[OpenSIPS-Users] Regex to test variable

[Mark Farmer]

OK some progress

I'm using the s.select transformation which returns the last field
correctly:

$avp(audio_stream) = $(rb{sdp.line,m}{s.select,-1, });
                xlog("CUSTOM_LOG: Audio stream is $avp(audio_stream)\n");
                if ($avp(audio_stream) == "101") {

CUSTOM_LOG: Audio stream is 101

But if ($avp(audio_stream) == "101") still doesn't match :(

What am I doing wrong here?

Thanks
Mark.


On Wed, 25 Nov 2020 at 16:09, Mark Farmer <farmorg at gmail.com> wrote:

> Thanks for the reply!
>
> I've changed my regex to
>
> if ($avp(audio_stream) =~ "^m=audio.*101\r\n")
>
> Tried with and without escaping the equals sign but still not matching.
> Also changed to using an avp.
>
> Mark.
>
>
> On Wed, 25 Nov 2020 at 15:54, M S <medeanwz at gmail.com> wrote:
>
>> something with your regex. each header has a \r\n in the end too, also
>> I'm not sure you need \ before =
>>
>> On Wed, Nov 25, 2020 at 4:26 PM Mark Farmer <farmorg at gmail.com> wrote:
>>
>>> Hi everyone
>>>
>>> I am trying to detect a string using sdp.line,m and a regex pattern but
>>> it is failing to match.
>>> I am trying to match the 101 at the end of the m=audio line:
>>>
>>> m=audio 25224 RTP/AVP 8 18 101
>>>
>>> This is my code:
>>>
>>> if (is_method("INVITE") && has_body_part("application/sdp")) {
>>>                 $var(audio_stream) = $(rb{sdp.line,m});
>>>                 xlog("CUSTOM_LOG: Audio stream is $var(audio_stream)\n");
>>>                 if ($var(audio_stream) =~ "^m\=audio.*101$") {
>>>                         $var(dtmf_compat)=1;
>>>                 } else $var(dtmf_compat)=0;
>>>                 if ($var(dtmf_compat)=0) {
>>>                         xlog("CUSTOM_LOG: Would do something else now");
>>>                 }
>>>                 xlog("CUSTOM_LOG: DTMF validity = $var(dtmf_compat)");
>>>         }
>>>
>>> I can see that var(audio_stream) is being set correctly:
>>> CUSTOM_LOG: Audio stream is m=audio 25914 RTP/AVP 8 18 101
>>>
>>> But it seems not to match:
>>> CUSTOM_LOG: DTMF validity = 0
>>>
>>> Is anyone able to help me solve this please?
>>>
>>> Many thanks!
>>> Mark.
>>>
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
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>>>
>> _______________________________________________
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>>
>
>
> --
> Mark Farmer
> farmorg at gmail.com
>


-- 
Mark Farmer
farmorg at gmail.com
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