注釋轉換（c轉換為c++）

標籤：

//input.c中要處理的情況如下

input.c

/*int i = 0;*/
/*int y = 0;*/int j = 0;
/*int x = 0;/*12345678*/
/*
int h = 0;
int g = 0;
int j = 0;
*/int q = 0;
/**//**/
/* ****** */

// /*1234567890*/

源檔案Annotationconvert.c

<span style="font-size:24px;">#include<stdio.h>#include<errno.h>#include<assert.h>#pragma warning(disable:4996)typedef enum STATE{FILE_ERROR,   //檔案錯誤FILE_SUCCESS, //檔案成功other_error, //其他錯誤NO_MATCH,   //檔案不匹配}STA;typedef enum tag{tag_begin,//注釋中tag_end,//不在注釋中}TAG;STA AnnotationConvert(FILE* infile, FILE* outfile){char firstch, secondch;int next;assert(infile);assert(outfile);TAG a = tag_end;do{firstch = fgetc(infile);switch (firstch){case'/':secondch = fgetc(infile);if (secondch == '*' && a == tag_end){fputc('/', outfile);fputc('/', outfile);a = tag_begin;}       else if (secondch == '/'){   fputc(firstch, outfile);   fputc(secondch, outfile);next = fgetc(infile);while (next != EOF && next != '\n'){fputc(next, outfile);next = fgetc(infile);}    a = tag_end;}else{fputc(firstch, outfile);fputc(secondch, outfile);}break;case'*':secondch = fgetc(infile);if (secondch == '/'){fputc('\n', outfile);a = tag_end;}else if (secondch == '*'){fputc(firstch, outfile);fseek(infile, -1, SEEK_CUR);}else{fputc(firstch, outfile);fputc(secondch, outfile);}break;case'\n':if (a == tag_begin){fputc(firstch, outfile);fputc('/', outfile);fputc('/', outfile);}else{fputc(firstch, outfile);}break;default:fputc(firstch, outfile);break;}} while (firstch != EOF);if (a == tag_end){return FILE_SUCCESS;}else{return NO_MATCH;}return 0;}STA StartConvert(){STA  s;const char* infileName = "input.c";const char* outfileName = "output.c";FILE* infile = fopen(infileName, "r");FILE* outfile = fopen(outfileName, "w");if (infile == NULL){return FILE_ERROR;}if (outfile == NULL){fclose(infile);return FILE_ERROR;}s = AnnotationConvert(infile, outfile);fclose(infile);fclose(outfile);return s;}int main(){STA ret = StartConvert();if (ret == FILE_ERROR){printf("檔案錯誤:%d\n", errno);}else if (ret == FILE_SUCCESS){printf("轉換成功\n");}else if (other_error){printf("其他錯誤:%d\n", errno);}else{printf("不匹配\n");}return 0;}</span>

output.c中結果應如下：

//int i = 0;


//int y = 0;
int j = 0;
//int x = 0;/*12345678


//
//int h = 0;
//int g = 0;
//int j = 0;
//
int q = 0;
//
//


// ****** 


// /*1234567890*/

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注釋轉換（c轉換為c++）