Regular Expressions 101

Positive Lookbehind(?<={)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group 1(\d+)

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

Positive Lookahead(?=:)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

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

Regular Expression

(?<={)(\d+)(?=:)

New

{"aclList": {0: {"sequence": {1: {"counterData": "some data", "trickyData": "I'm going to mess {3: up your day"

"\1"

{"aclList": {0: {"sequence": {1: {"counterData": "some data", "trickyData": "I'm going to mess {3: up your day"