The example you gave with the value of +sip.instance between double quotes is valid, I have seen it many times like this.

On the other hand, other parameters of Contact header can usually be without quoted value, like:

Contact:<sip:user@domain>;reg-id=1

Both types can be in the header at the same time.

Is the value with double quotes making troubles somewhere?

Cheers,
Daniel

On 08.10.19 16:38, Duarte Rocha wrote:

Thank you for your answer.

The green example was just for testing. My real example is similar to yellow on a header parameter since i have a client sending me the value of sip.instance between quotes and i can't identify the value when it is quoted. 

Example : Contact:<sip:user@domain>;+sip.instance="<urn:uid:00000000000000>"

It seems to me be a valid sip parameter, but if it's not i'll warn the client

A terça, 8/10/2019, 15:29, Daniel-Constantin Mierla <miconda@gmail.com> escreveu:

Hello,

the values of parameters can be quoted or unquoted, depending on the format (e.g., URI parameters have to be unquoted). If they start with a quote, then it has to be terminated with the same quote and then the value is in between the quotes. The {param} transformation is using the same parser as for parameters in SIP message.

Now, I am not sure if quote is allowed in an unquoted parameters like green, the grammar in SIP specs has to be checked...

Cheers,
Daniel

On 08.10.19 16:09, Duarte Rocha wrote:

Hi David.

I want to ble able to print : yellow = "twelve".

In the green example the "" are printed, but on the yellow example it is not.

Cheers

A terça, 8/10/2019, 12:36, Duarte Rocha <duarterocha91@gmail.com> escreveu:

Greetings,

 

I'm testing some parameters actions and i found a weird behaviour

 

This is my code for the test :

 

$var(Parameter_List) = "blue=twelve;green=twe\"lve\";yellow=\"twelve\"";

xerr("Parameter List = $var(Parameter_List)");

xerr("Value of Parameter blue = $(var(Parameter_List){param.value,blue})");

xerr("Value of Parameter green = $(var(Parameter_List){param.value,green})");

xerr("Value of Parameter yellow = $(var(Parameter_List){param.value,yellow})");

 

 

The printed logs are the following :

ERROR: <script>: Parameter List = blue=twelve;green=twe"lve";yellow="twelve"

ERROR: <script>: Value of Parameter blue = twelve

ERROR: <script>: Value of Parameter green = twe"lve"

ERROR: <script>: Value of Parameter yellow = twelve

 

I have also tried setting the string as :

$var(Parameter_List) = 'blue=twelve;green=twe"lve";yellow="twelve"'; 

But the results were similar

The "" are not recognized in some scenarios. Is this intended behaviour or should i submit it as a bug?

 

 

Best Regards,

 

Duarte Rocha

 

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-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat

-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat