/**
 * EPB v2 library constants.
 *
 * v1's 39-glyph experiment was never published.  The founder selected a
 * smaller 29-glyph Library: letters, one space, comma, and period.  Exact
 * submitted text is retained separately, so this alphabet is only the
 * deterministic placement representation.
 */
export const ALPHABET = "abcdefghijklmnopqrstuvwxyz ,.";
export const ADDRESS_ALPHABET = "0123456789abcdefghijklmnopqrstuvwxyz-_~";
export const RADIX = 29;
export const SPACE = 26;
export const LINE_LEN = 80;
export const LINES_PER_PAGE = 40;
export const PAGE_LEN = 3_200;
export const PAGES_PER_VOLUME = 410;
export const VOLUME_LEN = 1_312_000;
export const VOLUMES_PER_SHELF = 32;
export const SHELVES_PER_WALL = 5;
export const WALLS_PER_HEXAGON = 4;
export const VOLUMES_PER_HEXAGON = 640;
export const ALGORITHM_VERSION = "epb2";
export const NORMALIZATION_VERSION = "norm-v2";
export const MASK_VERSION = "mask-v1";