Swift

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.

Swift

func chilkatTest() {
    var success: Bool = false

    let zip = CkoZip()!

    // Open an existing ZIP archive.
    success = zip.open(zipPath: "c:/temp/sample.zip")
    if success == false {
        print("\(zip.lastErrorText!)")
        return
    }

    // ------------------------------------------------------------
    // Find the first ZIP entry matching the wildcard pattern:
    // 
    //     docs/*
    // 
    // Matching is performed against the full stored ZIP path.
    // 
    let entry = CkoZipEntry()!

    success = zip.entry(matching: "docs/*", entry: entry)
    if success == false {
        print("No matching entries found.")
        zip.close()
        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 {
            print("[Directory] \(entry.fileName!)")
        }
        else {
            print("[File] \(entry.fileName!)")
        }

        // Advance to the next matching entry.
        success = entry.getNextMatch(pattern: "docs/*")
    }

    zip.close()

    print("Done.")

}