1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/uconv/public/nsUCSupport.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,461 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsUCvJaSupport_h___
1.10 +#define nsUCvJaSupport_h___
1.11 +
1.12 +#include "nsCOMPtr.h"
1.13 +#include "nsIUnicodeEncoder.h"
1.14 +#include "nsIUnicodeDecoder.h"
1.15 +#include "uconvutil.h"
1.16 +#include "mozilla/Mutex.h"
1.17 +
1.18 +#define ONE_BYTE_TABLE_SIZE 256
1.19 +
1.20 +inline bool WillOverrun(char16_t* aDest, char16_t* aDestEnd, uint32_t aLength)
1.21 +{
1.22 + NS_ASSERTION(aDest <= aDestEnd, "Pointer overrun even before check");
1.23 + return (uint32_t(aDestEnd - aDest) < aLength);
1.24 +}
1.25 +#define CHECK_OVERRUN(dest, destEnd, length) (WillOverrun(dest, destEnd, length))
1.26 +
1.27 +#ifdef DEBUG
1.28 +// {7AFC9F0A-CFE1-44ea-A755-E3B86AB1226E}
1.29 +#define NS_IBASICDECODER_IID \
1.30 +{ 0x7afc9f0a, 0xcfe1, 0x44ea, { 0xa7, 0x55, 0xe3, 0xb8, 0x6a, 0xb1, 0x22, 0x6e } }
1.31 +
1.32 +// {65968A7B-6467-4c4a-B50A-3E0C97A32F07}
1.33 +#define NS_IBASICENCODER_IID \
1.34 +{ 0x65968a7b, 0x6467, 0x4c4a, { 0xb5, 0xa, 0x3e, 0xc, 0x97, 0xa3, 0x2f, 0x7 } }
1.35 +
1.36 +class nsIBasicDecoder : public nsISupports {
1.37 +public:
1.38 + NS_DECLARE_STATIC_IID_ACCESSOR(NS_IBASICDECODER_IID)
1.39 +};
1.40 +
1.41 +NS_DEFINE_STATIC_IID_ACCESSOR(nsIBasicDecoder, NS_IBASICDECODER_IID)
1.42 +
1.43 +class nsIBasicEncoder : public nsISupports {
1.44 +public:
1.45 + NS_DECLARE_STATIC_IID_ACCESSOR(NS_IBASICENCODER_IID)
1.46 +};
1.47 +
1.48 +NS_DEFINE_STATIC_IID_ACCESSOR(nsIBasicEncoder, NS_IBASICENCODER_IID)
1.49 +
1.50 +#endif
1.51 +
1.52 +//----------------------------------------------------------------------
1.53 +// Class nsBasicDecoderSupport [declaration]
1.54 +
1.55 +/**
1.56 + * Support class for the Unicode decoders.
1.57 + *
1.58 + * The class source files for this class are in /ucvlatin/nsUCvJaSupport.
1.59 + * However, because these objects requires non-xpcom subclassing, local copies
1.60 + * will be made into the other directories using them. Just don't forget to
1.61 + * keep in sync with the master copy!
1.62 + *
1.63 + * This class implements:
1.64 + * - nsISupports
1.65 + * - nsIUnicodeDecoder
1.66 + *
1.67 + * @created 19/Apr/1999
1.68 + * @author Catalin Rotaru [CATA]
1.69 + */
1.70 +class nsBasicDecoderSupport : public nsIUnicodeDecoder
1.71 +#ifdef DEBUG
1.72 + ,public nsIBasicDecoder
1.73 +#endif
1.74 +{
1.75 + NS_DECL_THREADSAFE_ISUPPORTS
1.76 +
1.77 +public:
1.78 +
1.79 + /**
1.80 + * Class constructor.
1.81 + */
1.82 + nsBasicDecoderSupport();
1.83 +
1.84 + /**
1.85 + * Class destructor.
1.86 + */
1.87 + virtual ~nsBasicDecoderSupport();
1.88 +
1.89 + //--------------------------------------------------------------------
1.90 + // Interface nsIUnicodeDecoder [declaration]
1.91 +
1.92 + virtual void SetInputErrorBehavior(int32_t aBehavior);
1.93 + virtual char16_t GetCharacterForUnMapped();
1.94 +
1.95 +protected:
1.96 + int32_t mErrBehavior;
1.97 +};
1.98 +
1.99 +//----------------------------------------------------------------------
1.100 +// Class nsBufferDecoderSupport [declaration]
1.101 +
1.102 +/**
1.103 + * Support class for the Unicode decoders.
