zxing/iphone/ZXingWidget/Classes/resultParsers/ProductResultParser.mm

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//
// ProductResultParser.m
// ZXing
//
// Ported to Objective-C by George Nachman on 7/7/2011.
/*
* Copyright 2011 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.
*/
#import "ProductResultParser.h"
#import "ProductParsedResult.h"
#import "CBarcodeFormat.h"
#include "../../../../cpp/core/src/zxing/oned/UPCEReader.h"
@implementation ProductResultParser
+ (void)load {
[ResultParser registerResultParserClass:self];
}
+ (ParsedResult *)parsedResultForString:(NSString *)s format:(BarcodeFormat)format {
// Treat all UPC and EAN variants as UPCs, in the sense that they are all
// product barcodes.
if (format != BarcodeFormat_UPC_E &&
format != BarcodeFormat_UPC_A &&
format != BarcodeFormat_EAN_8 &&
format != BarcodeFormat_EAN_13) {
return nil;
}
// Barcode must be all digits.
for (unsigned int i = 0; i < [s length]; i++) {
unichar c = [s characterAtIndex:i];
if (c < '0' || c > '9') {
return nil;
}
}
NSString *normalizedProductID;
// Expand UPC-E for purposes of searching
if (format == BarcodeFormat_UPC_E) {
std::string textStr = std::string([s UTF8String]);
std::string normal = zxing::oned::UPCEReader::convertUPCEtoUPCA(textStr);
normalizedProductID = [NSString stringWithUTF8String:normal.c_str()];
} else {
normalizedProductID = s;
}
return [[[ProductParsedResult alloc] initWithProductID:s
normalizedProductID:normalizedProductID]
autorelease];
}
@end