Spell-Checker:
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include "search.h"
int main(void)
{
FILE *f = fopen("mistakes.txt", "w");
FILE *fPointer;
FILE *dictionary;
//int a,b;
char fname[20];
char wordcheck[45];
char worddict[45];
char dummy;
int i;
int notfound;
int k;
This is the files i am using including the dictionary file that has the words
i compare to the other text file
///^below add text file to be read
fPointer = fopen("fname", "r");
dictionary = fopen("dictionary.txt","r");
if (f == NULL)
{
printf("Error oping file!\n");
exit(1);
}
I have created this loop to make the words lower cased and identify the punctuation
while(fscanf(fPointer,"%s", wordcheck)!=EOF)// makes all characters lower case
{ // an array that contains the characters of the original word
char wordChars[1000];
int newwordlength = 0;
// loops through each character in a word
for (i=0; i < strlen(wordcheck); i++)
{
// makes all words lower cased
wordcheck[i] = tolower(wordcheck[i]);
// checks the word has these characters and increments newwordlength where the character is a letter
if (wordChars[i] != ','
&& wordChars[i] != '.'
&& wordChars[i] != '?'
&& wordChars[i] != '!'
&& wordChars[i] != ':')
{ // how long the word will be without these characters
newwordlength++;
}
}
// creates new character array with size newwordlength
char newWordChars[1000];
*I think my problem is in this part*
int currChar = 0;
**This is where i think my problem is as its not removing the the characters **
// loops through these characters and only adds non-punctuation characters to the new character array
for (k = 0; k < strlen(wordChars); k++)
{
if (wordChars[k] != ','
&& wordChars[k] != '.'
&& wordChars[k] != '?'
&& wordChars[k] != '!'
&& wordChars[k] != ':')
{
newWordChars[currChar] = wordChars[k];
currChar++;
}
}
When I use this loop, I copy the mistakes into a text file but it copies the punctuation as well
fseek(dictionary,0,SEEK_SET);
while(fscanf(dictionary,"%s", worddict)!=EOF)
{
notfound = 1;
if(strcmp(wordcheck, worddict)==0)// compares strings//
{
printf("This word: %s is in the dictionary\n", wordcheck);
notfound = 0;
break;
}
}
if(notfound == 1)
This is where it copies the txt file.
{
printf("%s is not in the dictionary\n", wordcheck);
const char *mistakes = "Write this to file";
fprintf(f, "Words not in the dictionary: %s\n", wordcheck);
}
printf("Your file has been checked. Please check your errors by typing mistakes.txt to view ");
}
fclose(dictionary);
fclose(fPointer);
return 0;
}
Related
I' am writing a C program which allows the user to dynamically specify the File name from which the data is to be read. Next the user enters a lower bound and an upper bound. The data in the lines from between the bounds is to be printed.
For this the main function makes a call: readValues(cTargetName, iLower, iHiger);
The function readValues is supposed to work as follows:
Check if file exist, if yes. Open it with fopen
Read with feof and fgets line by line the whole file, and store each line in char string
With a for loop, print the correct range of lines from the string
I'm not sure why but the while loop doesn't seem to exit although I use the feof statement, which should terminate after the end of the File is reached.
The code looks as follows:
#include <stdio.h>
#include <stdlib.h>
void readValues(char cFileName[75], int n, int m)
{
//Variable declaration;
char strArray[50][50];
char *parser;
int i = 0;
FILE *Data;
if(Data = fopen(cFileName, "rt") == NULL){
printf("File could not be opened");
return 1; //Can you return 1 in a void function?
}
//Read the file line by line
while(feof(Data)==0){
fgets(strArray[i], 200, Data);
i++;
}
//Reading the specified lines
for(n; n<=m; n++){
printf("%s", strArray[n]);
}
}
int main()
{
char cTargetName[75] = {"C:/Users/User1/Desktop/C_Projects_1/TestData.txt"};
int iLower = 2;
int iHiger = 4;
readValues(cTargetName, iLower, iHiger);
return 0;
}
All help is appreciated. Thanks in advance!
