Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities
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#ifndef APPLICATION_UTILITIES_ARGUMENTPARSER_PRIVATE_H
#define APPLICATION_UTILITIES_ARGUMENTPARSER_PRIVATE_H
#include "./argumentparser.h"
#include "./commandlineutils.h"
#include <optional>
namespace CppUtilities {
class CPP_UTILITIES_EXPORT ArgumentReader {
public:
ArgumentReader(ArgumentParser &parser, const char *const *argv, const char *const *end, bool completionMode = false);
ArgumentReader &reset(const char *const *argv, const char *const *end);
bool read();
bool read(ArgumentVector &args);
/// \brief The associated ArgumentParser instance.
ArgumentParser &parser;
/// \brief The Argument instances to store the results. Sub arguments of args are considered as well.
ArgumentVector &args;
/// \brief An index which is incremented when an argument is encountered (the current index is stored in the occurrence) or a value is encountered.
std::size_t index;
/// \brief Points to the first argument denotation and will be incremented when a denotation has been processed.
const char *const *argv;
/// \brief Points to the end of the \a argv array.
const char *const *end;
/// \brief The last Argument instance which could be detected. Set to nullptr in the initial call. Used for Bash completion.
Argument *lastArg;
/// \brief Points to the element in argv where lastArg was encountered. Unspecified if lastArg is not set.
const char *const *lastArgDenotation;
/// \brief The currently processed abbreviation denotation (should be substring of one of the args in argv). Set to nullptr for processing argv from the beginning (default).
const char *argDenotation;
/// \brief The type of the currently processed abbreviation denotation. Unspecified if argDenotation is not set.
unsigned char argDenotationType;
/// \brief Whether completion mode is enabled. In this case reading args will be continued even if an denotation is unknown (regardless of unknownArgumentBehavior()).
bool completionMode;
};
class Wrapper;
std::ostream &operator<<(std::ostream &os, const Wrapper &wrapper);
class Wrapper {
friend std::ostream &operator<<(std::ostream &os, const Wrapper &wrapper);
public:
Wrapper(const char *str, Indentation currentIndentation = Indentation());
private:
const char *const m_str;
Indentation m_indentation;
};
inline Wrapper::Wrapper(const char *str, Indentation currentIndentation)
: m_str(str)
, m_indentation(currentIndentation)
{
}
std::optional<bool> isEnvVariableSet(const char *variableName);
} // namespace CppUtilities
#endif // APPLICATION_UTILITIES_ARGUMENTPARSER_PRIVATE_H