/usr/share/yacas/include/tokenizer.h is in yacas 1.3.1-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | /** \file tokenizer.h
* definitions of input output classes that read and write from string.
*/
#ifndef __tokenizer_h__
#define __tokenizer_h__
#include "yacasbase.h"
#include "lispstring.h"
#include "lispio.h"
#include "lisphash.h"
class LispTokenizer : public YacasBase
{
public:
LispTokenizer() : iToken() {}
/// NextToken returns a string representing the next token,
/// or an empty list.
virtual LispString * NextToken(LispInput& aInput,
LispHashTable& aHashTable);
virtual ~LispTokenizer(){}
protected:
LispString iToken; //Can be used as a token container.
};
class CommonLispTokenizer : public LispTokenizer
{
public:
virtual LispString * NextToken(LispInput& aInput,
LispHashTable& aHashTable);
};
// utility functions
LispBoolean IsDigit(LispChar c);
LispBoolean IsAlpha(LispChar c);
LispBoolean IsAlNum(LispChar c);
LispBoolean IsSymbolic(LispChar c);
#endif
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