Regular Expressions 101

Character Class[0-9]+

+matches at least one character from the set below:

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

\s?optionally matches any whitespace character

Character Class[â€“|-]?

?matches at most one character from the set below:

âthe literal â (226₁₀ / 342₈ / E2₁₆) (case insensitive)

€the literal € (8364₁₀ / 20254₈ / 20AC₁₆)

“the literal “ (8220₁₀ / 20034₈ / 201C₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\s?optionally matches any whitespace character

Character Class[0-9]*

*matches any number of characters from the set below:

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

\s?optionally matches any whitespace character

g{0,1}optionally matches the literal g (103₁₀ / 147₈ / 67₁₆) (case insensitive)

\ban ASCII word boundary

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.

25 tokens

Regular Expression

[0-9]+\s?[â€“|-]?\s?[0-9]*\s?g{0,1}\b

New

100g Butter
100-300g Butter
100 - 300g Butter

1

100g Butter
100-300g Butter
100 - 300g Butter