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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2009, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.xml.parsing
import java.net.URL
import scala.io.Source
/**
* @author Burak Emir
* @version 1.0
*/
trait ExternalSources { self: ExternalSources with MarkupParser with MarkupHandler =>
private def externalSourceFromURL(url: URL): Source = {
import java.io.{BufferedReader, InputStreamReader}
val in =
new BufferedReader(
new InputStreamReader(
url.openStream()))
//@todo: replace this hack with proper Source implementation
val str = new StringBuilder()
var inputLine: String = null
//while (inputLine = in.readLine()) != null) {
while ({inputLine = in.readLine(); inputLine} ne 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 += 1; str.charAt(i) }
}
val iter = newIter
def reset: Source = new MyClass
/*override var*/ descr = url.toExternalForm()
}
new MyClass
}
/** ...
*
* @param systemId ...
* @return ...
*/
def externalSource(systemId: String): Source = {
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)
}
}
|
