add week translator

sample/lua/week.lua

@@ -0,0 +1,34 @@
+--[[
+week_translator: 将 `week` 翻译为当前星期
+--]]
+
+local function translator(input, seg)
+   if (input == "week") then
+      if (os.date("%w") == "0") then
+         weekstr = "日"
+      end
+      if (os.date("%w") == "1") then
+         weekstr = "一"
+      end
+      if (os.date("%w") == "2") then
+         weekstr = "二"
+      end
+      if (os.date("%w") == "3") then
+         weekstr = "三"
+      end
+      if (os.date("%w") == "4") then
+         weekstr = "四"
+      end
+      if (os.date("%w") == "5") then
+         weekstr = "五"
+      end
+      if (os.date("%w") == "6") then
+         weekstr = "六"
+      end
+      yield(Candidate("week", seg.start, seg._end, "".."星期"..weekstr.."","星期"))
+      yield(Candidate("week", seg.start, seg._end, os.date("%Y年%m月%d日").."".."星期"..weekstr.."","星期"))
+      yield(Candidate("week", seg.start, seg._end, os.date("%Y年%m月%d日").."".."星期"..weekstr..""..os.date("%H:%M:%S"),"星期"))
+   end
+end
+
+return translator