简单小项目：注释转换

柔情只为你懂 2022-06-04 06:48 210阅读 0赞

**NotesExchange.h**

#ifndef __NOTESEXCHANGE_H__
    
    #define __NOTESEXCHANGE_H__
    
    #include <stdio.h>
    #include <windows.h>
    
    #define INPUTFILE "input.c"
    #define OUTPUTFILE "output.c"
    
    enum
    {
        CSTATUS,//C注释状态
        CPPSTATUS,//C++注释状态
        NULLSTATUS,//普通状态
        EOFSTATUS//结束状态
    
    };
    
    void notes_exchange();
    void notes_check(FILE *ifp, FILE* ofp);
    void do_null_status(FILE *ifp, FILE *ofp);
    void do_c_status(FILE *ifp, FILE *ofp);
    void do_cpp_status(FILE *ifp, FILE *ofp);
    
    
    
    
    #endif //__NOTESEXCHANGE_H__

**NotesExchange.c**

#define _CRT_SECURE_NO_WARNINGS -1
    
    #include "NotesExchange.h"
    
    int status = NULLSTATUS;
    
    void do_null_status(FILE *ifp,FILE *ofp)
    {
        int ch = fgetc(ifp);
    
        switch (ch)
        {
        case '/':
        {
                    int s = fgetc(ifp);
                    switch (s)
                    {
                    case '*':
                        fputc('/', ofp); 
                        fputc('/', ofp);
                        status = CSTATUS;
                        break;
                    case '/':
                        fputc('/', ofp);
                        fputc('/', ofp);
                        status = CPPSTATUS;
                        break;
                    case EOF:
                        fputc('/', ofp);
                        status = EOFSTATUS;
                        break;
                    default:
                        fputc('/', ofp);
                        fputc(s, ofp);
                        break;
                    }
        }
            break;
        case EOF:
            status = EOFSTATUS;
            break;
        case '\n':
            fputc(ch,ofp);
            break;
        default:
            fputc(ch,ofp);
            break;
        }
    }
    
    void do_c_status(FILE *ifp, FILE *ofp)
    {
        int ch = fgetc(ifp);
    
        switch (ch)
        {
        case '*':
        {
                    int s = fgetc(ifp);
    
                    switch (s)
                    {
                    case '/':
                        fputc('\n',ofp);
                        status = NULLSTATUS;
                        break;
                    case '/n':
                        fputc('\n', ofp);
                        fputc('/', ofp);
                        fputc('/', ofp);
                        break;
                    case EOF:
                        status = EOFSTATUS;
                        break;
                    default:
                        fputc('*', ofp);
                        ungetc(s,ifp);
                        break;
                    }
        }
            break;
        case '\n':
            fputc('\n',ofp);
            fputc('/', ofp);
            fputc('/', ofp);
            break;
        case EOF:
            status = EOFSTATUS;
            break;
        default:
            fputc(ch,ofp);
            break;
        }
    }
    
    void do_cpp_status(FILE *ifp, FILE *ofp)
    {
        int ch = fgetc(ifp);
    
        if (ch!='\n')
        {
            fputc(ch,ofp);
        }
        else
        {
            fputc(ch, ofp);
            status = NULLSTATUS;
        }
    }
    
    
    static void notes_check(FILE *ifp,FILE* ofp)
    {
        while (status != EOFSTATUS)
        {
            switch (status)
            {
            case NULLSTATUS:
                do_null_status(ifp,ofp);
                break;
            case CSTATUS:
                do_c_status(ifp, ofp);
                break;
            case CPPSTATUS:
                do_cpp_status(ifp, ofp);
                break;
            case EOFSTATUS:
                break;
            default:
                break;
            }
        }
    
    }
    
    void notes_exchange()
    {
        FILE *ifp = fopen("ITPUTFILE.txt", "r");
        FILE *ofp = fopen("OUTPUTFILE.txt", "w");
    
        if (ifp == NULL||ofp == NULL)
        {
            perror("fopen");
            return;
        }
    
        notes_check(ifp,ofp);
    
        fclose(ifp);
        fclose(ofp);
    }

**test.c**

#define _CRT_SECURE_NO_WARNINGS -1
    
    #include "NotesExchange.h"
    
    
    int main()
    {
        notes_exchange();
    
        system("pause");
        return 0;
    }

![这里写图片描述][SouthEast]

[SouthEast]: /images/20220604/d5fdaba96ab54baa95d44823c5117527.png