compilation/spf.lark

start: (instruction)* TERMINAL

instruction: KEYWORD TERMINAL
		   | declaration TERMINAL

declaration: TYPE VARIABLE
		   | TYPE VARIABLE "=" expression

expression: literal
		  | list
		  | range
		  | expression operator expression
		  | operator expression

literal: ENTIER
	   | BOOLEEN
	   | texte

texte: "\"" STRING "\""

list: "[" expression? ("," expression)* "]"

range: "[" ENTIER? ":" ENTIER? "]"

controls: test
		| loop

operator: PLUS
		| MINUS
		| TIMES
		| DIVIDE // TODO: not complete

PLUS: "+"
MINUS: "-"
TIMES: "*"
DIVIDE: "/"

test: "si" expression "alors" "{" instruction* "}"

loop: "si" expression "alors" "{" (instruction)* "}"

COMMENT: "#" /[^\n]/
%ignore COMMENT

TERMINAL: ";"

VARIABLE: /([a-z]|[A-Z]|_)+([a-z]|[A-Z]|[0-9]|_)+/ // TODO: ajouter accents

TYPE: "booléen" | "entier" | "texte" | "liste"

KEYWORD: "ajouter" | "afficher"

ENTIER: /[1-9][0-9]*/

BOOLEEN: "vrai" | "faux"

STRING: /\w+/