="#method-i-to_xml">#to_xml</a> <li ><a href="#method-i-unlink">#unlink</a> <li ><a href="#method-i-wrap">#wrap</a> <li ><a href="#method-i-xpath">#xpath</a> <li ><a href="#method-i-7C">#|</a> </ul> </div> </div> </nav> <main role="main" aria-labelledby="class-Nokogiri::XML::NodeSet"> <h1 id="class-Nokogiri::XML::NodeSet" class="class"> class Nokogiri::XML::NodeSet </h1> <section class="description"> <p>A <a href="NodeSet.html">NodeSet</a> contains a list of <a href="Node.html">Nokogiri::XML::Node</a> objects. Typically a <a href="NodeSet.html">NodeSet</a> is return as a result of searching a <a href="Document.html">Document</a> via <a href="Searchable.html#method-i-css">Nokogiri::XML::Searchable#css</a> or <a href="Searchable.html#method-i-xpath">Nokogiri::XML::Searchable#xpath</a></p> </section> <section id="5Buntitled-5D" class="documentation-section"> <section class="attribute-method-details" class="method-section"> <header> <h3>Attributes</h3> </header> <div id="attribute-i-document" class="method-detail"> <div class="method-heading attribute-method-heading"> <span class="method-name">document</span><span class="attribute-access-type">[RW]</span> </div> <div class="method-description"> <p>The <a href="Document.html">Document</a> this <a href="NodeSet.html">NodeSet</a> is associated with</p> </div> </div> </section> <section id="public-class-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Public Class Methods</h3> </header> <div id="method-c-new" class="method-detail "> <div class="method-heading"> <span class="method-name">new</span><span class="method-args">(document, list = []) { |self| ... }</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Create a <a href="NodeSet.html">NodeSet</a> with <code>document</code> defaulting to <code>list</code></p> <div class="method-source-code" id="new-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 17</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span> <span class="ruby-identifier">document</span>, <span class="ruby-identifier">list</span> = [] <span class="ruby-ivar">@document</span> = <span class="ruby-identifier">document</span> <span class="ruby-identifier">document</span>.<span class="ruby-identifier">decorate</span>(<span class="ruby-keyword">self</span>) <span class="ruby-identifier">list</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-keyword">self</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">x</span> } <span class="ruby-keyword">yield</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> </section> <section id="public-instance-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Public Instance Methods</h3> </header> <div id="method-i-25" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">%</span><span class="method-args">(*args)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-at">at</a> </div> </div> <div id="method-i-26" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> &amp;(node_set) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Set Intersection — Returns a new <a href="NodeSet.html">NodeSet</a> containing nodes common to the two NodeSets.</p> <div class="method-source-code" id="26-source"> <pre>static VALUE intersection(VALUE self, VALUE rb_other) { xmlNodeSetPtr node_set, other ; xmlNodeSetPtr intersection; if(!rb_obj_is_kind_of(rb_other, cNokogiriXmlNodeSet)) rb_raise(rb_eArgError, &quot;node_set must be a Nokogiri::XML::NodeSet&quot;); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_other, xmlNodeSet, other); intersection = xmlXPathIntersection(node_set, other); return Nokogiri_wrap_xml_node_set(intersection, rb_iv_get(self, &quot;@document&quot;)); }</pre> </div> </div> </div> <div id="method-i-2B" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">+</span><span class="method-args">(p1)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-7C">|</a> </div> </div> <div id="method-i-2D" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> -(node_set) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Difference - returns a new <a href="NodeSet.html">NodeSet</a> that is a copy of this <a href="NodeSet.html">NodeSet</a>, removing each item that also appears in <code>node_set</code></p> <div class="method-source-code" id="2D-source"> <pre>static VALUE minus(VALUE self, VALUE rb_other) { xmlNodeSetPtr node_set, other; xmlNodeSetPtr new; int j ; if(!rb_obj_is_kind_of(rb_other, cNokogiriXmlNodeSet)) rb_raise(rb_eArgError, &quot;node_set must be a Nokogiri::XML::NodeSet&quot;); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_other, xmlNodeSet, other); new = xmlXPathNodeSetMerge(NULL, node_set); for (j = 0 ; j &lt; other-&gt;nodeNr ; ++j) { xpath_node_set_del(new, other-&gt;nodeTab[j]); } return Nokogiri_wrap_xml_node_set(new, rb_iv_get(self, &quot;@document&quot;)); }</pre> </div> </div> </div> <div id="method-i-3C-3C" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">&lt;&lt;</span><span class="method-args">(p1)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-push">push</a> </div> </div> <div id="method-i-3D-3D" class="method-detail "> <div class="method-heading"> <span class="method-name">==</span><span class="method-args">(other)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Equality – Two NodeSets are equal if the contain the same number of elements and if each element is equal to the corresponding element in the other <a href="NodeSet.html">NodeSet</a></p> <div class="method-source-code" id="3D-3D-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 327</span> <span class="ruby-keyword">def</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">other</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">other</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Nokogiri</span><span class="ruby-operator">::</span><span class="ruby-constant">XML</span><span class="ruby-operator">::</span><span class="ruby-constant">NodeSet</span>) <span class="ruby-keyword">return</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">other</span>.