wine/dlls/shell32/shellstring.c

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/*
* Copyright 2000 Juergen Schmied
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <ctype.h>
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#include <stdlib.h>
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
#include "windef.h"
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#include "winbase.h"
#include "winnls.h"
#include "winerror.h"
#include "wingdi.h"
#include "winuser.h"
#include "winreg.h"
#include "shlobj.h"
#include "shellapi.h"
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#include "shlwapi.h"
#include "shell32_main.h"
#include "undocshell.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
/************************* STRRET functions ****************************/
BOOL WINAPI StrRetToStrNA(LPSTR dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
TRACE("dest=%p len=0x%x strret=%p(%s) pidl=%p\n",
dest,len,src,
(src->uType == STRRET_WSTR) ? "STRRET_WSTR" :
(src->uType == STRRET_CSTR) ? "STRRET_CSTR" :
(src->uType == STRRET_OFFSET) ? "STRRET_OFFSET" : "STRRET_???",
pidl);
if (!dest)
return FALSE;
switch (src->uType)
{
case STRRET_WSTR:
WideCharToMultiByte(CP_ACP, 0, src->u.pOleStr, -1, dest, len, NULL, NULL);
CoTaskMemFree(src->u.pOleStr);
break;
case STRRET_CSTR:
lstrcpynA(dest, src->u.cStr, len);
break;
case STRRET_OFFSET:
lstrcpynA(dest, ((LPCSTR)&pidl->mkid)+src->u.uOffset, len);
break;
default:
FIXME("unknown type!\n");
if (len) *dest = '\0';
return FALSE;
}
TRACE("-- %s\n", debugstr_a(dest) );
return TRUE;
}
/************************************************************************/
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BOOL WINAPI StrRetToStrNW(LPWSTR dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
TRACE("dest=%p len=0x%x strret=%p(%s) pidl=%p\n",
dest,len,src,
(src->uType == STRRET_WSTR) ? "STRRET_WSTR" :
(src->uType == STRRET_CSTR) ? "STRRET_CSTR" :
(src->uType == STRRET_OFFSET) ? "STRRET_OFFSET" : "STRRET_???",
pidl);
if (!dest)
return FALSE;
switch (src->uType)
{
case STRRET_WSTR:
lstrcpynW(dest, src->u.pOleStr, len);
CoTaskMemFree(src->u.pOleStr);
break;
case STRRET_CSTR:
if (!MultiByteToWideChar( CP_ACP, 0, src->u.cStr, -1, dest, len ) && len)
dest[len-1] = 0;
break;
case STRRET_OFFSET:
if (!MultiByteToWideChar( CP_ACP, 0, ((LPCSTR)&pidl->mkid)+src->u.uOffset, -1, dest, len ) && len)
dest[len-1] = 0;
break;
default:
FIXME("unknown type!\n");
if (len) *dest = '\0';
return FALSE;
}
return TRUE;
}
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/*************************************************************************
* StrRetToStrN [SHELL32.96]
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*
* converts a STRRET to a normal string
*
* NOTES
* the pidl is for STRRET OFFSET
*/
BOOL WINAPI StrRetToStrNAW(LPVOID dest, DWORD len, LPSTRRET src, const ITEMIDLIST *pidl)
{
if(SHELL_OsIsUnicode())
return StrRetToStrNW(dest, len, src, pidl);
else
return StrRetToStrNA(dest, len, src, pidl);
}
/************************* OLESTR functions ****************************/
/************************************************************************
* StrToOleStr [SHELL32.163]
*
*/
int WINAPI StrToOleStrA (LPWSTR lpWideCharStr, LPCSTR lpMultiByteString)
{
TRACE("(%p, %p %s)\n",
lpWideCharStr, lpMultiByteString, debugstr_a(lpMultiByteString));
return MultiByteToWideChar(0, 0, lpMultiByteString, -1, lpWideCharStr, MAX_PATH);
}
int WINAPI StrToOleStrW (LPWSTR lpWideCharStr, LPCWSTR lpWString)
{
TRACE("(%p, %p %s)\n",
lpWideCharStr, lpWString, debugstr_w(lpWString));
strcpyW (lpWideCharStr, lpWString );
return strlenW(lpWideCharStr);
}
BOOL WINAPI StrToOleStrAW (LPWSTR lpWideCharStr, LPCVOID lpString)
{
if (SHELL_OsIsUnicode())
return StrToOleStrW (lpWideCharStr, lpString);
return StrToOleStrA (lpWideCharStr, lpString);
