92 lines
2.8 KiB
TypeScript
92 lines
2.8 KiB
TypeScript
import type { RemarkPlugin } from "@astrojs/markdown-remark";
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import type { Node, Parent, Root, RootContent } from "hast";
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import { fromMarkdown } from "mdast-util-from-markdown";
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import { fromHtml } from "hast-util-from-html";
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import { toHtml } from "hast-util-to-html";
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import { spawnSync } from "node:child_process";
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import { mkdirSync, mkdtempSync, readFileSync } from "node:fs";
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import { tmpdir } from "node:os";
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import { join, parse } from "node:path";
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import { visit } from "unist-util-visit";
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const remarkAgda: RemarkPlugin = () => {
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return (tree, { history }) => {
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// console.log("args", arguments)
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const path: string = history[history.length - 1];
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console.log("path", history);
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if (!(path.endsWith(".lagda.md") || path.endsWith(".agda"))) return;
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const tempDir = mkdtempSync(join(tmpdir(), "agdaRender."));
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const outDir = join(tempDir, "output");
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mkdirSync(outDir, { recursive: true });
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const childOutput = spawnSync(
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"agda",
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[
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"--html",
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`--html-dir=${outDir}`,
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"--highlight-occurrences",
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"--html-highlight=code",
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path,
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],
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{},
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);
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console.log("output", childOutput.output.toString());
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const filename = parse(path).base.replace(/\.lagda.md/, ".md");
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const htmlname = parse(path).base.replace(/\.lagda.md/, ".html");
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console.log();
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console.log("filename", filename);
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const fullOutputPath = join(outDir, filename);
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console.log("outDir", fullOutputPath);
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console.log();
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const doc = readFileSync(fullOutputPath);
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const tree2 = fromMarkdown(doc);
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// console.log("tree", tree);
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const collectedCodeBlocks: RootContent[] = [];
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visit(tree2, "html", (node) => {
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// console.log("node", node);
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// collectedCodeBlocks.push
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const html = fromHtml(node.value, { fragment: true });
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const firstChild: RootContent = html.children[0]!;
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console.log("child", firstChild);
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visit(html, "element", (node) => {
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if (node.tagName !== "a") return;
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if (node.properties.href && node.properties.href.includes(htmlname)) {
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console.log("a", node.properties);
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node.properties.href = node.properties.href.replace(htmlname, "");
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}
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});
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if (!firstChild?.properties?.className?.includes("Agda")) return;
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const stringContents = toHtml(firstChild);
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// console.log("result", stringContents);
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collectedCodeBlocks.push({
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contents: stringContents,
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});
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});
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console.log("collected len", collectedCodeBlocks.length);
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let idx = 0;
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visit(tree, "code", (node) => {
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if (node.lang !== "agda") return;
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// console.log("node", node);
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node.type = "html";
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node.value = collectedCodeBlocks[idx].contents;
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idx += 1;
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});
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console.log("len", idx);
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};
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};
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export default remarkAgda;
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