[Fwd: Re: [Users] Recursive routes and retcode]

[Klaus Darilion]

forgotten to CC the list.

regards
klaus

---------------------------- Original Message ----------------------------
Subject: Re: [Users] Recursive routes and retcode
From:    "Klaus Darilion" <klaus.mailinglists at pernau.at>
Date:    Mon, April 10, 2006 23:36
To:      "Andreas Granig" <andreas.granig at inode.info>
--------------------------------------------------------------------------

Hi Andy!

What is your goal? Do you want to strip the extension till you get the
"kopfnummer" (sorry, I do not know the english term)?

Maybe a special lookup function might be useful which does some kind of
longest match matching (like the SQl query in the LCR module).

I know other which solve this problem by using a private ENUM tree with
wildcard NAPTRs for the extensions which point to the "main URI".

regards
klaus


On Mon, April 10, 2006 18:44, Andreas Granig said:
> Hi,
>
> I'd like to recursively strip off digits from the tail of a username (a
numeric number in fact) and do a lookup in usrloc until an aor is found
or the number underruns a lower bound, like:
>
> route[2] {
>    if(lookup("location")) return(2);
>    if(!uri =~ "^sip:[0-9]{6}[0-9]*@") return(3);
>    strip_tail(1);
>    route(2);
> }
>
> route[3] {
>    # check if numeric, then:
>    route(2);
>    if(retcode==1) {...}
>    else if(retcode==2) {...}
>    else if(retcode == 3) {...}
>    # ...
> }
>
> The thing is that it obviously doesn't work (retcode is 1 as soon as one
recursion happens) because I can't tell the recursive call to properly
return the retcode like "return(route(2))" or "return($?)" or something
like that. Any other ideas except using flags or is that the only way to
go?
>
> Thanks,
> Andy
>
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