Breaking down WinMain's cmdLine in old style main()'s arguments - c++

Question

I want to convert WinMain's cmdLine argument to argc and argv so I can use the argument parsing function I wrote for console applications.
This would be trivial except that I want to support "quotes" too. For example:
test.exe test1 test2 "testing testing"
should be
argv[0] = "test.exe"; argv[1] = "test1"; argv[2] = "test2"; argv[3] = "testing testing";
I realize that cmdLine doesn't have the program name (the argv[0]); this doesn't matter I can use a dummy value.
I was thinking of doing it with a regex, (("[^"]+")\s+)|(([^\s]+)\s*) I'm not sure how well it would work though.. Probably not very well? Is there any function to do that in the windows api? Thanks

Answer 1

If you are using Microsoft compiler, there are public symbols __argc, __argv and __wargv defined in stdlib.h. This also applies to MinGW that uses Microsoft runtime libraries.

Answer 2

Based on Denis K response
See: https://msdn.microsoft.com/library/dn727674.aspx
This adds Windows specific entrypoint to clasic startpoint of your app:
int __stdcall WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, char*, int nShowCmd)
{
return main(__argc, __argv);
}

Answer 3

CommandLineToArgvW looks like it would be helpful here.

Answer 4

If you want plain int argc, char** argv arguments you have to do it on your own.
void fetchCmdArgs(int* argc, char*** argv) {
// init results
*argc = 0;
// prepare extraction
char* winCmd = GetCommandLine();
int index = 0;
bool newOption = true;
// use static so converted command line can be
// accessed from outside this function
static vector<char*> argVector;
// walk over the command line and convert it to argv
while(winCmd[index] != 0){
if (winCmd[index] == ' ') {
// terminate option string
winCmd[index] = 0;
newOption = true;
} else {
if(newOption){
argVector.push_back(&winCmd[index]);
(*argc)++;
}
newOption = false;
}
index++;
}
// elements inside the vector are guaranteed to be continous
*argv = &argVector[0];
}
// usage
int APIENTRY WinMain(...) {
int argc = 0;
char** argv;
fetchCmdArgs(&argc, &argv);
}