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gaia/apps/email/js/ext/imap/protocol/snippetparser.js

@@ -0,0 +1,45 @@
+define(['./textparser'], function($textparser) {
+
+var TextParser = $textparser.TextParser;
+
+function bufferAppend(buffer1, buffer2) {
+  var tmp = new Uint8Array(buffer1.byteLength + buffer2.byteLength);
+  tmp.set(new Uint8Array(buffer1), 0);
+  tmp.set(new Uint8Array(buffer2), buffer1.byteLength);
+  return tmp.buffer;
+};
+
+/**
+ * Wrapper around the textparser, accumulates buffer content and returns it as
+ * part of the .complete step.
+ */
+function SnippetParser(partDef) {
+  TextParser.apply(this, arguments);
+}
+
+SnippetParser.prototype = {
+  parse: function(buffer) {
+    if (!this._buffer) {
+      this._buffer = buffer;
+    } else {
+      this._buffer = bufferAppend(this._buffer, buffer);
+    }
+
+    // do some magic parsing
+    TextParser.prototype.parse.apply(this, arguments);
+  },
+
+  complete: function() {
+    var content =
+      TextParser.prototype.complete.apply(this, arguments);
+
+    content.buffer = this._buffer;
+    return content;
+  }
+};
+
+  return {
+    SnippetParser: SnippetParser
+  };
+
+});