add some forumoji

lib/babycode.lua

@@ -1,6 +1,7 @@
 local babycode = {}
 
 local string_trim = require("lapis.util").trim
+local emoji = require("lib.babycode-emoji")
 
 local function s_split(s, delimiter, max_matches, trim, allow_empty)
   local result = {}
@@ -121,6 +122,14 @@ function babycode.to_html(s, escape_html)
   
   -- these can be nested, so replace open and closed separately
   text = text:gsub("%[(/?)quote%]", "<%1blockquote>")
+  
+  text = text:gsub(":(.-):", function(code)
+    if emoji[code] then
+      return emoji[code]
+    else
+      return code
+    end
+  end)
 
   -- replace loose links
   text = text:gsub("(https?://[%w-_%.%?%.:/%+=&~%@#%%]+[%w-/])", function(url)