add optinal lunr searching of pages (#3352)

assets/js/lunr/lunr-store.js

@@ -46,4 +46,38 @@ var store = [
         "teaser": {{ teaser | relative_url | jsonify }}
       }{%- unless forloop.last and l -%},{%- endunless -%}
     {%- endfor -%}
-  {%- endfor -%}]
+  {%- endfor -%}{%- if site.lunr.search_within_pages -%},
+  {%- for doc in site.pages -%}
+    {%- if forloop.last -%}
+      {%- assign l = true -%}
+    {%- endif -%}
+  {
+    "title": {{ doc.title | jsonify }},
+    "excerpt":
+        {%- if site.search_full_content == true -%}
+          {{ doc.content | newline_to_br |
+            replace:"<br />", " " |
+            replace:"</p>", " " |
+            replace:"</h1>", " " |
+            replace:"</h2>", " " |
+            replace:"</h3>", " " |
+            replace:"</h4>", " " |
+            replace:"</h5>", " " |
+            replace:"</h6>", " "|
+          strip_html | strip_newlines | jsonify }},
+        {%- else -%}
+          {{ doc.content | newline_to_br |
+            replace:"<br />", " " |
+            replace:"</p>", " " |
+            replace:"</h1>", " " |
+            replace:"</h2>", " " |
+            replace:"</h3>", " " |
+            replace:"</h4>", " " |
+            replace:"</h5>", " " |
+            replace:"</h6>", " "|
+          strip_html | strip_newlines | truncatewords: 50 | jsonify }},
+        {%- endif -%}
+      "url": {{ doc.url | absolute_url | jsonify }}
+  }{%- unless forloop.last and l -%},{%- endunless -%}
+  {%- endfor -%}
+{%- endif -%}]