Examples of RuleList

Examples of lupos.rif.model.RuleList

      result.termParams.add((IExpression) expr.accept(this, result));
    return result;
  }


  public IRuleNode visit(RuleList obj, IRuleNode arg) throws RIFException {
    final RuleList result = new RuleList();
    result.setParent(arg);
    result.isOpen = obj.isOpen;
    List<IExpression> exprs = new ArrayList<IExpression>(obj.getItems());
    for (IExpression expr : exprs)
      result.getItems().add((IExpression) expr.accept(this, result));
    return result;
  }

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Examples of lupos.rif.model.RuleList

  @Builtin(Name = "get")
  public static Item get(final Argument arg) {
    if (arg.arguments.size() == 2
        && arg.arguments.get(0) instanceof RuleList
        && arg.arguments.get(1) instanceof TypedLiteral) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      int index = BuiltinHelper.getInteger((TypedLiteral) arg.arguments
          .get(1));
      if (index < 0)
        index += list.getItems().size();
      if (index < 0 || index >= list.getItems().size())
        return null;
      else {
        final IExpression expr = list.getItems().get(index);
        return (Item) expr.evaluate(arg.binding);
      }
    } else
      return null;
  }

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Examples of lupos.rif.model.RuleList

  @Builtin(Name = "sublist")
  public static RuleList sublist(final Argument arg) {
    if (arg.arguments.size() > 1 && arg.arguments.size() < 4
        && arg.arguments.get(0) instanceof RuleList
        && arg.arguments.get(1) instanceof TypedLiteral) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      final int start = BuiltinHelper
          .getInteger((TypedLiteral) arg.arguments.get(1));
      int stop = list.getItems().size() - 1;
      if (arg.arguments.size() == 3
          && arg.arguments.get(2) instanceof TypedLiteral)
        stop = BuiltinHelper.getInteger((TypedLiteral) arg.arguments
            .get(2));
      List<IExpression> subList = list.getItems().subList(start, stop);
      final RuleList result = new RuleList();
      result.getItems().addAll(subList);
      return result;
    }
    return null;
  }

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Examples of lupos.rif.model.RuleList


  @Builtin(Name = "append")
  public static RuleList append(final Argument arg) {
    if (arg.arguments.size() > 1
        && arg.arguments.get(0) instanceof RuleList) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      boolean first = true;
      for (final Item item : arg.arguments) {
        if (first) {
          first = false;
          continue;
        }
        if (item instanceof Variable)
          list.addItem(new RuleVariable(item.getName()));
        else if (item instanceof Literal)
          list.addItem(new Constant((Literal) item, list));
        else if (item instanceof IExpression)
          list.addItem((IExpression) item);
      }
      return list;
    }
    return null;
  }

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Examples of lupos.rif.model.RuleList


  @Builtin(Name = "concatenate")
  public static RuleList concatenate(final Argument arg) {
    if (arg.arguments.size() > 0
        && arg.arguments.get(0) instanceof RuleList) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      boolean first = true;
      for (final Item item : arg.arguments) {
        if (first) {
          first = false;
          continue;
        }
        list.getItems().addAll(((RuleList) item).getItems());
      }
      return list;
    }
    return null;
  }

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Examples of lupos.rif.model.RuleList

  public static RuleList insert_before(final Argument arg) {
    if (arg.arguments.size() == 3
        && arg.arguments.get(0) instanceof RuleList
        && arg.arguments.get(1) instanceof TypedLiteral
        && arg.arguments.get(2) instanceof Item) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      int index = BuiltinHelper.getInteger((TypedLiteral) arg.arguments
          .get(1));
      final Item item = arg.arguments.get(2);
      if (index < 0)
        index += list.getItems().size();
      if (index < 0 || index >= list.getItems().size())
        return null;
      List<IExpression> original = new ArrayList<IExpression>(
          list.getItems());
      list.getItems().clear();
      for (int i = 0; i < original.size(); i++) {
        final IExpression expr = original.get(i);
        if (i == index) {
          if (item instanceof Variable)
            list.addItem(new RuleVariable(item.getName()));
          else if (item instanceof Literal)
            list.addItem(new Constant((Literal) item, list));
          else if (item instanceof IExpression)
            list.addItem((IExpression) item);
        }
        list.addItem(expr);
      }
      return list;
    }
    return null;
  }

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Examples of lupos.rif.model.RuleList

  @Builtin(Name = "remove")
  public static RuleList remove(final Argument arg) {
    if (arg.arguments.size() == 2
        && arg.arguments.get(0) instanceof RuleList
        && arg.arguments.get(1) instanceof TypedLiteral) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      int index = BuiltinHelper.getInteger((TypedLiteral) arg.arguments
          .get(1));
      if (index < 0)
        index += list.getItems().size();
      if (index < 0 || index >= list.getItems().size())
        return null;
      else {
        list.getItems().remove(index);
        return list;
      }
    } else
      return null;
  }

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Examples of lupos.rif.model.RuleList


  @Builtin(Name = "reverse")
  public static RuleList reverse(final Argument arg) {
    if (arg.arguments.size() == 1
        && arg.arguments.get(0) instanceof RuleList) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      List<IExpression> reversed = new ArrayList<IExpression>(
          Lists.reverse(list.getItems()));
      list.getItems().clear();
      list.getItems().addAll(reversed);
      return list;
    } else
      return null;
  }

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Examples of lupos.rif.model.RuleList

  @Builtin(Name = "index-of")
  public static RuleList index_of(final Argument arg) {
    if (arg.arguments.size() == 2
        && arg.arguments.get(0) instanceof RuleList
        && arg.arguments.get(1) instanceof Item) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      final Item item = arg.arguments.get(1);
      IExpression lookingFor = null;
      if (item instanceof Variable)
        lookingFor = new RuleVariable(item.getName());
      else if (item instanceof Literal)
        lookingFor = new Constant((Literal) item, list);
      else if (item instanceof IExpression)
        lookingFor = (IExpression) item;
      final RuleList results = new RuleList();
      for (int i = 0; i < list.getItems().size(); i++) {
        if (list.getItems().get(i).equals(lookingFor))
          results.addItem(new Constant(BuiltinHelper
              .createXSLiteral(i, "integer"), results));
      }
      return results;
    }
    return null;

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Examples of lupos.rif.model.RuleList


  @Builtin(Name = "union")
  public static RuleList union(final Argument arg) {
    if (arg.arguments.size() > 0
        && arg.arguments.get(0) instanceof RuleList) {
      final RuleList list = (RuleList) arg.arguments.get(0);
      final List<IExpression> newList = Lists.newArrayList();
      for (final IExpression expr : list.getItems())
        if (!newList.contains(expr))
          newList.add(expr);
      list.getItems().clear();
      list.getItems().addAll(newList);
      boolean first = true;
      for (final Item item : arg.arguments) {
        if (first) {
          first = false;
          continue;
        }
        for (final IExpression expr : ((RuleList) item).getItems())
          if (!list.getItems().contains(expr))
            list.addItem(expr);
      }
      return list;
    }
    return null;
  }

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