From c7ae1a7c23b69a214cebc1c495c9a4b3bf0d35aa Mon Sep 17 00:00:00 2001
From: rswindell <>
Date: Fri, 5 Jan 2018 03:22:56 +0000
Subject: [PATCH] A small library to deal with ACiD SAUCE data
---
exec/load/sauce_lib.js | 87 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 87 insertions(+)
create mode 100644 exec/load/sauce_lib.js
diff --git a/exec/load/sauce_lib.js b/exec/load/sauce_lib.js
new file mode 100644
index 0000000000..6b350e61f6
--- /dev/null
+++ b/exec/load/sauce_lib.js
@@ -0,0 +1,87 @@
+// $Id$
+// vi: tabstop=4
+
+const defs = {
+
+ datatype: {
+ none: 0,
+ character: 1,
+ bitmap: 2,
+ vector: 3,
+ audio: 4,
+ bintext: 5,
+ xbin: 6,
+ archive: 7,
+ exe: 8,
+ },
+
+ filetype: {
+ ascii: 0,
+ ansi: 1,
+ ansimation: 2,
+ rip: 3,
+ pcboard: 4,
+ avatar: 5,
+ html: 6,
+ source: 7,
+ tundra: 8,
+ },
+
+ ansiflag: {
+ nonblink: (1<<0), // high intensity BG, aka iCE colors
+ spacing_mask: (3<<1), // letter spacing
+ spacing_legacy: (0<<1), // Legacy value. No preference.
+ spacing_8pix: (1<<1), // 8-pixel font
+ spacing_9pix: (2<<1), // 9-pixel font
+ ratio_mask: (3<<3), // aspect ratio
+ ratio_legacy: (0<<3), // Legacy value. No preference.
+ ratio_rect: (1<<3), // Rectangular pixels
+ ratio_square: (2<<3), // Square pixels
+ },
+
+ trailer_length: 128
+};
+
+// Pass either a filename or a File instance
+function read(fname)
+{
+ var file;
+
+ if(typeof fname == 'object')
+ file = fname;
+ else {
+ file = new File(fname);
+ if(!file.open("rb"))
+ return false;
+ }
+
+ if(file.length < defs.trailer_length)
+ return false;
+
+ file.position = file.length - defs.trailer_length;
+ if(file.read(7) != 'SAUCE00')
+ return false;
+
+ var obj = {};
+ obj.title = file.read(35).trim();
+ obj.author = file.read(20).trim();
+ obj.group = file.read(20).trim();
+ obj.date = file.read(8).trim();
+ obj.filesize = file.readBin(4);
+ obj.datatype = file.readBin(1);
+ obj.filetype = file.readBin(1);
+ obj.tinfo1 = file.readBin(2);
+ obj.tinfo2 = file.readBin(2);
+ obj.tinfo3 = file.readBin(2);
+ obj.tinfo4 = file.readBin(2);
+ obj.comments = file.readBin(1);
+ obj.tflags = file.readBin(1);
+ obj.tinfos = truncsp(file.read(22));
+ obj.ice_color = function () {
+ return this.filetype == defs.filetype.ansi && this.tflags&defs.ansiflag.nonblink;
+ }
+ return obj;
+}
+
+
+this;
--
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