[PATCH] Allows hyphens in variable names so can access hyphenated query vars

[Maxim Dounin]

Hello!

On Mon, Aug 07, 2017 at 04:15:33PM +0100, Mark Ellis via nginx-devel wrote:

> Ok. How would you suggest accessing query parameters with hyphens?
> 
> e.g. `?foo-bar=123`
> 
> how would you get the value of foo-bar?

It is more or less trivial to extract anything from $args using a 
regular expression.  And the same applies to things like 
"foo$bar=123", or any other fancy character you want to use in the 
query string.

Alternative solution would be to avoid such naming, and use 
aphanumeric plus "_" as directly accessible via $arg_* variables.

-- 
Maxim Dounin
http://nginx.org/