first commit

lib/content/zhouyi.ts

@@ -0,0 +1,41 @@
+import fs from "fs/promises";
+import path from "path";
+
+const CONTENT_ROOT = path.join(process.cwd(), "content", "zhouyi", "docs");
+
+export async function readGuaMarkdown(guaMark: string): Promise<string> {
+  const filePath = path.join(CONTENT_ROOT, guaMark, "index.md");
+  return fs.readFile(filePath, "utf-8");
+}
+
+export function extractZhangMingRen(guaDetail: string): string | undefined {
+  return guaDetail
+    .match(/(\*\*台灣張銘仁[\s\S]*?)(?=周易第\d+卦)/)?.[1]
+    ?.replaceAll("\n\n", "\n");
+}
+
+export function extractChangeDetails(
+  guaDetail: string,
+  guaChange: string,
+  guaTitle: string,
+): string[] {
+  const changeList: string[] = [];
+  if (guaChange === "无变爻") {
+    return changeList;
+  }
+
+  guaChange
+    .split(":")[1]
+    .trim()
+    .split(",")
+    .forEach((change) => {
+      const detail = guaDetail
+        .match(`(\\*\\*${change}變卦[\\s\\S]*?)(?=${guaTitle}|$)`)?.[1]
+        ?.replaceAll("\n\n", "\n");
+      if (detail) {
+        changeList.push(detail.trim());
+      }
+    });
+
+  return changeList;
+}