version 0.0.1

source/Cli.cpp

@@ -0,0 +1,107 @@
+#include "Cli.hpp"
+
+Cli::Cli() {
+  add_to_commands_list("help, h", "Help Screen", std::bind(&Cli::print_help, &*this, std::placeholders::_1));
+  add_to_commands_list("exit", "Exit Program", std::bind(&Cli::exit_program, &*this, std::placeholders::_1));
+}
+
+void Cli::add_to_commands_list(std::string names, std::string desc, Func func) {
+  Command cmd = std::make_tuple(names, desc, func);
+  _commands.push_back(cmd);
+}
+
+//--------------------------------------------------------------------------------------------------
+//------------------------------------------- Run --------------------------------------------------
+//--------------------------------------------------------------------------------------------------
+
+void Cli::run() {
+  while(!_exit) { iterate(); }
+}
+
+void Cli::iterate() {
+  // Ask for input
+  std::cout << "\033[1;36mAegis: \033[0m";
+  std::string input;
+  std::cin >> input;
+
+  // Get parameters
+  std::deque<std::string> parameters;
+  std::string line;
+  std::getline(std::cin, line);
+  std::istringstream iss(line);
+  std::string arg;
+  while (iss >> arg) {    
+    parameters.push_back(arg);
+  }
+
+  // Call matching function
+  Func todo = get_function(input);
+  todo(parameters);
+}
+
+Func Cli::get_function(std::string input) {
+  for (Command cmd : _commands) {
+    // Split command names from _commands
+    std::vector<std::string> names;
+    boost::split(names, std::get<0>(cmd), boost::is_any_of(", "));
+
+    // Check if input matches any of the names
+    for (std::string name : names) {
+      if (name == input) {
+        return std::get<2>(cmd);
+      }
+    }
+  }
+
+  // Default: Basic help command
+  Cli cli;
+  return std::bind(&Cli::default_help, cli, std::placeholders::_1);
+}
+
+//--------------------------------------------------------------------------------------------------
+//--------------------------------------- Local Methods --------------------------------------------
+//--------------------------------------------------------------------------------------------------
+
+void Cli::default_help(Args args) {
+  print("Try 'help'");
+}
+
+void Cli::exit_program(Args args) {
+  _exit = true;
+}
+
+void Cli::print_help(Args args) {
+  print("Commands:\n");
+  if (_commands.size() == 0) {
+    print("Expty.");
+    return;
+  }
+
+  // determine max length of first elements
+  int max_size = 0;
+  for (auto& c : _commands) {
+    int len = std::get<0>(c).length();
+    max_size = (len > max_size) ? len : max_size;
+  }
+
+  // print every available command
+  for (auto& c : _commands) {
+    int spaces_to_add = max_size - std::get<0>(c).length();
+    if (spaces_to_add < 0 || spaces_to_add > 50) { throw "Internal fatal error."; }
+
+    
+    std::string command_text;
+    command_text += std::get<0>(c);
+    for (int i = 0; i < spaces_to_add; i++) { command_text += " "; }
+    command_text += "  " + std::get<1>(c);
+    print(command_text);
+  }
+}
+
+void Cli::syn(Args args) {
+  if (!args.empty()) {
+    print("SYN " + args[0]);
+  } else {
+    print("SYN");
+  }
+}