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	brainfuck.y - brcon2024-hackathons - Bitreichcon 2024 Hackathons
	git clone git://bitreich.org/brcon2024-hackathons git://enlrupgkhuxnvlhsf6lc3fz…
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	---
	brainfuck.y (860B)
	---
	1 %{
	2 #include <stdio.h>
	3
	4 void yyerror(const char *s);
	5 int yylex(void);
	6
	7 %}
	8
	9 %token INCPTR DECPTR INCVAL DECVAL OUTPUT INPUT LOOPSTART LOOPEND
	10
	11 %%
	12
	13 program:
	14 /* empty */
	15 \| program command
	16 ;
	17
	18 command:
	19 INCPTR { printf("Move pointer to the right\n"); }
	20 \| DECPTR { printf("Move pointer to the left\n"); }
	21 \| INCVAL { printf("Increment the value at the pointer\n"); }
	22 \| DECVAL { printf("Decrement the value at the pointer\n"); }
	23 \| OUTPUT { printf("Output the value at the pointer\n"); }
	24 \| INPUT { printf("Input a value and store it at the pointer\n");…
	25 \| loop
	26 ;
	27
	28 loop:
	29 LOOPSTART program LOOPEND
	30 {
	31 printf("Start of loop\n");
	32 printf("End of loop\n");
	33 }
	34 ;
	35
	36 %%
	37
	38 void yyerror(const char *s) {
	39 fprintf(stderr, "Error: %s\n", s);
	40 }
	41
	42 int main(void) {
	43 return yyparse();
	44 }
	45