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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>module Nokogiri::XML::Searchable - 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="module"> <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"> <!-- Method Quickref --> <div id="method-list-section" class="nav-section"> <h3>Methods</h3> <ul class="link-list" role="directory"> <li ><a href="#method-i-25">#%</a> <li ><a href="#method-i-2F">#/</a> <li ><a href="#method-i-at">#at</a> <li ><a href="#method-i-at_css">#at_css</a> <li ><a href="#method-i-at_xpath">#at_xpath</a> <li ><a href="#method-i-css">#css</a> <li ><a href="#method-i-css_internal">#css_internal</a> <li ><a href="#method-i-css_rules_to_xpath">#css_rules_to_xpath</a> <li ><a href="#method-i-search">#search</a> <li ><a href="#method-i-xpath">#xpath</a> <li ><a href="#method-i-xpath_impl">#xpath_impl</a> <li ><a href="#method-i-xpath_internal">#xpath_internal</a> <li ><a href="#method-i-xpath_query_from_css_rule">#xpath_query_from_css_rule</a> </ul> </div> </div> </nav> <main role="main" aria-labelledby="module-Nokogiri::XML::Searchable"> <h1 id="module-Nokogiri::XML::Searchable" class="module"> module Nokogiri::XML::Searchable </h1> <section class="description"> <p>The <a href="Searchable.html">Searchable</a> module declares the interface used for searching your DOM.</p> <p>It implements the public methods `search`, `css`, and `xpath`, as well as allowing specific implementations to specialize some of the important behaviors.</p> </section> <section id="5Buntitled-5D" class="documentation-section"> <section class="constants-list"> <header> <h3>Constants</h3> </header> <dl> <dt id="LOOKS_LIKE_XPATH">LOOKS_LIKE_XPATH <dd><p>Regular expression used by <a href="Searchable.html#method-i-search">#search</a> to determine if a query string is <a href="../CSS.html">CSS</a> or <a href="XPath.html">XPath</a></p> </dl> </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="Searchable.html#method-i-at">at</a> </div> </div> <div id="method-i-2F" 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="Searchable.html#method-i-search">search</a> </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">#search</a> for more information.</p> <div class="method-source-code" id="at-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 66</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-identifier">search</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>).<span class="ruby-identifier">first</span> <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="Searchable.html#method-i-25">%</a> </div> </div> <div id="method-i-at_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 object for <a href="../CSS.html">CSS</a> <code>rules</code>, and return only the first match. <code>rules</code> must be one or more <a href="../CSS.html">CSS</a> selectors.</p> <p>See <a href="Searchable.html#method-i-css">#css</a> for more information.</p> <div class="method-source-code" id="at_css-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 117</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">at_css</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">css</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>).<span class="ruby-identifier">first</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-at_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 for <a href="XPath.html">XPath</a> <code>paths</code>, and return only the first match. <code>paths</code> must be one or more <a href="XPath.html">XPath</a> queries.</p> <p>See <a href="Searchable.html#method-i-xpath">#xpath</a> for more information.</p> <div class="method-source-code" id="at_xpath-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 164</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">at_xpath</span> <span class="ruby-operator">*</span><span class="ruby-identifier">args</span> <span class="ruby-identifier">xpath</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">args</span>).<span class="ruby-identifier">first</span> <span class="ruby-keyword">end</span></pre> </div> </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 object 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> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;title&#39;</span>) <span class="ruby-identifier">node</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;body h1.bold&#39;</span>) <span class="ruby-identifier">node</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;div + p.green&#39;</span>, <span class="ruby-string">&#39;div#one&#39;</span>) </pre> <p>A hash of namespace bindings may be appended. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;bike|tire&#39;</span>, {<span class="ruby-string">&#39;bike&#39;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;http://schwinn.com/&#39;</span>}) </pre> <p>Custom <a href="../CSS.html">CSS</a> pseudo classes may also be defined. To define custom pseudo classes, create a class and implement the custom pseudo class you want defined. The first argument to the method will be the current matching <a href="NodeSet.html">NodeSet</a>. Any other arguments are ones that you pass in. