ref: f5cc6fbe3a7bcf8bdb002c646ddd519014afafd2
dir: /module/filepat.m/
Filepat: module
{
PATH: con "/dis/lib/filepat.dis";
# Turn file name with * ? [] into list of files. Slashes are significant.
expand: fn(pat: string): list of string;
# See if file name matches pattern; slashes not treated specially.
match: fn(pat, name: string): int;
};