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52 lines
2 KiB
Scheme
52 lines
2 KiB
Scheme
;;; ui.scm -- user interface facilities for command-line tools
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;;; Copyright © 2016, 2017 Mathieu Lirzin <mthl@gnu.org>
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;;;
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;;; This file is part of Cuirass.
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;;;
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;;; Cuirass is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Cuirass is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Cuirass. If not, see <http://www.gnu.org/licenses/>.
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(define-module (cuirass ui)
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#:use-module (cuirass config)
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#:export (;; Procedures.
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show-version
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show-package-information
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;; Parameters.
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%program-name))
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(define %program-name
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;; Similar in spirit to Gnulib 'progname' module.
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(make-parameter ""
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(lambda (val)
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(cond ((not (string? val))
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(scm-error 'wrong-type-arg
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"%program-name" "Not a string: ~S" (list #f) #f))
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((string-rindex val #\/) => (lambda (idx) (substring val (1+ idx))))
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(else val)))))
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(define (show-version)
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"Display version information for COMMAND."
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(simple-format #t "~a (~a) ~a~%"
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(%program-name) %package-name %package-version)
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(display "Copyright (C) 2018 the Cuirass authors
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.")
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(newline))
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(define (show-package-information)
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(newline)
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(format #t "Report bugs to: ~a." %package-bugreport)
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(newline)
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(format #t "~A home page: <~A>" %package-name %package-url)
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(newline))
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