Why does this string match even though parts of it are in negative lookahead...

Same occurence of 1 and 2, but with length < 1.000.000...

extract text from html tags using regex...

use regular expression to replace extra quote inside json...

Regular expression to find lvalue and rvalue in source code (ignore == )...

Find specific text between words using Regex...

Show zeroes in a Regular Expression decimal...

Regular Expression To Extract Names...

Remove segments and replaces in url with regex...

Regular expression for validate multiple mobile number...

Match blocks of numbers with regular expression...

Deriving a regular grammar for the language recognised by the Finite Automata...

Left-Linear and Right-Linear Grammars...

Why does the following Pattern not work for all OS versions?...

Shortcodes/BBcode regular expression...

Regular expressions for 301 redirect...

DFA and Regular Expression...

Regular expression to filter special characters not working...

python - How to remove some tags...

RegEx for multiple newlines with different tags...

Context free language (Pumping lemma a^n b^m c^min(n,m))...

How to convert to Chomsky Normal Form quickly?...

How to convert language L into regular expression...

recognise max type of formal language...

Converting regex to a regular grammar/right-linear grammar...

How to find logical 'or' operator (||) from a sequence using Regex Python...

1 or 2 right hand side variable in Context free language...

How to exclude all subsequences of string from a long string in Java...

Regular expression to form words with exactly 4 a's or 5 b's...

Regular expression for less than and more than (not the symbols!)...