PokerHand::PokerHand(std::string handtext) {
auto offset = 0;
auto handoffset = 0;
for (auto cardIndex = 0; cardIndex < 5; cardIndex++) {
std::string cardStr(handtext, offset, 2);
offset += 2;
PokerCard card(cardStr);
hand[handoffset++] = card;
}
SortByRank();
}
int main(int argc, char* argv[]){
int success; // contains 1 if removing from SinLL was successful
int funcSuccess;
int orNext; // contains > 0 if the next word in query should be ORed
int firstAdd; // contains > 0 if the addition to SinLL is the first addition
int tempChar; // used to flush the stdin for too long inputs
char query[MAX_QUERY_LEN]; // contains string of query
char *getsSuccess; // determines if EOF is met.
int status = 1;
SinLL *wordList;
if(argc != 3){ // invalid number of arguments
fprintf(stderr, ANSI_COLOR_RED "Usage: query [INDEXER OUTPUT FILE] [CRAWLER OUTPUT FILE DIRECTORY]" ANSI_COLOR_RESET "\n");
return 0;
}
if(!(access(argv[1], F_OK) != -1)){ // invalid file
fprintf(stderr, ANSI_COLOR_RED "First argument is not a valid file." ANSI_COLOR_RESET "\n");
return 0;
}
if(!IsDir(argv[2])){ // invalid "directory"
fprintf(stderr, ANSI_COLOR_RED "Second argument is not a directory." ANSI_COLOR_RESET "\n");
return 0;
}
HashTable *invertedIndex;
invertedIndex = calloc(1, sizeof(HashTable));
if(!invertedIndex){
status = 0;
goto cleanup;
}
funcSuccess = readFile(argv[1], invertedIndex); // recreate inverted index
if(!funcSuccess){
status = 0;
goto cleanup;
}
while(1){
// get the query from user
fputs("QUERY> ", stdout);
fflush(stdout);
getsSuccess = fgets(query, sizeof(char)*MAX_QUERY_LEN, stdin);
if(!getsSuccess) break; // EOF means exiting program
// this means the user input more than MAX_QUERY_LEN characters to query
if(getsSuccess[strlen(getsSuccess)-1] != '\n'){
fprintf(stderr, ANSI_COLOR_RED "Query length is over the maximum 1000 characters!" ANSI_COLOR_RESET "\n");
while((tempChar = getchar()) != '\n' && tempChar != EOF){
/*do nothing*/
}
continue;
}
// at this stage, the next add is the first add, and we have not seen a
// OR yet.
orNext = 0;
firstAdd = 1;
wordList = CreateSinLL();
if(!wordList) break;
char *wordP;
wordP = strtok(query," ");
// get all the words from the query
while(wordP){
// last word in query will have a \n attached to it, so if
// there is a \n at the end of a word, take that out
if(wordP[strlen(wordP)-1] == '\n'){
wordP[strlen(wordP)-1] = 0;
}
// ignore ANDs.
if(strcmp(AND, wordP) == 0){
wordP = strtok (NULL, " ");
continue;
}
// ignore ORs but make sure you OR the next coming word.
if(strcmp(OR, wordP) == 0){
orNext = 1;
wordP = strtok (NULL, " ");
continue;
}
// make word lowercase. If this word is the first one, or
// the previous word was OR, make a new node in the SinLL
// of WordChainList
NormalizeWord(wordP);
if(firstAdd){
funcSuccess = appendNewWordChain(wordP, wordList);
if(!funcSuccess) break;
firstAdd = 0;
}
else if(orNext){
funcSuccess = appendNewWordChain(wordP, wordList);
if(!funcSuccess) break;
orNext = 0;
}
// if not the previous two cases, just append the word to
// current node.
else{
appendWord(wordP, wordList);
}
wordP = strtok (NULL, " ");
}
// first process will AND all the words contained in each WordChainNodes
// of the list.
WordChainNode *curWordChain = wordList->head;
while(curWordChain){ // while there are more nodes
firstAdd = 1;
DocNode *tempProcessDocNode; // contains original DocNodes to AND from index
DocNode *processDocNode; // contains copied version of above.
WordsLL *wordsProc = curWordChain->words; // gettng first set of words.
while(wordsProc){ // while there are more words
// get DocNodes associated with that word from the inverted index and
// copy it as to not mess up the inverted index.
tempProcessDocNode = DocsFromWordNode(wordsProc->word, invertedIndex);
processDocNode = CopyDocs(tempProcessDocNode);
// merge the above DocNodes with the DocNodes saved at the current
// WordChainNode.
DocMergedID(&processDocNode, &(curWordChain->docs));
// if it is the first add, we want to skip this step. If it isnt the
// first add, and the above DocNodes with the ocNodes saved at the current
// WordChainNode.
if(!firstAdd){
ProcessAND(&processDocNode);
}
// Add the processed (ANDed) DocNode chain at the current
// WordChainNode.
AddDocNodeChain(curWordChain, processDocNode);
// iterate through to the next word at the current node.
wordsProc = wordsProc->nextWord;
firstAdd = 0;
}
// move on to the next node.
curWordChain = curWordChain->nextWords;
}
// now we OR each individual WordChainNodes' DocNode lists.
curWordChain = wordList->head;
DocNode *curDocs;
DocNode *nextDocs;
success = removeTopDoc(wordList, &curDocs); // gets the DocNode list from the first node
// if there you fail here, it means that the list is empty/
if(success){
success = removeTopDoc(wordList, &nextDocs); // gets the next DocNode list from
// the next WordChainNode
while(success){ // if you fail here, there was only one WordChainNode in the list
// process the DocNodes together by ORing them
DocMergedID(&curDocs, &nextDocs);
ProcessOR(&curDocs);
// move on to the next DocNodes from the next WordChainNode.
success = removeTopDoc(wordList, &nextDocs);
}
}
// the list was empty, so found nothing.
else{
printf("Found 0 pages\n");
continue;
}
// sort by the rank and print the results.
SortByRank(&curDocs);
PrintQueryResult(curDocs, argv[2]);
free(wordList); // clean up for next query
}
cleanup:
if(invertedIndex) DeleteHashTable(invertedIndex); // final clean up
if(!status){
fprintf(stderr, ANSI_COLOR_RED "Failed inverted index building." ANSI_COLOR_RESET "\n");
return 0;
}
return 1;
}
