89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
//
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// main.cpp
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// curly
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//
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// Created by Bob Polis at 2020-09-01
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// Copyright (c) 2020 SwiftCoder. All rights reserved.
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//
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#include <iostream>
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#include <cstdlib>
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#include <string>
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#include <stdexcept>
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#include <sstream>
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#include <getopt.h>
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#include <libsclogging.hpp>
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#include "requester.hpp"
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#include "interpreter.hpp"
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sc::logger logger {"curly", sc::loglevel::info};
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void print_help() {
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std::cout << "usage: curly [-h|--version]\n";
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std::cout << " -h, --help show this help text and exit\n";
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std::cout << " --version show version number and exit\n";
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}
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void print_version() {
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std::cout << "curly version 1.0\n";
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}
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int main(int argc, const char * argv[]) {
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try {
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std::string base_url {"https://www.swiftcoder.nl/cpp1/"};
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std::string next_url {"start.txt"};
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int opt_char, opt_val;
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struct option long_options[] = {
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{"help", no_argument, nullptr, 'h'},
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{"version", no_argument, &opt_val, 1},
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{nullptr, 0, nullptr, 0}
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};
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while ((opt_char = getopt_long(argc, const_cast<char* const *>(argv), "h", long_options, nullptr)) != -1) {
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std::string arg {optarg ? optarg : ""};
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switch (opt_char) {
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case 0: {
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// handle long-only options here
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switch (opt_val) {
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case 1:
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print_version();
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return EXIT_SUCCESS;
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}
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break;
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}
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case 'h':
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print_help();
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return EXIT_SUCCESS;
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case '?':
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throw std::runtime_error("unrecognized option");
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}
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}
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if (optind == argc) {
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// here when no file args
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}
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for (int i = optind; i < argc; ++i) {
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try {
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next_url = argv[i];
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} catch (const std::runtime_error& ex) {
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std::cerr << "curly: " << ex.what() << '\n';
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}
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}
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bool done {false};
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std::string code;
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requester req;
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interpreter proc;
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while (!done) {
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code = req.get(base_url + next_url);
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std::istringstream in {code};
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next_url = proc.eval(in, done);
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SCInfo(logger, next_url);
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}
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std::cout << next_url << '\n';
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} catch (const std::exception& ex) {
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std::cerr << "curly: " << ex.what() << '\n';
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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