linux資料夾遍歷字串處理等基礎功能函式
阿新 • • 發佈：2018-12-11
/************************************************************************* > File Name: filenameio.h > Author: lcmf > Mail: [email protected] > Created Time: 2018年03月12日 星期一 14時31分22秒 ************************************************************************/ #include<iostream> #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <sys/time.h> #include <stdlib.h> #include <string.h> //#include <io.h> #include <cstring> #include <dirent.h> #include <fcntl.h> #include "filenameio.h" using namespace std; //清空資料夾 bool removeAllFile(char *strDir) { DIR *dp; struct dirent *entry; struct stat statbuf; if ((dp = opendir(strDir)) == NULL) { fprintf(stderr, "cannot open directory: %s\n", strDir); return -1; } chdir (strDir); while ((entry = readdir(dp)) != NULL) { lstat(entry->d_name, &statbuf); if (S_ISREG(statbuf.st_mode)) { remove(entry->d_name); } } return 0; } //剪下檔案 bool CutFile(std::string strSrc, std::string strDis) { FILE *in, *out; char ch ; if ((in = fopen(strSrc.c_str(),"r")) == NULL) { printf("canot find the in.txt file!\n"); return false; } if ((out = fopen(strDis.c_str(),"w"))==NULL) { printf("canot find the out.txt file!\n"); return false; } ch = fgetc(in); while (ch!=EOF) { fputc(ch,out); //putchar(ch); //是in.txt 的內容顯示在dos視窗 下 ch = fgetc(in); } fclose(in); // 關閉檔案 fclose(out); remove(strSrc.c_str()); } //獲取當前執行程式路徑 size_t GetCurrentExePath( char* processdir,char* processname, size_t len) { char* path_end; if(readlink("/proc/self/exe", processdir,len) <=0) return -1; path_end = strrchr(processdir, '/'); if(path_end == NULL) return -1; ++path_end; strcpy(processname, path_end); *path_end = '\0'; return (size_t)(path_end - processdir); } //獲取檔案的最後修改時間 void GetFileLastModifyTime(char *strPath,int *size,long *modify_time) { FILE * fp; int fd; struct stat buf; fp=fopen(strPath,"r"); //C.zip in current directory, I use it as a test fd=fileno(fp); fstat(fd, &buf); *size = buf.st_size; //get file size (byte) *modify_time = buf.st_mtime; //latest modification time (seconds passed from 01/01/00:00:00 1970 UTC) fclose(fp); fp = NULL; } //根據時間在某個資料夾下建立資料夾,並返回資料夾名稱 char* CreateDirectoryByTime(char *chPath) { return NULL; } //根據檔名稱建立資料夾,返回值為0表示建立成功，返回1表示資料夾已存在，返回-1表示建立失敗位置原因 int createDirectory(const char* strPath) { int nCreate; nCreate=mkdir(strPath, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH); if(!nCreate) cout<<"create success"<< strPath <<endl; else cout<<"create path failed"<<endl; return nCreate; } //建立深度資料夾 int safeCreateDirectory(char* strPath) { //依次獲取路徑中的/或者\並建立資料夾 char *chPath; chPath = (char*)malloc(1024); strcpy(chPath, strPath); char *p = (char*)malloc(1024); while(1) { p = strchr(chPath, '\\'); if(p != NULL) { cout << p << endl; unsigned char tmp = (unsigned char)(strchr(chPath, '\\') - chPath); char* pre = (tmp > 0)?strndup(chPath, tmp):strdup(chPath); createDirectory(pre); chdir(pre); int size = strlen(p); cout << size << endl; if(size == 1) break; cout << size << endl; strcpy(chPath, p + 1); cout << chPath << endl; cout << "------------------------------------" << endl; free(pre); } else { break; //return -1; } } free(p); free(chPath); return 0; } //獲取當前系統時間 int GetCurrentTime() { time_t now; time(&now); return now; } //獲取當前時間具體到小時 int GetCurrentHour(char* strCurrent) { timespec time; clock_gettime(CLOCK_REALTIME, &time); //獲取相對於1970到現在的秒數 tm