Function truncateWidthWithAnsi

src/utils.js:155–184

(str, desiredLength)

}

function truncateWidthWithAnsi(str, desiredLength) {
  let code = codeRegex(true);
  let split = str.split(codeRegex());
  let splitIndex = 0;
  let retLen = 0;
  let ret = '';
  let myArray;
  let state = {};

  while (retLen < desiredLength) {
    myArray = code.exec(str);
    let toAdd = split[splitIndex];
    splitIndex++;
    if (retLen + strlen(toAdd) > desiredLength) {
      toAdd = truncateWidth(toAdd, desiredLength - retLen);
    }
    ret += toAdd;
    retLen += strlen(toAdd);

    if (retLen < desiredLength) {
      if (!myArray) {
        break;
      } // full-width chars may cause a whitespace which cannot be filled
      ret += myArray[0];
      updateState(state, myArray);
    }
  }

  return unwindState(state, ret);
}

function truncate(str, desiredLength, truncateChar) {
  truncateChar = truncateChar || '…';