Remove the needed splitting on the URI level using a seperator.

Author: marchermans

src/main/java/cpw/mods/niofs/layzip/LayeredZipFileSystemProvider.java

@@ -19,6 +19,8 @@ public class LayeredZipFileSystemProvider extends PathFileSystemProvider
     public static final String INDICATOR = "!";
     public static final String SEPARATOR =  INDICATOR + "/";
 
+    public static final String URI_SPLIT_REGEX = "((?<=(\\.zip)(?!(\\!))\\/)|\\!\\/)";
+
 
     @Override
     public String getScheme() {
@@ -28,7 +30,7 @@ public String getScheme() {
     @Override
     public FileSystem newFileSystem(final URI uri, final Map<String, ?> env) throws IOException
     {
-        final String[] sections = uri.getRawSchemeSpecificPart().split(SEPARATOR);
+        final String[] sections = uri.getRawSchemeSpecificPart().split(URI_SPLIT_REGEX);
         FileSystem workingSystem = FileSystems.getDefault(); //Grab the normal disk FS.
 
         String keyPrefix = "";

src/test/java/cpw/mods/niofs/layfs/TestLayeredZipFS.java

@@ -31,6 +31,22 @@ public void testUriParsingAndAccess() throws URISyntaxException, IOException
         assertIterableEquals(sourceLines, lines);
     }
 
+    @Test
+    public void testWithSplitterUriParsingAndAccess() throws URISyntaxException, IOException
+    {
+
+        final URI filePathUri = new URI(
+          "jij:src/test/resources/dir_in_dir_in_dir.zip/dir_in_dir.zip/dir1.zip/"
+        );
+        final FileSystem zipFS = FileSystems.newFileSystem(filePathUri, new HashMap<>());
+
+        final Path pathInText = zipFS.getPath("masktest.txt");
+        final List<String> lines = Files.readAllLines(pathInText);
+        final List<String> sourceLines = List.of("dir1");
+
+        assertIterableEquals(sourceLines, lines);
+    }
+
     @Test
     public void testUriConversion() throws URISyntaxException, IOException {
         final URI filePathUri = new URI(