Does Bash-online-complier supports control structure as loops and conditional statment ?

the following command works correctly on my local Unix-based system, but it does not behave as expected in the online compiler!!

sed -E '/^([0-9]{4}\s*){4}$/{:a /(\*\*\*\*\s+){3}/b; s/((\*\*\*\*\s+)*)?[0-9]+/****/; ta} -' 

By using grouping, i found this solution

sed -E 's/([0-9]{4}\s){3}([0-9]{4})/**** **** **** \2/g'

Simple Solution

sed -E 's/[0-9]{4} /**** /g'

my answer

sed -E 's/\d{4} /**** /g'

Not a pretty solution but it works.

sed 's/\d\{4\} \d\{4\} \d\{4\}/**** **** ****/1'