1.104 + *
1.105 + * This class implements:
1.106 + * - the buffer management
1.107 + *
1.108 + * @created 15/Mar/1999
1.109 + * @author Catalin Rotaru [CATA]
1.110 + */
1.111 +class nsBufferDecoderSupport : public nsBasicDecoderSupport
1.112 +{
1.113 +protected:
1.114 +
1.115 + /**
1.116 + * Internal buffer for partial conversions.
1.117 + */
1.118 + char * mBuffer;
1.119 + int32_t mBufferCapacity;
1.120 + int32_t mBufferLength;
1.121 +
1.122 + uint32_t mMaxLengthFactor;
1.123 +
1.124 + /**
1.125 + * Convert method but *without* the buffer management stuff.
1.126 + */
1.127 + NS_IMETHOD ConvertNoBuff(const char * aSrc, int32_t * aSrcLength,
1.128 + char16_t * aDest, int32_t * aDestLength) = 0;
1.129 +
1.130 + void FillBuffer(const char ** aSrc, int32_t aSrcLength);
1.131 +
1.132 +public:
1.133 +
1.134 + /**
1.135 + * Class constructor.
1.136 + */
1.137 + nsBufferDecoderSupport(uint32_t aMaxLengthFactor);
1.138 +
1.139 + /**
1.140 + * Class destructor.
1.141 + */
1.142 + virtual ~nsBufferDecoderSupport();
1.143 +
1.144 + //--------------------------------------------------------------------
1.145 + // Interface nsIUnicodeDecoder [declaration]
1.146 +
1.147 + NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
1.148 + char16_t * aDest, int32_t * aDestLength);
1.149 + NS_IMETHOD Reset();
1.150 + NS_IMETHOD GetMaxLength(const char *aSrc,
1.151 + int32_t aSrcLength,
1.152 + int32_t* aDestLength);
1.153 +};
1.154 +
1.155 +//----------------------------------------------------------------------
1.156 +// Class nsTableDecoderSupport [declaration]
1.157 +
1.158 +/**
1.159 + * Support class for a single-table-driven Unicode decoder.
1.160 + *
1.161 + * @created 15/Mar/1999
1.162 + * @author Catalin Rotaru [CATA]
1.163 + */
1.164 +class nsTableDecoderSupport : public nsBufferDecoderSupport
1.165 +{
1.166 +public:
1.167 +
1.168 + /**
1.169 + * Class constructor.
1.170 + */
1.171 + nsTableDecoderSupport(uScanClassID aScanClass, uShiftInTable * aShiftInTable,
1.172 + uMappingTable * aMappingTable, uint32_t aMaxLengthFactor);
1.173 +
1.174 + /**
1.175 + * Class destructor.
1.176 + */
1.177 + virtual ~nsTableDecoderSupport();
1.178 +
1.179 +protected:
1.180 +
1.181 + uScanClassID mScanClass;
1.182 + uShiftInTable * mShiftInTable;
1.183 + uMappingTable * mMappingTable;
1.184 +
1.185 + //--------------------------------------------------------------------
1.186 + // Subclassing of nsBufferDecoderSupport class [declaration]
1.187 +
1.188 + NS_IMETHOD ConvertNoBuff(const char * aSrc, int32_t * aSrcLength,
1.189 + char16_t * aDest, int32_t * aDestLength);
1.190 +};
1.191 +
1.192 +//----------------------------------------------------------------------
1.193 +// Class nsMultiTableDecoderSupport [declaration]
1.194 +
1.195 +/**
1.196 + * Support class for a multi-table-driven Unicode decoder.
1.197 + *
1.198 + * @created 24/Mar/1999
1.199 + * @author Catalin Rotaru [CATA]
1.200 + */
1.201 +class nsMultiTableDecoderSupport : public nsBufferDecoderSupport
1.202 +{
1.203 +public:
1.204 +
1.205 + /**
1.206 + * Class constructor.
1.207 + */
1.208 + nsMultiTableDecoderSupport(int32_t aTableCount, const uRange * aRangeArray,
1.209 + uScanClassID * aScanClassArray,
1.210 + uMappingTable ** aMappingTable,
1.211 + uint32_t aMaxLengthFactor);
1.212 +
1.213 + /**
1.214 + * Class destructor.
1.215 + */
1.216 + virtual ~nsMultiTableDecoderSupport();
1.217 +
1.218 +protected:
1.219 +
1.220 + int32_t mTableCount;
1.221 + const uRange * mRangeArray;
1.222 + uScanClassID * mScanClassArray;
1.223 + uMappingTable ** mMappingTable;
1.224 +
1.225 + //--------------------------------------------------------------------
1.226 + // Subclassing of nsBufferDecoderSupport class [declaration]
1.227 +
1.228 + NS_IMETHOD ConvertNoBuff(const char * aSrc, int32_t * aSrcLength,
1.229 + char16_t * aDest, int32_t * aDestLength);
1.230 +};
1.231 +
1.232 +//----------------------------------------------------------------------
1.233 +// Class nsBufferDecoderSupport [declaration]
1.234 +
1.235 +/**
1.236 + * Support class for a single-byte Unicode decoder.
