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%%{
machine smtp_date;
include smtp_whitespace "smtp_whitespace.rl";
# SMTP date spec
# Obtained from: http://tools.ietf.org/html/rfc5322#section_3.3
digit_2 = digit{2};
digit_4 = digit{4};
day_name = "Mon" | "Tue" | "Wed" | "Thu" |
"Fri" | "Sat" | "Sun";
day_of_week = FWS? day_name;
day = FWS? digit{1,2} FWS;
month = "Jan" | "Feb" | "Mar" | "Apr" |
"May" | "Jun" | "Jul" | "Aug" |
"Sep" | "Oct" | "Nov" | "Dec";
year = FWS digit{4,} FWS;
date = day month year;
hour = digit_2;
minute = digit_2;
second = digit_2;
time_of_day = hour ":" minute (":" second )?;
zone = FWS ("+" | "-") digit_4;
time = time_of_day zone;
date_time = (day_of_week ",")? date time;
}%%
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