commandlineutils.h

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#ifndef APPLICATION_UTILITIES_COMMANDLINEUTILS_H
#define APPLICATION_UTILITIES_COMMANDLINEUTILS_H
 
#include "../global.h"
 
#include <optional>
#include <ostream>
 
#ifdef PLATFORM_WINDOWS
#include <memory>
#include <vector>
#endif
 
namespace CppUtilities {

enum class Response { None, Yes, No };
 
CPP_UTILITIES_EXPORT bool confirmPrompt(const char *message, Response defaultResponse = Response::None);
CPP_UTILITIES_EXPORT std::optional<bool> isEnvVariableSet(const char *variableName);
 
#ifdef PLATFORM_WINDOWS
CPP_UTILITIES_EXPORT bool handleVirtualTerminalProcessing();
CPP_UTILITIES_EXPORT void startConsole();
CPP_UTILITIES_EXPORT std::pair<std::vector<std::unique_ptr<char[]>>, std::vector<char *>> convertArgsToUtf8();
#define CMD_UTILS_START_CONSOLE ::CppUtilities::startConsole();
#define CMD_UTILS_CONVERT_ARGS_TO_UTF8                                                                                                               \
    auto utf8Args = ::CppUtilities::convertArgsToUtf8();                                                                                             \
    argv = utf8Args.second.data();                                                                                                                   \
    argc = static_cast<int>(utf8Args.second.size());
#define CMD_UTILS_HANDLE_VIRTUAL_TERMINAL_PROCESSING ::CppUtilities::handleVirtualTerminalProcessing();
#else
#define CMD_UTILS_START_CONSOLE
#define CMD_UTILS_CONVERT_ARGS_TO_UTF8
#define CMD_UTILS_HANDLE_VIRTUAL_TERMINAL_PROCESSING
#endif

struct TerminalSize {
    TerminalSize(unsigned short rows = 0, unsigned short columns = 0, unsigned short width = 0, unsigned short height = 0);

    unsigned short rows;
    unsigned short columns;
    unsigned short width;
    unsigned short height;
};
 
inline TerminalSize::TerminalSize(unsigned short rows, unsigned short columns, unsigned short width, unsigned short height)
    : rows(rows)
    , columns(columns)
    , width(width)
    , height(height)
{
}
 
CPP_UTILITIES_EXPORT TerminalSize determineTerminalSize();

class CPP_UTILITIES_EXPORT Indentation {
public:
    Indentation(unsigned char level = 4, char character = ' ')
        : level(level)
        , character(character)
    {
    }
 
    Indentation operator+(unsigned char level)
    {
        return Indentation(this->level + level, character);
    }
 
    unsigned char level;
    char character;
};
 
inline CPP_UTILITIES_EXPORT std::ostream &operator<<(std::ostream &out, Indentation indentation)
{
    for (unsigned char i = 0; i < indentation.level; ++i) {
        out << indentation.character;
    }
    return out;
}
 
} // namespace CppUtilities
 
#endif // APPLICATION_UTILITIES_COMMANDLINEUTILS_H