Regular Expressions 101

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/
(\[.*\])(=>?)\s+(\w+[\(\)\d+\.]+)\s+?(\".*\"|\{[\s\w]+\})?
/
g
1st Capturing Group
(\[.*\])
\[ matches the character [ with index 9110 (5B16 or 1338) literally (case sensitive)
.
matches any character (except for line terminators)
* matches the previous token between zero and unlimited times, as many times as possible, giving back as needed (greedy)
\] matches the character ] with index 9310 (5D16 or 1358) literally (case sensitive)
2nd Capturing Group
(=>?)
= matches the character = with index 6110 (3D16 or 758) literally (case sensitive)
>
matches the character > with index 6210 (3E16 or 768) literally (case sensitive)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
3rd Capturing Group
(\w+[\(\)\d+\.]+)
\w
matches any word character (equivalent to [a-zA-Z0-9_])
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
Match a single character present in the list below
[\(\)\d+\.]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
\( matches the character ( with index 4010 (2816 or 508) literally (case sensitive)
\) matches the character ) with index 4110 (2916 or 518) literally (case sensitive)
\d matches a digit (equivalent to [0-9])
+ matches the character + with index 4310 (2B16 or 538) literally (case sensitive)
\. matches the character . with index 4610 (2E16 or 568) literally (case sensitive)
\s
matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])
+? matches the previous token between one and unlimited times, as few times as possible, expanding as needed (lazy)
4th Capturing Group
(\".*\"|\{[\s\w]+\})?
? matches the previous token between zero and one times, as many times as possible, giving back as needed (greedy)
1st Alternative
\".*\"
\" matches the character " with index 3410 (2216 or 428) literally (case sensitive)
.
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 the character " with index 3410 (2216 or 428) literally (case sensitive)
2nd Alternative
\{[\s\w]+\}
\{ matches the character { with index 12310 (7B16 or 1738) literally (case sensitive)
Match a single character present in the list below
[\s\w]
+ matches the previous token between one and unlimited times, as many times as possible, giving back as needed (greedy)
\s matches any whitespace character (equivalent to [\r\n\t\f\v \u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff])
\w matches any word character (equivalent to [a-zA-Z0-9_])
\} matches the character } with index 12510 (7D16 or 1758) literally (case sensitive)
Global pattern flags
g modifier: global. All matches (don't return after first match)
Your regular expression does not match the subject string.

Regular Expression
No Match

/
/
g

Test String

Substitution

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Code Generator

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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

Regular Expressions 101

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