138 lines
2.1 KiB
Plaintext
138 lines
2.1 KiB
Plaintext
%{
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#include <stdio.h>
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#include <string.h>
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extern int yylineno;
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extern int yylex();
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extern int yyparse();
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void yyerror(const char *str)
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{
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fprintf(stderr, "Error: %s, line %d\n", str, yylineno);
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}
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int yywrap()
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{
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return 1;
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}
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int main()
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{
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yyparse();
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return 0;
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}
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%}
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%locations
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%token COMMENT PL_PID_CONF PL_SET_TEMP PL_WAIT_FOR_TEMP PL_WAIT_FOR_TIME PL_SET_RAMP PL_LOUDSPEAKER_SET PL_OFF PL_CLEAR_FLAGS PL_DIGIO_CONF PL_DIGIO_SET PL_DIGIO_WAIT NEWLINE LITERAL
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%token <float_value> NUMBER
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%token <int_value> INT_NUMBER
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%type <float_value> any_num
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%union
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{
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int int_value;
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float float_value;
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}
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%%
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program: /* empty */
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| program command
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| program NEWLINE
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| program cmt_line
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;
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command:
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command_core NEWLINE
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command_core cmt_line
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;
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command_core:
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pid_conf | temp_set | wait_time | wait_temp | temp_ramp | beep | temp_off | clear_flags | digio_conf | digio_set | digio_wait;
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pid_conf: PL_PID_CONF any_num any_num any_num any_num any_num any_num
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{
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printf("PID Config\n");
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}
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;
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temp_set: PL_SET_TEMP any_num
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{
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printf("Target temp set: %f\n", $2);
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}
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;
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wait_time: PL_WAIT_FOR_TIME any_num
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{
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printf("Wait for %f seconds\n", $2);
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}
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;
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wait_temp: PL_WAIT_FOR_TEMP any_num
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{
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printf("Wait for temperature %f\n", $2);
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}
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;
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temp_ramp: PL_SET_RAMP any_num any_num
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{
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printf("Temperature ramp. Target %f, duration: %f\n", $2, $3);
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}
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;
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cmt_line: COMMENT NEWLINE
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{
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printf("Comment line detected\n");
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};
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beep: PL_LOUDSPEAKER_SET INT_NUMBER
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{
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printf("Beep: %d\n", $2);
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}
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PL_LOUDSPEAKER_SET NUMBER
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{
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printf("Warning: Float value casted to int!\n");
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printf("Beep %u\n", (unsigned int)$2);
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};
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temp_off: PL_OFF
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{
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printf("Turn off oven\n");
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}
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;
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clear_flags: PL_CLEAR_FLAGS
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{
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printf("Clear flags\n");
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}
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;
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digio_conf: PL_DIGIO_CONF INT_NUMBER INT_NUMBER
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{
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printf("Configure digio pin\n");
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};
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digio_set: PL_DIGIO_SET INT_NUMBER INT_NUMBER
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{
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printf("Configure digio pin\n");
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};
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digio_wait: PL_DIGIO_WAIT INT_NUMBER INT_NUMBER
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{
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printf("Configure digio pin\n");
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};
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/* Matches any number format that can be interpreted as float */
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any_num : NUMBER | INT_NUMBER
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{
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$$ = (float)$1;
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};
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%%
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