From 2f251facf156b6c89e6be3ba690261556baa02fa Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Tue, 24 Feb 2026 12:33:51 +0800
Subject: Implement SheetSystem core library

Add IndexSource type for resource addressing and implement mapping
system
with LocalMapping, Mapping, and MappingBuf types. Create Sheet and
SheetData
structs for managing sheet data with editing capabilities.

Implement binary format serialization/deserialization with reader and
writer
modules. Add constants for file format layout and comprehensive test
suite
for roundtrip verification.
---
 systems/_constants/src/lib.rs | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'systems/_constants')

diff --git a/systems/_constants/src/lib.rs b/systems/_constants/src/lib.rs
index 03ca845..4b7919f 100644
--- a/systems/_constants/src/lib.rs
+++ b/systems/_constants/src/lib.rs
@@ -8,6 +8,8 @@ macro_rules! c {
 pub const TEMP_FILE_PREFIX: &str = ".tmp_";
 pub const LOCK_FILE_PREFIX: &str = "~";
 
+pub const CURRENT_SHEET_VERSION: u8 = 0;
+
 /// File and directory path constants for the server root
 #[allow(unused)]
 pub mod server {
-- 
cgit