快速简易封装歌词文件

月半夜小夜曲.lrc

[ti:月半夜小夜曲]
[ar:李克勤]
[by:TTPod]
[00:01.48]月半小夜曲
[00:05.66]作词：向雪怀
[00:10.66]作曲：河合奈保子
[00:15.63]演唱：李克勤
[00:20.63]
[00:24.56]仍然倚在失眠夜望天边星宿
[00:30.46]仍然听见小提琴如泣似诉再挑逗
[00:36.30]为何只剩一弯月留在我的天空
[00:42.92]这晚以后音讯隔绝
[00:48.29]人如天上的明月是不可拥有
[00:54.26]情如曲过只遗留无可挽救再分别
[01:00.15]为何只是失望填密我的空虚
[01:06.82]这晚夜没有吻别
[01:12.23]仍在说永久想不到是借口
[01:18.40]从未意会要分手
[01:27.42]但我的心每分每刻仍然被她占有
[01:34.25]她似这月儿仍然是不开口
[01:39.12]提琴独奏独奏着明月半倚深秋
[01:45.52]我的牵挂我的渴望  直至以后
[01:51.70]
[02:21.15]仍然倚在失眠夜望天边星宿
[02:27.06]仍然听见小提琴如泣似诉再挑逗
[02:32.97]为何只剩一弯月留在我的天空
[02:39.59]这晚以后音讯隔绝
[02:45.02]人如天上的明月是不可拥有
[02:51.08]情如曲过只遗留无可挽救再分别
[02:56.92]为何只是失望填密我的空虚
[03:03.63]这晚夜没有吻别
[03:08.75]仍在说永久想不到是借口
[03:15.23]从未意会要分手
[03:23.95]但我的心每分每刻仍然被她占有
[03:30.60]她似这月儿仍然是不开口
[03:35.79]提琴独奏独奏着明月半倚深秋
[03:42.26]我的牵挂我的渴望  直至以后
[03:47.86]仍在说永久想不到是借口
[03:54.09]从未意会要分手
[04:02.76]但我的心每分每刻仍然被她占有
[04:09.88]她似这月儿仍然是不开口
[04:14.85]提琴独奏独奏着明月半倚深秋
[04:21.25]我的牵挂我的渴望  直至以后
[04:29.00]
[00:00.001]>>>>>>>>>>>>>!
[00:00.009]
[99:00.000]

分解不用正则表达式,而用for循环折腾你就out了.block遍历以及forin方式都是设计模式中的迭代器模式,效率要比for循环高哦.

YYRegex.h + YYRegex.m

//
//  YYRegex.h
//  AnalysizeSongFile
//
//  Created by yuanyuan on 27/6/14.
//  Copyright (c) 2014年 yuanyuan. All rights reserved.
//

#import <Foundation/Foundation.h>

typedef void(^textCheckingResult)(NSTextCheckingResult *match,NSRange matchRang);

@interface YYRegex : NSObject

#pragma mark -可读属性
@property (nonatomic,strong)NSString *regexString; //正则字符串
@property (nonatomic,strong)NSString *sourceString; //数据源字符串

#pragma mark -只读属性
@property (nonatomic,readonly)NSUInteger numberMatches; //数量的匹配

#pragma mark -类方法
+ (void)string:(NSString *)string pattern:(NSString *)pattern each:(textCheckingResult)block;

+ (NSString *)string:(NSString *)string pattern:(NSString *)pattern replaceTemplate:(NSString *)string;

#pragma mark -实例方法
- (instancetype)initWithSourceString:(NSString *)sourceString regexString:(NSString *)regexString;
- (void)startAnalyse;
- (void)each:(textCheckingResult)block;
- (NSString *)replaceWithTemplateString:(NSString *)string;

@end

//
//  YYRegex.m
//  AnalysizeSongFile
//
//  Created by yuanyuan on 27/6/14.
//  Copyright (c) 2014年 yuanyuan. All rights reserved.
//

#import "YYRegex.h"

@interface YYRegex ()

