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<h1 align="center">The EXSLT C library for Gnome</h1>

<h1 style="text-align: center">libexslt</h1>

<p>Libexslt is the <a href="http://www.exslt.org">EXSLT</a> C library
   developed for libxslt (a part of the Gnome project). Much of the
   initial work on the library was done by Thomas Broyer.  EXSLT itself
   is a community initiative to provide extensions to XSLT.

<p>This library is free software and can be reused in commercial applications
   (see the <a href="intro.html">intro</a>)</p>

<p></p>

<p>Logo designed by <a href="mailto:liyanage@access.ch">Marc Liyanage</a>.</p>

<h2><a name="Introducti">Introduction</a></h2>

<p>This document describes <a href="http://xmlsoft.org/XSLT/">libxslt</a>,
the <a href="http://www.w3.org/TR/xslt">XSLT</a> C library developed for the
<a href="http://www.gnome.org/">Gnome</a> project.</p>

<p>Here are some key points about libxslt:</p>
<ul>
  <li>Libxslt is a C implementation</li>
  <li>Libxslt is based on libxml for XML parsing, tree manipulation and XPath
    support</li>
  <li>It is written in plain C, making as few assumptions as possible, and
    sticking closely to ANSI C/POSIX for easy embedding. Should works on
    Linux/Unix/Windows.</li>
  <li>This library is released under the <a
    href="http://www.opensource.org/licenses/mit-license.html">MIT
  Licence</a></li>
  <li>Though not designed primarily with performances in mind, libxslt seems
    to be a relatively fast processor.</li>
</ul>

<h2><a name="Documentat">Documentation</a></h2>

<p>There are some on-line resources about using libxslt:</p>
<ol>
  <li>Check the <a href="html/libxslt-lib.html#LIBXSLT-LIB">API
    documentation</a> automatically extracted from code comments (using
        the program apibuild.py, developed for libxml, together with the
	    xsl script 'newapi.xsl' and the libxslt xsltproc program).</li>
  <li>Look at the <a href="http://mail.gnome.org/archives/xslt/">mailing-list
    archive</a>.</li>
  <li>Of course since libxslt is based on libxml, it's a good idea to at
    least read <a href="http://xmlsoft.org/">libxml description</a></li>
</ol>

<h2><a name="Reporting">Reporting bugs and getting help</a></h2>

<p>Well, bugs or missing features are always possible, and I will make a
point of fixing them in a timely fashion. The best way to report a bug is to
use the <a href="http://bugzilla.gnome.org/buglist.cgi?product=libxslt">Gnome
bug tracking database</a> (make sure to use the "libxslt" module name). I
look at reports there regularly and it's good to have a reminder when a bug
is still open. Be sure to specify that the bug is for the package libxslt.</p>

<p>For small problems you can try to get help on IRC, the #xml channel on
irc.gnome.org (port 6667) usually have a few person subscribed which may help
(but there is no guarantee and if a real issue is raised it should go on the
mailing-list for archival).</p>

<p>There is also a mailing-list <a
href="mailto:xslt@gnome.org">xslt@gnome.org</a> for libxslt, with an <a
href="http://mail.gnome.org/archives/xslt/">on-line archive</a>. To subscribe
to this list, please visit the <a
href="http://mail.gnome.org/mailman/listinfo/xslt">associated Web</a> page
and follow the instructions.</p>

<p>Alternatively, you can just send the bug to the <a
href="mailto:xslt@gnome.org">xslt@gnome.org</a> list, if it's really libxslt
related I will approve it.. Please do not send me mail directly especially
for portability problem, it makes things really harder to track and in some
cases I'm not the best person to answer a given question, ask the list
instead. <strong>Do not send code, I won't debug it</strong> (but patches are
really appreciated!).</p>

<p>Check the following too <span style="color: #E50000">before
posting</span>:</p>
<ul>
  <li><a href="search.php">use the search engine</a> to get informations
    related to your problem.</li>
  <li>make sure you are <a href="ftp://xmlsoft.org/">using a recent
    version</a>, and that the problem still shows up in those</li>
  <li>check the <a href="http://mail.gnome.org/archives/xslt/">list
    archives</a> to see if the problem was reported already, in this case
    there is probably a fix available, similarly check the <a
    href="http://bugzilla.gnome.org/buglist.cgi?product=libxslt">registered
    open bugs</a></li>
  <li>make sure you can reproduce the bug with xsltproc, a very useful thing
    to do is run the transformation with -v argument and redirect the
    standard error to a file, then search in this file for the transformation
    logs just preceding the possible problem</li>
  <li>Please send the command showing the error as well as the input and
    stylesheet (as an attachment)</li>
</ul>

<p>Then send the bug with associated informations to reproduce it to the <a
href="mailto:xslt@gnome.org">xslt@gnome.org</a> list; if it's really libxslt
related I will approve it. Please do not send mail to me directly, it makes
things really hard to track and in some cases I am not the best person to
answer a given question, ask on the list.</p>

