Regular Expressions 101

Pro

1st Alternative(?:\[?color=#[0-9a-f]{6}]?)

Non-Capturing Group(?:\[?color=#[0-9a-f]{6}]?)

\[?optionally matches the literal [ (91₁₀ / 133₈ / 5B₁₆)

color=#the literal text color=# (case insensitive)

Character Class[0-9a-f]{6}

{6}matches exactly 6 characters from the set below:

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

a-fone character from a (97₁₀) to f (102₁₀) (case insensitive)

]?optionally matches the literal ] (93₁₀ / 135₈ / 5D₁₆)

2nd Alternative(?:\[?color=rgb$\d{1,3}, \d{1,3}, \d{1,3}$]?)

Non-Capturing Group(?:\[?color=rgb$\d{1,3}, \d{1,3}, \d{1,3}$]?)

\[?optionally matches the literal [ (91₁₀ / 133₈ / 5B₁₆)

color=rgbthe literal text color=rgb (case insensitive)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

\d{1,3}a digit, repeated between 1 and 3 times

, the literal text ,

\d{1,3}a digit, repeated between 1 and 3 times

, the literal text ,

\d{1,3}a digit, repeated between 1 and 3 times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

]?optionally matches the literal ] (93₁₀ / 135₈ / 5D₁₆)

3rd Alternative\[?\/color]?

\[?optionally matches the literal [ (91₁₀ / 133₈ / 5B₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

colorthe literal text color (case insensitive)

]?optionally matches the literal ] (93₁₀ / 135₈ / 5D₁₆)

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

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25 tokens

(?:\[?color=#[0-9a-f]{6}]?)|(?:\[?color=rgb\(\d{1,3}, \d{1,3}, \d{1,3}\)]?)|\[?\/color]?

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