git.r.bdr.sh - rbdr/forum/blob - src/utils/glyph_hash.js

   1 const internals = {
   2   kSplitterRegex: /.{1,8}/g,
   3   kGlyphs: ['☽', '☆', '♢', '♡', '╱', '╲', '╳', '〰', '▷', '⏊', '〒', '▢', '◯', '⏃', '⏀', '⏆']
   4 };
   5
   6 // Return a glyph with color based on a 4 byte fragment of a UUIDv4
   7 const getGlyphHashFragment = function (uuidFragment) {
   8
   9   const glyphIndex = parseInt(uuidFragment.substring(0, 2), 16) % 16;
  10   return {
  11     glyph: internals.kGlyphs[glyphIndex],
  12     color: `#${uuidFragment.substring(2, 8)}`
  13   };
  14 };
  15
  16 // Return an array of glyphs based on a UUIDv4
  17 export const getGlyphHash = function (uuid) {
  18
  19   const hashFragments = uuid.replace(/[-]/g, '').match(internals.kSplitterRegex);
  20   return hashFragments.map(getGlyphHashFragment);
  21 };