Python regex strange behavior
63928
regex error - nothing to repeat
124258
How do you match one of two words in a regular expression?
117465
Python extract pattern matches
78395
Checking whole string with a regex
88430
Using RegEx to balance match parenthesis
148063
Python regex - why does end of string ($ and \Z) not work with group expressions?
50014
Problems with regex in grep
1685
Why does this Java regex cause "illegal escape character" errors?
9011
R regular expressions: unexpected behavior of "[:digit:]"
73024
PHP regex delimiters, / vs. | vs. {} , what are the differences?
49148
grep strange behaviour with single letter words
2360
My regex is matching too much. How do I make it stop?
4233
JavaScript + Unicode regexes
57153
String.split() *not* on regular expression?
37188
Difference between '.' , '?' and '*' in regular expressions?
64366
Matching an optional substring in a regex
128484
How to filter string for unwanted characters using regex?