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74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GreekCasing_h_
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#define GreekCasing_h_
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#include <stdint.h>
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#include "mozilla/Attributes.h"
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namespace mozilla {
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class GreekCasing {
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// When doing an Uppercase transform in Greek, we need to keep track of the
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// current state while iterating through the string, to recognize and process
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// diphthongs correctly. For clarity, we define a state for each vowel and
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// each vowel with accent, although a few of these do not actually need any
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// special treatment and could be folded into kStart.
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private:
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enum GreekStates {
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kStart,
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kAlpha,
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kEpsilon,
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kEta,
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kIota,
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kOmicron,
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kUpsilon,
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kOmega,
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kAlphaAcc,
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kEpsilonAcc,
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kEtaAcc,
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kIotaAcc,
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kOmicronAcc,
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kUpsilonAcc,
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kOmegaAcc,
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kOmicronUpsilon,
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kDiaeresis
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};
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public:
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class State {
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public:
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State()
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: mState(kStart)
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{
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}
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MOZ_IMPLICIT State(const GreekStates& aState)
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: mState(aState)
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{
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}
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void Reset()
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{
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mState = kStart;
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}
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operator GreekStates() const
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{
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return mState;
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}
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private:
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GreekStates mState;
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};
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static uint32_t UpperCase(uint32_t aCh, State& aState);
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};
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} // namespace mozilla
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#endif
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