GNU Libidn 1.25

Table of Contents

GNU Libidn
1 Introduction
- 1.1 Getting Started
- 1.2 Features
- 1.3 Library Overview
- 1.4 Supported Platforms
- 1.5 Getting help
- 1.6 Commercial Support
- 1.7 Downloading and Installing
  - 1.7.1 Installing under Windows
- 1.8 Bug Reports
- 1.9 Contributing
2 Preparation
- 2.1 Header
- 2.2 Initialization
- 2.3 Version Check
- 2.4 Building the source
- 2.5 Autoconf tests
- 2.6 Memory handling under Windows
- 2.7 Header file idn-free.h
- 2.8 Memory de-allocation function
3 Utility Functions
- 3.1 Header file stringprep.h
- 3.2 Unicode Encoding Transformation
- 3.3 Unicode Normalization
- 3.4 Character Set Conversion
4 Stringprep Functions
- 4.1 Header file stringprep.h
- 4.2 Defining A Stringprep Profile
- 4.3 Control Flags
- 4.4 Core Functions
- 4.5 Error Handling
- 4.6 Stringprep Profile Macros
5 Punycode Functions
- 5.1 Header file punycode.h
- 5.2 Unicode Code Point Data Type
- 5.3 Core Functions
- 5.4 Error Handling
6 IDNA Functions
- 6.1 Header file idna.h
- 6.2 Control Flags
- 6.3 Prefix String
- 6.4 Core Functions
- 6.5 Simplified ToASCII Interface
- 6.6 Simplified ToUnicode Interface
- 6.7 Error Handling
7 TLD Functions
- 7.1 Header file tld.h
- 7.2 Core Functions
- 7.3 Utility Functions
- 7.4 High-Level Wrapper Functions
- 7.5 Error Handling
8 PR29 Functions
- 8.1 Header file pr29.h
- 8.2 Core Functions
- 8.3 Utility Functions
- 8.4 Error Handling
9 Examples
- 9.1 Example 1
- 9.2 Example 2
- 9.3 Example 3
- 9.4 Example 4
- 9.5 Example 5
10 Invoking idn
- 10.1 Name
- 10.2 Description
- 10.3 Options
- 10.4 Environment Variables
- 10.5 Examples
- 10.6 Troubleshooting
11 Emacs API
- 11.1 Punycode Emacs API
- 11.2 IDNA Emacs API
12 Java API
- 12.1 Overview
- 12.2 Miscellaneous Programs
- 12.3 Possible Problems
- 12.4 A Note on Java and Unicode
13 C# API
14 Acknowledgements
15 History
Appendix A PR29 discussion
Appendix B On Label Separators
- B.1 Recommended Workaround
Appendix C Copying Information
- C.1 GNU Free Documentation License
Function and Variable Index
Concept Index

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GNU Libidn

This manual is last updated 27 April 2012 for version 1.25 of GNU Libidn.

Copyright © 2002-2012 Simon Josefsson.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled “GNU Free Documentation License”.

Introduction: How to use this manual.
Preparation: What you should do before using the library.
Utility Functions: Unicode transformation utility functions.
Stringprep Functions: Stringprep functions.
Punycode Functions: Punycode functions.
IDNA Functions: IDNA functions.
TLD Functions: TLD functions.
PR29 Functions: Detect strings non-idempotent under NFKC.
Examples: Demonstrate how to use the library.
Invoking idn: Command line interface to the library.
Emacs API: Emacs Lisp API for Libidn.
Java API: Notes on the Java port of Libidn.
C# API: Notes on the C# port of Libidn.
Acknowledgements: Whom to blame.
History: Rough outline of development history.

Appendices

Indices