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|
package server
import (
"strconv"
"sort"
"fmt"
"io"
)
type autokey struct {
flag bool
n int
v string
}
type automap map[string]interface{}
type autokeys []autokey
func (t autokey) String() string {
return t.v
}
func (t autokeys) Len() int {
return len(t)
}
func (t autokeys) Less(i, j int) bool {
a := &t[i]
b := &t[j]
if a.flag && b.flag {
return a.n < b.n
}
if !a.flag && !b.flag {
return a.v < b.v
}
return b.flag
}
func (t autokeys) Swap(i, j int) {
t[i], t[j] = t[j], t[i]
}
func (m automap) add(v interface{}) {
for n := 1;; n++ {
k := fmt.Sprint(n)
if _, ok := m[k]; !ok {
m[k] = v
break
}
}
}
func (m automap) del(k string) bool {
if _, ok := m[k]; !ok {
return false
}
delete(m, k)
return true
}
func (m automap) rename(old string, new string) bool {
if _, ok := m[old]; !ok {
return false
}
if _, ok := m[new]; ok {
return false
}
m[new] = m[old]
delete(m, old)
return true
}
func (m automap) show(w io.Writer) {
var keys autokeys
for k, _ := range m {
t := autokey{v: k}
n, err := strconv.Atoi(k)
if err == nil {
t.flag = true
t.n = n
}
keys = append(keys, t)
}
sort.Sort(keys)
for _, k := range keys {
fmt.Fprintln(w, k, m[k.v])
}
}
|
