[Freeswitch-users] empty var expression

[Michael Collins]

Where is this variable getting or losing the "undef" value? Also, add this
line to info and see what gets printed:

<action application="log" data="WARNING $var contains '${var}'"/>

That will print it out in purple letters to make it easier to see. FWIW, I
tried this with various permutations of 'undefined' channel vars and
expression="^$" always worked for me.

-MC

On Mon, Jan 17, 2011 at 3:55 PM, Madovsky <infos at madovsky.org> wrote:

>  yes, I can see UNDEF
>
> ----- Original Message -----
> *From:* Michael Collins <msc at freeswitch.org>
> *To:* FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> *Sent:* Monday, January 17, 2011 2:34 PM
> *Subject:* Re: [Freeswitch-users] empty var expression
>
> Is the var showing up as "UNDEF" when you send the call to the info app?
> -MC
>
> On Fri, Jan 14, 2011 at 12:22 PM, Madovsky <infos at madovsky.org> wrote:
>
>>  I tried this for an var marked as "UNDEF" in log
>>
>> <condition field="${var}" expression="^UNDEF$" break="never">
>> <condition field="${var}" expression="UNDEF" break="never">
>> <condition field="${var}" expression="undef" break="never">
>> <condition field="${var}" expression="^undef$" break="never">
>> <condition field="${var}" expression="" break="never">
>> <condition field="${var}" expression="^$" break="never">
>> <condition field="${var}" expression="[UNDEF]" break="never">
>> <condition field="${var}" expression="[]" break="never">
>>
>> without success.
>> which is the right expression for empty var please ?
>>
>> Thanks
>>
>>
>>
>>
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