#include <cstdio>
#include <string>
#include <windows.h>

int main(int argc, char **argv)
{
    if(argc < 2) {
        printf("No arguments given.\n");
        return 0;
    }
    std::string command;
    for(int i=1; i<argc; ++i) {
        command += argv[i];
        if(i != argc-1) command += ' ';
    }
    std::string output;
    int gravisIndex = -1;
    for(size_t i=0; i<command.size(); ++i) {
        if(command[i] == '`') {
            if(gravisIndex >= 0) {
                TCHAR tempPath[MAX_PATH];
                DWORD tempPathRet = GetTempPath(MAX_PATH, tempPath);

                if(!tempPathRet || tempPathRet > MAX_PATH) {
                    printf("Getting temp path failed.\n");
                    return 0;
                }

                std::string fileName = tempPath;
                fileName += tmpnam(NULL)+1;
                fileName += "tmp";

                std::string sys = command.substr(gravisIndex+1, i-gravisIndex-1);
                sys = sys + " > " + fileName;
                system(sys.c_str());

                FILE *file = fopen(fileName.c_str(), "r");
                if(!file) {
                    printf("Opening temp file failed.\n");
                    return 0;
                }

                char buff[100];
                while(!feof(file)) {
                    if(fgets(buff, 100, file)) {
                        output += buff;
                    }
                }
                fclose(file);

                while(output.size() && (output[output.size()-1] == '\n' ||
                                        output[output.size()-1] == '\r' ||
                                        output[output.size()-1] == ' ')) {
                    output = output.substr(0, output.size()-1);
                }

                gravisIndex = -1;
            }
            else gravisIndex = i;
        }
        else if(gravisIndex < 0) output += command[i];
    }
    system(output.c_str());
}