xquery
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><!-- Generated from data/head.php, ../../smarty/{head.tpl} --><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>XQuery Current Status - W3C</title><link rel="stylesheet" href="/2008/site/css/minimum" type="text/css" media="handheld, all" /><style type="text/css" media="print, screen and (min-width: 481px)" xml:space="preserve">
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<li class="current">XQuery Current Status</li>
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<h1 class="title">XQuery Current Status</h1>
<ul class="w3c_toc">
<li>
<a href="#completed">completed work</a>
— including <a href="#stds">standards</a>
<span class="bullet">• </span>
</li>
<li>
<a href="#drafts">drafts</a>
<span class="bullet">• </span>
</li>
<li>
<a href="#obsolete">obsolete specifications</a>
</li>
</ul>
<div id="w3c_content_body">
<div id="w3c_generated_status">
<p id="w3c_toggle_include" class="default_open intro tPadding">This page summarizes the relationships among specifications, whether they are finished standards or drafts. Below, each title
links to the most recent version of a document.
For related introductory information, see: <a href="http://www.w3.org/standards/xml/query">Query</a>.</p>
<h2 id="completed">Completed Work</h2>
<p>
<a href="/TR/tr-technology-stds">W3C Recommendations</a> have
been reviewed by W3C Members, by software developers, and by other
W3C groups and interested parties, and are endorsed by the
Director as Web Standards. Learn more about the <a href="/Consortium/Process/tr#rec-advance">W3C Recommendation
Track</a>.</p>
<p>
<a href="/2005/10/Process-20051014/tr.html#q75">Group Notes</a> are <em>not</em> standards and do not
have the same level of W3C endorsement.</p>
<h3 id="stds">Standards</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/xquery-update-10" title="XQuery Update Facility 1.0 publication history">2011-03-17</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2011/REC-xquery-update-10-20110317/">XQuery Update Facility 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xquery-update-10">translations</a>
·
<a href="http://www.w3.org/XML/2012/qt-errata/xquery-update-10-errata.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines an update facility that extends the XML
Query language, XQuery. The XQuery Update Facility provides
expressions that can be used to make persistent changes to
instances of the XQuery 1.0 and XPath 2.0 Data Model.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-full-text-10" title="XQuery and XPath Full Text 1.0 publication history">2011-03-17</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2011/REC-xpath-full-text-10-20110317/">XQuery and XPath Full Text 1.0</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xpath-full-text-10">translations</a>
·
<a href="http://www.w3.org/XML/2012/qt-errata/xpath-full-text-10-errata.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines the syntax and formal semantics of XQuery
and XPath Full Text 1.0 which is a language that extends XQuery 1.0
[XQuery 1.0: An XML Query Language] and XPath
2.0 [XML Path Language (XPath) 2.0] with
full-text search capabilities.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-datamodel" title="XQuery 1.0 and XPath 2.0 Data Model (XDM) (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xpath-datamodel-20101214/">XQuery 1.0 and XPath 2.0 Data Model (XDM) (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xpath-datamodel">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xpath-datamodel-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines the W3C XQuery 1.0 and XPath 2.0 Data
Model (XDM), which is the data model of [XPath
2.0], [XSLT 2.0], and [XQuery], and any other specifications that reference
it. This data model is based on the [XPath
1.0] data model and earlier work on an [XML
Query Data Model]. This document is the result of joint work by
the [XSL Working Group] and the [XML Query Working Group].</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-semantics" title="XQuery 1.0 and XPath 2.0 Formal Semantics (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xquery-semantics-20101214/">XQuery 1.0 and XPath 2.0 Formal Semantics (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xquery-semantics">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xquery-semantics-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines formally the semantics of <span>XQuery 1.0 [XQuery 1.0: An XML Query
Language]</span>
<span>and</span>
<span>XPath 2.0 [XML Path Language (XPath)
2.0]</span>.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-functions" title="XQuery 1.0 and XPath 2.0 Functions and Operators (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xpath-functions-20101214/">XQuery 1.0 and XPath 2.0 Functions and Operators (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xpath-functions">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xpath-functions-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines constructor functions, operators and
functions on the datatypes defined in [XML
Schema Part 2: Datatypes Second Edition] and the datatypes
defined in [XQuery 1.0 and XPath 2.0
