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//--------------------------------------------------------------------
// $Id: GetOpt.hpp 4570 2004-07-05 21:57:23Z cjm $
//--------------------------------------------------------------------
//
// Free GetOpt
// Copyright 2000 by Christopher J. Madsen
// See GetOpt.cpp for license information
//
// Process command line arguments
//
//--------------------------------------------------------------------
#ifndef INCLUDED_GETOPT_HPP
#define INCLUDED_GETOPT_HPP
class GetOpt
{
public:
struct Option;
enum Connection { nextArg, withEquals, adjacent };
enum Flag { needArg = 0x01, repeatable = 0x02 };
enum Found { notFound, noArg, withArg };
enum Type { optArg, optLong, optShort };
typedef bool (ArgFunc)(GetOpt* getopt, const Option* option,
const char* asEntered,
Connection connected, const char* argument,
int* usedChars);
typedef void (ErrorFunc)(const char* option, const char* message);
struct Option
{
char shortName;
const char* longName;
Found* found;
unsigned flag;
ArgFunc* function;
void* data;
}; // end GetOpt::Option
bool error;
ErrorFunc* errorOutput;
const char* optionStart;
protected:
const Option* optionList;
int argc;
int argi, chari;
const char** argv;
bool normalOnly;
const Option* returningAll;
char shortOptionBuf[3];
public:
explicit GetOpt(const Option* aList);
void init(int theArgc, const char** theArgv);
int currentArg() const { return argi; };
bool nextOption(const Option*& option, const char*& asEntered);
int process(int theArgc, const char** theArgv);
void reportError(const char* option, const char* message);
// Standard callback functions:
#ifndef GETOPT_NO_STDIO
static void printError(const char* option, const char* message);
#endif
static bool isFloat(GetOpt* getopt, const Option* option,
const char* asEntered,
Connection connected, const char* argument,
int* usedChars);
static bool isLong(GetOpt* getopt, const Option* option,
const char* asEntered,
Connection connected, const char* argument,
int* usedChars);
static bool isString(GetOpt* getopt, const Option* option,
const char* asEntered,
Connection connected, const char* argument,
int* usedChars);
protected:
void checkReturnAll();
const Option* findShortOption(char option) const;
const Option* findLongOption(const char* option);
bool nextOption(const char*& option, Type& type, int& posArg);
}; // end GetOpt
#endif // INCLUDED_GETOPT_HPP
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