(JavaScript) Iterate Through Matching ZIP Entries Using EntryMatching and ZipEntry.GetNextMatch

See more Zip Examples

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.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

var zip = new CkZip();

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

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

success = zip.EntryMatching("docs/*",entry);
if (success == false) {
    console.log("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) {
        console.log("[Directory] " + entry.FileName);
    }
    else {
        console.log("[File] " + entry.FileName);
    }

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

zip.CloseZip();

console.log("Done.");