code: function (seedAry, match) {
    var res = $.replicate(seedAry.length, []);
    seedAry.forEach(function (xps, x) {
      // NB: while we are not writing 1-1 from seedAry to res, we are always
      // making sure not to overwrite what we had in previous iterations
      if (xps.indexOf(match.p[0]) < 0) {
        res[x] = res[x].concat(xps);
        return;
      }
      // always tieCompute match because only strict mode has guaranteed non-ties
      var sorted = $.zip(match.p, match.m).sort(Base.compareZip);
      Base.matchTieCompute(sorted, 0, function (p, pos) {
        res[x+pos-1].push(p);
      });
    });
    return res;
  }
docs: split up the posAry entried cluster found in corresponding within section breakers