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|
package ansi
import (
"bytes"
"io"
"net/url"
)
// A LinkElement is used to render hyperlinks.
type LinkElement struct {
BaseURL string
URL string
Children []ElementRenderer
}
func (e *LinkElement) Render(w io.Writer, ctx RenderContext) error {
for _, child := range e.Children {
if r, ok := child.(StyleOverriderElementRenderer); ok {
st := ctx.options.Styles.LinkText
if err := r.StyleOverrideRender(w, ctx, st); err != nil {
return err
}
} else {
var b bytes.Buffer
if err := child.Render(&b, ctx); err != nil {
return err
}
el := &BaseElement{
Token: b.String(),
Style: ctx.options.Styles.LinkText,
}
if err := el.Render(w, ctx); err != nil {
return err
}
}
}
u, err := url.Parse(e.URL)
if err == nil && "#"+u.Fragment != e.URL { // if the URL only consists of an anchor, ignore it
el := &BaseElement{
Token: resolveRelativeURL(e.BaseURL, e.URL),
Prefix: " ",
Style: ctx.options.Styles.Link,
}
if err := el.Render(w, ctx); err != nil {
return err
}
}
return nil
}
|
