message: add no-alignment as 0 to the matchmatrix
diff: @@ -75,7 +75,7 @@ function alignPairwise(query, ref){
  // 2) if X is a base and Y is '-', rPos advances the same and the shift increases
  // -> diagonal step in the matrix from (ri,si-1) to (ri+1,si)
  const gapExtend = -1, misMatch = -2, match=1;
  - const END_OF_SEQUENCE = -30;
  + const END_OF_SEQUENCE = -1;
  let si, ri, shift, tmpMatch, cmp, qPos;
  for (ri=0; ri<ref.length; ri++){
  for (si=2*bandWidth; si>=0; si--){
  @@ -85,6 +85,7 @@ function alignPairwise(query, ref){
  if (qPos>=0 && qPos<query.length){
  tmpMatch = ref[ri]===query[qPos] ? match : misMatch;
  cmp = [
  + 0, // unaligned
  matchMatrix[si][ri] + tmpMatch, // match -- shift stays the same
  si < 2 * bandWidth
  ? matchMatrix[si + 1][ri + 1] + gapExtend
  