nowTime; localtime_r(&time.tv_sec, &nowTime); // char current[1024]; // sprintf(current, "%04d%02d%02d%02d:%02d:%02d", nowTime.tm_year + 1900, nowTime.tm_mon, nowTime.tm_mday, nowTime.tm_hour, nowTime.tm_min, nowTime.tm_sec); sprintf(strCurrent, "%04d%02d%02d%02d", nowTime.tm_year + 1900, nowTime.tm_mon, nowTime.tm_mday, nowTime.tm_hour); // cout << strCurrent << endl; return 0; } //遍歷資料夾 void ReverseDirctory(const char* strPath, std::vector<std::string> & arrJsonFilePath) { #if 0 intptr_t handle; _finddata_t findData; handle = _findfirst(dir, &findData); // 查詢目錄中的第一個檔案 if (handle == -1) { cout << "Failed to find first file!\n"; return; } do { if (findData.attrib & _A_SUBDIR && strcmp(findData.name, ".") == 0 && strcmp(findData.name, "..") == 0) // 是否是子目錄並且不為"."或".." cout << findData.name << "\t<dir>\n"; else cout << findData.name << "\t" << findData.size << endl; } while (_findnext(handle, &findData) == 0); // 查詢目錄中的下一個檔案 cout << "Done!\n"; _findclose(handle); // 關閉搜尋控制代碼 #endif } void scanDir(const char *dir,std::vector<std::string>& arrJsonPath, int depth, bool bDirOrFile) { DIR *dp; // 定義子目錄流指標 struct dirent *entry; // 定義dirent結構指標儲存後續目錄 struct stat statbuf; // 定義statbuf結構儲存檔案屬性 if((dp = opendir(dir)) == NULL) // 開啟目錄，獲取子目錄流指標，判斷操作是否成功 { puts("can't open dir."); return; } chdir (dir); // 切換到當前目錄 while((entry = readdir(dp)) != NULL) // 獲取下一級目錄資訊，如果未否則迴圈 { lstat(entry->d_name, &statbuf); // 獲取下一級成員屬性 if(S_IFDIR &statbuf.st_mode) // 判斷下一級成員是否是目錄 { if (strcmp(".", entry->d_name) == 0 || strcmp("..", entry->d_name) == 0) continue; printf("%*s%s/\n", depth, "", entry->d_name); // 輸出目錄名稱 // scanDir(entry->d_name, depth+4); // 遞迴呼叫自身，掃描下一級目錄，但是我們只遍歷當前目錄下的所有json檔案 if(bDirOrFile) arrJsonPath.push_back(entry->d_name); } else { //printf("%*s%s\n", depth, "", entry->d_name); // 輸出屬性不是目錄的成員 if(!bDirOrFile) arrJsonPath.push_back(entry->d_name); } } chdir(".."); // 回到上級目錄 closedir(dp); // 關閉子目錄流 } //整數轉string std::string IntToStr(int num) { char strNum[100]; sprintf(strNum, "%d", num); return string(strNum); } //substring std::string substr(char* str, unsigned int start, unsigned int end) { unsigned n = end - start; char stbuf[256]; strncpy(stbuf, str + start, n); stbuf[n] = 0; return (std::string)stbuf; } /* 函式名稱：SplitWords(char* strSrc, std::vector<std::string> & arrWords); 函式作用:分割字串 */ int SplitWords(char* strSrc, std::vector<std::string> & arrStr, char chStr) { unsigned int index = 0, len = 0, subIndex = 0, strlength = 0; char *tmpSrc = strSrc; while (*tmpSrc != '\0') { strlength++; tmpSrc++; } tmpSrc = strSrc; strlength++; while(strlength--) { index++; subIndex++; if (*tmpSrc == chStr) { if (subIndex == 1) { index = 0; tmpSrc++; continue; } if (index == subIndex) { std::string sr/* = (char*)malloc(index)*/; sr = substr(strSrc, 0, index - 1); arrStr.push_back(sr); index = 0; //free(sr); } else { if (subIndex - index == subIndex - 1) { index = 0; tmpSrc++; continue; } std::string sr/* = (char*)malloc(subIndex - index)*/; sr = substr(strSrc, subIndex - index, subIndex - 1); arrStr.push_back(sr); index = 0; //free(sr); } } else if(index != 0 && subIndex != 0 && *tmpSrc == '\0') { string sr/* = (char*)malloc(subIndex - index)*/; sr = substr(strSrc, subIndex - index, subIndex - 1); if (sr == "") return arrStr.size(); arrStr.push_back(sr); index = 0; //free(sr); return arrStr.size(); } tmpSrc++; } return arrStr.size(); }