Copyright © 2002, 2003 John Fleck
| Revision History | |
|---|---|
| Revision 1 | June 4, 2002 |
| Initial draft | |
| Revision 2 | June 12, 2002 |
| retrieving attribute value added | |
| Revision 3 | Aug. 31, 2002 |
| freeing memory fix | |
| Revision 4 | Nov. 10, 2002 |
| encoding discussion added | |
| Revision 5 | Dec. 15, 2002 |
| more memory freeing changes | |
| Revision 6 | Jan. 26. 2003 |
| add index | |
| Revision 7 | April 25, 2003 |
| add compilation appendix | |
| Revision 8 | July 24, 2003 |
| add XPath example | |
| Revision 9 | Feb. 14, 2004 |
| Fix bug in XPath example | |
| Revision 7 | Aug. 24, 2004 |
| Fix another bug in XPath example | |
Table of Contents
- Introduction
- Data Types
- Parsing the file
- Retrieving Element Content
- Using XPath to Retrieve Element Content
- Writing element content
- Writing Attribute
- Retrieving Attributes
- Encoding Conversion
- A. Compilation
- B. Sample Document
- C. Code for Keyword Example
- D. Code for XPath Example
- E. Code for Add Keyword Example
- F. Code for Add Attribute Example
- G. Code for Retrieving Attribute Value Example
- H. Code for Encoding Conversion Example
- I. Acknowledgements
Abstract
Libxml is a freely licensed C language library for handling XML, portable across a large number of platforms. This tutorial provides examples of its basic functions.
Libxml is a C language library implementing functions for reading, creating and manipulating XML data. This tutorial provides example code and explanations of its basic functionality.
Libxml and more details about its use are available on the project home page. Included there is complete API documentation. This tutorial is not meant to substitute for that complete documentation, but to illustrate the functions needed to use the library to perform basic operations.
The tutorial is based on a simple XML application I use for articles I write. The format includes metadata and the body of the article.
The example code in this tutorial demonstrates how to:
Parse the document.
Extract the text within a specified element.
Add an element and its content.
Add an attribute.
Extract the value of an attribute.
Full code for the examples is included in the appendices.