<c:if test="${pager.existPrePage}">
				<li class="page-item"><la:link
						styleClass="page-link"
						href="list/${pager.currentPageNumber - 1}">
					<la:message key="labels.prev_page" />
				</la:link></li>
			</c:if>
			<c:if test="${!pager.existPrePage}">
				<li class="page-item disabled"><a
						class="page-link" href="#"><la:message
						key="labels.prev_page" /></a></li>
			</c:if>
			<c:forEach var="p" varStatus="s"

     * <ul>
     *   <li>File sources resolve against their parent directory</li>
     *   <li>URL sources resolve against their base URL</li>
     *   <li>Other sources may not support resolution and return null</li>
     * </ul>
     * <p>
     * The implementation must handle:
     * <ul>
     *   <li>Both forward and back slashes as path separators</li>
     *   <li>Parent directory references (..)</li>

 *
 * <p>The DataIndexHelper supports:</p>
 * <ul>
 *   <li>Concurrent crawling of multiple data configurations</li>
 *   <li>Thread pool management for crawler execution</li>
 *   <li>Session-based crawling with cleanup operations</li>
 *   <li>Old document deletion after successful crawling</li>
 *   <li>Crawling execution monitoring and timing</li>
 * </ul>
 */
public class DataIndexHelper {

 *
 * <p>This service allows implementations to:</p>
 * <ul>
 *   <li>Pool identical objects to reduce memory footprint</li>
 *   <li>Intern objects for faster equality comparisons</li>
 *   <li>Apply custom optimization strategies</li>
 *   <li>Transform or modify objects during building</li>
 * </ul>
 *
 * <p>Implementations are discovered via the Java ServiceLoader mechanism and should

     * <ul>
     * <li>IDs must match, or an IllegalArgumentException is thrown</li>
     * <li>Text is taken from item1</li>
     * <li>Readings are merged, maintaining uniqueness</li>
     * <li>Fields, tags, languages, and roles are merged, maintaining uniqueness</li>
     * <li>Kinds are merged, maintaining uniqueness</li>
     * <li>Frequencies (queryFreq, docFreq) are summed</li>

     * <p>Supported parameters:</p>
     * <ul>
     * <li>encoding - Character encoding for request parameters</li>
     * <li>token_url - URL to request the token from</li>
     * <li>token_pattern - Regex pattern to extract the token</li>
     * <li>token_name - Name of the token parameter</li>
     * <li>token_method - HTTP method for token request (GET or POST)</li>
     * <li>token_parameters - Parameters for token request</li>

					<c:if test="${eoled}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left" title="<la:message key="labels.eol_error" />">
							<a class="nav-link active" href="${eolLink}" target="_olh"><i class="fas fa-times-circle text-danger" aria-hidden="true"></i></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"

					<c:if test="${eoled}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left" title="<la:message key="labels.eol_error" />">
							<a class="nav-link active" href="${eolLink}" target="_olh"><i class="fas fa-times-circle text-danger" aria-hidden="true"></i></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"

                        <ol class="breadcrumb float-sm-right">
                            <li class="breadcrumb-item"><la:link href="/admin/dict">
                                <la:message key="labels.dict_list_link"/>
                            </la:link></li>
                            <li class="breadcrumb-item"><la:message key="labels.dict_protwords_list_link"/></li>
                        </ol>
                    </div>
                </div>

 * <h3>String utilities</h3>
 *
 * <ul>
 *   <li>{@link Ascii}
 *   <li>{@link CaseFormat}
 *   <li>{@link CharMatcher}
 *   <li>{@link Splitter}
 *   <li>{@link Strings}
 * </ul>
 *
 * <h3>Function types</h3>
 *
 * <ul>
 *   <li>{@link Converter}
 *   <li>{@link Equivalence}
 * </ul>
 *
 * <h3>Other</h3>
 *
 * <ul>
 *   <li>{@link Enums}
 *   <li>{@link MoreObjects}
 *   <li>{@link Preconditions}