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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>class Nokogiri::XML::Reader - 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><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-from_io">::from_io</a> <li ><a href="#method-c-from_memory">::from_memory</a> <li ><a href="#method-i-attr_nodes">#attr_nodes</a> <li ><a href="#method-i-attribute">#attribute</a> <li ><a href="#method-i-attribute_at">#attribute_at</a> <li ><a href="#method-i-attribute_count">#attribute_count</a> <li ><a href="#method-i-attribute_nodes">#attribute_nodes</a> <li ><a href="#method-i-attributes">#attributes</a> <li ><a href="#method-i-attributes-3F">#attributes?</a> <li ><a href="#method-i-base_uri">#base_uri</a> <li ><a href="#method-i-default-3F">#default?</a> <li ><a href="#method-i-depth">#depth</a> <li ><a href="#method-i-each">#each</a> <li ><a href="#method-i-empty_element-3F">#empty_element?</a> <li ><a href="#method-i-inner_xml">#inner_xml</a> <li ><a href="#method-i-lang">#lang</a> <li ><a href="#method-i-local_name">#local_name</a> <li ><a href="#method-i-name">#name</a> <li ><a href="#method-i-namespace_uri">#namespace_uri</a> <li ><a href="#method-i-namespaces">#namespaces</a> <li ><a href="#method-i-node_type">#node_type</a> <li ><a href="#method-i-outer_xml">#outer_xml</a> <li ><a href="#method-i-prefix">#prefix</a> <li ><a href="#method-i-read">#read</a> <li ><a href="#method-i-self_closing-3F">#self_closing?</a> <li ><a href="#method-i-state">#state</a> <li ><a href="#method-i-value">#value</a> <li ><a href="#method-i-value-3F">#value?</a> <li ><a href="#method-i-xml_version">#xml_version</a> </ul> </div> </div> </nav> <main role="main" aria-labelledby="class-Nokogiri::XML::Reader"> <h1 id="class-Nokogiri::XML::Reader" class="class"> class Nokogiri::XML::Reader </h1> <section class="description"> <p>The <a href="Reader.html">Reader</a> parser allows you to effectively pull parse an <a href="../XML.html">XML</a> document. Once instantiated, call <a href="Reader.html#method-i-each">#each</a> to iterate over each node. Note that you may only iterate over the document once!</p> <p><a href="Reader.html">Nokogiri::XML::Reader</a> parses an <a href="../XML.html">XML</a> document similar to the way a cursor would move. The <a href="Reader.html">Reader</a> is given an <a href="../XML.html">XML</a> document, and yields nodes to an each block.</p> <p>Here is an example of usage:</p> <pre class="ruby"><span class="ruby-identifier">reader</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">Reader</span>(<span class="ruby-string">&quot; &lt;x xmlns:tenderlove=&#39;http://tenderlovemaking.com/&#39;&gt; &lt;tenderlove:foo awesome=&#39;true&#39;&gt;snuggles!&lt;/tenderlove:foo&gt; &lt;/x&gt; &quot;</span>) <span class="ruby-identifier">reader</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-comment"># node is an instance of Nokogiri::XML::Reader</span> <span class="ruby-identifier">puts</span> <span class="ruby-identifier">node</span>.<span class="ruby-identifier">name</span> <span class="ruby-keyword">end</span> </pre> <p>Note that <a href="Reader.html#method-i-each">#each</a> can only be called once!! Once the cursor moves through the entire document, you must parse the document again. So make sure that you capture any information you need during the first iteration.</p> <p>The <a href="Reader.html">Reader</a> parser is good for when you need the speed of a <a href="SAX.html">SAX</a> parser, but do not want to write a <a href="Document.html">Document</a> handler.