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++

#include <CkZip.h>
#include <CkZipEntry.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkZip zip;

    // Open an existing ZIP archive.
    success = zip.OpenZip("c:/temp/sample.zip");
    if (success == false) {
        std::cout << zip.lastErrorText() << "\r\n";
        return;
    }

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

    success = zip.EntryMatching("docs/*",entry);
    if (success == false) {
        std::cout << "No matching entries found." << "\r\n";
        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.get_IsDirectory() == true) {
            std::cout << "[Directory] " << entry.fileName() << "\r\n";
        }
        else {
            std::cout << "[File] " << entry.fileName() << "\r\n";
        }

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

    zip.CloseZip();

    std::cout << "Done." << "\r\n";
    }