Data Model]. It also discusses functions and operators on nodes
and node sequences as defined in the [XQuery 1.0 and XPath 2.0 Data Model]. These
functions and operators are defined for use in [XML Path Language (XPath) 2.0], [XQuery 1.0: An XML Query Language] and [XSL Transformations (XSLT) Version 2.0] and other
related XML standards. The signatures and summaries of functions
defined in this document are available at: http://www.w3.org/2005/xpath-functions.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xslt-xquery-serialization" title="XSLT 2.0 and XQuery 1.0 Serialization (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xslt-xquery-serialization-20101214/">XSLT 2.0 and XQuery 1.0 Serialization (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xslt-xquery-serialization">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xslt-xquery-serialization-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>This document defines serialization of an instance of the data
model as defined in [XQuery 1.0 and
XPath 2.0 Data Model] into a sequence of octets. Serialization
is designed to be a component that can be used by other
specifications such as [XSL Transformations
(XSLT) Version 2.0] or [XQuery 1.0: An XML
Query Language].</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery" title="XQuery 1.0: An XML Query Language (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xquery-20101214/">XQuery 1.0: An XML Query Language (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xquery">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xquery-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>XQuery 1.1 fixes some bugs and adds some substantial new features
to XQuery 1.0.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/xqueryx" title="XML Syntax for XQuery 1.0 (XQueryX) (Second Edition) publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is REC" href="http://www.w3.org/TR/2010/REC-xqueryx-20101214/">XML Syntax for XQuery 1.0 (XQueryX) (Second Edition)</a>
</h4>
<p class="rec_support_data">
<a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=xqueryx">translations</a>
·
<a href="http://www.w3.org/XML/2010/qt-errata/xqueryx-errata2e.html">errata</a>
</p>
<div class="expand_description">
<p>XQueryX Second Edition.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h3 id="notes">Group Notes</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/xquery-update-10-requirements" title="XQuery Update Facility 1.0 Requirements publication history">2011-01-25</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2011/NOTE-xquery-update-10-requirements-20110125/">XQuery Update Facility 1.0 Requirements</a>
</h4>
<div class="expand_description">
<p>This document specifies goals and requirements for the XQuery
Update Facility.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-update-10-use-cases" title="XQuery Update Facility 1.0 Use Cases publication history">2011-01-25</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2011/NOTE-xquery-update-10-use-cases-20110125/">XQuery Update Facility 1.0 Use Cases</a>
</h4>
<div class="expand_description">
<p>This document specifies usage scenarios for the XQuery Update
Facility.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-full-text-10-requirements" title="XQuery and XPath Full Text 1.0 Requirements publication history">2011-01-25</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2011/NOTE-xpath-full-text-10-requirements-20110125/">XQuery and XPath Full Text 1.0 Requirements</a>
</h4>
<div class="expand_description">
<p>The document specifies requirements for Full-Text Search for use
in XQuery [XQuery] and XPath [XPath].</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-full-text-10-use-cases" title="XQuery and XPath Full Text 1.0 Use Cases publication history">2011-01-25</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2011/NOTE-xpath-full-text-10-use-cases-20110125/">XQuery and XPath Full Text 1.0 Use Cases</a>
</h4>
<div class="expand_description">
<p>This document specifies usage scenarios for full-text queries as
part of XML Query [XQuery 1.0: An XML Query
Language] and XPath [XML Path Language
(XPath) 2.0].</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-requirements" title="XML Query (XQuery) Requirements publication history">2007-03-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2007/NOTE-xquery-requirements-20070323">XML Query (XQuery) Requirements</a>
</h4>
<div class="expand_description">
<p>The requirements for XQuery 1.0</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/xquery-use-cases" title="XML Query Use Cases publication history">2007-03-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is NOTE" href="http://www.w3.org/TR/2007/NOTE-xquery-use-cases-20070323/">XML Query Use Cases</a>
</h4>
<div class="expand_description">
<p>Some examples to help the Working Group reason about whether the XQuery
language was meeting people's needs; today it provides some useful examples.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h2 id="drafts">Drafts</h2>
<p>Below are draft documents:
<a href="/2005/10/Process-20051014/tr.html#last-call">Last Call Drafts</a>, <a href="/2005/10/Process-20051014/tr.html#RecsWD">other Working Drafts</a>.
