遞迴搜尋NSString中重複的文本，遞迴nsstring

遞迴搜尋NSString中重複的文本，遞迴nsstring

遞迴搜尋NSString中重複的文本

 

效果

 

源碼

https://github.com/YouXianMing/iOS-Project-Examples 中的 StringRange 項目

////  NSString+Range.h//  NSString////  Created by YouXianMing on 16/5/22.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import <Foundation/Foundation.h>@interface NSString (Range)/** *  Finds and returns the ranges of a given string, within the given range of the receiver. * *  @param searchString searchString. *  @param mask         A mask specifying search options. The following options may be specified by combining them with the C bitwise OR operator: NSCaseInsensitiveSearch, NSLiteralSearch, NSBackwardsSearch, NSAnchoredSearch. See String Programming Guide for details on these options. *  @param range        serachRange. * *  @return Ranges. */- (NSArray <NSValue *> *)rangesOfString:(NSString *)searchString options:(NSStringCompareOptions)mask serachRange:(NSRange)range;@end

////  NSString+Range.m//  NSString////  Created by YouXianMing on 16/5/22.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "NSString+Range.h"@implementation NSString (Range)- (NSArray <NSValue *> *)rangesOfString:(NSString *)searchString options:(NSStringCompareOptions)mask serachRange:(NSRange)range {    NSMutableArray *array = [NSMutableArray array];    [self rangeOfString:searchString range:NSMakeRange(0, self.length) array:array options:mask];        return array;}- (void)rangeOfString:(NSString *)searchString                range:(NSRange)searchRange                array:(NSMutableArray *)array              options:(NSStringCompareOptions)mask {    NSRange range = [self rangeOfString:searchString options:mask range:searchRange];        if (range.location != NSNotFound) {                [array addObject:[NSValue valueWithRange:range]];        [self rangeOfString:searchString                      range:NSMakeRange(range.location + range.length, self.length - (range.location + range.length))                      array:array                    options:mask];    }}@end