[OpenSIPS-Users] How to prevent error when using invalid index on s.select

[Brett Nemeroff]

Bogdan,
I believe the problem is in the assignment of the value to a variable.
ie:
$avp(s:someval) = $(var(s){s.select,$var(i),,})\n");


Basically the r-value is non-existant. In other languages, I'd
typically check the value with an If (or enclose in an eval) before
performing the assignment. What's the right way in the config syntax?

Thanks,
Brett

On Tue, Apr 13, 2010 at 5:18 AM, Bogdan-Andrei Iancu
<bogdan at voice-system.ro> wrote:
> Hi Brett,
>
> the following script :
>    $var(s)="1,2,3,4";
>    $var(i)= 4;
>    xlog("----------$(var(s){s.select,$var(i),,})\n");
>    xlog("----------\n");
>    $var(x) = $(var(s){s.select,$var(i),,});
>
> does not produce the error you mentioned...
>
> maybe you have something different ?
>
> Regards,
> Bogdan
>
> Brett Nemeroff wrote:
>> Hello List,
>> I'm using s.select to iterate over a list of values. I don't know how
>> big the list is so I'm going to hit the end and it's going to error
>> out..
>>
>> OpenSIPs produces an ERROR on this and I'd like to suppress this
>> error. I've typically seen this performed in an eval or perhaps by
>> knowing ahead of time how big the array is (which I don't know).
>>
>> So is there a right way to do this to not get the error?
>>
>> Here's what I'm getting:
>> Apr 12 20:16:37 domU-XX-XX-XX-XX-XX-XX /usr/local/sbin/opensips[2611]:
>> ERROR:core:eval_elem: invalid string operands
>> Apr 12 20:16:37 domU-XX-XX-XX-XX-XX-XX /usr/local/sbin/opensips[2611]:
>> ERROR:core:do_assign: no value in right expression
>> Apr 12 20:16:37 domU-XX-XX-XX-XX-XX-XX /usr/local/sbin/opensips[2611]:
>> ERROR:core:do_assign: error at line: 514
>>
>> Thanks,
>> Brett
>>
>> _______________________________________________
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>>
>>
>
>
> --
> Bogdan-Andrei Iancu
> www.voice-system.ro
>
>
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