[asterisk-bugs] [JIRA] (ASTERISK-29486) Hint-like extension value lookup function without device state

[George Joseph (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-29486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=255782#comment-255782 ] 

George Joseph commented on ASTERISK-29486:
------------------------------------------

bq. but the other aspect of being able to retrieve what is actually an arbitrary priority is missing here, since it locks into the GoSub framework of returning something at priority 1

Not understanding.  Gosub/CALL_SUB will start at any priority you want and stop when it's hits the Return.
{code}
[customer-groups]
exten => _55XXXXX,42,Return(1)
exten => _6[23]3NXXX,1,Return(17)
exten => _652[6-9]XXX,1(somelabel),Return(${EXTEN:-4:1})
exten => _652[6-9]XXX,42(someotherlabel),Return(${EXTEN:-4:1})

[default]
same = n,DoSomething(${CALL_SUB(customer-groups,${CALLERID(num)},42))})
same = n,DoSomething(${CALL_SUB(customer-groups,${CALLERID(num)},someotherlabel))})

{code}

bq.  As LOOKUP would be just a function, wouldn't that also be equally accessible from Lua/AEL?
No because LOOKUP returns a simple value and doesn't actually execute anything.

I do get your points about performance though.
Let me think more and I'll make comments on the review.




> Hint-like extension value lookup function without device state
> --------------------------------------------------------------
>
>                 Key: ASTERISK-29486
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-29486
>             Project: Asterisk
>          Issue Type: New Feature
>      Security Level: None
>          Components: Functions/NewFeature
>    Affects Versions: 18.4.0
>            Reporter: N A
>            Assignee: N A
>
> This is a new function that works like the HINT function, only a separate priority is used so that device state overhead is not added. This can provide a mechanism for a fast, efficient, and clean extension value lookup in the dialplan using native core extension pattern matching capabilities to retrieve extension values, including substituting variables.



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