WoWInterface - Getting item details via slash command

Hi all

I am having an issue with getting the item string of an item linked in chat using a slash command.

Here is my code;

Code:

SLASH_TESTC1 = '/asd'

function SlashCmdList.TESTC(msg, editbox)

  print('*** Chat Link Test Start ***')

  local itemID = tonumber(string.match(msg, 'item:(%d+):'))

  if msg=="" or msg==nil then

      print('no message')

  else

      print('message =', msg)

  end  

  if itemID then

      print('itemID =', itemID)

  else 

      print('no item')

  end  

  print('*** Chat Link Test End ***')

end

I am running this in game using the hack addon with the following results;

Code:

-- /asd

*** Chat Link Test Start ***

no message 

no item

*** Chat Link Test End ***

Code:

-- /asd<<shift clicked item link

Type'help' for a listing of a few commands.

I am not getting any errors in bugsack.

The first result is what I expect but the second result I dont understand when I do link an item why i do not get the opening and closing and the full message prints.

How do I correctly get the item ID of an item linked in chat?

Any help will be greatly appreciated.