1.237 + *
1.238 + * @created 19/Apr/1999
1.239 + * @author Catalin Rotaru [CATA]
1.240 + */
1.241 +class nsOneByteDecoderSupport : public nsBasicDecoderSupport
1.242 +{
1.243 +public:
1.244 +
1.245 + /**
1.246 + * Class constructor.
1.247 + */
1.248 + nsOneByteDecoderSupport(uMappingTable * aMappingTable);
1.249 +
1.250 + /**
1.251 + * Class destructor.
1.252 + */
1.253 + virtual ~nsOneByteDecoderSupport();
1.254 +
1.255 +protected:
1.256 +
1.257 + uMappingTable * mMappingTable;
1.258 + char16_t mFastTable[ONE_BYTE_TABLE_SIZE];
1.259 + bool mFastTableCreated;
1.260 + mozilla::Mutex mFastTableMutex;
1.261 +
1.262 + //--------------------------------------------------------------------
1.263 + // Subclassing of nsBasicDecoderSupport class [declaration]
1.264 +
1.265 + NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
1.266 + char16_t * aDest, int32_t * aDestLength);
1.267 + NS_IMETHOD GetMaxLength(const char * aSrc, int32_t aSrcLength,
1.268 + int32_t * aDestLength);
1.269 + NS_IMETHOD Reset();
1.270 +};
1.271 +
1.272 +//----------------------------------------------------------------------
1.273 +// Class nsBasicEncoder [declaration]
1.274 +
1.275 +class nsBasicEncoder : public nsIUnicodeEncoder
1.276 +#ifdef DEBUG
1.277 + ,public nsIBasicEncoder
1.278 +#endif
1.279 +{
1.280 + NS_DECL_ISUPPORTS
1.281 +
1.282 +public:
1.283 + /**
1.284 + * Class constructor.
1.285 + */
1.286 + nsBasicEncoder();
1.287 +
1.288 + /**
1.289 + * Class destructor.
1.290 + */
1.291 + virtual ~nsBasicEncoder();
1.292 +
1.293 +};
1.294 +//----------------------------------------------------------------------
1.295 +// Class nsEncoderSupport [declaration]
1.296 +
1.297 +/**
1.298 + * Support class for the Unicode encoders.
1.299 + *
1.300 + * This class implements:
1.301 + * - nsISupports
1.302 + * - the buffer management
1.303 + * - error handling procedure(s)
1.304 + *
1.305 + * @created 17/Feb/1999
1.306 + * @author Catalin Rotaru [CATA]
1.307 + */
1.308 +class nsEncoderSupport : public nsBasicEncoder
1.309 +{
1.310 +
1.311 +protected:
1.312 +
1.313 + /**
1.314 + * Internal buffer for partial conversions.
1.315 + */
1.316 + char * mBuffer;
1.317 + int32_t mBufferCapacity;
1.318 + char * mBufferStart;
1.319 + char * mBufferEnd;
1.320 +
1.321 + /**
1.322 + * Error handling stuff
1.323 + */
1.324 + int32_t mErrBehavior;
1.325 + nsCOMPtr<nsIUnicharEncoder> mErrEncoder;
1.326 + char16_t mErrChar;
1.327 + uint32_t mMaxLengthFactor;
1.328 +
1.329 + /**
1.330 + * Convert method but *without* the buffer management stuff and *with*
1.331 + * error handling stuff.
1.332 + */
1.333 + NS_IMETHOD ConvertNoBuff(const char16_t * aSrc, int32_t * aSrcLength,
1.334 + char * aDest, int32_t * aDestLength);
1.335 +
1.336 + /**
1.337 + * Convert method but *without* the buffer management stuff and *without*
1.338 + * error handling stuff.
1.339 + */
1.340 + NS_IMETHOD ConvertNoBuffNoErr(const char16_t * aSrc, int32_t * aSrcLength,
1.341 + char * aDest, int32_t * aDestLength) = 0;
1.342 +
1.343 + /**
1.344 + * Finish method but *without* the buffer management stuff.
1.345 + */
1.346 + NS_IMETHOD FinishNoBuff(char * aDest, int32_t * aDestLength);
1.347 +
1.348 + /**
1.349 + * Copy as much as possible from the internal buffer to the destination.
