asterisk users - Feb 2009 - escaping regular expression

Hi!

I am going nuts using REGEXP. I just want to verify if a variable 
contains a valid +E164 phone number.

These, the the pattern is ^\+[0-9]+

First I tried:

   Set(pattern=^\+[0-9]+);
   if (${REGEX("${pattern}" ${${var}})})

but that does not work, the backslash is removed, as seen in the log file:

   func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345 
<http://www.adaanumber.com/>)

So, meanwhile I tried to escape the backslash. I tried:
   Set(pattern=^\\+[0-9]+);
   Set(pattern=^\\\+[0-9]+);
   Set(pattern=^\\\\+[0-9]+);

But always the same result:

   func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345)

How can I solve this problem?

Thanks
Klaus

2009/2/4 Klaus Darilion <klaus.mailinglists at pernau.at>
> Hi!
>
> I am going nuts using REGEXP. I just want to verify if a variable
> contains a valid +E164 phone number.
>
> These, the the pattern is ^\+[0-9]+
>
> First I tried:
>
>   Set(pattern=^\+[0-9]+);
>   if (${REGEX("${pattern}" ${${var}})})
>
> but that does not work, the backslash is removed, as seen in the log file:
>
>   func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345
> <http://www.adaanumber.com/>)
>
> So, meanwhile I tried to escape the backslash. I tried:
>   Set(pattern=^\\+[0-9]+);
>   Set(pattern=^\\\+[0-9]+);
>   Set(pattern=^\\\\+[0-9]+);
>
> But always the same result:
>
>   func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345)
>
> How can I solve this problem?
>
Try something like... pattern=^[+]\{1\}[0-9]+

d
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D Tucny schrieb:
> 2009/2/4 Klaus Darilion <klaus.mailinglists at pernau.at 
> <mailto:klaus.mailinglists at pernau.at>>
> 
>     Hi!
> 
>     I am going nuts using REGEXP. I just want to verify if a variable
>     contains a valid +E164 phone number.
> 
>     These, the the pattern is ^\+[0-9]+
> 
>     First I tried:
> 
>       Set(pattern=^\+[0-9]+);
>       if (${REGEX("${pattern}" ${${var}})})
> 
>     but that does not work, the backslash is removed, as seen in the log
>     file:
> 
>       func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345
>     <http://www.adaanumber.com/>)
> 
>     So, meanwhile I tried to escape the backslash. I tried:
>       Set(pattern=^\\+[0-9]+);
>       Set(pattern=^\\\+[0-9]+);
>       Set(pattern=^\\\\+[0-9]+);
> 
>     But always the same result:
> 
>       func_strings.c: FUNCTION REGEX (^+[0-9]+)(+4312345)
> 
>     How can I solve this problem?
> 
> 
> Try something like... pattern=^[+]\{1\}[0-9]+
Are you sure? The \ should be in front of the +

klaus