Cross-out deprecated modules

_includes/directory-tree.html

@@ -3,24 +3,30 @@
 
 Page Front Matter directory-tree hash parameters:
 
-  emphasize   Emphasize the page in the tree.
-              Default: false.
+  emphasize     Emphasize the page in the tree.
+                Default: false.
+
+  de-emphasize  De-emphasize the page in the tree.
+                Default: false.
 
 Tree include parameters:
 
-  dir         The top-level directory of the tree.
-              If the path ends with a slash, the directory itself will be excluded from the tree.
-              Default: The root directory.
+  dir           The top-level directory of the tree.
+                If the path ends with a slash, the directory itself will be excluded from the tree.
+                Default: The root directory.
 
 Tree parameters that can be passed as include hash, Front Matter directory-tree hash or Liquid variables with directory-tree- prefix:
 
-  li          The generated tree is a list item. Do not wrap an <ul> tag around it.
+  li            The generated tree is a list item. Do not wrap an <ul> tag around it.
+
+  dir_class     Add a class attribute with the specified classes to <li> tags of all directories.
+                If not set, wrap a <strong> tag around titles of all directories.
 
-  dir_class   Add a class attribute with the specified classes to <li> tags of all directories.
-              If not set, wrap a <strong> tag around titles of all directories.
+  strong        Wrap a <strong> tag around titles of the pages that have set `emphasize: true` in the Front Matter.
+                Default: false.
 
-  strong      Wrap a <strong> tag around titles of the pages that have `emphasize: true` in the Front Matter.
-              Default: false.
+  del           Wrap a <del> tag around titles of the pages that have set `de-emphasize: true` in the Front Matter.
+                Default: false.
 {%- endcomment -%}
 {%- unless include.li or page.directory-tree.li or directory-tree-li %}<ul>{%- endunless %}
   {%- assign dir_class = include.dir_class | default: directory-tree-dir_class | default: page.directory-tree.dir_class -%}
@@ -103,8 +109,15 @@
       {%- else -%}
         {%- assign strong = "" -%}
         {%- assign strong_closing = "" -%}
+      {%- endif -%}
+      {%- if pg.directory-tree.de-emphasize and include.del or page.directory-tree.del or directory-tree-del -%}
+        {%- assign del = "<del>" -%}
+        {%- assign del_closing = "</del>" -%}
+      {%- else -%}
+        {%- assign del = "" -%}
+        {%- assign del_closing = "" -%}
       {%- endif %}
-      <li><a href="{{ site.baseurl }}{{ pg.url }}">{{ strong }}{{ pg.title }}{{ strong_closing }}</a></li>
+      <li><a href="{{ site.baseurl }}{{ pg.url }}">{{ strong }}{{ del }}{{ pg.title }}{{ del_closing }}{{ strong_closing }}</a></li>
     {%- endunless -%}
   {% endfor -%}
   {%- assign offset = include.dir | split: "/" | size -%}

_layouts/doc.html

@@ -3,6 +3,7 @@
 
 {%- assign directory-tree-li = true -%}
 {%- assign directory-tree-strong = true -%}
+{%- assign directory-tree-del = true -%}
 {%- assign directory-tree-dir_class = "r-docs-subnav list-group-item" %}
 
 <style>
@@ -22,6 +23,7 @@
 		font-weight: bold;
 		color: #de4700;
 	}
+	.r-docs-nav a:not(.active-link) > del { opacity: 0.4; }
 
 	.r-docs-subnav ul {
 		list-style: none;

doc/modules/emails.md

@@ -1,6 +1,8 @@
 ---
 layout: doc
 title: Emails module
+directory-tree:
+  de-emphasize: true
 ---
 
 # Emails module

doc/modules/ip_score.md

@@ -1,6 +1,8 @@
 ---
 layout: doc
 title: IP Score module
+directory-tree:
+  de-emphasize: true
 ---
 
 # IP Score

doc/modules/surbl.md

@@ -1,6 +1,8 @@
 ---
 layout: doc
 title: SURBL module
+directory-tree:
+  de-emphasize: true
 ---
 
 # SURBL module

doc/modules/trie.md

@@ -1,6 +1,8 @@
 ---
 layout: doc
 title: Trie module
+directory-tree:
+  de-emphasize: true
 ---
 
 # Trie plugin