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installer: Sort keyboard layouts according to language and translations.

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Previously, we would always (1) put English first, and (2) sort the
other layouts based on their English description.  This fixes both
issues.

* gnu/installer/newt/keymap.scm (sort-layouts)[layout<?]: New procedure.
[preferred]: New variable.
Partition according to both the 'name' and 'synopsis' fields.  Sort both
the main layouts and the other layouts according to 'layout<?'.
This commit is contained in:
Ludovic Courtès 2019-04-17 15:16:08 +02:00
parent 818595a974
commit 9015e63996
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1 changed files with 19 additions and 3 deletions
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22
gnu/installer/newt/keymap.scm
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@ -28,6 +28,7 @@ (define-module (gnu installer newt keymap)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (ice-9 i18n)
#:use-module (ice-9 match)
#:export (run-keymap-page
keyboard-layout->configuration))
@ -64,14 +65,29 @@ (define (run-variant-page variants variant->text)
(define (sort-layouts layouts)
"Sort LAYOUTS list by putting the US layout ahead and return it."
(define (layout<? layout1 layout2)
(let ((text1 (x11-keymap-layout-description layout1))
(text2 (x11-keymap-layout-description layout2)))
;; XXX: We're calling 'gettext' more than once per item.
(string-locale<? (gettext text1 "xkeyboard-config")
(gettext text2 "xkeyboard-config"))))
(define preferred
;; Two-letter language tag for the preferred keyboard layout.
(or (getenv "LANGUAGE") "us"))
(call-with-values
(lambda ()
(partition
(lambda (layout)
(let ((name (x11-keymap-layout-name layout)))
(string=? name "us")))
;; The 'synopsis' field is usually a language code (e.g., "en")
;; while the 'name' field is a country code (e.g., "us").
(or (string=? (x11-keymap-layout-name layout) preferred)
(string=? (x11-keymap-layout-synopsis layout) preferred)))
layouts))
(cut append <> <>)))
(lambda (main others)
(append (sort main layout<?)
(sort others layout<?)))))
(define (sort-variants variants)
"Sort VARIANTS list by putting the international variant ahead and return it."