code: ЛР4 вариант 2

main.cpp

@@ -73,14 +73,24 @@ Input download(const string& address) {
 int main( int argc, char* argv[]){
     Input input;
     if (argc > 1){
-        input = download(argv[1]);
-    }else{
-        input = input_data(cin, true);
+        string adr, format, type;
+        if ((adr=argv[1]).substr(0,7)!= "http://"){
+            if ((format=argv[1])== "-format"){
+                if ((type=argv[2])== "svg"){
+                    input = download(argv[3]);
+                    const auto bins = make_histogram(input.numbers, input.bin_count);
+                    show_histogram_svg(bins);
+                }else if ((type=argv[2])== "text"){
+                    input = download(argv[3]);
+                    auto bins = make_histogram(input.numbers, input.bin_count);
+                    show_histogram_text(bins, input.bin_count);
+                }else{
+                    cerr << "wrong type, choose format 'svg' or 'txt'";
+                }
+            }else{
+                cerr << "type '-format' to choose output format";
+            }
+        }
     }
-
-    const auto bins = make_histogram(input);
-
-    show_histogram_text(bins, in.bin_count);
-    show_histogram_svg(bins);
 }