Latest Interchange documentation

This Interchange documentation is the most accurate, reliable and up-to-date source of Interchange information you'll find anywhere.  Almost all of the 500+ pages of Interchange documentation text have been either created from scratch, rewritten or updated in some way.

All of the Interchange documentation pages are neatly categorised and extensively cross-referenced to help you quickly find the information you need In fact, the documentation is so good, this website even has its own awards section.

The Interchange documentation presented here is by no means complete.  If you discover some information that is present elsewhere, but missing from this website, then please let us know so that we can improve this resource for the benefit of all Interchange users.  Likewise, if you have any suggestions, or would like to contribute some text, then please get in touch.

I'm sure you'll find it refreshing to discover that contributed text will actually be used, if accurate, or corrected if obvious errors are found.  We find that it's better to publish as many contributions as possible, rather than ignore them or just let them pile up in a giant TODO list.

Interchange versions The documentation on this website covers Interchange 5.0.0 through to the latest 5.4.2 (stable) and 5.5.3 (development) versions.  If a facility was removed prior to version 5.0.0 then it probably won't be documented here.

Documentation categories

• Interchange tags
  Documentation for the Interchange markup language tags and their calling parameters. 
  
  
• Interchange configuration
  Directives for use in the global (interchange.cfg) and/or local (catalog.cfg) configuration files, and in any files included from them. 
  
  
• Interchange database
  Documentation for Interchange's database access facilities. 
  
  
• Interchange forms
  Documentation for Interchange's form processing facilities. 
  
  
• Interchange ecommerce functions
  Documentation for the ecommerce-related functionality provided by Interchange. 
  
  
• Interchange Perl usage
  Pages associated with the use of Perl within Interchange. 
  
  
• Data/text filters
  Data/text filters that can be used within Interchange pages and elsewhere.  See the Filter directive, and ICML tags such as [filter] and [PREFIX-filter] tags etc.
  

Copyright and licence

A proportion of the Interchange documentation, displayed on this website, is derived from text with the following copyright:

• Copyright © 1996-2005 Members of the Interchange development group.
• Copyright © 1996-2002 Red Hat, Inc.

Interchange and all of its documentation, including all of the documentation in this website, is published under the terms of the

GNU General Public Licence  version 2 or, at your option, any later version.

For the purpose of applying the

GNU General Public Licence  to this Interchange documentation, we consider "source code" to refer to the unprocessed plain text, with or without the Wikitext markup, and "object code" to refer to the formatted HTML text.

Documentation published on external websites may have different copyright and licence terms.  We are not responsible for the content or accuracy of external websites.