<?xml version="1.0" encoding="latin1" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2004</year><year>2010</year>
      <holder>Ericsson AB. All Rights Reserved.</holder>
    </copyright>
    <legalnotice>
      The contents of this file are subject to the Erlang Public License,
      Version 1.1, (the "License"); you may not use this file except in
      compliance with the License. You should have received a copy of the
      Erlang Public License along with this software. If not, it can be
      retrieved online at http://www.erlang.org/.

      Software distributed under the License is distributed on an "AS IS"
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
      the License for the specific language governing rights and limitations
      under the License.

    </legalnotice>

    <title>Xmerl Release Notes</title>
    <prepared>otp_appnotes</prepared>
    <docno>nil</docno>
    <date>nil</date>
    <rev>nil</rev>
    <file>notes.xml</file>
  </header>
  <p>This document describes the changes made to the Xmerl application.</p>


<section><title>Xmerl 1.2.8</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> The function xmerl_lib:expand_content/1 is mainly for
	    expanding Simple XML, but can also handle xmerl records.
	    This patch fixes an omission that caused expand_content/1
	    to not maintain the parents list when expanding
	    #xmlElement{} records. (Thanks to Ulf Wiger) </p>
          <p>
	    Own Id: OTP-9034</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> Removed some dialyzer warnings. </p>
          <p>
	    Own Id: OTP-9074</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.7</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> An empty element declared as simpleContent was not
	    properly validated. </p>
          <p>
	    Own Id: OTP-8599</p>
        </item>
        <item>
	    <p> Fix format_man_pages so it handles all man sections
	    and remove warnings/errors in various man pages. </p>
          <p>
	    Own Id: OTP-8600</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p> Fix entity checking so there are no fatal errors for
	    undefined entities when option skip_external_dtd is used.
	    </p>
          <p>
	    Own Id: OTP-8947</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
	    <p> Fixed problem with hex entities in UTF-8 documents:
	    When a document was in UTF-8 encoding, xmerl_scan
	    improperly replaced hex entities by the UTF-8 bytes
	    instead of returning the character, as it does with
	    inline UTF-8 text and decimal entities. (Thanks to Paul
	    Guyot.) </p>
          <p>
	    Own Id: OTP-8697</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.5</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            All Erlang files are now built by the test server instead of the test directory Makefile.
          </p>
          <p>
            Erlang files in data directories are now built by the test suites instead of using 
            prebuilt versions under version control.
          </p>
          <p>
            Removed a number of obsolete guards.
          </p>
          <p>
            Own Id: OTP-8537
          </p>
        </item>
        <item>
          <p>
           An empty element declared as a simpleContent was not properly validated.
          </p>
          <p>
            Own Id: OTP-8599
          </p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
            <p>Updated the documentation Makefile to work with the 
               new documentation build process.</p>
            <p>
            Own Id: OTP-8343</p>
        </item>
      </list>
    </section>

