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

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

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

This is able to match both side of an equation.

Email address, most used cases

URL de playlist de salvavinilos.org

RegExp to match that user has entered at least 2-letters (including international letters) in a field

#define const_value 4 to const uint8_t const_value 4

const uint8_t T_SYN_3 23 to const uint8_t T_SYN_3 = 23;

Allow only two or more labels. Fix deprecated FQDN regexp not passing on test "dicas-l.com.br"

Useful for finding array error. Example: {'id':'1','name':'test',} Finds the ",}" from the example

Limpa os caracteres especiais e letras de um telefone imputado