DRAFT: add missing filter

Author: machow

docs/_filters/replace-readme-links.lua

@@ -0,0 +1,37 @@
+function Meta(meta)
+    replace_base_domain = tostring(meta.replace_base_domain[1].text)
+    replace_rel_path = tostring(meta.replace_rel_path[1].text)
+end
+
+-- pandoc Link object: replace the .qmd in the target with .html
+function Link(link)
+    -- replace .qmd with .html in target
+    -- replace beginning with replace_base_domain, accounting for / and ./ in paths
+    -- e.g. ./overview.qmd -> {replace_rel_path}/get-started/overview.html
+    -- e.g. /index.qmd -> {replace_base_domain}/index.html
+    -- e.g. https://example.com -> https://example.com
+    if link.target:match("%.qmd$") then
+        link.target = link.target:gsub("%.qmd$", ".html")
+        if link.target:match("^%./") then
+            link.target = link.target:gsub("^%./", replace_base_domain .. replace_rel_path .. "/")
+        end
+        if link.target:match("^/") then
+            link.target = link.target:gsub("^/", replace_base_domain .. "/")
+        end
+        -- if target does not start with http, do same as above
+        if not link.target:match("^http") then
+            link.target = replace_base_domain .. replace_rel_path .. "/" .. link.target
+        end
+    end
+
+    return link
+end
+
+return {
+    {
+        Meta = Meta
+    },
+    {
+        Link = Link
+    }
+}