Regular Expressions 101

Non-Capturing Group(?:$|^|)

1st Alternative$

$end of string

2nd Alternative^

^start of string

3rd Alternative — matches an empty string

1st Alternativered-

red-the literal text red- (case insensitive)

2nd Alternativeblue-

blue-the literal text blue- (case insensitive)

3rd Alternativeindigo-

indigo-the literal text indigo- (case insensitive)

4th Alternativecool-gray-

cool-gray-the literal text cool-gray- (case insensitive)

5th Alternativepink-

pink-the literal text pink- (case insensitive)

6th Alternativeyellow-

yellow-the literal text yellow- (case insensitive)

7th Alternativeteal-

teal-the literal text teal- (case insensitive)

8th Alternativegray-

gray-the literal text gray- (case insensitive)

9th Alternativeorange-

orange-the literal text orange- (case insensitive)

10th Alternativegreen-

green-the literal text green- (case insensitive)

11th Alternativepurple-

purple-the literal text purple- (case insensitive)

Group 2(50|100|200|300|400|500|600|700|800|900)

1st Alternative50

50the literal text 50

2nd Alternative100

100the literal text 100

3rd Alternative200

200the literal text 200

4th Alternative300

300the literal text 300

5th Alternative400

400the literal text 400

6th Alternative500

500the literal text 500

7th Alternative600

600the literal text 600

8th Alternative700

700the literal text 700

9th Alternative800

800the literal text 800

10th Alternative900

Non-Capturing Group(?:$|^|)

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?:$|^|)(red-|blue-|indigo-|cool-gray-|pink-|yellow-|teal-|gray-|orange-|green-|purple-)(50|100|200|300|400|500|600|700|800|900)(?:$|^|)

Test String
New

pink-300 red-400 blue-300 teal-800

Regular Expression

Test StringNew

ExtractionProcessing...

Test String
New

Extraction
Processing...