On Mon, Feb 20, 2006 at 10:14:55AM -0700, Douglas Garstang wrote:
> It was trying to perform looping in the dialplan that made me seriously look
> at AGI. Gee, I wonder what's easier.
>
> This:
> exten => s,1,Set(COUNT=0)
> exten => s,2,Goto(loop,1);this is where we start the loop
> exten => loop,1,GotoIf($[${COUNT} > 5]?next,1);exit if more than 5 esle start
> again
> exten => loop,2,Set(COUNT=$[${COUNT} + 1])
> exten => loop,3,Goto(1)
> exten => next,1,Noop(${COUNT})
>
> or this...
> loop = 0
> while loop < 5:
> do-something
It's the "do something" that will become more complicated. Not to
mention the overhead (specifically latency) of firing an extra interpeter
on every call. And chances are you'll end up with 3 or 4 such AGIs per
call with such an attitiude.
> loop += 1
>
> I really wasn't enthused about having to look at dialplan code months later
> and try and work out what I did earlier.
> Nasty!
Note that I wasn't using some newer 1.2 syntax. With it it could be:
> exten => s,1,Set(COUNT=0)
> exten => s,n,Goto(loop,1);this is where we start the loop
>
> exten => loop,1,GotoIf($[${COUNT} > 5] ? next,1)
> exten => loop,n,Set(COUNT=$[${COUNT} + 1])
> exten => loop,n,Goto(1)
>
> exten => next,1,Noop(${COUNT})
Not to mention AEL, which I have not began to explore.
>
>
> -----Original Message-----
> From: Tzafrir Cohen [mailto:[EMAIL PROTECTED]
> Sent: Monday, February 20, 2006 9:14 AM
> To: [email protected]
> Subject: Re: [Asterisk-Users] Loops and Variables
>
>
> On Mon, Feb 20, 2006 at 08:56:41AM -0500, C F wrote:
> > I usually do the same for IVRs, but I always make sure not to use
> > itself as the increment, and I use a tempvar instead, like this:
>
> Why?
>
> > exten => s,1,Set(COUNT=0)
> > exten => s,2,Goto(100);this is where we start the loop
> > exten => s,100,Set(TCOUNT=${COUNT})
> > exten => s,101,Noop(${COUNT})
> > exten => s,102,GotoIf($[${COUNT} > 5]?150);exit if more than 5 esle start
> > again
> > exten => s,103,Set(COUNT=$[{TCOUNT} + 1])
> > exten => s,104,Goto(100)
> > exten => s,150,Noop(${COUNT})
>
> Why not simply:
>
> > exten => s,1,Set(COUNT=0)
> > exten => s,2,Goto(100);this is where we start the loop
> > exten => s,100,GotoIf($[${COUNT} > 5]?150);exit if more than 5 esle start
> > again
> > exten => s,101,Set(COUNT=$[${COUNT} + 1])
> > exten => s,102,Goto(100)
> > exten => s,150,Noop(${COUNT})
>
> Alternatively:
>
> > exten => s,1,Set(COUNT=0)
> > exten => s,2,Goto(loop,1);this is where we start the loop
> > exten => loop,1,GotoIf($[${COUNT} > 5]?next,1);exit if more than 5 esle
> > start again
> > exten => loop,2,Set(COUNT=$[${COUNT} + 1])
> > exten => loop,3,Goto(1)
> > exten => next,1,Noop(${COUNT})
>
> --
> Tzafrir Cohen | [EMAIL PROTECTED] | VIM is
> http://tzafrir.org.il | | a Mutt's
> [EMAIL PROTECTED] | | best
> ICQ# 16849755 | | friend
>
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--
Tzafrir Cohen | [EMAIL PROTECTED] | VIM is
http://tzafrir.org.il | | a Mutt's
[EMAIL PROTECTED] | | best
ICQ# 16849755 | | friend
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