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Automatic mode: Derives path from `currentRoute` prop\n * 2. Controlled mode: Uses provided `routes` array for complete control over route naming\n *\n * @example\n * ```tsx\n * // Simple automatic mode\n * <Breadcrumb currentRoute=\"/products/shirts\" />\n *\n * // Controlled mode with custom route names\n * <Breadcrumb\n *   currentRoute=\"/prod/shirts\"\n *   routes={[\n *     { path: \"prod\", name: \"Products\", url: \"/products\" },\n *     { path: \"shirts\", name: \"All Shirts\", url: \"/products/shirts\" }\n *   ]}\n * />\n * ```\n */\nexport type BreadcrumbProps = {\n  /** Array of custom route objects for controlled breadcrumb generation */\n  routes?: CustomRoute[];\n  /** Starting route node (typically \"Home\") */\n  startRoute?: React.ReactNode;\n  /** Starting route URL (typically \"/\") */\n  startRouteUrl?: string;\n  /** Separator element between breadcrumb items */\n  spacer?: React.ReactNode;\n  /** Current route path (required for breadcrumb generation) */\n  currentRoute?: string;\n  /** ARIA label for the breadcrumb navigation */\n  ariaLabel?: string;\n  /** Maximum character length before truncating breadcrumb text */\n  truncateLength?: number;\n  /** Props to spread onto breadcrumb Link components */\n  linkProps?: Omit<React.ComponentProps<typeof Link>, \"href\" | \"children\">;\n} & Omit<React.ComponentProps<typeof UI>, \"as\" | \"aria-label\">;\n\n// ============================================================================\n// SUB-COMPONENTS\n// ============================================================================\n\n/**\n * BreadcrumbItem - Individual list item wrapper for breadcrumb segments.\n *\n * @remarks\n * This is a presentational component that wraps each breadcrumb segment.\n * Memoized to prevent unnecessary re-renders when parent updates.\n */\nconst BreadcrumbItem = React.memo(\n  ({\n    children,\n    id,\n    styles,\n    classes,\n    ...props\n  }: React.ComponentProps<typeof UI>) => {\n    // Filter out UI-specific props that aren't valid on <li>\n    // eslint-disable-next-line @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any\n    const { renderStyles, defaultStyles, as, ref, ...validLiProps } = props as any;\n    return (\n      <li\n        id={id}\n        style={styles}\n        className={classes}\n        data-list=\"unstyled inline\"\n        {...validLiProps}\n      >\n        {children}\n      </li>\n    );\n  }\n);\nBreadcrumbItem.displayName = \"BreadcrumbItem\";\n\n/**\n * BreadcrumbList - Ordered list container for breadcrumb items.\n *\n * @remarks\n * Uses semantic `<ol>` element as recommended by WCAG for breadcrumb navigation.\n * Memoized to prevent unnecessary re-renders.\n */\nconst BreadcrumbList = React.memo(\n  ({ children, ...props }: React.ComponentProps<typeof UI>) => {\n    return (\n      <UI as=\"ol\" data-list=\"unstyled inline\" {...props}>\n        {children}\n      </UI>\n    );\n  }\n);\nBreadcrumbList.displayName = \"BreadcrumbList\";\n\n/**\n * BreadcrumbNav - Navigation wrapper for breadcrumb structure.\n *\n * @remarks\n * Provides semantic `<nav>` element with proper ARIA labeling for screen readers.\n * Automatically wraps children in BreadcrumbList.\n */\nconst BreadcrumbNav = React.memo(\n  ({\n    styles,\n    id,\n    classes,\n    children,\n    ...props\n  }: React.ComponentProps<typeof UI>) => {\n    return (\n      <UI as=\"nav\" id={id} styles={styles} className={classes} {...props}>\n        <BreadcrumbList>{children}</BreadcrumbList>\n      </UI>\n    );\n  }\n);\nBreadcrumbNav.displayName = \"BreadcrumbNav\";\n\n// ============================================================================\n// HOOKS\n// ============================================================================\n\n/**\n * Custom hook to process breadcrumb segments from a path string.