1 files changed, 61 insertions, 0 deletions
diff --git a/parser/html/java/htmlparser/src/nu/validator/encoding/FallibleSingleByteDecoder.java b/parser/html/java/htmlparser/src/nu/validator/encoding/FallibleSingleByteDecoder.java
new file mode 100644
index 0000000000..34a1f36b5a
--- /dev/null
+++ b/parser/html/java/htmlparser/src/nu/validator/encoding/FallibleSingleByteDecoder.java
@@ -0,0 +1,61 @@
+/*
+ * 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.CoderResult;
+
+public final class FallibleSingleByteDecoder extends InfallibleSingleByteDecoder {
+
+    public FallibleSingleByteDecoder(Encoding cs, char[] upperHalf) {
+        super(cs, upperHalf);
+    }
+
+    @Override protected CoderResult decodeLoop(ByteBuffer in, CharBuffer out) {
+        if (!this.report) {
+            return super.decodeLoop(in, out);
+        } else {
+            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 {
+                    char mapped = this.upperHalf[b + 128];
+                    if (mapped == '\uFFFD') {
+                        in.position(in.position() - 1);
+                        return CoderResult.malformedForLength(1);
+                    }
+                    out.put(mapped);
+                }
+            }
+        }
+    }
+
+}