Re: PatternMatching symbol for magic characters :-)

[Roberto Ierusalimschy <roberto@...>]

> I'm in Lua exploration, and I want to use its pattern matching.
> Basically I read  strings form a file and use that has pattern to
> scan program code...
> 
> so here my suggestion  ...
> 
> Can we have a  "%m"  symbol  representing lua  "magic" characters set ?
> basically   this   "^$()%.[]*+-?"
> 
> so it will be more nice to scan my source file and put exception
> characters in it.
> and  it will help writing more nice pattern when using in complex pattern

You can use %p (or, if you are an ANSI-C zealot, %W) for that job. Lua
ensures that any non-alphanumeric character can be escaped with '%' to
mean itself.

-- Roberto