# New Ticket Created by "Carl Mäsak"
# Please include the string: [perl #125608]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=125608 >
<hoelzro> when determining the longest literal prefix for a rule, I
see that | alternation variants can extend the literal prefix. Does
the same apply for ||?
<masak> no.
<hoelzro> thanks masak
<jnthn> Yeah, hitting a sequential alternation marks the end of the
declarative prefix.
<jnthn> (just checked that's exactly what happens in the code)
<hoelzro> I saw the behavior, just checking to see that it made sense
spec-wise =)
<jnthn> aye, I believe so
<FROGGS> 'think so too fwiw
<TimToady> m: say 'food' ~~ / 'foo' | ('food' || 'doof')/
<camelia> rakudo-moar 533d1a: OUTPUT«｢foo｣»
<TimToady> hmm, STD would've picked 'food' there
<FROGGS> ò.ó
<TimToady> it counts the first part of the || as declarative
<jnthn> TimToady: Declarative but optional, I presume?
<TimToady> it counts the 'food' as part of LTM, iirc
<TimToady> on the assumption that most || are just error throws
<TimToady> m: say 'food' ~~ / 'foo' | ('food' <!> || 'doof')/
<camelia> rakudo-moar 533d1a: OUTPUT«｢foo｣»
<masak> TimToady: well, does that have any support in S05? otherwise
S05 should probably mention that...
<TimToady> masak: depends on how you read it...it says that LTM is
terminated by a ||
<TimToady> masak: actually, it's explicitly required at S05:2885
<TimToady> so this is a bug, by that
* masak submits rakudobug
<TimToady> m: say 'food' ~~ / 'foo' | ('food' <!> || die "Should die here")/
<camelia> rakudo-moar 533d1a: OUTPUT«｢foo｣»
