Regular Expressions 101

Non-Capturing Group(?:\B(?!\w)|\b(?=\w))

1st Alternative\B(?!\w)

\Bnot a Unicode word boundary

Negative Lookahead(?!\w)

\wany word character

2nd Alternative\b(?=\w)

\ba Unicode word boundary

Positive Lookahead(?=\w)

\wany word character

Datathe literal text Data (case sensitive)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

Non-Capturing Group(?:(?<=\w)\b|(?<!\w)\B)

1st Alternative(?<=\w)\b

Positive Lookbehind(?<=\w)

\wany word character

\ba Unicode word boundary

2nd Alternative(?<!\w)\B

Negative Lookbehind(?<!\w)

\wany word character

\Bnot a Unicode word boundary

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

27 tokens

Regular Expression

(?:\B(?!\w)|\b(?=\w))Data\[3\](?:(?<=\w)\b|(?<!\w)\B)

New

 Data[3]=(uint8)Data[1];