/** styled-text tokenizing, wrapping, and SVG `<text>` layout. */
import type { MessageEntity } from "@yaebal/types";
import type { Palette } from "./theme.js";
/** a positioned, self-sizing chunk of content. */
export interface Block {
    w: number;
    h: number;
    render: (x: number, y: number) => string;
}
export interface Run {
    text: string;
    space: boolean;
    b?: boolean;
    i?: boolean;
    u?: boolean;
    st?: boolean;
    mono?: boolean;
    spoiler?: boolean;
    link?: boolean;
}
export declare function layoutText(text: string, entities: MessageEntity[], maxW: number, base: string, p: Palette): Block;
/** plain (unstyled) word-wrap for system-message pills and webpage-card descriptions. */
export declare function wrapPlainText(text: string, maxChars: number): string[];
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