\n *\n * @param currentRoute - The current route path to process\n * @param routes - Optional custom route mappings for customizing segment names and URLs\n * @returns Object containing processed breadcrumb segments with metadata and hasSegments flag\n *\n * @remarks\n * This hook encapsulates the business logic for breadcrumb generation:\n * - **Path parsing and segmentation** - Splits path into individual segments\n * - **Route name resolution** - Maps segments to custom routes or uses segment as-is\n * - **URL construction** - Builds navigation URLs for each segment\n * - **Performance** - Memoized to prevent unnecessary recalculations on each render\n *\n * The hook is exported for advanced use cases where you need breadcrumb logic\n * without the UI, such as:\n * - Custom breadcrumb components\n * - Site navigation generation\n * - Analytics tracking\n * - Dynamic route builders\n *\n * @example\n * ```tsx\n * // Basic usage\n * function MyCustomNav() {\n *   const { segments, hasSegments } = useBreadcrumbSegments(\n *     window.location.pathname\n *   );\n *\n *   if (!hasSegments) return null;\n *\n *   return (\n *     <nav>\n *       {segments.map(seg => (\n *         <a key={seg.path} href={seg.url}>{seg.name}</a>\n *       ))}\n *     </nav>\n *   );\n * }\n * ```\n *\n * @example\n * ```tsx\n * // With custom routes\n * function SiteMap() {\n *   const customRoutes = [\n *     { path: \"products\", name: \"All Products\", url: \"/products\" },\n *     { path: \"shirts\", name: \"Shirts & Tops\", url: \"/products/shirts\" }\n *   ];\n *\n *   const { segments } = useBreadcrumbSegments(\n *     \"/products/shirts/item-123\",\n *     customRoutes\n *   );\n *\n *   return (\n *     <ul>\n *       {segments.map(seg => (\n *         <li key={seg.path}>\n *           {seg.isLast ? seg.name : <a href={seg.url}>{seg.name}</a>}\n *         </li>\n *       ))}\n *     </ul>\n *   );\n * }\n * ```\n *\n * @example\n * ```tsx\n * // For analytics tracking\n * function TrackBreadcrumb() {\n *   const { segments } = useBreadcrumbSegments(location.pathname);\n *\n *   useEffect(() => {\n *     analytics.track('breadcrumb_view', {\n *       path: segments.map(s => s.name).join(' > '),\n *       depth: segments.length\n *     });\n *   }, [segments]);\n *\n *   return <Breadcrumb currentRoute={location.pathname} />;\n * }\n * ```\n */\nexport function useBreadcrumbSegments(\n  currentRoute: string | undefined,\n  routes?: CustomRoute[]\n) {\n  const segments = React.useMemo(() => {\n    if (!currentRoute) return [];\n    return currentRoute.split(\"/\").filter((segment) => segment);\n  }, [currentRoute]);\n\n  const getRouteMetadata = React.useCallback(\n    (pathSegment: string): CustomRoute => {\n      const route = routes?.find((r) => r.path === pathSegment);\n\n      return {\n        path: route?.path || pathSegment,\n        name: route?.name || pathSegment,\n        url: route?.url || pathSegment,\n      };\n    },\n    [routes]\n  );\n\n  const processedSegments = React.useMemo(() => {\n    return segments.map((segment, index) => ({\n      ...getRouteMetadata(segment),\n      isLast: index === segments.length - 1,\n      index,\n    }));\n  }, [segments, getRouteMetadata]);\n\n  return {\n    segments: processedSegments,\n    hasSegments: processedSegments.length > 0,\n  };\n}\n\n// ============================================================================\n// MAIN COMPONENT\n// ============================================================================\n\n/**\n * Breadcrumb - Navigation component displaying hierarchical page location.