Regular Expressions 101

Sponsors

Library entries

-2
pcre

test

no description available
Submitted by anonymous - 8 years ago
3
javascript

po box

no description available
Submitted by anonymous - 8 years ago
0
pcre

Any Character Between 6-64 Long

Allowing for complex passwords
Submitted by anonymous - 8 years ago
1
pcre

Facebook Video ID from link

Matches the video id in FB links
Submitted by Eirenaios - 8 years ago
-3
pcre

cake

no description available
Submitted by anonymous - 8 years ago
-3
pcre

hjghj

no description available
Submitted by anonymous - 8 years ago
1
javascript

12345

no description available
Submitted by anonymous - 8 years ago
-4
pcre

Twitter hashtags extractor

Extract hashtags from text
Submitted by anonymous - 8 years ago
-2
javascript

Select ID from regex101 URL

no description available
Submitted by Vinay - 8 years ago
1
javascript

Select inside <a> tag

no description available
Submitted by Vinay - 8 years ago
-4
javascript

Hallo

no description available
Submitted by anonymous - 8 years ago

Matching balanced parens, brackets, and braces

Vote

5

Regular Expression
pcre

/
# match a body pattern alone on a line ^\g<body>$ # we'll use (?<name>...){0} to define the pattern \g<name> # without having to match the pattern at the current position # a body pattern matches (?<body> # a sequence of (?: [^\[\]{}()\n] # non-delimiters | \g<parens> # parenthesized pattern | \g<square_brackets> # bracketed pattern | \g<curly_braces> # braced pattern )* ){0} # a parenthesized pattern matches (?<parens> \( # an open paren \g<body> # a valid body \) # a close paren ){0} # a bracketed pattern matches (?<square_brackets> \[ # an open square bracket \g<body> # a valid body \] # a close square bracket ){0} # a braced pattern matches (?<curly_braces> \{ # an open curly brace \g<body> # a valid body \} # a close curly brace ){0}
/
gmx

Description

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Submitted by Noah Luck Easterly - 9 years ago