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">css</span>(<span class="ruby-string">&#39;title:regex(&quot;\w+&quot;)&#39;</span>, <span class="ruby-constant">Class</span>.<span class="ruby-identifier">new</span> { <span class="ruby-keyword">def</span> <span class="ruby-identifier">regex</span> <span class="ruby-identifier">node_set</span>, <span class="ruby-identifier">regex</span> <span class="ruby-identifier">node_set</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-string">&#39;some_attribute&#39;</span>] <span class="ruby-operator">=~</span> <span class="ruby-node">/#{regex}/</span> } <span class="ruby-keyword">end</span> }.<span class="ruby-identifier">new</span>) </pre> <p>Note that the <a href="../CSS.html">CSS</a> query string is case-sensitive with regards to your document type. That is, if you&#39;re looking for “H1” in an <a href="../HTML.html">HTML</a> document, you&#39;ll never find anything, since <a href="../HTML.html">HTML</a> tags will match only lowercase <a href="../CSS.html">CSS</a> queries. However, “H1” might be found in an <a href="../XML.html">XML</a> document, where tags names are case-sensitive (e.g., “H1” is distinct from “h1”).</p> <div class="method-source-code" id="css-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 104</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">css_internal</span> <span class="ruby-keyword">self</span>, <span class="ruby-identifier">rules</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-search" 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>. <code>paths</code> must be one or more <a href="XPath.html">XPath</a> or <a href="../CSS.html">CSS</a> queries:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">search</span>(<span class="ruby-string">&quot;div.employee&quot;</span>, <span class="ruby-string">&quot;.//title&quot;</span>) </pre> <p>A hash of namespace bindings may be appended:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">search</span>(<span class="ruby-string">&#39;.//bike:tire&#39;</span>, {<span class="ruby-string">&#39;bike&#39;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;http://schwinn.com/&#39;</span>}) <span class="ruby-identifier">node</span>.<span class="ruby-identifier">search</span>(<span class="ruby-string">&#39;bike|tire&#39;</span>, {<span class="ruby-string">&#39;bike&#39;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;http://schwinn.com/&#39;</span>}) </pre> <p>For <a href="XPath.html">XPath</a> queries, a hash of variable bindings may also be appended to the namespace bindings. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">search</span>(<span class="ruby-string">&#39;.//address[@domestic=$value]&#39;</span>, <span class="ruby-keyword">nil</span>, {:<span class="ruby-identifier">value</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;Yes&#39;</span>}) </pre> <p>Custom <a href="XPath.html">XPath</a> functions and <a href="../CSS.html">CSS</a> pseudo-selectors may also be defined. To define custom functions create a class and implement the function you want to define. The first argument to the method will be the current matching <a href="NodeSet.html">NodeSet</a>. Any other arguments are ones that you pass in. Note that this class may appear anywhere in the argument list. For example:</p> <pre>node.search(&#39;.//title[regex(., &quot;\w+&quot;)]&#39;, &#39;div.employee:regex(&quot;[0-9]+&quot;)&#39; Class.new { def regex node_set, regex node_set.find_all { |node| node[&#39;some_attribute&#39;] =~ /#{regex}/ } end }.new )</pre> <p>See <a href="Searchable.html#method-i-xpath">#xpath</a> and <a href="Searchable.html#method-i-css">#css</a> for further usage help.</p> <div class="method-source-code" id="search-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 48</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">search</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">xpaths</span> = <span class="ruby-identifier">paths</span>.<span class="ruby-identifier">map</span>(<span class="ruby-operator">&amp;</span><span class="ruby-value">:to_s</span>).<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">path</span><span class="ruby-operator">|</span> (<span class="ruby-identifier">path</span> <span class="ruby-operator">=~</span> <span class="ruby-constant">LOOKS_LIKE_XPATH</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">path</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">xpath_query_from_css_rule</span>(<span class="ruby-identifier">path</span>, <span class="ruby-identifier">ns</span>) <span class="ruby-keyword">end</span>.<span class="ruby-identifier">flatten</span>.