52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/** \file lispparser.h
|
|
* parsing and printing in the old-fashioned lisp style
|
|
*
|
|
*/
|
|
|
|
#ifndef __lispparser_h__
|
|
#define __lispparser_h__
|
|
|
|
#include "yacasbase.h"
|
|
#include "lispobject.h"
|
|
#include "tokenizer.h"
|
|
#include "lispio.h"
|
|
#include "lisphash.h"
|
|
#include "evalfunc.h"
|
|
class LispParser : public YacasBase
|
|
{
|
|
public:
|
|
LispParser(LispTokenizer& aTokenizer, LispInput& aInput,
|
|
LispEnvironment& aEnvironment);
|
|
virtual ~LispParser();
|
|
virtual void Parse(LispPtr& aResult );
|
|
protected:
|
|
void ParseList(LispPtr& aResult);
|
|
void ParseAtom(LispPtr& aResult,LispString * aToken);
|
|
|
|
public:
|
|
LispTokenizer& iTokenizer;
|
|
LispInput& iInput;
|
|
LispEnvironment& iEnvironment;
|
|
LispInt iListed;
|
|
};
|
|
|
|
|
|
|
|
|
|
class LispPrinter : public YacasBase
|
|
{
|
|
public:
|
|
virtual ~LispPrinter();
|
|
virtual void Print(LispPtr& aExpression, LispOutput& aOutput, LispEnvironment& aEnvironment);
|
|
virtual void RememberLastChar(LispChar aChar);
|
|
private:
|
|
void PrintExpression(LispPtr& aExpression, LispOutput& aOutput,
|
|
LispEnvironment& aEnvironment,
|
|
LispInt aDepth=0);
|
|
|
|
void Indent(LispOutput& aOutput, LispInt aDepth);
|
|
};
|
|
|
|
|
|
#endif
|