@property (nonatomic,strong)NSArray *resultArray;
@property (nonatomic,strong)NSRegularExpression *regex;

@end
@implementation YYRegex

- (instancetype)init
{
    return [self initWithSourceString:nil regexString:nil];
}

- (instancetype)initWithSourceString:(NSString *)sourceString regexString:(NSString *)regexString
{
    self = [super init];
    if (self) {
        _sourceString = sourceString;
        _regexString = regexString;
    }
    return self;
}

- (void)startAnalyse
{
    if ([_sourceString length] && [_regexString length])
    {
        // 正则表达式
        _regex = 
        [NSRegularExpression regularExpressionWithPattern:_regexString
                                                  options:NSRegularExpressionCaseInsensitive
                                                    error:nil];
        
        // 执行相关匹配操作
        NSRange range = NSMakeRange(0, [_sourceString length]);
        _resultArray = [_regex matchesInString:_sourceString
                                       options:0
                                         range:range];
        
        // 获取到个数
        _numberMatches = [_resultArray count];
    }
    else
    {
        NSLog(@"亲,请设置需要分析的字符串以及正则表达式");
    }
}

- (void)each:(textCheckingResult)block
{
    if (_resultArray)
    {
        for (NSTextCheckingResult *match in _resultArray)
        {
            block(match, [match range]);
        }
    }
}

- (NSString *)replaceWithTemplateString:(NSString *)string
{
    if (string)
    {
        return [_regex stringByReplacingMatchesInString:_sourceString
                                                options:0
                                                  range:NSMakeRange(0, [_sourceString length])
                                           withTemplate:string];
    }
    else
    {
        return nil;
    }
}

+ (void)string:(NSString *)string pattern:(NSString *)pattern each:(textCheckingResult)block
{
    if ([string length] && [pattern length])
    {
        // 正则表达式
        NSRegularExpression *regex = 
        [NSRegularExpression regularExpressionWithPattern:pattern
                                                  options:NSRegularExpressionCaseInsensitive
                                                    error:nil];
        
        // 执行相关匹配操作
        NSRange range = NSMakeRange(0, [string length]);
        NSArray *matches = [regex matchesInString:string
                                          options:0
                                            range:range];
        
        // 匹配好了
        for (NSTextCheckingResult *match in matches)
        {
            block(match, [match range]);
        }
    }
}

+ (NSString *)string:(NSString *)string
             pattern:(NSString *)pattern
     replaceTemplate:(NSString *)templateString
{
    if ([string length] && [pattern length])
    {
        // 正则表达式
        NSRegularExpression *regex = 
        [NSRegularExpression regularExpressionWithPattern:pattern
                                                  options:NSRegularExpressionCaseInsensitive
                                                    error:nil];
        
        return [regex stringByReplacingMatchesInString:string
                                               options:0
                                                 range:NSMakeRange(0, [string length])
                                          withTemplate:templateString];
    }
    else
    {
        return nil;
    }
}


@end

打印信息如下：

使用相关的controller读取歌词的代码如下：

 //读取歌词
    NSString *str = [NSString stringWithContentsOfFile:BUNDLE_PATH(@"月半小夜曲.lrc") encoding:NSUTF8StringEncoding error:nil];
    
    NSLog(@"%@",str);
    
    //将歌词根据换行符分割成数组
    NSArray *strArray = [str componentsSeparatedByString:@"
"];
    
    //分解歌词
    [strArray enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        
        //初始化一个可变字符串
        __block NSMutableString *tmpStr = [[NSMutableString alloc] initWithString:obj];
        
        //正则表达式匹配出【**:**.**】的位置
        [YYRegex string:tmpStr
                pattern:@"\[..:..\...\]"
                   each:^(NSTextCheckingResult *match, NSRange matchRang) {
                       
                       //获取时间轴
                       NSString *time = [tmpStr substringWithRange:matchRang];
                       
                       //获取歌词文本
                       [tmpStr replaceCharactersInRange:matchRang withString:@""];
                       
                       
                       //打印相关信息
                       NSLog(@"%@ -- > %@",time,tmpStr);
            
                   }];
    }];