Hi,

I try to use libcurl in C++ with the DBpedia Spotlight
examples<https://github.com/dbpedia-spotlight/dbpedia-spotlight/wiki/Web-service>.
this is the code following this
example<http://ubuntuforums.org/archive/index.php/t-1435926.html>.
But there is no result. I don't have an annotation.

#include <curl/curl.h>

#include <cstdio>

#include <string>

#include<iostream>

using namespace std;

std::string buffer;

size_t curl_write( void *ptr, size_t size, size_t nmemb, void *stream)

{

buffer.append((char*)ptr, size*nmemb);

return size*nmemb;

}

int main(int argc, char **argv)

{

CURL *curl = curl_easy_init();

char *txt="http://spotlight.dbpedia.org/rest/spot/?text=President
Obama called Wednesday on Congress to extend a tax
break&spotter=LingPipeSpotter";

char* data=curl_easy_escape(curl, txt,0);

curl_easy_setopt(curl, CURLOPT_URL, data);

curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write);

curl_easy_perform(curl);

curl_easy_cleanup(curl);

fwrite( buffer.c_str(), buffer.length(), sizeof(char), stdout);

return 0;

}

Any suggestion is welcome to get the annotation. Thank you.

Regards
Olivier

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Received on 2013-11-14