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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2018-2022 Saxonica Limited
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

package net.sf.saxon.event;

import net.sf.saxon.s9api.Location;
import net.sf.saxon.om.Item;
import net.sf.saxon.trans.XPathException;

/**
 * Implement the "sequence normalization" logic as defined in the XSLT 3.0/XQuery 3.0
 * serialization spec, for the case where there is no item-separator.
 *
 * This class is used only if no ItemSeparator is specified. Its effect is to insert
 * a single space as a separator between adjacent atomic values appearing in the top level
 * sequence.
 */

public class SequenceNormalizerWithSpaceSeparator extends SequenceNormalizer {

    public SequenceNormalizerWithSpaceSeparator(Receiver next) {
        super(next);
    }

    /**
     * Append an arbitrary item (node or atomic value) to the output
     * @param item           the item to be appended
     * @param locationId     the location of the calling instruction, for diagnostics
     * @param copyNamespaces if the item is an element node, this indicates whether its namespaces
*                       need to be copied. Values are {@link ReceiverOption#ALL_NAMESPACES}; the default (0) means
     */
    @Override
    public void append(Item item, Location locationId, int copyNamespaces) throws XPathException {
        decompose(item, locationId, copyNamespaces);
    }

    @Override
    protected String getErrorCodeForDecomposingFunctionItems() {
        return "SENR0001";
    }
}