🧩 Regex

Regular Expressions guide

πŸ“• Notebooks

🚩 Meta Characters

🎎 Character Matches

πŸŽ€ Symbol

πŸ“ƒ Description

.

Single character

^

Start of a string

$

End of a string

[]

One of the set of characters within []

[a-z]

One of the range of characters

[^abc]

Not a, b or c

[ab]

a or b (a and b are strings)

()

Scoping for operators

(?:<pattern>)

Passive grouping (details)

\

Escape character

πŸŽ‡ Character Symbols

πŸŽ€ Symbol

πŸ“ƒ Description

🀯 Equivalent

\b

Word boundary

​

\d

Any digit

[0-9]

\D

Any non-digit

[^0-9]

\s

Any whitespace

[ \t\n\r\f\v]

\S

Any non-whitespace

[^ \t\n\r\f\v]

\w

Alphanumeric character

[a-zA-Z0-9_]

\W

Non-alphanumeric character

[^a-zA-Z0-9_]

πŸ’« Repetitions

πŸŽ€ Symbol

πŸ“ƒ Description

*

Zero or more occurrences

+

One or more occurrences

?

Zero or one occurrences

{n}

Exactly n repetitions

{n,}

At least n repetitions

{,n}

At most n repetitions

{m,n}

At least m and at most n repetitions

πŸ”— References