format as a regular expression (P17)
From Crystal Pool
regex describing an identifier or a Wikidata property
- regex
- regular expression
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | format as a regular expression |
regex describing an identifier or a Wikidata property |
|
Data type
String
Statements
https://regex101.com/?regex=$1
((?:(?:[^?+*{}()[\]\\|]+|\\.|\[(?:\^?\\.|\^[^\\]|[^\\^])(?:[^\]\\]+|\\.)*\]|\((?:\?[:=!]|\?<[=!]|\?>)?(?1)??\)|\(\?(?:R|[+-]?\d+)\))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*)
Constraints
unknown value
((?:(?:[^?+*{}()[\]\\|]+|\\.|\[(?:\^?\\.|\^[^\\]|[^\\^])(?:[^\]\\]+|\\.)*\]|\((?:\?[:=!]|\?<[=!]|\?>)?(?1)??\)|\(\?(?:R|[+-]?\d+)\))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*)
unknown value
