CommandLineToArgvA.cpp

#define GLOBALALLOC(S) reinterpret_cast(GlobalAlloc(GPTR,(S)))
#define GLOBALFREE(X) {if(X){GlobalFree(reinterpret_cast(X));(X)=NULL;}}

#define HEAPALLOC(S) HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,(S))
#define HEAPFREE(X) {if(X){HeapFree(GetProcessHeap(),0,reinterpret_cast(X));(X)=NULL;}}

PSTR *CommandLineToArgvA(LPCSTR lpCmdLine,int *pNumArgs)
{
  PSTR *pArgvA = NULL;
  int Argc = 0;

  PWSTR *pArgvW = NULL;
  PWSTR pM2WBuffer = NULL;
  int *pcchLen = NULL;
  int cchBufferLength = 0;

  *pNumArgs = 0;

  if((cchBufferLength = MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,lpCmdLine,-1,NULL,0))
     goto cleanup;

  if((pM2WBuffer = (PWSTR)HEAPALLOC((cchBufferLength+1)*sizeof(WCHAR))) == NULL)
    goto cleanup;

  MultiByteToWideChar(CP_ACP,MB_PRECOMPOSED,lpCmdLine,-1,pM2WBuffer,cchBufferLength+1);
  pArgvW = CommandLineToArgvW(pM2WBuffer,&Argc);

  //コマンドラインをマルチバイトに変換した後の
  //文字数(配列pcchLen)、文字数合計(cchBufferLength)を求める
  if((pcchLen = (int*)HEAPALLOC(sizeof(int)*Argc)) == NULL)
    goto cleanup;

  cchBufferLength = 0;
  for(int i=0;i<Argc;i++) {
      pcchLen[i] = WideCharToMultiByte(CP_ACP,0,pArgvW[i],-1,NULL,0,NULL,NULL);
      cchBufferLength += ++pcchLen[i];
    }

  //コマンドライン文字列の配列を取得して格納する。
  if((pArgvA = (PSTR*)GLOBALALLOC(cchBufferLength + sizeof(PSTR)*Argc)) == NULL)
    goto cleanup;

  for(int i=0;i<Argc;i++) {
      pArgvA[i] = (i < 1) ? (PSTR)pArgvA + sizeof(PSTR)*Argc : pArgvA[i-1] + pcchLen[i-1];
      WideCharToMultiByte(CP_ACP,0,pArgvW[i],-1,pArgvA[i],pcchLen[i],NULL,NULL);
    }

cleanup:
  HEAPFREE(pcchLen);
  HEAPFREE(pM2WBuffer);
  GLOBALFREE(pArgvW);  // 解放処理を忘れていたので追加しました。(2010/7/4)
  *pNumArgs = Argc;
  return pArgvA;
}

Hi, can you fix your code so i can read and learning this code? I confuse in part "for(int i=0;i {" also can you write code that easly to be read? like if(condition){//block to be executed}. please use "{" or "}". thank you

oh, sorry! i failed to copy & paste from my file to gist's text editor.
i fixed them.
thanks for your comment