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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2006, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.xml.parsing;
import scala.io.Source;
import java.net._;
import java.io._;
trait ExternalSources requires (ExternalSources with MarkupParser with MarkupHandler) {
private def externalSourceFromURL(url:URL): Source = {
val in =
new BufferedReader(
new InputStreamReader(
url.openStream()));
//@todo: replace this hack with proper Source implementation
val str = new StringBuffer();
var inputLine:String = null;
//while (inputLine = in.readLine()) != null) {
while ({inputLine = in.readLine(); inputLine} != null) {
// Console.println(inputLine); // DEBUG
str.append(inputLine);
str.append('\n'); // readable output
}
in.close();
class MyClass extends Source {
def newIter = new Iterator[Char] {
var i = -1;
private val len = str.length()-1;
def hasNext = i < len;
def next = {
i = i + 1;
str.charAt(i);
}
}
val iter = newIter;
def reset: Source = new MyClass;
/*override var*/ descr = url.toExternalForm();
}
return new MyClass;
}
def externalSource(systemId: String): Source = {
//Console.println("in external source("+systemId+")");
if(systemId.startsWith("http:")) {
return externalSourceFromURL(new URL(systemId));
}
var fileStr = input.descr;
if(input.descr.startsWith("file:")) {
fileStr = input.descr.substring(5, input.descr.length());
} else
fileStr = fileStr.substring(0,
fileStr.lastIndexOf(java.io.File.separator)+1);
Source.fromFile(fileStr + systemId);
}
}
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