docs: function isSandhanganSesigeg(position, input) {
      var length = input.length,
          chr = input.charAt(position);
  
      if (chr == 'h' || chr == 'r') {
          // bedah = true
          // bar = true
          // wahyu = true
          // parsa = true
          // 
          // kretu = false -> wyanjana
          // prahara = false -> wyanjana
          if (position == length - 1) {
              return true;
          } else if (!isSwara(input.charAt(position + 1))) {
              return true;
          }
  
          return false;
      } else if (chr == 'g') {
          // bang = true
          // lag = false
          if (position == length - 1 && input.charAt(position - 1) == 'n') {
              return true;
          } else if (position != length -1 && input.charAt(position - 1) == 'n' && !isSwara(input.charAt(position + 1))) {
              // bangsa = true
              // bangga = true
              return true;
          }
  
          return false;
      } else if (chr == 'n' && position != length - 1) {
          // bangsa = true
          // banga = false
          if (input.charAt(position + 1) == 'g' && !isSwara(input.charAt(position + 2))) {
              return true;
          }
  
          return false;
      }
  
      return false;
  }