IrishCasing.h (2000B)
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 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 #ifndef IrishCasing_h_ 7 #define IrishCasing_h_ 8 9 #include <stdint.h> 10 #include "mozilla/Attributes.h" 11 12 namespace mozilla { 13 14 class IrishCasing { 15 private: 16 enum IrishStates { 17 kState_Start, 18 kState_InWord, 19 kState_b, 20 kState_bh, 21 kState_d, 22 kState_g, 23 kState_h, 24 kState_m, 25 kState_n, 26 kState_nt_, 27 kState_t, 28 kState_ts, 29 kNumStates 30 }; 31 32 enum IrishClasses { 33 kClass_b, 34 kClass_B, 35 kClass_cC, 36 kClass_d, 37 kClass_DG, 38 kClass_fF, 39 kClass_g, 40 kClass_h, 41 kClass_lLNrR, 42 kClass_m, 43 kClass_n, 44 kClass_pP, 45 kClass_sS, 46 kClass_t, 47 kClass_T, 48 kClass_vowel, 49 kClass_Vowel, 50 kClass_hyph, 51 kClass_letter, 52 kClass_other, 53 kNumClasses 54 }; 55 56 public: 57 class State { 58 friend class IrishCasing; 59 60 public: 61 State() : mState(kState_Start) {} 62 63 MOZ_IMPLICIT State(const IrishStates& aState) : mState(aState) {} 64 65 void Reset() { mState = kState_Start; } 66 67 operator IrishStates() const { return mState; } 68 69 private: 70 explicit State(uint8_t aState) : mState(IrishStates(aState)) {} 71 72 uint8_t GetClass(uint32_t aCh); 73 74 IrishStates mState; 75 }; 76 77 enum { 78 kMarkPositionFlag = 0x80, 79 kActionMask = 0x30, 80 kActionShift = 4, 81 kNextStateMask = 0x0f 82 }; 83 84 static const uint8_t sUppercaseStateTable[kNumClasses][kNumStates]; 85 static const uint8_t sLcClasses[26]; 86 static const uint8_t sUcClasses[26]; 87 88 static uint32_t UpperCase(uint32_t aCh, State& aState, bool& aMarkPos, 89 uint8_t& aAction); 90 91 static bool IsUpperVowel(uint32_t aCh) { 92 return GetClass(aCh) == kClass_Vowel; 93 } 94 95 private: 96 static uint8_t GetClass(uint32_t aCh); 97 }; 98 99 } // namespace mozilla 100 101 #endif