<span class="ruby-identifier">length</span> <span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">node</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">false</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">node</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">other</span>[<span class="ruby-identifier">i</span>] <span class="ruby-keyword">end</span> <span class="ruby-keyword">true</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-3E" class="method-detail "> <div class="method-heading"> <span class="method-name">&gt;</span><span class="method-args">(selector)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Search this NodeSet&#39;s nodes&#39; immediate children using <a href="../CSS.html">CSS</a> selector <code>selector</code></p> <div class="method-source-code" id="3E-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 105</span> <span class="ruby-keyword">def</span> <span class="ruby-operator">&gt;</span> <span class="ruby-identifier">selector</span> <span class="ruby-identifier">ns</span> = <span class="ruby-identifier">document</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">namespaces</span> <span class="ruby-identifier">xpath</span> <span class="ruby-constant">CSS</span>.<span class="ruby-identifier">xpath_for</span>(<span class="ruby-identifier">selector</span>, <span class="ruby-value">:prefix</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&quot;./&quot;</span>, <span class="ruby-value">:ns</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">ns</span>).<span class="ruby-identifier">first</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-5B-5D" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> [index] &rarr; Node or nil </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-heading"> <span class="method-callseq"> [start, length] &rarr; NodeSet or nil </span> </div> <div class="method-heading"> <span class="method-callseq"> [range] &rarr; NodeSet or nil </span> </div> <div class="method-description"> <p><a href="Element.html">Element</a> reference - returns the node at <code>index</code>, or returns a <a href="NodeSet.html">NodeSet</a> containing nodes starting at <code>start</code> and continuing for <code>length</code> elements, or returns a <a href="NodeSet.html">NodeSet</a> containing nodes specified by <code>range</code>. Negative <code>indices</code> count backward from the end of the <code>node_set</code> (-1 is the last node). Returns nil if the <code>index</code> (or <code>start</code>) are out of range.</p> <div class="method-source-code" id="5B-5D-source"> <pre>static VALUE slice(int argc, VALUE *argv, VALUE self) { VALUE arg ; long beg, len ; xmlNodeSetPtr node_set; Data_Get_Struct(self, xmlNodeSet, node_set); if (argc == 2) { beg = NUM2LONG(argv[0]); len = NUM2LONG(argv[1]); if (beg &lt; 0) { beg += node_set-&gt;nodeNr ; } return subseq(self, beg, len); } if (argc != 1) { rb_scan_args(argc, argv, &quot;11&quot;, NULL, NULL); } arg = argv[0]; if (FIXNUM_P(arg)) { return index_at(self, FIX2LONG(arg)); } /* if arg is Range */ switch (rb_range_beg_len(arg, &amp;beg, &amp;len, (long)node_set-&gt;nodeNr, 0)) { case Qfalse: break; case Qnil: return Qnil; default: return subseq(self, beg, len); } return index_at(self, NUM2LONG(arg)); }</pre> </div> </div> </div> <div id="method-i-add_class" class="method-detail "> <div class="method-heading"> <span class="method-name">add_class</span><span class="method-args">(name)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Add the class attribute <code>name</code> to all <a href="Node.html">Node</a> objects in the <a href="NodeSet.html">NodeSet</a>.</p> <p>See <a href="Node.html#method-i-add_class">Nokogiri::XML::Node#add_class</a> for more information.</p> <div class="method-source-code" id="add_class-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 142</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">add_class</span> <span class="ruby-identifier">name</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">el</span><span class="ruby-operator">|</span> <span class="ruby-identifier">el</span>.<span class="ruby-identifier">add_class</span>(<span class="ruby-identifier">name</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-after" class="method-detail "> <div class="method-heading"> <span class="method-name">after</span><span class="method-args">(datum)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Insert <code>datum</code> after the last <a href="Node.html">Node</a> in this <a href="NodeSet.html">NodeSet</a></p> <div class="method-source-code" id="after-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 65</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">after</span> <span class="ruby-identifier">datum</span> <span class="ruby-identifier">last</span>.<span class="ruby-identifier">after</span> <span class="ruby-identifier">datum</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-append_class" class="method-detail "> <div class="method-heading"> <span class="method-name">append_class</span><span class="method-args">(name)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Append the class attribute <code>name</code> to all <a href="Node.html">Node</a> objects in the <a href="NodeSet.html">NodeSet</a>.</p> <p>See <a href="Node.html#method-i-append_class">Nokogiri::XML::Node#append_class</a> for more information.</p> <div class="method-source-code" id="append_class-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 154</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">append_class</span> <span class="ruby-identifier">name</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">el</span><span class="ruby-operator">|</span> <span class="ruby-identifier">el</span>.<span class="ruby-identifier">append_class</span>(<span class="ruby-identifier">name</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-at" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> search *paths, [namespace-bindings, xpath-variable-bindings, custom-handler-class] </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Search this object for <code>paths</code>, and return only the first result. <code>paths</code> must be one or more <a href="XPath.html">XPath</a> or <a href="../CSS.html">CSS</a> queries.</p> <p>See <a href="Searchable.html#method-i-search">Nokogiri::XML::Searchable#search</a> for more information.