Editing Apache Xerces

{{Infobox software
| name = Apache Xerces
| logo = Apache Xerces logo.svg
| logo caption = 
| screenshot = 
| caption = 
| developer = [[Apache Software Foundation]]
| latest release version = 2.12.2 (Xerces J)<br />3.2.3 (Xerces C++)
| latest release date = 24 January 2022 (Xerces J)<br />10 April 2020 (Xerces C++)
| latest preview version = 
| latest preview date = 
| programming language = 
| operating system = [[Cross-platform]]
| genre = [[XML]] parser [[Library (computing)|library]]
| license = [[Apache License 2.0]]
| website = {{URL|//xerces.apache.org/}}
}}
In [[computing]], '''Xerces''' is [[Apache Software Foundation|Apache]]'s collection of [[software library|software libraries]] for parsing, validating, serializing and manipulating [[XML]]. The library implements a number of standard [[Application programming interface|API]]s for XML parsing, including [[Document Object Model|DOM]], [[Simple API for XML|SAX]] and SAX2. The implementation is available in the [[Java (programming language)|Java]], [[C++]] and [[Perl]] programming languages.

The name "Xerces" is believed to commemorate the extinct [[Xerces blue]] butterfly (''Glaucopsyche xerces'').<ref>
{{cite book
| last1                 = Benz
| first1                = Brian
| last2                 = Durant
| first2                = John 
| title                 = XML Programming Bible
| date = 7 May 2004
| url                   = https://books.google.com/books?id=fsR0qWu2glcC
| publisher             = John Wiley & Sons
| publication-date      = 2004
| page                  = 87
| isbn                  = 9780764555763
| access-date            = 2014-10-01
| quote                 = Apparently, the parser was named after the now extinct Xerces blue butterfly, a native of the San Francisco peninsula.
}}
</ref>

== Xerces language versions ==
There are several language versions of the Xerces parser:
* Xerces2 Java, the Java reference implementation
* Xerces C++, a C++ implementation
* Xerces Perl, a Perl implementation. This implementation is a wrapper around the C++ API.<ref>{{cite web
| url=https://xerces.apache.org/#xerces-p
| title=Apache Xerces Perl
| publisher=xerces.apache.org
| access-date=2019-12-08
| quote=''XML::Xerces is the Perl API to the Apache project's Xerces XML parser. It is implemented using the Xerces C++ API, and it provides access to most of the C++ API from Perl.''
}}</ref>

{| class="wikitable"
|-
!width=60| Language
!width=110| Release Date
!width=60| Version
|-
|Java||2022-01-24||2.12.2
|-
|C++||2020-04-10||3.2.3
|-
|Perl||2014-04-30||2.7.0
|-
|}

== Features ==
The features supported by Xerces depend on the language, the Java version having the most features.

{| class="wikitable" style="width:90%;"
|-
! style="width:40%;"|Feature !! style="width:20%;"|Java<ref>{{cite web
| url=http://xerces.apache.org/xerces2-j/
| title=Features
| publisher=xerces.apache.org
| access-date=2019-12-08
}}</ref> !! style="width:20%;"|C++<ref>{{cite web
| url=http://xerces.apache.org/xerces-c/
| title=Features
| publisher=xerces.apache.org
| access-date=2019-12-08
}}</ref> !! style="width:20%;"|Perl
|-
| eXtensible Markup Language (XML) 1.0 	Fourth Edition Recommendation || {{yes}} || {{partial}}{{ref|xml10}} || {{partial}}{{ref|xml10}}
|-
| eXtensible Markup Language (XML) 1.1 Second Edition Recommendation || {{yes}} || {{partial}}{{ref|xml11}} || {{partial}}{{ref|xml11}}
|-
| [[XML namespace|Namespaces in XML]] 1.1 Second Edition Recommendation || {{yes}} || {{partial}}{{ref|namespace10}} || {{partial}}{{ref|namespace10}}
|-
| [[XML namespace|Namespaces in XML]] 1.0 Second Edition Recommendation || {{yes}} || {{partial}}{{ref|namespace11}} || {{partial}}{{ref|namespace11}}
|-
| [[XInclude|XML Inclusions (XInclude)]] Version 1.0 Second Edition Recommendation || {{yes}} || {{yes}} || {{yes}}
|-
| [[Simple API for XML|Simple API for XML (SAX)]] || {{yes}} || {{yes}} || {{yes}}
|-
| [[StAX|Streaming API For XML (StAX)]]  || {{yes}} || {{no}} || {{no}}
|-
| DOM Level 2 Core Specification || {{yes}} || {{yes}} || {{yes}}
|-
| DOM Level 2 Traversal and Range Specification || {{yes}} || {{yes}} || {{yes}}
|-
| [[Document Object Model| Document Object Model (DOM)]] Level 3 Core, Load and Save || {{yes}} || {{yes}} || {{yes}}
|-
| Element Traversal Specification || {{yes}} || {{yes}} || {{yes}}
|-
| [[XML Schema (W3C)|XML Schema]] 1.0 Structures and Datatypes || {{yes}} || {{yes}} || {{yes}}
|-
| [[XML Schema (W3C)#Version 1.1|XML Schema]] 1.1 Structures and Datatypes || {{yes}} || {{no}} || {{no}}
|-
| XML Schema Definition Language (XSD): Component Designators (SCD) || {{yes}} || {{no}} || {{no}} 
|-
| [[Java API for XML Processing|Java APIs for XML Processing (JAXP)]] 1.4  || {{yes}} || {{no}} || {{no}} 
|}

==See also==
*[[Apache License]]
*[[Java XML]]
*[[Apache Xalan]]

==References==
{{Reflist}}

==Notes==
*{{note|xml10}} Implemented third edition.
*{{note|xml11}} Implemented second edition. Section 2.13 Normalization Checking has not been implemented.
*{{note|namespace10}} Implemented first edition.
*{{note|namespace11}} Implemented first edition.

==External links==
*[//xerces.apache.org/ Apache Xerces Project home]

{{Apache Software Foundation}}

[[Category:Apache Software Foundation projects|Xerces]]
[[Category:C++ libraries]]
[[Category:Java (programming language) libraries]]
[[Category:Java platform]]
[[Category:Software using the Apache license]]
[[Category:XML parsers]]