Re: Problem with table key iteration when string keys are unpredictable

[Sean Conner <sean@...>]

It was thus said that the Great Philipp Janda once stated:
> Am 21.05.2013 12:48 schröbte S. Fisher:
> >
> >function escape( s )
> >   return string.gsub(s, "[][^$()%.*+-?]", "%%%0" )
> >end
> >
> 
> Try:
> 
>     > =escape( "12345;:/<>%" )
>     %1%2%3%4%5%;%:%/%<%>%	10
> 
> which is probably not what you wanted. So you need to put a few more 
> escapes in there (at least before `%`, `.`, and `-`) ...
> 
> Philipp
> 
> 
> p.s.: Maybe we should have a string.escape() function in Lua's standard 
> library (or at least an example in the ref manual ready for copy & 
> paste) ...

  Or build up an LPeg expression: http://boston.conman.org/2013/01/14.1

  -spc