${fn:contains()}

${fn:containsIgnoreCase()}

${fn:endsWith()}

${fn:endsWith()}

${fn:escapeXml()}

${fn:indexOf()}

${fn:join()}

${fn:length()}

${fn:replace()}

${fn:split()}

${fn:startsWith()}

${fn:substring()}

${fn:substringAfter()}

${fn:substringBefore()}

${fn:toLowerCase()}

${fn:toUpperCase()}

${fn:trim()}