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124 строки
2.8 KiB
C++
124 строки
2.8 KiB
C++
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#include <curl/curl.h>
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#include <vector>
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#include <sstream>
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#include <string>
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#include <iostream>
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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"string"
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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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};
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Input
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input_data(istream& in, bool prompt) {
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size_t number_count;
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if (prompt) {
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cerr << "Enter number count: ";
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}
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in >> number_count;
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Input iinn;
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iinn.numbers.resize(number_count);
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if (prompt) {
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cerr << "Enter numbers: ";
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}
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for (size_t i = 0; i < number_count; i++)
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{
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in >> iinn.numbers[i];
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}
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if (prompt) {
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cerr << "Enter bin count: ";
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}
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in >> iinn.bin_count;
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return iinn;
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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_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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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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void usage() {
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cout << "Usage: (lab34.exe [-format {text|svg}] URL) or (lab34.exe URL [-format {text|svg}])\n" ;
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exit(1);
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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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string format_option;
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if ((argc > 3) && (strcmp(argv[1], "-format") == 0))
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{
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if (strcmp(argv[2], "svg") == 0) {
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format_option = "svg";
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}
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else if (strcmp(argv[2], "text") == 0) {
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format_option = "text";
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}
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input = download(argv[3]);
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}
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else if ((argc > 3) && (strcmp(argv[2], "-format") == 0))
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{
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if (strcmp(argv[3], "svg") == 0) {
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format_option = "svg";
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}
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else if (strcmp(argv[3], "text") == 0) {
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format_option = "text";
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}
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input = download(argv[1]);
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}
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else {
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usage();
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}
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if (format_option != "text" && format_option != "svg") {
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usage();
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}
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const auto bins = make_histogram(input.numbers, input.bin_count);
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if (format_option == "text") {
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show_histogram_text(bins, input.bin_count);
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}
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else if (format_option == "svg") {
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show_histogram_svg(bins);
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}
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return(0);
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}
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