Chapitre 3 Regular expressions

expr_list ::=
[ [ expr_list_continue ] ]

expr_list_continue ::=
[ { expr COMMA } expr ]

expr ::=
[ NAME | VALUE | STRING | LPAR expr RPAR | expr PLUS expr | expr MINUS expr | expr TIMES expr | expr DIV expr | CEIL expr | MINUS expr | LLIST expr_list RLIST | BAR expr BAR ]

reg_expr ::=
expr

expr_list	::=	[ [ expr_list_continue ] ]
expr_list_continue	::=	[ { expr COMMA } expr ]
expr	::=	[ NAME \| VALUE \| STRING \| LPAR expr RPAR \| expr PLUS expr \| expr MINUS expr \| expr TIMES expr \| expr DIV expr \| CEIL expr \| MINUS expr \| LLIST expr_list RLIST \| BAR expr BAR ]
reg_expr	::=	expr