JMS #4: Kinda parsing flags now

cli.go

@@ -1,7 +1,7 @@
 package cli
 
+import "fmt"
 import "os"
-import "flag"
 
 // The name of the program. Defaults to os.Args[0]
 var Name = os.Args[0]
@@ -21,6 +21,10 @@ var Flags []Flag
 var Action = ShowHelp
 
 func Run(args []string) {
+
+  set := flagSet(Flags)
+  set.Parse(args[1:])
+
 	context := Context{}
 	if len(args) > 1 {
 		name := args[1]
@@ -42,7 +46,7 @@ type Command struct {
 	Usage       string
 	Description string
 	Action      Handler
-	Flags       flag.FlagSet
+	Flags       []Flag
 }
 
 type Context struct {

flag.go

@@ -1,9 +1,11 @@
 package cli
 
 import "fmt"
+import "flag"
 
 type Flag interface {
   fmt.Stringer
+  Apply(*flag.FlagSet)
 }
 
 type BoolFlag struct {
@@ -21,6 +23,22 @@ func (f StringFlag) String() string {
   return fmt.Sprintf("--%v 'string'\t%v", f.Name, f.Usage)
 }
 
+func (f StringFlag) Apply(set *flag.FlagSet) {
+  set.String(f.Name, f.Value, f.Usage)
+}
+
 func (f BoolFlag) String() string {
   return fmt.Sprintf("--%v\t%v", f.Name, f.Usage)
 }
+
+func (f BoolFlag) Apply(set *flag.FlagSet) {
+  set.Bool(f.Name, false, f.Usage)
+}
+
+func flagSet(flags []Flag) *flag.FlagSet {
+  set := flag.NewFlagSet("set", flag.PanicOnError)
+  for _, f := range flags {
+    f.Apply(set)
+  }
+  return set
+}