我正在使用该程序从导出的注册表文件中提取某些信息。我是使用 Visual Studio 的新手，它在 2012 年编译并运行良好，但在我意识到我需要 2010 年才能在 Windows XP 上运行应用程序之前我做到了。当我在 2010 年运行代码时，它给了我一个运行时错误，说“字符串下标超出范围”。任何有关此错误的方向将不胜感激。
// SoftwareList.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include <stdio.h>
#include <fstream>
#include <iostream>
#include <string>
using namespace std;
class Node
{
public:
string name;
string publisher;
string version;
string installDate;
int position;
};
void quickSort(Node arr[], int left, int right)
{
int i = left, j = right;
Node temp;
Node pivot = arr[(left + right) / 2];
/* partition */
while (i <= j) {
while (arr[i].name < pivot.name)
i++;
while (arr[j].name > pivot.name)
j--;
if (i <= j) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
i++;
j--;
}
}
/* recursion */
if (left < j)
quickSort(arr, left, j);
if (i < right)
quickSort(arr, i, right);
}
int _tmain(int argc, _TCHAR* argv[])
{
string line;
string field;
string filter;
int index = 0;
int arraySize = 10000;
Node *programs;
programs = new Node[arraySize];
//Export the needed registry keys
printf("Exporting Registry List\n");
system("reg export HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall reg_out_unicode.txt");
system("cmd /a /c type reg_out_unicode.txt>reg_out_ansi.txt");
system("del reg_out_unicode.txt");
//Clean up the registry keys to only show the info needed
ifstream infile;
ofstream outfile;
infile.open("reg_out_ansi.txt");
outfile.open("SoftwareList.txt");
Node currentProgram;
//Initialize the new Node
currentProgram.name = "";
currentProgram.publisher = "";
currentProgram.version = "";
while (getline(infile,line))
{
if (line[0] == '[' )
{
//Add the last filled node
if (!currentProgram.name.empty())
{
currentProgram.position = index;
programs[index] = currentProgram;
index++;
}
//Initialize the empty Node
currentProgram.name = "";
currentProgram.publisher = "";
currentProgram.version = "";
}
//Find the first " and pull the string from after that
//const char *temp = line.c_str();
char *temp = new char[line.size() + 1];
strcpy(temp,line.c_str());
if (*temp == '"')
{
*temp++;
while (*temp != '"') //Stops at the next "
{
field.push_back(*temp++); //Add what is in between the "" into the field string for checking
}
}
if (strcmp(field.c_str(),"DisplayName") == 0) // Grab the DisplayName of a program
{
field.push_back(*temp++);
field.push_back(*temp++);
field.clear();
while (1)
{
if (*temp == '"')
{
*temp++;
while (*temp != '"') //Stops at the next "
{
field.push_back(*temp); //Add what is in between the "" into the field string for checking
*temp++;
}
break;
} else {
*temp++;
}
}
currentProgram.name = field;
}
if (strcmp(field.c_str(),"DisplayVersion") == 0) // Grab the DisplayVersion of a program
{
field.push_back(*temp++);
field.push_back(*temp++);
field.clear();
while (1)
{
if (*temp == '"')
{
*temp++;
while (*temp != '"') //Stops at the next "
{
field.push_back(*temp); //Add what is in between the "" into the field string for checking
*temp++;
}
break;
} else {
*temp++;
}
}
currentProgram.version = field;
}
if (strcmp(field.c_str(),"Publisher") == 0) // Grab the Publisher of a program
{
field.push_back(*temp++);
field.push_back(*temp++);
field.clear();
while (1)
{
if (*temp == '"')
{
*temp++;
while (*temp != '"') //Stops at the next "
{
field.push_back(*temp); //Add what is in between the "" into the field string for checking
*temp++;
}
break;
} else {
*temp++;
}
}
currentProgram.publisher = field;
}
if (strcmp(field.c_str(),"InstallDate") == 0) // Grab the Publisher of a program
{
field.push_back(*temp++);
field.push_back(*temp++);
field.clear();
while (1)
