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rss-shcema.go
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rss-shcema.go
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package rssreader
import (
"encoding/xml"
"time"
"github.com/araddon/dateparse"
)
// rss represents the shcema of an RSS feed
type rss struct {
XMLName xml.Name `xml:"rss"`
Version string `xml:"version,attr"`
Channel channel `xml:"channel"`
}
// in the oficial shcema channel contains more than just `item`
// but there is no need to use those fields
type channel struct {
XMLName xml.Name `xml:"channel"`
Items []item `xml:"item"`
}
// item represent the actual feed for each news
type item struct {
XMLName xml.Name `xml:"item"`
Title string `xml:"title"`
Link string `xml:"link"`
Description string `xml:"description"`
PubDate xmlTime `xml:"pubDate"`
Source *source `xml:"source"`
}
// this is for custom unmarshaling of date
type xmlTime struct {
value time.Time
hasValue bool
}
func (t *xmlTime) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
var dateString string
d.DecodeElement(&dateString, &start)
dateTime, err := dateparse.ParseAny(dateString)
if err != nil {
*t = xmlTime{hasValue: false}
return err
}
*t = xmlTime{value: dateTime, hasValue: true}
return nil
}
// this represents a cource tag
type source struct {
XMLName xml.Name `xml:"source"`
URL string `xml:"url,attr"`
Value string `xml:",chardata"`
}