</p> <p>Or, if passed an integer, index into the NodeSet:</p> <pre class="ruby"><span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">at</span>(<span class="ruby-value">3</span>) <span class="ruby-comment"># same as node_set[3]</span> </pre> <div class="method-calls-super"> Calls superclass method <a href="Searchable.html#method-i-at">Nokogiri::XML::Searchable#at</a> </div> <div class="method-source-code" id="at-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 122</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">at</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">args</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span> <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">args</span>.<span class="ruby-identifier">first</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Numeric</span>) <span class="ruby-keyword">return</span> <span class="ruby-keyword">self</span>[<span class="ruby-identifier">args</span>.<span class="ruby-identifier">first</span>] <span class="ruby-keyword">end</span> <span class="ruby-keyword">super</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-25">%</a> </div> </div> <div id="method-i-attr" class="method-detail "> <div class="method-heading"> <span class="method-name">attr</span><span class="method-args">(key, value = nil, &block)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Set attributes on each <a href="Node.html">Node</a> in the <a href="NodeSet.html">NodeSet</a>, or get an attribute from the first <a href="Node.html">Node</a> in the <a href="NodeSet.html">NodeSet</a>.</p> <p>To get an attribute from the first <a href="Node.html">Node</a> in a NodeSet:</p> <pre class="ruby"><span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">attr</span>(<span class="ruby-string">&quot;href&quot;</span>) <span class="ruby-comment"># =&gt; &quot;https://www.nokogiri.org&quot;</span> </pre> <p>Note that an empty <a href="NodeSet.html">NodeSet</a> will return nil when <code>#attr</code> is called as a getter.</p> <p>To set an attribute on each node, <code>key</code> can either be an attribute name, or a Hash of attribute names and values. When called as a setter, <code>#attr</code> returns the <a href="NodeSet.html">NodeSet</a>.</p> <p>If <code>key</code> is an attribute name, then either <code>value</code> or <code>block</code> must be passed.</p> <p>If <code>key</code> is a Hash then attributes will be set for each key/value pair:</p> <pre class="ruby"><span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">attr</span>(<span class="ruby-string">&quot;href&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&quot;https://www.nokogiri.org&quot;</span>, <span class="ruby-string">&quot;class&quot;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&quot;member&quot;</span>) </pre> <p>If <code>value</code> is passed, it will be used as the attribute value for all nodes:</p> <pre class="ruby"><span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">attr</span>(<span class="ruby-string">&quot;href&quot;</span>, <span class="ruby-string">&quot;https://www.nokogiri.org&quot;</span>) </pre> <p>If <code>block</code> is passed, it will be called on each <a href="Node.html">Node</a> object in the <a href="NodeSet.html">NodeSet</a> and the return value used as the attribute value for that node:</p> <pre class="ruby"><span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">attr</span>(<span class="ruby-string">&quot;class&quot;</span>) { <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">name</span> } </pre> <div class="method-source-code" id="attr-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 206</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">attr</span> <span class="ruby-identifier">key</span>, <span class="ruby-identifier">value</span> = <span class="ruby-keyword">nil</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">block</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">key</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>) <span class="ruby-operator">||</span> (<span class="ruby-identifier">key</span> <span class="ruby-operator">&amp;&amp;</span> (<span class="ruby-identifier">value</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">block</span>)) <span class="ruby-keyword">return</span> <span class="ruby-identifier">first</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">first</span>.<span class="ruby-identifier">attribute</span>(<span class="ruby-identifier">key</span>) <span class="ruby-operator">:</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">end</span> <span class="ruby-identifier">hash</span> = <span class="ruby-identifier">key</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">key</span> <span class="ruby-operator">:</span> { <span class="ruby-identifier">key</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">value</span> } <span class="ruby-identifier">hash</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">k</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node</span>[<span class="ruby-identifier">k</span>] = <span class="ruby-identifier">v</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">block</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">node</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-set">set</a>, <a href="NodeSet.html#method-i-attribute">attribute</a> </div> </div> <div id="method-i-attribute" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">attribute</span><span class="method-args">(key, value = nil, &block)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-attr">attr</a> </div> </div> <div id="method-i-before" class="method-detail "> <div class="method-heading"> <span class="method-name">before</span><span class="method-args">(datum)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Insert <code>datum</code> before the first <a href="Node.html">Node</a> in this <a href="NodeSet.html">NodeSet</a></p> <div class="method-source-code" id="before-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 59</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">before</span> <span class="ruby-identifier">datum</span> <span class="ruby-identifier">first</span>.