重复应用正则表达式

发布于 2024-12-12 09:21:25 字数 1255 浏览 0 评论 0原文

我有这样的文本表达式：

HIUPA:bla1bla1'HIUPD:bla2bla2'HIUPD:bla3bla3'HISYN:bla4bla4'

我想提取以下文本片段：

HIUPD:bla2bla2'

我的 Objective-C 代码如下

HIUPD:bla3bla3'

所示：

-(void) ermittleKonten:(NSString*) bankNachricht
{
    NSRegularExpression* regexp;
    NSTextCheckingResult* tcr;
    regexp = [NSRegularExpression regularExpressionWithPattern:@"HIUPD.*'" options:0 error:nil];

    int numAccounts = [regexp numberOfMatchesInString:bankNachricht options:0 range:NSMakeRange(0, [bankNachricht length])];
    for( int i = 0; i < numAccounts; ++i ) {
        tcr = [regexp firstMatchInString:bankNachricht options:0 range:NSMakeRange( 0, [bankNachricht length] )];
        NSString* HIUPD = [bankNachricht substringWithRange:tcr.range];
        NSLog(@"Found text is:\n%@", HIUPD);
    }
}

在 Objective-C 代码中 numAccounts 是 1，但应该是 2。字符串是发现是“HIUPD：bla2bla2'HIUPD：bla3bla3'HISYN：bla4bla4'”

我用在线工具测试了正则表达式模式（http://www.regexplanet.com/simple/index.html ）。在在线工具中，它运行良好，并提供了我想要的 2 个结果。

但我希望在 ios 代码中得到相同的结果，即“HIUPD:bla2bla2'”和“HIUPD:bla3bla3'”。模式有什么问题？

原文

I've got text expressions like this:

HIUPA:bla1bla1'HIUPD:bla2bla2'HIUPD:bla3bla3'HISYN:bla4bla4'

I want to extract the following text pieces:

HIUPD:bla2bla2'

And

HIUPD:bla3bla3'

My Objective-C code for this looks like this:

-(void) ermittleKonten:(NSString*) bankNachricht
{
    NSRegularExpression* regexp;
    NSTextCheckingResult* tcr;
    regexp = [NSRegularExpression regularExpressionWithPattern:@"HIUPD.*'" options:0 error:nil];

    int numAccounts = [regexp numberOfMatchesInString:bankNachricht options:0 range:NSMakeRange(0, [bankNachricht length])];
    for( int i = 0; i < numAccounts; ++i ) {
        tcr = [regexp firstMatchInString:bankNachricht options:0 range:NSMakeRange( 0, [bankNachricht length] )];
        NSString* HIUPD = [bankNachricht substringWithRange:tcr.range];
        NSLog(@"Found text is:\n%@", HIUPD);
    }
}

In the Objective-C code numAccounts is 1, but should be 2. And the string that is found is "HIUPD:bla2bla2'HIUPD:bla3bla3'HISYN:bla4bla4'"

I tested the regular expression pattern with an online tool ( http://www.regexplanet.com/simple/index.html ). In the online tool it works fine and delivers 2 results as I want it to be.

But I would like to have the same result in the ios code, i.e. "HIUPD:bla2bla2'" and "HIUPD:bla3bla3'". What is wrong with the pattern?

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