format as a regular expression (P155)
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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
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regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE
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Data type
String
Statements
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((?:(?:[^?+*{}()[\]\\|]+|\\.|\[(?:\^?\\.|\^[^\\]|[^\\^])(?:[^\]\\]+|\\.)*\]|\((?:\?[:=!]|\?<[=!]|\?>)?(?1)??\)|\(\?(?:R|[+-]?\d+)\))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*)
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