Regular Expressions 101

Pro

^start of line

Group 1([A-Z]+)

Character Class[A-Z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Group 2(\d+)

\d+a digit, repeated at least once

Group 3((?:\.)\d+)?

?repeats the group contents below at most once:

Non-Capturing Group(?:\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

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.

25 tokens

^([A-Z]+)(\d+)((?:\.)\d+)?

M1000.7
MW300
PIW346

M1000.7
MW300
PIW346