func simpleCompound(cn *parse.Compound, upto *parse.Indexing) (bool, string, error) {
tilde := false
head := ""
for _, in := range cn.Indexings {
if len(in.Indicies) > 0 {
return false, "", nil
}
switch in.Head.Type {
case parse.Tilde:
tilde = true
case parse.Bareword, parse.SingleQuoted, parse.DoubleQuoted:
head += in.Head.Value
default:
return false, "", nil
}
if in == upto {
break
}
}
if tilde {
i := strings.Index(head, "/")
if i == -1 {
i = len(head)
}
uname := head[:i]
home, err := util.GetHome(uname)
if err != nil {
return false, "", err
}
head = home + head[i:]
}
return true, head, nil
}
func mustGetHome(uname string) string {
dir, err := util.GetHome(uname)
if err != nil {
throw(err)
}
return dir
}
func DataDir() (string, error) {
home, err := util.GetHome("")
if err != nil {
return "", err
}
return home + "/.elvish", nil
}