# New Ticket Created by "Carl Mäsak"
# Please include the string: [perl #77576]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=77576 >
<masak> moritz_: nqp-rx has a debug/trace facility. I haven't tried it
much, but it seems to overlap slightly with your suggestion for
manually adding debug statements.
<moritz_> masak: I thought <?DEBUG(1)> worked. Right now I don't see any effect.
<moritz_> worked in rakudo, that is
<masak> I thought so too. sadly, I don't know any more about it.
<masak> pmichaud++ likely will, though.
<moritz_> <?DEBUG(1)> seems to work in grammars
<masak> huh. why would there be a difference inside or outside of a grammar?
<moritz_> rakudo: my token foo { <alpha> }; 'abcd' ~~ /<?DEBUG(1)> <&foo>+d/
<p6eval> rakudo f8e959: OUTPUT«
1283275173.029351 0/0 START foo
1283275173.029638 0/0 PASS foo at pos=1
1283275173.029860 1/0 START foo
1283275173.030061 1/0 PASS foo at pos=2
1283275173.030274 2/0 START foo
1283275173.030426 2/0 PASS foo at pos=3
1283275173.030636 3/0 START foo
1283275173…
<moritz_> seems to work outside too, but not for <alpha>
<masak> because <alpha> (along with the other predefined rules) is special-cased
<masak> probably should emit debug output, though.
* masak submits nqp-rxbug
