mondo improvements to DTD

git-svn-id: svn://10.0.0.236/trunk@19137 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/htmlparser/src/nsScanner.cpp

@@ -520,6 +520,21 @@ nsString& nsScanner::GetBuffer(void) {
   return mBuffer;
 }
 
+/**
+ *  Call this to copy bytes out of the scanner that have not yet been consumed
+ *  by the tokenization process.
+ *  
+ *  @update  gess 5/12/98
+ *  @param   aCopyBuffer is where the scanner buffer will be copied to
+ *  @return  nada
+ */
+void nsScanner::CopyUnusedData(nsString& aCopyBuffer) {
+  PRInt32 theLen=mBuffer.Length();
+  if(0<theLen) {
+    mBuffer.Right(aCopyBuffer,theLen-mOffset);
+  }
+}
+
 /**
  *  Retrieve the name of the file that the scanner is reading from.
  *  In some cases, it's just a given name, because the scanner isn't