/*****************************/
/** DITO Demo               **/
/** (C) Dirk Holtwick, 1996 **/
/*****************************/

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

// SOME USEFULL DEFINITIONS
#define FILEID 		"Italiano"
#define ITALIAN(d)	(char *)(&d->str)
#define ENGLISH(d)	(char *)(&d->str+d->ger)
#define TYPE(d)      (d->type)
#define GR1(d) 		(char *)(&d->str+d->gr1)
#define GR2(d) 		(char *)(&d->str+d->gr2)
#define GRVAL1(d)		(unsigned char)d->grv
#define GRVAL2(d)		(unsigned char)d->grv2
#define GRVAL3(d)		(unsigned char)d->grv3
#define READIMP(d)	((d->status & 6) >> 1)
#define READLND(d) 	(d->status & 1)

// WICH TYPE OF VOCABULARY IS IT?
char *Types[]={
	"REST",
	"NOUN",
	"ADJECTIVE",
	"VERB"
};

// HOW IMPORTANT?
char *Important[]={
	"VERY IMPORTANT",
	"NORMAL",
	"NOT IMPORTANT"
};

// LEARNED?
char *Learned[]={
	"NOT LEARNED",
	"LEARNED"
};

// VOCABULARY STRUCTURE THAT IS USED BY ITALAIANO
struct VocData {
	struct	VocData *succ, *pred;				// for list structure
	long		length;									// lenth of structure
	short 	type;										// rest, noun, adjective or verb?
	short 	status;									// learned, weight
	unsigned short 	ger,	gr1,	gr2;			// offsets for strings
	unsigned char		grv,	grv2,	grv3;			// some usefull datas
	char		str;										// strings
};

// HERE STARTS THE SMALL DEMO THAT SHOWS YOU HOW TO LOAD A VOCFILE
void main(int argc, char *argv[]){
	struct 	VocData *act;
	long		i, l, num;
	char		str[20];
	FILE		*in;

	if(argc!=2){											// Need at least one argument
		puts("USAGE: demo [vocfile]");				// like that

	}else{													// otherwise start ...

		if (in=fopen(argv[1],"rb")){					// Open file
			fread(str,strlen(FILEID)+1,1,in);		// Read ID

			if(!strcmp(str,FILEID)){					// Is ID good?
				fread(&num,4,1,in);						// Read number of words
	
				for(i=0;i<num;i++){						// Loop to read words
					fread(&l,4,1,in);						// How long are the following datas
					act=malloc(l+sizeof(VocData));	// Allocate some memory
					act->length=l;							// Insert found length
					fread(&act->type,l,1,in);			// Read datas into structure

					// SOME NICE OUTPUT

					printf(
						"Italian:   %s\n"
						"English:   %s\n"
						"Info:      %s, %s, %s\n"
						"Grammar:   %s, %s, %d, %d,%d\n\n",
						ITALIAN(act),
						ENGLISH(act),
						Types[TYPE(act)],
						Important[READIMP(act)],
						Learned[READLND(act)],
						GR1(act), GR2(act), 
						GRVAL1(act), GRVAL2(act), GRVAL3(act));

					free(act);								// Free, because is only a demo
				}
			}else puts("Not an DITO file");			// Error DITO

			fclose (in);									// Close file
		}else puts("Couldn't open file");			// Error message

	}
}