拆分 NSString 保留带引号的子字符串

发布于 2024-11-17 01:53:46 字数 459 浏览 1 评论 0原文

我需要拆分一个用逗号分隔的字符串，同时保留任何带引号的子字符串（也可能有逗号）。

字符串示例：

NSString *str = @"One,Two,\"This is part three, I think\",Four";
for (id item in [str componentsSeparatedByString:@","])
    NSLog(@"%@", item);

这返回：

一二
“
我认为这是第三部分
有
没有

合理

的
来
方法
”四正确的结果（尊重引用的子字符串）应该是：一二“我认为这是第三部分”四

做到这一点，没有重新发明或重写引号感知解析例程？

原文

I need to split up a string which is separated by commas while preserving any quoted substrings (which may have commas too).

String example:

NSString *str = @"One,Two,\"This is part three, I think\",Four";
for (id item in [str componentsSeparatedByString:@","])
    NSLog(@"%@", item);

This returns:

One
Two
"This is part three
I think"
Four

The correct result (respecting quoted substrings) should be:

One
Two
"This is part three, I think"
Four

Is there a reasonable way to do this, without re-inventing or re-writing quote-aware parsing routines?

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陌上青苔 2024-11-24 01:53:46

让我们换个方式来思考这个问题。您拥有的是一个以逗号分隔的字符串，并且您需要字符串中的字段。

有一些代码：

https://github.com/davedelong/CHCSVParser

你会这样做:

NSString *str = @"One,Two,\"This is part three, I think\",Four";
NSArray *lines = [str CSVComponents];
for (NSArray *line in lines) {
  for (NSString *field in line) {
    NSLog(@"field: %@", field);
  }
}

Let's think about this a different way. What you have is a comma-seperated string, and you want the fields in the string.

There's some code for that:

https://github.com/davedelong/CHCSVParser

And you'd do this:

NSString *str = @"One,Two,\"This is part three, I think\",Four";
NSArray *lines = [str CSVComponents];
for (NSArray *line in lines) {
  for (NSString *field in line) {
    NSLog(@"field: %@", field);
  }
}

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