AutoGen is a tool designed to simplify the creation and maintenance
of programs that contain large amounts of repetitious text. It is
especially valuable in programs that have several blocks of text
that must be kept synchronized.

AutoGen can now accept XML files as definition input, in addition
to CGI data (for producing dynamic HTML) and traditional AutoGen
definitions.

A common example where this would be useful is in creating and
maintaining the code required for processing program options.
Processing options requires multiple constructs to be maintained
in parallel in different places in your program. Options maintenance
needs to be done countless times. So, AutoGen comes with an add-on
package named AutoOpts that simplifies the maintenance and documentation
of program options.