Regular Expressions 101

Explanation

Pro

(?s)applies the following effective flags to the remainder of the pattern: gms

s modifier: single line. Allows a dot to match line terminators

Error:the literal text Error: (case sensitive)

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

Non-Capturing Group(?:\[\d+m)+

+repeats the group contents below at least once:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\d+a Unicode decimal digit, repeated at least once

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

Group 1(.*?)

.*?any Unicode character, repeated any number of times

Positive Lookahead(?=(?:\[\d+m)*\n\n)

Non-Capturing Group(?:\[\d+m)*

*repeats the group contents below any number of times:

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

\d+a Unicode decimal digit, repeated at least once

mthe literal m (109₁₀ / 155₈ / 6D₁₆) (case sensitive)

\na line-feed (newline) character (ASCII 10)

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

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?s)Error:\s*(?:\[\d+m)+(.*?)(?=(?:\[\d+m)*\n\n)

New

[31m
[1m[31mError: [0m[0m[1mError import KeyPair: InvalidKeyPair.Duplicate: The keypair 'avtx-ctrl-key' already exists.
	status code: 400, request id: a56bb69b-0dc1-4c2f-a0c0-96d1be7c1efe[0m

[0m[0m[0m
[31m
[1m[31mError: [0m[0m[1mError

Substitution

[31m
[1m[31mError: [0m[0m[1mError import KeyPair: InvalidKeyPair.Duplicate: The keypair 'avtx-ctrl-key' already exists.
	status code: 400, request id: a56bb69b-0dc1-4c2f-a0c0-96d1be7c1efe[0m

[0m[0m[0m
[31m
[1m[31mError: [0m[0m[1mError