Here is my solution to your question:
#include <stdio.h>
#include <stdlib.h>
#define MIN_LINE_LENGTH 64
typedef enum {
false, true
} bool;
int main() {
char filename[PATH_MAX] = {0};
printf("Enter filename:\n");
fgets(filename, PATH_MAX, stdin); // get filename from stdin
char *ptr = filename;
while (*ptr) { // remove trailing newline at the end of filename (fgets() includes newline)
if (*ptr == '\n') {
*ptr = 0;
}
++ptr;
}
printf("Enter starting line and end line, separated by a space:\n");
size_t startLine = 0;
size_t endLine = 0;
bool hasFirstNum = false;
bool hasSecondNum = false;
bool hasMiddleSpace = false;
bool hasLastSpace = false;
size_t numCount = 0;
int ch;
while ((ch = fgetc(stdin)) != EOF && ch != '\n') { // continually receive chars from stdin
if (ch != 32 && !(ch >= 48 && ch <= 57)) { // if not a space or number, raise error
fprintf(stderr, "Only numerical values (and spaces) can be entered.\n");
return 1;
}
if (ch == 32) {
if (hasFirstNum) {
hasMiddleSpace = true;
}
if (hasSecondNum) {
hasLastSpace = true;
}
continue;
}
else if (!hasFirstNum) {
++numCount;
hasFirstNum = true;
}
else if (!hasSecondNum && hasMiddleSpace) {
++numCount;
hasSecondNum = true;
}
else if (hasLastSpace) {
++numCount;
}
if (numCount == 1) {
startLine *= 10;
startLine += ch - 48; // '0' character in ASCII is 48
}
else if (numCount == 2){
endLine *= 10;
endLine += ch - 48;
}
else {
break;
}
}
FILE *fp = fopen(filename, "r");
if (fp == NULL) {
fprintf(stderr, "Error opening file.\n");
return 1;
}
char **lines = malloc(sizeof(char *));
char *line = malloc(MIN_LINE_LENGTH);
*lines = line;
int c;
size_t char_count = 0;
size_t line_count = 1;
while ((c = fgetc(fp)) != EOF) { // continually get chars from file stream
if (c == '\n') { // expand lines pointer if a newline is encountered
*(line + char_count) = 0;
++line_count;
lines = realloc(lines, line_count*sizeof(char *));
line = (*(lines + line_count - 1) = malloc(MIN_LINE_LENGTH));
char_count = 0;
continue;
}
if ((char_count + 1) % MIN_LINE_LENGTH == 0 && char_count != 0) { // expand line pointer if needed
line = realloc(line, char_count + MIN_LINE_LENGTH);
}
*(line + char_count) = c;
++char_count;
}
*(line + char_count) = 0; // to ensure the last line always ends with the null byte
if (startLine >= line_count) { // raise error if starting line specified is greater than num. of lines in doc.
fprintf(stderr, "Specified starting line is less than total lines in document.\n");
return 1;
}
if (endLine > line_count) { // adjust ending line if it is greater than number of lines in doc.
endLine = line_count;
}
if (startLine == 0) { // we will be using the starting index of 1 as the first line
startLine = 1;
}
char **linesPtr = lines + startLine - 1;
while (startLine++ <= endLine) { // print lines
printf("%s\n", *linesPtr++);
}
for (size_t i = 0; i < line_count; ++i) { // free all memory
free(*(lines + i));
}
free(lines);
return 0;
}
It is a little more convoluted, but because it uses dynamic memory allocation, it can handle lines of any length within a text file.
If there is anything unclear, please let me know and I would be happy to explain.
Hope this helps!!
several issues here,
first, you limited the length of lines to 200, not exactly what you might expect to get.
the fgets function returns lines up to specified length unless hit by newline character - this should be taken into account.
additionally, fgets returns NULL if you hit EOF - no real need to use feof.
second, you could save yourself a lot of pain and simply count the number of times you get a string, and for the times you are within the range just print it immediately. will save you a nice amount of overhead
like this:
#include <stdio.h>
#include <stdlib.h>
#define MAXLINE 200//or anything else you want
void readValues(char cFileName[75], int n, int m)
{
//Variable declaration;
char line[MAXLINE];
int i = 0;
FILE *Data;
if((Data = fopen(cFileName, "rt")) == NULL){
printf("File could not be opened");
return 1; //Can you return 1 in a void function?
}
//Read the file line by line and print within range of lines
while((line=fgets(line, MAXLINE,Data))!=NULL){//terminates upon EOF
if (++i>=n&&i<=m)
printf(""%s\n",line);
}
}
I try to count the number of characters, words, lines in a file.
