chromium/third_party/blink/renderer/core/editing/state_machines/backward_grapheme_boundary_state_machine.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "third_party/blink/renderer/core/editing/state_machines/backward_grapheme_boundary_state_machine.h"

#include <ostream>

#include "third_party/blink/renderer/core/editing/state_machines/state_machine_util.h"
#include "third_party/blink/renderer/core/editing/state_machines/text_segmentation_machine_state.h"
#include "third_party/blink/renderer/platform/text/character.h"
#include "third_party/blink/renderer/platform/wtf/text/character_names.h"
#include "third_party/blink/renderer/platform/wtf/text/unicode.h"

namespace blink {

namespace {
const UChar32 kInvalidCodePoint = …;
}  // namespace

#define FOR_EACH_BACKWARD_GRAPHEME_BOUNDARY_STATE(V) …

enum class BackwardGraphemeBoundaryStateMachine::InternalState { … };

std::ostream& operator<<(
    std::ostream& os,
    BackwardGraphemeBoundaryStateMachine::InternalState state) { … }

BackwardGraphemeBoundaryStateMachine::BackwardGraphemeBoundaryStateMachine()
    : … { … }

TextSegmentationMachineState
BackwardGraphemeBoundaryStateMachine::FeedPrecedingCodeUnit(UChar code_unit) { … }

TextSegmentationMachineState
BackwardGraphemeBoundaryStateMachine::TellEndOfPrecedingText() { … }

TextSegmentationMachineState
BackwardGraphemeBoundaryStateMachine::FeedFollowingCodeUnit(UChar code_unit) { … }

int BackwardGraphemeBoundaryStateMachine::FinalizeAndGetBoundaryOffset() { … }

TextSegmentationMachineState
BackwardGraphemeBoundaryStateMachine::MoveToNextState(
    InternalState next_state) { … }

TextSegmentationMachineState
BackwardGraphemeBoundaryStateMachine::StaySameState() { … }

TextSegmentationMachineState BackwardGraphemeBoundaryStateMachine::Finish() { … }

void BackwardGraphemeBoundaryStateMachine::Reset() { … }

}  // namespace blink