1.1 Introduction

This plugin allows Hollywood scripts to open archives using the XAD system. The XAD system is a toolkit designed for handling various file and disk archiver formats. It consists of a master library and a number of XAD clients for handling different file and disk archiver formats. By default, the XAD system already supports many common archiver formats like ZIP, LhA, LZX, CAB, bzip2, TAR, and RAR, which makes it a powerful tool for people that have to deal with compressed data a lot.

The XAD system has its origins on the Amiga platform for which it was originally developed by Dirk Stoecker in the 1990s. That's why all versions of xad.hwp for AmigaOS and compatibles still use the xadmaster.library provided by the host system. Both AmigaOS 4 and MorphOS come with xadmaster.library installed. For AmigaOS 3 and AROS xadmaster.library is available as third-party software. On all other platforms, xad.hwp uses an open-source version of the XAD system.

The XAD plugin uses Hollywood 6.0's new file and directory adapter plugin interfaces which allow you to iterate through file archives supported by the XAD system as if they were normal directories. Files within archives supported by the XAD system can also be accessed as if the archive was a normal directory. It is not necessary to unpack a file stored in an archive to a temporary file before it can be opened. Hollywood 6.0's file adapter plugin interface allows direct streaming from the archive into the respective file handler.

Additionally, xad.hwp offers a range of functions to deal with archives supported by the XAD system for people needing fine-tuned control over the XAD system. These functions allow you to conveniently iterate over all files and directories in an archive, read file attributes like date, protection bits, compression details, etc. and extract files to an external or virtual file.

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