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// C++ Interface: statestartlangelem
//
// Description:
//
//
// Author: Lorenzo Bettini <http://www.lorenzobettini.it>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef STATESTARTLANGELEM_H
#define STATESTARTLANGELEM_H
#include "langelem.h"
namespace srchilite {
class StringDef;
class StateLangElem;
/**
A language element that may start a new state/environment
*/
class StateStartLangElem: public LangElem {
private:
/// the exit level
unsigned int exit;
/// whether to exit all states
bool exit_all;
/// the possible State of which we represent the start.
StateLangElem *statelangelem;
public:
/**
* @param names the element names (one for each subexpression)
* @param exit whether to exit a number of states (default 0)
* @param all whether to exit all states
*/
StateStartLangElem(const std::string &n, unsigned int exit = 0, bool all =
false);
virtual ~StateStartLangElem();
virtual const std::string toString() const;
/**
* Sets the "exit" property of this element (i.e., if the element is match
* then exit one state)
* @param level the exit level (default to 1)
*/
void setExit(unsigned int level = 1) {
exit = level;
}
/**
* Sets the "exit all" property of this element (i.e., if the element is match
* then exit all states and get back to the main initial state)
*/
void setExitAll() {
exit_all = true;
}
/**
* @return whether the "exit" property is set
*/
bool exitAll() const {
return exit_all;
}
/**
* @return whether the "exit all" property is set
*/
unsigned int getExit() const {
return exit;
}
/**
* @return the state for which this element represents the start
*/
StateLangElem *getStateLangElem() const {
return statelangelem;
}
/**
* Sets the state for which this element represents the start
* @param s the state for which this element represents the start
*/
void setStateLangElem(StateLangElem *s) {
statelangelem = s;
}
};
}
#endif
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