[OpenSIPS-Users] Regex to test variable

[Mark Farmer]

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.
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