code: function filterNames() {
      console.log('\nfiltering names');
      console.time(colors.green('names filtered'));
  
      // Start clean
      shell.rm('-f', ['dist/names_keep.json', 'dist/names_discard.json']);
  
      // filter by keepTags (move from discard -> keep)
      filters.keepTags.forEach(s => {
          let re = new RegExp(s, 'i');
          for (let key in discard) {
              let tag = key.split('|', 2)[0];
              if (re.test(tag)) {
                  keep[key] = discard[key];
                  delete discard[key];
              }
          }
      });
  
      // filter by discardKeys (move from keep -> discard)
      filters.discardKeys.forEach(s => {
          let re = new RegExp(s, 'i');
          for (let key in keep) {
              if (re.test(key)) {
                  discard[key] = keep[key];
                  delete keep[key];
              }
          }
      });
  
      // filter by discardNames (move from keep -> discard)
      filters.discardNames.forEach(s => {
          let re = new RegExp(s, 'i');
          for (let key in keep) {
              let name = key.split('|', 2)[1];
              if (re.test(name)) {
                  discard[key] = keep[key];
                  delete keep[key];
              }
          }
      });
  
      fs.writeFileSync('dist/names_discard.json', stringify(sort(discard)));
      fs.writeFileSync('dist/names_keep.json', stringify(sort(keep)));
      console.timeEnd(colors.green('names filtered'));
  }
docs: `filterNames()` will process a `dist/names_all.json` file, splitting the data up into 2 files:  `dist/names_keep.json` - candidates for suggestion presets `dist/names_discard.json` - everything else  The file format is identical to the `names_all.json` file: "key/value|name": count "shop/coffee|Starbucks": 8284