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81c1368068
git-svn-id: https://zxing.googlecode.com/svn/trunk@542 59b500cc-1b3d-0410-9834-0bbf25fbcc57
75 lines
2.8 KiB
Objective-C
75 lines
2.8 KiB
Objective-C
//
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// SMSResultParser.m
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// ZXing
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//
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// Created by Christian Brunschen on 25/06/2008.
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/*
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* Copyright 2008 ZXing authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "SMSResultParser.h"
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#import "SMSParsedResult.h"
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#define PREFIX @"sms:"
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@implementation SMSResultParser
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+ (ParsedResult *)parsedResultForString:(NSString *)s {
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NSRange prefixRange = [s rangeOfString:PREFIX options:NSCaseInsensitiveSearch];
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if (prefixRange.location == 0) {
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int max = [s length];
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int restStart = prefixRange.location + prefixRange.length;
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// initial presuption: everything after the prefix is the number, and there is no body
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NSRange numberRange = NSMakeRange(restStart, max - restStart);
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NSRange bodyRange = NSMakeRange(NSNotFound, 0);
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// is there a query string?
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NSRange queryRange = [s rangeOfString:@"?" options:0 range:numberRange];
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if (queryRange.location != NSNotFound) {
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// truncate the number range at the beginning of the query string
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numberRange.length = queryRange.location - numberRange.location;
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int paramsStart = queryRange.location + queryRange.length;
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NSRange paramsRange = NSMakeRange(paramsStart, max - paramsStart);
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NSRange bodyPrefixRange = [s rangeOfString:@"body=" options:0 range:paramsRange];
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if (bodyPrefixRange.location != NSNotFound) {
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int bodyStart = bodyPrefixRange.location + bodyPrefixRange.length;
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bodyRange = NSMakeRange(bodyStart, max - bodyStart);
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NSRange ampRange = [s rangeOfString:@"&" options:0 range:bodyRange];
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if (ampRange.location != NSNotFound) {
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// we found a '&', so we truncate the body range there
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bodyRange.length = ampRange.location - bodyRange.location;
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}
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}
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}
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// if there's a semicolon in the number, truncate the number there
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NSRange semicolonRange = [s rangeOfString:@";" options:0 range:numberRange];
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if (semicolonRange.location != NSNotFound) {
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numberRange.length = semicolonRange.location - numberRange.location;
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}
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NSString *number = [s substringWithRange:numberRange];
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NSString *body = bodyRange.location != NSNotFound ? [s substringWithRange:bodyRange] : nil;
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return [[[SMSParsedResult alloc] initWithNumber:number body:body]
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autorelease];
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}
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return nil;
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}
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@end
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