geido commented on code in PR #37229:
URL: https://github.com/apache/superset/pull/37229#discussion_r2709228172
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superset-frontend/plugins/plugin-chart-echarts/src/utils/forecast.ts:
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@@ -26,6 +26,147 @@ import {
} from '../types';
import { sanitizeHtml } from './series';
+/**
+ * Escapes RegExp metacharacters in a string so it can be safely used in a
+ * dynamically created regular expression.
+ *
+ * @param value - The raw string to escape
+ * @returns The escaped string safe for use in `new RegExp(...)`
+ */
+const escapeRegex = (value: string) =>
+ value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+
+/**
+ * Replaces a label inside a compound key only if it appears as a complete
+ * word/token and contains at least one alphabetic character.
+ *
+ * @param key - The source string (typically a compound field name)
+ * @param label - The label to search for as a standalone token
+ * @param replacement - The human-readable value to replace the label with
+ * @returns The transformed key if a valid match exists, otherwise the
original key
+ */
+const replaceLabelIfExists = (
Review Comment:
Needs a deeper review
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