Regular Expressions 101

Group 1(([a-z]+)(-[a-z]+)*([-]{2}[a-z]+(-[a-z]+)?)?)

Group 2([a-z]+)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 3(-[a-z]+)*

*repeats the group contents below any number of times:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 4([-]{2}[a-z]+(-[a-z]+)?)?

?repeats the group contents below at most once:

Character Class[-]{2}

{2}matches exactly 2 characters from the set below:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

Group 5(-[a-z]+)?

?repeats the group contents below at most once:

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[a-z]+

+matches at least one character from the set below:

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

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

(([a-z]+)(-[a-z]+)*([-]{2}[a-z]+(-[a-z]+)?)?)

New

--color
--color-
--color-ui
--color-ui--
--color--hover
--color--hover-
--color-banana-ui-mango
--color-banana-ui-mango--
--color-banana-ui-mango--hover
--color-banana-ui-mango--hover-
--color-banana-ui-mango--hover-focus
--color-banana-ui-mango--hover--
--color-banana-ui-mango--lol-bla--bla