Regular Expressions 101

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case sensitive)

Group StartByte(?<StartByte>[0-9])

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Non-Capturing Group(?:.(?<StartBit>[0-7]))?

?repeats the group contents below at most once:

.any character (except for line terminators)

Group StartBit(?<StartBit>[0-7])

Character Class[0-7]

0-7one character from 0 (48₁₀) to 7 (55₁₀)

Non-Capturing Group(?:<<(?<LeftShift>[0-9]))?

?repeats the group contents below at most once:

<<the literal text <<

Group LeftShift(?<LeftShift>[0-9])

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\|?optionally matches the literal | (124₁₀ / 174₈ / 7C₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

B(?<StartByte>[0-9])(?:.(?<StartBit>[0-7]))?(?:<<(?<LeftShift>[0-9]))?\|?

New

B0<<8|B0|B1.6<<8

B0.7<<8

(B0.7-B0.0)