New absfigure shortcode

README.md

@@ -115,6 +115,8 @@ already implemented:
 - Reply by email: if you supply an email address, the theme creates a "Reply to
   this post by email" button at the end of every post (see Kev Quirk's [original
   implementation](https://kevquirk.com/adding-the-post-title-to-my-reply-by-email-button)).
+- `absfigure` shortcode: a shortcut to use the `figure` shortcode that also
+  converts relative URLs into absolute URLs by using the `absURL` function.
 - Single-use CSS (EXPERIMENTAL): you can add some styles to a single page by
   writing the CSS you need in `assets/{custom_css}.css` and then including
   `style: "{custom_css}.css"` in the [front

layouts/shortcodes/absfigure.html

@@ -0,0 +1,29 @@
+<figure{{ with .Get "class" }} class="{{ . }}"{{ end }}>
+    {{- if .Get "link" -}}
+        <a href="{{ .Get "link" }}"{{ with .Get "target" }} target="{{ . }}"{{ end }}{{ with .Get "rel" }} rel="{{ . }}"{{ end }}>
+    {{- end -}}
+    <img src="{{ .Get "src" | absURL}}"
+         {{- if or (.Get "alt") (.Get "caption") }}
+         alt="{{ with .Get "alt" }}{{ . }}{{ else }}{{ .Get "caption" | markdownify| plainify }}{{ end }}"
+         {{- end -}}
+         {{- with .Get "width" }} width="{{ . }}"{{ end -}}
+         {{- with .Get "height" }} height="{{ . }}"{{ end -}}
+         {{- with .Get "loading" }} loading="{{ . }}"{{ end -}}
+    /><!-- Closing img tag -->
+    {{- if .Get "link" }}</a>{{ end -}}
+    {{- if or (or (.Get "title") (.Get "caption")) (.Get "attr") -}}
+        <figcaption>
+            {{ with (.Get "title") -}}
+                <h4>{{ . }}</h4>
+            {{- end -}}
+            {{- if or (.Get "caption") (.Get "attr") -}}<p>
+                {{- .Get "caption" | markdownify -}}
+                {{- with .Get "attrlink" }}
+                    <a href="{{ . }}">
+                {{- end -}}
+                {{- .Get "attr" | markdownify -}}
+                {{- if .Get "attrlink" }}</a>{{ end }}</p>
+            {{- end }}
+        </figcaption>
+    {{- end }}
+</figure>