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8e3615881c
git-svn-id: https://zxing.googlecode.com/svn/trunk@1387 59b500cc-1b3d-0410-9834-0bbf25fbcc57
115 lines
3.5 KiB
Objective-C
115 lines
3.5 KiB
Objective-C
//
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// DoCoMoResultParser.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 "DoCoMoResultParser.h"
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@implementation NSString (DoCoMoFieldParsing)
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- (NSString *)backslashUnescaped {
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NSRange backslashRange = [self rangeOfString:@"\\"];
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if (backslashRange.location == NSNotFound) {
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return self;
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}
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int max = [self length];
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int startLocation = 0;
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NSMutableString *result = [NSMutableString stringWithCapacity:[self length]];
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while (backslashRange.location != NSNotFound) {
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[result appendString:[self substringWithRange:NSMakeRange(startLocation,
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backslashRange.location - startLocation)]];
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[result appendFormat:@"%c", [self characterAtIndex:backslashRange.location + 1]];
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startLocation = backslashRange.location + 2;
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NSRange searchRange = NSMakeRange(startLocation, max - startLocation);
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backslashRange = [self rangeOfString:@"\\" options:0 range:searchRange];
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}
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if (startLocation < max) {
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[result appendString:[self substringWithRange:NSMakeRange(startLocation, max - startLocation)]];
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}
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return [NSString stringWithString:result];
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}
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- (NSArray *)fieldsWithPrefix:(NSString *)prefix {
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return [self fieldsWithPrefix:prefix terminator:@";"];
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}
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- (NSArray *)fieldsWithPrefix:(NSString *)prefix terminator:(NSString *)term {
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NSMutableArray *result = nil;
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int i = 0;
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int max = [self length];
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NSRange searchRange;
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NSRange foundRange;
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while (i < max) {
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searchRange = NSMakeRange(i, max - i);
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foundRange = [self rangeOfString:prefix options:0 range:searchRange];
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if(foundRange.location == NSNotFound) {
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break;
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}
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int start = i = foundRange.location + foundRange.length;
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bool done = false;
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while (!done) {
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searchRange = NSMakeRange(i, max - i);
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NSRange termRange = [self rangeOfString:term options:0 range:searchRange];
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if (termRange.location == NSNotFound) {
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i = max;
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done = true;
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} else if ([self characterAtIndex:termRange.location-1] == (unichar)'\\') {
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i++;
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} else {
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NSString *substring = [self substringWithRange:NSMakeRange(start, termRange.location - start)];
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NSString *unescaped = [substring backslashUnescaped];
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if (result == nil) {
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result = [NSMutableArray arrayWithObject:unescaped];
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} else {
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[result addObject:unescaped];
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}
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i = termRange.location + termRange.length;
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done = true;
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}
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}
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}
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return result;
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}
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- (NSString *)fieldWithPrefix:(NSString *)prefix {
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return [self fieldWithPrefix:prefix terminator:@";"];
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}
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- (NSString *)fieldWithPrefix:(NSString *)prefix terminator:(NSString *)term {
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NSArray *fields = [self fieldsWithPrefix:prefix terminator:term];
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if (fields.count == 0) {
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return nil;
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} else {
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return [fields lastObject];
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}
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}
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@end
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@implementation DoCoMoResultParser
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@end
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