[perl #116893] [BUG] An alternation of literal strings doesn't backtrack properly in Rakudo

[Will Coleda via RT]

On Thu Feb 21 08:57:24 2013, masak wrote:
> <TimToady> nr: say "abcde" ~~ / | @(<a b bc cde>)+»/
> <p6eval> niecza v24-23-g0520c7c: OUTPUT«｢abcde｣␤␤»
> <p6eval> ..rakudo 9c59a1: OUTPUT«｢cde｣␤␤»
> <TimToady> wow
> <masak> what's that » doing there?
> <masak> word boundary, right?
> <TimToady> nod
> <TimToady> forcing backtracking
> <TimToady> which n does but r doesn't for the literals
> <masak> so... Niecza is right on the first one?
> <TimToady> yes, because nothing committed to the current LTM inside the @
> * masak submits rakudobug

2016, behavior unchanged:

10:11 < [Coke]> m: say "abcde" ~~ / | @(<a b bc cde>)+»/
10:11 <+camelia> rakudo-moar 1e5df4: OUTPUT«｢cde｣␤»

-- 
Will "Coke" Coleda