Excel Regex: match strings using regular expressions - Ablebits.com
What is the most weird regular expression line you have ever seen? - Quora
String functions: length, lc, uc, index, substr
pattern match on long string causes core dump · Issue #513 · Perl/perl5 · GitHub
Lecture 7: Perl pattern handling features. Pattern Matching Recall =~ is the pattern matching operator A first simple match example print “An methionine. - ppt download