import type { GlyphInfo } from "../../types.ts";
/**
 * Syriac shaper
 * Handles Syriac script (Estrangela, Serto, Eastern)
 *
 * Syriac is a right-to-left script with:
 * - Joining behavior (like Arabic)
 * - Vowel marks (diacritics above/below)
 * - Multiple script styles (Estrangela, Serto, East Syriac)
 * - Dalath/Rish distinction marks
 */
/**
 * Syriac joining types
 */
export declare enum SyriacJoining {
    NonJoining = 0,
    RightJoining = 1,
    DualJoining = 2,
    LeftJoining = 3,
    Transparent = 4,
    Causing = 5
}
/**
 * Syriac character categories
 */
export declare enum SyriacCategory {
    Other = 0,
    Letter = 1,
    Diacritic = 2,
    Punctuation = 3,
    Digit = 4
}
/**
 * Get Syriac joining type for codepoint
 */
export declare function getSyriacJoining(cp: number): SyriacJoining;
/**
 * Get Syriac category
 */
export declare function getSyriacCategory(cp: number): SyriacCategory;
/**
 * Syriac positional forms
 */
export declare enum SyriacForm {
    Isolated = 0,
    Initial = 1,
    Medial = 2,
    Final = 3
}
/**
 * Determine Syriac positional form
 */
export declare function getSyriacForm(prev: SyriacJoining, current: SyriacJoining, next: SyriacJoining): SyriacForm;
/**
 * Syriac feature masks
 */
export declare const SyriacFeatureMask: {
    readonly ccmp: 1;
    readonly locl: 2;
    readonly isol: 4;
    readonly init: 8;
    readonly medi: 16;
    readonly fina: 32;
    readonly rlig: 64;
    readonly calt: 128;
    readonly liga: 256;
    readonly stch: 512;
};
/**
 * Set up masks for Syriac shaping
 */
export declare function setupSyriacMasks(infos: GlyphInfo[]): void;
/**
 * Get default Syriac features in order
 */
export declare function getSyriacFeatures(): string[];
/**
 * Check if script uses Syriac shaper
 */
export declare function usesSyriac(script: string): boolean;