Perl Requires Chilkat v11.0.0+

Find ZIP Entries Matching a Wildcard Pattern Using EntryMatching

See more Zip Examples

This example demonstrates how to use the EntryMatching method to find ZIP entries whose stored paths match a wildcard pattern.

The wildcard character * matches zero or more characters. The comparison is performed against the full stored path within the ZIP archive.

This method is useful for:

• Finding files having a particular extension
• Locating files within specific subdirectories
• Searching ZIP archives without manually iterating through every entry

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
images/banner.jpg
data/config/settings.json

Notice that the ZIP archive contains an explicit directory entry named docs/. ZIP archives may optionally contain separate directory entries in addition to file entries.

When searching with the pattern docs/*, the first matching entry could therefore be the directory entry docs/ rather than a file contained within that directory.

The example searches for:

• The first .png file
• The first entry beneath the docs directory
• The first JSON file anywhere within the ZIP archive

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

# Open an existing ZIP archive.
my $zip = Chilkat2::Zip->new;

my $success = $zip->OpenZip('example.zip');
if (!$success) {
    print $zip->LastErrorText, "\n";
    exit;
}

my $entry = Chilkat2::ZipEntry->new;

# ------------------------------------------------------------
# Find the first .png file in the ZIP archive.

$success = $zip->EntryMatching('*.png', $entry);

if ($success) {
    print "Found PNG file:\n";
    print '  ', $entry->FileName, "\n";
    print "\n";
}

# ------------------------------------------------------------
# Find the first entry beneath the docs directory.
#
# Note: ZIP archives may optionally contain explicit directory
# entries such as "docs/" in addition to file entries.
# Therefore, the first matching entry could be the directory
# itself rather than a file contained within the directory.

$success = $zip->EntryMatching('docs/*', $entry);

if ($success) {
    print "First matching docs entry:\n";
    print '  ', $entry->FileName, "\n";
    print '  IsDirectory = ', ($entry->IsDirectory ? 1 : 0), "\n";
    print "\n";
}

# ------------------------------------------------------------
# Find the first JSON file anywhere in the ZIP archive.

$success = $zip->EntryMatching('*.json', $entry);

if ($success) {
    print "Found JSON file:\n";
    print '  ', $entry->FileName, "\n";
    print "\n";
}

# ------------------------------------------------------------
# The matching is performed against the full stored ZIP path.
# For example:
#
#     docs/readme.txt
#     images/logo.png
#     data/config/settings.json
#
# The wildcard '*' matches zero or more characters.

$zip->CloseZip();

print "Done.\n";