Re: String search: the need for a "literal" pattern

[Shmuel Zeigerman <shmuz@...>]

On 21/07/2011 13:08, steve donovan wrote:
> function.escape(s)
>      return (s:gsub('[%-%.%+%[%]%(%)%$%^%%%?%*]','%%%1'))
> end
>
> (I hope it is correct, since it is from Penlight)

Inside a character class [....], you don't have to escape characters 
other than:
^ - % ]
I.e., the following characters could be unescaped:
. + [ ( ) $ ? *

--
Shmuel