refactoed a bit

alpha.go

@@ -0,0 +1,9 @@
+package rfc3986
+
+import (
+	"github.com/reiver/go-rfc2234"
+)
+
+func IsAlpha(r rune) bool {
+	return rfc2234.IsAlpha(r)
+}

digit.go

@@ -0,0 +1,9 @@
+package rfc3986
+
+import (
+	"github.com/reiver/go-rfc2234"
+)
+
+func IsDigit(r rune) bool {
+	return rfc2234.IsDigit(r)
+}

hexdig.go

@@ -0,0 +1,9 @@
+package rfc3986
+
+import (
+	"github.com/reiver/go-rfc2234"
+)
+
+func IsHexDig(r rune) bool {
+	return rfc2234.IsHexDig(r)
+}

pctencoded.go

@@ -4,7 +4,6 @@ import (
 	"io"
 
 	"github.com/reiver/go-erorr"
-	"github.com/reiver/go-rfc2234"
 )
 
 const pctencodedprefix = '%'
@@ -34,11 +33,11 @@ func HasPrefixPctEncoded(str string) bool {
 		return false
 	}
 
-	if !rfc2234.IsHexDig(str1) {
+	if !IsHexDig(str1) {
 		return false
 	}
 
-	if !rfc2234.IsHexDig(str2) {
+	if !IsHexDig(str2) {
 		return false
 	}
 

unreserved.go

@@ -12,7 +12,7 @@ func IsUnreserved(r rune) bool {
 		return true
 	}
 
-	if rfc2234.IsDigit(r) {
+	if IsDigit(r) {
 		return true
 	}
 

unreserved_test.go

@@ -3,8 +3,6 @@ package rfc3986_test
 import (
 	"testing"
 
-	"github.com/reiver/go-rfc2234"
-
 	"github.com/reiver/go-rfc3986"
 )
 
@@ -25,8 +23,8 @@ func TestIsUnreserved(t *testing.T) {
 			Expected: false,
 		}
 
-		if rfc2234.IsAlpha(r) ||
-		   rfc2234.IsDigit(r) ||
+		if rfc3986.IsAlpha(r) ||
+		   rfc3986.IsDigit(r) ||
 		   '-' == r           ||
 		   '.' == r           ||
 		   '_' == r           ||