Regular Expressions 101

Explanation
Pro

Non-Capturing Group(?:I\d-?)*

*repeats the group contents below any number of times:

Ithe literal I (73₁₀ / 111₈ / 49₁₆) (case sensitive)

\da Unicode decimal digit

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

I3the literal text I3 (case sensitive)

Non-Capturing Group(?:-?I\d)*

*repeats the group contents below any number of times:

-?optionally matches the literal - (45₁₀ / 55₈ / 2D₁₆)

Ithe literal I (73₁₀ / 111₈ / 49₁₆) (case sensitive)

\da Unicode decimal digit

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

(?:I\d-?)*I3(?:-?I\d)*

A-B-C-I1-I2-D-E-F-I1-I3-D-D-D-D-I1-I1-I3-I1-I1-I3-I4-L-K-I3-P-F-I4-I2

A-B-C-I1-I2-D-E-F-I1-I3-D-D-D-D-I1-I1-I3-I1-I1-I3-I4-L-K-I3-P-F-I4-I2