static int
compile(const char* source) {
extern FILE* yyin;
extern int yyparse();
char *fout = NULL;
size_t fsz;
yyin = fopen(source, "r");
if (!yyin)
fatal("Could not open %s\n", source);
/* Call the parser; currently a bison-generated parser */
yyparse();
if (stdoutFlag)
prnt_code();
fsz = strlen(source) + 2;
if (!(fout = calloc(1, fsz)))
fatal("%s: could not allocate memory\n", getprogname());
strlcpy(fout, source, fsz);
strlcat(fout, "b", fsz);
save_code(fout);
if (yyin)
fclose(yyin);
if (fout)
free(fout);
return 0;
}
int main (int argc, char *argv[]) {
char buffer[10000];
token tokens[500];
int t; //total number of tokens
int i; //general use counter
int res;
FILE *fp;
if (argc < 2) { //check if the number of arguments is correct
printf("Usage: %s <input_file> -o <output_file>\n", argv[0]);
return 1;
}
else if ((fp = fopen(argv[1], "r")) == NULL) { //try to open the input file
printf("%s\n", strerror(errno));
return 2;
}
else {
/*Phase 0: Put instuctions from the input file to the buffer serialized*/
res = serialize_input(buffer, fp);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
printf("Phase 0: Put instuctions from the input file to the buffer serialized:\n%s\n\n", buffer);
}
close(fp);
if (res == 0) {
puts("Empty input file.");
return 3;
}
}
/*Phase 1: Parse the code*/
validate_tokens(buffer);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
printf("Phase 1: Remove lines with invalid tokens:\n%s\n\n", buffer);
}
/*Phase 2: Extract the tokens*/
t = extract_tokens(buffer, tokens);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
puts("Phase 2: Extract the tokens:");
print_tokens(tokens, t);
putchar('\n');
}
/*Phase 3: Do syntax analysis on the tokens*/
t = analize_tokens(tokens, t);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
puts("Phase 3: Do syntax analysis on the tokens:");
print_tokens(tokens, t);
putchar('\n');
}
/*Phase 4: Do optimization on the tokens*/
t = optimize_tokens(tokens, t);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
puts("Phase 4: Do optimization on the tokens:");
print_tokens(tokens, t);
putchar('\n');
}
/*Phase 5: Do code generation based on the tokens*/
generate_code(buffer, tokens, t);
/*If is on DEBUG_MODE print debuggin info*/
if (DEBUG_MODE) {
printf("Phase 5: Do code generation based on the tokens:\n%s\n\n", buffer);
}
/*Print errors buffer*/
if (error_cnt != 0) {
puts(error_buffer);
}
else {
puts("No Errors");
}
/*Final Phase: Save the code in a file*/
if (argc == 4 && strcmp(argv[2], "-o") == 0) { //check if user provided output file name
save_code(buffer, argv[3]);
}
else {
save_code(buffer, "out.c");
}
return 0;
}
