From 1932d0482af2215c740400542532a2a5e01a6031 Mon Sep 17 00:00:00 2001
From: Bo-Y-G <higaoby@gmail.com>
Date: Thu, 15 Aug 2024 19:30:51 +0000
Subject: [PATCH] Title Collecting and rendering titles to Pretext

---
 .../unified-latex-to-pretext/libs/title.ts    | 28 +++++++++++++
 .../tests/title.test.ts                       | 41 +++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 packages/unified-latex-to-pretext/libs/title.ts
 create mode 100644 packages/unified-latex-to-pretext/tests/title.test.ts

diff --git a/packages/unified-latex-to-pretext/libs/title.ts b/packages/unified-latex-to-pretext/libs/title.ts
new file mode 100644
index 00000000..16d9f5c5
--- /dev/null
+++ b/packages/unified-latex-to-pretext/libs/title.ts
@@ -0,0 +1,28 @@
+import * as Ast from "@unified-latex/unified-latex-types";
+import { visit } from "@unified-latex/unified-latex-util-visit";
+import { match } from "@unified-latex/unified-latex-util-match";
+import { htmlLike } from "@unified-latex/unified-latex-util-html-like";
+
+export function gatherTitle(ast: Ast.Ast): Ast.Node[] {
+    const ti: Ast.Node[] = [];
+
+    visit(ast, (node) => {
+        if (match.macro(node, "title") && node.args) {
+            const titleContent = Object.fromEntries(
+                node.args.map((x) => [x.content])
+            );
+            return titleContent;
+        }
+    });
+    return ti;
+}
+
+export function renderTitle(ast: Ast.Ast, title: Ast.Node): Ast.Macro {
+
+    const renderedAuthorList = htmlLike({
+        tag: "title",
+        content: title,
+    });
+
+    return renderedAuthorList;
+}
diff --git a/packages/unified-latex-to-pretext/tests/title.test.ts b/packages/unified-latex-to-pretext/tests/title.test.ts
new file mode 100644
index 00000000..954b8bd5
--- /dev/null
+++ b/packages/unified-latex-to-pretext/tests/title.test.ts
@@ -0,0 +1,41 @@
+import { describe, it, expect } from "vitest";
+import Prettier from "prettier";
+import util from "util";
+import { getParser } from "@unified-latex/unified-latex-util-parse";
+import { toXml } from "xast-util-to-xml";
+import { xmlCompilePlugin } from "../libs/convert-to-pretext";
+import { unified } from "unified";
+import { gatherTitle, renderTitle } from "../libs/title";
+import { toPretextWithLoggerFactory } from "../libs/pretext-subs/to-pretext";
+
+function normalizeHtml(str: string) {
+    try {
+        return Prettier.format(str, { parser: "html" });
+    } catch {
+        console.warn("Could not format HTML string", str);
+        return str;
+    }
+}
+
+// Make console.log pretty-print by default
+const origLog = console.log;
+console.log = (...args) => {
+    origLog(...args.map((x) => util.inspect(x, false, 10, true)));
+};
+
+describe("unified-latex-to-pretext:title", () => {
+    let sample: string;
+    let input: string;
+    const parser = getParser();
+
+    it("collects title content", () => {
+        sample =
+            "\\title{Title}";
+        expect(gatherTitle(parser.parse(sample))).toEqual([]);
+
+        sample = 
+            "\\title{Title} \n \\maketitle";
+        input = "     Title"
+        expect(gatherTitle(parser.parse(sample))).toEqual(parser.parse(input).content);
+    });
+});
\ No newline at end of file