chromium/third_party/dawn/src/tint/utils/text/unicode.cc

// Copyright 2022 The Dawn & Tint Authors
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#include "src/tint/utils/text/unicode.h"

#include <algorithm>

namespace tint {
namespace {

struct CodePointRange { … };

inline bool operator<(CodePoint code_point, CodePointRange range) { … }
inline bool operator<(CodePointRange range, CodePoint code_point) { … }

// Interval ranges of all code points in the Unicode 14 XID_Start set
// This array needs to be in ascending order.
constexpr CodePointRange kXIDStartRanges[] = …;

// Number of ranges in kXIDStartRanges
constexpr size_t kNumXIDStartRanges = …;

// The additional code point interval ranges for the Unicode 14 XID_Continue
// set. This extends the values in kXIDStartRanges.
// This array needs to be in ascending order.
constexpr CodePointRange kXIDContinueRanges[] = …;

// Number of ranges in kXIDContinueRanges
constexpr size_t kNumXIDContinueRanges = …;

}  // namespace

bool CodePoint::IsXIDStart() const { … }

bool CodePoint::IsXIDContinue() const { … }

namespace utf8 {

std::pair<CodePoint, size_t> Decode(const uint8_t* ptr, size_t len) { … }

std::pair<CodePoint, size_t> Decode(std::string_view utf8_string) { … }

size_t Encode(CodePoint code_point, uint8_t* ptr) { … }

bool IsASCII(std::string_view str) { … }

}  // namespace utf8

namespace utf16 {

std::pair<CodePoint, size_t> Decode(const uint16_t* ptr, size_t len) { … }

std::pair<CodePoint, size_t> Decode(std::string_view utf16_string) { … }

size_t Encode(CodePoint code_point, uint16_t* ptr) { … }

}  // namespace utf16
}  // namespace tint