</p> </section> <section id="5Buntitled-5D" class="documentation-section"> <section class="constants-list"> <header> <h3>Constants</h3> </header> <dl> <dt id="TYPE_ATTRIBUTE">TYPE_ATTRIBUTE <dd><p>Attribute node type</p> <dt id="TYPE_CDATA">TYPE_CDATA <dd><p><a href="CDATA.html">CDATA</a> node type</p> <dt id="TYPE_COMMENT">TYPE_COMMENT <dd><p><a href="Comment.html">Comment</a> node type</p> <dt id="TYPE_DOCUMENT">TYPE_DOCUMENT <dd><p><a href="Document.html">Document</a> node type</p> <dt id="TYPE_DOCUMENT_FRAGMENT">TYPE_DOCUMENT_FRAGMENT <dd><p><a href="Document.html">Document</a> Fragment node type</p> <dt id="TYPE_DOCUMENT_TYPE">TYPE_DOCUMENT_TYPE <dd><p><a href="Document.html">Document</a> Type node type</p> <dt id="TYPE_ELEMENT">TYPE_ELEMENT <dd><p><a href="Element.html">Element</a> node type</p> <dt id="TYPE_END_ELEMENT">TYPE_END_ELEMENT <dd><p><a href="Element.html">Element</a> end node type</p> <dt id="TYPE_END_ENTITY">TYPE_END_ENTITY <dd><p>Entity end node type</p> <dt id="TYPE_ENTITY">TYPE_ENTITY <dd><p>Entity node type</p> <dt id="TYPE_ENTITY_REFERENCE">TYPE_ENTITY_REFERENCE <dd><p>Entity Reference node type</p> <dt id="TYPE_NONE">TYPE_NONE <dd> <dt id="TYPE_NOTATION">TYPE_NOTATION <dd><p><a href="Notation.html">Notation</a> node type</p> <dt id="TYPE_PROCESSING_INSTRUCTION">TYPE_PROCESSING_INSTRUCTION <dd><p>PI node type</p> <dt id="TYPE_SIGNIFICANT_WHITESPACE">TYPE_SIGNIFICANT_WHITESPACE <dd><p>Significant Whitespace node type</p> <dt id="TYPE_TEXT">TYPE_TEXT <dd><p><a href="Text.html">Text</a> node type</p> <dt id="TYPE_WHITESPACE">TYPE_WHITESPACE <dd><p>Whitespace node type</p> <dt id="TYPE_XML_DECLARATION">TYPE_XML_DECLARATION <dd><p><a href="../XML.html">XML</a> Declaration node type</p> </dl> </section> <section class="attribute-method-details" class="method-section"> <header> <h3>Attributes</h3> </header> <div id="attribute-i-encoding" class="method-detail"> <div class="method-heading attribute-method-heading"> <span class="method-name">encoding</span><span class="attribute-access-type">[R]</span> </div> <div class="method-description"> <p>The encoding for the document</p> </div> </div> <div id="attribute-i-errors" class="method-detail"> <div class="method-heading attribute-method-heading"> <span class="method-name">errors</span><span class="attribute-access-type">[RW]</span> </div> <div class="method-description"> <p>A list of errors encountered while parsing</p> </div> </div> <div id="attribute-i-source" class="method-detail"> <div class="method-heading attribute-method-heading"> <span class="method-name">source</span><span class="attribute-access-type">[R]</span> </div> <div class="method-description"> <p>The <a href="../XML.html">XML</a> source</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-from_io" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> from_io(io, url = nil, encoding = nil, options = 0) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Create a new reader that parses <code>io</code></p> <div class="method-source-code" id="from_io-source"> <pre>static VALUE from_io(int argc, VALUE *argv, VALUE klass) { VALUE rb_io, rb_url, encoding, rb_options; xmlTextReaderPtr reader; const char * c_url = NULL; const char * c_encoding = NULL; int c_options = 0; VALUE rb_reader, args[3]; rb_scan_args(argc, argv, &quot;13&quot;, &amp;rb_io, &amp;rb_url, &amp;encoding, &amp;rb_options); if (!RTEST(rb_io)) rb_raise(rb_eArgError, &quot;io cannot be nil&quot;); if (RTEST(rb_url)) c_url = StringValueCStr(rb_url); if (RTEST(encoding)) c_encoding = StringValueCStr(encoding); if (RTEST(rb_options)) c_options = (int)NUM2INT(rb_options); reader = xmlReaderForIO( (xmlInputReadCallback)io_read_callback, (xmlInputCloseCallback)io_close_callback, (void *)rb_io, c_url, c_encoding, c_options ); if(reader == NULL) { xmlFreeTextReader(reader); rb_raise(rb_eRuntimeError, &quot;couldn&#39;t create a parser&quot;); } rb_reader = Data_Wrap_Struct(klass, NULL, dealloc, reader); args[0] = rb_io; args[1] = rb_url; args[2] = encoding; rb_obj_call_init(rb_reader, 3, args); return rb_reader; }</pre> </div> </div> </div> <div id="method-c-from_memory" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> from_memory(string, url = nil, encoding = nil, options = 0) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Create a new reader that parses <code>string</code></p> <div class="method-source-code" id="from_memory-source"> <pre>static VALUE from_memory(int argc, VALUE *argv, VALUE klass) { VALUE rb_buffer, rb_url, encoding, rb_options; xmlTextReaderPtr reader; const char * c_url = NULL; const char * c_encoding = NULL; int c_options = 0; VALUE rb_reader, args[3]; rb_scan_args(argc, argv, &quot;13&quot;, &amp;rb_buffer, &amp;rb_url, &amp;encoding, &amp;rb_options); if (!RTEST(rb_buffer)) rb_raise(rb_eArgError, &quot;string cannot