match_pattern checks if text exists

2015-04-12 23:26:01 +02:00 · 2015-04-12 23:26:01 +02:00 · ca97baa60d
commit ca97baa60d
parent 4e4dc7ed11
1 changed files with 5 additions and 3 deletions
--- a/bot/utils.lua
+++ b/bot/utils.lua
@ -441,9 +441,11 @@ end

 -- Returns a table with matches or nil
 function match_pattern(pattern, text)
+  if text then
    local matches = { string.match(text, pattern) }
    if next(matches) then
      return matches
    end
+  end
  -- nil
 end