src/sass/parse.js
function _checkUnicodeWildcard(i) {
  const start = i;

  if (i >= tokensLength) return 0;

  while (i < tokensLength) {
    if (tokens[i].type === TokenType.QuestionMark) i += 1;
    else break;
  }

  return i - start;
}
function _checkUnicodeWildcard(i) {
  const start = i;

  if (i >= tokensLength) return 0;

  while (i < tokensLength) {
    if (tokens[i].type === TokenType.QuestionMark) i += 1;
    else break;
  }

  return i - start;
}
function _checkUnicodeWildcard ( i ) { const start = i ; if ( i >= tokensLength ) return 0 ; while ( i < tokensLength ) { if ( tokens [ i ] . type === TokenType . QuestionMark ) i += 1 ; else break ; } return i - start ; }
Check for unicode wildcard characters `?`
@param {number} i Token's index
@return {number} Wildcard length
Check for unicode wildcard characters ?