/media/sda-magnetic/david/Extern-Magnetic-2022-06-29/Extern01/Dokumente-2020-11-16/disk10-ab-2020-01-10/02-debian-pc2-work/informatik/bash-programming/lex-yacc-bash-etc/grammatik01.txt


numexpr     ->  numexpr + term | term
term        ->  term * factor | factor
factor      ->  id | const | (numexpr)