The txt file is:
The snail moves like a
Hovercraft, held up by a
Rubber cushion of itself,
Sharing its secret
And here is the code,
void count_elements(FILE* fileptr, char* filename, struct fileProps* properties) // counts chars, words and lines
{
fileptr = fopen(filename, "rb");
int chars = 0, words = 0, lines = 0;
char ch;
while ((ch = fgetc(fileptr)) != EOF )
{
if(ch != ' ') chars++;
if (ch == '\n') // check lines
lines++;
if (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\0') // check words
words++;
}
fclose(fileptr);
properties->char_count = chars;
properties->line_count = lines;
properties->word_count = words;
}
But when i print the num of chars, words and lines, outputs are 81, 18, 5 respectively
What am i missing?
(read mode does not changes anything, i tried "r" as well)
The solution I whipped up gives me the same results as the gedit document statistics:
#include <stdio.h>
void count_elements(char* filename)
{
// This can be a local variable as its not used externally. You do not have to put it into the functions signature.
FILE *fileptr = fopen(filename, "rb");
int chars = 0, words = 0, lines = 0;
int read;
unsigned char last_char = ' '; // Save the last char to see if really a new word was there or multiple spaces
while ((read = fgetc(fileptr)) != EOF) // Read is an int as fgetc returns an int, which is a unsigned char that got casted to int by the function (see manpage for fgetc)
{
unsigned char ch = (char)read; // This cast is safe, as it was already checked for EOF, so its an unsigned char.
if (ch >= 33 && ch <= 126) // only do printable chars without spaces
{
++chars;
}
else if (ch == '\n' || ch == '\t' || ch == '\0' || ch == ' ')
{
// Only if the last character was printable we count it as new word
if (last_char >= 33 && last_char <= 126)
{
++words;
}
if (ch == '\n')
{
++lines;
}
}
last_char = ch;
}
fclose(fileptr);
printf("Chars: %d\n", chars);
printf("Lines: %d\n", lines);
printf("Words: %d\n", words);
}
int main()
{
count_elements("test");
}
Please see the comments in the code for remarks and explanations. The code also would filter out any other special control sequences, like windows CRLF and account only the LF
Your function takes both a FILE* and filename as arguments and one of them should be removed. I've removed filename so that the function can be used with any FILE*, like stdin.
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
typedef struct { /* type defining the struct for easier usage */
uintmax_t char_count;
uintmax_t word_count;
uintmax_t line_count;
} fileProps;
/* a helper function to print the content of a fileProps */
FILE* fileProps_print(FILE *fp, const fileProps *p) {
fprintf(fp,
"chars %ju\n"
"words %ju\n"
"lines %ju\n",
p->char_count, p->word_count, p->line_count);
return fp;
}
void count_elements(FILE *fileptr, fileProps *properties) {
if(!fileptr) return;
properties->char_count = 0;
properties->line_count = 0;
properties->word_count = 0;
char ch;
while((ch = fgetc(fileptr)) != EOF) {
++properties->char_count; /* count all characters */
/* use isspace() to check for whitespace characters */
if(isspace((unsigned char)ch)) {
++properties->word_count;
if(ch == '\n') ++properties->line_count;
}
}
}
int main() {
fileProps p;
FILE *fp = fopen("the_file.txt", "r");
if(fp) {
count_elements(fp, &p);
fclose(fp);
fileProps_print(stdout, &p);
}
}
Output for the file you showed in the question:
chars 93
words 17
lines 4
Edit: I just noticed your comment "trying to count only alphabetical letters as a char". For that you can use isalpha and replace the while loop with:
while((ch = fgetc(fileptr)) != EOF) {
if(isalpha((unsigned char)ch)) ++properties->char_count;
else if(isspace((unsigned char)ch)) {
++properties->word_count;
if(ch == '\n') ++properties->line_count;
}
}
Output with the modified version:
chars 74
words 17
lines 4
A version capable of reading "wide" characters (multibyte):
#include <locale.h>
#include <stdint.h>
#include <stdio.h>
#include <wchar.h>
#include <wctype.h>
typedef struct {
uintmax_t char_count;
uintmax_t word_count;
uintmax_t line_count;
} fileProps;
FILE* fileProps_print(FILE *fp, const fileProps *p) {
fprintf(fp,
"chars %ju\n"
"words %ju\n"
"lines %ju\n",
p->char_count, p->word_count, p->line_count);
return fp;
}
void count_elements(FILE *fileptr, fileProps *properties) {
if(!fileptr) return;
properties->char_count = 0;
properties->line_count = 0;
properties->word_count = 0;
wint_t ch;
while((ch = fgetwc(fileptr)) != WEOF) {
if(iswalpha(ch)) ++properties->char_count;
else if(iswspace(ch)) {
++properties->word_count;
if(ch == '\n') ++properties->line_count;
}
}
}
int main() {
setlocale(LC_ALL, "sv_SE.UTF-8"); // set your locale
FILE *fp = fopen("the_file.txt", "r");
if(fp) {
fileProps p;
count_elements(fp, &p);
fclose(fp);
fileProps_print(stdout, &p);
}
}
If the_file.txt contains one line with öäü it'll report
chars 3
words 1
lines 1
and for your original file, it'd report the same as above.
