Identifying empty lines of text

[hh]

You could try to use (respects UCI word boundaries):

if the num of trueWords in myString is 0

Works here in LC 7 and later.

> I use “the number of words in myString = 0” to test whether
> a line of text appears empty, since I want a line with only
> space characters to be understood as empty.
> But a line of text I pasted from elsewhere contained an
> invisible character whose charToNum value is 202, and this
> was counted as a word by my script.
> Is there a better way to test for a line of text that has no
> visible characters?
> Many thanks.
> 
> David Epstein