Regular Expressions 101

Pro

Negative Lookbehind(?<!\S)

\Sany character that is not Unicode whitespace

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

Group 1(config\.[^\s_\]]*)

configthe literal text config (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Negated Character Class[^\s_\]]*

*matches any number of characters outside the set below:

\sa Unicode whitespace character

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

\]the literal ] (93₁₀ / 135₈ / 5D₁₆)

_ROLE]the literal text _ROLE] (case sensitive)

Negative Lookahead(?!\S)

\Sany character that is not Unicode whitespace

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

(?<!\S)\[(config\.[^\s_\]]*)_ROLE](?!\S)

New

[config.OPERATOR_ROLE]
[config.MENEGER_ROLE]
[config.MENEGER_ROLE]test_ROLE]
[config.MENEGER_TEST_ROLE]test_ROLE]

{\g<1>_ROLE}

[config.OPERATOR_ROLE]
[config.MENEGER_ROLE]
[config.MENEGER_ROLE]test_ROLE]
[config.MENEGER_TEST_ROLE]test_ROLE]