Regular Expressions 101

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/
(\[)(.*?)3414a43(.*?)(\])
/
1st Capturing Group
(\[)
\[ matches the character [ with index 9110 (5B16 or 1338) literally (case sensitive)
2nd Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
3414a43
matches the characters 3414a43 literally (case sensitive)
3rd Capturing Group
(.*?)
.
matches any character (except for line terminators)
*? matches the previous token between zero and unlimited times, as few times as possible, expanding as needed (lazy)
4th Capturing Group
(\])
\] matches the character ] with index 9310 (5D16 or 1358) 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