int main(int argc, char **argv){
Buffer *ptr_Buffer; /* pointer to Buffer structure */
FILE *fi; /* input file handle */
int loadsize = 0; /*the size of the file loaded in the buffer */
int ansi_c = !ANSI_C; /* ANSI C compliancy flag */
/* Check if the compiler option is set to compile ANSI C */
/* __DATE__, __TIME__, __LINE__, __FILE__, __STDC__ are predefined preprocessor macros*/
if (ansi_c){
err_printf("Date: %s Time: %s", __DATE__, __TIME__);
err_printf("ERROR: Compiler is not ANSI C compliant!\n");
exit(1);
}
/* missing file name or/and mode parameter */
if (argc <= 2){
err_printf("\nDate: %s Time: %s", __DATE__, __TIME__);
err_printf("\nRuntime error at line %d in file %s\n", __LINE__, __FILE__);
err_printf("%s\b\b\b\b%s%s", argv[0], ": ", "Missing parameters.");
err_printf("Usage: platybt source_file_name mode");
exit(1);
}
/* create a source code input buffer */
switch (*argv[2]){ /*gets the first caracter of the mode argument*/
case 'f': case 'a': case 'm': break;
default:
err_printf("%s%s%s", argv[0], ": ", "Wrong mode parameter.");
exit(1);
}
/*create the input buffer */
ptr_Buffer = b_create(INIT_CAPACITY, INC_FACTOR, *argv[2]);
if (ptr_Buffer == NULL){
err_printf("%s%s%s", argv[0], ": ", "Could not create buffer.");
exit(1);
}
/* open the source file */
if ((fi = fopen(argv[1], "r")) == NULL){
err_printf("%s%s%s%s", argv[0], ": ", "Cannot open file: ", argv[1]);
exit(1);
}
/* load a source file into the input buffer */
printf("Reading file %s ....Please wait\n", argv[1]);
loadsize = b_load(fi, ptr_Buffer);
if (loadsize == R_FAIL_1)
err_printf("%s%s%s", argv[0], ": ", "Error in loading buffer.");
/* close the source file */
fclose(fi);
/*find the size of the file */
if (loadsize == LOAD_FAIL){
printf("The input file %s %s\n", argv[1], "is not completely loaded.");
printf("Input file size: %ld\n", get_filesize(argv[1]));
}
/* set a mark at the last char in the buffer*/
b_setmark(ptr_Buffer, b_size(ptr_Buffer));
/* display the contents of the input buffer */
display(ptr_Buffer);
/* pack the buffer
* if possible, add end-of-file character (EOF) to the buffer
* display again
*/
if (b_pack(ptr_Buffer)){
if (!b_addc(ptr_Buffer, EOF))
err_printf("%s%s%s", argv[0], ": ", "Error in writing to buffer.");
display(ptr_Buffer);
}
/* destroy the buffer */
b_destroy(ptr_Buffer);
/* make the buffer invalid
It is not necessary here because the function terminates anyway,
but will prevent run-time errors and crashes in future expansions
*/
ptr_Buffer = NULL;
/*return success */
return (0);
}
/* main function takes a PLATYPUS source file as
* an argument at the command line.
* usage: parser source_file_name [-stz size][-sts:A | -sts:D]
*/
int main(int argc, char ** argv){
FILE *fi; /* input file handle */
int loadsize = 0; /*the size of the file loaded in the buffer */
int st_def_size = ST_DEF_SIZE; /* Sumbol Table default size */
char sort_st = 0; /*Symbol Table sort switch */
int ansi_c = !ANSI_C; /* ANSI C flag */
/* Check if the compiler option is set to compile ANSI C */
/* __DATE__, __TIME__, __LINE__, __FILE__, __STDC__ are predefined preprocessor macros*/
if(ansi_c){
err_printf("Date: %s Time: %s",__DATE__, __TIME__);
err_printf("ERROR: Compiler is not ANSI C compliant!\n");
exit(1);
}
/*check for correct arrguments - source file name */
if (argc <= 1){
/* __DATE__, __TIME__, __LINE__, __FILE__ are predefined preprocessor macros*/
err_printf("Date: %s Time: %s",__DATE__, __TIME__);
err_printf("Runtime error at line %d in file %s", __LINE__, __FILE__);
err_printf("%s%s%s",argv[0],": ","Missing source file name.");
err_printf("%s%s%s","Usage: ", "parser", " source_file_name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
/* check for optional switches - symbol table size and/or sort */
if (argc == 3){
if (strcmp(argv[2],"-sts:A") && strcmp(argv[2],"-sts:D") ){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
if(strcmp(argv[2],"-sts:A"))
sort_st = 'D';
else
sort_st = 'A';
}
/* symbol table size specified */
if (argc == 4){
if (strcmp(argv[2],"-stz")){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
/* convert the symbol table size */
st_def_size = atoi(argv[3]);
if (st_def_size <= 0){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
}
if (argc == 5){
if (strcmp(argv[2],"-stz")){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
/* convert the symbol table size */
st_def_size = atoi(argv[3]);
if (st_def_size <= 0){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
if (strcmp(argv[4],"-sts:A")&& strcmp(argv[4],"-sts:D") ){
err_printf("%s%s%s",argv[0],": ","Invalid switch.");
err_printf("%s%s\b\b\b\b%s","Usage: ", argv[0], " source file name [-stz size][-sts:A | -sts:D]");
