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Developer(s) | Apache Software Foundation |
---|---|
Stable release | 2.12.2 (Xerces J) 3.2.3 (Xerces C++) / 24 January 2022 (Xerces J) 10 April 2020 (Xerces C++) |
Operating system | Cross-platform |
Type | XML parser library |
License | Apache License 2.0 |
Website | xerces |
In computing, Xerces is Apache's collection of software libraries for parsing, validating, serializing and manipulating XML. The library implements a number of standard APIs for XML parsing, including DOM, SAX and SAX2. The implementation is available in the Java, C++ and Perl programming languages.
The name "Xerces" is believed to commemorate the extinct Xerces blue butterfly (Glaucopsyche xerces). [1]
There are several language versions of the Xerces parser:
Language | Release Date | Version |
---|---|---|
Java | 2022-01-24 | 2.12.2 |
C++ | 2020-04-10 | 3.2.3 |
Perl | 2014-04-30 | 2.7.0 |
The features supported by Xerces depend on the language, the Java version having the most features.
Feature | Java [3] | C++ [4] | Perl |
---|---|---|---|
eXtensible Markup Language (XML) 1.0 Fourth Edition Recommendation | Yes | Partial | Partial |
eXtensible Markup Language (XML) 1.1 Second Edition Recommendation | Yes | Partial | Partial |
Namespaces in XML 1.1 Second Edition Recommendation | Yes | Partial | Partial |
Namespaces in XML 1.0 Second Edition Recommendation | Yes | Partial | Partial |
XML Inclusions (XInclude) Version 1.0 Second Edition Recommendation | Yes | Yes | Yes |
Simple API for XML (SAX) | Yes | Yes | Yes |
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 (DOM) Level 3 Core, Load and Save | Yes | Yes | Yes |
Element Traversal Specification | Yes | Yes | Yes |
XML Schema 1.0 Structures and Datatypes | Yes | Yes | Yes |
XML Schema 1.1 Structures and Datatypes | Yes | No | No |
XML Schema Definition Language (XSD): Component Designators (SCD) | Yes | No | No |
Java APIs for XML Processing (JAXP) 1.4 | Yes | No | No |
The Document Object Model (DOM) is a cross-platform and language-independent interface that treats an XML or HTML document as a tree structure wherein each node is an object representing a part of the document. The DOM represents a document with a logical tree. Each branch of the tree ends in a node, and each node contains objects. DOM methods allow programmatic access to the tree; with them one can change the structure, style or content of a document. Nodes can have event handlers attached to them. Once an event is triggered, the event handlers get executed.
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In computing, the Java API for XML Processing, or JAXP, one of the Java XML Application programming interfaces, provides the capability of validating and parsing XML documents. It has three basic parsing interfaces:
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for lists and {...}
for maps thus JSON files are valid YAML 1.2.
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, and runs every night on the official Sun JVM.
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Apparently, the parser was named after the now extinct Xerces blue butterfly, a native of the San Francisco peninsula.
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.