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