#include <stdio.h>
#include <stdlib.h>
int main()
{
FILE *fp;
char file_name[50], ch, text[140];
int i;
printf("Enter a file name to create :");
scanf("%s", file_name);
fp = fopen(file_name,"w");
if(fp == NULL)
{
printf("The file %s could not open !", file_name);
exit(EXIT_FAILURE);
}
printf("Enter some text into %s : (enter * to finish)\n", file_name);
while((ch=getchar()) != '*')
{
for(i=0;i<140;i++)
text[i] = ch;
}
for(i=0;i<140;i++)
{
fprintf(fp,"%c",text[i]);
}
fclose(fp);
printf("Your datas has been successfully copied into file %s",file_name);
return 0;
}
It creates the file but does not copies the content of the array to the user created file. So it just creates empty file. In which part I have mistake can anyone help to fix this problem ?
See the below code block, here for loop is unnecessary, outer while loop is enough.
while((ch=getchar()) != '*')
{
for(i=0;i<140;i++) /* 140 times same char you are copying into text */
text[i] = ch;
}
It should be
int i = 0;
while((ch=getchar()) != '*' && (i < 140)) { /* just one more condition so that it should exceeds 140 char */
text[i] = ch;
i++; /* when loop fail i is the count of no of char to be written to file */
}
And while putting data into file using fprintf()
for(index = 0;index < i ;index++) { /* i is the count */
fprintf(fp,"%c",text[index]);
}
i am working in file system in that i am counting paragraph from the file but
i am not getting please suggest me how can i do that i tried this but not getting what i want
int main()
{
FILE *fp=fopen("200_content.txt ","r");
int pCount=0;
char c;
while ((c=fgetc(fp))!=EOF)
{
if(c=='\n'){pCount++;}
else{continue;}
}
printf("%d",pCount);
return 0;
}
You should declare c as int instead of char.
Also, remember to fclose(fp); before main() returns.
A paragraph contains two subsequent '\n's, use a variable for counting the two '\n's, like this,
int main()
{
FILE *fp=fopen("200_content.txt ","r");
int pCount=0;
char c;
int newln_cnt=0;
while ((c=fgetc(fp))!=EOF)
{
if(c=='\n')
{
newln_cnt++;
if(newln_cnt==2)
{
pCount++;
newln_cnt=0;
}
}
else{continue;}
}
printf("%d",pCount);
return 0;
}
You code counts the number of newline '\n' characters, not empty line which demarcates the paragraphs. Use fgets to read lines from the file. I suggest this -
#include <stdio.h>
// maximum length a line can have in the file.
// +1 for the terminating null byte added by fgets
#define MAX_LEN 100+1
int main(void) {
char line[MAX_LEN];
FILE *fp = fopen("200_content.txt", "r");
if(fp == NULL) {
printf("error in opening the file\n");
return 1;
}
int pcount = 0;
int temp = 0;
while(fgets(line, sizeof line, fp) != NULL) {
if(line[0] == '\n') {
// if newline is found and temp is 1 then
// this means end of the paragraph. increase
// the paragraph counter pcount and set temp to 0
if(temp == 1)
pcount++;
temp = 0;
}
else {
// if a non-empty line is found, this means
// the start of the paragraph
temp = 1;
}
}
// if the last para doesn't end with empty line(s)
if(temp == 1)
pcount++;
printf("number of para in the file is %d\n", pcount);
return 0;
}
For starters, I assume that you consider a new line to be a new paragraph.
i.e.
This is line 1.
This is line 2.
has 2 paragraphs.
What your code does is neglect the case where there is an EOF and not a newline character (\n) after This is line 2.
