In python regex r'\W' vs r'\W+' vs r'\W*', can someone explain this?
1388
Learning Regular Expressions
135638
The difference between \e and ^[
83225
Difference between single and double square brackets in Bash
39457
Why is \[ ... \] preferable to $$ ... $$?
68011
(![]+[])[+[]]... Explain why this works
153593
When and why did ^ and $ take on their meanings of "beginning of line" and "end of line?"
105507
How to make this curly 'R' (ℛ)?
48894
What does "\" mean in math
145575
Why are text format commands used inside braces?
137026
What's the advantage of having multi-line & single-line string literals in python?
146315
'^M' character at end of lines
37456
Does -* have any special meaning in regular expression?
27902
What is the purpose of the single underscore "_" variable in Python?
102066
How can I match a pipe character followed by whitespace and another pipe?
12963
What is a non-capturing group in regular expressions?
138286
What do two left-angle brackets "<<" mean in C#?
39459
Why is '' > 0 True in Python 2?