<span class="ruby-identifier">before</span> <span class="ruby-identifier">datum</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-children" class="method-detail "> <div class="method-heading"> <span class="method-name">children</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns a new <a href="NodeSet.html">NodeSet</a> containing all the children of all the nodes in the <a href="NodeSet.html">NodeSet</a></p> <div class="method-source-code" id="children-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 339</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">children</span> <span class="ruby-identifier">node_set</span> = <span class="ruby-constant">NodeSet</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">document</span>) <span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">children</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">n</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">push</span>(<span class="ruby-identifier">n</span>) } <span class="ruby-keyword">end</span> <span class="ruby-identifier">node_set</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-clone" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">clone</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-dup">dup</a> </div> </div> <div id="method-i-css" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> css *rules, [namespace-bindings, custom-pseudo-class] </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Search this node set for <a href="../CSS.html">CSS</a> <code>rules</code>. <code>rules</code> must be one or more <a href="../CSS.html">CSS</a> selectors. For example:</p> <p>For more information see <a href="Searchable.html#method-i-css">Nokogiri::XML::Searchable#css</a></p> <div class="method-source-code" id="css-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 79</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">css</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">rules</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-identifier">_</span> = <span class="ruby-identifier">extract_params</span>(<span class="ruby-identifier">args</span>) <span class="ruby-identifier">paths</span> = <span class="ruby-identifier">css_rules_to_xpath</span>(<span class="ruby-identifier">rules</span>, <span class="ruby-identifier">ns</span>) <span class="ruby-identifier">inject</span>(<span class="ruby-constant">NodeSet</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">document</span>)) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">set</span>, <span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">set</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">xpath_internal</span>(<span class="ruby-identifier">node</span>, <span class="ruby-identifier">paths</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-keyword">nil</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-delete" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> delete(node) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Delete <code>node</code> from the Nodeset, if it is a member. Returns the deleted node if found, otherwise returns nil.</p> <div class="method-source-code" id="delete-source"> <pre>static VALUE delete(VALUE self, VALUE rb_node) { xmlNodeSetPtr node_set; xmlNodePtr node; Check_Node_Set_Node_Type(rb_node); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_node, xmlNode, node); if (xmlXPathNodeSetContains(node_set, node)) { xpath_node_set_del(node_set, node); return rb_node; } return Qnil ; }</pre> </div> </div> </div> <div id="method-i-dup" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> dup </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Duplicate this <a href="NodeSet.html">NodeSet</a>. Note that the Nodes contained in the <a href="NodeSet.html">NodeSet</a> are not duplicated (similar to how Array and other Enumerable classes work).</p> <div class="method-source-code" id="dup-source"> <pre>static VALUE duplicate(VALUE self) { xmlNodeSetPtr node_set; xmlNodeSetPtr dupl; Data_Get_Struct(self, xmlNodeSet, node_set); dupl = xmlXPathNodeSetMerge(NULL, node_set); return Nokogiri_wrap_xml_node_set(dupl, rb_iv_get(self, &quot;@document&quot;)); }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-clone">clone</a> </div> </div> <div id="method-i-each" class="method-detail "> <div class="method-heading"> <span class="method-name">each</span><span class="method-args">() { |self| ... }</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Iterate over each node, yielding to <code>block</code></p> <div class="method-source-code" id="each-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 234</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">to_enum</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-value">0</span>.<span class="ruby-identifier">upto</span>(<span class="ruby-identifier">length</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-keyword">yield</span> <span class="ruby-keyword">self</span>[<span class="ruby-identifier">x</span>] <span class="ruby-keyword">end</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-empty-3F" class="method-detail "> <div class="method-heading"> <span class="method-name">empty?</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Is this <a href="NodeSet.html">NodeSet</a> empty?</p> <div class="method-source-code" id="empty-3F-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 41</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">empty?</span> <span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-filter" class="method-detail "> <div class="method-heading"> <span class="method-name">filter</span><span class="method-args">(expr)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Filter this list for nodes that match <code>expr</code></p> <div class="method-source-code" id="filter-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 133</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">filter</span> <span class="ruby-identifier">expr</span> <span class="ruby-identifier">find_all</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">matches?