Question

How to remove a given word from a string in C

Answer 1

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

int stringToArray2d(char str[], char words[][20]) {
	int i = 0, j = 0, k = 0;

	while (str[i] != 0) {
		if (str[i] == ' ') {
			words[k][j] = '\0';
			k++;
			j = 0;
		}
		else {
			words[k][j] = str[i];
			j++;
		}
		i++;
	}
	words[k][j] = '\0';

	return k + 1;
}


void removeWord(char str[], char to_remove[]) {
	char words[12][20] = { {""} };

	int len = stringToArray2d(str, words);

	memset(str, 0, strlen(str));

	for (int i = 0; i < len; i++) {
		if (strcmp(words[i], to_remove) != 0) {
			strcat(strcat(str, words[i]), " ");
		}
	}
}

int main()
{
	char str[] = "C is a general purpose computer programming language";
	char to_remove[] = "purpose";

	removeWord(str, to_remove);
	
	puts(str);

	return 0;
}





/*
run:
   
C is a general computer programming language
   
*/

 

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