Some of these may become Web Standards through the <a href="/Consortium/Process/tr#rec-advance">W3C Recommendation Track
process</a>. Others may be published as Group Notes or
become obsolete specifications.</p>
<h3 id="lcwd">Last Call Drafts</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/xquery-30" title="XQuery 3.0: An XML Query Language publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-xquery-30-20111213/">XQuery 3.0: An XML Query Language</a>
</h4>
<div class="expand_description">
<p>XQuery 3.0 (renamed from XQuery 1.1 to align with the family of "3.0"
specifications) is a versatile markup language, capable of labeling
the information content of diverse data sources including structured
and semi-structured documents, relational databases, and object
repositories. Important new features since XQuery 1.0 include:
<ul>
<li>The "group by" clause, windowing ("tumbling window" and "sliding
window"), the "count" clause, and the "allowing empty" clause in
FLWOR expressions</li>
<li>A try/catch capability to support application handling of errors</li>
<li>Literal function items, inline functions, dynamic function
invocations, and function item coercion</li>
<li>Nondeterministic functions and private functions</li>
<li>A value-based switch expression (analogous to the existing
typeswitch expression)</li>
<li>Computed namespace constructors</li>
<li>Declaration of serialization parameters</li>
<li>Support for new Functions and Operators 3.0 capabilities</li>
<li>Cleaner definition of module import</li>
</ul>
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xqueryx-30" title="XQueryX 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-xqueryx-30-20111213/">XQueryX 3.0</a>
</h4>
<div class="expand_description">
<p>XQueryX 3.0 (renamed from XQueryX 1.1 to align with the family of
"3.0" specifications) defines an XML syntax for the semantics defined
by XQuery 3.0. This publication is aligned with XQuery 3.0
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xslt-xquery-serialization-30" title="XSLT and XQuery Serialization 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-xslt-xquery-serialization-30-20111213/">XSLT and XQuery Serialization 3.0</a>
</h4>
<div class="expand_description">
<p>
XSLT and XQuery Serialization 3.0 (renamed from XQueryX 1.1 to align
with the family of "3.0" specifications) defines serialization of an
instance of XDM 3.0 into a sequence of octets. Important new
features in Serialization 3.0 include:
<ul>
<li>Supports serialization of function items</li>
<li>Adds a definition of a suppress-indentation serialization parameter</li>
<li>Clarifies how minimized attributes, as well as the "script" and
"style" elements, are handled under the rules of the HTML output method</li>
</ul>
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xpath-functions-30" title="XPath and XQuery Functions and Operators 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-xpath-functions-30-20111213/">XPath and XQuery Functions and Operators 3.0</a>
</h4>
<div class="expand_description">
<p>XPath and XQuery Functions and Operators 3.0 (renamed from XPath and
XQuery Functions and Operators 1.1 to align with the family of "3.0"
specifications) defines a library of functions available for use in
XPath 3.0, XQuery 3.0, and XSLT 3.0. Some of the new features since
XPath 2.0 and XQuery 1.0 Functions and Operators include:
<ul>
<li>More than 30 new functions have been added, including functions
transferred from the XSLT 2.0 specification into Functions and
Operators 3.0 and additional versions of existing functions with
different signatures</li>
<li>The syntax for regular expressions was enhanced to allow for
non-capturing groups; additionally, a new flag value was added for
regular-expression-related functions that accept a flag argument</li>
<li>Support for function items has been added in the form of a number
of new functions</li>
<li>The description of fn:error was rewritten to accommodate the
addition of try/catch capabilities in XQuery 3.0</li>
</ul>
</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/xpath-datamodel-30" title="XQuery and XPath Data Model 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is LCWD" href="http://www.w3.org/TR/2011/WD-xpath-datamodel-30-20111213/">XQuery and XPath Data Model 3.0</a>
</h4>
<div class="expand_description">
<p>XPath and XQuery Data Model (XDM) 3.0 (renamed from XPath and XQuery
Functions and Operators (XDM) 1.1 to align with the family of "3.0"
specifications) defines the data model on which all operations of
XPath 3.0, XQuery 3.0, and XSLT 3.0 operate. In this version of XDM,
two new data types have been added:
<ul>
<li>From XML Schema 1.1 Part 2 (Datatypes), the xs:dateTimeStamp data type</li>
<li>To support XPath 3.0's and XQuery 3.0's function item capabilities,
a function item data type</li>
</ul>
</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h3 id="wd">Other Working Drafts</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr>
<td class="table_datecol">
<a href="../history/xpath-full-text-30" title="XQuery and XPath Full Text 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2011/WD-xpath-full-text-30-20111213/">XQuery and XPath Full Text 3.0</a>
</h4>
<div class="expand_description">
<p>This document defines the syntax and formal semantics of XQuery
and XPath Full Text 3.0, which is a language that extends XQuery 3.0
[XQuery 3.0: An XML Query Language] and XPath 3.0 [XML Path Language
(XPath) 3.0] with full-text search capabilities.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-update-30" title="XQuery Update Facility 3.0 publication history">2011-12-13</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2011/WD-xquery-update-30-20111213/">XQuery Update Facility 3.0</a>
</h4>
<div class="expand_description">
<p>This document defines an update facility that extends the XML
Query language, XQuery. The XQuery Update Facility 3.0 provides
expressions that can be used to make persistent changes to instances
of the XQuery and XPath Data Model 3.0.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-30-use-cases" title="XQuery 3.0 Use Cases publication history">2010-12-14</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2010/WD-xquery-30-use-cases-20101214/">XQuery 3.0 Use Cases</a>
</h4>
<div class="expand_description">
<p>The design of XQuery 3.0 was supported by use cases gathered
following the XQuery 1.0 development timeframe. This Use Cases
document (renamed from XQuery Use Cases 1.1 to align with the family
of "3.0" specifications) corrects one Use Case.
