Question

How to print all the words of a text file with C

Answer 1

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

void print_words(char filename[]) {
    FILE* fp = fopen(filename, "r");

    if (fp == NULL) {
        printf("Error open file\n");
        exit(EXIT_FAILURE);
    }

    char word[16];
    while (fscanf(fp, "%s", word) != EOF) {
        puts(word);
    }

    fclose(fp);
}

int main()
{
    print_words("d:\\data.txt");

    return 0;
}




/*
run: 

C
is
a
general-purpose
programming
language.
It
was
created
in
the
1970s
by
Dennis
Ritchie
and
remains
very
widely
used
and
influential.

*/

 

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Answer 2

#include <stdio.h>
#include <string.h>

void print_words(char *filename) {

    FILE* fp;
    char buffer[255];

    fp = fopen(filename, "r");
    if (!fp) return 1;

    while (fgets(buffer, 255, fp) != NULL) {
        char* p;

        p = strtok(buffer, " ,.-\n");
        while (p != NULL) {
            printf("%s\n", p);
            p = strtok(NULL, " ,.-\n");
        }
    }

    fclose(fp);
}

int main(void)
{
    print_words("d:\\data.txt");

    return 0;
}



/*
run: 

C
is
a
general
purpose
programming
language
It
was
created
in
the
1970s
by
Dennis
Ritchie
and
remains
very
widely
used
and
influential

*/

 

70+ SQL courses for beginners and professionals