Why prefix and not exact-match?

[digikar99]

unix-opts/unix-opts.lisp

Line 257 in b805050

(let ((matches (remove-if-not #'prefix-p *options* :key key)))

Either my knowledge of unix is wrong, or this is a bug: why are we using prefix rather than exact-match? ls --al rather than ls --all clearly gets me an error on linux.

[digikar99]

TIL

$ ls --al
ls: option '--al' is ambiguous; possibilities: '--all' '--almost-all'
Try 'ls --help' for more information.
$ ls --alm
CHANGELOG.md  example  .gitignore  README.md   .travis.yml    unix-opts.lisp
.directory    .git     LICENSE.md  tests.lisp  unix-opts.asd
$ ls --all
.   CHANGELOG.md  example  .gitignore  README.md   .travis.yml    unix-opts.lisp
..  .directory    .git     LICENSE.md  tests.lisp  unix-opts.asd

[vindarel]

+1 thanks for the example