import { normalizePathSep } from './normalize-path-sep';
/**
 * Removes the file extension for a page and the trailing `index` if it exists
 * making sure to not return an empty string. The page head is not touched
 * and returned as it is passed. Examples:
 *   - `/foo/bar/baz/index.js` -> `/foo/bar/baz`
 *   - `/foo/bar/baz.js` -> `/foo/bar/baz`
 *
 * @param pagePath A page to a page file (absolute or relative)
 * @param options.extensions Extensions allowed for the page.
 * @param options.keepIndex When true the trailing `index` is _not_ removed.
 */ export function removePagePathTail(pagePath, options) {
    pagePath = normalizePathSep(pagePath).replace(new RegExp("\\.+(?:" + options.extensions.join('|') + ")$"), '');
    if (options.keepIndex !== true) {
        pagePath = pagePath.replace(/\/index$/, '') || '/';
    }
    return pagePath;
}

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