Re: [asterisk-users] Difference between Application Set and Function SET?

[Richard Mudgett]

On Fri, Jun 16, 2017 at 1:43 PM, Jonathan H  wrote:

> OK, thanks. That sort of makes sense. Is it case sensitive?
>

Is what case sensitive?  Function names are case sensitive.  Application
names have historically been not case sensitive.


>
> Bonus quickie while I'm here (not worth own thread) - Asterisklint
> complains that:
>
> H_PAT_NON_CANONICAL: pattern '_#' is not in the canonical form '#'
>
> for the line
>
> exten => _#,1,Goto(s,1)
>
> I'm sure I read somewhere it should be _#.
>
> Am I imagining it?!
>

You are declaring an extension line with a pattern but the pattern only has
literal characters so it really isn't a pattern.  It takes more CPU to match
than the non-pattern form and is more likely an error.

Richard

[1] https://wiki.asterisk.org/wiki/display/AST/Pattern+Matching
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Re: [asterisk-users] Difference between Application Set and Function SET?

[Jonathan H]

OK, thanks. That sort of makes sense. Is it case sensitive?

Bonus quickie while I'm here (not worth own thread) - Asterisklint
complains that:

H_PAT_NON_CANONICAL: pattern '_#' is not in the canonical form '#'

for the line

exten => _#,1,Goto(s,1)

I'm sure I read somewhere it should be _#.

Am I imagining it?!

On 16 June 2017 at 19:17, Richard Kenner  wrote:
>> It was only when I ran AsteriskLint over my dialplan that I noticed this:
>>
>> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Application_Set
>> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_SET
>>
>> Hmmm, they both seem to do the same thing. Or don't they?
>
> In some sense they do, but one's an application, meaning that it's
> like a subprogram in a programming-language sense, and the other is a
> function, which returns a value.
>
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>
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Re: [asterisk-users] Difference between Application Set and Function SET?

[Richard Kenner]

> It was only when I ran AsteriskLint over my dialplan that I noticed this:
> 
> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Application_Set
> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_SET
> 
> Hmmm, they both seem to do the same thing. Or don't they?

In some sense they do, but one's an application, meaning that it's
like a subprogram in a programming-language sense, and the other is a
function, which returns a value.

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Re: [asterisk-users] Difference between Application Set and Function SET?

[Richard Mudgett]

On Fri, Jun 16, 2017 at 12:41 PM, Jonathan H  wrote:

> It was only when I ran AsteriskLint over my dialplan that I noticed this:
>
> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Application_Set
> https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_SET
>
> Hmmm, they both seem to do the same thing. Or don't they?
>

Yes they both do the same thing which is set a channel variable.  However,
when they can be invoked is different.  The Set application can only be
invoked in dialplan.  The SET function can be invoked anywhere a function
can be invoked and not just in dialplan.

Richard
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[asterisk-users] Difference between Application Set and Function SET?

[Jonathan H]

It was only when I ran AsteriskLint over my dialplan that I noticed this:

https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Application_Set
https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_SET

Hmmm, they both seem to do the same thing. Or don't they?

Confused!

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