Function matchDynamicRoute

packages/next-routing/src/resolve-routes.ts:231–261

* Matches dynamic routes and extracts route parameters

(
  pathname: string,
  route: Route
)

 * Matches dynamic routes and extracts route parameters
 */
function matchDynamicRoute(
  pathname: string,
  route: Route
): {
  matched: boolean
  params?: Record<string, string>
  regexMatches?: RegExpMatchArray
} {
  const regex = new RegExp(route.sourceRegex)
  const match = pathname.match(regex)

  if (!match) {
    return { matched: false }
  }

  const params: Record<string, string> = {}

  // Add numbered matches
  for (let i = 1; i < match.length; i++) {
    if (match[i] !== undefined) {
      params[String(i)] = match[i]
    }
  }

  // Add named matches
  if (match.groups) {
    Object.assign(params, match.groups)
  }

  return { matched: true, params, regexMatches: match }
}

/**
 * Applies headers from onMatch routes