diff -r 106c5d280835 -r ad36a104623f java/alt2xml-lib-input/src/cz/frantovo/alt2xml/Alt2XmlReaderFactory.java
--- a/java/alt2xml-lib-input/src/cz/frantovo/alt2xml/Alt2XmlReaderFactory.java	Sun Jun 08 00:01:29 2014 +0200
+++ b/java/alt2xml-lib-input/src/cz/frantovo/alt2xml/Alt2XmlReaderFactory.java	Sun Jun 08 09:53:51 2014 +0200
@@ -27,10 +27,10 @@
 public interface Alt2XmlReaderFactory {
 
 	/**
-	 * @param systemId system ID of the document to be read
+	 * @param inputSource  source of the document to be read
 	 * @return whether this alternative format is supported
 	 */
-	public boolean canRead(String systemId);
+	public boolean canRead(AltInputSource inputSource);
 
 	public XMLReader getReader() throws SAXException;
 }