<span class="ruby-identifier">uniq</span> <span class="ruby-identifier">xpath</span>(<span class="ruby-operator">*</span>(<span class="ruby-identifier">xpaths</span> <span class="ruby-operator">+</span> [<span class="ruby-identifier">ns</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">binds</span>].<span class="ruby-identifier">compact</span>)) <span class="ruby-keyword">end</span></pre> </div> </div> <div class="aliases"> Also aliased as: <a href="Searchable.html#method-i-2F">/</a> </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 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> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">xpath</span>(<span class="ruby-string">&#39;.//title&#39;</span>) </pre> <p>A hash of namespace bindings may be appended. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">xpath</span>(<span class="ruby-string">&#39;.//foo:name&#39;</span>, {<span class="ruby-string">&#39;foo&#39;</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;http://example.org/&#39;</span>}) <span class="ruby-identifier">node</span>.<span class="ruby-identifier">xpath</span>(<span class="ruby-string">&#39;.//xmlns:name&#39;</span>, <span class="ruby-identifier">node</span>.<span class="ruby-identifier">root</span>.<span class="ruby-identifier">namespaces</span>) </pre> <p>A hash of variable bindings may also be appended to the namespace bindings. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">xpath</span>(<span class="ruby-string">&#39;.//address[@domestic=$value]&#39;</span>, <span class="ruby-keyword">nil</span>, {:<span class="ruby-identifier">value</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-string">&#39;Yes&#39;</span>}) </pre> <p>Custom <a href="XPath.html">XPath</a> functions may also be defined. To define custom functions create a class and implement the function you want to define. The first argument to the method will be the current matching <a href="NodeSet.html">NodeSet</a>. Any other arguments are ones that you pass in. Note that this class may appear anywhere in the argument list. For example:</p> <pre class="ruby"><span class="ruby-identifier">node</span>.<span class="ruby-identifier">xpath</span>(<span class="ruby-string">&#39;.//title[regex(., &quot;\w+&quot;)]&#39;</span>, <span class="ruby-constant">Class</span>.<span class="ruby-identifier">new</span> { <span class="ruby-keyword">def</span> <span class="ruby-identifier">regex</span> <span class="ruby-identifier">node_set</span>, <span class="ruby-identifier">regex</span> <span class="ruby-identifier">node_set</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-string">&#39;some_attribute&#39;</span>] <span class="ruby-operator">=~</span> <span class="ruby-node">/#{regex}/</span> } <span class="ruby-keyword">end</span> }.<span class="ruby-identifier">new</span>) </pre> <div class="method-source-code" id="xpath-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 151</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">xpath_internal</span> <span class="ruby-keyword">self</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></pre> </div> </div> </div> </section> <section id="private-instance-5Buntitled-5D-method-details" class="method-section"> <header> <h3>Private Instance Methods</h3> </header> <div id="method-i-css_internal" class="method-detail "> <div class="method-heading"> <span class="method-name">css_internal</span><span class="method-args">(node, rules, handler, ns)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="css_internal-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 170</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">css_internal</span> <span class="ruby-identifier">node</span>, <span class="ruby-identifier">rules</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span> <span class="ruby-identifier">xpath_internal</span> <span class="ruby-identifier">node</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">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-keyword">nil</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-css_rules_to_xpath" class="method-detail "> <div class="method-heading"> <span class="method-name">css_rules_to_xpath</span><span class="method-args">(rules, ns)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="css_rules_to_xpath-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 201</span> <span class="ruby-keyword">def</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">rules</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">rule</span><span class="ruby-operator">|</span> <span class="ruby-identifier">xpath_query_from_css_rule</span>(<span class="ruby-identifier">rule</span>, <span class="ruby-identifier">ns</span>) } <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-xpath_impl" class="method-detail "> <div class="method-heading"> <span class="method-name">xpath_impl</span><span class="method-args">(node, path, handler, ns, binds)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="xpath_impl-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 189</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">xpath_impl</span> <span class="ruby-identifier">node</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-identifier">binds</span> <span class="ruby-identifier">ctx</span> = <span class="ruby-constant">XPathContext</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">node</span>) <span class="ruby-identifier">ctx</span>.