Upgraded the paths tool.

src/tool/paths/main.go

@@ -6,22 +6,53 @@ import (
 	"bufio"
 	"os"
 	"github.com/surdeus/goblin/src/pathx"
+	"path"
+	"log"
+	"errors"
 )
 
 var (
+	part string
+	handlers = map[string] func(string) string {
+		"base" : path.Base,
+		"ext" : path.Ext,
+		"dir" : path.Dir,
+		"all" : func(v string) string {return v},
+	}
+	handler func(string) string
+	r bool
+	noPartErr = errors.New("no such part")
 )
 
+
+
 func handlePath(p string) {
+	if handler != nil {
+		p = handler(p)
+	}
+
+	if r {
 		pth := pathx.From(p)
 		fmt.Println(pth.Real())
+	} else {
+		fmt.Println(p)
+	}
 }
 
 func Run(args []string) {
 	arg0 := args[0]
 	args = args[1:]
 	flags := flag.NewFlagSet(arg0, flag.ExitOnError)
+	flags.StringVar(&part, "p", "all", "part of path you want to print")
+	flags.BoolVar(&r, "r", false, "print real OS dependent paths")
+
 	flags.Parse(args)
 	args = flags.Args()
+	lhandler, ok := handlers[part]
+	if !ok {
+		log.Fatal(noPartErr)
+	}
+	handler = lhandler
 
 	for _, p := range args {
 		handlePath(p)