chromium/third_party/blink/renderer/platform/text/character.cc

/*
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#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/platform/text/character.h"

#include <unicode/uchar.h>
#include <unicode/ucptrie.h>
#include <unicode/uobject.h>
#include <unicode/uscript.h>

#include <algorithm>

#include "base/synchronization/lock.h"
#include "third_party/blink/renderer/platform/text/character_property_data.h"
#include "third_party/blink/renderer/platform/text/icu_error.h"
#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
#include "third_party/blink/renderer/platform/wtf/text/unicode.h"

namespace blink {

namespace {

UCPTrie* CreateTrie() { … }

unsigned GetProperty(UChar32 c, CharacterProperty property) { … }

base::Lock& GetFreezePatternLock() { … }

}  // namespace

void Character::ApplyPatternAndFreezeIfEmpty(icu::UnicodeSet* unicodeSet,
                                             const char* pattern) { … }

bool Character::IsUprightInMixedVertical(UChar32 character) { … }

bool Character::IsCJKIdeographOrSymbolSlow(UChar32 c) { … }

bool Character::IsPotentialCustomElementNameChar(UChar32 character) { … }

bool Character::IsBidiControl(UChar32 character) { … }

bool Character::IsHangulSlow(UChar32 character) { … }

HanKerningCharType Character::GetHanKerningCharType(UChar32 character) { … }

bool Character::MaybeHanKerningOpenSlow(UChar32 ch) { … }

bool Character::MaybeHanKerningCloseSlow(UChar32 ch) { … }

unsigned Character::ExpansionOpportunityCount(
    base::span<const LChar> characters,
    TextDirection direction,
    bool& is_after_expansion) { … }

unsigned Character::ExpansionOpportunityCount(
    base::span<const UChar> characters,
    TextDirection direction,
    bool& is_after_expansion) { … }

bool Character::CanTextDecorationSkipInk(UChar32 codepoint) { … }

bool Character::CanReceiveTextEmphasis(UChar32 c) { … }

bool Character::IsEmojiTagSequence(UChar32 c) { … }

bool Character::IsExtendedPictographic(UChar32 c) { … }

bool Character::IsEmojiComponent(UChar32 c) { … }

bool Character::MaybeEmojiPresentation(UChar32 c) { … }

bool Character::IsCommonOrInheritedScript(UChar32 character) { … }

bool Character::IsPrivateUse(UChar32 character) { … }

bool Character::IsNonCharacter(UChar32 character) { … }

bool Character::HasDefiniteScript(UChar32 character) { … }

// https://w3c.github.io/mathml-core/#stretchy-operator-axis
static const UChar stretchy_operator_with_inline_axis[]{ … };

bool Character::IsVerticalMathCharacter(UChar32 text_content) { … }

}  // namespace blink