'use strict';

Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });

const getLastChar = (str) => (str = str.replace(/'|"|\([^)]*\)/g, ""))[str.length - 1];

const ppMap = [
  ["(은)는", ["은", "는"]],
  ["(이)가", ["이", "가"]],
  ["(을)를", ["을", "를"]],
  ["(과)와", ["과", "와"]],
  ["(으)로", ["으로", "로"]],
  ["(이)여", ["이어", "여"]],
  ["(이)", ["이", ""]],
  ["(아)야", ["아", "야"]]
];
const foreignCharsRecord = {
  0: 1,
  1: 8,
  3: 1,
  6: 1,
  7: 8,
  8: 8,
  b: 1,
  c: 1,
  g: 1,
  k: 1,
  l: 8,
  m: 1,
  n: 1,
  p: 1
};
const hasNoCoda = (char, ignore_ㄹ) => {
  let coda = char >= "가" && char <= "힣" ? (char.charCodeAt(0) - 16) % 28 : foreignCharsRecord[char];
  return !coda || ignore_ㄹ && coda == 8;
};
const resolve = (tokenString, testString) => {
  let foundPair = ppMap.find((pair) => tokenString.startsWith(pair[0]));
  return foundPair ? [foundPair[0], foundPair[1][+hasNoCoda(getLastChar(testString), foundPair[0] == "(으)로")]] : null;
};

const ko = (template, ...words) => words.reduce((acc, word, index) => {
  let withoutPronunciation = "" + word === word;
  let succeeding = template[index + 1];
  let tokenInfo = resolve(succeeding, withoutPronunciation ? word : word[1]);
  return acc + (withoutPronunciation ? word : word[0]) + (tokenInfo ? tokenInfo[1] + succeeding.slice(tokenInfo[0].length) : succeeding);
}, template[0]);

exports.ko = ko;
exports.resolve = resolve;
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