chromium/src/third_party/blink/renderer/platform/text/locale_to_script_mapping.h

/*
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#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_TEXT_LOCALE_TO_SCRIPT_MAPPING_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_TEXT_LOCALE_TO_SCRIPT_MAPPING_H_

#include "base/check.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/text/unicode.h"

#include <unicode/uscript.h>

namespace blink {

PLATFORM_EXPORT UScriptCode LocaleToScriptCodeForFontSelection(const String&);
PLATFORM_EXPORT UScriptCode ScriptNameToCode(const String&);

PLATFORM_EXPORT UScriptCode ScriptCodeForHanFromSubtags(const String&,
                                                        char delimiter = '-');

inline bool IsUnambiguousHanScript(UScriptCode script) {
  // localeToScriptCodeForFontSelection() does not return these values.
  DCHECK(script != USCRIPT_HIRAGANA && script != USCRIPT_KATAKANA);
  return script == USCRIPT_KATAKANA_OR_HIRAGANA ||
         script == USCRIPT_SIMPLIFIED_HAN ||
         script == USCRIPT_TRADITIONAL_HAN || script == USCRIPT_HANGUL;
}
}

#endif