Combining tabled strings

[James C. W. <jfc...@ya...>]

Looks like my response a couple weeks ago never got through for some reason, sorry. Resending.  
So actually that "if" problem was just a typo on my part,
sorry. However, a new spanner is in the works: Pipmak still doesn't seem to
translate the concatenation into the literal string needed. It just prints out
the standard "Unused key 13 pressed" and does nothing when I press
enter (the trigger for this whole thing). Note that if I replace the string
"HELP" in the query with the raw concatenation, pipmak finds equality
and it works.(But of course that doesn't help, cause that just makes Pipmak see
anything the player types as being correct.) 
Here's the chunk that seems to be the problem:
 
 
 elseif key == pipmak.key_return
then
      local execute =
table.concat(keypress)
      if execute ==
"HELP" then
       pipmak.schedule(2,
function() 
        preScreen =
pipmak.newimage(460, 340)
        preScreen:color(100, 33,
248)
        screen:setimage(preScreen)
        preScreen:drawtext(50,
90, ">:_" .. table.concat(keypress) .. "",
"../fonts/Daniel_J_-_Deka.otf", 18, pipmak.left)
        preScreen:drawtext(50,
120, "VISITOR LOG \nMAP \nCOMMUNICATION \nEMERGENCY",
"../fonts/Daniel_J_-_Deka.otf", 18, pipmak.left)
        screen:setimage(preScreen)
       end)
      return true
      else 
        return false
      end
Thanks, 
  James CW
--- On Wed, 11/30/11, Christian Walther <cwa...@gm...> wrote:


>From: Christian Walther <cwa...@gm...>
>Subject: Re: Combining tabled strings
>To: pip...@li...
>Date: Wednesday, November 30, 2011, 3:48 PM
>
>
>James C. Wilson wrote:
>> local execute = ""..keypress[1]..""..keypress[2]..""..keypress[3]..
>> ""..keypress[4].. ""..keypress[5].. ""..keypress[6].. ""..keypress[7]..
>> ""..keypress[8].. ""..keypress[9].. ""..keypress[10].. ""
>>
>> if execute == "map" then
>
>Works for me. By the way, you don't need all these empty strings - this 
>works too:
>
>   local execute = keypress[1]..keypress[2]..keypress[3]..
> 
    keypress[4]..keypress[5]..keypress[6]..keypress[7]..keypress[8]..
>     keypress[9]..keypress[10]
>
>And if you want to save some typing, or handle variable-sized lists, a 
>shorter version is
>
>   local execute = table.concat(keypress)
>
>(see http://www.lua.org/manual/5.0/manual.html#5.4 )
>
>> I receive an "unexpected symbol near "if" error.
>
>That suggests that there is something wrong with what comes before the 
>"if" - Lua is not expecting an "if" there, but something that completes 
>whatever comes before.
>
>  -Christian
>
>
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