works for multiple urls

pleroma-comments.lua

@@ -53,7 +53,7 @@ function write_comments(pleroma_posts, instance)
 </blockquote>
 ]]
     local comments = {}
-    local replies = pleroma_posts["descendants"]
+    local replies = pleroma_posts-- ["descendants"]
     for _, post in ipairs(replies) do
         local pid = post["id"]
         local datetime = get_short_date(post["created_at"])
@@ -77,21 +77,46 @@ function write_comments(pleroma_posts, instance)
     return comments
 end
 
+function combine_tables(a,b)
+    -- iterate through b, add to a
+    for i=1,#b do
+        table.insert(a, b[i])
+    end
+    return a
+end
 
 function Meta(meta)
     local elem = meta["pleroma-urls"]
-    print(elem)
+--     print(elem)
     if elem == nil then
         return -- abort
     end
-    local str = pandoc.utils.stringify(elem)
+    local all_replies = {}
+    local host = ""
+    for _, v in pairs(elem) do
+        local str = pandoc.utils.stringify(v)
+        print(str)
         local tokens = tokenizeString(str, '/')
         -- 1 = protocol, 2 = host ...
         -- https://host.tld/notice/12345
         local id = tokens[#tokens]
-    local host = tokens[2] 
+        host = tokens[2] 
         local url = "https://" .. host ..  "/api/v1/statuses/" .. id .. "/context"
-    meta["comments"] = write_comments(get(url), "https://" .. host)
+        local got = get(url)
+        if #all_replies == 0 then
+            all_replies = got["descendants"]
+        else
+            combine_tables(all_replies, got["descendants"])
+        end
+    end
+    table.sort(all_replies, 
+        function(a, b) 
+            local ta = get_epoch_time(a["created_at"])
+            local tb = get_epoch_time(b["created_at"])
+            return ta < tb
+        end
+    )
+    meta["comments"] = write_comments(all_replies, "https://" .. host)
     return meta
 end