Add XQuery Linting Feature

src/linting/xquery-linter.ts

@@ -0,0 +1,23 @@
+import { Diagnostic, DiagnosticSeverity, Position, Range } from "vscode";
+
+const XQLint = require("xqlint").XQLint;
+
+export class XQueryLinter {
+    static SEVERITY_WARNING: number = 1;
+    static SEVERITY_ERROR: number = 2;
+
+    lint(text: string): Diagnostic[] {
+        const linter = new XQLint(text);
+        const diagnostics = new Array<Diagnostic>();
+
+        linter.getErrors().forEach((error: any) => {
+            diagnostics.push(new Diagnostic(new Range(new Position(error.pos.sl, error.pos.sc), new Position(error.pos.el, error.pos.ec)), error.message, DiagnosticSeverity.Error));
+        });
+
+        linter.getWarnings().forEach((warning: any) => {
+            diagnostics.push(new Diagnostic(new Range(new Position(warning.pos.sl, warning.pos.sc), new Position(warning.pos.el, warning.pos.ec)), warning.message, DiagnosticSeverity.Warning));
+        });
+
+        return diagnostics;
+    }
+}