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;;; Copyright © 2019 Jakob L. Kreuze <zerodaysfordays@sdf.lonestar.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 (custom theme)
#:use-module (haunt builder blog)
#:use-module (haunt post)
#:use-module (haunt site)
#:use-module (ice-9 match)
#:use-module (srfi srfi-19)
#:export (jakob-theme))
(define (stylesheet name)
`(link (@ (rel "stylesheet")
(href ,(string-append "/css/" name ".css")))))
(define* (anchor content #:optional (uri content))
`(a (@ (href ,uri)) ,content))
(define %cc-by-sa-link
'(a (@ (href "https://creativecommons.org/licenses/by-sa/4.0/"))
"Creative Commons Attribution Share-Alike 4.0 International"))
(define %cc-by-sa-button
'(a (@ (class "cc-button")
(href "https://creativecommons.org/licenses/by-sa/4.0/"))
(img (@ (src "https://licensebuttons.net/l/by-sa/4.0/80x15.png")))))
(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 (first-paragraph post)
(let loop ((sxml (post-sxml post))
(result '()))
(match sxml
(() (reverse result))
((or (('p ...) _ ...) (paragraph _ ...))
(reverse (cons paragraph result)))
((head . tail)
(loop tail (cons head result))))))
(define jakob-theme
(theme #:name "jakob"
#:layout
(lambda (site title body)
`((doctype "html")
(html
(head
(meta (@ (charset "utf-8")))
(meta (@ (name "viewport")
(content "width=device-width, initial-scale=1.0")))
(link (@ (rel "alternate")
(type "application/atom+xml")
(href "http://jakob.space/index.xml")))
(link (@ (rel "me")
(href "https://mastodon.sdf.org/@jakob")))
(link (@ (rel "icon")
(type "image/png")
(href "http://jakob.space/favicon.png")))
(title ,(string-append title " — " (site-title site)))
,(stylesheet "fonts")
,(stylesheet "highlight")
,(stylesheet "jakob"))
(body
(div (@ (class "container"))
(nav
(ul (li ,(link "Jakob L. Kreuze" "/"))
(li (@ (class "fade-text")) " ")
(li ,(link "About" "/about.html"))
(li ,(link "Blog" "/index.html"))
(li ,(link "Feed" "/feed.xml"))
(li ,(link "Projects" "/projects.html"))))
,body
(footer (@ (class "text-center"))
(p (@ (class "copyright"))
"© 2019 Jakob L. Kreuze"
,%cc-by-sa-button)
(p "Unless otherwise specified, the text and images
on this site are free culture works available under the " ,%cc-by-sa-link "
license.")
(p "This website is built with "
(a (@ (href "http://haunt.dthompson.us"))
"Haunt")
", a static site generator written in "
(a (@ (href "https://gnu.org/software/guile"))
"Guile Scheme")
".")))))))
#:post-template
(lambda (post)
`((h1 (@ (class "title")),(post-ref post 'title))
(div (@ (class "date"))
,(date->string (post-date post)
"~B ~d, ~Y"))
(div (@ (class "tags"))
(ul
(li "Tagged as"
,@(map (lambda (tag)
`(li ,(link tag (format #f "/tag-~a.html" tag))))
(post-ref post 'tags)))))
(div (@ (class "post"))
,(post-sxml post))))
#:collection-template
(lambda (site title posts prefix)
(define (post-uri post)
(string-append "/" (or prefix "")
(site-post-slug site post) ".html"))
`((h1 ,title)
,(map (lambda (post)
(let ((uri (string-append "/"
(site-post-slug site post)
".html")))
`(div (@ (class "summary"))
(h2 (a (@ (href ,uri))
,(post-ref post 'title)))
(div (@ (class "date"))
,(date->string (post-date post)
"~B ~d, ~Y"))
(div (@ (class "post"))
,(first-paragraph post))
(a (@ (href ,uri)) "read more ➔"))))
posts)))))
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