<p>To <span style="color: #E50000">be really clear about support</span>:</p>
<ul>
  <li>Support or help <span style="color: #E50000">request MUST be sent to
    the list or on bugzilla</span> in case of problems, so that the Question
    and Answers can be shared publicly. Failing to do so carries the implicit
    message "I want free support but I don't want to share the benefits with
    others" and is not welcome. I will automatically Carbon-Copy the
    xslt@gnome.org mailing list for any technical reply made about libxml2 or
    libxslt.</li>
  <li>There is <span style="color: #E50000">no garantee for support</span>,
    if your question remains unanswered after a week, repost it, making sure
    you gave all the detail needed and the informations requested.</li>
  <li>Failing to provide informations as requested or double checking first
    for prior feedback also carries the implicit message "the time of the
    library maintainers is less valuable than my time" and might not be
    welcome.</li>
</ul>

<p>Of course, bugs reports with a suggested patch for fixing them will
probably be processed faster.</p>

<p>If you're looking for help, a quick look at <a
href="http://mail.gnome.org/archives/xslt/">the list archive</a> may actually
provide the answer, I usually send source samples when answering libxslt
usage questions. The <a
href="html/libxslt-lib.html#LIBXSLT-LIB">auto-generated documentation</a> is
not as polished as I would like (I need to learn more about Docbook), but
it's a good starting point.</p>

<p>You can help the project in various ways, the best thing to do first is to
subscribe to the mailing-list as explained before, check the <a
href="http://mail.gnome.org/archives/xslt/">archives </a>and the <a
href="http://bugzilla.gnome.org/buglist.cgi?product=libxslt">Gnome bug
database:</a>:</p>
<ol>
  <li>provide patches when you find problems</li>
  <li>provide the diffs when you port libxslt to a new platform. They may not
    be integrated in all cases but help pinpointing portability problems
  and</li>
  <li>provide documentation fixes (either as patches to the code comments or
    as HTML diffs).</li>
  <li>provide new documentations pieces (translations, examples, etc ...)</li>
  <li>Check the TODO file and try to close one of the items</li>
  <li>take one of the points raised in the archive or the bug database and
    provide a fix. <a href="mailto:daniel@veillard.com">Get in touch with me
    </a>before to avoid synchronization problems and check that the suggested
    fix will fit in nicely :-)</li>
</ol>

<h2><a name="Downloads">Downloads</a></h2>

<p>The latest versions of libxslt can be found on <a
href="ftp://xmlsoft.org/">xmlsoft.org</a> (<a
href="ftp://speakeasy.rpmfind.net/pub/libxml/">Seattle</a>, <a
href="ftp://fr.rpmfind.net/pub/libxml/">France</a>) or on the <a
href="ftp://ftp.gnome.org/pub/GNOME/MIRRORS.html">Gnome FTP server</a> as a
<a href="ftp://ftp.gnome.org/pub/GNOME/sources/libxslt/1.1/">source
archive</a>, Antonin Sprinzl also provides <a
href="ftp://gd.tuwien.ac.at/pub/libxml/">a mirror in Austria</a>. (NOTE that
you need the <a href="http://rpmfind.net/linux/RPM/libxml2.html">libxml2</a>,
<a href="http://rpmfind.net/linux/RPM/libxml2-devel.html">libxml2-devel</a>,
<a href="http://rpmfind.net/linux/RPM/libxslt.html">libxslt</a> and <a
href="http://rpmfind.net/linux/RPM/libxslt-devel.html">libxslt-devel</a>
packages installed to compile applications using libxslt.) <a
href="mailto:igor@zlatkovic.com">Igor  Zlatkovic</a> is now the maintainer of
the Windows port, <a
href="http://www.zlatkovic.com/projects/libxml/index.html">he provides
binaries</a>. <a href="mailto:Gary.Pennington@sun.com">Gary Pennington</a>
provides <a href="http://garypennington.net/libxml2/">Solaris binaries</a>.
<a href="mailto:Steve.Ball@zveno.com">Steve Ball</a> provides <a
href="http://www.zveno.com/open_source/libxml2xslt.html">Mac Os X
binaries</a>.</p>

<p><a name="Contribs">Contribs:</a></p>

<p>I do accept external contributions, especially if compiling on another
platform, get in touch with me to upload the package. I will keep them in the
<a href="ftp://xmlsoft.org/contribs/">contrib directory</a></p>

<p>Libxslt is also available from CVS:</p>
<ul>
  <li><p>The <a
    href="http://cvs.gnome.org/bonsai/rview.cgi?cvsroot=/cvs/gnome&amp;dir=libxslt">Gnome
    CVS base</a>. Check the <a
    href="http://developer.gnome.org/tools/cvs.html">Gnome CVS Tools</a>
    page; the CVS module is <b>libxslt</b>.</p>
  </li>
  <li><a href="ftp://xmlsoft.org/XSLT/cvs-snapshot.tar.gz">daily snapshots
    from CVS</a> are also provided</li>
</ul>

<p></p>

<p><a href="mailto:daniel@veillard.com">Daniel Veillard</a></p>
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MR SKB