From: wurt--- via Guix-patches via <guix-patches@gnu.org>
To: 63955@debbugs.gnu.org
Cc: "Carlos Durán Domínguez" <wurt@wurtshell.com>
Subject: [bug#63955] [PATCH 1/5] utils: Add insert-before.
Date: Thu, 8 Jun 2023 17:14:35 +0200 [thread overview]
Message-ID: <20230608151438.1280-1-wurt@wurtshell.com> (raw)
In-Reply-To: <20230607171353.8445-1-wurt@wurtshell.com>
From: Carlos Durán Domínguez <wurt@wurtshell.com>
---
guix/utils.scm | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/guix/utils.scm b/guix/utils.scm
index b9657df292..5773b55116 100644
--- a/guix/utils.scm
+++ b/guix/utils.scm
@@ -17,6 +17,7 @@
;;; Copyright © 2022 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
;;; Copyright © 2022 Antero Mejr <antero@mailbox.org>
;;; Copyright © 2023 Philip McGrath <philip@philipmcgrath.com>
+;;; Copyright © 2023 Carlos Durán Domínguez <wurt@wurtshell.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -149,7 +150,9 @@ (define-module (guix utils)
string-distance
string-closest
- pretty-print-table))
+ pretty-print-table
+
+ insert-before))
\f
;;;
@@ -1128,6 +1131,19 @@ (define* (string-closest trial tests #:key (threshold 3))
#f +inf.0
tests)))
+\f
+;;;
+;;; List modification.
+;;;
+
+(define (insert-before pred lst1 lst2)
+ "Return a list appending LST2 just before the first element on LST1 that
+ satisfy the predicate PRED."
+ (cond
+ ((null? lst1) lst2)
+ ((pred (car lst1)) (append lst2 lst1))
+ (else (cons (car lst1) (insert-before pred (cdr lst1) lst2)))))
+
\f
;;;
;;; Prettified output.
--
2.40.1
next prev parent reply other threads:[~2023-06-08 15:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-07 17:13 [bug#63955] [PATCH 0/5] Add pam-gnupg support for Greetd wurt--- via Guix-patches via
2023-06-08 15:14 ` wurt--- via Guix-patches via [this message]
2023-06-08 15:14 ` [bug#63955] [PATCH 2/5] system: pam: Add pam-gnupg-module? wurt--- via Guix-patches via
2023-06-08 15:14 ` [bug#63955] [PATCH 3/5] services: pam-mount: Fix pam-gnupg incompatibility wurt--- via Guix-patches via
2023-06-08 15:14 ` [bug#63955] [PATCH 4/5] services: greetd: Add pam-gnupg support wurt--- via Guix-patches via
2023-06-08 15:14 ` [bug#63955] [PATCH 5/5] system: pam: Fix unix pam module order wurt--- via Guix-patches via
2023-08-31 7:43 ` bug#63955: (no subject) guix-patches--- via
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