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Rubular: a Ruby regular expression editor and tester

漆雕唯
2023-12-01

Rubular: a Ruby regular expression editor and tester

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
\AStart of string
\zEnd of string
.Any single character
\sAny whitespace character
\SAny non-whitespace character
\dAny digit
\DAny non-digit
\wAny word character (letter, number, underscore)
\WAny non-word character
\bAny word boundary character
(...)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

For a complete Ruby regex guide, see the Pickaxe.

posted on 2012-08-02 16:19  lexus 阅读( ...) 评论( ...) 编辑 收藏

转载于:https://www.cnblogs.com/lexus/archive/2012/08/02/2620237.html

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