Thanks Anthony and Rupa, it’s clear now. J

Alex To

From: freeswitch-dev-bounces@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Anthony Minessale
Sent: Thursday, January 21, 2010 2:49 AM
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] Help on switch_channel_expand_variables(switch_channel_t *channel, const char *in)

say you had 2 vars test1=foo and test2=bar

it would turn the string "${test1} ${test2}" into "foo bar"
if the returned string does not return the exact pointer that was input, it must be freed.

On Wed, Jan 20, 2010 at 12:04 AM, Alex To <tonhudung@gmail.com> wrote:

Hi,

Could somebody shed some lights on how the mentioned method works ? What does it do exactly ? My best guess is it takes in a channel, a string and does something to the string (escape the string ? split the string ? or something like that? But why need a channel parameter?)

If there is already an explanation somewhere about this, please point it out for me or possibly just tell me what configuration should I make to trigger this method to be called. I can use debugger and figure it out by myself.

Any help would be greatly appreciated.

Thanks very much

Regards

Alex To

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