ASF: The Apache Xalan Project
Apache Xalan Project
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The Apache Xalan Project
We are proud to release version 2.7.3 of our Xalan Java project.
The Apache Xalan Project develops and maintains libraries and programs
that transform XML documents using XSLT standard stylesheets. Our
subprojects use the Java and C++ programing languages to implement
the XSLT libraries.
The Apache Xalan Project was reformed in 2011. It started as a
subproject of Apache XML which has since been officially retired.
The Apache Xalan Project continues as a top-level project governed by the
Apache Software Foundation as a collaborative software development community
dedicated to providing robust, full-featured, commercial-quality, and
freely available XSLT support on a wide variety of platforms.
The supported specifications are defined by the
W3C XSL Transformations (XSLT)
Version 1.0
and the
XML Path Language (XPath) Version 1.0
recommendations.
Contents:
Apache Xalan Projects
What is XSLT and XPath?
License information
Getting Involved
The project name and logo are derived from the ancient Xalam musical
instrument found in Africa. Note the difference in spelling. The project
name and logo are trademarks of the Apache Software Foundation.
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Apache Xalan Projects
There are currently two subprojects under the Apache Xalan Project:
Xalan C++
, and
Xalan Java
, representing
C++ and Java implementations of the
W3C XSL Transformations (XSLT)
Version 1.0
and the
XML Path Language (XPath) Version 1.0
recommendations.
Both the Java and C++ development teams provide libraries and
executable programs to transform XML documents using XSLT stylesheets.
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Xalan C++ Project
The
Xalan-C
project officially
released version 1.12 on the 7th June, 2020. The focus of this release
was stability and compatibility, fixing critical bugs and updating the
codebase to work with modern C++ standards and compilers, and adding a
CMake-based build to support all platforms with a single well-supported
build tool. The full changes are documented in the
Release History
Xalan-C 1.12 supports C++ development and has been successfully
tested on the following platforms:
FreeBSD-12 with LLVM 8
Linux and GCC 7.4 and GCC 9.3
MacOS and Xcode 9.4
Microsoft Visual Studio 2019
Microsoft Visual Studio 2017
Microsoft Visual Studio 2015
Xalan-C should work on any platform supported by CMake with a
standard C++ compiler.
Older releases are available on the
Apache Archives
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Xalan Java Project
The
Xalan-Java 2.7.3
was released in April 2023. You may download the current Xalan-Java
release
Xalan-Java 2.7.3
for your development. The
current work in progress can be found in the
git repository
The current release among other Xalan-J implementation features, fixes a Xalan-J XSLTC security issue that was registered
against version 2.7.2.
Many of the earlier Xalan-J distributions are still available on the
Apache Archives
This is a mature project. There has been some discussion about supporting XPath-2.
We could use your support in this major rework of the library.
You can follow the efforts and post your own contributions
on the Java users and developers mail lists.
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What is XSLT and XPath?
XSLT is the first part of the
Extensible Stylesheet Language (XSL)
It includes the XSL Transformation (XSLT) vocabulary and
XPath, a language for addressing parts of XML documents.
XSL also includes a vocabulary for specifying formatting semantics, however,
this is not part of the Apache Xalan Project. For more information on formatting objects, see the
Apache XML Graphics (Formatting Objects Project)
XSLT implementations, sometimes referred to as XSLT processors, use an XSL stylesheet to transform
XML documents into HTML, text, or other XML document types.
In structural terms, an XSL stylesheet
specifies the transformation of one tree of nodes (the XML input)
into another tree of nodes (the output or transformation result).
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License information
Xalan C++ and Xalan Java are made available under the
Apache Software License, Version 2.0.
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Getting Involved
We always appreciate people and organizations that wish to help
in the development and project support efforts.
You can follow the activity by reviewing the project
mail lists. Posting messages to these lists is how we
coordinate the activites related to the our projects.
The developers mail list [
xalan-dev
is for communicating issues to the Apache Xalan development teams.
Both the Java and C/C++ groups monitor the developers list.
All project change notices are posted to the developers list.
Each subproject has its own mail list for project specific user
issues.
The user list for Xalan C++
xalan-c-users
] is
for general user comments on the Xalan C++ project.
The user list for Xalan Java
xalan-j-users
] is
for general user comments on the Xalan Java project.
The Apache Software Foundation has guidance on
how to
participate
in the various development efforts.
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Security
Xerces and Xalan do what the XML specifications require by default. In some cases, this may not be appropriate behavior when working with untrusted input: the
XML Security Overview
mentions some potential risks. There are multiple methods for blocking access to external entities and for disallowing DOCTYPE declarations, and it is up to the downstream user of Xalan to block/reject these constructs where appropriate.
If you think you have found a security issue in Apache Xalan, please follow the
reporting guidelines
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Apache, Xalan, and the Feather logo are trademarks of The Apache Software Foundation
Web Page created on - Tue 2023-04-04