hono/dist/router/pattern-router/router.js

Web framework built on Web Standards

// src/router/pattern-router/router.ts
import { METHOD_NAME_ALL, UnsupportedPathError } from "../../router.js";
var PatternRouter = class {
  name = "PatternRouter";
  routes = [];
  add(method, path, handler) {
    const endsWithWildcard = path[path.length - 1] === "*";
    if (endsWithWildcard) {
      path = path.slice(0, -2);
    }
    if (path.at(-1) === "?") {
      path = path.slice(0, -1);
      this.add(method, path.replace(/\/[^/]+$/, ""), handler);
    }
    const parts = (path.match(/\/?(:\w+(?:{(?:(?:{[\d,]+})|[^}])+})?)|\/?[^\/\?]+/g) || []).map(
      (part) => {
        const match = part.match(/^\/:([^{]+)(?:{(.*)})?/);
        return match ? `/(?<${match[1]}>${match[2] || "[^/]+"})` : part === "/*" ? "/[^/]+" : part.replace(/[.\\+*[^\]$()]/g, "\\$&");
      }
    );
    let re;
    try {
      re = new RegExp(`^${parts.join("")}${endsWithWildcard ? "" : "/?$"}`);
    } catch {
      throw new UnsupportedPathError();
    }
    this.routes.push([re, method, handler]);
  }
  match(method, path) {
    const handlers = [];
    for (const [pattern, routeMethod, handler] of this.routes) {
      if (routeMethod === METHOD_NAME_ALL || routeMethod === method) {
        const match = pattern.exec(path);
        if (match) {
          handlers.push([handler, match.groups || /* @__PURE__ */ Object.create(null)]);
        }
      }
    }
    return [handlers];
  }
};
export {
  PatternRouter
};