SWG - Revision history

Dexvertbot: Change telparia.com samples link to template

2023-12-28T02:55:14Z

Change telparia.com samples link to template

Jsummers: /* Software */

2023-10-07T11:51:53Z

‎Software

Polluks: /* Software */ Deark

2023-10-06T14:04:45Z

‎Software: Deark

Jsummers: /* Format details */

2022-09-01T17:25:11Z

‎Format details

Sembiance: /* Sample files */

2021-09-16T22:51:48Z

‎Sample files

Jsummers: /* Identification */

2021-02-18T17:02:27Z

‎Identification

Jsummers at 14:44, 18 February 2021

2021-02-18T14:44:39Z

Jsummers at 15:56, 8 September 2020

2020-09-08T15:56:19Z

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|swg}} |released=1993? }} '''SWG''' ('''SWAG packet''') is a specialized archive format associated with ..."

2020-09-08T15:47:45Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|swg}} |released=1993? }} '''SWG''' ('''SWAG packet''') is a specialized archive format associated with ..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Archiving
|extensions={{ext|swg}}
|released=1993?
}}
'''SWG''' ('''SWAG packet''') is a specialized archive format associated with the SourceWare Archival Group (SWAG). SWAG is a historical collection of [[Pascal]] source code.

There are at least two different SWG formats, which we'll call "old" and "new".

== Format details ==
New SWG format is based on generalized [[LHA]] format. It is approximately parseable as LHA, but the fields starting with the filename field seem to be repurposed, and it has a custom "compression scheme".

== Identification ==
New format files have ASCII "{{magic|-sw1-}}" at offset 2.

At least some old format files start with "{{magic|SWAGOLX.EXE}}".

== Software ==
* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → swag.zip - GDSOFT SWAG Packet Reader v3.13 (DOS software)
** Note that the Reader is also included in the allswags.zip file.
* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → swagwin.zip - SWAG for WINDOWS, v1.04
* {{CdTextfiles|monstmedia/PROG/PASCAL/SWAG.ZIP|SWAG.ZIP}} - Maybe the first version (DOS software)

== Sample files ==
* [https://archive.org/details/2012.11.24.ftp-garbo-mirror GARBO Shareware Archive] → allswags.zip
* [http://files.mpoli.fi/software/PROGRAMM/PASCAL/] → allswags.zip
* {{CdTextfiles|monstmedia/PROG/PASCAL/SWAGABC.ZIP|SWAGABC.ZIP}} - Old format

== Links ==
* [http://www.retroarchive.org/swag/ The HTML SWAG Home Page] - The contents of SWAG are available here, but maybe not in SWG format.

[[Category:Source code]]

@@ Line 34: / Line 34: @@
 * [http://files.mpoli.fi/software/PROGRAMM/PASCAL/] → ALLSWAGS.ZIP
 * {{CdTextfiles|monstmedia/PROG/PASCAL/SWAGABC.ZIP|SWAGABC.ZIP}} - Old format
-* https://telparia.com/fileFormatSamples/archive/swagPacket/
+* {{DexvertSamples|archive/swagPacket}}
 == Links ==

@@ Line 28: / Line 28: @@
 * [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → SWAGWIN.ZIP - SWAG for WINDOWS, v1.04
 * {{CdTextfiles|monstmedia/PROG/PASCAL/SWAG.ZIP|SWAG.ZIP}} - Maybe the first version (DOS software)
-* {{Deark}}
+* {{Deark}} (For analysis, maybe. Does not decompress the format.)
 == Sample files ==

@@ Line 11: / Line 11: @@
 == Format details ==
 New SWG format is a derivative of [[LHA]] format, apparently based on LHA header level 0, with an extra 165 bytes worth of headers preceding the filename field. It has a custom "<code>-sw1-</code>" compression method, the details of which are apparently undocumented.
 == Identification ==

@@ Line 13: / Line 13: @@
 == Identification ==
-New format files have ASCII "{{magic|-sw1-}}" at offset 2.
+New format: At offset 2 is ASCII "{{magic|-sw1-}}" (if the first member file was compressible), or "{{magic|-sw0-}}" (if not).
 At least some old format files start with "{{magic|SWAGOLX.EXE}}".

@@ Line 10: / Line 10: @@
 == Format details ==
-New SWG format is based on generalized [[LHA]] format. It is approximately parsable as LHA, but the fields starting with the filename field seem to be repurposed, and it has a custom "compression scheme".
+New SWG format is a derivative of [[LHA]] format, apparently based on LHA header level 0, with an extra 165 bytes worth of headers preceding the filename field. It has a custom "<code>-sw1-</code>" compression method, the details of which are apparently undocumented.
 == Identification ==
@@ Line 16: / Line 16: @@
 At least some old format files start with "{{magic|SWAGOLX.EXE}}".
 == Software ==
-* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → swag.zip - GDSOFT SWAG Packet Reader v3.13 (DOS software)
+* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → SWAG.ZIP - GDSOFT SWAG Packet Reader v3.13 (DOS software)
-** Note that the Reader is also included in the allswags.zip file.
+** Note that the Reader is also included in the ALLSWAGS.ZIP file.
-* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → swagwin.zip - SWAG for WINDOWS, v1.04
+* [http://files.mpoli.fi/software/PROGRAMM/GENERAL/] → SWAGWIN.ZIP - SWAG for WINDOWS, v1.04
 * {{CdTextfiles|monstmedia/PROG/PASCAL/SWAG.ZIP|SWAG.ZIP}} - Maybe the first version (DOS software)
 == Sample files ==
 * [https://archive.org/details/2012.11.24.ftp-garbo-mirror GARBO Shareware Archive] → allswags.zip
-* [http://files.mpoli.fi/software/PROGRAMM/PASCAL/] → allswags.zip
+* [http://files.mpoli.fi/software/PROGRAMM/PASCAL/] → ALLSWAGS.ZIP
 * {{CdTextfiles|monstmedia/PROG/PASCAL/SWAGABC.ZIP|SWAGABC.ZIP}} - Old format