1 files changed, 104 insertions, 0 deletions
diff --git a/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/nsCodingStateMachine.h b/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/nsCodingStateMachine.h
new file mode 100644
index 0000000..819f9ab
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+++ b/src/ext/libcharsetdetect/mozilla/extensions/universalchardet/src/base/nsCodingStateMachine.h
@@ -0,0 +1,104 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+#ifndef nsCodingStateMachine_h__
+#define nsCodingStateMachine_h__
+
+#include "nsPkgInt.h"
+
+typedef enum {
+   eStart = 0,
+   eError = 1,
+   eItsMe = 2 
+} nsSMState;
+
+#define GETCLASS(c) GETFROMPCK(((unsigned char)(c)), mModel->classTable)
+
+//state machine model
+typedef struct 
+{
+  nsPkgInt classTable;
+  PRUint32 classFactor;
+  nsPkgInt stateTable;
+  const PRUint32* charLenTable;
+  const char* name;
+} SMModel;
+
+class nsCodingStateMachine {
+public:
+  nsCodingStateMachine(const SMModel* sm) : mModel(sm) { mCurrentState = eStart; }
+  nsSMState NextState(char c){
+    //for each byte we get its class , if it is first byte, we also get byte length
+    PRUint32 byteCls = GETCLASS(c);
+    if (mCurrentState == eStart)
+    { 
+      mCurrentBytePos = 0; 
+      mCurrentCharLen = mModel->charLenTable[byteCls];
+    }
+    //from byte's class and stateTable, we get its next state
+    mCurrentState=(nsSMState)GETFROMPCK(mCurrentState*(mModel->classFactor)+byteCls,
+                                       mModel->stateTable);
+    mCurrentBytePos++;
+    return mCurrentState;
+  }
+  PRUint32  GetCurrentCharLen(void) {return mCurrentCharLen;}
+  void      Reset(void) {mCurrentState = eStart;}
+  const char * GetCodingStateMachine() {return mModel->name;}
+
+protected:
+  nsSMState mCurrentState;
+  PRUint32 mCurrentCharLen;
+  PRUint32 mCurrentBytePos;
+
+  const SMModel *mModel;
+};
+
+extern const SMModel UTF8SMModel;
+extern const SMModel Big5SMModel;
+extern const SMModel EUCJPSMModel;
+extern const SMModel EUCKRSMModel;
+extern const SMModel EUCTWSMModel;
+extern const SMModel GB18030SMModel;
+extern const SMModel SJISSMModel;
+
+
+extern const SMModel HZSMModel;
+extern const SMModel ISO2022CNSMModel;
+extern const SMModel ISO2022JPSMModel;
+extern const SMModel ISO2022KRSMModel;
+
+#endif /* nsCodingStateMachine_h__ */
+