be nil&quot;); if (RTEST(rb_url)) c_url = StringValueCStr(rb_url); if (RTEST(encoding)) c_encoding = StringValueCStr(encoding); if (RTEST(rb_options)) c_options = (int)NUM2INT(rb_options); reader = xmlReaderForMemory( StringValuePtr(rb_buffer), (int)RSTRING_LEN(rb_buffer), c_url, c_encoding, c_options ); if(reader == NULL) { xmlFreeTextReader(reader); rb_raise(rb_eRuntimeError, &quot;couldn&#39;t create a parser&quot;); } rb_reader = Data_Wrap_Struct(klass, NULL, dealloc, reader); args[0] = rb_buffer; args[1] = rb_url; args[2] = encoding; rb_obj_call_init(rb_reader, 3, args); return rb_reader; }</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-attribute" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> attribute(name) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the value of attribute named <code>name</code></p> <div class="method-source-code" id="attribute-source"> <pre>static VALUE reader_attribute(VALUE self, VALUE name) { xmlTextReaderPtr reader; xmlChar *value ; VALUE rb_value; Data_Get_Struct(self, xmlTextReader, reader); if(NIL_P(name)) return Qnil; name = StringValue(name) ; value = xmlTextReaderGetAttribute(reader, (xmlChar*)StringValueCStr(name)); if(value == NULL) return Qnil; rb_value = NOKOGIRI_STR_NEW2(value); xmlFree(value); return rb_value; }</pre> </div> </div> </div> <div id="method-i-attribute_at" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> attribute_at(index) </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the value of attribute at <code>index</code></p> <div class="method-source-code" id="attribute_at-source"> <pre>static VALUE attribute_at(VALUE self, VALUE index) { xmlTextReaderPtr reader; xmlChar *value; VALUE rb_value; Data_Get_Struct(self, xmlTextReader, reader); if(NIL_P(index)) return Qnil; index = rb_Integer(index); value = xmlTextReaderGetAttributeNo( reader, (int)NUM2INT(index) ); if(value == NULL) return Qnil; rb_value = NOKOGIRI_STR_NEW2(value); xmlFree(value); return rb_value; }</pre> </div> </div> </div> <div id="method-i-attribute_count" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> attribute_count </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the number of attributes for the current node</p> <div class="method-source-code" id="attribute_count-source"> <pre>static VALUE attribute_count(VALUE self) { xmlTextReaderPtr reader; int count; Data_Get_Struct(self, xmlTextReader, reader); count = xmlTextReaderAttributeCount(reader); if(count == -1) return Qnil; return INT2NUM((long)count); }</pre> </div> </div> </div> <div id="method-i-attribute_nodes" class="method-detail "> <div class="method-heading"> <span class="method-name">attribute_nodes</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get a list of attributes for the current node</p> <div class="method-source-code" id="attribute_nodes-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/reader.rb, line 97</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">attribute_nodes</span> <span class="ruby-identifier">nodes</span> = <span class="ruby-identifier">attr_nodes</span> <span class="ruby-identifier">nodes</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">instance_variable_set</span>(<span class="ruby-value">:@_r</span>, <span class="ruby-keyword">self</span>) } <span class="ruby-identifier">nodes</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-attributes" class="method-detail "> <div class="method-heading"> <span class="method-name">attributes</span><span class="method-args">()</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get a list of attributes for the current node.</p> <div class="method-source-code" id="attributes-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/reader.rb, line 89</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">attributes</span> <span class="ruby-constant">Hash</span>[<span class="ruby-identifier">attribute_nodes</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">name</span>, <span class="ruby-identifier">node</span>.<span class="ruby-identifier">to_s</span>] }].