# class WikiCloth::LuaExtension

### Protected Instance Methods

init_lua() click to toggle source

    # File lib/wikicloth/extensions/lua.rb, line 46
    def init_lua
      if @options[:disable_lua].nil?
        begin
          @options[:disable_lua] ||= DISABLE_LUA
          lua_max_lines = @options[:lua_max_lines] || 1000000
          lua_max_calls = @options[:lua_max_calls] || 20000

          unless @options[:disable_lua]
            @options[:luabridge] = Lua::State.new
            @options[:luabridge].eval(File.read(File.join(File.expand_path(File.dirname(__FILE__)), "lua", "luawrapper.lua")))
            @options[:luabridge].eval("wrap = make_wrapper(#{lua_max_lines},#{lua_max_calls})")
          end
        rescue
          @options[:disable_lua] = true
        end
      end
    end

lua_eval(code) click to toggle source

    # File lib/wikicloth/extensions/lua.rb, line 64
    def lua_eval(code)
      @options[:luabridge]['chunkstr'] = code
      @options[:luabridge].eval("res, err = wrap(chunkstr, env, hook)")
      unless @options[:luabridge]['err'].nil?
        if @options[:luabridge]['err'] =~ /LOC_LIMIT/
          "<span class=\"error\">#{I18n.t("max lines of code")}</span>"
        elsif @options[:luabridge]['err'] =~ /RECURSION_LIMIT/
          "<span class=\"error\">#{I18n.t("recursion limit reached")}</span>"
        else
          "<span class=\"error\">#{@options[:luabridge]['err']}</span>"
        end
        nil
      else
        @options[:luabridge]['res']
      end
    end