[Freeswitch-users] Variable manipulation in the dialplan

[Anthony Minessale]

play with it from the cli

freeswitch>global_setvar foo=12345
API CALL [global_setvar(foo=12345)] output:
+OK
freeswitch> eval ${foo:2:1}
API CALL [eval(${foo:2:1})] output:
3
freeswitch> eval ${foo:2:3}
API CALL [eval(${foo:2:3})] output:
345
freeswitch> eval ${foo:3:2}
API CALL [eval(${foo:3:2})] output:
45
freeswitch> eval ${foo:-4:4}
API CALL [eval(${foo:-4:4})] output:
2345

On Tue, Jun 23, 2009 at 8:33 AM, Cavalera Claudio Luigi <
Claudio.Cavalera at italtel.it> wrote:

> Hello,
> I once found in the wiki a page explaining how to "substring" a channel
> variable,
> something like
> <@[intra]lanman> 12345 would be 345 if you do ${var:2}
>
> I can't find that page on the wiki anymore, any hint on were it could
> be? :-)
>
> Also do you think it could be useful to extend this functionality with a
> sort of Java indexOf() to extract a specific substring from a variable
> (but without knowing its size like in the example above)?
>
> Regards,
> Claudio
>
>
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-- 
Anthony Minessale II

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