Hi Bogdan,

Thank you for the clarification. I was suspecting that.

That means I cannot simply drop-in replace calls to xlog with calls to a route 
and passing the log message as an argument.

What do you think about adding a core function eval() that evaluates a string 
(possibly recursively)?


Best regards,
Jan

From: Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
Sent: den 2 december 2016 09:57
To: OpenSIPS users mailling list <users@lists.opensips.org>; Jan Blom 
<jan.b...@peopleinteractive.se>
Subject: Re: [OpenSIPS-Users] Problem using xlog with variables

Hi Jan,

You can print via variables strings containing again references to other 
variables - there is only one level of variable evaluation.

You should do it:
    $var(msg) = $rm + "received on " + $var(hostname);
    xlog("L_INFO", "$var(msg)");

Regards,


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com
On 01.12.2016 23:36, Jan Blom wrote:
Hello all,

I was going to centralized logging functions to a route block that would be 
called from various place in script, using $param(n) to access the log message. 
I got stuck on what I guess is variable evaluation. Simplified this is the 
problem:

The normal (working) way:
xlog("L_INFO", "$rm received on $var(hostname)");
Output: INVITE received on proxy-stage-01

What I was trying:
$var(msg) = "$rm received on $var(hostname)";
xlog("L_INFO", "$var(msg)");
Output: $rm received on $var(hostname)

In the latter case the variables are not evaluated the way I was expecting.

Is there a better way to achieve the output of the first example by using a 
variable containing the message to xlog?
I am testing this on OpenSIPS 2.1.


Best regards,
Jan Blom




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