1.350 + */
1.351 + nsresult FlushBuffer(char ** aDest, const char * aDestEnd);
1.352 +
1.353 +public:
1.354 +
1.355 + /**
1.356 + * Class constructor.
1.357 + */
1.358 + nsEncoderSupport(uint32_t aMaxLengthFactor);
1.359 +
1.360 + /**
1.361 + * Class destructor.
1.362 + */
1.363 + virtual ~nsEncoderSupport();
1.364 +
1.365 + //--------------------------------------------------------------------
1.366 + // Interface nsIUnicodeEncoder [declaration]
1.367 +
1.368 + NS_IMETHOD Convert(const char16_t * aSrc, int32_t * aSrcLength,
1.369 + char * aDest, int32_t * aDestLength);
1.370 + NS_IMETHOD Finish(char * aDest, int32_t * aDestLength);
1.371 + NS_IMETHOD Reset();
1.372 + NS_IMETHOD SetOutputErrorBehavior(int32_t aBehavior,
1.373 + nsIUnicharEncoder * aEncoder, char16_t aChar);
1.374 + NS_IMETHOD GetMaxLength(const char16_t * aSrc,
1.375 + int32_t aSrcLength,
1.376 + int32_t * aDestLength);
1.377 +};
1.378 +
1.379 +//----------------------------------------------------------------------
1.380 +// Class nsTableEncoderSupport [declaration]
1.381 +
1.382 +/**
1.383 + * Support class for a single-table-driven Unicode encoder.
1.384 + *
1.385 + * @created 17/Feb/1999
1.386 + * @author Catalin Rotaru [CATA]
1.387 + */
1.388 +class nsTableEncoderSupport : public nsEncoderSupport
1.389 +{
1.390 +public:
1.391 +
1.392 + /**
1.393 + * Class constructors.
1.394 + */
1.395 + nsTableEncoderSupport(uScanClassID aScanClass,
1.396 + uShiftOutTable * aShiftOutTable,
1.397 + uMappingTable * aMappingTable,
1.398 + uint32_t aMaxLengthFactor);
1.399 +
1.400 + nsTableEncoderSupport(uScanClassID aScanClass,
1.401 + uMappingTable * aMappingTable,
1.402 + uint32_t aMaxLengthFactor);
1.403 +
1.404 + /**
1.405 + * Class destructor.
1.406 + */
1.407 + virtual ~nsTableEncoderSupport();
1.408 +
1.409 +protected:
1.410 +
1.411 + uScanClassID mScanClass;
1.412 + uShiftOutTable * mShiftOutTable;
1.413 + uMappingTable * mMappingTable;
1.414 +
1.415 + //--------------------------------------------------------------------
1.416 + // Subclassing of nsEncoderSupport class [declaration]
1.417 +
1.418 + NS_IMETHOD ConvertNoBuffNoErr(const char16_t * aSrc, int32_t * aSrcLength,
1.419 + char * aDest, int32_t * aDestLength);
1.420 +};
1.421 +
1.422 +//----------------------------------------------------------------------
1.423 +// Class nsMultiTableEncoderSupport [declaration]
1.424 +
1.425 +/**
1.426 + * Support class for a multi-table-driven Unicode encoder.
1.427 + *
1.428 + * @created 11/Mar/1999
1.429 + * @author Catalin Rotaru [CATA]
1.430 + */
1.431 +class nsMultiTableEncoderSupport : public nsEncoderSupport
1.432 +{
1.433 +public:
1.434 +
1.435 + /**
1.436 + * Class constructor.
1.437 + */
1.438 + nsMultiTableEncoderSupport(int32_t aTableCount,
1.439 + uScanClassID * aScanClassArray,
1.440 + uShiftOutTable ** aShiftOutTable,
1.441 + uMappingTable ** aMappingTable,
1.442 + uint32_t aMaxLengthFactor);
1.443 +
1.444 + /**
1.445 + * Class destructor.
1.446 + */
1.447 + virtual ~nsMultiTableEncoderSupport();
1.448 +
1.449 +protected:
1.450 +
1.451 + int32_t mTableCount;
1.452 + uScanClassID * mScanClassArray;
1.453 + uShiftOutTable ** mShiftOutTable;
1.454 + uMappingTable ** mMappingTable;
1.455 +
1.456 + //--------------------------------------------------------------------
1.457 + // Subclassing of nsEncoderSupport class [declaration]
1.458 +
1.459 + NS_IMETHOD ConvertNoBuffNoErr(const char16_t * aSrc, int32_t * aSrcLength,
1.460 + char * aDest, int32_t * aDestLength);
1.461 +};
1.462 +
1.463 +
1.464 +#endif /* nsUCvJaSupport_h___ */