<span class="ruby-identifier">register_namespaces</span>(<span class="ruby-identifier">ns</span>) <span class="ruby-identifier">path</span> = <span class="ruby-identifier">path</span>.<span class="ruby-identifier">gsub</span>(<span class="ruby-regexp">/xmlns:/</span>, <span class="ruby-string">&#39; :&#39;</span>) <span class="ruby-keyword">unless</span> <span class="ruby-constant">Nokogiri</span>.<span class="ruby-identifier">uses_libxml?</span> <span class="ruby-identifier">binds</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">key</span>,<span class="ruby-identifier">value</span><span class="ruby-operator">|</span> <span class="ruby-identifier">ctx</span>.<span class="ruby-identifier">register_variable</span> <span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span>, <span class="ruby-identifier">value</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">binds</span> <span class="ruby-identifier">ctx</span>.<span class="ruby-identifier">evaluate</span>(<span class="ruby-identifier">path</span>, <span class="ruby-identifier">handler</span>) <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-xpath_internal" class="method-detail "> <div class="method-heading"> <span class="method-name">xpath_internal</span><span class="method-args">(node, paths, handler, ns, binds)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="xpath_internal-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 174</span> <span class="ruby-keyword">def</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-identifier">document</span> = <span class="ruby-identifier">node</span>.<span class="ruby-identifier">document</span> <span class="ruby-keyword">return</span> <span class="ruby-constant">NodeSet</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">document</span>) <span class="ruby-keyword">unless</span> <span class="ruby-identifier">document</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">paths</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">==</span> <span class="ruby-value">1</span> <span class="ruby-keyword">return</span> <span class="ruby-identifier">xpath_impl</span>(<span class="ruby-identifier">node</span>, <span class="ruby-identifier">paths</span>.<span class="ruby-identifier">first</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-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">combined</span><span class="ruby-operator">|</span> <span class="ruby-identifier">paths</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">path</span><span class="ruby-operator">|</span> <span class="ruby-identifier">xpath_impl</span>(<span class="ruby-identifier">node</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">handler</span>, <span class="ruby-identifier">ns</span>, <span class="ruby-identifier">binds</span>).<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">set</span><span class="ruby-operator">|</span> <span class="ruby-identifier">combined</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">set</span> } <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-xpath_query_from_css_rule" class="method-detail "> <div class="method-heading"> <span class="method-name">xpath_query_from_css_rule</span><span class="method-args">(rule, ns)</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <div class="method-source-code" id="xpath_query_from_css_rule-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/searchable.rb, line 205</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">xpath_query_from_css_rule</span> <span class="ruby-identifier">rule</span>, <span class="ruby-identifier">ns</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">class</span><span class="ruby-operator">::</span><span class="ruby-constant">IMPLIED_XPATH_CONTEXTS</span>.<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">implied_xpath_context</span><span class="ruby-operator">|</span> <span class="ruby-constant">CSS</span>.<span class="ruby-identifier">xpath_for</span>(<span class="ruby-identifier">rule</span>.<span class="ruby-identifier">to_s</span>, <span class="ruby-value">:prefix</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">implied_xpath_context</span>, <span class="ruby-value">:ns</span> =<span class="ruby-operator">&gt;</span> <span class="ruby-identifier">ns</span>) <span class="ruby-keyword">end</span>.<span class="ruby-identifier">join</span>(<span class="ruby-string">&#39; | &#39;</span>) <span class="ruby-keyword">end</span></pre> </div> </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>