On 8/31/22 09:25, Antony Stone wrote:
If I simply do
Tracker="${CDR(uniqueid)}";
it works as required.
It's just not the sort of syntax I've seen in any other language, and it feels
(to me) weird.
^^^ Yup! This is what I was suggesting in my last email. Just add quotes.
Think of it this way. Compared to other languages.. If you want to do
math, do math, if you want to use a string, use a string. I think it
follows the convention quite nicely, other than the weird behavior of
AEL of when you use an assignment of mixed text-math without quoting.
c
----
a = 1 + 1; /* correct */
b = "foo"; /* correct */
c = 1 + "bar"; /* syntax error */
perl
----
$a = 1 + 1; # correct
$b = "foo"; # correct
$c = 1 + "bar"; # syntax error
php
----
$a = 1 + 1;
$b = "foo";
$c = 1 + "bar"; # treats "bar" as 0, results in a runtime warning, final
value: $c=1
python
----
a = 1 + 1 # correct
b = "foo" # correct
c = 1 + "bar" # runtime error
So... the only weird thing here... is AEL 'works' with "<number>
<operand> <string>", and does something unexpected with it
Maybe the documentation: "NOTE: AEL wraps the right hand side of an assignment
with $[ ] to allow expressions to be used If this is unwanted, you can protect
the right hand side from being wrapped by using the Set() application." could
be enhanced to point out that quote marks can overcome the problem as well?
https://wiki.asterisk.org/wiki/display/AST/AEL+Variables
Antony.
Thanks for the suggestion.. I'll update the documentation and add some
examples.
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