}
/*************************************************************************
* StrToOleStrN [SHELL32.79]
* lpMulti, nMulti, nWide [IN]
* lpWide [OUT]
*/
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BOOL WINAPI StrToOleStrNA (LPWSTR lpWide, INT nWide, LPCSTR lpStrA, INT nStr)
{
TRACE("(%p, %x, %s, %x)\n", lpWide, nWide, debugstr_an(lpStrA,nStr), nStr);
return MultiByteToWideChar (0, 0, lpStrA, nStr, lpWide, nWide);
}
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BOOL WINAPI StrToOleStrNW (LPWSTR lpWide, INT nWide, LPCWSTR lpStrW, INT nStr)
{
TRACE("(%p, %x, %s, %x)\n", lpWide, nWide, debugstr_wn(lpStrW, nStr), nStr);
if (lstrcpynW (lpWide, lpStrW, nWide))
{ return lstrlenW (lpWide);
}
return 0;
}
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BOOL WINAPI StrToOleStrNAW (LPWSTR lpWide, INT nWide, LPCVOID lpStr, INT nStr)
{
if (SHELL_OsIsUnicode())
return StrToOleStrNW (lpWide, nWide, lpStr, nStr);
return StrToOleStrNA (lpWide, nWide, lpStr, nStr);
}
/*************************************************************************
* OleStrToStrN [SHELL32.78]
*/
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BOOL WINAPI OleStrToStrNA (LPSTR lpStr, INT nStr, LPCWSTR lpOle, INT nOle)
{
TRACE("(%p, %x, %s, %x)\n", lpStr, nStr, debugstr_wn(lpOle,nOle), nOle);
return WideCharToMultiByte (0, 0, lpOle, nOle, lpStr, nStr, NULL, NULL);
}
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BOOL WINAPI OleStrToStrNW (LPWSTR lpwStr, INT nwStr, LPCWSTR lpOle, INT nOle)
{
TRACE("(%p, %x, %s, %x)\n", lpwStr, nwStr, debugstr_wn(lpOle,nOle), nOle);
if (lstrcpynW ( lpwStr, lpOle, nwStr))
{ return lstrlenW (lpwStr);
}
return 0;
}
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BOOL WINAPI OleStrToStrNAW (LPVOID lpOut, INT nOut, LPCVOID lpIn, INT nIn)
{
if (SHELL_OsIsUnicode())
return OleStrToStrNW (lpOut, nOut, lpIn, nIn);
return OleStrToStrNA (lpOut, nOut, lpIn, nIn);
}
/*************************************************************************
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* CheckEscapesA [SHELL32.@]
*
* Checks a string for special characters which are not allowed in a path
* and encloses it in quotes if that is the case.
*
* PARAMS
* string [I/O] string to check and on return eventually quoted
* len [I] length of string
*
* RETURNS
* length of actual string
*
* NOTES
* Not really sure if this function returns actually a value at all.
*/
DWORD WINAPI CheckEscapesA(
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LPSTR string, /* [I/O] string to check ??*/
DWORD len) /* [I] is 0 */
{
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LPWSTR wString;
DWORD ret = 0;
TRACE("(%s %d)\n", debugstr_a(string), len);
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wString = (LPWSTR)LocalAlloc(LPTR, len * sizeof(WCHAR));
if (wString)
{
MultiByteToWideChar(CP_ACP, 0, string, len, wString, len);
ret = CheckEscapesW(wString, len);
WideCharToMultiByte(CP_ACP, 0, wString, len, string, len, NULL, NULL);
LocalFree(wString);
}
return ret;
}
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static const WCHAR strEscapedChars[] = {' ','"',',',';','^',0};
/*************************************************************************
* CheckEscapesW [SHELL32.@]
*
* See CheckEscapesA.
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*/
DWORD WINAPI CheckEscapesW(
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LPWSTR string,
DWORD len)
{
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DWORD size = lstrlenW(string);
LPWSTR s, d;
TRACE("(%s %d) stub\n", debugstr_w(string), len);
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if (StrPBrkW(string, strEscapedChars) && size + 2 <= len)
{
s = &string[size - 1];
d = &string[size + 2];
*d-- = 0;
*d-- = '"';
for (;d > string;)
*d-- = *s--;
*d = '"';
return size + 2;
}
return size;
}