Regular Expressions 101

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0
pcre2

正規式向後看

抓括號後的文字
Submitted by Devin - 16 minutes ago
0
pcre2

Semver regex

Example of regex for semver with pre-releases
Submitted by anonymous - a day ago
0
pcre2

Números reales

Números reales
Submitted by Carlos Osmar - 2 days ago
0
pcre2

Validación de fecha

Este código validará la fecha
Submitted by Carlos Osmar - 2 days ago
0
pcre2

Doble Espacio

Encuentra texto con toble espacio
Submitted by Carlos Osmar - 2 days ago
0
pcre

Negative search

Seach pattern that doesn't match
Submitted by Gael Langlais - 3 days ago
0
pcre2

Invoice nr

regexp search in mongo db by nr
Submitted by Tivadar - 3 days ago
0
python

apdl flst

apdl flst
Submitted by anonymous - 4 days ago
0
pcre2

MySQL DATETIME

MySQL DATETIME
Submitted by anonymous - 4 days 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