#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 
 int main(int argc, char* argv[])
 {
 	int i;
 	uint8_t tbl[256];
 	if(argc < 3) {
 		fprintf(stderr, "Usage: %s <variable-name> <character-range|single-char> ...\n", argv[0]);
 		return 1;
 	}
 	memset(tbl, 0, sizeof(tbl));
 	for(i=2;i<argc;i++) {
 		const char* v = argv[i];
 		tbl[*v] = 1;
 		if(v[1] == '-') {
 			int j;

 			for(j=v[0]+1;j<=v[2];j++) {

 				tbl[j]=1;
 			}
 		} else if(v[1]){
 			fprintf(stderr,"Invalid char range spec:%s\n",v);
 			return 2;
 		}
 	}
 	printf("/*");
 	for(i=0;i<sizeof(tbl);i++) {
 		if(tbl[i]) putc(i, stdout);
 	}
 	printf("*/\n");
 	printf("static const uint8_t %s[256] = {\n\t", argv[1]);
 	for(i=0;i<sizeof(tbl);i++) {
 		printf("%d",tbl[i]);
 		if(i!=sizeof(tbl)-1) {
 			putc(',', stdout);
 			if(i%16==15)
 				fputs("\n\t",stdout);
 			else
 				putc(' ', stdout);
 		} else {
 			putc('\n',stdout);
 		}
 	}
 	printf("};\n");
 
 	return 0;
 }