How to display the complete text one word per line in C language?

In C, displaying text one word per line involves reading words from a file and printing each word on a separate line. This can be accomplished by using file handling functions to read words and format the output appropriately.

Syntax

fscanf(file_pointer, "%s", word_buffer);
printf("%s<br>", word);

Example: Reading Words from File

The following program demonstrates how to display text one word per line by reading from a file −

Note: This example uses file operations. Create a text file named "input.txt" with some text content before running the program.

#include <stdio.h>

int main() {
    FILE *fp;
    char word[100];
    
    /* Open file in read mode */
    fp = fopen("input.txt", "r");
    
    if (fp == NULL) {
        printf("Error: Could not open file.<br>");
        return 1;
    }
    
    printf("Text displayed one word per line:<br>");
    
    /* Read words from file and print each on separate line */
    while (fscanf(fp, "%s", word) != EOF) {
        printf("%s<br>", word);
    }
    
    fclose(fp);
    return 0;
}

Example: Using String Input

Here's an alternative approach that processes a string directly without file operations −

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

int main() {
    char text[] = "Welcome to TutorialsPoint Programming";
    char *word;
    
    printf("Original text: %s<br>", text);
    printf("\nText displayed one word per line:<br>");
    
    /* Use strtok to split string into words */
    word = strtok(text, " ");
    
    while (word != NULL) {
        printf("%s<br>", word);
        word = strtok(NULL, " ");
    }
    
    return 0;
}

Original text: Welcome to TutorialsPoint Programming

Text displayed one word per line:
Welcome
to
TutorialsPoint
Programming

Key Points

• The fscanf() function with "%s" format specifier reads words separated by whitespace.
• The strtok() function can split strings into tokens based on specified delimiters.
• Always check if file operations are successful before proceeding with read operations.
• Each printf("%s
", word) call prints a word followed by a newline character.

Conclusion

Displaying text one word per line in C can be achieved using file operations with fscanf() or string manipulation with strtok(). Both methods effectively separate words and format output with each word on its own line.