This is able to match both side of an equation.

use this to get value of any side of an equation. You can combine this with https://regex101.com/r/fH5kJ1/1

check if two operator follow and if two [xX] follow. You can combine this with https://regex101.com/r/qT7fO0/1

easy syntax check for equation

mail.google.com google.it www.mega.co/ http://www.google.it mail.google.uk/login/auth.html ftp://docs.python.org:54/login/...

if(a)

Must have at leat one number, at leat one capital letter, at least one lower case letter. Also you can have special characters !.@$%&+=-? if you want for extra security. This is not manditory. Change (?=.[a-z\!.@$%&*+=\-\?]) to (?=.[\!.@$%&+=\-\_?]) to make thees special characters manditory. No ...

Mathces unnecessary spaces in computer programs.

Is a simple regex for compare tel number of El Salvador (not use +503 or iquals)

This one removes ALL attributes if "style" is found. See my other expression to only remove the style.

Parses email, also distorted ones, and convert them back to the real ones. It can recognize at maximum two dots notations, just add '.\5' at the end of the substitution string. Inspirated by dislick's work: https://regex101.com/r/wB7xJ7/1

Chinese salary input