Regular Expressions 101

Non-Capturing Group(?:@pattern\s+)?

?repeats the group contents below at most once:

@patternthe literal text @pattern (case sensitive)

\s+a Unicode whitespace character, repeated at least once

Non-Capturing Group(?:@color\s+)?

?repeats the group contents below at most once:

@colorthe literal text @color (case sensitive)

\s+a Unicode whitespace character, repeated at least once

@productthe literal text @product (case sensitive)

Non-Capturing Group(?:\s+with @[A-Z,a-z]+)?

?repeats the group contents below at most once:

\s+a Unicode whitespace character, repeated at least once

with @the literal text with @ (case sensitive)

Character Class[A-Z,a-z]+

+matches at least one character from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

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.

Search reference

Regular Expression

(?:@pattern\s+)?(?:@color\s+)?@product(?:\s+with @[A-Z,a-z]+)?

I am looking for a @color @product with @pattern and @pattern @color @product.