unexpected history behavior #1
Description
I am working on a small example that uses the readline package
When I enter each number 1,2,3 and use the arrow keys to navigate the history, I get the sequence 2,3,2,1
$ go run cli.go
>1
1
>2
2
>3
3
1
When I restart the program and enter A then this entry is not showing in the history. I was expecting this.
Maybe I setup the program wrong. (what is the role of the ps2 argument in NewLine?)
package main
import (
"fmt"
"log"
"os"
"path"
"github.com/kless/term"
"github.com/kless/term/readline"
)
var historyFile = path.Join(os.TempDir(), "test_history")
func main() {
hist, err := readline.NewHistoryOfSize(historyFile, 10)
if err != nil {
log.Fatal("could not create history", err)
}
ter, _ := term.New()
defer func() {
if err := ter.Restore(); err != nil {
log.Print(err)
}
}()
l, err := readline.NewLine(ter, ">", "?", 1, hist)
if err != nil {
log.Fatal("NewLine failed", err)
}
for {
entry, err := l.Read()
if err != nil {
log.Fatal("Read failed", err)
}
if entry == "exit" || entry == "quit" {
break
}
fmt.Println(entry)
}
}