Bug in Lua4.1w4 Multiple Assings?

[Dominik Wagner <nikdo@...>]

Hi there,

i have the following a little complicated looking code. It's not very 
useful, it was just a test of how something could be done. But i think i 
discovered a bug in lua4.1w4, because if you replace the multiple 
assingnment with two straight assings (what you definatley would do in 
this code anyway, because there's no need for the multiple one) then it 
works fine. if you keep the multiple assignment in the middle the 
assignment assings the return of strsub to "Return" AND "self.Pos" wich 
is quite strange.

-- snip --

do
   local myfunc=function(self)
      local Return

      print(self.Pos, type(self.Pos), self.Step, type(self.Step))

      if self.Pos<=strlen(self.String) then

         self.Pos,           Return =
         self.Pos+self.Step, 
strsub(self.String,self.Pos,self.Pos+self.Step-1)

--  Uncomment this and comment the above and everything works fine!
--         Return=strsub(self.String,self.Pos,self.Pos+self.Step-1)
--         self.Pos=self.Pos+self.Step

         return Return

      else
         return false
      end

   end

   local MetaTable={call=myfunc}

   function strstep(String,Step)
      local Return
      if Step==nil then Step=1 end

      Return={String=String,Pos=1,Step=Step}
      metatable(Return,MetaTable)

      return Return,Return()
   end

end


local Function

Function,String=strstep('1234567890',3)
while String~=false do
   print(String)
   String=Function()
end

-- snip --

Or do i have a strange typo in there?


-- http://www.DasGenie.com/ --
AIM: DasGenieDotCom - ICQ: 22369156

"Glück ist eine Verpflichtung. Wir sollten uns für das Glück entscheiden.
Wir sollten daran arbeiten. Und dabei sollten wir denen, die uns am
nächsten stehen, und auch jenen, die nur zufällig unseren Pfad kreuzen,
eine Hilfe sein, damit auch sie ihr Glück finden." - Richard Koch