Jason Streifling
d11b229691
It seems that undefined content is only mentioned in RFC4287 because link and category are elements and those usually need some content.
45 lines
987 B
Go
45 lines
987 B
Go
package atom
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import (
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"errors"
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"fmt"
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"html"
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)
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type Category struct {
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*CommonAttributes
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Term string `xml:"term,attr"`
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Scheme IRI `xml:"scheme,attr,omitempty"`
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Label string `xml:"label,attr,omitempty"`
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}
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// NewCategory creates a new Category. It returns a *Category and an error.
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func NewCategory(term string) *Category {
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return &Category{Term: term}
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}
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// SetLabel sets the label of the Category.
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func (c *Category) SetLabel(label string) {
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c.Label = html.UnescapeString(label)
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}
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// Check checks the Category for incompatibilities with RFC4287. It returns an
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// error.
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func (c *Category) Check() error {
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if c.Term == "" {
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return errors.New("term attribute of category empty")
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}
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if c.Scheme != "" {
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if !isValidIRI(c.Scheme) {
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return fmt.Errorf("scheme attribute %v of category not correctly formatted", c.Scheme)
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}
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}
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if !isCorrectlyEscaped(c.Label) {
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return fmt.Errorf("label attribute %v of category not correctly escaped", c.Label)
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}
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return nil
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}
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