QDir和QDirIterator忽略带有非ASCII文件名的文件 [英] QDir and QDirIterator ignore files with non-ASCII filenames

问题描述

以下代码无法注意到其名称中包含非ASCII字符的任何文件（具体为西里尔字符）：

The following code somehow fails to notice any files with non-ASCII characters in their names (Cyrillic characters, specifically):

for (int path = 1; path < argc; path++) {
  QFileInfo fi(argv[path]);
  if (fi.isDir()) {
    QDir dir(argv[path], "", QDir::LocaleAware, QDir::AllEntries);
    qDebug() << dir.entryList();
    QDirIterator it(QString(argv[path]), QDirIterator::Subdirectories);
    while (it.hasNext()) {
      it.next();
      qDebug() << it.fileInfo().absoluteFilePath();
      /* Processing; irrelevant in the context of the question */
    }
  }
}

我在这里做错了什么？我应该如何处理QDir和QDirIterator使他们知道西里尔文件名？

What exactly am I doing wrong here? How should I handle QDir and QDirIterator to make them aware of Cyrillic filenames?

系统区域设置是 en_US.UTF-8 。

更新：在Windows上，一切正常。

Update: On Windows, everything works correctly.

推荐答案

从QApplication本身获取cmd行参数。

Get cmd line parameters out of QApplication itself.

所以

QApplication app(argc, argv);

QStringList args = app.arguments();

for(...)

Qt将正确处理编码。但是这只会修复cmd行上unicode的问题。不知道这是否是您的主要问题。

Qt will handle encoding properly. But that will only fix problems with unicode on cmd line. Not sure if that is your main problem though.

编辑：
fromLocal8Bit（）可能不起作用，因为它不是本地编码，而是utf8。所以从utf8（）将工作在linux和osx（但它不会在Windows上工作）。 On * nuxes它取决于一些环境变量（LS_LANG或某事物）。我猜Qt将所有内容都考虑在内，并将其正确转换。你可以看一下QApplication的构造函数代码，如果你想知道他们在做什么。

fromLocal8Bit() probably doesn't work because it wasn't local encoding, but utf8. So fromUtf8() would work on linux and osx (but it won't work on windows). On *nuxes it depends on some environment variables (LS_LANG or something). I guess Qt takes everything into account and converts it properly. You can look at the constructor code for QApplication if you want to know exactly what they do.

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