PARA_ERROR(OPEN, "failed to open file"), \
PARA_ERROR(CHDIR_PERM, "insufficient permissions to chdir"), \
PARA_ERROR(EMPTY, "file empty"), \
PARA_ERROR(OPEN, "failed to open file"), \
PARA_ERROR(CHDIR_PERM, "insufficient permissions to chdir"), \
PARA_ERROR(EMPTY, "file empty"), \