</section>


<section><title>Xmerl 1.2.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            A continuation clause of <c>parse_reference/3</c> had
            its parameters in wrong order.</p>
          <p>
            Own Id: OTP-8251 Aux Id: seq11429 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            A new option to turn off the parsing of an external DTD
            is added to <c>xmerl_sax_parser:file/2</c> and
            <c>xmerl_sax_parser:stream/2</c>
            (<c>skip_external_dtd</c>).</p>
          <p>
            Own Id: OTP-8252 Aux Id: seq11432 </p>
        </item>
        <item>
          <p>
            The documentation is now built with open source tools
            (xsltproc and fop) that exists on most platforms. One
            visible change is that the frames are removed.</p>
          <p>
            Own Id: OTP-8253</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            <c>xmerl_sax_parse:stream/2</c> failed with
            <c>{fatal_error,_, "Continuation function undefined, and
            more data needed",_,_}</c> when no continuation function
            was defined even though it was a complete document as
            input.</p>
          <p>
            Own Id: OTP-8213</p>
        </item>
        <item>
          <p>
            The namespace URI supplied on unprefixed attributes in
            startElement tuples is the same as the URI for the
            default namespace. According to the standard the
            namespace for an unprefixed attribute should always has
            no value.</p>
          <p>
            Own Id: OTP-8214</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.2.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            <c>xmerl/include/xmerl.hrl</c> contained internal debug
            macros (<c>dbg/2</c> and <c>DBG/0</c>) which now is moved
            to <c>xmerl_internal.hrl</c>.
          </p>
          <p>
            Own Id: OTP-8084
          </p>
        </item>
        <item>
          <p>
            The function <c>xmerl_uri:parse/1</c> couldn't handle FTP
            URIs containing username and password. The default FTP
            port constant was also wrong. (Thanks to Steve Vinoski)
          </p>
          <p>
            Own Id: OTP-8156
          </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            The SAX parser couldn't handle consecutive documents on
            the same stream. The return values are now changed so
            they return a rest value instead of giving an error about
            "erranous information after the end tag". 
          </p>
          <p>
            This means that
            the functions <c>file/2</c> and <c>stream/2</c> now
            returns <c>{ok, EventState, Rest}</c> when the parsing is
            correct. The rest can then be used as input to a new call
            to <c>xmerl_sax_parse:stream/2</c>. If one know that it's
            just one document the rest value in the result tuple can
            be matched against <c>&lt;&lt;&gt;&gt;</c> or <c>[]</c>
            depending on if the input is in binary form or not.
          </p>
          <p>
            Own Id: OTP-8153 Aux Id: seq11388 
          </p>
        </item>
      </list>
    </section>

</section>


<section><title>Xmerl 1.2</title>
    <section><title>Improvements and New Features</title>
	<p>
        In xmerl-1.2 we have added the first Beta version of the new 
        SAX parser (module: xmerl_sax_parser), it supports XML 1.0. 
        We call it Beta due to that the validation part is not ready yet and that the 
        parser still has some known limitations (mostly in the DTD area).
        </p>
	<p>
	Known limitations: 
        </p>
        <list type="bulleted">
          <item>the external DTD in the DOCTYPE declaration is handled but other external entities are not supported.</item>
          <item>the general entity values are just checked in the structure after replacement.</item>
          <item>
             parsed entities are supported on markup declaration level (e.g. partly replacement of markup 
             declaration with PEReference is not supported).
          </item>
          <item>conditionalSect in external DTD's are not supported.</item>
          <item>recursive loops in entity declarations are not detected.</item>
        </list>
	<p>	
	 The version is increased from 1.1.12 to 1.2 is due to that the new parser
         is dependent on the Unicode support that was added in OTP R13B. The old xmerl 
         functionality is not changed.
	</p>
        <p>
            Own Id: OTP-6635
        </p>
    </section>
</section>

<section><title>Xmerl 1.1.12</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            Updated copyright notice in source files</p>
          <p>
            Own Id: OTP-7847</p>
        </item>
      </list>
    </section>

</section>
 
<section><title>Xmerl 1.1.11</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            An empty element with a complexType and simpleContent was
            not properly validated. This error is now corrected.</p>
          <p>
            Own Id: OTP-7736</p>
        </item>
      </list>
    </section>

</section>
 
<section><title>Xmerl 1.1.10</title>
 
    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
           Changed the examples in Customization Functions Tutorial
           to correct Erlang code.
          </p>
          <p>
            Own Id: OTP-6053
          </p>
        </item>
        <item>
          <p>
            Some XPath errors solved, typo in compare function '!=',
            error in <c>id()</c> function.</p>
          <p>
            Own Id: OTP-6792 Aux Id: seq10570 </p>
        </item>
        <item>
          <p>
            The XPath function <c>contains()</c> now implemented. See
            XPath 1.0 section 4.2.</p>
          <p>
            Own Id: OTP-6873</p>
        </item>
        <item>
          <p>
           Fixed that xmerl_xsd:process_schema/2 with {xsdbase, Dirname} failed with enoent 
           and a number of inor documentation bugs in xmerl_xsd reference manual.
          </p>
          <p>
            Own Id: OTP-7165
          </p>
        </item>
        <item>
          <p>
            Fixed xmerl_scan's problem with numeric character references 
            followed by UTF-8 characters in the contents.
          </p>
          <p>
            Own Id: OTP-7430
          </p>
        </item>
        <item>
          <p>
           Fixed an incorrect guard for xmerl_scan:to_ucs/2.
          </p>
          <p>
            Own Id: OTP-7473
          </p>
        </item>
        <item>
          <p>
            Some bug corrections of xmerl XPath implementation, most
            provided by Matthew Dempsky.</p>
          <p>
            Own Id: OTP-7496</p>
        </item>
        <item>
          <p>
            Now with <c>string()</c> and <c>name()</c> all XPath
            functions are implemented. The string representation of
            QName by <c>name()</c> is "{Namespace URI}local-name".</p>
          <p>
            Own Id: OTP-7510</p>
        </item>

