format as a regular expression (P876)
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regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE
- regex
- regular expression
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | format as a regular expression |
regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE |
|
Data type
String
Statements
https://regex101.com/?regex=$1
0 references
((?:(?:[^?+*{}()[\]\\|]+|\\.|\[(?:\^?\\.|\^[^\\]|[^\\^])(?:[^\]\\]+|\\.)*\]|\((?:\?[:=!]|\?<[=!]|\?>)?(?1)??\)|\(\?(?:R|[+-]?\d+)\))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*)