Things are looking a bit better now. It still can't find a match for the first word, and the '.', which it replaces with '\0'. No I haven't checked with the debugger. 
But yes, I will use the debugger to check. That will take a few days to complete.
test.txt = "hello world brown."
dictionary
Code:
how
now
hello
brown
cow
world
purple
reader
output
Code:
hello: no match found
world: matchfound
brown: matchfound
: no match found
Code:
// spellcheck.c - checks spelling of a text file against a dictionary file
// 5 functions: copyfile(), getword(), spellcheck(), options(), editfile()
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define BUFFERSIZE 4096
#define FILENAME_LENGTH 40
#define STRING_LENGTH 300 // length of string read by fgets() from file
#define WORD_LENGTH 40
void copyfile (void);
char *getword(FILE *tempfile);
char *spellcheck (char *word);
int options(char *errorword);
void editfile();
int main(void)
{
FILE *tempfile;
char *word, *errorword;
copyfile();
tempfile = fopen("temp.txt", "r");
word = malloc(WORD_LENGTH * sizeof(char));
errorword = malloc(WORD_LENGTH * sizeof(char));
word = getword(tempfile);
do
{
if(spellcheck(word) == NULL)
{
printf("%s: match found\n");
}
else
{
errorword = spellcheck(word);
options(errorword);
//editfile();
}
} while (getword(tempfile) != NULL);
return 0;
}
// copy original file to tempfile for reading so that original file can be opened for writing(editing)
void copyfile(void)
{
size_t c;
char buffer[BUFFERSIZE];
FILE *file, *tempfile;
if((file = fopen("test.txt", "r")) == NULL || (tempfile = fopen("temp.txt", "w")) == NULL)
{
perror("Error");
}
while((c = fread(buffer, 1, BUFFERSIZE, file)) > 0)
{
fwrite(buffer, 1, c, tempfile);
}
fclose(file);
fclose(tempfile);
}
char *getword(FILE *tempfile)
{
static char word[WORD_LENGTH]; // static to retain value of word
int ch;
int ctr = 0;
while((ch = fgetc(tempfile)) != EOF)
{
if((ch != ' ') && (ch != '.') && (ch != '-') && (ch != '!') && (ch != '(') && (ch != ')') && (ch != ':') && (ch != ';') && (ch != '\n'))
{
word[ctr] = ch;
ctr++;
}
else
{
word[ctr] = '\0'; // if ch is space or punctuation, add terminator to create string
return word;
}
}
return NULL; // flag that EOF has been reached
}
char *spellcheck(char *word)
{
int x, ch, flag, cmpr, ctr = 0;
char buffer[BUFFERSIZE];
char word_in_dict[WORD_LENGTH];
FILE *dictionary;
dictionary = fopen("dictionary.txt", "r");
while((ch = fgetc(dictionary)) != EOF)
{
if((ch != '\n'))
{
word_in_dict[ctr] = ch;
ctr++;
}
else
{
word_in_dict[ctr] = '\0'; // add terminator to make string
if((cmpr = strcmp(word, word_in_dict)) == 0) // compare word to dictionary word
{
return NULL; // match found, nothing further needs doing
}
ctr = 0; // reset array index to accept new word
}
}
fclose(dictionary);
return word; // if no matches between word and any dictionary words, return word to main()
}
int options(char *errorword)
{
int x, ch;
// do
// {
printf("%s: no match found\n", errorword);
// printf("Alternative words: \n");
// printf("0 to quit \n");
// } while(scanf("%d", &x) > 6);
//
// if(x == 0)
// {
// exit(1);
// }
}
void editfile()
{
}
Originally Posted by cfanatic
Sounds like a useful function, but I am going to stick with what I know for now.
).By closing and reopening the dictionary image what happens...You use fgetc in your spellcheck function.So in order to check the first word from Hello world,you traverse through the whole dictionary,with no storing somewhere the index of the dictionary(no you shouldn't store it,no need,so bravo).So ok you checked Hello.Now what happens with the second word?How are you going to traversi through the the dictionary again?Now the pointer of the file has already reached EOF,so you have to reset it...Or done what oogabboga said (and i suggest too),close and open again file dictionary(which will reset the pointer and let you do the exact same thing again and again.
