add anchor links for headlines

layouts/_default/list.html

@@ -2,6 +2,6 @@
     {{ partial "page-header" . }}
     <article class="gdoc-markdown">
         <h1>{{ partial "title" . }}</h1>
-        {{ .Content }}
+        {{ partial "content" . }}
     </article>
 {{ end }}

layouts/_default/single.html

@@ -3,6 +3,6 @@
 
     <article class="gdoc-markdown">
         <h1>{{ partial "title" . }}</h1>
-        {{ .Content | replaceRE `<nav id="TableOfContents">\s*<ul>\s*<li>\s*<ul>` `<nav id="TableOfContents"><ul>` | replaceRE `</ul>\s*</li>\s*</ul>\s*</nav>` `</ul></nav>` | safeHTML }}
+        {{ partial "content" . }}
     </article>
 {{ end }}

layouts/partials/content.html

@@ -0,0 +1,8 @@
+{{ $showAnchor := (and (default true .Page.Params.geekdocAnchor) (default true .Site.Params.geekdocAnchor)) }}
+
+{{ $.Scratch.Set "content" (.Content | replaceRE `<nav id="TableOfContents">\s*<ul>\s*<li>\s*<ul>` `<nav id="TableOfContents"><ul>` | replaceRE `</ul>\s*</li>\s*</ul>\s*</nav>` `</ul></nav>` | safeHTML) }}
+{{ if $showAnchor }}
+    {{ $.Scratch.Set "content" ($.Scratch.Get "content" | replaceRE "(<h[2-9] id=\"([^\"]+)\".+)(</h[2-9]+>)" `${1}&nbsp;<a class="gdoc-page__anchor" href="#${2}"><svg class="icon link"><use xlink:href="#link"></use></svg></a> ${3}</h>` | safeHTML) }}
+{{ end }}
+
+{{ $.Scratch.Get "content" }}

layouts/posts/single.html

@@ -5,6 +5,6 @@
         <h5>
             <strong>{{ .Date.Format $dateFormat }}</strong>
         </h5>
-        {{ .Content }}
+        {{ partial "content" . }}
     </article>
 {{ end }}