22.5 Customization Variables

Warning: These customization variable names and meanings may change in any Texinfo release. We always try to avoid incompatible changes, but we cannot absolutely promise, since needs change over time.

Many aspects of the behavior and output of texi2any may be modified by modifying so-called customization variables. These fall into four general categories:

• Those associated with @-commands; for example, @documentlanguage.
• Those associated with command-line options; for example, the customization variable SPLIT is associated with the --split command-line option, and TEXINFO_OUTPUT_FORMAT allows specifying the output format.
• Other ad hoc variables.

Customization variables may set on the command line using --set-customization-variable 'var value' (quoting the variable/value pair to the shell) or --set-customization-variable var=value (using =). A special value is ‘undef’, which sets the variable to this special “undefined” Perl value.

The sections below give the details for each of these.