CODEWITHSUNDEEP
qtqurl
Denis Rouzaud
Denis Rouzaud

Reputation: 2600

Make the difference between a file path and a url in Qt

If I have a string which could be either a file or a URL, is there any existing clever method I could use to differentiate them?

For instance:

This is to load a designer UI file, so I need to make a local temporary copy of the remote file. So the bottom line is to know when I need to download the file.

Upvotes: 2

Views: 2280

Answers (2)

vahancho
vahancho

Reputation: 21230

Well, you might want to construct a QUrl object out of these strings and verify whether these URLs refer to local files. I.e.:

static bool isLocalFile(const QString &str)
{
    return QUrl::fromUserInput(str).isLocalFile();
}

With your strings 

QString s1("/Users/user/Documents/mydoc.txt");
QString s2("c:\\Program Files\\myapp\\mydoc.doc");
QString s3("https://mywebsite.com/mydoc.txt");
QString s4("ftp://myserver.com/myfile.txt");

bool b = isLocalFile(s1); // a path
b = isLocalFile(s2); // a path
b = isLocalFile(s3); // not a path
b = isLocalFile(s4); // not a path

Upvotes: 5

Bearded Beaver
Bearded Beaver

Reputation: 656

You could create a QFile with the given name and check if it exists(). If not try to resolve string as a URL.

Upvotes: 1

Related Questions