The Tor Browser / file comparison
comparison: gfx/thebes/gfxScriptItemizer.h
gfx/thebes/gfxScriptItemizer.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:70275c087a1e |
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * This file is based on usc_impl.c from ICU 4.2.0.1, slightly adapted | |
| 8 * for use within Mozilla Gecko, separate from a standard ICU build. | |
| 9 * | |
| 10 * The original ICU license of the code follows: | |
| 11 * | |
| 12 * ICU License - ICU 1.8.1 and later | |
| 13 * | |
| 14 * COPYRIGHT AND PERMISSION NOTICE | |
| 15 * | |
| 16 * Copyright (c) 1995-2009 International Business Machines Corporation and | |
| 17 * others | |
| 18 * | |
| 19 * All rights reserved. | |
| 20 * | |
| 21 * Permission is hereby granted, free of charge, to any person obtaining a | |
| 22 * copy of this software and associated documentation files (the "Software"), | |
| 23 * to deal in the Software without restriction, including without limitation | |
| 24 * the rights to use, copy, modify, merge, publish, distribute, and/or sell | |
| 25 * copies of the Software, and to permit persons to whom the Software is | |
| 26 * furnished to do so, provided that the above copyright notice(s) and this | |
| 27 * permission notice appear in all copies of the Software and that both the | |
| 28 * above copyright notice(s) and this permission notice appear in supporting | |
| 29 * documentation. | |
| 30 * | |
| 31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 32 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 33 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
| 34 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE | |
| 35 * BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, | |
| 36 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
| 37 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
| 38 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
| 39 * SOFTWARE. | |
| 40 * | |
| 41 * Except as contained in this notice, the name of a copyright holder shall | |
| 42 * not be used in advertising or otherwise to promote the sale, use or other | |
| 43 * dealings in this Software without prior written authorization of the | |
| 44 * copyright holder. | |
| 45 * | |
| 46 * All trademarks and registered trademarks mentioned herein are the property | |
| 47 * of their respective owners. | |
| 48 */ | |
| 49 | |
| 50 #ifndef GFX_SCRIPTITEMIZER_H | |
| 51 #define GFX_SCRIPTITEMIZER_H | |
| 52 | |
| 53 #include <stdint.h> | |
| 54 #include "nsUnicodeScriptCodes.h" | |
| 55 | |
| 56 #define PAREN_STACK_DEPTH 32 | |
| 57 | |
| 58 class gfxScriptItemizer | |
| 59 { | |
| 60 public: | |
| 61 gfxScriptItemizer(const char16_t *src, uint32_t length); | |
| 62 | |
| 63 void SetText(const char16_t *src, uint32_t length); | |
| 64 | |
| 65 bool Next(uint32_t& aRunStart, uint32_t& aRunLimit, | |
| 66 int32_t& aRunScript); | |
| 67 | |
| 68 protected: | |
| 69 void reset() { | |
| 70 scriptStart = 0; | |
| 71 scriptLimit = 0; | |
| 72 scriptCode = MOZ_SCRIPT_INVALID; | |
| 73 parenSP = -1; | |
| 74 pushCount = 0; | |
| 75 fixupCount = 0; | |
| 76 } | |
| 77 | |
| 78 void push(uint32_t endPairChar, int32_t scriptCode); | |
| 79 void pop(); | |
| 80 void fixup(int32_t scriptCode); | |
| 81 | |
| 82 struct ParenStackEntry { | |
| 83 uint32_t endPairChar; | |
| 84 int32_t scriptCode; | |
| 85 }; | |
| 86 | |
| 87 const char16_t *textPtr; | |
| 88 uint32_t textLength; | |
| 89 | |
| 90 uint32_t scriptStart; | |
| 91 uint32_t scriptLimit; | |
| 92 int32_t scriptCode; | |
| 93 | |
| 94 struct ParenStackEntry parenStack[PAREN_STACK_DEPTH]; | |
| 95 uint32_t parenSP; | |
| 96 uint32_t pushCount; | |
| 97 uint32_t fixupCount; | |
| 98 }; | |
| 99 | |
| 100 #endif /* GFX_SCRIPTITEMIZER_H */ |
