Fix string escaping

Author: isc-bsaviano

src/providers/FileSystemProvider/FileSearchProvider.ts

@@ -47,7 +47,7 @@ export class FileSearchProvider implements vscode.FileSearchProvider {
       pattern = !csp ? query.pattern.replace(/\//g, ".") : query.pattern;
       if (pattern.includes("_") || pattern.includes("%")) {
         // Need to escape any % or _ characters
-        filter = `Name LIKE '%${pattern.replace(/_/g, "\\_").replace(/%/g, "\\%")}%' ESCAPE '\\'`;
+        filter = `Name LIKE '%${pattern.replace(/(_|%|\\)/g, "\\$1")}%' ESCAPE '\\'`;
       } else {
         filter = `Name LIKE '%${pattern}%'`;
       }

src/providers/WorkspaceSymbolProvider.ts

@@ -90,7 +90,7 @@ export class WorkspaceSymbolProvider implements vscode.WorkspaceSymbolProvider {
     if (!vscode.workspace.workspaceFolders?.length) return;
     // Convert query to a LIKE compatible pattern
     let pattern = "%";
-    for (const c of query) pattern += `${["_", "%"].includes(c) ? "\\" : ""}${c}%`;
+    for (const c of query) pattern += `${["_", "%", "\\"].includes(c) ? "\\" : ""}${c}%`;
     if (token.isCancellationRequested) return;
     // Get results for all workspace folders
     return Promise.allSettled(