first check in

intl/unicharutil/src/nsHankakuToZenkaku.cpp

@@ -0,0 +1,201 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsITextTransform.h"
+#include "pratom.h"
+#include "nsUUDll.h"
+#include "nsHankakuToZenkakuCID.h"
+
+#include "nsIFactory.h"
+
+NS_DEFINE_IID(kFactoryIID, NS_IFACTORY_IID);
+NS_DEFINE_CID(kHankakuToZenkakuCID, NS_HANKAKUTOZENKAKU_CID);
+NS_DEFINE_IID(kITextTransformIID, NS_ITEXTTRANSFORM_IID);
+
+// Basic mapping from Hankaku to Zenkaku
+// Nigori and Maru is take care out side this basic mapping
+static PRUnichar gBasicMapping[0x40] =
+{
+// 0xff60
+0xff60,0x3002,0x300c,0x300d,0x3001,0x30fb,0x30f2,0x30a1,        
+// 0xff68
+0x30a3,0x30a5,0x30a7,0x30a9,0x30e3,0x30e5,0x30e7,0x30c3,        
+// 0xff70
+0x30fc,0x30a2,0x30a4,0x30a6,0x30a8,0x30aa,0x30ab,0x30ad,        
+// 0xff78
+0x30af,0x30b1,0x30b3,0x30b5,0x30b7,0x30b9,0x30bb,0x30bd,        
+// 0xff80
+0x30bf,0x30c1,0x30c4,0x30c6,0x30c8,0x30ca,0x30cb,0x30cc,        
+// 0xff88
+0x30cd,0x30ce,0x30cf,0x30d2,0x30d5,0x30d8,0x30db,0x30de,        
+// 0xff90
+0x30df,0x30e0,0x30e1,0x30e2,0x30e4,0x30e6,0x30e8,0x30e9,        
+// 0xff98
+0x30ea,0x30eb,0x30ec,0x30ed,0x30ef,0x30f3,0x309b,0x309c
+};
+
+// Do we need to check for Nigori for the next unicode ?
+#define NEED_TO_CHECK_NIGORI(u) (((0xff76<=(u))&&((u)<=0xff84))||((0xff8a<=(u))&&((u)<=0xff8e)))
+
+// Do we need to check for Maru for the next unicode ?
+#define NEED_TO_CHECK_MARU(u) ((0xff8a<=(u))&&((u)<=0xff8e))
+
+// The  unicode is in Katakana Hankaku block
+#define IS_HANKAKU(u) (0xff60==((u) & 0xffe0)) || (0xff80==((u)&0xffe0))
+#define IS_NIGORI(u) (0xff9e == (u))
+#define IS_MARU(u)   (0xff9f == (u))
+#define NIGORI_MODIFIER 1
+#define MARU_MODIFIER   2
+ 
+
+void HankakuToZenkaku (
+    const PRUnichar* aSrc, PRInt32 aLen, 
+    PRUnichar* aDest, PRInt32 aDestLen, PRInt32* oLen)
+{
+
+    PRInt32 i,j;
+    // loop from the first to the last char except the last one.
+    for(i = j = 0; i < (aLen-1); i++,j++,aSrc++, aDest++)
+    {
+       if(IS_HANKAKU(*aSrc)) {
+         // if it is in hankaku - do basic mapping first
+         *aDest = gBasicMapping[(*aSrc) - 0xff60];
+         
+         // if is some char could be modifier, and the next char
+         // is a modifier, modify it and eat one byte
+
+         if(IS_NIGORI(*(aSrc+1)) && NEED_TO_CHECK_NIGORI(*aSrc))
+         {
+            *aDest += NIGORI_MODIFIER;
+            i++; aSrc++;
+         }
+         else if(IS_MARU(*(aSrc+1)) && NEED_TO_CHECK_MARU(*aSrc)) 
+         {
+            *aDest += MARU_MODIFIER;
+            i++; aSrc++;
+         }
+       }
+       else 
+       {
+         // not in hankaku block, just copy 
+         *aDest = *aSrc;
+       }
+    }
+
+    // handle the last character
+    if(IS_HANKAKU(aSrc[i])) 
+         *aDest = gBasicMapping[(*aSrc) - 0xff60];
