import type { GlyphInfo } from "../../types.ts";
/**
 * Universal Shaping Engine (USE) categories
 * Based on Unicode USE specification
 */
export declare enum UseCategory {
    O = 0,// Other
    B = 1,// Base
    CGJ = 2,// Combining Grapheme Joiner
    CM = 3,// Consonant modifier
    CS = 4,// Consonant with stacker
    F = 5,// Final
    FM = 6,// Final modifier
    GB = 7,// Generic base
    H = 8,// Halant/Virama
    HN = 9,// Halant or Nukta
    IND = 10,// Independent
    J = 11,// Joiner
    N = 12,// Nukta
    R = 13,// Repha
    S = 14,// Symbol
    SB = 15,// Symbol modifier
    SE = 16,// Syllable ending
    SUB = 17,// Subjoined
    VS = 18,// Variation selector
    WJ = 19,// Word joiner
    ZWJ = 20,// Zero Width Joiner
    ZWNJ = 21,// Zero Width Non-Joiner
    V = 22,// Vowel (independent)
    VD = 23,// Vowel dependent
    VMAbv = 24,// Vowel modifier above
    VMBlw = 25,// Vowel modifier below
    VMPre = 26,// Vowel modifier pre
    VMPst = 27,// Vowel modifier post
    VAbv = 28,// Vowel above
    VBlw = 29,// Vowel below
    VPre = 30,// Vowel pre
    VPst = 31,// Vowel post
    SMAbv = 32,// Syllable modifier above
    SMBlw = 33,// Syllable modifier below
    FAbv = 34,// Final above
    FBlw = 35,// Final below
    FPst = 36,// Final post
    MAbv = 37,// Medial above
    MBlw = 38,// Medial below
    MPre = 39,// Medial pre
    MPst = 40
}
/**
 * Check if a script uses USE
 */
export declare function usesUSE(script: string): boolean;
/**
 * Get USE category for a codepoint
 */
export declare function getUseCategory(cp: number): UseCategory;
/** USE feature masks */
export declare const UseFeatureMask: {
    readonly rphf: 1;
    readonly pref: 2;
    readonly blwf: 4;
    readonly abvf: 8;
    readonly pstf: 16;
    readonly half: 32;
    readonly cjct: 64;
    readonly vatu: 128;
    readonly pres: 256;
    readonly abvs: 512;
    readonly blws: 1024;
    readonly psts: 2048;
    readonly haln: 4096;
};
/**
 * Set up masks for USE shaping
 */
export declare function setupUseMasks(infos: GlyphInfo[]): void;
/**
 * Reorder USE syllables (pre-base vowels, reph)
 */
export declare function reorderUSE(infos: GlyphInfo[]): void;