How to tell if something is put into the message box

[Alex Tweedly]

On 30/12/2016 09:07, Kay C Lan wrote:
>
> That is where the misunderstanding is, \w is a word character,
> equivalent to [a-zA-Z0-9_], not a word, so to get a single word
> (variable name) that is equal to or longer than a single character you
> need \w+
>
See - I said I was not an expert; I should have said I lacking even 
basic knowledge :-)

Sorry for taking us down a wrong path ....

-- Alex.