Style Dictionary Reverse Lookup Format

reverseLookupFormat.js

module.exports = function(dictionary, platform) {
  // This will store the references
  const toRet = {};

  dictionary.allProperties.forEach((token) => {
    let original = token.original.value;
    // If the token has a reference, store it
    if (typeof original === 'string' && original.indexOf('{') > -1) {
      let reference = original.replace(/{|}/g,'');
      // Add an array to the lookup object if it is not there
      toRet[reference] = toRet[reference] || [];
      // Add the token's path to the reference array
      toRet[reference].push(token.path.join('.'))
    }
  });
  
  // Output a simple JSON string
  return JSON.stringify(toRet, null, 2);
}

// File will look like this:
/*
{
  "color.base.white.value": [
    "color.background.base",
    "color.font.inverse.base"
  ],
  "color.base.blue_grey.100.value": [
    "color.background.alt",
    "color.background.disabled"
  ],
*/