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 <C_CkZip.h>
#include <C_CkZipEntry.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkZip zip;
    HCkZipEntry entry;

    success = FALSE;

    zip = CkZip_Create();

    //  Open an existing ZIP archive.
    success = CkZip_OpenZip(zip,"c:/temp/sample.zip");
    if (success == FALSE) {
        printf("%s\n",CkZip_lastErrorText(zip));
        CkZip_Dispose(zip);
        return;
    }

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

    success = CkZip_EntryMatching(zip,"docs/*",entry);
    if (success == FALSE) {
        printf("No matching entries found.\n");
        CkZip_CloseZip(zip);
        CkZip_Dispose(zip);
        CkZipEntry_Dispose(entry);
        return;
    }

    //  ------------------------------------------------------------
    //  Iterate through all matching entries.
    //  
    //  GetNextMatch updates the same ZipEntry object so that
    //  it represents the next matching entry.
    //  
    while ((success == TRUE)) {
        if (CkZipEntry_getIsDirectory(entry) == TRUE) {
            printf("[Directory] %s\n",CkZipEntry_fileName(entry));
        }
        else {
            printf("[File] %s\n",CkZipEntry_fileName(entry));
        }

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

    CkZip_CloseZip(zip);

    printf("Done.\n");


    CkZip_Dispose(zip);
    CkZipEntry_Dispose(entry);

    }