testcontext.h

语法检查程序

/***************************************************************************/
/* NOTE:                                                                   */
/* This document is copyright (c) by Oz Solomon and Yonat Sharon, and is   */
/* bound by the MIT open source license.                                   */ 
/* See License.txt or visit www.opensource.org/licenses/mit-license.html   */
/***************************************************************************/

#ifndef TEST_CONTEXT_H
#define TEST_CONTEXT_H

#include <iostream>
#include <string>
#include "CodeParser.h"

class TestContext : public CodeParser::Context
{
public:
    typedef CodeParser::Position Position;

    TestContext(const char* str) : itsLastPos(0), itsString(str) {}
    virtual void BegString(Position pos) {itsLastPos = pos;}
    virtual void EndString(Position pos) {Print(pos);}
    virtual void BegChar(Position pos) {itsLastPos = pos;}
    virtual void EndChar(Position pos) {Print(pos);}
    virtual void BegLineComment(Position pos) {itsLastPos = pos;}
    virtual void EndLineComment(Position pos) {Print(pos-1);}
    virtual void BegBlockComment(Position pos) {itsLastPos = pos;}
    virtual void EndBlockComment(Position pos) {Print(pos);}
private:
    Position itsLastPos;
    const char* itsString;
    void Print(Position pos)
    {
        std::string s(itsString+itsLastPos, pos-itsLastPos+1);
        std::cout << s << endl;
    }
};

#endif // TEST_CONTEXT_H