#ifndef __APushParser_hh__
#define __APushParser_hh__
+#include <string>
+
class APushParser
{
public:
- APushParser(class ALogger& l) : logger(l), factory(0) { };
- APushParser(class ALogger& l, class AMathMLFactory& f) : logger(l), factory(&f) { };
-
+ APushParser(class ALogger& l) : logger(l), factory(0), freeze_level(0) { };
+ APushParser(class ALogger& l, class AMathMLFactory& f) : logger(l), factory(&f), freeze_level(0) { };
virtual ~APushParser() { };
- virtual void push(const TToken&) = 0;
+
+ virtual void reset(void);
+ virtual void push(const class TToken&) = 0;
+ virtual std::string drop(void) = 0;
virtual void setCursorHint(const std::string&) = 0;
+ virtual bool freeze(void);
+ virtual bool thaw(void);
+ bool frozen(void) const { return freeze_level > 0; };
+
protected:
class ALogger& logger;
class AMathMLFactory* factory;
+
+private:
+ unsigned freeze_level;
};
#endif // __APushParser_hh__