</span>(<span class="ruby-identifier">expr</span>) } <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-first" class="method-detail "> <div class="method-heading"> <span class="method-name">first</span><span class="method-args">(n = nil)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the first element of the <a href="NodeSet.html">NodeSet</a>.</p> <div class="method-source-code" id="first-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 26</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">first</span> <span class="ruby-identifier">n</span> = <span class="ruby-keyword">nil</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">self</span>[<span class="ruby-value">0</span>] <span class="ruby-keyword">unless</span> <span class="ruby-identifier">n</span> <span class="ruby-identifier">list</span> = [] [<span class="ruby-identifier">n</span>, <span class="ruby-identifier">length</span>].<span class="ruby-identifier">min</span>.<span class="ruby-identifier">times</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span> <span class="ruby-identifier">list</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-keyword">self</span>[<span class="ruby-identifier">i</span>] } <span class="ruby-identifier">list</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-include-3F" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> include?(node) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns true if any member of node set equals <code>node</code>.</p> <div class="method-source-code" id="include-3F-source"> <pre>static VALUE include_eh(VALUE self, VALUE rb_node) { xmlNodeSetPtr node_set; xmlNodePtr node; Check_Node_Set_Node_Type(rb_node); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_node, xmlNode, node); return (xmlXPathNodeSetContains(node_set, node) ? Qtrue : Qfalse); }</pre> </div> </div> </div> <div id="method-i-index" class="method-detail "> <div class="method-heading"> <span class="method-name">index</span><span class="method-args">(node = nil) { |member| ... }</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns the index of the first node in self that is == to <code>node</code> or meets the given block. Returns nil if no match is found.</p> <div class="method-source-code" id="index-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 47</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">index</span>(<span class="ruby-identifier">node</span> = <span class="ruby-keyword">nil</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">node</span> <span class="ruby-identifier">warn</span> <span class="ruby-string">&quot;given block not used&quot;</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-identifier">each_with_index</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">member</span>, <span class="ruby-identifier">j</span><span class="ruby-operator">|</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">j</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">member</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">node</span> } <span class="ruby-keyword">elsif</span> <span class="ruby-identifier">block_given?</span> <span class="ruby-identifier">each_with_index</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">member</span>, <span class="ruby-identifier">j</span><span class="ruby-operator">|</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">j</span> <span class="ruby-keyword">if</span> <span class="ruby-keyword">yield</span>(<span class="ruby-identifier">member</span>) } <span class="ruby-keyword">end</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-inner_html" class="method-detail "> <div class="method-heading"> <span class="method-name">inner_html</span><span class="method-args">(*args)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the inner html of all contained <a href="Node.html">Node</a> objects</p> <div class="method-source-code" id="inner_html-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 263</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">inner_html</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">collect</span>{<span class="ruby-operator">|</span><span class="ruby-identifier">j</span><span class="ruby-operator">|</span> <span class="ruby-identifier">j</span>.<span class="ruby-identifier">inner_html</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) }.<span class="ruby-identifier">join</span>(<span class="ruby-string">&#39;&#39;</span>) <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-inner_text" class="method-detail "> <div class="method-heading"> <span class="method-name">inner_text</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the inner text of all contained <a href="Node.html">Node</a> objects</p> <p>Note: This joins the text of all <a href="Node.html">Node</a> objects in the NodeSet:</p> <pre class="ruby"><span class="ruby-identifier">doc</span> = <span class="ruby-constant">Nokogiri</span><span class="ruby-operator">::</span><span class="ruby-constant">XML</span>(<span class="ruby-string">&#39;&lt;xml&gt;&lt;a&gt;&lt;d&gt;foo&lt;/d&gt;&lt;d&gt;bar&lt;/d&gt;&lt;/a&gt;&lt;/xml&gt;&#39;</span>) <span class="ruby-identifier">doc</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;d&#39;</span>).<span class="ruby-identifier">text</span> <span class="ruby-comment"># =&gt; &quot;foobar&quot;</span> </pre> <p>Instead, if you want to return the text of all nodes in the NodeSet:</p> <pre class="ruby"><span class="ruby-identifier">doc</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;d&#39;</span>).<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span>:<span class="ruby-identifier">text</span>) <span class="ruby-comment"># =&gt; [&quot;foo&quot;, &quot;bar&quot;]</span> </pre> <p>See <a href="Node.html#method-i-content">Nokogiri::XML::Node#content</a> for more information.</p> <div class="method-source-code" id="inner_text-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 256</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">inner_text</span> <span class="ruby-identifier">collect</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:inner_text</span>).