Zig

Iterate Through Matching ZIP Entries Using EntryMatching and ZipEntry.GetNextMatch

See more Zip Examples

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.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    var success: bool = false;

    const zip = try chilkat.Zip.init();
    defer zip.deinit();

    // Open an existing ZIP archive.
    success = if (zip.openZip("c:/temp/sample.zip")) true else |_| false;
    if (!success) {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    }

    // ------------------------------------------------------------
    // Find the first ZIP entry matching the wildcard pattern:
    //
    //     docs/*
    //
    // Matching is performed against the full stored ZIP path.
    //
    const entry = try chilkat.ZipEntry.init();
    defer entry.deinit();

    success = if (zip.entryMatching("docs/*", entry)) true else |_| false;
    if (!success) {
        std.debug.print("No matching entries found.\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) {
        if (entry.getIsDirectory()) {
            std.debug.print("[Directory] {s}\n", .{try entry.getFileName(alloc)});
        } else {
            std.debug.print("[File] {s}\n", .{try entry.getFileName(alloc)});
        }

        // Advance to the next matching entry.
        success = if (entry.getNextMatch("docs/*")) true else |_| false;
    }

    zip.closeZip();

    std.debug.print("Done.\n", .{});
}