<span class="ruby-identifier">merge</span>(<span class="ruby-identifier">namespaces</span> <span class="ruby-operator">||</span> {}) <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-attributes-3F" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> attributes? </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Does this node have attributes?</p> <div class="method-source-code" id="attributes-3F-source"> <pre>static VALUE attributes_eh(VALUE self) { xmlTextReaderPtr reader; int eh; Data_Get_Struct(self, xmlTextReader, reader); eh = has_attributes(reader); if(eh == 0) return Qfalse; if(eh == 1) return Qtrue; return Qnil; }</pre> </div> </div> </div> <div id="method-i-base_uri" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> base_uri </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the xml:base of the node</p> <div class="method-source-code" id="base_uri-source"> <pre>static VALUE base_uri(VALUE self) { xmlTextReaderPtr reader; const char * base_uri; Data_Get_Struct(self, xmlTextReader, reader); base_uri = (const char *)xmlTextReaderBaseUri(reader); if (base_uri == NULL) return Qnil; return NOKOGIRI_STR_NEW2(base_uri); }</pre> </div> </div> </div> <div id="method-i-default-3F" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> default? </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Was an attribute generated from the default value in the <a href="DTD.html">DTD</a> or schema?</p> <div class="method-source-code" id="default-3F-source"> <pre>static VALUE default_eh(VALUE self) { xmlTextReaderPtr reader; int eh; Data_Get_Struct(self, xmlTextReader, reader); eh = xmlTextReaderIsDefault(reader); if(eh == 0) return Qfalse; if(eh == 1) return Qtrue; return Qnil; }</pre> </div> </div> </div> <div id="method-i-depth" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> depth </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the depth of the node</p> <div class="method-source-code" id="depth-source"> <pre>static VALUE depth(VALUE self) { xmlTextReaderPtr reader; int depth; Data_Get_Struct(self, xmlTextReader, reader); depth = xmlTextReaderDepth(reader); if(depth == -1) return Qnil; return INT2NUM((long)depth); }</pre> </div> </div> </div> <div id="method-i-each" class="method-detail "> <div class="method-heading"> <span class="method-name">each</span><span class="method-args">() { |cursor| ... }</span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Move the cursor through the document yielding the cursor to the block</p> <div class="method-source-code" id="each-source"> <pre><span class="ruby-comment"># File lib/nokogiri/xml/reader.rb, line 105</span> <span class="ruby-keyword">def</span> <span class="ruby-identifier">each</span> <span class="ruby-keyword">while</span> <span class="ruby-identifier">cursor</span> = <span class="ruby-keyword">self</span>.<span class="ruby-identifier">read</span> <span class="ruby-keyword">yield</span> <span class="ruby-identifier">cursor</span> <span class="ruby-keyword">end</span> <span class="ruby-keyword">end</span></pre> </div> </div> </div> <div id="method-i-empty_element-3F" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> empty_element? # &rarr; true or false </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Returns true if the current node is empty, otherwise false.</p> <div class="method-source-code" id="empty_element-3F-source"> <pre>static VALUE empty_element_p(VALUE self) { xmlTextReaderPtr reader; Data_Get_Struct(self, xmlTextReader, reader); if(xmlTextReaderIsEmptyElement(reader)) return Qtrue; return Qfalse; }</pre> </div> </div> <div class="aliases"> Also aliased as: <a href="Reader.html#method-i-self_closing-3F">self_closing?</a> </div> </div> <div id="method-i-inner_xml" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> inner_xml </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Read the contents of the current node, including child nodes and markup. Returns a utf-8 encoded string.</p> <div class="method-source-code" id="inner_xml-source"> <pre>static VALUE inner_xml(VALUE self) { xmlTextReaderPtr reader; xmlChar* value; VALUE str; Data_Get_Struct(self, xmlTextReader, reader); value = xmlTextReaderReadInnerXml(reader); str = Qnil; if(value) { str = NOKOGIRI_STR_NEW2((char*)value); xmlFree(value); } return str; }</pre> </div> </div> </div> <div id="method-i-lang" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> lang </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the xml:lang scope within which the node resides.