+    else
+         *aDest = *aSrc;
+
+    *oLen = j+1;
+}
+
+
+
+class nsHankakuToZenkaku : public nsITextTransform {
+  NS_DECL_ISUPPORTS
+
+public: 
+
+  nsHankakuToZenkaku() ;
+  virtual ~nsHankakuToZenkaku() ;
+  NS_IMETHOD Change( nsString& aText, nsString& aResult);
+
+};
+
+NS_IMPL_ISUPPORTS(nsHankakuToZenkaku, kITextTransformIID);
+
+nsHankakuToZenkaku::nsHankakuToZenkaku()
+{
+  NS_INIT_REFCNT();
+  PR_AtomicIncrement(&g_InstanceCount);
+}
+nsHankakuToZenkaku::~nsHankakuToZenkaku()
+{
+  PR_AtomicDecrement(&g_InstanceCount);
+}
+
+NS_IMETHODIMP nsHankakuToZenkaku::Change( nsString& aText, nsString& aResult)
+{
+   aResult = aText;
+   const PRUnichar* u = aResult.GetUnicode();
+   PRUnichar* ou = (PRUnichar*) u;
+   PRInt32 l = aResult.Length();
+   PRInt32 ol;
+   
+   HankakuToZenkaku ( u, l, ou, l, &ol);
+   aResult.SetLength(ol);
+
+   return NS_OK;
+}
+
+class nsHankakuToZenkakuFactory : public nsIFactory {
+   NS_DECL_ISUPPORTS
+
+public:
+   nsHankakuToZenkakuFactory() {
+     NS_INIT_REFCNT();
+     PR_AtomicIncrement(&g_InstanceCount);
+   }
+   virtual ~nsHankakuToZenkakuFactory() {
+     PR_AtomicDecrement(&g_InstanceCount);
+   }
+
+   NS_IMETHOD CreateInstance(nsISupports* aDelegate, const nsIID& aIID, void** aResult);
+   NS_IMETHOD LockFactory(PRBool aLock);
+ 
+};
+
+NS_DEFINE_IID( kIFactoryIID, NS_IFACTORY_IID);
+NS_IMPL_ISUPPORTS( nsHankakuToZenkakuFactory , kIFactoryIID);
+
+NS_IMETHODIMP nsHankakuToZenkakuFactory::CreateInstance(
+    nsISupports* aDelegate, const nsIID &aIID, void** aResult)
+{
+  if(NULL == aResult) 
+        return NS_ERROR_NULL_POINTER;
+  if(NULL != aDelegate) 
+        return NS_ERROR_NO_AGGREGATION;
+
+  *aResult = NULL;
+  nsISupports *inst = new nsHankakuToZenkaku();
+  if(NULL == inst) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  nsresult res =inst->QueryInterface(aIID, aResult);
+  if(NS_FAILED(res)) {
+     delete inst;
+  }
+  
+  return res;
+}
+NS_IMETHODIMP nsHankakuToZenkakuFactory::LockFactory(PRBool aLock)
+{
+  if(aLock)
+     PR_AtomicIncrement( &g_LockCount );
+  else
+     PR_AtomicDecrement( &g_LockCount );
+  return NS_OK;
+}
+
+nsIFactory* NEW_HANKAKUTOZENKAKUFACTORY()
+{
+  return new nsHankakuToZenkakuFactory();
+}
+

intl/unicharutil/src/nsTextTransformFactory.h

@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (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/NPL/
+ *
+ * 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 Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#ifndef nsTextTransformFactory_h__
+#define nsTextTransformFactory_h__
+
+
+#include "nsIFactory.h"
+
+nsIFactory* NEW_HANKAKU_TO_ZENKAKU_FACTORY();
+nsIFactory* NEW_TO_LOWERCASE_FACTORY();
+nsIFactory* NEW_TO_UPPERCASE_FACTORY();
+
+#endif /* nsTextTransformFactory_h__ */