From catalog/rfc9110-http.abnf rule: date1

Definition

date1 = day SP month SP year

year = 4DIGIT

month = %s"Jan" / %s"Feb" / %s"Mar" / %s"Apr" / %s"May" / %s"Jun" / %s"Jul" / %s"Aug" / %s"Sep" / %s"Oct" / %s"Nov" / %s"Dec"

day = 2DIGIT

    

Info

Rulename
date1
Dependencies
SP, DIGIT, day, month, year, date1
Used Builtins
DIGIT, SP

Alphabet

Translations

Railroad Diagram

date1 day SP month SP year

ECMAScript/JavaScript Regular Expression Literal

/^[0-9]{2} ((Oct |Nov |Ma[ry] )[0-9]{4}|Sep [0-9]{4}|Dec [0-9]{4}|Feb [0-9]{4}|A(pr |ug )[0-9]{4}|J(u[ln] [0-9]{3}|an [0-9]{3})[0-9])$/

Swift Regular Expression

[0-9]{2} ((Oct |Nov |Ma[ry] )[0-9]{4}|Sep [0-9]{4}|Dec [0-9]{4}|Feb [0-9]{4}|A(pr |ug )[0-9]{4}|J(u[ln] [0-9]{3}|an [0-9]{3})[0-9])

POSIX Extended Regular Expression

[0-9]{2} ((Oct |Nov |Ma[ry] )[0-9]{4}|Sep [0-9]{4}|Dec [0-9]{4}|Feb [0-9]{4}|A(pr |ug )[0-9]{4}|J(u[ln] [0-9]{3}|an [0-9]{3})[0-9])