2018
2013
Regular Expressions Cheat Sheet by DaveChild - Cheatography.com
by sylvainulg
? where does my regexp mismatch ?
die "wrong pattern on $`//$+//$'";
2011
perlfaq6 - what is /o really for ?
by sylvainulg (via)
The /o option for regular expressions (documented in perlop and perlreref) tells Perl to compile the regular expression only once.
This is only useful when the pattern contains a variable.
Perls 5.6 and later handle this automatically if the pattern does not change.
2010
2009
2006
2005
2004
Five Habits for Successful Regular Expressions
by roberto & 3 others
Regular expressions are hard to write, hard to read, and hard to maintain.
1
(13 marks)
