wip 2

src/core/utils/create_routes.js

@@ -0,0 +1,90 @@
+import * as path from 'path';
+
+export default function create_matchers(files) {
+	const routes = files
+		.map(file => {
+			if (/(^|\/|\\)_/.test(file)) return;
+
+			const parts = file.replace(/\.(html|js|mjs)$/, '').split('/'); // glob output is always posix-style
+			if (parts[parts.length - 1] === 'index') parts.pop();
+
+			const id = (
+				parts.join('_').replace(/[[\]]/g, '$').replace(/^\d/, '_$&').replace(/[^a-zA-Z0-9_$]/g, '_')
+			 ) || '_';
+
+			const dynamic = parts
+				.filter(part => part[0] === '[')
+				.map(part => part.slice(1, -1));
+
+			let pattern_string = '';
+			let i = parts.length;
+			let nested = true;
+			while (i--) {
+				const part = parts[i];
+				const dynamic = part[0] === '[';
+
+				if (dynamic) {
+					pattern_string = nested ? `(?:\\/([^/]+)${pattern_string})?` : `\\/([^/]+)${pattern_string}`;
+				} else {
+					nested = false;
+					pattern_string = `\\/${part}${pattern_string}`;
+				}
+			}
+
+			const pattern = new RegExp(`^${pattern_string}\\/?$`);
+
+			const test = url => pattern.test(url);
+
+			const exec = url => {
+				const match = pattern.exec(url);
+				if (!match) return;
+
+				const params = {};
+				dynamic.forEach((param, i) => {
+					params[param] = match[i + 1];
+				});
+
+				return params;
+			};
+
+			return {
+				id,
+				type: path.extname(file) === '.html' ? 'page' : 'route',
+				file,
+				pattern,
+				test,
+				exec,
+				parts,
+				dynamic
+			};
+		})
+		.filter(Boolean)
+		.sort((a, b) => {
+			let same = true;
+
+			for (let i = 0; true; i += 1) {
+				const a_part = a.parts[i];
+				const b_part = b.parts[i];
+
+				if (!a_part && !b_part) {
+					if (same) throw new Error(`The ${a.file} and ${b.file} routes clash`);
+					return 0;
+				}
+
+				if (!a_part) return -1;
+				if (!b_part) return 1;
+
+				const a_is_dynamic = a_part[0] === '[';
+				const b_is_dynamic = b_part[0] === '[';
+
+				if (a_is_dynamic === b_is_dynamic) {
+					if (!a_is_dynamic && a_part !== b_part) same = false;
+					continue;
+				}
+
+				return a_is_dynamic ? 1 : -1;
+			}
+		});
+
+	return routes;
+}