From e78ccff9a47bba455b4339f40ddd9991c7256684 Mon Sep 17 00:00:00 2001
From: Thomas Pelletier <pelletier.thomas@gmail.com>
Date: Tue, 23 Mar 2021 09:02:48 -0400
Subject: [PATCH] Fix parsing integer 0

---
 README.md                                      |  2 +-
 .../imported_tests/unmarshal_imported_test.go  |  2 +-
 parser.go                                      | 18 +++++++++++-------
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index 158313c..b077e97 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Development branch. Probably does not work.
 
 - [x] Unmarshal into maps.
 - [x] Support Array Tables.
-- [x] Unmarshal into pointers.  
+- [x] Unmarshal into pointers.
 - [x] Support Date / times.
 - [ ] Support Unmarshaler interface.
 - [x] Support struct tags annotations.
diff --git a/internal/imported_tests/unmarshal_imported_test.go b/internal/imported_tests/unmarshal_imported_test.go
index d970dbb..1ea19c4 100644
--- a/internal/imported_tests/unmarshal_imported_test.go
+++ b/internal/imported_tests/unmarshal_imported_test.go
@@ -439,7 +439,7 @@ func TestEmptytomlUnmarshal(t *testing.T) {
 		String:     "",
 		StringList: []string{},
 		Ptr:        nil,
-		Map:        map[string]string{},
+		Map:        nil,
 	}
 
 	result := emptyMarshalTestStruct{}
diff --git a/parser.go b/parser.go
index 289bb15..ce45e55 100644
--- a/parser.go
+++ b/parser.go
@@ -977,17 +977,21 @@ func (p *parser) scanIntOrFloat(node *ast.Node, b []byte) ([]byte, error) {
 		case 'b':
 			isValidRune = isValidBinaryRune
 		default:
-			return b, fmt.Errorf("unknown number base: %c. possible options are x (hex) o (octal) b (binary)", b[1])
+			i++
 		}
 
-		i += 2
-		for ; i < len(b); i++ {
-			if !isValidRune(b[i]) {
-				node.Kind = ast.Integer
-				node.Data = b[:i]
-				return b[i:], nil
+		if isValidRune != nil {
+			i += 2
+			for ; i < len(b); i++ {
+				if !isValidRune(b[i]) {
+					break
+				}
 			}
 		}
+
+		node.Kind = ast.Integer
+		node.Data = b[:i]
+		return b[i:], nil
 	}
 
 	isFloat := false