guix/i18n.scm

   1 ;;; GNU Guix --- Functional package management for GNU
   2 ;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
   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 (guix i18n)
  20   #:use-module (srfi srfi-26)
  21   #:export (G_
  22             N_
  23             P_
  24             %gettext-domain
  25             %package-text-domain))
  26
  27 ;;; Commentary:
  28 ;;;
  29 ;;; Internationalization support.
  30 ;;;
  31 ;;; Code:
  32
  33 (define %gettext-domain
  34   ;; Text domain for strings used in the tools.
  35   "guix")
  36
  37 (define %package-text-domain
  38   ;; Text domain for package synopses and descriptions.
  39   "guix-packages")
  40
  41 (define G_ (cut gettext <> %gettext-domain))
  42 (define N_ (cut ngettext <> <> <> %gettext-domain))
  43
  44 (define (P_ msgid)
  45   "Return the translation of the package description or synopsis MSGID."
  46   ;; Descriptions/synopses might occasionally be empty strings, even if that
  47   ;; is something we try to avoid.  Since (gettext "") can return a non-empty
  48   ;; string, explicitly check for that case.
  49   (if (string-null? msgid)
  50       msgid
  51       (gettext msgid %package-text-domain)))