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-30-requirements" title="XQuery 3.0 Requirements publication history">2010-09-16</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2010/WD-xquery-30-requirements-20100916/">XQuery 3.0 Requirements</a>
</h4>
<div class="expand_description">
<p>The design of XQuery 3.0 was driven by requirements gathered
following the XQuery 1.0 development timeframe. This Requirements
document (renamed from XQuery Requirements 1.1 to align with the
family of "3.0" specifications) provides an update on the status of
each requirements.
</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-sx-10" title="XQuery Scripting Extension 1.0 publication history">2010-04-08</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2010/WD-xquery-sx-10-20100408">XQuery Scripting Extension 1.0</a>
</h4>
<div class="expand_description">
<p>This specification defines an extension to [XQuery 1.0] and [XQuery Update
Facility]. Expressions can be evaluated in a specific order,
with later expressions seeing the effects of the expressions that
came before them. This specification introduces the concept of a
block with local variable declarations, as well as several new
kinds of expressions, including assignment, while, and exit
expressions.</p>
</div>
</td>
</tr>
<tr>
<td>
<a href="../history/xquery-sx-10-use-cases" title="XQuery Scripting Extension 1.0 Use Cases publication history">2008-12-03</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2008/WD-xquery-sx-10-use-cases-20081203/">XQuery Scripting Extension 1.0 Use Cases</a>
</h4>
<div class="expand_description">
<p>This document specifies usage scenarios for the XQuery Scripting
Extension.</p>
</div>
</td>
</tr>
<tr class="lastRow">
<td>
<a href="../history/xquery-sx-10-requirements" title="XQuery Scripting Extension 1.0 Requirements publication history">2007-03-23</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is WD" href="http://www.w3.org/TR/2007/WD-xquery-sx-10-requirements-20070323">XQuery Scripting Extension 1.0 Requirements</a>
</h4>
<div class="expand_description">
<p>This document specifies goals and requirements for the XQuery
Scripting Extension.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<h2 id="obsolete">Obsolete Specifications</h2>
<p>These specifications have either been superseded by others,
or have been abandoned. They remain available for archival
purposes, but are not intended to be used.</p>
<h3 id="retired">
Retired
</h3>
<div class="data lMargin rMargin">
<table class="w3c_spec_summary_table">
<tbody>
<tr class="lastRow">
<td class="table_datecol">
<a href="../history/xquery-xpath-parsing" title="Building a Tokenizer for XPath or XQuery publication history">2005-04-04</a>
</td>
<td>
<h4 class="w3c_status_title">
<a title="status is RETIRED" href="http://www.w3.org/TR/2005/WD-xquery-xpath-parsing-20050404/">Building a Tokenizer for XPath or XQuery</a>
</h4>
<div class="expand_description">
<p>This document describes possible strategies for tokenizing the [XML Path Language (XPath) 2.0] and [XQuery 1.0: An XML Query Language] languages, and is provided as a helpful guide to those who are designing an implementation for these languages, and as background material for the normative EBNF found in the language specifications. In the future this document may be expanded to cover more general parsing strategies.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
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