Regular Expressions 101

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/
([^ ]+)*.(\w{0,2}).([0-9]+)*.(.*.)
/
1st Capturing Group
([^ ]+)*
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
A repeated capturing group will only capture the last iteration. Put a capturing group around the repeated group to capture all iterations or use a non-capturing group instead if you're not interested in the data
Match a single character not present in the list below
[^ ]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
. matches any character (except for line terminators)
2nd Capturing Group
(\w{0,2})
\w
matches any word character (equivalent to [a-zA-Z0-9_])
{0,2} matches the previous token between 0 and 2 times, as many times as possible, giving back as needed (greedy)
. matches any character (except for line terminators)
3rd Capturing Group
([0-9]+)*
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
A repeated capturing group will only capture the last iteration. Put a capturing group around the repeated group to capture all iterations or use a non-capturing group instead if you're not interested in the data
Match a single character present in the list below
[0-9]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
0-9 matches a single character in the range between 0 (index 48) and 9 (index 57) (case sensitive)
. matches any character (except for line terminators)
4th Capturing Group
(.*.)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
. matches any character (except for line terminators)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/

Test String

Substitution

Processing...