1 files changed, 14 insertions, 3 deletions

diff --git a/scripts/metadata_filter.lua b/scripts/metadata_filter.lua
index 413ded5..4ac4a4d 100644
--- a/scripts/metadata_filter.lua
+++ b/scripts/metadata_filter.lua
@@ -19,6 +19,10 @@ function pandoc.List:take(n)
     return result
 end
 
+function slug(str)
+    return str:lower():gsub("[^ a-z]", ""):gsub("[ ]+", "-")
+end
+
 function file_exists(name)
     local f = io.open(name, "r")
     if f ~= nil then
@@ -196,6 +200,7 @@ function generate_list(meta)
                 subtitle = p.subtitle,
                 date = p.date,
                 url = p.url,
+                slug = p.slug,
                 thumbnail = p.thumbnail,
                 icon = p.icon or meta.icon,
                 post_icon = p.post_icon or meta.list_post_icon,
@@ -205,13 +210,14 @@ function generate_list(meta)
     elseif meta.depth == "2" then
         return meta.pages.all:map(function(cat)
             local limit = (cat.list_limit and tonumber(pandoc.utils.stringify(cat.list_limit))) or
-                              9999
+                9999
             local allItems = ((cat.pages and cat.pages.all) or pandoc.List()):map(function(p)
                 return {
                     title = p.title,
                     subtitle = p.subtitle,
                     date = p.date,
                     url = p.url,
+                    slug = p.slug,
                     thumbnail = p.thumbnail,
                     icon = p.icon or cat.icon,
                     post_icon = p.post_icon or cat.list_post_icon or meta.list_post_icon,
@@ -226,6 +232,7 @@ function generate_list(meta)
                 description = (cat.description and pandoc.MetaBlocks(pandoc.Para(cat.description))) or
                     (not cat.no_description and cat.content),
                 url = cat.url,
+                slug = cat.slug,
                 layout = cat.list_layout,
                 items = items,
                 total = tostring(#allItems),
@@ -235,7 +242,7 @@ function generate_list(meta)
     elseif meta.depth == "3" then
         return meta.pages.all:map(function(cat)
             local limit = (cat.list_limit and tonumber(pandoc.utils.stringify(cat.list_limit))) or
-                              9999
+                9999
             local allItems = (cat.pages and cat.pages.all or pandoc.List()):flatMap(function(c)
                 if c.pages then
                     return c.pages.all:map(function(p)
@@ -244,6 +251,7 @@ function generate_list(meta)
                             subtitle = p.subtitle,
                             category = c.title,
                             url = p.url,
+                            slug = p.slug,
                             thumbnail = p.thumbnail,
                             icon = p.icon or c.icon,
                             post_icon = p.post_icon or c.list_post_icon or cat.list_post_icon,
@@ -256,6 +264,7 @@ function generate_list(meta)
                         title = c.title,
                         subtitle = c.subtitle,
                         url = c.url,
+                        slug = c.slug,
                         icon = c.icon or cat.icon,
                         post_icon = c.post_icon or cat.list_post_icon,
                         indicator = cat.list_read_indicators,
@@ -271,6 +280,7 @@ function generate_list(meta)
                 description = (cat.description and pandoc.MetaBlocks(pandoc.Para(cat.description))) or
                     (not cat.no_description and cat.content),
                 url = cat.url,
+                slug = cat.slug,
                 layout = cat.list_layout,
                 items = items,
                 total = tostring(#allItems),
@@ -287,6 +297,7 @@ function process(global, meta)
     meta.url = meta.url and pandoc.utils.stringify(meta.url)
     meta.url = resolve_url(global.site.url, global.file_out, meta.url or meta.file_out)
     meta.title = (meta.title and pandoc.utils.stringify(meta.title)) or ""
+    meta.slug = slug(meta.title)
     if meta.list_order then meta.list_order = pandoc.utils.stringify(meta.list_order) end
     meta.list_layout = meta.list_layout and prep_layout(meta.list_layout)
     if meta.position then meta.position = pandoc.utils.stringify(meta.position) end
@@ -318,7 +329,7 @@ function process(global, meta)
     meta.pages = process_pages(global, meta.list_order, meta.pages)
     meta.depth = (meta.pages and find_depth(meta.pages.all)) or "0"
     meta.layout = prep_layout(meta.layout or (meta.redirect and "redirect") or
-                                  resolve_layout(meta.depth))
+        resolve_layout(meta.depth))
 
     if meta.date then
         meta.date = format_date(meta.date)