What does (?i) mean in a Python/pexpect regex?
1388
Learning Regular Expressions
154407
What does a "< <(...)" redirection mean?
61451
Interesting test of Javascript RegExp
64366
Matching an optional substring in a regex
24295
Issue with regex backreference in Python
105563
Posix Character Sets difference between [[:blank:]] and [[:space:]]?
135638
The difference between \e and ^[
50629
Confusing [...] List in Python: What is it?
25304
Uncertainty in parenthesis
155152
What does [&] mean before function?
152799
What does a b prefix before a python string mean?
87375
Difference between [0-9], [[:digit:]] and \d
85223
Regular expression for math operations with parentheses
147469
What does this syntax mean in Python?
91346
What's different between Python and Javascript regular expressions?
427
Why does a RegExp with global flag give wrong results?
141693
Why is this match pattern unreachable when using non-literal patterns?