fix typo in `codebar` constant

@@ -16,7 +16,7 @@ enum BarcodeFormat {
   code93(4),
 
   /// Barcode format constant for Codabar.
-  codebar(8),
+  codabar(8),
 
   /// Barcode format constant for Data Matrix.
   dataMatrix(16),
@@ -45,6 +45,12 @@ enum BarcodeFormat {
   /// Barcode format constant for AZTEC.
   aztec(4096);
 
+  /// This constant represents the old value for [BarcodeFormat.codabar].
+  ///
+  /// Prefer using the new [BarcodeFormat.codabar] constant,
+  /// as the `codebar` value will be removed in a future release.
+  static const BarcodeFormat codebar = codabar;
+
   const BarcodeFormat(this.rawValue);
 
   factory BarcodeFormat.fromRawValue(int value) {

@@ -107,7 +107,7 @@ extension ZXingBarcodeFormat on BarcodeFormat {
     switch (this) {
       case BarcodeFormat.aztec:
         return 0;
-      case BarcodeFormat.codebar:
+      case BarcodeFormat.codabar:
         return 1;
       case BarcodeFormat.code39:
         return 2;

@@ -10,7 +10,7 @@ void main() {
         1: BarcodeFormat.code128,
         2: BarcodeFormat.code39,
         4: BarcodeFormat.code93,
-        8: BarcodeFormat.codebar,
+        8: BarcodeFormat.codabar,
         16: BarcodeFormat.dataMatrix,
         32: BarcodeFormat.ean13,
         64: BarcodeFormat.ean8,
@@ -44,7 +44,7 @@ void main() {
         BarcodeFormat.code128: 1,
         BarcodeFormat.code39: 2,
         BarcodeFormat.code93: 4,
-        BarcodeFormat.codebar: 8,
+        BarcodeFormat.codabar: 8,
         BarcodeFormat.dataMatrix: 16,
         BarcodeFormat.ean13: 32,
         BarcodeFormat.ean8: 64,