vc++编写文件搜索类
一个文件搜索类，可以递归查找和模糊匹配的，花了点时间写了下，用一个链表保存文件信息。最后用releasefile释放这个链表。#include <iostream>
#include "windows.h"
using namespace std;
class file{
public:
file(char *,int);
~file();
void getfilename(char*);
void getdir(char*);
void getfullname(char*);
void getext(char*);
void getname(char*);
int gettype();
file *next;
int getlength();
private:
char *fullname;
int type;
};
class filesearch{
public:
file* search(char *,char *,int,int);
file* subfolders(char *);
file* subfiles(char *);
file*subff(char *);
void releasefile(file*);
};
file::file(char *path,int t){
fullname=new char;
strcpy(fullname,path);
type=t;
}
file::~file(){
delete[] fullname;
}
void file::getfilename(char* name){
int i=strlen(fullname)-1;
while(i>=0){
if(fullname=='\\' || fullname=='/'){
strcpy(name,fullname+i+1);
return;
}
i--;
}
strcpy(name,"");
}
void file::getdir(char* dir){
char *s=new char;
getfilename(s);
int c=strlen(fullname)-strlen(s)-1;
strncpy(dir,fullname,c);
dir=0;
delete[] s;
}
void file::getfullname(char* name){
strcpy(name,fullname);
}
void file::getext(char* ext){
char *s=new char;
getfilename(s);
int i=strlen(s)-1;
while(i>=0){
if(s=='.'){
strcpy(ext,s+i+1);
return;
}
i--;
}
strcpy(ext,"");
delete[] s;
}
void file::getname(char* name){
int i=strlen(fullname)-1;
while(i>=0){
if(fullname=='\\' || fullname=='/'){
i++;
int i1=0;
while(fullname){
if(fullname=='.'){
name=0;
return;
}else{
name=fullname;
}
i++;
}
name=0;
return;
}
i--;
}
strcpy(name,"");
}
int file::gettype(){
return type;
}
int file::getlength(){
return strlen(fullname);
}
file* filesearch::subff(char *path){
WIN32_FIND_DATA data;
char tpath;
strcpy(tpath,path);
strcat(tpath,"\\*");
HANDLE h=FindFirstFile(tpath,&data);
FindNextFile(h,&data);
file *ff=0;
file *head=0;
while(FindNextFile(h,&data)){
char name;
strcpy(name,path);
strcat(name,"\\");
strcat(name,data.cFileName);
file* ff1=new file(name,data.dwFileAttributes);
ff1->next=0;
if(ff!=0){
ff->next=ff1;
ff=ff1;
}else{
ff=ff1;
head=ff;
}
if(data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY){
file* ff2=subff(name);
if(ff2){
ff1->next=ff2;
while(ff2->next!=0){
ff2=ff2->next;
}
ff=ff2;
}
}
}
FindClose(h);
return head;
}
void filesearch::releasefile(file* f){
while(f){
file *f1=f;
f=f->next;
delete f1;
}
}
file *filesearch::search(char *dir,char *name,int r,int reg){
file *f=subff(dir);
file *f1=0;
file *head=0;
if(f){
if(r){
if(reg){
while(f){
char a;
f->getfilename(a);
if(strstr(a,name)){
char fullname;
f->getfullname(fullname);
file *ff2=new file(fullname,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
}else{
while(f){
char a;
f->getfilename(a);
if(stricmp(a,name)==0){
char fullname;
f->getfullname(fullname);
file *ff2=new file(fullname,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
}
}else{
if(reg){
while(f){
char a,d;
f->getfilename(a);
f->getdir(d);
if(strstr(a,name) && stricmp(d,dir)==0){
char fullname;
f->getfullname(fullname);
file *ff2=new file(fullname,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
}else{
while(f){
char a,d;
f->getfilename(a);
f->getdir(d);
if(stricmp(a,name)==0 && stricmp(d,dir)==0){
char fullname;
f->getfullname(fullname);
file *ff2=new file(fullname,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
}
}
releasefile(f);
}
return head;
}
file* filesearch::subfiles(char *dir){
file *f=subff(dir);
file *head=0;
file *f1=0;
while(f){
char name,d;
f->getfullname(name);
f->getdir(d);
if(stricmp(dir,d)==0 && !(f->gettype() & FILE_ATTRIBUTE_DIRECTORY)){
file *ff2=new file(name,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
releasefile(f);
return head;
}
file* filesearch::subfolders(char *dir){
file *f=subff(dir);
file *head=0;
file *f1=0;
while(f){
char name,d;
f->getfullname(name);
f->getdir(d);
if(stricmp(dir,d)==0 && (f->gettype() & FILE_ATTRIBUTE_DIRECTORY)){
file *ff2=new file(name,f->gettype());
ff2->next=0;
if(f1){
f1->next=ff2;
f1=ff2;
}else{
f1=ff2;
head=f1;
}
}
f=f->next;
}
releasefile(f);
return head;
}
给个实例：
main(){
filesearch f;
file* ff=f.subfolders("d:\\test");
file* head=ff;
while(ff){
char a;
ff->getfullname(a);
cout<<a<<endl;
ff=ff->next;
}
f.releasefile(head);
}
本帖来自：http://blog.csdn.net/sx1989827/archive/2010/08/25/5837119.aspx c语言的代码就是长 嘿嘿
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