      </list>
    </section>
 
</section>


<section><title>Xmerl 1.1.9</title>
 
    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            A number of minor scanner faults have got more clear error messages. 
          </p>
          <p>
            Own Id: OTP-5998, Aux Id: seq9803
          </p>
        </item>
        <item>
          <p>
           An example error in the Xmerl Users Guide is corrected.
          </p>
          <p>
            Own Id: OTP-6947
          </p>
        </item>
        <item>
          <p>
           When xmerl_xsd:validate was executed the schema table in the state 
           was deleted and next execution would fail. This is now corrected.
          </p>
          <p>
            Own Id: OTP-7288
          </p>
        </item>
      </list>
    </section>
 
</section>


<section><title>Xmerl 1.1.8</title>
 
    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            A Kleene Closure child in a sequence consumed all
            following children. This problem has been fixed.</p>
          <p>
            Own Id: OTP-7211</p>
        </item>
        <item>
          <p>
            Now validating xhtml1-transitional.dtd. A certain
            contentspec with a succeeding choice, that didn't match
            all content, followed by other child elements caused a
            failure. This is now corrected.</p>
          <p>
            Own Id: OTP-7214</p>
        </item>
      </list>
    </section>
 
</section>

<section><title>Xmerl 1.1.7</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            xmerl's schema validation now takes default facets into
            account</p>
          <p>
            Own Id: OTP-7190</p>
        </item>
      </list>
    </section>

</section>

<section><title>Xmerl 1.1.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            Parsing XML with option <c>{validation,schema}</c> is now
            corrected.</p>
          <p>
            Own Id: OTP-6773</p>
        </item>
        <item>
          <p>
            union type is now supported</p>
          <p>
            Own Id: OTP-6877 Aux Id: seq10755 </p>
        </item>
        <item>
          <p>
            Now xmerl validates as expected when a sequence has a
            present group member and a following element.</p>
          <p>
            Own Id: OTP-6910</p>
        </item>
      </list>
    </section>