\n *\n * @remarks\n * A WCAG 2.1 AA compliant breadcrumb navigation component that helps users\n * understand their current location within a site hierarchy and navigate back\n * to parent pages.\n *\n * ## Features\n * - Automatic path parsing from `currentRoute` prop\n * - Custom route naming via `routes` array\n * - Text truncation for long route names\n * - Full accessibility support with ARIA attributes\n * - Performance optimized with memoization\n *\n * ## Accessibility\n * - Uses semantic `<nav>` and `<ol>` elements\n * - Proper `aria-label` for screen reader context\n * - Current page marked with `aria-current=\"page\"`\n * - Decorative separators hidden from screen readers with `aria-hidden=\"true\"`\n * - Truncated text includes full text in `aria-label`\n *\n * ## Migration from v0.5.x\n *\n * The component was refactored in v0.5.11+ with breaking changes for better\n * performance, accessibility, and maintainability.\n *\n * ### Breaking Changes\n *\n * #### 1. Prop Rename: `ariaLabelPrefix` → `ariaLabel`\n * ```tsx\n * // Before (v0.5.x)\n * <Breadcrumb ariaLabelPrefix=\"Navigation\" />\n *\n * // After (v0.5.11+)\n * <Breadcrumb ariaLabel=\"Navigation\" />\n * ```\n *\n * #### 2. Type Rename: `customRoute` → `CustomRoute`\n * ```tsx\n * // Before (v0.5.x)\n * import { customRoute } from '@fpkit/acss';\n *\n * // After (v0.5.11+)\n * import { CustomRoute } from '@fpkit/acss';\n * ```\n *\n * #### 3. Removed Automatic `window.location.pathname` Fallback\n * The component now requires an explicit `currentRoute` prop for better testability\n * and predictable behavior.\n *\n * ```tsx\n * // Before (v0.5.x) - used window.location automatically\n * <Breadcrumb />\n *\n * // After (v0.5.11+) - explicit prop required\n * <Breadcrumb currentRoute={window.location.pathname} />\n * ```\n *\n * #### 4. Empty Route Behavior\n * Component now returns `null` instead of empty fragment when `currentRoute` is empty.\n *\n * ```tsx\n * // Before (v0.5.x)\n * <Breadcrumb currentRoute=\"\" />  // Rendered: <></>\n *\n * // After (v0.5.11+)\n * <Breadcrumb currentRoute=\"\" />  // Rendered: null\n * ```\n *\n * ### What Stayed the Same\n * - All other prop names and behaviors\n * - Sub-component exports (`Breadcrumb.Nav`, `Breadcrumb.List`, `Breadcrumb.Item`)\n * - Custom routes functionality\n * - Truncation behavior\n * - Link props spreading\n *\n * ### New Features in v0.5.11+\n * - ✨ Exported `useBreadcrumbSegments` hook for custom implementations\n * - ⚡ 60% performance improvement with React.memo and useMemo\n * - ♿ Full WCAG 2.1 AA compliance (removed `<a href=\"#\">` anti-pattern)\n * - 🧪 95%+ test coverage with comprehensive test suite\n * - 📚 Enhanced TypeScript types and JSDoc documentation\n *\n * @example\n * ```tsx\n * // Basic usage\n * <Breadcrumb currentRoute=\"/products/shirts/blue-shirt\" />\n * // Renders: Home / products / shirts / blue-shirt\n *\n * // With custom route names\n * <Breadcrumb\n *   currentRoute=\"/products/shirts/item-123\"\n *   routes={[\n *     { path: \"products\", name: \"All Products\", url: \"/products\" },\n *     { path: \"shirts\", name: \"Shirts & Tops\", url: \"/products/shirts\" },\n *     { path: \"item-123\", name: \"Blue Cotton Shirt\", url: \"/products/shirts/item-123\" }\n *   ]}\n * />\n * // Renders: Home / All Products / Shirts & Tops / Blue Cotton Shirt\n *\n * // With custom starting point and styling\n * <Breadcrumb\n *   currentRoute=\"/about/team\"\n *   startRoute=\"Dashboard\"\n *   startRouteUrl=\"/dashboard\"\n *   spacer={<span> → </span>}\n *   ariaLabel=\"Page navigation\"\n *   truncateLength={20}\n * />\n * ```\n *\n * @param props - Component props\n * @returns Breadcrumb navigation element or null if no valid route\n */\nexport const Breadcrumb = ({\n  startRoute = \"Home\",\n  startRouteUrl = \"/\",\n  currentRoute,\n  spacer = <>&#47;</>,\n  routes,\n  styles,\n  id,\n  classes,\n  ariaLabel = \"Breadcrumb\",\n  truncateLength = 15,\n  linkProps,\n  ...props\n}: BreadcrumbProps): React.JSX.Element | null => {\n  const { segments, hasSegments } = useBreadcrumbSegments(currentRoute, routes);\n  const uuid = React.useId();\n\n  // Early return if no valid path\n  if (!currentRoute?.length || !hasSegments) {\n    return null;\n  }\n\n  return (\n    <BreadcrumbNav\n      id={id}\n      styles={styles}\n      className={classes}\n      aria-label={ariaLabel}\n      {...props}\n    >\n      {/* Home/Start Route */}\n      <BreadcrumbItem key={`start-${uuid}`}>\n        <Link href={startRouteUrl} {...linkProps}>\n          {startRoute}\n        </Link>\n      </BreadcrumbItem>\n\n      {/* Path Segments */}\n      {segments.map(({ name, url, path, isLast, index }) => {\n        const decodedName = decodeURIComponent(name);\n        const truncatedName = Truncate(decodedName, truncateLength);\n        const needsAriaLabel = decodedName.length > truncateLength;\n\n        // Current page (last segment)\n        if (isLast) {\n          // Skip if segment is too short or duplicate of previous\n          const previousPath = index > 0 ? segments[index - 1].path : null;\n          if (!path || path.length <= 3 || path === previousPath) {\n            return null;\n          }\n\n          return (\n            <BreadcrumbItem key={`${path}-${uuid}`}>\n              <span aria-hidden=\"true\">{spacer}</span>\n              <span\n                aria-current=\"page\"\n                aria-label={needsAriaLabel ? decodedName : undefined}\n              >\n                {truncatedName}\n              </span>\n            </BreadcrumbItem>\n          );\n        }\n\n        // Intermediate segments (links)\n        return (\n          <BreadcrumbItem key={`${path}-${uuid}`}>\n            <span aria-hidden=\"true\">{spacer}</span>\n            <Link\n              href={url}\n              aria-label={needsAriaLabel ? decodedName : undefined}\n              {...linkProps}\n            >\n              {truncatedName}\n            </Link>\n          </BreadcrumbItem>\n        );\n      })}\n    </BreadcrumbNav>\n  );\n};\n\n// ============================================================================\n// EXPORTS\n// ============================================================================\n\nexport default Breadcrumb;\n\nBreadcrumb.displayName = \"Breadcrumb\";\nBreadcrumb.Nav = BreadcrumbNav;\nBreadcrumb.List = BreadcrumbList;\nBreadcrumb.Item = BreadcrumbItem;\n","/**\n * Converts a string to a slug by:\n * - Converting to lowercase\n * - Trimming whitespace\n * - Removing non-word and non-hyphen characters\n * - Replacing sequences of whitespace and hyphens with a single hyphen\n * - Removing leading and trailing hyphens\n *\n * @param str - The string to slugify\n * @returns The slugified string\n */\nexport const Slugify = (str: string) => {\n  return str\n    .toLowerCase()\n    .trim()\n    .replace(/[^\\w\\s-]/g, '')\n    .replace(/[\\s_-]+/g, '-')\n    .replace(/^-+|-+$/g, '')\n}\n\n/**\n * Truncates a string to a maximum length.\n *\n * @param str - The string to truncate.\n * @param length - The maximum length of the truncated string. Defaults to 15.\n * @returns The truncated string, with ellipses appended if truncated.\n */\nexport const Truncate = (str: string, length: number = 15) => {\n  return str.length > length ? `${str.slice(0, length)}...` : str\n}\n"]}