std.zip - D Programming Language - Digital Mars

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Last update Wed Aug 1 09:43:33 2012

# std.zip

Read/write data in the zip archive format. Makes use of the etc.c.zlib compression library.

BUGS:

- Multi-disk zips not supported.
- Only Zip version 20 formats are supported.
- Only supports compression modes 0 (no compression) and 8 (deflate).
- Does not support encryption.
- Bugzilla 592
- Bugzilla 1832
- Bugzilla 2137
- Bugzilla 2138

License:
Boost License 1.0.

Authors:
Walter Bright

Source:
std/zip.d

class ZipException: object.Exception;
  Thrown on error.

class ArchiveMember;
  A member of the ZipArchive.

  ushort madeVersion;
    Read Only

  ushort extractVersion;
    Read Only

  ushort flags;
    Read/Write: normally set to 0

  ushort compressionMethod;
    Read/Write: 0 for compression, 8 for deflate

  std.datetime.DosFileTime time;
    Read/Write: Last modified time of the member. It's in the DOS date/time format.

  uint crc32;
    Read Only: cyclic redundancy check (CRC) value

  uint compressedSize;
    Read Only: size of data of member in compressed form.

  uint expandedSize;
    Read Only: size of data of member in expanded form.

  ushort diskNumber;
    Read Only: should be 0.

  ushort internalAttributes;
    Read/Write

  uint externalAttributes;
    Read/Write

  string name;
    Read/Write: Usually the file name of the archive member; it is used to index the archive directory for the member. Each member must have a unique name[]. Do not change without removing member from the directory first.

  ubyte[] extra;
    Read/Write: extra data for this member.

  string comment;
    Read/Write: comment associated with this member.

  ubyte[] compressedData;
    Read Only: data of member in compressed form.

  ubyte[] expandedData;
    Read/Write: data of member in uncompressed form.

class ZipArchive;
  Object representing the entire archive. ZipArchives are collections of ArchiveMembers.

  ubyte[] data;
    Read Only: array representing the entire contents of the archive.

  uint diskNumber;
    Read Only: 0 since multi-disk zip archives are not supported.

  uint diskStartDir;
    Read Only: 0 since multi-disk zip archives are not supported.

  uint numEntries;
    Read Only: number of ArchiveMembers in the directory.

  uint totalEntries;
    Read Only: same as totalEntries.

  string comment;
    Read/Write: the archive comment. Must be less than 65536 bytes in length.

  ArchiveMember[string] directory;
    Read Only: array indexed by the name of each member of the archive.

    Example:
    All the members of the archive can be accessed with a foreach loop:

         ZipArchive archive = new ZipArchive(data);
         foreach (ArchiveMember am; archive.directory)
         {
             writefln("member name is '%s'", am.name);
         }

  this();
    Constructor to use when creating a new archive.

  void addMember(ArchiveMember de);
    Add de to the archive.

  void deleteMember(ArchiveMember de);
    Delete de from the archive.

  void[] build();
    Construct an archive out of the current members of the archive.

    Fills in the properties data[], diskNumber, diskStartDir, numEntries, totalEntries, and directory[]. For each ArchiveMember, fills in properties crc32, compressedSize, compressedData[].

    Returns:
    array representing the entire archive.

  this(void[] buffer);
    Constructor to use when reading an existing archive.

    Fills in the properties data[], diskNumber, diskStartDir, numEntries, totalEntries, comment[], and directory[]. For each ArchiveMember, fills in properties madeVersion, extractVersion, flags, compressionMethod, time, crc32, compressedSize, expandedSize, compressedData[], diskNumber, internalAttributes, externalAttributes, name[], extra[], comment[]. Use expand() to get the expanded data for each ArchiveMember.

    Parameters:

    void[] buffer | the entire contents of the archive.

  ubyte[] expand(ArchiveMember de);
    Decompress the contents of archive member de and return the expanded data.

    Fills in properties extractVersion, flags, compressionMethod, time, crc32, compressedSize, expandedSize, expandedData[], name[], extra[].

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