Question

How to extract words from a string into an array with C

Answer 1

#include <stdio.h>
#include <string.h>
 
int stringToArray2d(char str[], char wordsarray[][16], char* delimiter) {
    char* word = strtok(str, delimiter);
    int rows = 0;
    
    if (word == NULL) {
        return rows;
    }
 
    while (word != NULL) {
        int wordlen = strlen(word);
        
        for (int i = 0; i < wordlen; i++) {
            wordsarray[rows][i] = word[i];            
        }
        wordsarray[rows][wordlen] = '\0';
        word = strtok(NULL, delimiter);
        rows++;
    }
    
    return rows;
}

int main()
{
    char str[] = "c c++ java php python c# javascript rust go";
    char wordsarray[32][16] = { {""} };
 
    int rows = stringToArray2d(str, wordsarray, " ");
 
    for (int i = 0; i < rows; i++) {
        puts(wordsarray[i]);
    }
 
    return 0;
}
 
 
 
 
 
/*
run:
   
c
c++
java
php
python
c#
javascript
rust
go

*/
 

 

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