Cout all remaining tokens in string?
Apr 22, 2013 at 5:58pm UTC
I've got a for loop to print each remaining token from the input string, however the program crashes when I do place a "print" function in the code. Help please?
1#include <iostream>
#include <string>
#include <windows.h>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
void SetColor(unsigned short color) {
HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hcon, color);
}
BOOL WINAPI SetConsoleIcon(HICON hIcon) {
typedef BOOL (WINAPI *PSetConsoleIcon)(HICON);
static PSetConsoleIcon pSetConsoleIcon = NULL;
if (pSetConsoleIcon == NULL)
pSetConsoleIcon = (PSetConsoleIcon)GetProcAddress(GetModuleHandle(("kernel32" )), "SetConsoleIcon" );
if (pSetConsoleIcon == NULL)
return FALSE;
return pSetConsoleIcon(hIcon);
}
int main(int argc, char * argv[])
{
SetConsoleTitle("OpenCMD v1.0.0" );
HICON hIcon = LoadIcon(GetModuleHandle(0),"MAINICON" );
SetConsoleIcon(hIcon);
if (argc<2) {
cerr << "OpenCMD v1.0.0\n(C) Copyright 2013 HackForums" ;
getchar();
return (0);
} else {
string line;
string cmd;
string params;
string token;
string tokens[5];
unsigned int a; // first for loop var.
unsigned int b = 0; //
unsigned int c = 0; // Spaces in the string to parse
unsigned int d = 0; // Number of tokens in string array
unsigned int e = 0; // Extra interger to use with parsing commands from file (Ex. echo ...)
ifstream file;
file.open(argv[1]); // Args start a 0, then go up by 1. argv[0] is the Program path.
if (!file.is_open()) {
file.close();
cout << "Error opening file." ;
} else {
while (!file.eof()) { // While the file isn't ended
b = 0;
c = 0;
d = 0;
getline(file, line); // get the command's whole line
if (!line.empty()) { // If the line isn't empty...
for (a = 0; a < line.length(); a++) { // Tranform string to lowercase
tolower(line.at(a));
}
while (isspace(line.at(b))) {
b++;
for (; b < line.length(); b++) {
if (isspace(line.at(b))) {
c++;
// Skip over duplicate spaces & if a NULL character is found, we're at the end of the string
while (isspace(line.at(b++))) {
if (line.at(b) == '\0' ) {
c--;
}
}
}
}
}
c++;
string tokens[c]; // initialize the number of tokens to number of spaces + 1
stringstream ss(line);
while (getline(ss, token, ' ' )) { // add tokens to array
tokens[d] = token;
d++;
}
if (tokens[0] == "color" ) { // check first token (0)
if (tokens[1] == "-green" ) { // check second token (1)
SetColor(10); // do command for the tokenized string read
}
} else if (tokens[0] == "pause" ) {
getchar();
} else if (tokens[0] == "print" ) {
for (e = sizeof (tokens) / sizeof (tokens[0]); e > 1; e--) {
cout << tokens[e];
}
} else {
cout << "OpenCMD has read an unknown command: " << tokens[0];
getchar();
}
}
}
file.close(); // Close File
}
}
return (0);
}
Apr 22, 2013 at 6:07pm UTC
EDIT: Instead of using a for loop, I'm using a while loop (the code in the OP is old.) The while loop somehow cannot support these commands:
1color -green
print hello world. I am master!
pause
Here's the updated code:
1#include <iostream>
#include <string>
#include <windows.h>
#include <fstream>
#include <vector>
#include <sstream>
using namespace std;
void SetColor(unsigned short color) {
HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hcon, color);
}
BOOL WINAPI SetConsoleIcon(HICON hIcon) {
typedef BOOL (WINAPI *PSetConsoleIcon)(HICON);
static PSetConsoleIcon pSetConsoleIcon = NULL;
if (pSetConsoleIcon == NULL)
pSetConsoleIcon = (PSetConsoleIcon)GetProcAddress(GetModuleHandle(("kernel32" )), "SetConsoleIcon" );
if (pSetConsoleIcon == NULL)
return FALSE;
return pSetConsoleIcon(hIcon);
}
int main(int argc, char * argv[])
{
SetConsoleTitle("OpenCMD v1.0.0" );
HICON hIcon = LoadIcon(GetModuleHandle(0),"MAINICON" );
SetConsoleIcon(hIcon);
if (argc<2) {
cerr << "OpenCMD v1.0.0\n(C) Copyright 2013 HackForums" ;
getchar();
return (0);
} else {
string line;
string cmd;
string params;
string token;
string tokens[5];
unsigned int a; // first for loop var.
unsigned int b = 0; //
unsigned int c = 0; // Spaces in the string to parse
unsigned int d = 0; // Number of tokens in string array
unsigned int e = 0; // Extra interger to use with parsing commands from file (Ex. print ...)
ifstream file;
file.open(argv[1]); // Args start a 0, then go up by 1. argv[0] is the Program path.
if (!file.is_open()) {
file.close();
cout << "Error opening file." ;
} else {
while (!file.eof()) { // While the file isn't ended
b = 0;
c = 0;
d = 0;
getline(file, line); // get the command's whole line
if (!line.empty()) { // If the line isn't empty...
for (a = 0; a < line.length(); a++) { // Tranform string to lowercase
tolower(line.at(a));
}
while (isspace(line.at(b))) {
b++;
for (; b < line.length(); b++) {
if (isspace(line.at(b))) {
c++;
// Skip over duplicate spaces & if a NULL character is found, we're at the end of the string
while (isspace(line.at(b++))) {
if (line.at(b) == '\0' ) {
c--;
}
}
}
}
}
c++;
string tokens[c]; // initialize the number of tokens to number of spaces + 1
stringstream ss(line);
while (getline(ss, token, ' ' )) { // add tokens to array
tokens[d] = token;
d++;
}
if (tokens[0] == "color" ) { // check first token (0)
if (tokens[1] == "-green" ) { // check second token (1)
SetColor(10); // do command for the tokenized string read
}
} else if (tokens[0] == "pause" ) {
getchar();
} else if (tokens[0] == "print" ) {
e = sizeof (tokens) / sizeof (tokens[0]);
while (e >= 1) {
cout << tokens[e];
e--;
}
} else {
cout << "OpenCMD has read an unknown command: " << tokens[0];
getchar();
}
}
}
file.close(); // Close File
}
}
return (0);
}
Apr 22, 2013 at 10:33pm UTC
Is having a variable number of elements in a string array legal?
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