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| 1 /* | 1 /* |
| 2 * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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| 92 | 92 |
| 93 static std::unique_ptr<TextCodec> newStreamingTextDecoderWindowsLatin1( | 93 static std::unique_ptr<TextCodec> newStreamingTextDecoderWindowsLatin1( |
| 94 const TextEncoding&, | 94 const TextEncoding&, |
| 95 const void*) { | 95 const void*) { |
| 96 return wrapUnique(new TextCodecLatin1); | 96 return wrapUnique(new TextCodecLatin1); |
| 97 } | 97 } |
| 98 | 98 |
| 99 void TextCodecLatin1::registerCodecs(TextCodecRegistrar registrar) { | 99 void TextCodecLatin1::registerCodecs(TextCodecRegistrar registrar) { |
| 100 registrar("windows-1252", newStreamingTextDecoderWindowsLatin1, 0); | 100 registrar("windows-1252", newStreamingTextDecoderWindowsLatin1, 0); |
| 101 | 101 |
| 102 // ASCII and Latin-1 both decode as Windows Latin-1 although they retain uniqu
e identities. | 102 // ASCII and Latin-1 both decode as Windows Latin-1 although they retain |
| 103 // unique identities. |
| 103 registrar("ISO-8859-1", newStreamingTextDecoderWindowsLatin1, 0); | 104 registrar("ISO-8859-1", newStreamingTextDecoderWindowsLatin1, 0); |
| 104 registrar("US-ASCII", newStreamingTextDecoderWindowsLatin1, 0); | 105 registrar("US-ASCII", newStreamingTextDecoderWindowsLatin1, 0); |
| 105 } | 106 } |
| 106 | 107 |
| 107 String TextCodecLatin1::decode(const char* bytes, | 108 String TextCodecLatin1::decode(const char* bytes, |
| 108 size_t length, | 109 size_t length, |
| 109 FlushBehavior, | 110 FlushBehavior, |
| 110 bool, | 111 bool, |
| 111 bool&) { | 112 bool&) { |
| 112 LChar* characters; | 113 LChar* characters; |
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| 238 } | 239 } |
| 239 | 240 |
| 240 template <typename CharType> | 241 template <typename CharType> |
| 241 CString TextCodecLatin1::encodeCommon(const CharType* characters, | 242 CString TextCodecLatin1::encodeCommon(const CharType* characters, |
| 242 size_t length, | 243 size_t length, |
| 243 UnencodableHandling handling) { | 244 UnencodableHandling handling) { |
| 244 { | 245 { |
| 245 char* bytes; | 246 char* bytes; |
| 246 CString string = CString::newUninitialized(length, bytes); | 247 CString string = CString::newUninitialized(length, bytes); |
| 247 | 248 |
| 248 // Convert the string a fast way and simultaneously do an efficient check to
see if it's all ASCII. | 249 // Convert the string a fast way and simultaneously do an efficient check to |
| 250 // see if it's all ASCII. |
| 249 UChar ored = 0; | 251 UChar ored = 0; |
| 250 for (size_t i = 0; i < length; ++i) { | 252 for (size_t i = 0; i < length; ++i) { |
| 251 UChar c = characters[i]; | 253 UChar c = characters[i]; |
| 252 bytes[i] = static_cast<char>(c); | 254 bytes[i] = static_cast<char>(c); |
| 253 ored |= c; | 255 ored |= c; |
| 254 } | 256 } |
| 255 | 257 |
| 256 if (!(ored & 0xFF80)) | 258 if (!(ored & 0xFF80)) |
| 257 return string; | 259 return string; |
| 258 } | 260 } |
| 259 | 261 |
| 260 // If it wasn't all ASCII, call the function that handles more-complex cases. | 262 // If it wasn't all ASCII, call the function that handles more-complex cases. |
| 261 return encodeComplexWindowsLatin1(characters, length, handling); | 263 return encodeComplexWindowsLatin1(characters, length, handling); |
| 262 } | 264 } |
| 263 | 265 |
| 264 CString TextCodecLatin1::encode(const UChar* characters, | 266 CString TextCodecLatin1::encode(const UChar* characters, |
| 265 size_t length, | 267 size_t length, |
| 266 UnencodableHandling handling) { | 268 UnencodableHandling handling) { |
| 267 return encodeCommon(characters, length, handling); | 269 return encodeCommon(characters, length, handling); |
| 268 } | 270 } |
| 269 | 271 |
| 270 CString TextCodecLatin1::encode(const LChar* characters, | 272 CString TextCodecLatin1::encode(const LChar* characters, |
| 271 size_t length, | 273 size_t length, |
| 272 UnencodableHandling handling) { | 274 UnencodableHandling handling) { |
| 273 return encodeCommon(characters, length, handling); | 275 return encodeCommon(characters, length, handling); |
| 274 } | 276 } |
| 275 | 277 |
| 276 } // namespace WTF | 278 } // namespace WTF |
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