Shouldn't start a sentence with a period

    


$line = ".Hello!";

if ($line =~ m/\A\./) {
    print "Shouldn't start a sentence with a period!";
}

1.	The ^ and $ Pattern Anchors
2.	Check beginning
3.	Check beginning and end
4.	Check end
5.	End of line anchor
6.	A negative look ahead
7.	A negative look behind
8.	A positive look ahead
9.	A positive look behind
10.	Anchoring Metacharacters
11.	Beginning of line anchor
12.	Clustering and anchors
13.	Beginning and end of word anchors
14.	Get begin of the line
15.	Searching from the beginning and the end
16.	Word-Boundary Pattern Anchors

Shouldn't start a sentence with a period : Anchors « Regular Expression « Perl