extract data from media elements

src/parser/media.go

@@ -0,0 +1,53 @@
+package parser
+
+type media struct {
+	MediaGroups []mediaGroup `xml:"http://search.yahoo.com/mrss/ group"`
+
+	MediaThumbnails   []mediaThumbnail   `xml:"http://search.yahoo.com/mrss/ thumbnail"`
+	MediaDescriptions []mediaDescription `xml:"http://search.yahoo.com/mrss/ description"`
+}
+
+type mediaGroup struct {
+	MediaThumbnails   []mediaThumbnail   `xml:"http://search.yahoo.com/mrss/ thumbnail"`
+	MediaDescriptions []mediaDescription `xml:"http://search.yahoo.com/mrss/ description"`
+}
+
+type mediaContent struct {
+	URL      string `xml:"url,attr"`
+	Type     string `xml:"type,attr"`
+	FileSize string `xml:"fileSize,attr"`
+	Medium   string `xml:"medium,attr"`
+}
+
+type mediaThumbnail struct {
+	URL string `xml:"url,attr"`
+}
+
+type mediaDescription struct {
+	Type        string `xml:"type,attr"`
+	Description string `xml:",chardata"`
+}
+
+func (m *media) firstMediaThumbnail() string {
+	for _, t := range m.MediaThumbnails {
+		return t.URL
+	}
+	for _, g := range m.MediaGroups {
+		for _, t := range g.MediaThumbnails {
+			return t.URL
+		}
+	}
+	return ""
+}
+
+func (m *media) firstMediaDescription() string {
+	for _, d := range m.MediaDescriptions {
+		return plain2html(d.Description)
+	}
+	for _, g := range m.MediaGroups {
+		for _, d := range g.MediaDescriptions {
+			return plain2html(d.Description)
+		}
+	}
+	return ""
+}