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Subject: [bug#30303] [PATCH] linux-boot: Add find-long-options.
Resent-Message-ID: <handler.30303.B30303.15174384706711@debbugs.gnu.org>
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
References: <20180131122933.6051-1-dannym@scratchpost.org>
Date: Wed, 31 Jan 2018 23:41:05 +0100
In-Reply-To: <20180131122933.6051-1-dannym@scratchpost.org> (Danny
	Milosavljevic's message of "Wed, 31 Jan 2018 13:29:33 +0100")
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To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: 30303@debbugs.gnu.org

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> * gnu/build/linux/boot.scm (find-long-options): New variable.

[...]

> +(define (find-long-options option arguments)
> +  "Find OPTIONs among ARGUMENTS, where OPTION is something like \"consol=
e\".
> +Return the values associated with OPTIONs as a list, or the empty list on
> +failure."

s/on failure/if OPTION doesn't appear in ARGUMENTS/

> +  (let ((opt (string-append option "=3D")))
> +    (map (lambda (arg)
> +           (substring arg (+ 1 (string-index arg #\=3D))))
> +         (filter
> +           (lambda (arg)
> +             (string-prefix? opt arg))
> +         arguments))))

You can make it:

  (filter-map (lambda (arg)
                (and (string-prefix? opt arg)
                     (substring =E2=80=A6)))
              arguments)

OK with these changes, thanks!  :-)

Ludo=E2=80=99.