C注释转换为 C++注释

梦里梦外; 2021-09-19 05:16 272阅读 0赞

// 1.一般情况  
/\* int i = 0; \*/  
  
// 2.换行问题  
/\* int i = 0; \*/int m = 0;  
/\* int i = 0; \*/  
int j = 0;  
  
// 3.匹配问题  
/\*int i = 0;/\*xxxxx\*/  
  
// 4.多行注释问题  
/\*  
int i=0;    
int j = 0;  
int k = 0;  
\*/int k = 0;  
  
// 5.连续注释问题  
/\*\*//\*\*/  
  
// 6.连续的\*\*/问题  
/\*\*\*/  
  
// 7.C++注释问题  
// /\*xxxxxxxxxxxx\*/

\#define \_CRT\_SECURE\_NO\_WARNINGS 1

\#include<iostream>

\#include<assert.h>

using namespace std;

typedef enum STATE

C\_BEGIN,      //在c注释段内

C\_END,       //注释结束

C\_NO\_MATCH, //注释不匹配

C\_SUCCESS  //注释转换成功

\}STATE;

int flag = 0;//解决C++注释问题  当 flag == 1 时表示出现C++问题

STATE AnnotationCovert(FILE\* fIn, FILE\* fOut)

assert(fIn);

assert(fOut);

char first, second;

STATE  sta= C\_END;

first = fgetc(fIn);

switch (first)

case '/':// /\*xxxxxxxxxxxx\*/

second = fgetc(fIn);

if (second == '\*'&& sta == C\_END)//>>>>>解决一般问题

fputc('/',fOut);

fputc('/', fOut);

sta = C\_BEGIN;

else if (second == '/')//解决C++注释问题

fputc('/', fOut);

sta = C\_BEGIN;

flag = 1;

else//>>>>>>>>解决匹配问题

fputc(first, fOut);

fputc(second, fOut);

break;

case '\*':

second = fgetc(fIn);

if (second == '/' && sta == C\_BEGIN && flag == 0)

fputc('\\n',fOut);//>>>>>解决换行问题

sta = C\_END;

else if (second == '/' && sta == C\_BEGIN && flag == 1)//解决C++注释问题

fputc(first, fOut);

fputc(second, fOut);

sta = C\_END;

flag = 0;

else

fputc(first, fOut);

fseek(fIn, -1, SEEK\_CUR);//>>>>>>解决连续的\*\*/问题

break;

case '\\n':     //>>>>>>>>>>>>>解决多行注释问题

fputc(first, fOut);

if (sta == C\_BEGIN)

fputc('/', fOut);

break;

default:

fputc(first, fOut);

break;

\} while (first != EOF);

if (sta == C\_END)

return C\_SUCCESS;

else

return C\_NO\_MATCH;

void TestConvert()

FILE\* fIn = fopen("input.c", "r");

if (fIn == NULL)

printf("file open fail.   errno:%d\\n", errno);

return;

FILE\* fOut = fopen("output.c", "w");

if (fOut == NULL)

fclose(fIn);

printf("file open fail.   errno:%d\\n", errno);

return;

STATE ret = AnnotationCovert(fIn, fOut);

if (ret == C\_SUCCESS)

cout << "注释转换成功！" << endl;

else if (ret == C\_NO\_MATCH)

cout << "注释转换失败！" << endl;

else

cout << "未知错误！请仔细核查！" << endl;

int main()

TestConvert();

system("pause");

return 0;

![viewfile?f=0AAEF084459BD8A6AEA657A3ADF5C][viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C]

原注释：

![viewfile?f=0AAEF084459BD8A6AEA657A3ADF5C][viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C 1]

转换后的注释：

![viewfile?f=0AAEF084459BD8A6AEA657A3ADF5C][viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C 2]

本文转自 ye小灰灰  51CTO博客，原文链接：http://blog.51cto.com/10704527/1719496，如需转载请自行联系原作者

[viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C]: /images/20210726/59cc1f3d69254f37bbe1878aadf33677.png
[viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C 1]: /images/20210726/2e6b0ac008d4469a9b5d5b738ee3f88e.png
[viewfile_f_0AAEF084459BD8A6AEA657A3ADF5C 2]: /images/20210726/7e917bf0ccb546caa82b0a07cb54d0b3.png