iOS学习－－－－－－－－－－正则表达式

来源：互联网发布：ismo软件编辑：程序博客网时间：2024/06/10 10:28

首先使用系统的方法

1、匹配手机号

//匹配电话

NSString*phone = @"13562646222";

NSRegularExpression*regexPhone = [NSRegularExpressionregularExpressionWithPattern:@"1[358]\\d{9}$"options:NSRegularExpressionCaseInsensitiveerror:nil];

NSArray*matcher = [regex matchesInString:stroptions:NSMatchingReportCompletionrange:NSMakeRange(0, str.length)];

2、匹配数组中保存的时匹配结果可能有多个匹配结果

   NSString*qqStr = @"234234243";
    //匹配qq
    NSRegularExpression *regexQQ = [NSRegularExpressionregularExpressionWithPattern:@"[0-9]{5-6}"options:NSRegularExpressionCaseInsensitiveerror:nil];
    NSArray *matcherQQ = [regexQQ matchesInString:qqStroptions:NSMatchingReportCompletionrange:NSMakeRange(0, qqStr.length)];
    if (matcherQQ.count&& qqStr) {
        NSLog(@"");
    } else {
        NSLog(@"");

}

3、匹配文字和表情

   /*
     ? 0或者1个
     * 0或者多个
     + 1个或者多个
     */
    NSString*text = @"aasdfadsf[马到成功]asdfadsf";

    NSRegularExpression *regexText = [NSRegularExpressionregularExpressionWithPattern:@"\\[[a-zA-Z0-9\\u4e00-\\u9fa5]+\\]"options:NSRegularExpressionCaseInsensitiveerror:nil];
    NSArray *matcherText = [regexText matchesInString:textoptions:NSMatchingReportCompletionrange:NSMakeRange(0, text.length)];

    if (matcherText.count) {
        for (NSTextCheckingResult*resultin matcherText) {
            NSLog(@"%@---%@",NSStringFromRange(result.range),[textsubstringWithRange:result.range]);
        }
    } else {
        NSLog(@"匹配失败");

}

4、第三方的正则匹配需要导入libicucore.dylib 框架

并修改为 -fno-objc-arc

    NSString *str = @"asdffdfaddf[asd]adsfsdf[asdf]a";


    NSString *regex = @"\\[[a-zA-Z0-9\\u4e00-\\u9fa5]+\\]";

    //匹配方法
    [str enumerateStringsMatchedByRegex:regexusingBlock:^(NSIntegercaptureCount,NSString *const__unsafe_unretained*capturedStrings, const NSRange *capturedRanges, volatile BOOL *conststop) {

        NSLog(@"%@ %@",*capturedStrings,NSStringFromRange(*capturedRanges));

    }];


    //将正则匹配出来的字符串作为切割符
    [str enumerateStringsSeparatedByRegex:regexusingBlock:^(NSIntegercaptureCount,NSString *const__unsafe_unretained*capturedStrings, const NSRange *capturedRanges, volatile BOOL *conststop) {
        NSLog(@"%@ %@",*capturedStrings,NSStringFromRange(*capturedRanges));
    }];

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