src/lib/lang/utils.ts


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const TONE_LETTER_REGEX = new RegExp(
  /[\u{02E5}-\u{02EE}\u{A700}-\u{A71F}\u{A789}-\u{A78A}]/u,
);
const TONE_NUMBERS_REGEX = new RegExp(/\w(\d{2,})\s/);

export function isTonal(text: string): boolean {
  return !!TONE_LETTER_REGEX.exec(text) || !!TONE_NUMBERS_REGEX.exec(text);
}

export function isLongVowel(text: string): boolean {
  return text.includes("ː");
}

// In this order!
export const thaiTones = {
  "˧": "M",
  "˨˩": "L",
  "˦˥": "H",
  "˥˩": "F",
  "˩˩˦": "R",
};

export const mandarinTones = {
  "˥˥": 1,
  "˧˥": 2,
  "˨˩˦": 3,
  "˥˩": 4,
};