Add local repo contents

frontend/src/app/components/tabular/citation-utils.ts

@@ -0,0 +1,26 @@
+"use client";
+
+const PAGE_CITATION_RE = /\[\[page:(\d+)\|\|(?:quote:)?((?:[^\[\]]|\[[^\]]*\])+)\]\]/gi;
+
+export interface ParsedCitation {
+    page: number;
+    quote: string;
+}
+
+/**
+ * Replaces [[page:n||quote:...]] markers with `§idx§` placeholders.
+ * Returns the processed string and an ordered array of extracted citation data.
+ */
+export function preprocessCitations(text: string): {
+    processed: string;
+    citations: ParsedCitation[];
+} {
+    const citations: ParsedCitation[] = [];
+    PAGE_CITATION_RE.lastIndex = 0;
+    const processed = text.replace(PAGE_CITATION_RE, (_, page, quote) => {
+        const idx = citations.length;
+        citations.push({ page: parseInt(page, 10), quote: quote.trim() });
+        return `§${idx}§`;
+    });
+    return { processed, citations };
+}