Regular Expressions 101

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Library entries

0
pcre2

MySQL DATETIME

MySQL DATETIME
Submitted by anonymous - 15 hours ago
0
pcre2

Split Http(s) Response

Split Http(s) Response
Submitted by anonymous - 2 days ago
0
pcre2

Vivaldi

Vivaldi
Submitted by anonymous - 3 days ago
0
pcre2

TXN ID

VIL ID
Submitted by anonymous - 5 days ago
0
dotnet

BI/CC

Verificação do número de BI/CC
Submitted by anonymous - 5 days ago
0
pcre2

Slurs

Not made with ill intentions.
Submitted by anonymous - 6 days ago
0
java

partnkey value

Extract value partn_key
Submitted by anonymous - 6 days ago

match valid JSON

Vote

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