</section>

  <section>
    <title>Xmerl 1.1.5</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>The head of a substitutionGroup may have type anyType and
            thus allow members of any type. This was an oversight, but is
            now corrected.</p>
          <p>Own Id: OTP-6720</p>
        </item>
        <item>
          <p>A recursive group reference in a redefine refers to the
            definition in the redefined schema. See 4.2.2 in
            XMLSchema part1 "Schema Representation Constraint:
            Individual Component Redefinition" bullet 2.</p>
          <p>Own Id: OTP-6739</p>
        </item>
        <item>
          <p>Solved some content model problems, for instance in some
            cases failed when more than one choice.</p>
          <p>Own Id: OTP-6752</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.1.4</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>An additional format is possible for the simple syntax:
            <c>{Fun, State}</c>. The fun should retrieve the
            replacement in simple syntax format. The semantics of
            fun: <c>fun(State) -> code that creates replacement, then returns {SimpleSyntax,NewState} | done </c></p>
          <p>Own Id: OTP-6679</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.1.3</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Memory consumption decreased: moved transforming from
            utf-8 to unicode from an extra pass of the document to
            the occasion when a character is parsed. Removed use of
            lists:subtract. Those changes also speeds up parsing in
            some scenarios.</p>
          <p>Own Id: OTP-6599 Aux Id: seq10552 </p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.1.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Schema processor reprocessed schemas that already were
            processed, using process_schemas on a system of schemas
            with circular dependencies.</p>
          <p>Own Id: OTP-6460 Aux Id: seq10564 </p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>Dialyzer warnings now removed, i.e. dead code have been
            removed.</p>
          <p>Own Id: OTP-6507</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.1.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Bug in xmerl removed so that simple syntax element
            content is exported correctly.</p>
          <p>Own Id: OTP-6402 Aux Id: OTP-6099</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Xmerl failed to parse and export with the sax_file
            front-end. Therefore hook function calls were added in the
            parser and handling of text content were changed.</p>
          <p>Own Id: OTP-6043</p>
        </item>
        <item>
          <p>Bug in xmerl removed so that simple syntax element
            content is exported correctly.</p>
          <p>Own Id: OTP-6099</p>
        </item>
      </list>
    </section>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>xmerl now supports XMLSchema validation. Documentation in
            reference manual for xmerl. The release of XMLSchema
            validation should be considered as a beta release. The
            user interface may still be adjusted in a coming
            release. Opinions and evaluations are welcome.</p>
          <p>Own Id: OTP-6401</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>xmerl 1.0.5</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Code that caused compiler warnings has been reviewed.</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>xmerl 1.0.4</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>xmerl behaved strange parsing a XML-document with a
            copyright sign in a comment.</p>
          <p>Own Id: OTP-5599</p>
        </item>
        <item>
          <p>Line count for error messages in DTD improved, still
            problem because of ENTITY expansions. Didn't delete
            digraphs after recursion test. Now correctly parsing of
            declaration separators [28a-b].</p>
          <p>Own Id: OTP-5718</p>
        </item>
        <item>
          <p>Failed to validate a XML file with a content spec that
            had a choice of which one element was a sequence with
            optional elements, and all elements of that sequence were
            missing</p>
          <p>Own Id: OTP-5734</p>
        </item>
        <item>
          <p>Location paths for document root and attributes is now
            working as expected.</p>
          <p>Own Id: OTP-5895</p>
        </item>
        <item>
          <p>Now has the last() predicate in the XPATH modules the
            properties specified in ch 2.4 in the XPATH spec, i.e. if
            last() evaluates to a number other than the context
            position it is false, otherwise true.</p>
          <p>Own Id: OTP-5902</p>
        </item>
        <item>
          <p>The location path of a single wildcard now only selects
            element nodes.</p>
          <p>Own Id: OTP-5905</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.0.3</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Removed call of undefined function in xmerl_lib.</p>
          <p>Own Id: OTP-5587</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.0.2</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Better identification of errors in xml code.</p>
          <p>Own Id: OTP-5498 Aux Id: seq9803 </p>
        </item>
        <item>
          <p>Some minor bugs fixed.</p>
          <p>Own Id: OTP-5500</p>
        </item>
        <item>
          <p>Parser failed on PE reference as EnumeratedType AttType,
            now corrected.</p>
          <p>Own Id: OTP-5531</p>
        </item>
      </list>
    </section>
  </section>

  <section>
    <title>Xmerl 1.0.1</title>

    <section>
      <title>Fixed Bugs and Malfunctions</title>
      <list type="bulleted">
        <item>
          <p>Fixed bug in xmerl_xpath. Xpath expressions that select
            nodes of type text() didn't work, like "context/text()",
            "child::text()", "descendant::text()".</p>
          <p>Own Id: OTP-5268 Aux Id: seq9656 </p>
        </item>
        <item>
          <p>Minor bugs fixed.</p>
          <p>Own Id: OTP-5301</p>
        </item>
      </list>
    </section>
    <!-- p>There are also release notes for <url href="notes_history.html">older versions</url>.</p -->
  </section>

  <section>
    <title>Xmerl 1.0</title>

    <section>
      <title>Improvements and New Features</title>
      <list type="bulleted">
        <item>
          <p>The OTP release of xmerl 1.0 is mainly the same as
            xmerl-0.20 of http://sowap.sourceforge.net/. It is
            capable of parsing XML 1.0. There have only been minor
            improvements: Some bugs that caused an unexpected crash
            when parsing bad XML. Failure report that also tells
            which file that caused an error.</p>
          <p>Own Id: OTP-5174</p>
        </item>
      </list>
    </section>
  </section>
</chapter>

