yeah i should have done this before, i know

session/command_handler.go

@@ -0,0 +1,28 @@
+package session
+
+import "regexp"
+
+type CommandHandler struct {
+	Name        string
+	Description string
+	Parser      *regexp.Regexp
+	Exec        func(args []string, s *Session) error
+}
+
+func NewCommandHandler(name string, expr string, desc string, exec func(args []string, s *Session) error) CommandHandler {
+	return CommandHandler{
+		Name:        name,
+		Description: desc,
+		Parser:      regexp.MustCompile(expr),
+		Exec:        exec,
+	}
+}
+
+func (h *CommandHandler) Parse(line string) (bool, []string) {
+	result := h.Parser.FindStringSubmatch(line)
+	if len(result) == h.Parser.NumSubexp()+1 {
+		return true, result[1:len(result)]
+	} else {
+		return false, nil
+	}
+}