72 lines
1.2 KiB
Go
72 lines
1.2 KiB
Go
package main
|
|
|
|
import (
|
|
"bufio"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
)
|
|
|
|
func getCommands() map[string]cliCommand {
|
|
return map[string]cliCommand{
|
|
"exit": {
|
|
name: "exit",
|
|
description: "Exit the pokedex",
|
|
callback: commandExit,
|
|
},
|
|
"help": {
|
|
name: "help",
|
|
description: "Displays a help message",
|
|
callback: commandHelp,
|
|
},
|
|
"map": {
|
|
name: "map",
|
|
description: "Displays the names of the next 20 locations",
|
|
},
|
|
"mapb": {
|
|
name: "mapb",
|
|
description: "Displays the names of the previous 20 locations",
|
|
},
|
|
}
|
|
}
|
|
|
|
func startRepl() {
|
|
reader := bufio.NewScanner(os.Stdin)
|
|
for {
|
|
fmt.Print(prompt)
|
|
reader.Scan()
|
|
|
|
words := cleanInput(reader.Text())
|
|
if len(words) == 0 {
|
|
continue
|
|
}
|
|
|
|
inputCommand := words[0]
|
|
command, exists := getCommands()[inputCommand]
|
|
|
|
if exists {
|
|
err := command.callback()
|
|
if err != nil {
|
|
fmt.Printf("%v error: %v", command.name, err.Error())
|
|
}
|
|
} else {
|
|
|
|
fmt.Println("Unknown command")
|
|
continue
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
type cliCommand struct {
|
|
name string
|
|
description string
|
|
callback func() error
|
|
}
|
|
|
|
func cleanInput(text string) []string {
|
|
input := strings.ToLower(text)
|
|
words := strings.Fields(input)
|
|
return words
|
|
}
|