c語言 c到c++的注釋轉換

c語言 c到c++的注釋轉換

#include<stdio.h>
 
typedef enum Tag
{
    C_ANNOTAION_START = 0,    // C注釋的開始
    C_ANNOTAION_END = 1,  // C注釋的結束
}Tag;
 
typedef enum State
{
    SUCCESS = 1,//成功
    OPEN_FILE_ERROR,//打開文件失敗
    NO_MATCH,//文檔不匹配
    OTHER,//其他
}State;
 
State AnnotationConvert(FILE* cIn,FILE* cOut )
{
    char FirstCh, SecondCh;
    Tag Is_Start = C_ANNOTAION_END;//是否開始轉換
    do
    {
        FirstCh = fgetc(cIn);
        switch (FirstCh)
        {
            // 1.一般情況
            ///* int i = 0; */
        case '/':
            SecondCh = fgetc(cIn);
 
            // 3.匹配問題
            ///*int i = 0;/*xxxxx*/ 
            if (SecondCh == '*'&&Is_Start == C_ANNOTAION_END)
            {  
                fputc('/', cOut);
                fputc('/', cOut);
                Is_Start = C_ANNOTAION_START;
             
            }
            else if (SecondCh == '/')//c++注釋問題
            {
                char Next = fgetc(cIn);
                fputc('/', cOut);
                fputc('/', cOut);
                while (Next != '\n'&&Next!=EOF)
                {
                    fputc(Next, cOut);
                    Next = fgetc(cIn);
                }
                //FirstCh = Next;
                fseek(cIn, -1, SEEK_CUR);
            }
            else
            {
                fputc(FirstCh, cOut);
                fputc(SecondCh, cOut);
            }
            break;
        case '*':
             
            SecondCh = fgetc(cIn);
             
            // 2.換行問題/5.連續注釋問題
            ///* int i = 0; */int j = 0;
            ///* int i = 0; */
            if (SecondCh == '/')
            {
                char Next = 0;
                Next = fgetc(cIn);
                if (Next != '\n'&&Next != EOF)
                {
                    fseek(cIn, -1, SEEK_CUR);
                    fputc('\n', cOut);
                }
                else
                {
                    fputc('\n', cOut);
                }
                Is_Start = C_ANNOTAION_END;
            }
            else if (SecondCh == '*')
            {
                fputc(FirstCh,cOut);
                fseek(cIn, -1, SEEK_CUR);
                break;
            }
            else
            {
                fputc(FirstCh, cOut);
                fputc(SecondCh, cOut);
            }  
            break;
            // 4.多行注釋問題
        case '\n':
            fputc('\n', cOut);
            if (Is_Start == C_ANNOTAION_START)
            {
                fputc('/', cOut);
                fputc('/', cOut);
            }
            break;
        default:
            fputc(FirstCh, cOut);
            break;
        }
    } while (FirstCh != EOF);
    if (Is_Start == C_ANNOTAION_START)
    {
        return NO_MATCH;
    }
    return SUCCESS;
}
 
State StartAnnotationConvert(const char * input, const char * output)
{
    FILE* cIn = fopen(input, "r");
    FILE* cOut = fopen(output, "w");
    State ret = 0;
    if (cIn == NULL)
    {
        fclose(cOut);
        return OPEN_FILE_ERROR;
    }
    if (cOut == NULL)
    {
        fclose(cIn);
        return OPEN_FILE_ERROR;
    }
    ret=AnnotationConvert(cIn, cOut);
    fclose(cIn);
    fclose(cOut);
    return ret;
}
 
int main()
{
    State ret = StartAnnotationConvert("input.c", "output.c");
    if (ret == SUCCESS)
    {
        printf("轉換成功！\n");
    }
    else if (ret ==NO_MATCH)
    {
        printf("文檔未找到匹配結尾\n");
    }
    else if (ret == OPEN_FILE_ERROR)
    {
        printf("打開文件失敗\n");
    }
     
    return 0;
}