R: Parse and print http dates.

parse_http_date {httr}

R Documentation

Parse and print http dates.

Description

As defined in RFC2616, http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3, there are three valid formats:

Sun, 06 Nov 1994 08:49:37 GMT ; RFC 822, updated by RFC 1123
Sunday, 06-Nov-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
Sun Nov 6 08:49:37 1994 ; ANSI C's asctime() format

Usage

parse_http_date(x, failure = NA)

http_date(x)

Arguments

x

For parse_http_date, a character vector of strings to parse. All elements must be of the same type.

For http_date, a POSIXt vector.

failure

What to return on failure?

Value

A POSIXct object if succesful, otherwise failure

Examples

parse_http_date("Sun, 06 Nov 1994 08:49:37 GMT")
parse_http_date("Sunday, 06-Nov-94 08:49:37 GMT")
parse_http_date("Sun Nov  6 08:49:37 1994")

http_date(Sys.time())

[Package httr version 1.3.1 Index]