How do I use comma-separated-values received from a URL query in Objective-c? when I query the URL I get csv such as ("OMRUAH=X",20.741,"3/16/2010","1:52pm",20.7226,20.7594). How do I capture and use this for my application?
如何使用从Objective-c中的URL查询接收的逗号分隔值？当我查询URL时，我得到csv，如（“OMRUAH = X”，20.741，“3/16/2010”，“1:52 pm”，20.7226,20.7594）。如何捕获并将其用于我的应用程序？
2 个解决方案
#1
0
You have two options:
你有两个选择：
Use a CSV parser: http://freshmeat.net/projects/ccsvparse
使用CSV解析器：http：//freshmeat.net/projects/ccsvparse
Or parse the data yourself into an array:
或者将数据自己解析为数组：
// myString is an NSString object containing your data
NSArray *array = [myString componentsSeparatedByString: @","];
#2
0
I recently dealt with CSV parsing for Yahoo! Finance as well. I used Ragel to write a parser in C that was good enough for the CSV I was getting. It handled everything but escaped quotes, which are not going to show up much in stock quotes. It was pretty painless and a good learning experience. I'd post the code, but it was work-for-hire, so I don't own it.
我最近处理了Yahoo!的CSV解析财务也是如此。我用Ragel在C中编写了一个解析器，它对于我得到的CSV来说已经足够了。它处理了一切但是没有报价的报价，这些报价不会出现太多的股票报价。这是非常轻松和良好的学习经验。我发布了代码，但它是出租工作，所以我不拥有它。
Turning a C string into an NSString is easy. If you have it as an NSData, as you likely do at the end of a URL download, just do [[NSString alloc] initWithData:csvData encoding:NSUTF8StringEncoding]. If you have a pointer to a character buffer instead, use [[NSString alloc] initWithBytes:buffer length:buflen encoding:NSUTF8StringEncoding]. buflen could be strlen(buffer) if buffer is a normal, NUL-terminated C string.
将C字符串转换为NSString很容易。如果您将它作为NSData，就像您在URL下载结束时那样，只需执行[[NSString alloc] initWithData：csvData encoding：NSUTF8StringEncoding]。如果你有一个指向字符缓冲区的指针，请使用[[NSString alloc] initWithBytes：buffer length：buflen encoding：NSUTF8StringEncoding]。如果缓冲区是正常的，NUL终止的C字符串，则buflen可以是strlen（缓冲区）。
#1
0
You have two options:
你有两个选择：
Use a CSV parser: http://freshmeat.net/projects/ccsvparse
使用CSV解析器：http：//freshmeat.net/projects/ccsvparse
Or parse the data yourself into an array:
或者将数据自己解析为数组：
// myString is an NSString object containing your data
NSArray *array = [myString componentsSeparatedByString: @","];
#2
0
I recently dealt with CSV parsing for Yahoo! Finance as well. I used Ragel to write a parser in C that was good enough for the CSV I was getting. It handled everything but escaped quotes, which are not going to show up much in stock quotes. It was pretty painless and a good learning experience. I'd post the code, but it was work-for-hire, so I don't own it.
我最近处理了Yahoo!的CSV解析财务也是如此。我用Ragel在C中编写了一个解析器，它对于我得到的CSV来说已经足够了。它处理了一切但是没有报价的报价，这些报价不会出现太多的股票报价。这是非常轻松和良好的学习经验。我发布了代码，但它是出租工作，所以我不拥有它。
Turning a C string into an NSString is easy. If you have it as an NSData, as you likely do at the end of a URL download, just do [[NSString alloc] initWithData:csvData encoding:NSUTF8StringEncoding]. If you have a pointer to a character buffer instead, use [[NSString alloc] initWithBytes:buffer length:buflen encoding:NSUTF8StringEncoding]. buflen could be strlen(buffer) if buffer is a normal, NUL-terminated C string.
将C字符串转换为NSString很容易。如果您将它作为NSData，就像您在URL下载结束时那样，只需执行[[NSString alloc] initWithData：csvData encoding：NSUTF8StringEncoding]。如果你有一个指向字符缓冲区的指针，请使用[[NSString alloc] initWithBytes：buffer length：buflen encoding：NSUTF8StringEncoding]。如果缓冲区是正常的，NUL终止的C字符串，则buflen可以是strlen（缓冲区）。