pjs/intl/uconv/util/nsUnicodeDecodeHelper.h

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#ifndef nsUnicodeDecodeHelper_h__
#define nsUnicodeDecodeHelper_h__
#include "nsIUnicodeDecoder.h"
#include "uconvutil.h"
//----------------------------------------------------------------------
// Class nsUnicodeDecodeHelper [declaration]
/**
*
* @created 18/Mar/1998
* @author Catalin Rotaru [CATA]
*/
class nsUnicodeDecodeHelper
{
public:
/**
* Converts data using a lookup table and optional shift table
*/
static nsresult ConvertByTable(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength,
uScanClassID aScanClass,
uShiftInTable * aShiftInTable,
uMappingTable * aMappingTable,
bool aErrorSignal = false);
/**
* Converts data using a set of lookup tables.
*/
static nsresult ConvertByMultiTable(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength, PRInt32 aTableCount,
const uRange * aRangeArray, uScanClassID * aScanClassArray,
uMappingTable ** aMappingTable, bool aErrorSignal = false);
/**
* Converts data using a fast lookup table.
*/
static nsresult ConvertByFastTable(const char * aSrc, PRInt32 * aSrcLength,
PRUnichar * aDest, PRInt32 * aDestLength, const PRUnichar * aFastTable,
PRInt32 aTableSize, bool aErrorSignal);
/**
* Create a cache-like fast lookup table from a normal one.
*/
static nsresult CreateFastTable(uMappingTable * aMappingTable,
PRUnichar * aFastTable, PRInt32 aTableSize);
};
#endif // nsUnicodeDecodeHelper_h__