Update to include BayesNet 1.0.3
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87
src/modules/CommandParser.cc
Normal file
87
src/modules/CommandParser.cc
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@@ -0,0 +1,87 @@
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#include "CommandParser.h"
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#include <iostream>
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#include <sstream>
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#include <algorithm>
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#include "Colors.h"
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#include "Utils.h"
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namespace platform {
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void CommandParser::messageError(const std::string& message)
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{
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std::cout << Colors::RED() << message << Colors::RESET() << std::endl;
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}
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std::pair<char, int> CommandParser::parse(const std::string& color, const std::vector<std::tuple<std::string, char, bool>>& options, const char defaultCommand, const int maxIndex)
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{
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bool finished = false;
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while (!finished) {
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std::stringstream oss;
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std::string line;
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oss << color << "Choose option (";
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bool first = true;
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for (auto& option : options) {
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if (first) {
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first = false;
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} else {
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oss << ", ";
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}
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oss << std::get<char>(option) << "=" << std::get<std::string>(option);
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}
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oss << "): ";
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std::cout << oss.str();
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getline(std::cin, line);
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std::cout << Colors::RESET();
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line = trim(line);
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if (line.size() == 0)
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continue;
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if (all_of(line.begin(), line.end(), ::isdigit)) {
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command = defaultCommand;
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index = stoi(line);
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if (index > maxIndex || index < 0) {
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messageError("Index out of range");
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continue;
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}
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finished = true;
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break;
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}
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bool found = false;
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for (auto& option : options) {
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if (line[0] == std::get<char>(option)) {
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found = true;
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// it's a match
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line.erase(line.begin());
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line = trim(line);
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if (std::get<bool>(option)) {
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// The option requires a value
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if (line.size() == 0) {
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messageError("Option " + std::get<std::string>(option) + " requires a value");
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break;
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}
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try {
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index = stoi(line);
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if (index > maxIndex || index < 0) {
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messageError("Index out of range");
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break;
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}
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}
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catch (const std::invalid_argument& ia) {
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messageError("Invalid value: " + line);
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break;
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}
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} else {
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if (line.size() > 0) {
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messageError("option " + std::get<std::string>(option) + " doesn't accept values");
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break;
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}
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}
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command = std::get<char>(option);
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finished = true;
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break;
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}
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}
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if (!found) {
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messageError("I don't know " + line);
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}
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}
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return { command, index };
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}
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} /* namespace platform */
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