/**
* Spell check a file using a hash-table dictionary.
* Prints all words not in the dictionary to stdout and statistics to stderr.
* @param ht hash-table to use as a dictionary.
* @param filename name of file to be spell-checked.
* @param fill_time time taken to fill the dictionary.
*/
static void spell_check(htable ht, char *filename, double fill_time){
clock_t start,end;
char word[256];
int unknown_words = 0;
FILE *file = efopen(filename,"r");
start = clock();
while ((getword(word, sizeof word, file)) != EOF) {
if(htable_search(ht,word) == 0){/* word not found */
printf("%s\n",word);
unknown_words++;
}
}
end = clock();
fclose(file);
fprintf(stderr,
"Fill time\t:%f\nSearch time\t:%f\n"
"Unknown words = %d\n",fill_time,
(end-start)/(double)CLOCKS_PER_SEC,unknown_words);
}
/**
* main programme will be excuted.
* By default, words are read from stdin and
* added to hashtable before being printed out
* alongside their frequencies to stdout.
* @param argc an integer saying how many arguments
* there are argc for “argument count”
* @param argv an array of strings in which the arguments
* are stored (argv for “argument vector ”).
* @return integer 1 to indicate if the programme excuted successfully or not.
*/
int main(int argc, char *argv[]) {
const char *optstring = "ht:c:deps:";
char option;
char word[256];
int capacity = 113;
FILE *infile = NULL;
clock_t start, end;
hashing_t method = LINEAR_P;
double fillTime;
double searchTime;
int unknownWords = 0;
int numOfSnapshot = 0;
htable h;
char *fileToBeChecked = NULL;
int withC = 0;
int withE = 0;
int withP = 0;
int withS = 0;
/*
* Begin processing the argument from the command line
*/
while ((option = getopt(argc, argv, optstring)) != EOF) {
switch (option) {
case 't':
if (atoi(optarg) <= 0){
capacity = 113;
}else {
capacity = primegt(atoi(optarg));
}
break;
case 'd':
method = DOUBLE_H;
break;
case 'c':
withC = 1;
fileToBeChecked = optarg;
break;
case 'e':
withE = 1;
break;
case 's':
numOfSnapshot = atoi(optarg);
if (numOfSnapshot <= 0) {
numOfSnapshot = 10;
}
withS = 1;
break;
case 'p':
withP = 1;
break;
case 'h':
printHelpInfo();
return EXIT_SUCCESS;
default:
printHelpInfo();
return EXIT_FAILURE;
}
}
h = htable_new(capacity, method);
start = clock();
while (getword(word, sizeof word, stdin) != EOF) {
htable_insert(h, word);
}
end = clock();
fillTime = (end-start)/(double)CLOCKS_PER_SEC;
/* prints all the details of the table (-e argument)*/
if (withE == 1) {
htable_print_entire_table(h, stderr);
}
/* Checks the input file against a dictionary (-c <filename> argument)*/
if (withC == 1) {
/*open file and check if it is valid*/
if (NULL == (infile = fopen(fileToBeChecked, "r"))) {
fprintf(stderr, "Can't open file '%s' using mode r\n",
fileToBeChecked);
htable_free(h);
return EXIT_FAILURE;
}
start = clock();
/*Get words from input file, and search for them in the dictionary*/
while (getword(word, sizeof word, infile) != EOF) {
/*If the word isn't in the dictionary*/
if (htable_search(h, word) == 0) {
printf("%s\n", word);
unknownWords += 1;
}
}
end = clock();
fclose(infile);
searchTime = (end-start)/(double)CLOCKS_PER_SEC;
fprintf(stderr, "Fill time\t:%f\n", fillTime);
fprintf(stderr, "Search time\t:%f\n", searchTime);
fprintf(stderr, "Unknown words = %d\n", unknownWords);
htable_free(h);
return EXIT_SUCCESS;
}
/*Prints table stats (-p -s arguments)*/
if (withP == 1 && withS == 0) {
htable_print_stats(h, stdout, 10);
} else if (withP == 1 && withS == 1) {
htable_print_stats(h, stdout, numOfSnapshot);
} else {
htable_print(h, print_info);
}
htable_free(h);
return EXIT_SUCCESS;
}
