3.1.1 Automatic file-name completion

Automatic completion of input file names is turned on by the ‘-e’ command-line option (see -e). When this option is in effect, input file names that include no period (have no extension) are completed automatically according to the contents of the following style-file entries:

Type of file	Style-file entry	Default
WEB file	ext.web	web
Change file	ext.ch	ch
Include file	ext.hweb	hweb
Change file for include file	ext.hch	hch

More than one extension may be specified, as a space-delimited list—e.g., ‘ext.web = "web wb"’; the first one that matches is used.