C#

Iterate Through Matching ZIP Entries Using EntryMatching and ZipEntry.GetNextMatch

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This example demonstrates how to iterate through ZIP entries matching a wildcard pattern using:

• Zip.EntryMatching to obtain the first matching entry
• ZipEntry.GetNextMatch to advance to subsequent matching entries

The wildcard character * matches zero or more characters. Matching is performed against the full stored ZIP entry path.

The example searches for all entries beneath the docs/ directory.

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
docs/sub1/notes.txt
images/logo.png
hello.txt

The wildcard pattern:

docs/*

Matches:

docs/
docs/readme.txt
docs/manual.pdf
docs/sub1/notes.txt

Note that ZIP archives may optionally contain separate directory entries. Therefore, the first matching entry may be the directory entry docs/ rather than a file entry.

C#

bool success = false;

Chilkat.Zip zip = new Chilkat.Zip();

//  Open an existing ZIP archive.
success = zip.OpenZip("c:/temp/sample.zip");
if (success == false) {
    Debug.WriteLine(zip.LastErrorText);
    return;
}

//  ------------------------------------------------------------
//  Find the first ZIP entry matching the wildcard pattern:
//  
//      docs/*
//  
//  Matching is performed against the full stored ZIP path.
//  
Chilkat.ZipEntry entry = new Chilkat.ZipEntry();

success = zip.EntryMatching("docs/*",entry);
if (success == false) {
    Debug.WriteLine("No matching entries found.");
    zip.CloseZip();
    return;
}

//  ------------------------------------------------------------
//  Iterate through all matching entries.
//  
//  GetNextMatch updates the same ZipEntry object so that
//  it represents the next matching entry.
//  
while ((success == true)) {
    if (entry.IsDirectory == true) {
        Debug.WriteLine("[Directory] " + entry.FileName);
    }
    else {
        Debug.WriteLine("[File] " + entry.FileName);
    }

    //  Advance to the next matching entry.
    success = entry.GetNextMatch("docs/*");
}

zip.CloseZip();

Debug.WriteLine("Done.");