One way to fix this is to use an extra char variable.
int main()
{
FILE *fp=fopen("200_content.txt ","r");
int pCount=0;
char c; // char that checks
char last_c; //record of the last character read in the loop
while ((c=fgetc(fp))!=EOF)
{
if(c=='\n'){pCount++;}
last_c = c;
else{continue;} //this line is redundant. You can remove it
}
if (last_c != '\n') pCount++; //if EOF at the end of line and not '\n'
printf("%d",pCount);
return 0;
}
void analyze_file(const char *filename) {
FILE* out_file;
out_file = fopen(filename,"r");
int size;
if(out_file == NULL)
{
printf("Error(analyze_file): Could not open file %s\n",filename);
return;
}
fseek(out_file,0,SEEK_SET);
char ch,ch1;
int alpha_count = 0,num_count = 0,non_alnum =0,charac=0;
int word_count =0,line=0;
int para=0;
while(!feof(out_file))
{
ch = fgetc(out_file);
if (isalpha(ch))
alpha_count++;
else if(isdigit(ch))
num_count++;
else if(!isalnum(ch) && ch!='\n' && !isspace(ch))
++non_alnum;
else if(ch=='\n')
{ line++;
ch1 = fgetc(out_file);// courser moves ahead , as we read
fseek(out_file,-1,SEEK_CUR); // bringing courser back
}
else if(ch == ch1)
{para++; //paragraph counter
word_count--;
}
if(ch==' '||ch=='\n')
{
word_count++;
}
if(ch==EOF)
{
word_count++;line++;para++;
}
}
non_alnum -=1;// EOF character subtracted.
charac = alpha_count + non_alnum + num_count;
fclose(out_file);
printf("#Paragraphs = %d\n",para);
printf("#lines = %d\n",line);
printf("#Words = %d\n",word_count);
printf("#Characters = %d\n",charac);
printf("Alpha = %d\n",alpha_count);
printf("Numerical = %d\n",num_count);
printf("Other = %d\n",non_alnum);
printf("\n");
return;
}
So what I'm trying to do is to count blank lines, which means not only just containing '\n'but space and tab symbols as well. Any help is appreciated! :)
char line[300];
int emptyline = 0;
FILE *fp;
fp = fopen("test.txt", "r");
if(fp == NULL)
{
perror("Error while opening the file. \n");
system("pause");
}
else
{
while (fgets(line, sizeof line, fp))
{
int i = 0;
if (line[i] != '\n' && line[i] != '\t' && line[i] != ' ')
{
i++;
}
emptyline++;
}
printf("\n The number of empty lines is: %d\n", emptyline);
}
fclose(fp);
You should try and get your code right when posting on SO. You are incrementing both i and emptyline but the use el in your call to printf(). And then I don't know what that is supposed to be in your code where it has }ine. Please, at least make an effort.
For starters, you are incrementing emptyline for every line because it is outside of your if statement.
Second, you need to test the entire line to see if it contains any character that is not a whitespace character. Only if that is true should you increment emptyline.
int IsEmptyLine(char *line)
{
while (*line)
{
if (!isspace(*line++))
return 0;
}
return 1;
}
Before getting into the line loop increment the emptyLine counter and if an non whitespace character is encountred decrement the emptyLine counter then break the loop.
#include <stdio.h>
#include <string.h>
int getEmptyLines(const char *fileName)
{
char line[300];
int emptyLine = 0;
FILE *fp = fopen("text.txt", "r");
if (fp == NULL) {
printf("Error: Could not open specified file!\n");
return -1;
}
else {
while(fgets(line, 300, fp)) {
int i = 0;
int len = strlen(line);
emptyLine++;
for (i = 0; i < len; i++) {
if (line[i] != '\n' && line[i] != '\t' && line[i] != ' ') {
emptyLine--;
break;
}
}
}
return emptyLine;
}
}
int main(void)
{
const char fileName[] = "text.txt";
int emptyLines = getEmptyLines(fileName);
if (emptyLines >= 0) {
printf("The number of empty lines is %d", emptyLines);
}
return 0;
}
You are incrementing emptyline on every iteration, so you should wrap it in an else block.
Let's think of this problem logically, and let's use functions to make it clear what is going on.
First, we want to detect lines that only consist of whitespace. So let's create a function to do that.
bool StringIsOnlyWhitespace(const char * line) {
int i;
for (i=0; line[i] != '\0'; ++i)
if (!isspace(line[i]))
return false;
return true;
}
Now that we have a test function, let's build a loop around it.
while (fgets(line, sizeof line, fp)) {
if (StringIsOnlyWhitespace(line))
emptyline++;
}
printf("\n The number of empty lines is: %d\n", emptyline);
Note that fgets() will not return a full line (just part of it) on lines that have at least sizeof(line) characters.