<span class="ruby-identifier">join</span>(<span class="ruby-string">&#39;&#39;</span>) <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-text">text</a> </div> </div> <div id="method-i-inspect" class="method-detail "> <div class="method-heading"> <span class="method-name">inspect</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Return a nicely formated string representation</p> <div class="method-source-code" id="inspect-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 360</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">inspect</span> <span class="ruby-node">&quot;[#{map(&amp;:inspect).join &#39;, &#39;}]&quot;</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-last" class="method-detail "> <div class="method-heading"> <span class="method-name">last</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the last element of the <a href="NodeSet.html">NodeSet</a>.</p> <div class="method-source-code" id="last-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 35</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">last</span> <span class="ruby-keyword">self</span>[<span class="ruby-value">-1</span>] <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-length" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> length </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the length of the node set</p> <div class="method-source-code" id="length-source"> <pre>static VALUE length(VALUE self) { xmlNodeSetPtr node_set; Data_Get_Struct(self, xmlNodeSet, node_set); return node_set ? INT2NUM(node_set-&gt;nodeNr) : INT2NUM(0); }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-size">size</a> </div> </div> <div id="method-i-pop" class="method-detail "> <div class="method-heading"> <span class="method-name">pop</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Removes the last element from set and returns it, or <code>nil</code> if the set is empty</p> <div class="method-source-code" id="pop-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 310</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">pop</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-identifier">delete</span> <span class="ruby-identifier">last</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-push" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> push(node) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Append <code>node</code> to the <a href="NodeSet.html">NodeSet</a>.</p> <div class="method-source-code" id="push-source"> <pre>static VALUE push(VALUE self, VALUE rb_node) { xmlNodeSetPtr node_set; xmlNodePtr node; Check_Node_Set_Node_Type(rb_node); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_node, xmlNode, node); xmlXPathNodeSetAdd(node_set, node); return self; }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-3C-3C">&lt;&lt;</a> </div> </div> <div id="method-i-remove" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">remove</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-unlink">unlink</a> </div> </div> <div id="method-i-remove_attr" class="method-detail "> <div class="method-heading"> <span class="method-name">remove_attr</span><span class="method-args">(name)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Remove the attributed named <code>name</code> from all <a href="Node.html">Node</a> objects in the <a href="NodeSet.html">NodeSet</a></p> <div class="method-source-code" id="remove_attr-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 226</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">remove_attr</span> <span class="ruby-identifier">name</span> <span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">el</span><span class="ruby-operator">|</span> <span class="ruby-identifier">el</span>.<span class="ruby-identifier">delete</span> <span class="ruby-identifier">name</span> } <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-remove_attribute">remove_attribute</a> </div> </div> <div id="method-i-remove_attribute" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">remove_attribute</span><span class="method-args">(name)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-remove_attr">remove_attr</a> </div> </div> <div id="method-i-remove_class" class="method-detail "> <div class="method-heading"> <span class="method-name">remove_class</span><span class="method-args">(name = nil)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Remove the class attribute <code>name</code> from all <a href="Node.html">Node</a> objects in the <a href="NodeSet.html">NodeSet</a>.</p> <p>See <a href="Node.html#method-i-remove_class">Nokogiri::XML::Node#remove_class</a> for more information.</p> <div class="method-source-code" id="remove_class-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 166</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">remove_class</span> <span class="ruby-identifier">name</span> = <span class="ruby-keyword">nil</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">el</span><span class="ruby-operator">|</span> <span class="ruby-identifier">el</span>.<span class="ruby-identifier">remove_class</span>(<span class="ruby-identifier">name</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">self</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-reverse" class="method-detail "> <div class="method-heading"> <span class="method-name">reverse</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns a new <a href="NodeSet.html">NodeSet</a> containing all the nodes in the <a href="NodeSet.html">NodeSet</a> in reverse order</p> <div class="method-source-code" id="reverse-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 350</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">reverse</span> <span class="ruby-identifier">node_set</span> = <span class="ruby-constant">NodeSet</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">document</span>) (<span class="ruby-identifier">length</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>).<span class="ruby-identifier">downto</span>(<span class="ruby-value">0</span>) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node_set</span>.