I'm using OpenFileName of winapi with the flag of multiselect.
When the user selects multiple files it returns me a string separated by nulls as follows:
"[caminho da pasta]"[caminho da pasta]%pre%[arquivo 1]%pre%[arquivo 2]%pre%[arquivo 3]%pre%%pre%"
[arquivo 1]%pre%[arquivo 2]%pre%[arquivo 3]%pre%%pre%"
How could I turn this string into an array? Is there any c ++ method for this? If not, how can I do to identify "%code%" in for?
A string in C is a sequence of characters terminated by a null terminator. So since you have:
const char* data = "[caminho da pasta]const char* str1 = data;
int len1 = strlen(str1);
[arquivo 1]const char* str2 = str1 + len1 + 1;
int len2 = strlen(str2);
[arquivo 2]int main() {
const char* data = "[caminho da pasta][0] = '[caminho da pasta]'
[1] = '[arquivo 1]'
[2] = '[arquivo 2]'
[3] = '[arquivo 3]'
[arquivo 1]const char* data = "[caminho da pasta]const char* str1 = data;
int len1 = strlen(str1);
[arquivo 1]const char* str2 = str1 + len1 + 1;
int len2 = strlen(str2);
[arquivo 2]int main() {
const char* data = "[caminho da pasta][0] = '[caminho da pasta]'
[1] = '[arquivo 1]'
[2] = '[arquivo 2]'
[3] = '[arquivo 3]'
[arquivo 1]%pre%[arquivo 2]%pre%[arquivo 3]%pre%%pre%";
vector<string> files;
const char* str = data;
int len = strlen(str);
while (len) {
files.push_back(string(str, len));
str = str + len + 1;
len = strlen(str);
}
for (unsigned i = 0; i < files.size(); ++i) {
cout << "[" << i << "] = '" << files[i] << "'" << endl;
}
return 0;
}
[arquivo 3]%pre%%pre%";
[arquivo 2]%pre%[arquivo 3]%pre%%pre%";
vector<string> files;
const char* str = data;
int len = strlen(str);
while (len) {
files.push_back(string(str, len));
str = str + len + 1;
len = strlen(str);
}
for (unsigned i = 0; i < files.size(); ++i) {
cout << "[" << i << "] = '" << files[i] << "'" << endl;
}
return 0;
}
[arquivo 3]%pre%%pre%";
You can calculate the size of the first string using strlen :
The second string will start after the first and after the null terminator, like this:
%pre% And so on. You stop when len returns zero, after all the end is marked by a double null marker.
You can do this in a loop like this:
%pre%Resulting in:
%pre%