In Operators§
See primary documentation in context for infix ^ff
sub infix:<^ff>(Mu $a, Mu $b)
Works like ff, except it does not return True
for items matching the start condition (including items also matching the stop condition).
A comparison:
my @list = <X A B C Y>; say $_ if /A/ ff /C/ for @list; # OUTPUT: «ABC» say $_ if /A/ ^ff /C/ for @list; # OUTPUT: «BC»
The sed-like version can be found in ^fff
.
This operator cannot be overloaded, as it's handled specially by the compiler.