Why doesn't ignorecase flag (re.I) work in re.sub()
40699
Python re.sub with a flag does not replace all occurrences
93551
Regex: ignore case sensitivity
427
Why does a RegExp with global flag give wrong results?
16448
Is there an alternative to string.Replace that is case-insensitive?
104414
JavaScript regular expressions and sub-matches
45334
How can I debug a regular expression in Python?
63332
How can one represent a string pattern with prohibited substrings?
52449
Java RegEx meta character (.) and ordinary dot?
156703
If a question is in all-uppercase or all-lowercase, our quality filters should automatically reject it
9141
Why does my regular expression work in X but not in Y?
142860
Why is this regex allowing a caret?
61837
Can you make just part of a regex case-insensitive?
65892
Why String.replaceAll() don't work on this String?
8177
How do I get a substring of a string in Python?
80152
substitution rules excluding subscripted variables
88909
How do I make this preg_match case insensitive?
8974
Why is "out of range" not thrown for 'substring(startIndex, endIndex)'