4. Interchange Special Variables

Interchange defines some special variables which control behavior. They can be of several types, and the conventions for using them depend on whether you have based your catalog and server on the standard "foundation" distribution.

We will distinguish between these by calling intrinsic variables CORE variables, noting the distribution variables as DISTRIBUTION, and noting the foundation catalog practices as FOUNDATION.

"Variable" configuration file definitions

Scratch

CGI

Values

Session variables

Values not transmitted from CGI

Global program variables