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1;;; GNU Guix --- Functional package management for GNU
2;;; Copyright © 2026 Giacomo Leidi <[email protected]>
3;;;
4;;; This file is part of GNU Guix.
5;;;
6;;; GNU Guix is free software; you can redistribute it and/or modify it
7;;; under the terms of the GNU General Public License as published by
8;;; the Free Software Foundation; either version 3 of the License, or (at
9;;; your option) any later version.
10;;;
11;;; GNU Guix is distributed in the hope that it will be useful, but
12;;; WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
18
19(define-module (gnu services configuration utils)
20 #:use-module (ice-9 string-fun)
21 #:export (uglify-snake-case))
22
23(define (uglify-snake-case field-name)
24 "Serializes FIELD-NAME, a field name from @code{(gnu services configuration)},
25to a downcased, snake case string representation of the field name. Trailing
26@code{?} in the name are dropped and dashes are replaced with underscores.
27
28For example the procedure would convert @code{'A-Field?} to @code{\"a_field\"}."
29 (define str (symbol->string field-name))
30 (string-downcase
31 (string-replace-substring
32 (if (string-suffix? "?" str)
33 (string-drop-right str 1)
34 str)
35 "-" "_")))