Regular Expression to filter MAC ADDRESS-CodePudding

I am struck in writing regular expression for below format XXXXXXG0-XXXX-XXXX-1923-785FEABCD128 Above format is to filter MAC Address, so i need those MAC ADDRESS which has the characters defined in the above format and length

Is it possible to write regexp for above format? X characters can be alphanumeric. But other non X characters should be same.

ABCDEFG0-GHYD-SDER-1923-785FEABCD128 - Valid

ABCDEFH0-GHYD-SDER-0923-995FEABCD120 - Invalid

ABCDEFG0-GHYD-SDER-0923-995FEABCD120 - Invalid

CodePudding user response：

import re

patt = re.compile('[A-Z0-9]{6}G0-[A-Z0-9]{4}-[A-Z0-9]{4}-1923-785FEABCD128')

for test in ['ABCDEFG0-GHYD-SDER-1923-785FEABCD128', 'ABCDEFH0-GHYD-SDER-0923-995FEABCD120', 'ABCDEFG0-GHYD-SDER-0923-995FEABCD120']:
    if patt.match(test):
        print(f'{test} - Valid')
    else:
        print(f'{test} - Invalid')

prints

ABCDEFG0-GHYD-SDER-1923-785FEABCD128 - Valid
ABCDEFH0-GHYD-SDER-0923-995FEABCD120 - Invalid
ABCDEFG0-GHYD-SDER-0923-995FEABCD120 - Invalid

CodePudding user response：

^[a-zA-Z0-9]{6}G0-[a-zA-Z0-9]{4}-[a-zA-Z0-9]{4}-1923-785FEABCD128$

Explanation:

^ matches beginning of the string

[a-zA-Z0-9]{6} matches any alphanumeric character 6 times

G0- matches that text exactly

[a-zA-Z0-9]{4}- any alphanumeric character 4 times followed by a hyphen (appears twice)

1923-785FEABCD128 matches that text exactly

$ matches the end of the string