constructingparser.scala

来自「JAVA 语言的函数式编程扩展」· SCALA 代码 · 共 68 行

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2006, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |                                         **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

// $Id: ConstructingParser.scala 8624 2006-09-08 09:33:07Z michelou $


package scala.xml.parsing

import java.io.File

import scala.io.Source

object ConstructingParser {

  def fromFile(inp: File, preserveWS: Boolean) = {
    val p = new ConstructingParser(Source.fromFile(inp), preserveWS)
    p.nextch
    p
  }

  def fromSource(inp: Source, preserveWS: Boolean) = {
    val p = new ConstructingParser(inp, preserveWS)
    p.nextch
    p
  }
}

/** An xml parser. parses XML and invokes callback methods of a MarkupHandler.
 *  Don't forget to call next.ch on a freshly instantiated parser in order to
 *  initialize it. If you get the parser from the object method, initialization
 *  is already done for you.
 *
 *<pre>
object parseFromURL {
  def main(args:Array[String]): Unit = {
    val url = args(0);
    val src = scala.io.Source.fromURL(url);
    val cpa = scala.xml.parsing.ConstructingParser.fromSource(src, false); // fromSource initializes automatically
    val doc = cpa.document();

    // let's see what it is
    val ppr = new scala.xml.PrettyPrinter(80,5);
    val ele = doc.docElem;
    Console.println("finished parsing");
    val out = ppr.format(ele);
    Console.println(out);
  }
}
</pre>
 */
class ConstructingParser(inp: Source, presWS:Boolean)
extends  ConstructingHandler
with     ExternalSources
with     MarkupParser  {

  // default impl. of Logged
  override def log(msg: String): Unit = {}

  val preserveWS = presWS
  val input = inp
}