Scala and html parsing

Question

How do you load an html dom document into scala. The XML singleton had errors when trying to load the xlns tags.

import java.net._
import java.io._
import scala.xml._

object NetParse {

   import java.net.{URLConnection, URL}
   import scala.xml._

   def netParse(sUrl:String): Elem = {
       var url = new URL(sUrl)
       var connect = url.openConnection


       XML.load(connect.getInputStream)
   }


}

---

Finaly Found resolution! - Requires scala 2.7.7 or higher to work (2.7.0 has a fatal bug) How-to-use-TagSoup-with-Scala-XML

my Blog

Answer 1

This may help you Processing real world HTML as if it were XML in scala

Answer 2

Try using scala.xml.parsing.XhtmlParser instead.

Answer 3

/* 
Copyright (c) 2008 Florian Hars, BIK Aschpurwis+Behrens GmbH, Hamburg 
Copyright (c) 2002-2008 EPFL, Lausanne, unless otherwise specified. 
All rights reserved. 

This software was developed by the Programming Methods Laboratory of the 
Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland. 

Permission to use, copy, modify, and distribute this software in source 
or binary form for any purpose with or without fee is hereby granted, 
provided that the following conditions are met: 

1. Redistributions of source code must retain the above copyright 
  notice, this list of conditions and the following disclaimer. 

2. Redistributions in binary form must reproduce the above copyright 
  notice, this list of conditions and the following disclaimer in the 
  documentation and/or other materials provided with the distribution. 

3. Neither the name of the EPFL nor the names of its contributors 
  may be used to endorse or promote products derived from this 
  software without specific prior written permission. 


 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 
 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
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 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 SUCH DAMAGE. 
*/ 

package tagsoup 

import org.xml.sax.InputSource 
import javax.xml.parsers.SAXParser 
import org.ccil.cowan.tagsoup.jaxp.SAXFactoryImpl 
import scala.xml.parsing.FactoryAdapter 
import scala.xml._ 

class TagSoupFactoryAdapter extends FactoryAdapter { 

  val parserFactory = new SAXFactoryImpl 
  parserFactory.setNamespaceAware(false) 

  val emptyElements = Set("area", "base", "br", "col", "hr", "img", 
                      "input", "link", "meta", "param") 

  /** Tests if an XML element contains text. 
   * @return true if element named <code>localName</code> contains text. 
   */ 
  def nodeContainsText(localName: String) = !(emptyElements contains localName) 

  /** creates a node. 
  */ 
  def createNode(pre:String, label: String, attrs: MetaData, 
             scpe: NamespaceBinding, children: List[Node] ): Elem = { 
    Elem( pre, label, attrs, scpe, children:_* ); 
  } 

  /** creates a text node 
  */ 
  def createText( text:String ) = 
    Text( text ); 

  /** Ignore Processing Instructions 
  */ 
  def createProcInstr(target: String, data: String) = Nil 

  /** load XML document 
   * @param source 
   * @return a new XML document object 
   */ 
  override def loadXML(source: InputSource) = { 
    val parser: SAXParser = parserFactory.newSAXParser() 

    scopeStack.push(TopScope) 
    parser.parse(source, this) 
    scopeStack.pop 
    rootElem 
  } 

}

How-to-use-TagSoup-with-Scala-XML