Pipe Angular para Linha digitável de Boletos

codigo-barras.pipe.ts

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  name: 'codigoBarras'
})
export class CodigoBarrasPipe implements PipeTransform {
  transform(value: string, args?: any): any {
    if (value) {
      value = value.replace(/\D/g, '');

      if (value.length > 47) {
        value = value.substring(0, 47);
      }

      if (value.length === 47) {
          value = value.replace(/(\d{5})(\d{5})(\d{5})(\d{6})(\d{5})(\d{6})(\d{1})(\d+)/, '$1.$2 $3.$4 $5.$6 $7 $8');
      }
    }
    return value;
  }
}