exit(EXIT_FAILURE);
}
if(strcmp(argv[4],"-sts:A"))
sort_st = 'D';
else
sort_st = 'A';
}
/* create a source code input buffer - multiplicative mode */
sc_buf = b_create(INIT_CAPACITY,INC_FACTOR,'m');
if (sc_buf == NULL){
err_printf("%s%s%s",argv[0],": ","Could not create source buffer");
exit(EXIT_FAILURE);
}
/* create symbol table */
sym_table = st_create(st_def_size);
if (!sym_table.st_size){
err_printf("%s%s%s",argv[0],": ","Could not create symbol table");
exit (EXIT_FAILURE);
}
/*open source file */
if ((fi = fopen(argv[1],"r")) == NULL){
err_printf("%s%s%s%s",argv[0],": ", "Cannot open file: ",argv[1]);
exit (1);
}
/* load source file into input buffer */
printf("Reading file %s ....Please wait\n",argv[1]);
loadsize = b_load (fi,sc_buf);
if(loadsize == R_FAIL_1)
err_printf("%s%s%s",argv[0],": ","Error in loading buffer.");
/* close source file */
fclose(fi);
/*find the size of the file */
if (loadsize == LOAD_FAIL){
printf("The input file %s %s\n", argv[1],"is not completely loaded.");
printf("Input file size: %ld\n", get_filesize(argv[1]));
}
/* pack and display the source buffer */
if(b_pack(sc_buf)){
display(sc_buf);
}
/* create string Literal Table */
str_LTBL = b_create(INIT_CAPACITY,INC_FACTOR,'a');
if (str_LTBL == NULL){
err_printf("%s%s%s",argv[0],": ","Could not create string buffer");
exit(EXIT_FAILURE);
}
/*registrer exit function */
atexit(garbage_collect);
/*Testbed for buffer, scanner,symbol table and parser*/
/* Initialize scanner */
scanner_init(sc_buf);
/* Add SEOF to input buffer */
b_addc(sc_buf, EOF);
/* Start parsing */
printf("\nParsing the source file...\n\n");
parser(sc_buf);
/* print Symbol Table */
/*
if(sym_table.st_size && sort_st){
st_print(sym_table);
if(sort_st){
printf("\nSorting symbol table...\n");
st_sort(sym_table,sort_st);
st_print(sym_table);
}
}
*/
return (EXIT_SUCCESS); /* same effect as exit(0) */
}/*end of main */
/* main function takes a PLATYPUS source file as
* an argument at the command line.
* usage: scanner source_file_name"
*/
int main(int argc, char ** argv){
Buffer *sc_buf; /* pointer to input (source) buffer */
FILE *fi; /* input file handle */
Token t; /* token produced by the scanner */
int loadsize = 0; /*the size of the file loaded in the buffer */
int ansi_c = !ANSI_C; /* ANSI C compliancy flag */
/* Check if the compiler option is set to compile ANSI C */
/* __DATE__, __TIME__, __LINE__, __FILE__, __STDC__ are predefined preprocessor macros*/
if(ansi_c){
err_printf("Date: %s Time: %s",__DATE__, __TIME__);
err_printf("ERROR: Compiler is not ANSI C compliant!\n");
exit(1);
}
/*check for correct arrguments - source file name */
if (argc <= 1){
/* __DATE__, __TIME__, __LINE__, __FILE__ are predefined preprocessor macros*/
err_printf("Date: %s Time: %s",__DATE__, __TIME__);
err_printf("Runtime error at line %d in file %s", __LINE__, __FILE__);
err_printf("%s%s%s",argv[0],": ","Missing source file name.");
err_printf("%s%s%s","Usage: ", "scanner", " source_file_name");
exit(1);
}
/* create a source code input buffer - multiplicative mode */
sc_buf = b_create(INIT_CAPACITY,INC_FACTOR,'m');
if (sc_buf == NULL){
err_printf("%s%s%s",argv[0],": ","Could not create source buffer");
exit(1);
}
/*open source file */
if ((fi = fopen(argv[1],"r")) == NULL){
err_printf("%s%s%s%s",argv[0],": ", "Cannot open file: ",argv[1]);
exit (1);
}
/* load source file into input buffer */
printf("Reading file %s ....Please wait\n",argv[1]);
loadsize = b_load (fi,sc_buf);
if(loadsize == R_FAIL_1)
err_printf("%s%s%s",argv[0],": ","Error in loading buffer.");
/* close source file */
fclose(fi);
/*find the size of the file */
if (loadsize == LOAD_FAIL){
printf("The input file %s %s\n", argv[1],"is not completely loaded.");
printf("Input file size: %ld\n", get_filesize(argv[1]));
}
/* pack and display the source buffer */
if(b_pack(sc_buf)){
display(sc_buf);
}
/* create string Literal Table */
str_LTBL = b_create(INIT_CAPACITY,INC_FACTOR,'a');
if (str_LTBL == NULL){
err_printf("%s%s%s",argv[0],": ","Could not create string literals buffer");
exit(1);
}
/*Testbed for the scanner */
/* add SEOF to input program buffer*/
b_addc(sc_buf,'\0');
/* Initialize scanner input buffer */
if(scanner_init(sc_buf)){;
err_printf("%s%s%s",argv[0],": ","Empty program buffer - scanning canceled");
exit(1);
}
printf("\nScanning source file...\n\n");
printf("Token\t\tAttribute\n");
printf("----------------------------------\n");
do{
t= mlwpar_next_token(sc_buf);
print_token(t);
}while(t.code != SEOF_T);
if(b_size(str_LTBL)) b_print(str_LTBL);
b_destroy(sc_buf);
b_destroy(str_LTBL);
sc_buf = str_LTBL = NULL;
return (0);
}
