refactoring to ParserContext

src/services/search/parsing_context.js

@@ -0,0 +1,18 @@
+"use strict";
+
+class ParsingContext {
+    constructor(includeNoteContent) {
+        this.includeNoteContent = includeNoteContent;
+        this.highlightedTokens = [];
+        this.error = null;
+    }
+
+    addError(error) {
+        // we record only the first error, subsequent ones are usually consequence of the first
+        if (!this.error) {
+            this.error = error;
+        }
+    }
+}
+
+module.exports = ParsingContext;