# HG changeset patch
# User Jaroslav Tulach <jaroslav.tulach@apidesign.org>
# Date 1378733172 -7200
# Node ID 3ee4ec9577bc3d9cdbfda8a9d9ddeff5c369ca7a
# Parent  46e2b4ef85a443453942bc15e9b4f270a3af16eb
Basic implementation of String.split

diff -r 46e2b4ef85a4 -r 3ee4ec9577bc rt/emul/compact/src/test/java/org/apidesign/bck2brwsr/tck/RegExpSplitTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/emul/compact/src/test/java/org/apidesign/bck2brwsr/tck/RegExpSplitTest.java	Mon Sep 09 15:26:12 2013 +0200
@@ -0,0 +1,50 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.tck;
+
+import java.util.Arrays;
+import org.apidesign.bck2brwsr.vmtest.Compare;
+import org.apidesign.bck2brwsr.vmtest.VMTest;
+import org.testng.annotations.Factory;
+
+/**
+ *
+ * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ */
+public class RegExpSplitTest {
+
+    public @Compare Object splitSpace() {
+        return Arrays.asList("How are you today?".split(" "));
+    }
+
+    public @Compare Object splitSpaceTrimMinusOne() {
+        return Arrays.asList(" How are you today? ".split(" ", -1));
+    }
+
+    public @Compare Object splitSpaceTrimZero() {
+        return Arrays.asList(" How are you today? ".split(" ", 0));
+    }
+
+    public @Compare Object splitSpaceLimit2() {
+        return Arrays.asList("How are you today?".split(" ", 2));
+    }
+    
+    @Factory public static Object[] create() {
+        return VMTest.create(RegExpSplitTest.class);
+    }
+}
diff -r 46e2b4ef85a4 -r 3ee4ec9577bc rt/emul/mini/src/main/java/java/lang/String.java
--- a/rt/emul/mini/src/main/java/java/lang/String.java	Mon Sep 09 06:08:00 2013 +0200
+++ b/rt/emul/mini/src/main/java/java/lang/String.java	Mon Sep 09 15:26:12 2013 +0200
@@ -2315,8 +2315,35 @@
      * @spec JSR-51
      */
     public String[] split(String regex, int limit) {
-        throw new UnsupportedOperationException("Needs regexp");
+        if (limit <= 0) {
+            Object[] arr = splitImpl(this, regex, Integer.MAX_VALUE);
+            int to = arr.length;
+            if (limit == 0) {
+                while (to > 1 && ((String)arr[--to]).isEmpty()) {
+                }
+                to++;
+            }
+            String[] ret = new String[to];
+            System.arraycopy(arr, 0, ret, 0, to);
+            return ret;
+        } else {
+            Object[] arr = splitImpl(this, regex, limit);
+            String[] ret = new String[arr.length];
+            int pos = 0;
+            for (int i = 0; i < arr.length; i++) {
+                final String s = (String)arr[i];
+                ret[i] = s;
+                pos = indexOf(s, pos) + s.length();
+            }
+            ret[arr.length - 1] += substring(pos);
+            return ret;
+        }
     }
+    
+    @JavaScriptBody(args = { "str", "regex", "limit"}, body = 
+        "return str.split(new RegExp(regex), limit);"
+    )
+    private static native Object[] splitImpl(String str, String regex, int limit);
 
     /**
      * Splits this string around matches of the given <a