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Rubular

a Ruby regular expression editor

Your regular expression:
//

Your test string: Wrap words Show invisibles

Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them.

To start, enter a regular expression and a test string. Or you can try an example.

make permalink clear fields

Regex quick reference

`[abc]`	A single character of: a, b, or c
`[^abc]`	Any single character except: a, b, or c
`[a-z]`	Any single character in the range a-z
`[a-zA-Z]`	Any single character in the range a-z or A-Z
`^`	Start of line
`$`	End of line
`\A`	Start of string
`\z`	End of string

`.`	Any single character
`\s`	Any whitespace character
`\S`	Any non-whitespace character
`\d`	Any digit
`\D`	Any non-digit
`\w`	Any word character (letter, number, underscore)
`\W`	Any non-word character
`\b`	Any word boundary

`(...)`	Capture everything enclosed
`(a\|b)`	a or b
`a?`	Zero or one of a
`a*`	Zero or more of a
`a+`	One or more of a
`a{3}`	Exactly 3 of a
`a{3,}`	3 or more of a
`a{3,6}`	Between 3 and 6 of a

options: i case insensitive m make dot match newlines x ignore whitespace in regex o perform #{...} substitutions only once

Rubular uses Ruby 2.5.9. Share questions/comments/issues @rubular. Made by Michael Lovitt @lovitt.

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