Go

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.

Go

    success := false

    zip := chilkat.NewZip()

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

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

    success = zip.EntryMatching("docs/*",entry)
    if success == false {
        fmt.Println("No matching entries found.")
        zip.CloseZip()
        zip.DisposeZip()
        entry.DisposeZipEntry()
        return
    }

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

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

    zip.CloseZip()

    fmt.Println("Done.")

    zip.DisposeZip()
    entry.DisposeZipEntry()