(cd "$(dirname "$0")" && \
  flex -oQuantity.lex.c Quantity.l && \
  bison -oQuantity.tab.c Quantity.y && \
  sed -i '1s|^|// clang-format off\n|' Quantity.tab.c && \
  sed -i '1s|^|// clang-format off\n|' Quantity.lex.c \
)