Regular Expressions 101

Pro

1st Alternative^\[+[A-Z\d-]+:\s*

^start of line

\[+the literal [ (91₁₀ / 133₈ / 5B₁₆) , repeated at least once

Character Class[A-Z\d-]+

+matches at least one character from the set below:

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

\da digit

-the literal - (45₁₀ / 55₈ / 2D₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

2nd Alternative]+$

]+the literal ] (93₁₀ / 135₈ / 5D₁₆) , repeated at least once

$end of line

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-]+:\s*|]+$

New

[ABC1: text1]
[[DC: this is a text]]
[ABC-O: potatoes]
[[C-DF: hello]]

[ABC1: text1]
[[DC: this is a text]]
[ABC-O: potatoes]
[[C-DF: hello]]