pstuifzand/ekster

package rss

import (
    "strings"
    "time"
)

// TimeLayouts is contains a list of time.Parse() layouts that are used in
// attempts to convert item.Date and item.PubDate string to time.Time values.
// The layouts are attempted in ascending order until either time.Parse()
// does not return an error or all layouts are attempted.
var TimeLayouts = []string{
    "Mon, _2 Jan 2006 15:04:05 Z",
    "Mon, _2 Jan 2006 15:04:05 MST",
    "Mon, _2 Jan 06 15:04:05 MST",
    "Mon, _2 Jan 2006 15:04:05 -0700",
    "Mon, _2 Jan 06 15:04:05 -0700",
    "_2 Jan 2006 15:04:05 MST",
    "_2 Jan 06 15:04:05 MST",
    "_2 Jan 2006 15:04:05 -0700",
    "_2 Jan 06 15:04:05 -0700",
    "2006-01-02 15:04:05",
    "Jan _2, 2006 15:04 PM MST",
    "Jan _2, 06 15:04 PM MST",
    time.ANSIC,
    time.UnixDate,
    time.RubyDate,
    time.RFC822,
    time.RFC822Z,
    time.RFC850,
    time.RFC1123,
    time.RFC1123Z,
    time.RFC3339,
    time.RFC3339Nano,
}

func parseTime(s string) (time.Time, error) {
    s = strings.TrimSpace(s)

    var e error
    var t time.Time

    for _, layout := range TimeLayouts {
        t, e = time.Parse(layout, s)
        if e == nil {
            return t, e
        }
    }

    return time.Time{}, e
}