<span class="ruby-identifier">push</span> <span class="ruby-keyword">self</span>[<span class="ruby-identifier">x</span>] <span class="ruby-keyword">end</span> <span class="ruby-identifier">node_set</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-set" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">set</span><span class="method-args">(key, value = nil, &block)</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-attr">attr</a> </div> </div> <div id="method-i-shift" class="method-detail "> <div class="method-heading"> <span class="method-name">shift</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns the first element of the <a href="NodeSet.html">NodeSet</a> and removes it. Returns <code>nil</code> if the set is empty.</p> <div class="method-source-code" id="shift-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 318</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">shift</span> <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-identifier">delete</span> <span class="ruby-identifier">first</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-size" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">size</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-length">length</a> </div> </div> <div id="method-i-slice" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> slice(index) &rarr; Node or nil </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-heading"> <span class="method-callseq"> slice(start, length) &rarr; NodeSet or nil </span> </div> <div class="method-heading"> <span class="method-callseq"> slice(range) &rarr; NodeSet or nil </span> </div> <div class="method-description"> <p><a href="Element.html">Element</a> reference - returns the node at <code>index</code>, or returns a <a href="NodeSet.html">NodeSet</a> containing nodes starting at <code>start</code> and continuing for <code>length</code> elements, or returns a <a href="NodeSet.html">NodeSet</a> containing nodes specified by <code>range</code>. Negative <code>indices</code> count backward from the end of the <code>node_set</code> (-1 is the last node). Returns nil if the <code>index</code> (or <code>start</code>) are out of range.</p> <div class="method-source-code" id="slice-source"> <pre>static VALUE slice(int argc, VALUE *argv, VALUE self) { VALUE arg ; long beg, len ; xmlNodeSetPtr node_set; Data_Get_Struct(self, xmlNodeSet, node_set); if (argc == 2) { beg = NUM2LONG(argv[0]); len = NUM2LONG(argv[1]); if (beg &lt; 0) { beg += node_set-&gt;nodeNr ; } return subseq(self, beg, len); } if (argc != 1) { rb_scan_args(argc, argv, &quot;11&quot;, NULL, NULL); } arg = argv[0]; if (FIXNUM_P(arg)) { return index_at(self, FIX2LONG(arg)); } /* if arg is Range */ switch (rb_range_beg_len(arg, &amp;beg, &amp;len, (long)node_set-&gt;nodeNr, 0)) { case Qfalse: break; case Qnil: return Qnil; default: return subseq(self, beg, len); } return index_at(self, NUM2LONG(arg)); }</pre> </div> </div> </div> <div id="method-i-text" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">text</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-inner_text">inner_text</a> </div> </div> <div id="method-i-to_a" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> to_a </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Return this list as an Array</p> <div class="method-source-code" id="to_a-source"> <pre>static VALUE to_array(VALUE self, VALUE rb_node) { xmlNodeSetPtr node_set ; VALUE list; int i; Data_Get_Struct(self, xmlNodeSet, node_set); list = rb_ary_new2(node_set-&gt;nodeNr); for(i = 0; i &lt; node_set-&gt;nodeNr; i++) { VALUE elt = Nokogiri_wrap_xml_node_set_node(node_set-&gt;nodeTab[i], self); rb_ary_push( list, elt ); } return list; }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-to_ary">to_ary</a> </div> </div> <div id="method-i-to_ary" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">to_ary</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="NodeSet.html#method-i-to_a">to_a</a> </div> </div> <div id="method-i-to_html" class="method-detail "> <div class="method-heading"> <span class="method-name">to_html</span><span class="method-args">(*args)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Convert this <a href="NodeSet.html">NodeSet</a> to <a href="../HTML.html">HTML</a></p> <div class="method-source-code" id="to_html-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 281</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">to_html</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-keyword">if</span> <span class="ruby-constant">Nokogiri</span>.<span class="ruby-identifier">jruby?</span> <span class="ruby-identifier">options</span> = <span class="ruby-identifier">args</span>.<span class="ruby-identifier">first</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">args</span>.<span class="ruby-identifier">shift</span> <span class="ruby-operator">:</span> {} <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">options</span>[<span class="ruby-value">:save_with</span>] <span class="ruby-identifier">options</span>[<span class="ruby-value">:save_with</span>] = <span class="ruby-constant">Node</span><span class="ruby-operator">::</span><span class="ruby-constant">SaveOptions</span><span class="ruby-operator">::</span><span class="ruby-constant">NO_DECLARATION</span> <span class="ruby-operator">|</span> <span class="ruby-constant">Node</span><span class="ruby-operator">::</span><span class="ruby-constant">SaveOptions</span><span class="ruby-operator">::</span><span class="ruby-constant">NO_EMPTY_TAGS</span> <span class="ruby-operator">|</span> <span class="ruby-constant">Node</span><span class="ruby-operator">::</span><span class="ruby-constant">SaveOptions</span><span class="ruby-operator">::</span><span class="ruby-constant">AS_HTML</span> <span class="ruby-keyword">end</span> <span class="ruby-identifier">args</span>.<span class="ruby-identifier">insert</span>(<span class="ruby-value">0</span>, <span class="ruby-identifier">options</span>) <span class="ruby-keyword">end</span> <span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-identifier">x</span>.<span class="ruby-identifier">to_html</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) }.<span class="ruby-identifier">join</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-to_s" class="method-detail "> <div class="method-heading"> <span class="method-name">to_s</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Convert this <a href="NodeSet.html">NodeSet</a> to a string.