#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define MAXTOTALSUBS 16
char** extract_substrings(const char* text, int* totalsubs) {
const char* start = text;
const char* end;
char** substrings = malloc(MAXTOTALSUBS * sizeof(char *)); // Allocate memory for 16 substrings
*totalsubs = 0;
while ((start = strchr(start, '\'')) != NULL) {
start++; // Move past the opening quote
end = strchr(start, '\'');
if (end == NULL) break; // No closing quote found
size_t length = end - start;
// Allocate memory for the substring
substrings[*totalsubs] = malloc((length + 1) * sizeof(char));
strncpy(substrings[*totalsubs], start, length);
substrings[*totalsubs][length] = '\0'; // Null-terminate the string
(*totalsubs)++;
start = end + 1; // Move past the closing quote
}
if (*totalsubs == 0) {
free(substrings);
return NULL; // Return NULL if no substrings found
}
return substrings;
}
int main() {
const char* s = "C is a 'widely used' and 'influential' 'general-purpose' programming language";
int totalsubs;
char** result = extract_substrings(s, &totalsubs);
if (result != NULL) {
for (int i = 0; i < totalsubs; i++) {
printf("%s\n", result[i]);
free(result[i]); // Free each substring
}
free(result); // Free the array of substrings
} else {
printf("\n");
}
return 0;
}
/*
run:
widely used
influential
general-purpose
*/
