Regular Expressions 101

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/
(\[([^\]]+)\]\((\S+(?=\)))\))
/
1st Capturing Group
(\[([^\]]+)\]\((\S+(?=\)))\))
\[ matches the character [ with index 9110 (5B16 or 1338) literally (case sensitive)
2nd Capturing Group
([^\]]+)
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 9310 (5D16 or 1358) literally (case sensitive)
\] matches the character ] with index 9310 (5D16 or 1358) literally (case sensitive)
\( matches the character ( with index 4010 (2816 or 508) literally (case sensitive)
3rd Capturing Group
(\S+(?=\)))
\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 one and unlimited times, as many times as possible, giving back as needed (greedy)
Positive Lookahead
(?=\))
Assert that the Regex below matches
\) matches the character ) with index 4110 (2916 or 518) literally (case sensitive)
\) matches the character ) with index 4110 (2916 or 518) literally (case sensitive)
Your regular expression does not match the subject string.

Regular Expression
No Match

/
/

Test String