Metacharacters and metasymbols

    

while(<DATA>){
    print if /[ABC]\D/
}
__DATA__
    Steve 
    Mary
    Abort
    Jack

1.	Meta-Character ASCII Values
2.	Meta-Characters listing
3.	Metacharacters for Single Characters
4.	Metacharacters that Turn off Greediness
5.	.* special-character combination tries to match as much as possible
6.	The dot metacharacter
7.	The dot metacharacter and the zero or more quantifier
8.	Some Regular Expression Metacharacters

Metacharacters and metasymbols : Metacharacters « Regular Expression « Perl