Implement helper function for path escaping in mentions

- Added `escapePath` function to encapsulate multi-level escaping for backslashes and spaces in file paths.
- Updated `convertToMentionPath` to utilize the new helper function, improving code clarity and consistency in path handling.
- Ensured robust handling of paths with escaped characters across different scenarios.

Author: Yikai-Liao

webview-ui/src/utils/path-mentions.ts

@@ -2,6 +2,16 @@
  * Utilities for handling path-related operations in mentions
  */
 
+/**
+ * Helper function to escape backslashes and spaces in a path.
+ * This encapsulates the multi-level escaping strategy for file paths.
+ * @param inputPath The path to escape
+ * @returns The escaped path
+ */
+function escapePath(inputPath: string): string {
+	return inputPath.replace(/\\/g, '\\\\').replace(/ /g, '\\ ');
+}
+
 /**
  * Converts an absolute path to a mention-friendly path
  * If the provided path starts with the current working directory,
@@ -13,12 +23,12 @@
  */
 export function convertToMentionPath(path: string, cwd?: string): string {
 	// First, handle Windows path separators and convert to forward slashes
-	let processedPath = path.replace(/\\\\/g, "//").replace(/\\/g, "/");
-	let normalizedCwd = cwd ? cwd.replace(/\\\\/g, "//").replace(/\\/g, "/") : "";
+	let processedPath = path.replace(/\\\\\\/g, "//").replace(/\\/g, "/");
+	let normalizedCwd = cwd ? cwd.replace(/\\\\\\/g, "//").replace(/\\/g, "/") : "";
 
 	if (!normalizedCwd) {
 		// If no CWD, just escape spaces in the original path
-		return processedPath.replace(/\\/g, '\\\\').replace(/ /g, '\\ ');
+		return escapePath(processedPath);
 	}
 
 	// Remove trailing slash from cwd if it exists
@@ -53,11 +63,11 @@ export function convertToMentionPath(path: string, cwd?: string): string {
 		 * will undergo a second round of escaping, resulting in double backslashes.
 		 * This is necessary to preserve the escapes through the entire text processing pipeline.
 		 */
-		// Escape backslashes first, then spaces (single backslash for space)
-		return mentionPath.replace(/\\/g, '\\\\').replace(/ /g, '\\ ');
+		// Use the helper function to escape the path
+		return escapePath(mentionPath);
 	}
 
 	// If path doesn't start with CWD, escape spaces in the processed path
-	// Escape backslashes first, then spaces (single backslash for space)
-	return processedPath.replace(/\\/g, '\\\\').replace(/ /g, '\\ ');
+	// Use the helper function to escape the path
+	return escapePath(processedPath);
 }