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Regular expression: matching words between white space
user_6224246
0
•
asked Jul 19, 2017
6
1
4892
lookbehind
lookahead
whitespace
python
regex
stringr, str_extract: how to do positive lookbehind?
user_120440
0
•
asked Mar 4, 2016
10
3
5444
stringr
lookbehind
r
regex
What's the technical reason for "lookbehind assertion MUST be fixed length" in regex?
user_339038
0
•
asked Sep 26, 2010
65
5
35226
lookbehind
pcre
regex
Can you salvage my negative lookbehind example for commifying numbers?
brian_d_foy_2766176
0
•
asked Feb 24, 2010
18
3
1978
lookbehind
perl
regex
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