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// argcargv.cpp
// based on:
// LIBCTINY - Matt Pietrek 2001
// MSDN Magazine, January 2001
// 08/12/06 (mv)
#include <windows.h>
#include "libct.h"
#define _MAX_CMD_LINE_ARGS 32
TCHAR *_argv[_MAX_CMD_LINE_ARGS+1];
static TCHAR *_rawCmd = 0;
int _init_args()
{
_argv[0] = 0;
TCHAR *sysCmd = GetCommandLine();
int szSysCmd = lstrlen(sysCmd);
// copy the system command line
TCHAR *cmd = (TCHAR*)HeapAlloc(GetProcessHeap(), 0, sizeof(TCHAR)*(szSysCmd+1));
_rawCmd = cmd;
if (!cmd)
return 0;
lstrcpy(cmd, sysCmd);
// Handle a quoted filename
if (*cmd == _T('"'))
{
cmd++;
_argv[0] = cmd; // argv[0] = exe name
while (*cmd && *cmd != _T('"'))
cmd++;
if (*cmd)
*cmd++ = 0;
else
return 0; // no end quote!
}
else
{
_argv[0] = cmd; // argv[0] = exe name
while (*cmd && !_istspace(*cmd))
cmd++;
if (*cmd)
*cmd++ = 0;
}
int argc = 1;
for (;;)
{
while (*cmd && _istspace(*cmd)) // Skip over any whitespace
cmd++;
if (*cmd == 0) // End of command line?
return argc;
if (*cmd == _T('"')) // Argument starting with a quote???
{
cmd++;
_argv[argc++] = cmd;
_argv[argc] = 0;
while (*cmd && *cmd != _T('"'))
cmd++;
if (*cmd == 0)
return argc;
if (*cmd)
*cmd++ = 0;
}
else
{
_argv[argc++] = cmd;
_argv[argc] = 0;
while (*cmd && !_istspace(*cmd))
cmd++;
if (*cmd == 0)
return argc;
if (*cmd)
*cmd++ = 0;
}
if (argc >= _MAX_CMD_LINE_ARGS)
return argc;
}
}
void _term_args()
{
if (_rawCmd)
HeapFree(GetProcessHeap(), 0, _rawCmd);
}
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Mike_V is currently a student at UCLA.
After a few years on the Dark Side, he reformed and now chants "Death to VB." His computer-related interests include C++, C#, and ASP.NET (in C#, of course). He writes operating systems in C++ and assembler as a hobby.