bbcode - bbcodehtml/url.go

     1  package bbcodehtml
     2  
     3  import (
     4  	"fmt"
     5  	nurl "net/url"
     6  
     7  	"vimagination.zapto.org/bbcode"
     8  )
     9  
    10  const (
    11  	urlTag  = "url"
    12  	urlOpen = "<a href=%q>"
    13  )
    14  
    15  var urlClose = []byte("</a>")
    16  
    17  type url struct{}
    18  
    19  func (url) Name() string {
    20  	return "url"
    21  }
    22  
    23  func (url) Handle(p *bbcode.Processor, attr string) {
    24  	if attr != "" {
    25  		u, err := nurl.Parse(attr)
    26  		if err == nil {
    27  			fmt.Fprintf(p, urlOpen, u)
    28  			p.Process(urlTag)
    29  			p.Write(urlClose)
    30  		} else {
    31  			p.Process(urlTag)
    32  		}
    33  	} else {
    34  		attr = p.GetContents(urlTag)
    35  		u, err := nurl.Parse(attr)
    36  		if err == nil {
    37  			fmt.Fprintf(p, urlOpen, u)
    38  			p.Print(attr)
    39  			p.Write(urlClose)
    40  		} else {
    41  			p.Print(attr)
    42  		}
    43  	}
    44  }
    45