code: function processQuote(sql, startIdx) {
      const start = sql[startIdx];
      for(let i = startIdx + 1; i < sql.length; i++) {
          if(sql[i] === "\\") {
              i++;
              continue;
          }
  
          if(sql[i] === start) {
              return i;
          }
      }
  
      return sql.length;
  }
docs: process quote
  @param {String} sql the sql string
  @param {Number} startIdx quote start index
  @returns {Number} the length inner quotes