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;;; Copyright © 2018-2021 David Thompson <davet@gnu.org>
;;;
;;; This program is free software; you can redistribute it and/or
;;; modify it under the terms of the GNU General Public License as
;;; published by the Free Software Foundation; either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(define-module (utils)
#:use-module (ice-9 rdelim)
#:use-module (srfi srfi-19)
#:export (date
stylesheet
anchor
link
centered-image
raw-snippet)
#:replace (link))
(define (date year month day)
"Create a SRFI-19 date for the given YEAR, MONTH, DAY"
(let ((tzoffset (tm:gmtoff (localtime (time-second (current-time))))))
(make-date 0 0 0 0 day month year tzoffset)))
(define (stylesheet name)
`(link (@ (rel "stylesheet")
(href ,(string-append "/css/" name ".css")))))
(define* (anchor content #:optional (uri content))
`(a (@ (href ,uri)) ,content))
(define (link name uri)
`(a (@ (href ,uri)) ,name))
(define* (centered-image url #:optional alt)
`(img (@ (class "centered-image")
(src ,url)
,@(if alt
`((alt ,alt))
'()))))
(define (raw-snippet code)
`(pre (code ,(if (string? code) code (read-string code)))))
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