code: function findMatchingSpecial() {
              // used to loop through the specials
              var i;
  
              for (i = specialsCounter; i < specials.length; i++) {
                  // short circuit this search when we know there are no matches following
                  if (specials[i] >= deadBranches[queryCounter]) {
                      break;
                  }
  
                  // First, ensure that we're not comparing specials that
                  // come earlier in the string than our current search position.
                  // This can happen when the string position changes elsewhere.
                  if (specials[i] < strCounter) {
                      specialsCounter = i;
                  } else if (query[queryCounter] === str[specials[i]]) {
                      // we have a match! do the required tracking
                      strCounter = specials[i];
  
                      // Upper case match check:
                      // If the query and original string matched, but the original string
                      // and the lower case version did not, that means that the original
                      // was upper case.
                      var upper = originalQuery[queryCounter] === originalStr[strCounter] && originalStr[strCounter] !== str[strCounter];
                      result.push(new SpecialMatch(strCounter, upper));
                      specialsCounter = i;
                      queryCounter++;
                      strCounter++;
                      return true;
                  }
              }
  
              return false;
          }
docs: Compares the current character from the query string against the special characters in str. Returns true if a match was found, false otherwise.