1 files changed, 40 insertions, 0 deletions
diff --git a/xpcom/io/nsIConverterInputStream.idl b/xpcom/io/nsIConverterInputStream.idl
new file mode 100644
index 0000000000..7f35d8c5ce
--- /dev/null
+++ b/xpcom/io/nsIConverterInputStream.idl
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIUnicharInputStream.idl"
+
+interface nsIInputStream;
+
+/**
+ * A unichar input stream that wraps an input stream.
+ * This allows reading unicode strings from a stream, automatically converting
+ * the bytes from a selected character encoding.
+ */
+[scriptable, uuid(FC66FFB6-5404-4908-A4A3-27F92FA0579D)]
+interface nsIConverterInputStream : nsIUnicharInputStream {
+    /**
+     * Default replacement char value, U+FFFD REPLACEMENT CHARACTER.
+     */
+    const char16_t DEFAULT_REPLACEMENT_CHARACTER = 0xFFFD;
+
+    /**
+     * Initialize this stream.
+     * @param aStream 
+     *        The underlying stream to read from.
+     * @param aCharset
+     *        The character encoding to use for converting the bytes of the
+     *        stream. A null charset will be interpreted as UTF-8.
+     * @param aBufferSize
+     *        How many bytes to buffer.
+     * @param aReplacementChar
+     *        The character to replace unknown byte sequences in the stream
+     *        with. The standard replacement character is U+FFFD.
+     *        A value of 0x0000 will cause an exception to be thrown if unknown
+     *        byte sequences are encountered in the stream.
+     */
+    void init (in nsIInputStream aStream, in string aCharset,
+               in long aBufferSize, in char16_t aReplacementChar);
+};
+