add some scanf support

Console.h

@@ -7,6 +7,24 @@
 
 namespace Helium
 {
+	// Scan from STDOUT
+	HELIUM_PLATFORM_API int Scan(const char* fmt, ...);
+	HELIUM_PLATFORM_API int Scan(const wchar_t* fmt, ...);
+	HELIUM_PLATFORM_API int ScanArgs(const char* fmt, va_list args);
+	HELIUM_PLATFORM_API int ScanArgs(const wchar_t* fmt, va_list args);
+
+	// Scan from C file handle
+	HELIUM_PLATFORM_API int FileScan(FILE* f, const char* fmt, ...);
+	HELIUM_PLATFORM_API int FileScan(FILE* f, const wchar_t* fmt, ...);
+	HELIUM_PLATFORM_API int FileScanArgs(FILE* f, const char* fmt, va_list args);
+	HELIUM_PLATFORM_API int FileScanArgs(FILE* f, const wchar_t* fmt, va_list args);
+
+	// Scan from string
+	HELIUM_PLATFORM_API int StringScan(const char* str, const char* fmt, ...);
+	HELIUM_PLATFORM_API int StringScan(const wchar_t* str, const wchar_t* fmt, ...);
+	HELIUM_PLATFORM_API int StringScanArgs(const char* str, const char* fmt, va_list args);
+	HELIUM_PLATFORM_API int StringScanArgs(const wchar_t* str, const wchar_t* fmt, va_list args);
+
 	// Print to STDOUT
 	HELIUM_PLATFORM_API int Print(const char* fmt, ...);
 	HELIUM_PLATFORM_API int Print(const wchar_t* fmt, ...);

ConsoleWin.cpp

@@ -3,6 +3,10 @@
 
 #include "Platform/Assert.h"
 
+#undef _UNICODE
+#include "Platform/ConsoleWin.vsscanf.impl"
+#define _UNICODE 1
+
 #include <stdlib.h>
 
 using namespace Helium;
@@ -41,6 +45,94 @@ static inline int LookupColor( ConsoleColor color )
 
 #pragma TODO("These char overloads are really ASCII, not UTF-8.  Track down some UTF-8 implementations.  -Geoff")
 
+int Helium::Scan(const char* fmt, ...)
+{
+	char buf[1024];
+	fgets( buf, sizeof( buf ), stdin );
+
+	va_list args;
+	va_start(args, fmt);
+	int result = vsscanf( buf, (const unsigned char*)fmt, args );
+	va_end(args);
+	return result;
+}
+
+int Helium::Scan(const wchar_t* fmt, ...)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
+int Helium::ScanArgs(const char* fmt, va_list args)
+{
+	char buf[1024];
+	fgets( buf, sizeof( buf ), stdin );
+	return vsscanf( buf, (const unsigned char*)fmt, args );
+}
+
+int Helium::ScanArgs(const wchar_t* fmt, va_list args)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
+int Helium::FileScan(FILE* f, const char* fmt, ...)
+{
+	char buf[1024];
+	fgets( buf, sizeof( buf ), f );
+
+	va_list args;
+	va_start(args, fmt);
+	int result = vsscanf( buf, (const unsigned char*)fmt, args );
+	va_end(args);
+	return result;
+}
+
+int Helium::FileScan(FILE* f, const wchar_t* fmt, ...)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
+int Helium::FileScanArgs(FILE* f, const char* fmt, va_list args)
+{
+	char buf[1024];
+	fgets( buf, sizeof( buf ), f );
+	return vsscanf( buf, (const unsigned char*)fmt, args );
+}
+
+int Helium::FileScanArgs(FILE* f, const wchar_t* fmt, va_list args)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
+int Helium::StringScan(const char* str, const char* fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	int result = vsscanf(str, (const unsigned char*)fmt, args);
+	va_end(args);
+	return result;
+}
+
+int Helium::StringScan(const wchar_t* str, const wchar_t* fmt, ...)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
+int Helium::StringScanArgs(const char* str, const char* fmt, va_list args)
+{
+	return vsscanf(str, (const unsigned char*)fmt, args);
+}
+
+int Helium::StringScanArgs(const wchar_t* str, const wchar_t* fmt, va_list args)
+{
+	HELIUM_ASSERT( false );
+	return 0;
+}
+
 int Helium::Print(const char* fmt, ...)
 {
 	va_list args;