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utils: Add insert-expression procedure.

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* guix/utils.scm (define-module): Use (guix read-print) and export
(insert-expression).
(insert-expression): Add procedure.
* tests/utils.scm ("insert-expression"): Add test.

Change-Id: I971a43a78aa6ecaaef33c1a7a0db4b287eb85036
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Herman Rimm
2024-02-20 21:45:11 +01:00
committed by Ludovic Courtès
parent a1d0610f83
commit babd39e843
2 changed files with 25 additions and 0 deletions
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14
tests/utils.scm
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@@ -5,6 +5,7 @@
;;; Copyright © 2021 Simon Tournier <zimon.toutoune@gmail.com>
;;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be>
;;; Copyright © 2023 Foundation Devices, Inc. <hello@foundationdevices.com>
;;; Copyright © 2024 Herman Rimm <herman@rimm.ee>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -274,6 +275,19 @@ skip these tests."
string-reverse)
(call-with-input-file temp-file get-string-all)))
(test-equal "insert-expression"
"(define-public package-1\n 'package)\n
(define-public package-2\n 'package)\n"
(begin
(call-with-output-file temp-file
(lambda (port)
(display "(define-public package-2\n 'package)\n" port)))
(insert-expression `((filename . ,temp-file)
(line . 0)
(column . 0))
`(define-public package-1 'package))
(call-with-input-file temp-file get-string-all)))
(test-equal "string-distance"
'(0 1 1 5 5)
(list