Regular Expressions 101

1st Alternative\b(?:[Yy]ellow |[Bb]lue |[Rr]ed |[Pp]urple |[Bb]lack )[Cc]olor

\ba Unicode word boundary

Non-Capturing Group(?:[Yy]ellow |[Bb]lue |[Rr]ed |[Pp]urple |[Bb]lack )

1st Alternative[Yy]ellow

Character Class[Yy]

Ythe literal Y (89₁₀ / 131₈ / 59₁₆) (case sensitive)

ythe literal y (121₁₀ / 171₈ / 79₁₆) (case sensitive)

ellow the literal text ellow (case sensitive)

2nd Alternative[Bb]lue

Character Class[Bb]

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case sensitive)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

lue the literal text lue (case sensitive)

3rd Alternative[Rr]ed

Character Class[Rr]

Rthe literal R (82₁₀ / 122₈ / 52₁₆) (case sensitive)

rthe literal r (114₁₀ / 162₈ / 72₁₆) (case sensitive)

ed the literal text ed (case sensitive)

4th Alternative[Pp]urple

Character Class[Pp]

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

pthe literal p (112₁₀ / 160₈ / 70₁₆) (case sensitive)

urple the literal text urple (case sensitive)

5th Alternative[Bb]lack

Character Class[Bb]

Bthe literal B (66₁₀ / 102₈ / 42₁₆) (case sensitive)

bthe literal b (98₁₀ / 142₈ / 62₁₆) (case sensitive)

lack the literal text lack (case sensitive)

Character Class[Cc]

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

cthe literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive)

olorthe literal text olor (case sensitive)

2nd Alternative([Cc]olor)

Group 1([Cc]olor)

Character Class[Cc]

Cthe literal C (67₁₀ / 103₈ / 43₁₆) (case sensitive)

cthe literal c (99₁₀ / 143₈ / 63₁₆) (case sensitive)

olorthe literal text olor (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

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Search reference

Regular Expression

\b(?:[Yy]ellow |[Bb]lue |[Rr]ed |[Pp]urple |[Bb]lack )[Cc]olor|([Cc]olor)

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