Question

How to extract substring between single quotation marks in C++

Answer 1

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

void extractSubstring(const char *str, char *subString) {
    const char *start = strchr(str, '\'');
    
    if (start != NULL) {
        const char *end = strchr(start + 1, '\'');
        if (end != NULL) {
            size_t length = end - start - 1;
            strncpy(subString, start + 1, length);
            subString[length] = '\0'; // Null-terminate the subString string
        }
    }
}

int main() {
    const char* str = "C is a 'general-purpose' programming language";
    char subString[64] = ""; 

    extractSubstring(str, subString);

    printf("'%s'\n", subString);

    return 0;
}

  
  
/*
run:
  
'general-purpose'
  
*/
 

 

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