Re: Matching -- in a string

[Peter Odding <xolox@...>]

'-' has a special meaning as a pattern item. You can either escape it 
with %- or use the optional fourth parameter to string.find that turns 
off pattern matching:

> = string.find(a, '%-%-')
17      18
> = string.find(b, '%-%-')
nil
> = string.find(a, "--", 1, true)
17      18
> = string.find(b, "--", 1, true)
nil

peterhickman schreef:
> I am trying to do the following:
>
> a = 'this line has a -- comment'
> b = 'this line does not'
>
> print(string.find(a,"--"))
> print(string.find(b,"--"))
>
> but in both cases the results are
> 1   0
> 1   0
>
> how do I match "--" in a string?
>
> --
> Fear is Money