Why does my RegExp match in RegExr, but not in Python?
6338
What is the difference between re.search and re.match?
24395
Matching a space in regex
9141
Why does my regular expression work in X but not in Y?
92806
Difference between matches() and find() in Java Regex
10432
How can I match overlapping strings with regex?
38694
Ruby 1.9: Regular Expressions with unknown input encoding
45334
How can I debug a regular expression in Python?
960
Unexpected behavior of rule matching a pattern
43475
How can I concatenate regex literals in JavaScript?
84913
How to "inverse match" with regex?
1805
Do Python regexes support something like Perl's \G?
3965
What special characters must be escaped in regular expressions?
4233
JavaScript + Unicode regexes
73024
PHP regex delimiters, / vs. | vs. {} , what are the differences?
125564
PHP regex delimiter, what's the point?
113601
What is the difference between .*? and .* regular expressions?
24295
Issue with regex backreference in Python