Created NewLink

category.go

@@ -8,7 +8,7 @@ import (
 
 type Category struct {
 	*CommonAttributes
-	Content Content `xml:"content"` // should this even exist in here?
+	Content Content `xml:"content"` // undefinedContent in RFC4287
 	Term    string  `xml:"term,attr"`
 	Scheme  URI     `xml:"scheme,attr,omitempty"`
 	Label   string  `xml:"label,attr,omitempty"`

icon.go

@@ -1,15 +1,26 @@
 package atomfeed
 
-import "errors"
+import (
+	"errors"
+	"fmt"
+)
 
 type Icon struct {
 	*CommonAttributes
 	URI URI `xml:"uri"`
 }
 
+func NewIcon(uri string) *Icon {
+	return &Icon{URI: URI(uri)}
+}
+
 func (i *Icon) Check() error {
 	if i.URI == "" {
 		return errors.New("uri element of icon empty")
+	} else {
+		if !isValidURI(i.URI) {
+			return fmt.Errorf("uri attribute %v of icon not correctly formatted", i.URI)
+		}
 	}
 
 	return nil

id.go

@@ -19,6 +19,10 @@ func NewID() *ID {
 func (i *ID) Check() error {
 	if i.URI == "" {
 		return errors.New("uri element of id empty")
+	} else {
+		if !isValidURI(i.URI) {
+			return fmt.Errorf("uri element %v of id not correctly formatted", i.URI)
+		}
 	}
 
 	return nil

link.go

@@ -7,8 +7,8 @@ import (
 
 type Link struct {
 	*CommonAttributes
-	Title    *Text       `xml:"title,attr,omitempty"`
+	Title    Text        `xml:"title,attr,omitempty"`
-	Content  *Content    `xml:"content"`
+	Content  Content     `xml:"content"` // undefinedContent in RFC4287
 	Href     URI         `xml:"href,attr"`
 	Rel      string      `xml:"rel,attr,omitempty"`
 	Type     MediaType   `xml:"type,attr,omitempty"`
@@ -16,13 +16,22 @@ type Link struct {
 	Length   uint        `xml:"length,attr,omitempty"`
 }
 
+func NewLink(href string) (*Link, error) {
+	content, err := NewContent(InlineText, "", "")
+	if err != nil {
+		return nil, fmt.Errorf("error creating content element: %v", err)
+	}
+
+	return &Link{Href: URI(href), Content: content}, nil
+}
+
 func (l *Link) Check() error {
 	if l.Href == "" {
 		return errors.New("href attribute of link empty")
 	}
 
 	if l.Title != nil {
-		if err := (*l.Title).Check(); err != nil {
+		if err := l.Title.Check(); err != nil {
 			return fmt.Errorf("title attribute of link %v: %v", l.Href, err)
 		}
 	}
@@ -30,7 +39,7 @@ func (l *Link) Check() error {
 	if l.Content == nil {
 		return fmt.Errorf("no content element of link %v", l.Href)
 	} else {
-		if err := (*l.Content).Check(); err != nil {
+		if err := l.Content.Check(); err != nil {
 			return fmt.Errorf("content element of link %v: %v", l.Href, err)
 		}
 	}