</p> <div class="method-source-code" id="to_s-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 275</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">to_s</span> <span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:to_s</span>).<span class="ruby-identifier">join</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-to_xhtml" class="method-detail "> <div class="method-heading"> <span class="method-name">to_xhtml</span><span class="method-args">(*args)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Convert this <a href="NodeSet.html">NodeSet</a> to XHTML</p> <div class="method-source-code" id="to_xhtml-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 294</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">to_xhtml</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-identifier">x</span>.<span class="ruby-identifier">to_xhtml</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) }.<span class="ruby-identifier">join</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-to_xml" class="method-detail "> <div class="method-heading"> <span class="method-name">to_xml</span><span class="method-args">(*args)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Convert this <a href="NodeSet.html">NodeSet</a> to <a href="../XML.html">XML</a></p> <div class="method-source-code" id="to_xml-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 300</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">to_xml</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">x</span><span class="ruby-operator">|</span> <span class="ruby-identifier">x</span>.<span class="ruby-identifier">to_xml</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>) }.<span class="ruby-identifier">join</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-unlink" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> unlink </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Unlink this <a href="NodeSet.html">NodeSet</a> and all <a href="Node.html">Node</a> objects it contains from their current context.</p> <div class="method-source-code" id="unlink-source"> <pre>static VALUE unlink_nodeset(VALUE self) { xmlNodeSetPtr node_set; int j, nodeNr ; Data_Get_Struct(self, xmlNodeSet, node_set); nodeNr = node_set-&gt;nodeNr ; for (j = 0 ; j &lt; nodeNr ; j++) { if (! NOKOGIRI_NAMESPACE_EH(node_set-&gt;nodeTab[j])) { VALUE node ; xmlNodePtr node_ptr; node = Nokogiri_wrap_xml_node(Qnil, node_set-&gt;nodeTab[j]); rb_funcall(node, rb_intern(&quot;unlink&quot;), 0); /* modifies the C struct out from under the object */ Data_Get_Struct(node, xmlNode, node_ptr); node_set-&gt;nodeTab[j] = node_ptr ; } } return self ; }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-remove">remove</a> </div> </div> <div id="method-i-wrap" class="method-detail "> <div class="method-heading"> <span class="method-name">wrap</span><span class="method-args">(html)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Wrap this <a href="NodeSet.html">NodeSet</a> with <code>html</code></p> <div class="method-source-code" id="wrap-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 269</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">wrap</span> <span class="ruby-identifier">html</span> <span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">wrap</span> <span class="ruby-identifier">html</span> } <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-xpath" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> xpath *paths, [namespace-bindings, variable-bindings, custom-handler-class] </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Search this node set for <a href="XPath.html">XPath</a> <code>paths</code>. <code>paths</code> must be one or more <a href="XPath.html">XPath</a> queries.</p> <p>For more information see <a href="Searchable.html#method-i-xpath">Nokogiri::XML::Searchable#xpath</a></p> <div class="method-source-code" id="xpath-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/node_set.rb, line 95</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">xpath</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">paths</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-identifier">binds</span> = <span class="ruby-identifier">extract_params</span>(<span class="ruby-identifier">args</span>) <span class="ruby-identifier">inject</span>(<span class="ruby-constant">NodeSet</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">document</span>)) <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">set</span>, <span class="ruby-identifier">node</span><span class="ruby-operator">|</span> <span class="ruby-identifier">set</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">xpath_internal</span>(<span class="ruby-identifier">node</span>, <span class="ruby-identifier">paths</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-identifier">binds</span>) <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-7C" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> |(node_set) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns a new set built by merging the set and the elements of the given set.</p> <div class="method-source-code" id="7C-source"> <pre>static VALUE set_union(VALUE self, VALUE rb_other) { xmlNodeSetPtr node_set, other; xmlNodeSetPtr new; if(!rb_obj_is_kind_of(rb_other, cNokogiriXmlNodeSet)) rb_raise(rb_eArgError, &quot;node_set must be a Nokogiri::XML::NodeSet&quot;); Data_Get_Struct(self, xmlNodeSet, node_set); Data_Get_Struct(rb_other, xmlNodeSet, other); new = xmlXPathNodeSetMerge(NULL, node_set); new = xmlXPathNodeSetMerge(new, other); return Nokogiri_wrap_xml_node_set(new, rb_iv_get(self, &quot;@document&quot;)); }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="NodeSet.html#method-i-2B">+</a> </div> </div> </section> </section> </main> <footer id="validator-badges" role="contentinfo"> <p><a href="http://validator.w3.org/check/referer">Validate</a> <p>Generated by <a href="https://rdoc.github.io/rdoc">RDoc</a> 5.0.1. <p>Based on <a href="http://deveiate.org/projects/Darkfish-RDoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>. </footer>