// InsertAt attempts to insert the value v at the given logical index i. It
// returns false if i is out of bounds. Note that a value of i equal to the
// length of this GapSlice is not considered out of bounds; it is handled as
// a special case of appending to this GapSlice.
func (s *GapSlice) InsertAt(i int, v interface{}) (success bool) {
if i > s.size {
return false
}
list := s.list
// Special case: inserting in the very end of this gap slice.
if i == s.size {
list.PushBack(v)
s.size += 1
return true
}
e, offset := s.locate(i)
if e == nil {
return false
}
if slice, isSlice := e.Value.(gapSliceChunk); isSlice {
if offset == 0 {
list.InsertBefore(v, e)
} else {
a, b := slice[:offset], slice[offset:]
e.Value = a
e = list.InsertAfter(v, e)
list.InsertAfter(b, e)
}
s.size += 1
return true
}
list.InsertBefore(v, e)
s.size += 1
return true
}
func (node *Node) CreateNodeBefor(nodename string, nodevalue string, args ...string) (*Node, error) {
if len(args)%2 != 0 {
return &Node{}, DyXmlErr{msg: "args not pairs"}
}
ele := node.NodeAdd
list := node.NodeFather.ChildEle
newnode := &Node{Name: nodename, Value: nodevalue, NodeFather: node.NodeFather, Attr: make(map[string]string), attr_order: make([]string, 0, len(args)/2)}
for i := 0; i < len(args); i += 2 {
newnode.Attr[args[i]] = args[i+1]
newnode.attr_order = append(newnode.attr_order, args[i])
}
newele := list.InsertBefore(newnode, ele)
newnode.NodeAdd = newele
return newnode, nil
}
// Add a new service definition to the list. If the definition is added or
// updated, return true.
func (l *serviceList) Add(service *ServiceDef) bool {
list := (*list.List)(l)
for iter := list.Front(); iter != nil; iter = iter.Next() {
e := iter.Value.(*ServiceDef)
res := service.compare(e)
if res > 0 {
continue
} else if res < 0 {
list.InsertBefore(service, iter)
return true
} else if e.connId == service.connId {
// Replace the definition if it is from the same connection.
iter.Value = service
return true
}
// Equal entries but from a different connection.
return false
}
list.PushBack(service)
return true
}