Regular Expressions 101

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/
\[(.*?)\]\((\S*?) ?('(.*?)')?\)
/
gs
\[ matches the character [ with index 9110 (5B16 or 1338) literally (case sensitive)
1st Capturing Group
(.*?)
.
matches any character
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
\] matches the character ] with index 9310 (5D16 or 1358) literally (case sensitive)
\( matches the character ( with index 4010 (2816 or 508) literally (case sensitive)
2nd Capturing Group
(\S*?)
\S
matches any non-whitespace character (equivalent to [^\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
matches the character with index 3210 (2016 or 408) literally (case sensitive)
3rd Capturing Group
('(.*?)')?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
' matches the character ' with index 3910 (2716 or 478) literally (case sensitive)
4th Capturing Group
(.*?)
.
matches any character
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
' matches the character ' with index 3910 (2716 or 478) literally (case sensitive)
\) matches the character ) with index 4110 (2916 or 518) literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
s modifier: single line. Dot matches newline characters (draft)
Your regular expression does not match the subject string.

Regular Expression
No Match

/
/
gs

Test String

Substitution

Processing...

Code Generator

Generated Code

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Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report.
For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions