Regular Expressions 101

Pro

\^the literal ^ (94₁₀ / 136₈ / 5E₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Non-Capturing Group(?:\[[^@-~]+[\@-\~]|[0-9@-_])

1st Alternative\[[^@-~]+[\@-\~]

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Negated Character Class[^@-~]+

+matches at least one character outside the set below:

@-~one character from @ (64₁₀) to ~ (126₁₀)

Character Class[\@-\~]

\@-\~one character from @ (64₁₀) to ~ (126₁₀)

2nd Alternative[0-9@-_]

Character Class[0-9@-_]

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

@-_one character from @ (64₁₀) to _ (95₁₀)

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

\^\[(?:\[[^@-~]+[\@-\~]|[0-9@-_])

Tue Feb 25 16:53:54 2014: [....] Starting NTP server: ntpd^[[?25l^[[?1c^[7^[[1G[^[[32m ok ^[[39;49m^[8^[[?25h^[[?0c.