refactor: 代码清理 — 删除 AppError、重命名 replacePaths、修正 detectExportFormat、统一 PATH 长度、优化 BOM 检查、添加同步注释

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/config/default.json

@@ -12,8 +12,8 @@
     "dir": ""
   },
   "path": {
-    "maxSystemLength": 2048,
-    "maxUserLength": 2048,
-    "maxCombinedLength": 8191
+    "maxSystemLength": 32767,
+    "maxUserLength": 32767,
+    "maxCombinedLength": 32767
   }
 }

src/core/import-export.ts

@@ -2,7 +2,7 @@
  * 导入导出模块 — 对应 C 版 import_export.c
  * 支持 JSON、CSV、TXT 三种格式
  */
-export type ExportFormat = 'json' | 'csv';
+export type ExportFormat = 'json' | 'csv' | 'txt';
 
 export interface ExportData {
   system: string[];
@@ -11,7 +11,9 @@ export interface ExportData {
 
 /** 根据文件扩展名检测格式 */
 export function detectExportFormat(filepath: string): ExportFormat {
-  if (filepath.toLowerCase().endsWith('.csv')) return 'csv';
+  const lower = filepath.toLowerCase();
+  if (lower.endsWith('.csv')) return 'csv';
+  if (lower.endsWith('.txt')) return 'txt';
   return 'json';
 }
 
@@ -65,10 +67,10 @@ export function importFromCsv(content: string): ImportResult {
 
   let hasHeader = false;
 
-  for (const rawLine of lines) {
-    // 跳过 BOM
-    let line = rawLine;
-    if (line.startsWith('')) {
+  for (let i = 0; i < lines.length; i++) {
+    // 跳过 BOM（仅首行）
+    let line = lines[i];
+    if (i === 0 && line.startsWith('')) {
       line = line.slice(1);
     }
 
@@ -174,9 +176,10 @@ export function importFromTxt(content: string): string[] {
   const paths: string[] = [];
   const lines = content.split(/\r?\n/);
 
-  for (let line of lines) {
-    // 跳过 BOM
-    if (line.startsWith('')) line = line.slice(1);
+  for (let i = 0; i < lines.length; i++) {
+    // 跳过 BOM（仅首行）
+    let line = lines[i];
+    if (i === 0 && line.startsWith('')) line = line.slice(1);
 
     const trimmed = line.trim();
     if (trimmed.length === 0 || trimmed.startsWith('#')) continue;

src/core/validation.ts

@@ -26,7 +26,8 @@ export function join_path(paths: string[]): string {
   return paths.join(';');
 }
 
-/** 分割 PATH 字符串 */
+/** 分割 PATH 字符串。
+ *  注意：Rust 端 src-tauri/src/commands/registry.rs 有相同逻辑的 split_path，修改时需同步两端。 */
 export function split_path(raw: string): string[] {
   return raw
     .split(';')

src/hooks/use-app-actions.ts

@@ -92,9 +92,9 @@ export function useAppActions(activeTab: TabId, dialogs: DialogState) {
     if (result.system.length > 0 && result.user.length > 0) {
       setImportDialog({ open: true, system: result.system, user: result.user });
     } else if (result.system.length > 0) {
-      useAppStore.getState().importPaths(TargetType.SYSTEM, result.system);
+      useAppStore.getState().replacePaths(TargetType.SYSTEM, result.system);
     } else if (result.user.length > 0) {
-      useAppStore.getState().importPaths(TargetType.USER, result.user);
+      useAppStore.getState().replacePaths(TargetType.USER, result.user);
     }
   }, [setImportDialog]);
 
@@ -159,8 +159,8 @@ export function useAppActions(activeTab: TabId, dialogs: DialogState) {
   const handleImportSelect = useCallback((target: 'system' | 'user' | 'both') => {
     const { system, user } = dialogs.importDialog;
     const flat = flattenImportResult({ system, user }, target);
-    if (flat.system.length > 0) useAppStore.getState().importPaths(TargetType.SYSTEM, flat.system);
-    if (flat.user.length > 0) useAppStore.getState().importPaths(TargetType.USER, flat.user);
+    if (flat.system.length > 0) useAppStore.getState().replacePaths(TargetType.SYSTEM, flat.system);
+    if (flat.user.length > 0) useAppStore.getState().replacePaths(TargetType.USER, flat.user);
     setImportDialog({ open: false, system: [], user: [] });
   }, [dialogs.importDialog, setImportDialog]);
 

src/store/app-store.ts

@@ -34,7 +34,7 @@ interface AppState {
   moveUp: (index: number, target: TargetType) => void;
   moveDown: (index: number, target: TargetType) => void;
   cleanPaths: (target: TargetType, validateFn: (p: string) => boolean) => string[];
-  importPaths: (target: TargetType, importPaths: string[]) => void;
+  replacePaths: (target: TargetType, newPaths: string[]) => void;
   clearPaths: (target: TargetType) => void;
 
   undo: () => void;
@@ -169,18 +169,18 @@ export const useAppStore = create<AppState>((set, get) => ({
     return removed;
   },
 
-  importPaths: (target, importPaths) => {
-    if (importPaths.length === 0) return;
+  replacePaths: (target, newPaths) => {
+    if (newPaths.length === 0) return;
     const state = get();
     const list = target === TargetType.SYSTEM ? state.sysPaths : state.userPaths;
 
     state.undoRedo.push({
-      type: OperationType.IMPORT, target, index: 0, count: importPaths.length,
-      oldPaths: [...list], newPaths: [...importPaths],
+      type: OperationType.IMPORT, target, index: 0, count: newPaths.length,
+      oldPaths: [...list], newPaths: [...newPaths],
     });
 
-    if (target === TargetType.SYSTEM) set({ sysPaths: [...importPaths], selectedIndices: [] });
-    else set({ userPaths: [...importPaths], selectedIndices: [] });
+    if (target === TargetType.SYSTEM) set({ sysPaths: [...newPaths], selectedIndices: [] });
+    else set({ userPaths: [...newPaths], selectedIndices: [] });
     get()._markDirty();
   },