Re: Regex

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Jesse.Hazen@xxxxxxxxxxxxx schreef:
> Hi,
> 
>  
> 
> Brand new to regex. So I have a cli which runs a regex on users input,
> to make sure that only 0-9 and A-Z are accepted. It should strip
> everything else. My problem is that when you press control-Z (on
> Windows; I have not yet tested this on linux, and I will, but I would
> like this to be compatible with both OS's) it loops infinitely saying
> invalid data (because of the next method call, which decides what to do
> based on your input). So, here is the input code. Is there a way I can
> ensure that control commands are stripped, here?
> 

there is, your control-Z is not a Z at all, and it's only printed as ^Z
so you can see it ... it's actually a non-printing char.

try this regexp for stripping control chars:

/[\x00-\x1f]+/

>  
> 
>  
> 
>  
> 
>             public function getSelection() {
> 
>  
> 
>                         $choice =
> $this->validateChoice(trim(strtoupper(fgets(STDIN))));
> 
>                         return $choice;
> 
>  
> 
>             }
> 
>  
> 
>             private function validateChoice($choice) {
> 
>  
> 
>                         $choice =
> ereg_replace("/[^0-9A-Z]/","",$choice);
> 
>                         return $choice;
> 
>  
> 
>             }
> 
>  
> 
>  
> 
>  
> 
> I have tried a ton of different things to try and fix this. Tried
> /\c.|[^0-9A-Z]/, and many variations of \c and the [^0-9A-Z], to no
> avail. I also tried using both preg_replace() as well as ereg_replace().
> I spent a lot of time on the regex section of the PHP manual, but I am
> not finding anything. Any advise on how to accomplish this?
> 
>  
> 
>  
> 
>  
> 
> Thanks,
> 
>  
> 
> Jesse Hazen
> 
> 


-- 
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php


[Index of Archives]     [PHP Home]     [Apache Users]     [PHP on Windows]     [Kernel Newbies]     [PHP Install]     [PHP Classes]     [Pear]     [Postgresql]     [Postgresql PHP]     [PHP on Windows]     [PHP Database Programming]     [PHP SOAP]

  Powered by Linux