阅读Unicode文件C ++ [英] Read Unicode files C++

问题描述

我有一个简单的问题要问。我有一个UTF 16文本文件读取，以FFFE开始。什么是C ++工具来处理这种文件？我只是想读它，过滤一些行，并显示结果。

I have a simple question to ask. I have a UTF 16 text file to read wich starts with FFFE. What are the C++ tools to deal with this kind of file? I just want to read it, filter some lines, and display the result.

看起来很简单，但我只是在使用普通的ascci文件的经验，我很匆忙。我使用VS C ++，但我不想使用托管C ++。

It looks simple, but I just have experience in work with plain ascci files and I'm in the hurry. I'm using VS C++, but I'm not want to work with managed C++.

注意

这里给一个非常简单的例子

Here a put a very simple example

wifstream file; 
file.open("C:\\appLog.txt", ios::in);

wchar_t buffer[2048]; 
file.seekg(2);
file.getline(buffer, bSize-1);

wprintf(L"%s\n", buffer);
file.close();

推荐答案

您可以使用 fgetws ，它读取16位字符。您的文件是小端，字节顺序。由于x86机器也是little-endian，你应该能够处理这个文件没有太多的麻烦。当您想要输出时，请使用 fwprintf 。

You can use fgetws, which reads 16-bit characters. Your file is in little-endian,byte order. Since x86 machines are also little-endian you should be able to handle the file without much trouble. When you want to do output, use fwprintf.

此外，我同意更多的信息可能是有用的。例如，您可能正在使用一个抽象出这些的库。

Also, I agree more information could be useful. For instance, you may be using a library that abstracts away some of this.

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