Regular Expressions 101

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/
([A-Z][\w\-]+ )?\((\D*\d{4}(: ?[\d\-]*)*(, \d{4}(: ?[\d\-]*)*)*;?)*\)
/
1st Capturing Group
([A-Z][\w\-]+ )?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
Match a single character present in the list below
[A-Z]
A-Z matches a single character in the range between A (index 65) and Z (index 90) (case sensitive)
Match a single character present in the list below
[\w\-]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
\w matches any word character (equivalent to [a-zA-Z0-9_])
\- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
\( matches the character ( with index 4010 (2816 or 508) literally (case sensitive)
2nd Capturing Group
(\D*\d{4}(: ?[\d\-]*)*(, \d{4}(: ?[\d\-]*)*)*;?)*
* 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
\D
matches any character that's not a digit (equivalent to [^0-9])
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\d
matches a digit (equivalent to [0-9])
{4} matches the previous token exactly 4 times
3rd Capturing Group
(: ?[\d\-]*)*
* 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
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
Match a single character present in the list below
[\d\-]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\d matches a digit (equivalent to [0-9])
\- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
4th Capturing Group
(, \d{4}(: ?[\d\-]*)*)*
* 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
,
matches the characters , literally (case sensitive)
\d
matches a digit (equivalent to [0-9])
{4} matches the previous token exactly 4 times
5th Capturing Group
(: ?[\d\-]*)*
* 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
: matches the character : with index 5810 (3A16 or 728) literally (case sensitive)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
Match a single character present in the list below
[\d\-]
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\d matches a digit (equivalent to [0-9])
\- matches the character - with index 4510 (2D16 or 558) literally (case sensitive)
;
matches the character ; with index 5910 (3B16 or 738) literally (case sensitive)
\) matches the character ) with index 4110 (2916 or 518) literally (case sensitive)
Your regular expression does not match the subject string.Try launching the debugger to find out why.

Regular Expression
No Match

/
/

Test String

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