{
if (*temp == '"')
{
*temp++;
while (*temp != '"') //Stops at the next "
{
field.push_back(*temp); //Add what is in between the "" into the field string for checking
*temp++;
}
break;
} else {
*temp++;
}
}
currentProgram.installDate = field;
}
field.clear();
}
cout << "Registry Successfully Parsed" << endl;
//Sort the output
quickSort(programs,0,arraySize - 1);
cout << "Sorting Successful" << endl;
cout << '\n' << "Choose Output Filtering Method" << endl;
cout << "-------------------------" << endl;
cout << " " << "[1] All Software" << endl;
cout << " " << "[2] All But Microsoft" << endl;
cout << " " << "[3] Filter By Software Title" << endl;
cout << " " << "[4] Filter By Software Publisher" << endl;
cout << " " << "[5] Filter By Install Date" << endl;
cout << "Enter Choice: ";
//Write File Header
outfile << "Title" << '\t' << "Version" << '\t' << "Publisher" << '\t' << "Install Date" << endl;
while (1)
{
cin >> filter;
if (!strcmp(filter.c_str(),"1"))
{
//Print all elements to outfile
cout << "Writing Output File" << endl;
for (int i = 0; i < arraySize; i++)
{
if (strcmp(programs[i].name.c_str(),"") != 0)
{
outfile << programs[i].name.c_str() << '\t' << programs[i].version.c_str() << '\t' << programs[i].publisher.c_str() << '\t' << programs[i].installDate.c_str() << endl;
}
}
break;
} else if (!strcmp(filter.c_str(),"2")) {
//Print selected elements to outfile
cout << "Writing Output File" << endl;
for (int i = 0; i < arraySize; i++)
{
if (strcmp(programs[i].name.c_str(),"") != 0)
{
if (programs[i].publisher.find("Microsoft") == string::npos)
{
if (programs[i].name.find("Microsoft") == string::npos)
{
outfile << programs[i].name.c_str() << '\t' << programs[i].version.c_str() << '\t' << programs[i].publisher.c_str() << '\t' << programs[i].installDate.c_str() << endl;
}
}
}
}
break;
}else if (!strcmp(filter.c_str(),"3")) {
string title;
cout << '\n' << "Enter Title (Case Sensitive): ";
cin >> title;
cout << endl;
//Print selected elements to outfile
cout << "Writing Output File" << endl;
for (int i = 0; i < arraySize; i++)
{
if (strcmp(programs[i].name.c_str(),"") != 0)
{
if (programs[i].name.find(title) != string::npos)
{
outfile << programs[i].name.c_str() << '\t' << programs[i].version.c_str() << '\t' << programs[i].publisher.c_str() << '\t' << programs[i].installDate.c_str() << endl;
}
}
}
break;
} else if (!strcmp(filter.c_str(),"4")) {
string publisher;
cout << '\n' << "Enter Publisher (Case Sensitive): ";
cin >> publisher;
cout << endl;
//Print selected elements to outfile
cout << "Writing Output File" << endl;
for (int i = 0; i < arraySize; i++)
{
if (strcmp(programs[i].name.c_str(),"") != 0)
{
if (programs[i].publisher.find(publisher) != string::npos)
{
outfile << programs[i].name.c_str() << '\t' << programs[i].version.c_str() << '\t' << programs[i].publisher.c_str() << '\t' << programs[i].installDate.c_str() << endl;
}
}
}
break;
} else if (!strcmp(filter.c_str(),"5")) {
string date;
cout << '\n' << "Enter Date (YYYYMMDD): ";
cin >> date;
cout << endl;
//Print selected elements to outfile
cout << "Writing Output File" << endl;
for (int i = 0; i < arraySize; i++)
{
if (strcmp(programs[i].name.c_str(),"") != 0)
{
if (programs[i].installDate.find(date) != string::npos)
{
outfile << programs[i].name.c_str() << '\t' << programs[i].version.c_str() << '\t' << programs[i].publisher.c_str() << '\t' << programs[i].installDate.c_str() << endl;
}
}
}
break;
} else {
cout << "Invalid Input... Try Again" << endl;
}
}
//Close and clean up files
infile.close();
outfile.close();
system("del reg_out_ansi.txt");
return 0;
}