glob like fuction to list all files in subfolders that match wildcard.

[enricong]

Basically want something similar to the python glob command.

glob("*/abc*.dat")

would search the first level of subfolders and give me string list of file paths for all files (from cwd) starting with "abc" ending with ".dat"

Is there a quick similar QT function?

[jefftee]

Check out QDir, specifically QDir::entryList or QDir::entryInfoList, QDir::setNameFilters depending on your needs.

[enricong]

I tried that but unless I am doing something wrong, I can't get it to list files in subfolders

If my folder structure is:
folder1/abc1.txt
folder1/xyz1.txt
folder1/abc2.txt
folder2/abc3.txt
folder2/xyz4.txt
folder3/abc5.txt


then if I give "*/abc*"
I'm looking for an output of
folder1/abc1.txt
folder1/abc2.txt
folder2/abc3.txt
folder3/abc5.txt


I tried entrylist but it just lets me filter on whats in the current folder

[jefftee]

I tried that but unless I am doing something wrong, I can't get it to list files in subfolders

What filter(s) are you specifying for QDir::entryList or QDir::entryInfoList?

The entryInfoList and entryInfo methods only operate on the directory path represented by the QDir variable instance. If you want to process sub-directories, you need to ask to receive directory entries *and* files and recurse into the sub-directories as well.

I'd suggest something like this (I have not compiled or tested this, it's only from memory):

void process_dir(const QString &path)
{
    QDir dir(path);
    QStringList name_filters;
    name_filters << "abc*";
    QFileInfoList fil = dir.entryInfoList(name_filters, QDir::NoDotAndDotDot|QDir::AllDirs|QDir::Files);
    for (int i = 0; i < fil.size(); i++)
    {
        QFileInfo fi = fil.at(i);
        if (fi.isDir())
            process_dir(fi.absolutePath());
        if (fi.isFile())
            do_something_with_file(fi);
    }
    return;
}

void process_dir(const QString &path)
{
    QDir dir(path);
    QStringList name_filters;
    name_filters << "abc*";
    QFileInfoList fil = dir.entryInfoList(name_filters, QDir::NoDotAndDotDot|QDir::AllDirs|QDir::Files);
    for (int i = 0; i < fil.size(); i++)
    {
        QFileInfo fi = fil.at(i);
        if (fi.isDir())
            process_dir(fi.absolutePath());
        if (fi.isFile())
            do_something_with_file(fi);
    }
    return;
}

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