Add initial main func

main.go

+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/Dparker1990/dbg/command"
+)
+
+type term struct {
+	stdin *bufio.Reader
+}
+
+func main() {
+	var (
+		t    = newTerm()
+		cmds = command.DebugCommands()
+	)
+
+	for {
+		cmdstr, err := t.promptForInput()
+		if err != nil {
+			fmt.Fprint(os.Stderr, "Prompt for input failed.")
+			os.Exit(1)
+		}
+
+		cmd := cmds.Find(cmdstr)
+		err = cmd()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Command failed: %s\n", err)
+		}
+	}
+}
+
+func newTerm() *term {
+	return &term{
+		stdin: bufio.NewReader(os.Stdin),
+	}
+}
+
+func (t *term) promptForInput() (string, error) {
+	fmt.Print("dbg> ")
+
+	line, err := t.stdin.ReadString('\n')
+	if err != nil {
+		return "", err
+	}
+
+	return stripNewLine(line), nil
+}
+
+func stripNewLine(s string) string {
+	return strings.TrimSuffix(s, "\n")
+}