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

This is able to match both side of an equation.

#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

Test a given string for phone number variations and extract th parts.

With this pattern possible select decimal that cantain comma or space

Start with two letters and followed by any number of Integers

regex for inline substitution w/ sed

When looking for day, Sunday should not be matched.

should start with letter follow by letters and numbers and (-) - zero or more can't start or finish with (-) can't have two or more consecutive (-) char