If you've got the /s switch on though this'll happily match R\n\n\n, won't it?
Update: Oops, did wrong number of \n's. R\n\n does seem to pass this match, unless the code below is wrong..
#!/usr/bin/perl -w
use strict;
my @tests = (
"R\n\n", # Passes
"Roo", # Passes
"roo", # Fails
"Roo\n", # Fails
);
foreach (@tests) {
if (/^R..\z$/s) {
print "$_ passes\n";
} else {
print "$_ fails\n";
}
}
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