/**
 * Where painted text is cut so that the browser sets it as it was
 * measured. Chrome sets the first of two CJK marks that meet half width
 * when it measures or paints them in one run (`cjkMarkCuts`); text the
 * layout measured mark by mark must be painted mark by mark, and text it
 * measured whole (the browser's trimming included) must be painted whole.
 * Which one it was depends on how the line was set, so the renderers pick
 * the rule the measurer followed ({@link MarkCutRule}).
 */
/**
 * How a string was measured, and so where it is cut when painted:
 * - `'text'`: whole, by `measureTextWidth` (design text, list markers,
 *   running heads): cut where it cuts, the marks Latin text shares with
 *   Chinese (“ ” ‘ ’ ·) counted when the string holds CJK text.
 * - `'words'`: word by word, as the word-by-word breakers measure a line
 *   (Knuth–Plass, the first-fit breaker): each word between breaking
 *   spaces as `'text'`, so `“end.”“Yes”` in a line that also holds 楼
 *   keeps the browser's trimming, as when it was measured.
 * - `'composed'`: character by character, as the CJK composer measures
 *   (`VDTLine.cjkComposed`): every two marks that meet where either is a
 *   CJK character, the shared marks included, whether or not the line
 *   holds a Han character (`hungry.”“Stay`). Two marks inside a Western
 *   run, which it measured whole, stay together.
 */
export type MarkCutRule = 'text' | 'words' | 'composed';
/** The offsets (UTF-16) at which `text` is painted apart under `rule`;
 *  empty when it is painted whole. */
export declare function markCuts(text: string, rule: MarkCutRule): number[];
/** `text` cut at {@link markCuts}: one piece when there is no cut. */
export declare function markPieces(text: string, rule: MarkCutRule): string[];
/** The rule a line of body text, a caption or a cell was measured with:
 *  character by character on a line of the CJK composer, word by word on
 *  any other. */
export declare function lineMarkCuts(line: {
    cjkComposed?: boolean;
}): MarkCutRule;
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