On Nov 09, 2009 at 22:58, Juha Heinanen jh@tutpro.com wrote:
Andrei Pelinescu-Onciul writes:
$var(tmp) = $(ru{uri.param,alias}); xlog("L_INFO", "Alias param is <$var(tmp)>\n"); if ($var(tmp)) { xlog("L_INFO", "Alias param is <$var(tmp)>\n"); $du = $var(tmp);
^^^^^^^^ shouldn't it be $du = "sip:" + $var(tmp) ?andrei,
yes, it should have been like that. now handle_alias() takes care of it.
why does the test
if ($var(tmp)) {
fail to figure out that $var(tmp) has value?
You should use if ($var(tmp)!=""). if ($var(tmp)) works only for integers. If $var(tmp) is not integer and not a string of the form "1234", it will evaluate to 0 in an integer context. The if() it's an integer context (no boolean context in sr).
thanks for the explanation. i have to say though that as a normal programmer, i'm not used to such behavior.
in order to avoid programming mistakes like that, could it be possible to produce a error message if such a test is attempted, i.e., test on string valued pvar?
We could generate an error message, but only at runtime (because we don't know the type of $var(tmp) at script compile time).
Andrei