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format as a regular expression(P1793)

From Wikidata
regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE
  • regex
  • regular expression
  • allowed values
  • regexp
LanguageLabelDescriptionAlso known as
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    English
    format as a regular expression
    regex describing an identifier or a Wikidata property. When using on property constraints, ensure syntax is a PCRE
    • regex
    • regular expression
    • allowed values
    • regexp

    Data type

    String

    Statements

    0 references
    When used in property constraint, it should contain PCRE2 regular expression, treated as "full match". For example, "(?i)[a-z]+|\d+|" means that validated string should match /^(?:[a-z]+|\d+)$/i or be set to "no value" or "unknown value"(English)
    0 references
    https://regexper.com/#$1
    1 reference
    ((?:(?:[^?+*{}()[\]\\(English)
    https://regex101.com/?regex=$1
    0 references
    no value
    0 references

    Constraints

    ((?:(?:[^?+*{}()[\]\\|]+|\\.|\[(?:\^?\\.|\^[^\\]|[^\\^])(?:[^\]\\]+|\\.)*\]|\((?:\?[:=!]|\?<[=!]|\?>)?(?1)??\)|\(\?(?:R|[+-]?\d+)\))(?:(?:[?+*]|\{\d+(?:,\d*)?\})[?+]?)?|\|)*)
    [A-z] will match some punctuation characters as well. Use [A-Za-z] instead if this should match uppercase and lowercase a to z.(English)
    0 references
    Forward slashes should not be escaped.(English)
    0 references
    Retrieved from "https://www.wikidata.org/w/index.php?title=Property:P1793&oldid=2379252069"
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