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readline/example/readline-multiline/readline-multiline.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"strings"
+
+	"github.com/chzyer/readline"
+)
+
+func main() {
+	rl, err := readline.NewEx(&readline.Config{
+		Prompt:                 "> ",
+		HistoryFile:            "/tmp/readline-multiline",
+		DisableAutoSaveHistory: true,
+	})
+	if err != nil {
+		panic(err)
+	}
+	defer rl.Close()
+
+	var cmds []string
+	for {
+		line, err := rl.Readline()
+		if err != nil {
+			break
+		}
+		line = strings.TrimSpace(line)
+		if len(line) == 0 {
+			continue
+		}
+		cmds = append(cmds, line)
+		if !strings.HasSuffix(line, ";") {
+			rl.SetPrompt(">>> ")
+			continue
+		}
+		cmd := strings.Join(cmds, " ")
+		cmds = cmds[:0]
+		rl.SetPrompt("> ")
+		rl.SaveHistory(cmd)
+		println(cmd)
+	}
+}