import { AstroConfig } from 'astro';
/**
 * Checks if a file is a page file.
 * @param filePath The path to the file.
 * @param config The Astro config.
 * @returns True if the file is a page file, false otherwise.
 */
export declare function isPageFile(filePath: string, config: AstroConfig): boolean;
/**
 * Converts a route segment to a route path.
 * @param segment The route segment.
 * @returns The route path.
 */
export declare function toRoutePath(segment: string): string;
/**
 * Extracts parameters from a route segment.
 * @param segment The route segment.
 * @returns An array of parameters.
 */
export declare function extractParams(segment: string): string[];
/**
 * Strips the file extension and returns the route segment name.
 * @param filename The filename to convert (e.g. `"[slug].astro"`).
 * @returns The segment without extension (e.g. `"[slug]"`).
 * @example fileToSegment("about.astro") // → "about"
 * @example fileToSegment("[slug].astro") // → "[slug]"
 */
export declare function fileToSegment(filename: string): string;
/**
 * Checks if a route segment is dynamic (contains a parameter).
 * @param segment The route segment to check.
 * @returns `true` if the segment is dynamic.
 * @example isDynamic("[slug]") // → true
 * @example isDynamic("about") // → false
 */
export declare function isDynamic(segment: string): boolean;
/**
 * Checks if a route segment is a catch-all parameter.
 * @param segment The route segment to check.
 * @returns `true` if the segment is a catch-all.
 * @example isCatchAll("[...slug]") // → true
 * @example isCatchAll("[slug]") // → false
 */
export declare function isCatchAll(segment: string): boolean;
/**
 * Checks if a segment represents an index route.
 * @param segment The route segment to check.
 * @returns `true` if the segment is `"index"`.
 */
export declare function isIndex(segment: string): boolean;
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