PathCreateFromUrlW

[Matthew Mastracci]

Here's an implementation of PathCreateFromUrlW that helps Kazaa crash
later rather than sooner.  :)

Can someone review this and check it in (if it doesn't require any
fixes)?

Index: path.c
===================================================================
RCS file: /home/wine/wine/dlls/shlwapi/path.c,v
retrieving revision 1.27
diff -r1.27 path.c
3157c3157,3159
<   FIXME("(%s,%p,%p,0x%08lx)-stub\n", debugstr_w(lpszUrl), lpszPath,
pcchPath, dwFlags);
---
> static const WCHAR stemp[] = { 'f','i','l','e',':','/','/',0 };
>   LPWSTR pwszPathPart;
>   TRACE("(%s,%p,%p,0x%08lx)\n", debugstr_w(lpszUrl), lpszPath,

pcchPath, dwFlags);
3162c3164,3189
<   return S_OK;
---
> // Path of the form file://...
>   if (!strncmpW(lpszUrl, stemp, 7))
>   {
>     lpszUrl += 7;
>   }
>   // Path of the form file:...
>   else if (!strncmpW(lpszUrl, stemp, 5))
>   {
>     lpszUrl += 5;
>   }
>
> // Ensure that path is of the form c:... or c|...
>   if (lpszUrl[1] != ':' && lpszUrl[1] != '|' && isalphaW(*lpszUrl))
>     return E_INVALIDARG;
>
> HRESULT hr = UrlUnescapeW(lpszUrl, lpszPath, pcchPath, dwFlags);
>   if (lpszPath[1] == '|')
>     lpszPath[1] = ':';
>
> for (pwszPathPart = lpszPath; *pwszPathPart; pwszPathPart++)
>     if (*pwszPathPart == '/')
>       *pwszPathPart = '\';
>
> TRACE("Returning %s\n",debugstr_w(lpszPath));
>
> return hr;