What are the chars that the url can include?

[eluser]Leo78[/eluser]
Hey,

I am creating a search in my website, the address has to be in this pattern:

Code:

www.domain.com/news/search/query/
www.domain.com/news/search/query/2/

The first pattern is when you are in page number 1 and the second pattern is when you are in page number 2+.

So I created the following code in routs.php:

Code:

$route['news/search/(:any)'] = 'news_ci/sorting/search/$1/1';
$route['news/search/(:any)/([1-9]+)'] = 'news_ci/sorting/search/$1/$2';

The problem is for example the user types www.domain.com/news/query/char/ then he gets a SQL error, I'm pretty sure it's because I use slash in the end of the address. so instead writing (:any) I want to write a pattern which includes all (:any) pattern includes, without the slash.