Regular Expressions 101

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Library entries

4
pcre

,(?=([^\"]*\"[^\"]*\")*(?![^\"]*\"))

no description available
Submitted by anonymous - 6 years ago
4
pcre

For Auto RTFs

no description available
Submitted by Dan Bloomquist - 10 years ago
4
pcre

1st TSV

no description available
Submitted by DynV - 9 years ago
4
pcre

YouTube Grabber Cleanup

no description available
Submitted by anonymous - 9 years ago
4
pcre

Task 1

Finds a happy smile, except sad one
Submitted by Kovalev Evgeny - 9 years ago
4
pcre

Hungarian ANDOK system id

no description available
Submitted by Tana - 9 years ago
4
pcre

Command handling

Handles commands like in CMD
Submitted by anonymous - 8 years ago
4
pcre

Get URL parameters

no description available
Submitted by anonymous - 8 years ago

match valid JSON

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26

Regular Expression
pcre

/
(?(DEFINE) # Note that everything is atomic, JSON does not need backtracking if it's valid # and this prevents catastrophic backtracking (?<json>(?>\s*(?&object)\s*|\s*(?&array)\s*)) (?<object>(?>\{\s*(?>(?&pair)(?>\s*,\s*(?&pair))*)?\s*\})) (?<pair>(?>(?&STRING)\s*:\s*(?&value))) (?<array>(?>\[\s*(?>(?&value)(?>\s*,\s*(?&value))*)?\s*\])) (?<value>(?>true|false|null|(?&STRING)|(?&NUMBER)|(?&object)|(?&array))) (?<STRING>(?>"(?>\\(?>["\\\/bfnrt]|u[a-fA-F0-9]{4})|[^"\\\0-\x1F\x7F]+)*")) (?<NUMBER>(?>-?(?>0|[1-9][0-9]*)(?>\.[0-9]+)?(?>[eE][+-]?[0-9]+)?)) ) \A(?&json)\z
/
x

Description

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Submitted by Mateon1 - 8 years ago