</p> <div class="method-source-code" id="lang-source"> <pre>static VALUE lang(VALUE self) { xmlTextReaderPtr reader; const char *lang; Data_Get_Struct(self, xmlTextReader, reader); lang = (const char *)xmlTextReaderConstXmlLang(reader); if(lang == NULL) return Qnil; return NOKOGIRI_STR_NEW2(lang); }</pre> </div> </div> </div> <div id="method-i-local_name" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> local_name </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the local name of the node</p> <div class="method-source-code" id="local_name-source"> <pre>static VALUE local_name(VALUE self) { xmlTextReaderPtr reader; const char *name; Data_Get_Struct(self, xmlTextReader, reader); name = (const char *)xmlTextReaderConstLocalName(reader); if(name == NULL) return Qnil; return NOKOGIRI_STR_NEW2(name); }</pre> </div> </div> </div> <div id="method-i-name" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> name </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the name of the node. Returns a utf-8 encoded string.</p> <div class="method-source-code" id="name-source"> <pre>static VALUE name(VALUE self) { xmlTextReaderPtr reader; const char *name; Data_Get_Struct(self, xmlTextReader, reader); name = (const char *)xmlTextReaderConstName(reader); if(name == NULL) return Qnil; return NOKOGIRI_STR_NEW2(name); }</pre> </div> </div> </div> <div id="method-i-namespace_uri" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> namespace_uri </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the URI defining the namespace associated with the node</p> <div class="method-source-code" id="namespace_uri-source"> <pre>static VALUE namespace_uri(VALUE self) { xmlTextReaderPtr reader; const char *uri; Data_Get_Struct(self, xmlTextReader, reader); uri = (const char *)xmlTextReaderConstNamespaceUri(reader); if(uri == NULL) return Qnil; return NOKOGIRI_STR_NEW2(uri); }</pre> </div> </div> </div> <div id="method-i-namespaces" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> namespaces </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get a hash of namespaces for this <a href="Node.html">Node</a></p> <div class="method-source-code" id="namespaces-source"> <pre>static VALUE namespaces(VALUE self) { xmlTextReaderPtr reader; xmlNodePtr ptr; VALUE attr ; Data_Get_Struct(self, xmlTextReader, reader); attr = rb_hash_new() ; if (! has_attributes(reader)) return attr ; ptr = xmlTextReaderExpand(reader); if(ptr == NULL) return Qnil; Nokogiri_xml_node_namespaces(ptr, attr); return attr ; }</pre> </div> </div> </div> <div id="method-i-node_type" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> node_type </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the type of readers current node</p> <div class="method-source-code" id="node_type-source"> <pre>static VALUE node_type(VALUE self) { xmlTextReaderPtr reader; Data_Get_Struct(self, xmlTextReader, reader); return INT2NUM((long)xmlTextReaderNodeType(reader)); }</pre> </div> </div> </div> <div id="method-i-outer_xml" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> outer_xml </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Read the current node and its contents, including child nodes and markup. Returns a utf-8 encoded string.</p> <div class="method-source-code" id="outer_xml-source"> <pre>static VALUE outer_xml(VALUE self) { xmlTextReaderPtr reader; xmlChar *value; VALUE str = Qnil; Data_Get_Struct(self, xmlTextReader, reader); value = xmlTextReaderReadOuterXml(reader); if(value) { str = NOKOGIRI_STR_NEW2((char*)value); xmlFree(value); } return str; }</pre> </div> </div> </div> <div id="method-i-prefix" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> prefix </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the shorthand reference to the namespace associated with the node.