int main(int argc, char **argv) {
char word[MAXWORDSIZE];
char cmd[MAXWORDSIZE]; /* string to hold a command */
char fname[MAXWORDSIZE]; /* name of input file */
PAGENO i;
int goOn;
int k;
setparms(); /* reads the pagesize and the number of ptrs/postigs_record */
dbopen(); /* opens or creates the three files (btree, postings, text) */
goOn = TRUE;
while (goOn) {
printf("\n\t*** These are your commands .........\n");
printf("\t\"C\" to scan the tree\n");
printf("\t\"i\" to insert\n");
printf("\t\"p\" to print a btree page\n");
printf("\t\"s\" to search, and print the key\n");
printf("\t\"S\" to search, and print the key, posting list pairs\n");
printf("\t\">\" to print k successors\n");
printf("\t\"<\" to print k predecessors\n");
printf("\t\"T\" to print the btree in inorder format\n");
printf("\t\"#\" to reset and print stats\n");
printf("\t\"x\" to exit\n");
/* printf("\"d\" to display statistics, \"c\" to clear them,\n"); */
scanf("%s", cmd);
assert(strlen(cmd) < MAXWORDSIZE);
switch (cmd[0]) {
case 'C':
printf("\n*** Scanning... \n");
scanTree(&printOcc);
break;
case 'i':
printf("\tgive input file name: ");
scanf("%s", fname);
assert(strlen(fname) < MAXWORDSIZE);
printf("\n*** Inserting %s\n", fname);
insert(fname);
break;
case 's':
printf("enter search-word: ");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
printf("\n*** Searching for word %s \n", word);
search(word, FALSE);
break;
case 'S':
printf("enter search-word: ");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
printf("\n*** Searching for word %s \n", word);
search(word, TRUE);
break;
case 'p':
printf("pagenumber=?\n");
scanf("%s", cmd);
assert(strlen(cmd) < MAXWORDSIZE);
i = (PAGENO) atoi(cmd);
printPage(i, fpbtree);
break;
case '>':
printf("word=?\n");
scanf("%s", word);
printf("k=?\n");
scanf("%d", &k);
get_successors(word, k, NULL);
break;
case '<':
printf("word=?\n");
scanf("%s", word);
printf("k=?\n");
scanf("%d", &k);
get_predecessors(word, k, NULL);
break;
case 'T':
printf("\n*** Printing tree in order .........\n");
PrintTreeInOrder(ROOT, 0);
break;
case '#':
printf("\n");
printFetchPageCnt();
printf("\n...reseted FetchPage counter\n");
break;
case 'x':
printf("\n*** Exiting .........\n");
goOn = FALSE;
break;
default:
printf("\n*** Illegal command \"%s\"\n", cmd);
break;
}
}
dbclose();
return (0);
}
int main(int argc, char **argv) {
char word[MAXWORDSIZE];
char result[MAXWORDSIZE];
char temp[MAXWORDSIZE];
char cmd[MAXWORDSIZE]; /* string to hold a command */
char fname[MAXWORDSIZE]; /* name of input file */
PAGENO i;
int goOn;
// int k;
setparms(); /* reads the pagesize and the number of ptrs/postigs_record */
dbopen(); /* opens or creates the three files (btree, postings, text) */
goOn = TRUE;
while (goOn) {
printf("\n\t*** These are your commands .........\n");
printf("\t\"C\" to scan the tree\n");
printf("\t\"i\" to insert\n");
printf("\t\"p\" to print a btree page\n");
printf("\t\"s\" to search, and print the key\n");
printf("\t\"S\" to search, and print the key, posting list pairs\n");
printf("\t\"]\" to print next key without given prefix\n");
printf("\t\"[\" to print previous key without given prefix\n");
printf("\t\"T\" to print the btree in inorder format\n");
printf("\t\"#\" to reset and print stats\n");
printf("\t\"x\" to exit\n");
/* printf("\"d\" to display statistics, \"c\" to clear them,\n"); */
scanf("%s", cmd);
assert(strlen(cmd) < MAXWORDSIZE);
switch (cmd[0]) {
case 'C':
printf("\n*** Scanning... \n");
scanTree(&printOcc);
break;
case 'i':
printf("\tgive input file name: ");
scanf("%s", fname);
assert(strlen(fname) < MAXWORDSIZE);
printf("\n*** Inserting %s\n", fname);
insert(fname);
break;
case 's':
printf("enter search-word: ");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
printf("\n*** Searching for word %s \n", word);
search(word, FALSE);
break;
case 'S':
printf("enter search-word: ");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
printf("\n*** Searching for word %s \n", word);
search(word, TRUE);
break;
case 'p':
printf("pagenumber=?\n");
scanf("%s", cmd);
assert(strlen(cmd) < MAXWORDSIZE);
i = (PAGENO) atoi(cmd);
printPage(i, fpbtree);
break;
case ']':
printf("word=?\n");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
strcpy(temp, word);;
get_rightbracket(word, result);
printf("Right bracket of %s:\n%s\n", temp,result);
break;
case '[':
printf("word=?\n");
scanf("%s", word);
assert(strlen(word) < MAXWORDSIZE);
// strcpy(temp, word);;
get_leftbracket(word, result);
printf("Left bracket of %s:\n%s\n", word,result);
break;
break;
case 'T':
printf("\n*** Printing tree in order .........\n");
PrintTreeInOrder(ROOT, 0);
break;
case '#':
printf("\n*** #of reads on B-tree: %d", countPageFetch);
countPageFetch = 0;
break;
case 'x':
printf("\n*** Exiting .........\n");
goOn = FALSE;
break;
default:
printf("\n*** Illegal command \"%s\"\n", cmd);
break;
}
}
dbclose();
return (0);
}