ui: Make diagnostic message prefix translatable.

* guix/ui.scm (define-diagnostic): Expect PREFIX to be enclosed in
'G_'.   Emit call to 'gettext' on PREFIX.
(warning, info, report-error): Wrap prefix in 'G_'.
This commit is contained in:
Ludovic Courtès 2019-04-09 23:44:36 +02:00
parent 32813e8440
commit 26a2021a1f
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@ -124,35 +124,42 @@ (define-module (guix ui)
;;;
;;; Code:
(define-syntax-rule (define-diagnostic name prefix)
"Create a diagnostic macro (i.e., NAME), which will prepend PREFIX to all
(define-syntax define-diagnostic
(syntax-rules ()
"Create a diagnostic macro (i.e., NAME), which will prepend PREFIX to all
messages."
(define-syntax name
(lambda (x)
(syntax-case x ()
((name (underscore fmt) args (... ...))
(and (string? (syntax->datum #'fmt))
(free-identifier=? #'underscore #'G_))
#'(begin
(format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
(program-name) (program-name) prefix)
(format (guix-warning-port) (gettext fmt)
args (... ...))))
((name (N-underscore singular plural n) args (... ...))
(and (string? (syntax->datum #'singular))
(string? (syntax->datum #'plural))
(free-identifier=? #'N-underscore #'N_))
#'(begin
(format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
(program-name) (program-name) prefix)
(format (guix-warning-port)
(ngettext singular plural n %gettext-domain)
args (... ...))))))))
((_ name (G_ prefix))
(define-syntax name
(lambda (x)
(syntax-case x ()
((name (underscore fmt) args (... ...))
(and (string? (syntax->datum #'fmt))
(free-identifier=? #'underscore #'G_))
#'(begin
(format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
(program-name) (program-name)
(gettext prefix %gettext-domain))
(format (guix-warning-port) (gettext fmt %gettext-domain)
args (... ...))))
((name (N-underscore singular plural n) args (... ...))
(and (string? (syntax->datum #'singular))
(string? (syntax->datum #'plural))
(free-identifier=? #'N-underscore #'N_))
#'(begin
(format (guix-warning-port) "~:[~*~;guix ~a: ~]~a"
(program-name) (program-name)
(gettext prefix %gettext-domain))
(format (guix-warning-port)
(ngettext singular plural n %gettext-domain)
args (... ...))))))))))
(define-diagnostic warning "warning: ") ; emit a warning
(define-diagnostic info "")
;; XXX: This doesn't work well for right-to-left languages.
;; TRANSLATORS: The goal is to emit "warning:" followed by a short phrase;
;; "~a" is a placeholder for that phrase.
(define-diagnostic warning (G_ "warning: ")) ;emit a warning
(define-diagnostic info (G_ ""))
(define-diagnostic report-error "error: ")
(define-diagnostic report-error (G_ "error: "))
(define-syntax-rule (leave args ...)
"Emit an error message and exit."
(begin