is there a limit to a s/ ?

[ToddAndMargo]

Hi All,

I was thinking of doing a

$ p6 'my $x="a\nb\nc\nd\n"; say "$x\n"; $x ~~ s/ .*?c /c/; say "$x";'
a
b
c
d


c
d


Except the real deal will be across 1460 lines.  Am I pushing the
limits?

There are other ways of doing what I want.


Many thanks,
-T