/*
* Copyright 2007 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using BarcodeFormat = com.google.zxing.BarcodeFormat;
using Result = com.google.zxing.Result;
using UPCEReader = com.google.zxing.oned.UPCEReader;
namespace com.google.zxing.client.result
{
/// Parses strings of digits that represent a UPC code.
///
///
/// dswitkin@google.com (Daniel Switkin)
///
/// www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
///
sealed class ProductResultParser:ResultParser
{
private ProductResultParser()
{
}
// Treat all UPC and EAN variants as UPCs, in the sense that they are all product barcodes.
public static ProductParsedResult parse(Result result)
{
BarcodeFormat format = result.BarcodeFormat;
if (!(BarcodeFormat.UPC_A.Equals(format) || BarcodeFormat.UPC_E.Equals(format) || BarcodeFormat.EAN_8.Equals(format) || BarcodeFormat.EAN_13.Equals(format)))
{
return null;
}
// Really neither of these should happen:
System.String rawText = result.Text;
if (rawText == null)
{
return null;
}
int length = rawText.Length;
for (int x = 0; x < length; x++)
{
char c = rawText[x];
if (c < '0' || c > '9')
{
return null;
}
}
// Not actually checking the checksum again here
System.String normalizedProductID;
// Expand UPC-E for purposes of searching
if (BarcodeFormat.UPC_E.Equals(format))
{
normalizedProductID = UPCEReader.convertUPCEtoUPCA(rawText);
}
else
{
normalizedProductID = rawText;
}
return new ProductParsedResult(rawText, normalizedProductID);
}
}
}