1 files changed, 56 insertions, 0 deletions
diff --git a/parser/html/java/htmlparser/src/nu/validator/encoding/UserDefinedDecoder.java b/parser/html/java/htmlparser/src/nu/validator/encoding/UserDefinedDecoder.java
new file mode 100644
index 000000000..c14ca8627
--- /dev/null
+++ b/parser/html/java/htmlparser/src/nu/validator/encoding/UserDefinedDecoder.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2013-2015 Mozilla Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a 
+ * copy of this software and associated documentation files (the "Software"), 
+ * to deal in the Software without restriction, including without limitation 
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+ * and/or sell copies of the Software, and to permit persons to whom the 
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in 
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+package nu.validator.encoding;
+
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.nio.charset.CoderResult;
+
+class UserDefinedDecoder extends Decoder {
+
+    UserDefinedDecoder(Charset cs) {
+        super(cs, 1.0f, 1.0f);
+    }
+
+    @Override protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
+        // TODO figure out if it's worthwhile to optimize the case where both
+        // buffers are array-backed.
+        for (;;) {
+            if (!in.hasRemaining()) {
+                return CoderResult.UNDERFLOW;
+            }
+            if (!out.hasRemaining()) {
+                return CoderResult.OVERFLOW;
+            }
+            int b = (int)in.get();
+            if (b >= 0) {
+                out.put((char)b);
+            } else {
+                out.put((char)(b + 128 + 0xF780));
+            }
+        }
+    }
+
+}