From 2e2b3b8b9cd142a4ccae0a336465553a7b1366b1 Mon Sep 17 00:00:00 2001
From: rswindell <>
Date: Wed, 10 Jan 2018 11:22:56 +0000
Subject: [PATCH] Added write() and remove() methods.
---
exec/load/sauce_lib.js | 76 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 76 insertions(+)
diff --git a/exec/load/sauce_lib.js b/exec/load/sauce_lib.js
index 30d358f1e4..31c6acac2b 100644
--- a/exec/load/sauce_lib.js
+++ b/exec/load/sauce_lib.js
@@ -44,6 +44,7 @@ const defs = {
version_length: 2,
trailer_length: 128,
comment_length: 64,
+ max_comments: 255,
};
// Pass either a filename or a File instance
@@ -113,4 +114,79 @@ function read(fname)
return obj;
}
+function valueof(val)
+{
+ return val ? val : "";
+}
+
+// Pass either a filename or a File instance
+function write(fname, obj)
+{
+ var file;
+
+ if(typeof fname == 'object')
+ file = fname;
+ else {
+ file = new File(fname);
+ if(!file.open("r+b"))
+ return false;
+ }
+
+ var existing = this.read(file);
+ if(existing)
+ file.position = existing.filesize;
+ else
+ file.position = file.length;
+ obj.filesize = file.position;
+ file.truncate(obj.filesize);
+
+ // Do some convenience field parsing/conversions here
+ if(obj.ice_color == true)
+ obj.tflags |= defs.ansiflag.nonblink;
+ if(obj.datatype == defs.datatype.bin)
+ obj.filetype = obj.cols / 2;
+
+ file.write('\x1a'); // Ctrl-Z, CPM-EOF
+ if(obj.comment.length) {
+ file.write('COMNT');
+ for(var i in obj.comment)
+ file.printf("%-64s", valueof(obj.comment[i]));
+ }
+ file.write('SAUCE00');
+ file.printf("%-35.35s", valueof(obj.title));
+ file.printf("%-20.20s", valueof(obj.author));
+ file.printf("%-20.20s", valueof(obj.group));
+ // Use current date:
+ var now = new Date();
+ file.printf("%04u%02u%02u", now.getFullYear(), now.getMonth() + 1, now.getDate());
+ file.writeBin(obj.filesize);
+ file.writeBin(obj.datatype, 1);
+ file.writeBin(obj.filetype, 1);
+ file.writeBin(obj.tinfo1, 2);
+ file.writeBin(obj.tinfo2, 2);
+ file.writeBin(obj.tinfo3, 2);
+ file.writeBin(obj.tinfo4, 2);
+ file.writeBin(obj.comment.length, 1);
+ file.writeBin(obj.tflags, 1);
+ file.write(valueof(obj.tinfos), 22);
+ return true;
+}
+
+// Pass either a filename or a File instance
+function remove(fname)
+{
+ var file;
+
+ if(typeof fname == 'object')
+ file = fname;
+ else {
+ file = new File(fname);
+ if(!file.open("r+b"))
+ return false;
+ }
+
+ var obj = this.read(file);
+ return file.truncate(obj.filesize);
+}
+
this;
--
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