Added escape characters util.

ec/run.go

@@ -0,0 +1,52 @@
+package ec
+
+import(
+	"fmt"
+	"io"
+	"os"
+	"bufio"
+	"log"
+)
+
+const(
+	esc = '\\'
+)
+
+var(
+	CharMap = map[string]string{
+		"n":"\n",
+		"b":"\b",
+		"r":"\r",
+	}
+)
+
+func
+handleEscChar(rd *bufio.Reader) error {
+	r, _, e := rd.ReadRune()
+	if e != nil {
+		return e
+	}
+	fmt.Print(CharMap[string(r)])
+	return nil
+}
+
+func
+Run(args []string) int {
+	rd := bufio.NewReader(os.Stdin)
+	for {
+		r, _, e := rd.ReadRune()
+		if e == io.EOF {
+			break;
+		} else if e != nil {
+			log.Fatal(e)
+		}
+
+		
+		if r == esc {
+			handleEscChar(rd)
+		} else {
+			fmt.Print(string(r))
+		}
+	}
+	return 0
+}

main.go

@@ -20,6 +20,7 @@ import(
 	"goblin/noext"
 	"goblin/mergelbl"
 	"goblin/basename"
+	"goblin/ec"
 )
 
 func main() {
@@ -46,6 +47,7 @@ func main() {
 		"urlprs" : urlprs.Run,
 		"noext" : noext.Run,
 		"mergelbl" : mergelbl.Run,
+		"ec" : ec.Run,
 	}
 
 	if binBase := path.Base(os.Args[0]) ; binBase != "goblin" {