注释转换

来源：互联网发布：sql入门到精通编辑：程序博客网时间：2024/05/21 23:34

#include<errno.h>#include<stdio.h>#include<string.h>#pragma warning (disable:4996)enum STATE{SUCCESS = 0,// 成功FILE_ERROR = 1,// 文件错误NO_MATCH = 2,// 不匹配OTHER_ERROR = 3,// 其他错误};enum TAG{TAG_NONE,// 无效标志TAG_BEGIN,// 开始标志TAG_END,// 结束标志};typedef enum STATE STATE;typedef enum TAG TAG;STATE DealState(FILE* fIn, FILE* fOut){TAG tag = TAG_END;char first, second;do{first = fgetc(fIn);switch(first){case '/': second = fgetc(fIn);if (second == '*') // /* -> //{//// 3.匹配问题--通过tag标志识别//if (tag == TAG_END){fputc('/', fOut);fputc('/', fOut);tag = TAG_BEGIN;}}else if (second == '/'){char next;//// 7.C++注释问题--读完当前行//fputc('/', fOut);fputc('/', fOut);do {next = fgetc(fIn);if (next == EOF)break;fputc(next, fOut);}while(next != '\n');}else{fputc(first, fOut);fputc(second, fOut);}break;case '\n'://// 4.多行注释问题--如果是C++注释，则在行首添加////fputc('\n', fOut);if (tag == TAG_BEGIN){fputc('/', fOut);fputc('/', fOut); }break;case '*':second = fgetc(fIn); if (second == '/'){// 检查标志if (tag == TAG_BEGIN){char next;tag = TAG_END;// 2.换行问题// 5.连续注释问题next = fgetc(fIn);if (next == EOF){break;}else if (next != '\n'){fputc('\n', fOut);fseek(fIn, -1, SEEK_CUR);}else{fputc(next, fOut);}}}else if(second == '*'){// 6.连续的**/收尾fputc(first, fOut);fseek(fIn, -1, SEEK_CUR);}break;default:if (first != EOF){fputc(first, fOut);}break;}}while (first != EOF);if (tag != TAG_END){return NO_MATCH;}else{return SUCCESS;}}// 注释转换STATE AnnotationConvert (const char* inFileName, const char* outFileName){STATE ret;FILE* fIn = fopen (inFileName, "r");FILE* fOut = fopen (outFileName, "w");if (fIn == 0){return FILE_ERROR;}if (fOut == 0){fclose(fIn);return FILE_ERROR;}//// 处理状态机// ret = DealState (fIn, fOut);fclose(fIn);fclose(fOut);return ret;}void StartConvert (){const char* inFileName = "input.c";const char* outFileName = "output.c";STATE s = AnnotationConvert(inFileName, outFileName);if (s == SUCCESS) {printf("Convert Success\n");}else if (s == FILE_ERROR){printf("File Error: %d\n", errno);}else if (s == NO_MATCH){printf("No Match\n");}else{printf("Other Error\n");}}

处理的问题

// 1.一般情况/* int i = 0; */// 2.换行问题/* int i = 0; */int j = 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*/// 8.C注释本身不匹配/* int i = 0;

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