= zip =

''Part of'' StandardLibraryCategory


== Description ==

Using the zip compression format in D.


== Instructions ==

You'll need an archive called "test.zip". You can download a test.zip file that I've used (found on [http://jcc_7.tripod.com/d/tutor/library/zip.html this page]). 


== Example ==

{{{
#!d
import std.file;
import std.date;
import std.zip;
import std.zlib;


int main(char[][] args)
{
    byte[] buffer;
    std.zip.ZipArchive zr;
    char[] zipname;
    ubyte[] data;

    testzlib();
    if (args.length > 1) zipname = args[1];
    else zipname = "test.zip";
    buffer = cast(byte[])std.file.read(zipname);
    zr = new std.zip.ZipArchive(cast(void[])buffer);
    printf("comment = '%.*s'\n", zr.comment);
    zr.print();

    foreach (ArchiveMember de; zr.directory)
    {
         de.print();
         printf("date = '%.*s'\n", std.date.toString(std.date.toDtime(de.time)));
        
         arrayPrint(de.compressedData);
        
         data = zr.expand(de);
         printf("data = '%.*s'\n", data);
    }

    printf("**Success**\n");

    zr = new std.zip.ZipArchive();
    ArchiveMember am = new ArchiveMember();
    am.compressionMethod = 8;
    am.name = "foo.bar";
    //am.extra = cast(ubyte[])"ExTrA";

    am.expandedData = cast(ubyte[])"We all live in a yellow submarine, a yellow submarine";
    am.expandedSize = am.expandedData.length;
    zr.addMember(am);
    void[] data2 = zr.build();
    std.file.write("foo.zip", cast(byte[])data2);

    return 0;
}

void arrayPrint(ubyte[] array)
{
    //printf("array %p,%d\n", (void*)array, array.length);

    for (int i = 0; i < array.length; i++)
    {
        printf("%02x ", array[i]);
        if (((i + 1) & 15) == 0)
         printf("\n");
    }
    printf("\n\n");
}

void testzlib()
{
    ubyte[] src = cast(ubyte[])

"the quick brown fox jumps over the lazy dog\r
the quick brown fox jumps over the lazy dog\r
";
    ubyte[] dst;

    arrayPrint(src);
    dst = cast(ubyte[])std.zlib.compress(cast(void[])src);
    arrayPrint(dst);
    src = cast(ubyte[])std.zlib.uncompress(cast(void[])dst);
    arrayPrint(src);
}
}}}


== Source ==

Based on [http://www.digitalmars.com/pnews/read.php?server=news.digitalmars.com&group=D&artnum=20379 D:20379] by Walter.