Вы не можете выбрать более 25 тем Темы должны начинаться с буквы или цифры, могут содержать дефисы(-) и должны содержать не более 35 символов.

107 строки
2.7 KiB
C++

#include <sstream>
#include <vector>
#include <iostream>
#include <string>
#include "histogram.h"
#include "text.h"
#include "svg.h"
#include <curl/curl.h>
using namespace std;
struct Input {
vector<double> numbers;
size_t bin_count{};
string stroke;
};
Input
input_data(istream& in, bool prompt) {
int i;
size_t number_count;
string check1 = " ";
string check2 = "#";
if (prompt) { cerr << "Enter number count: "; };
in >> number_count;
Input in1;
in1.numbers.resize(number_count);
if (prompt) { cerr << "Enter numbers: "; };
for (size_t i = 0; i < number_count; i++) {
in >> in1.numbers[i];
}
if (prompt) { cerr << "Enter bin count: "; };
in >> in1.bin_count;
if (prompt) { cerr << "Enter stroke colour without spaces or in code format:"; };
in.ignore();
getline(in, in1.stroke);
for (i = 0; i < in1.stroke.length(); i++) {
if (isspace(in1.stroke[i])) {
cerr << "invalid input";
exit(0);
}
}
if (in1.stroke[0] == check2[0]) {
if (in1.stroke.length() != 7) {
cerr << "invalid input";
exit(0);
}
}
return in1;
}
static size_t
write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
size_t data_size = item_size * item_count;
stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
buffer->write(reinterpret_cast<const char*>(items), data_size);
return data_size;
}
Input
download(const string& address) {
stringstream buffer;
CURL* curl = curl_easy_init();
if (curl) {
CURLcode res;
curl_off_t connect;
curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
exit(1);
}
if (CURLE_OK == res) {
res = curl_easy_getinfo(curl, CURLINFO_CONNECT_TIME_T, &connect);
if (CURLE_OK == res) {
fprintf(stderr, "connection time: %" CURL_FORMAT_CURL_OFF_T ".%06ld", connect / 1000000, (long)(connect % 1000000));
}
}
curl_easy_cleanup(curl);
}
return input_data(buffer, false);
}
int
main(int argc, char* argv[])
{
#include <curl/curl.h>
curl_global_init(CURL_GLOBAL_ALL);
Input input;
if (argc > 1) {
input = download(argv[1]);
}
else {
input = input_data(cin, true);
}
const auto bins = make_histogram(input.numbers, input.bin_count);
show_histogram_svg(bins,"yellow");
}