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/***************************************************************************
* CT Unit of Time Interval Header *
* -------------------------------------------------------------------- *
* Copyright (C) 1999, Gary Meyer <gary@meyer.net> *
* -------------------------------------------------------------------- *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef CTUNIT_H
#define CTUNIT_H
// Do not introduce any Qt or KDE dependencies into the "CT"-prefixed classes.
// I want to be able to reuse these classes with another GUI toolkit. -GM 11/99
#include <string>
#include <iostream>
#include <stdlib.h> // system
/**
* A cron table unit parser and tokenizer.
* Parses/tokenizes unit such as "0-3,5,6,10-30/5"
* Also provides default natural language description.
*/
template<int min, int max> class CTUnit
{
public:
/**
* Constant indicating short format.
*/
static const bool shortFormat = 0;
/**
* Constant indicating long format.
*/
static const bool longFormat = 1;
/**
* Initialize including parsing and saving initial image.
*/
CTUnit(const std::string &tokStr = "");
/**
* Base initial image as empty and copy enabled intervals.
*/
CTUnit(const CTUnit& source);
/**
* Destructor.
*/
virtual ~CTUnit();
/**
* Copy enabled intervals.
*/
void operator = (const CTUnit<min,max>& unit);
/**
* Returns tokenization to output stream.
*/
friend std::ostream& operator << (std::ostream& outStr, const CTUnit<min,max>& unit)
{
if (unit.count() == (max - min + 1))
outStr << "*";
else
outStr << ((const CTUnit<min, max>) unit).tokenize();
return outStr;
};
/**
* Parses unit such as "0-3,5,6,10-30/5".
* And initialize array of enabled intervals.
*/
void initialize(const std::string &tokStr = "");
/**
* Parses unit such as "0-3,5,6,10-30/5".
* Does not initialize array of enabled intervals.
*/
void parse(std::string tokStr = "");
/**
* Tokenizes unit into string such as
* "0,1,2,3,5,6,10,15,20,25,30".
*/
std::string tokenize() const;
/**
* Get default natural language description.
*/
virtual std::string describe(const std::string *label) const;
/**
* Lower bound.
*/
int begin();
/**
* Upper bound.
*/
int end();
/**
* Accessor.
*/
bool get(int pos) const;
/**
* Mutator.
*/
void set(int pos, bool value);
/**
* Enable.
*/
void enable(int pos);
/**
* Disable.
*/
void disable(int pos);
/**
* Indicates whether enabled intervals have been modified.
*/
bool dirty() const;
/**
* Total count of enabled intervals.
*/
int count() const;
/**
* Mark changes as applied.
*/
void apply();
/**
* Mark cancel changes and revert to initial or last applied
* image.
*/
void cancel();
private:
int fieldToValue(std::string entry) const;
bool isDirty;
bool enabled[max+1];
bool initialEnabled[max+1];
std::string initialTokStr;
};
#include "ctunit.cpp"
#endif // CTUNIT_H
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