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// Implements a dictionary's functionality
#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include "dictionary.h"
// Represents a node in a hash table
typedef struct node
{
char word[LENGTH + 1];
struct node *next;
} node;
// TODO: Choose number of buckets in hash table
const unsigned int N = 26;
// Hash table
node *table[N];
// Returns true if word is in dictionary, else false
bool check(const char *word)
{
// TODO
return false;
}
// Hashes word to a number
unsigned int hash(const char *word)
{
// (sum of (letter - 'A') % 26) of a word to get a value of where to store it in the hash table
int val = 0;
for (int i = 0; word[i] != '\0'; i++)
{
val += toupper(word[i]) - 'A';
}
return val %= 26;
}
// TODO
// Loads dictionary into memory, returning true if successful, else false
bool load(const char *dictionary)
{
// Open dictionary file
FILE *source = fopen(dictionary, "r");
if (source == NULL)
{
return false;
}
//read each word in dictionary
char word[LENGTH + 1];
// use fscanf(file, "%s", word) to grab words
// check for ended file
while(fscanf(source, "%s", word) != "E0F")
{
// create new node
// use malloc
node *ptr = malloc(sizefo(node));
// check if return is NULL
if (ptr == NULL)
{
fclose(source);
return false;
}
// copy word from fscanf into node using strcpy
strcpy(ptr->word, word);
// set the new ptr
ptr->next = NULL;
// hash the word to find the bucket it goes in
int val = hash(word);
// put
if (table(val)->next != NULL)
{
char = 0;
while()
}
}
/*
use hash function
function takes string and returns index
insert node into hash table
for whatever hash index, go to end and put it there
*/
// Close the dictionary file
fclose(source);
return true;
}
// Returns number of words in dictionary if loaded, else 0 if not yet loaded
unsigned int size(void)
{
// TODO
char c;
int n = 0;
while (fread(&c, 1, 1, file))
{
if (c == "\n")
{
n++;
}
}
return n;
}
// Unloads dictionary from memory, returning true if successful, else false
bool unload(void)
{
// TODO
return false;
}
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