Re: gsub problem?

[Manfred Lotz <manfred.lotz@...>]

On Sat, 05 Nov 2005 19:47:48 -0300
Romulo Bahiense <romulo@icontroller.com.br> wrote:

> > What do I do wrong? 
> 
> Probably the error is because string.gsub, when called with it's
> third argument as an string, use that as a replacement string.
> 
>  From the manual:
> 
> "string.gsub (s, pat, repl [, n])
> 
> (...)
> 
....

Yep, I found it in the reference in the meantime.


> 
> So, you need to escape those magic characters ('%'):
> 
> 
> function log(date,msg)
>     pat = "%date %str"
>     ostr = string.gsub(pat,"%%date",date)
>     ostr = string.gsub(ostr,"%%str",(string.gsub(msg, '%%', '%%%%')))
>     print(ostr)
> end
> 
> log(os.date(),"strange string %4 is this")
> 
> 

Thanks a lot. That answers my second question from my last post
perfectly.



-- 
Manfred