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114 строки
2.5 KiB
C++

#include <iostream>
#include <vector>
#include "histogram.h"
#include "text.h"
#include "histogram_internal.h"
#include "svg.h"
#include <curl/curl.h>
#include <sstream>
#include <string>
using namespace std;
const size_t SCREEN_WIDTH = 80;
const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
struct Input
{
vector<double> numbers;
size_t bin_count{};
};
Input input_data(istream& stream, bool prompt)
{
size_t number_count;
if (prompt){
cerr << "Enter number count:";
}
stream >> number_count;
Input in;
in.numbers.resize(number_count);
if (prompt){
cerr << "Enter numbers: ";
}
for(size_t i = 0; i < number_count; i++)
stream >> in.numbers[i];
cerr << "Enter number of bins: ";
stream >> in.bin_count;
return in;
}
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); //ñìåíà òèïà
auto text = reinterpret_cast<const char*>(items);
buffer->write(text, data_size);
return data_size;
}
Input download(const string& address, bool verbose) {
stringstream buffer;
curl_global_init(CURL_GLOBAL_ALL);
CURL* curl = curl_easy_init();
if(curl)
{
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
if (verbose){
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
}
res = curl_easy_perform(curl);
if(res != CURLE_OK){
curl_easy_strerror(res);
exit(1);
}
curl_easy_cleanup(curl);
}
return input_data(buffer, false);
}
int main(int argc, char* argv[])
{
bool verbose = false;
string url;
for (int i = 1; i < argc; ++i) {
string arg = argv[i];
if (arg == "-verbose") {
verbose = true;
} else if (arg.find("http://") == 0 || arg.find("https://") == 0) {
url = arg;
} else {
cerr << "Invalid argument: " << arg << endl;
cerr << "Usage: " << argv[0] << " [-verbose] [URL]" << endl;
return 1;
}
}
Input input;
if (!url.empty()) {
input = download(url, verbose);
} else {
input = input_data(cin, true);
}
auto bins = make_histogram(input.numbers, input.bin_count);
//show_histogram_svg_vertical(bins);
show_histogram_svg(bins);
}