SYNOPSIS
use Complete::Regexp::Pattern qw(
complete_regexp_pattern_module
complete_regexp_pattern_pattern
);
my $res = complete_regep_pattern_module(word => 'L');
# -> {word=>['License', 'License/'], path_sep=>'/'}
my $res = complete_regep_pattern_pattern(word => 'Y');
# -> {word=>['YouTube/video_id'], path_sep=>'/'}