/**
 * Share-URL helpers, promoted from the VibeControls MFE so every product can
 * normalize/copy share links consistently. Generic: the allowlist covers
 * product-specific share prefixes plus the generic `/share/accept/` route.
 */
/**
 * Rewrite a same-surface share URL onto the current window origin. Only paths
 * in {@link SHARE_PATH_ALLOWLIST} are rewritten; everything else (and any
 * non-http(s) protocol, or SSR with no `window`) is returned verbatim.
 */
export declare function normalizeShareUrl(url: string): string;
/** Escape a string for safe interpolation into an HTML attribute value. */
export declare function escapeHtmlAttribute(value: string): string;
/**
 * Copy text to the clipboard with a robust fallback. Prefers the async
 * Clipboard API; falls back to a hidden `<textarea>` + `execCommand('copy')`
 * for older browsers / insecure contexts. Rejects if the copy fails.
 */
export declare function copyTextToClipboard(text: string): Promise<void>;
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