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

#define PCRE2_CODE_UNIT_WIDTH 8
#include <pcre2.h>
#include <dlfcn.h>


int main() {
	char buffer[1000];

	char *temp = buffer;
	while ((*temp++ = getchar()) != EOF);

	*--temp = '\0';


	//Compiling Regex

	int error;
	PCRE2_SIZE erroroffset;

	char errormessage[100];
	char pattern[30];
	strcpy(pattern, "Error");
	pcre2_code *regex = pcre2_compile(pattern, PCRE2_ZERO_TERMINATED, 0, &error, &erroroffset, NULL);
	pcre2_get_error_message(error, errormessage, 100);

	//Matching Regex Pattern

	pcre2_match_data *matches = pcre2_match_data_create_from_pattern(regex, NULL);

	int vector[1000];
	pcre2_dfa_match(regex, buffer, strlen(buffer), 0, 0, matches, NULL, vector, 1000);




	//Getting Substrings

	{
		PCRE2_UCHAR8** substrings;
		size_t* size;

		pcre2_substring_list_get(matches, &substrings, &size);

		PCRE2_UCHAR8** temp = substrings;
		char* substring;
		while(substring = *temp++){
			substring[*size++] = '\0';
			printf("Substring: %s", substring);
		}
	}


	//Program End
	pcre2_match_data_free(matches);
	pcre2_code_free(regex);
	return 0;
}