</p> <div class="method-source-code" id="prefix-source"> <pre>static VALUE prefix(VALUE self) { xmlTextReaderPtr reader; const char *prefix; Data_Get_Struct(self, xmlTextReader, reader); prefix = (const char *)xmlTextReaderConstPrefix(reader); if(prefix == NULL) return Qnil; return NOKOGIRI_STR_NEW2(prefix); }</pre> </div> </div> </div> <div id="method-i-read" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> read </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Move the <a href="Reader.html">Reader</a> forward through the <a href="../XML.html">XML</a> document.</p> <div class="method-source-code" id="read-source"> <pre>static VALUE read_more(VALUE self) { xmlTextReaderPtr reader; xmlErrorPtr error; VALUE error_list; int ret; Data_Get_Struct(self, xmlTextReader, reader); error_list = rb_funcall(self, rb_intern(&quot;errors&quot;), 0); xmlSetStructuredErrorFunc((void *)error_list, Nokogiri_error_array_pusher); ret = xmlTextReaderRead(reader); xmlSetStructuredErrorFunc(NULL, NULL); if(ret == 1) return self; if(ret == 0) return Qnil; error = xmlGetLastError(); if(error) rb_exc_raise(Nokogiri_wrap_xml_syntax_error(error)); else rb_raise(rb_eRuntimeError, &quot;Error pulling: %d&quot;, ret); return Qnil; }</pre> </div> </div> </div> <div id="method-i-self_closing-3F" class="method-detail method-alias"> <div class="method-heading"> <span class="method-name">self_closing?</span><span class="method-args">()</span> </div> <div class="method-description"> </div> <div class="aliases"> Alias for: <a href="Reader.html#method-i-empty_element-3F">empty_element?</a> </div> </div> <div id="method-i-state" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> state </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the state of the reader</p> <div class="method-source-code" id="state-source"> <pre>static VALUE state(VALUE self) { xmlTextReaderPtr reader; Data_Get_Struct(self, xmlTextReader, reader); return INT2NUM((long)xmlTextReaderReadState(reader)); }</pre> </div> </div> </div> <div id="method-i-value" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> value </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the text value of the node if present. Returns a utf-8 encoded string.</p> <div class="method-source-code" id="value-source"> <pre>static VALUE value(VALUE self) { xmlTextReaderPtr reader; const char *value; Data_Get_Struct(self, xmlTextReader, reader); value = (const char *)xmlTextReaderConstValue(reader); if(value == NULL) return Qnil; return NOKOGIRI_STR_NEW2(value); }</pre> </div> </div> </div> <div id="method-i-value-3F" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> value? </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Does this node have a text value?</p> <div class="method-source-code" id="value-3F-source"> <pre>static VALUE value_eh(VALUE self) { xmlTextReaderPtr reader; int eh; Data_Get_Struct(self, xmlTextReader, reader); eh = xmlTextReaderHasValue(reader); if(eh == 0) return Qfalse; if(eh == 1) return Qtrue; return Qnil; }</pre> </div> </div> </div> <div id="method-i-xml_version" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> xml_version </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get the <a href="../XML.html">XML</a> version of the document being read</p> <div class="method-source-code" id="xml_version-source"> <pre>static VALUE xml_version(VALUE self) { xmlTextReaderPtr reader; const char *version; Data_Get_Struct(self, xmlTextReader, reader); version = (const char *)xmlTextReaderConstXmlVersion(reader); if(version == NULL) return Qnil; return NOKOGIRI_STR_NEW2(version); }</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-attr_nodes" class="method-detail "> <div class="method-heading"> <span class="method-callseq"> attribute_nodes </span> <span class="method-click-advice">click to toggle source</span> </div> <div class="method-description"> <p>Get a list of attributes for this <a href="Node.html">Node</a></p> <div class="method-source-code" id="attr_nodes-source"> <pre>static VALUE attribute_nodes(VALUE self) { xmlTextReaderPtr reader; xmlNodePtr ptr; VALUE attr ; Data_Get_Struct(self, xmlTextReader, reader); attr = rb_ary_new() ; if (! has_attributes(reader)) return attr ; ptr = xmlTextReaderExpand(reader); if(ptr == NULL) return Qnil; Nokogiri_xml_node_properties(ptr, attr); return attr ; }</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>
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