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87 строки
2.4 KiB
C++
87 строки
2.4 KiB
C++
#include <curl/curl.h>
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#include <sstream>
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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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struct Input {
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vector<double> vec;
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size_t korz{};
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};
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Input input_data(istream& in, bool prompt = false) {
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Input lin;
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size_t n, korz;
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if(prompt)
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cerr << "Number of elements: ";
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in >> n;
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lin.vec.resize(n);
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for (size_t i = 0; i < n; i++)
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in >> lin.vec[i];
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if(prompt)
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cerr << "Enter bin count: ";
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in >> lin.korz;
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return lin;
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}
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size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx){
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stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
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size_t data_size = item_size * item_count;
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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 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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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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CURLcode res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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if (res != CURLE_OK) {
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cerr << "cURL error: " << curl_easy_strerror(res) << endl;
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exit(1);
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}
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return input_data(buffer, false);
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}
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}
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int main(int argc, char* argv[]) {
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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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}else{
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input = input_data(cin, true);
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}
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auto bins = make_histogram(input.korz, input.vec);
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show_histogram_svg(bins);
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return 0;
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}
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//Ïîëó÷åíèå àðãóìåíòîâ êîìàíäû. Ñóòü â òîì, ÷òî êàæäûé àðãóìåíò (ïîòîê ñèìâîëîâ) èìååò ñâîé ïîðÿäêîâûé íîìåð.
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//×òîáû ïðîãðàììà ìîëãà âîñïðèíèìàòü àðãóìåíòû è êîìàíäû òàê, êàê íàäî, àðãóìåíòû, êàê è ñëîâà â ëþáîì ÿçûêå, ðàçäåëÿþòñÿ ïðîáåëàìè.
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// íàøåì ñëó÷àå ïðîãðàììà ïîêàçûâàåò, êàêîé ïîðÿäêîâûé íîìåð èìååò êàæäîå ñëîâî ñ ïîìîùüþ ïðîáåëîâ.
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//Äëÿ NUL íè÷åãî íå âûâåäåòñÿ òàê êàê ìû âûâåëè èòîãîâûé ïîòîê â íèêóäà.
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/*
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C:\Users\Natasha\Desktop\Ïðîãè Ñ2\cs-lab34\bin\Debug>cs-lab34.exe -x --y /z w
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argc = 5
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argv[0] = cs-lab34.exe
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argv[1] = -x
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argv[2] = --y
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argv[3] = /z
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argv[4] = w
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C:\Users\Natasha\Desktop\Ïðîãè Ñ2\cs-lab34\bin\Debug>cs-lab34.exe param "with spaces"
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argc = 3
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argv[0] = cs-lab34.exe
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argv[1] = param
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argv[2] = with spaces
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C:\Users\Natasha\Desktop\Ïðîãè Ñ2\cs-lab34\bin\Debug>cs-lab34.exe param <marks.txt >NUL
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*/
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