static L<GazelleTree> gazelle_getChildren_withContinuations(GazelleTree tree, O... _) {

  L<GazelleTree> l = gazelle_getChildren(tree, _);

  bool debug = boolPar debug(_) || boolPar debugContinuations(_);

  new Matches m;

  bool changes = false;

  for i over l: {

    GazelleTree t = l.get(i);

    continue unless eq(t.lineType, 'instruction)

      && match("continue with line * of rule * without variables", t.line, m);

    if (debug) print("Processing continuation: " + sfu(m));

    S ruleID = $2;

    RuleEngine2.Rule rule = t.ctx.engine.getRule(ruleID);

    if (rule == null) {

      print("Follow-up rule not found: " + ruleID);

      continue with l.remove(i--);

    }

    set changes;

    t.mr.rule = rule;

    t.mr.iCond = parseInt($1)-1;

    t.mr.map = ciMap();

    // TODO: remainingConditions?

    if (!t.mr.moreConditions()) {

      t.line = rule.out;

      t.lineType = rule.outType();

    }

    gazelle_addPredictionToTreeNode(t);

  }

  if (changes) gazelle_sortChildren(l);

  ret l;

}