import type { GlyphInfo } from "../types.ts";
/**
 * Normalization mode for shaping
 */
export declare enum NormalizationMode {
    /** No normalization */
    None = 0,
    /** Decompose (NFD-like) */
    Decompose = 1,
    /** Compose (NFC-like) */
    Compose = 2,
    /** Auto-detect based on script */
    Auto = 3
}
/**
 * Canonical Combining Class (ccc) for combining marks
 * Based on Unicode 15.0
 *
 * Optimized with early-exit for common non-combining ranges:
 * - Basic Latin (0000-007F)
 * - Latin-1 Supplement (0080-00FF)
 * - Latin Extended-A/B (0100-024F)
 * - IPA Extensions (0250-02AF)
 * - Spacing Modifier Letters (02B0-02FF) - most are spacing
 * - Greek and Coptic (0370-03FF) - base chars only
 * - Cyrillic (0400-04FF)
 * - Cyrillic Supplement (0500-052F)
 * - CJK ranges (3000+)
 * - Hangul (AC00-D7AF)
 * @param cp Unicode codepoint to check
 * @returns Canonical combining class (0 for non-combining characters, 1-255 for combining marks)
 */
export declare function getCombiningClass(cp: number): number;
/**
 * Reorder combining marks according to canonical combining class
 * @param infos Array of glyph information objects (modified in place)
 */
export declare function reorderMarks(infos: GlyphInfo[]): void;
/**
 * Decompose a codepoint if it has a canonical decomposition
 * @param cp Unicode codepoint to decompose
 * @returns Array of decomposed codepoints, or null if character has no decomposition
 */
export declare function decompose(cp: number): number[] | null;
/**
 * Try to compose a base character with a combining mark
 * Returns the composed character or null if no composition exists
 * @param base Base character codepoint
 * @param combining Combining mark codepoint
 * @returns Composed character codepoint, or null if no composition exists
 */
export declare function tryCompose(base: number, combining: number): number | null;
/**
 * Apply normalization to glyph infos
 * @param infos Array of glyph information objects
 * @param mode Normalization mode (None, Decompose, Compose, or Auto)
 * @returns Normalized array of glyph information objects
 */
export declare function normalize(infos: GlyphInfo[], mode: NormalizationMode): GlyphInfo[];