XML/DOM serialization
< XML
XML/DOM serialization
You are encouraged to solve this task according to the task description, using any language you may know.
You are encouraged to solve this task according to the task description, using any language you may know.
Create a simple DOM and having it serialize to:
<?xml version="1.0" ?> <root> <element> Some text here </element> </root>
E
Implementation: E-on-Java
This makes use of XML libraries provided with Java.
def document := <unsafe:javax.xml.parsers.makeDocumentBuilderFactory> \ .newInstance() \ .newDocumentBuilder() \ .getDOMImplementation() \ .createDocument(null, "root", null) def root := document.getDocumentElement() root.appendChild( def element := document.createElement("element")) element.appendChild( document.createTextNode("Some text here")) println(document.saveXML(root))
(On the use of <unsafe>
: The class has not yet been reviewed for E safety, so <import:...makeDocumentBuilderFactory>
is not yet allowed. The review would probably be straightforward.)
JavaScript
Interpreter: Firefox 2.0
DOM
var doc = document.implementation.createDocument( null, 'root', null ); var root = doc.documentElement; var element = doc.createElement( 'element' ); root.appendChild( element ); element.appendChild( document.createTextNode('Some text here') ); var xmlString = new XMLSerializer().serializeToString( doc );
E4X
var xml = <root> <element>Some text here</element> </root>; var xmlString = xml.toXMLString();
E4X — with processing instruction
XML.ignoreProcessingInstructions = false; var xml = <?xml version="1.0"?> <root> <element>Some text here</element> </root>; var xmlString = xml.toXMLString();
Perl
use XML::DOM::BagOfTricks qw(createDocument createTextElement); my ($doc, $root) = createDocument('root'); $root->appendChild( createTextElement($doc, 'element', 'Some text here') ); print $doc->toString; Output: <root><element>Some text here</element></root>
PHP
Interpreter: PHP 5
<?php $dom = new DOMDocument();//the constructor also takes the version and char-encoding as it's two respective parameters $dom->formatOutput = true;//format the outputted xml $root = $dom->createElement('root'); $element = $dom->createElement('element'); $element->appendChild($dom->createTextNode('Some text here')); $root->appendChild($element); $dom->appendChild($root); $xmlstring = $dom->saveXML();
Python
Interpreter: Python 2.5
from xml.dom.minidom import getDOMImplementation dom = getDOMImplementation() document = dom.createDocument(None, "root", None) topElement = document.documentElement firstElement = document.createElement("element") topElement.appendChild(firstElement) textNode = document.createTextNode("Some text here") firstElement.appendChild(textNode) xmlString = document.toprettyxml(" " * 4)
Interpreter: Python 2.5
from xml.etree import ElementTree as et root = et.Element("root") et.SubElement(root, "element").text = "Some text here" xmlString = et.tostring(root)
Ruby
require("rexml/document") include REXML (xml = Document.new) << XMLDecl.new root=xml.add_element('root') element=root.add_element('element') element.add_text('Some text here') puts xml.to_s(0)
XSLT
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="xml" indent="yes" /> <xsl:template match="/"> <!-- replace the root of the incoming document with our own model --> <xsl:element name="root"> <xsl:element name="element"> <xsl:text>Some text here</xsl:text> </xsl:element> </xsl:element> </xsl:template> </xsl:stylesheet>