hugo/transform/absurl.go
Noah Campbell 86233c00a0 Remove the hugo-nav function
Remove the hugo-nav since it relied on a slow library.  The current
build reimplements the absurl functionality based on string replace.
Discovered that my prior implementation missed the requirement for
making absolute paths (/path) absolute with the host, whereas a relative
path is left untouched.  Updated the test cases to support this if this
is reimplemented.
2013-11-05 22:28:06 +00:00

59 lines
1.5 KiB
Go

package transform
import (
htmltran "code.google.com/p/go-html-transform/html/transform"
"net/url"
"bytes"
)
func AbsURL(absURL string) (trs []link, err error) {
var baseURL *url.URL
if baseURL, err = url.Parse(absURL); err != nil {
return
}
var (
srcdq = []byte(" src=\""+baseURL.String()+"/")
hrefdq = []byte(" href=\""+baseURL.String()+"/")
srcsq = []byte(" src='"+baseURL.String()+"/")
hrefsq = []byte(" href='"+baseURL.String()+"/")
)
trs = append(trs, func(content []byte) []byte {
content = bytes.Replace(content, []byte(" src=\"/"), srcdq, -1)
content = bytes.Replace(content, []byte(" src='/"), srcsq, -1)
content = bytes.Replace(content, []byte(" href=\"/"), hrefdq, -1)
content = bytes.Replace(content, []byte(" href='/"), hrefsq, -1)
return content
})
return
}
type elattr struct {
tag, attr string
}
func absUrlify(baseURL *url.URL, selectors ...elattr) (trs []*htmltran.Transform, err error) {
var inURL *url.URL
replace := func(in string) string {
if inURL, err = url.Parse(in); err != nil {
return in + "?"
}
if fragmentOnly(inURL) {
return in
}
return baseURL.ResolveReference(inURL).String()
}
for _, el := range selectors {
mt := htmltran.MustTrans(htmltran.TransformAttrib(el.attr, replace), el.tag)
trs = append(trs, mt)
}
return
}
func fragmentOnly(u *url.URL) bool {
return u.Fragment != "" && u.Scheme == "" && u.Opaque == "" && u.User == nil && u.Host == "" && u.Path == "" && u.Path == "" && u.RawQuery == ""
}