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Make RTF reader fall back to simple text if a correct RTF header is 

not detected. This should fix some installers.
This commit is contained in:
Phil Krylov 2005-04-13 11:11:03 +00:00 committed by Alexandre Julliard
parent ad7f4daf35
commit 1e9c200f61
5 changed files with 109 additions and 67 deletions
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130
dlls/riched20/editor.c
View File

@ -233,36 +233,40 @@ ME_TextBuffer *ME_MakeText() {
return buf;
}
#define STREAMIN_BUFFER_SIZE 4096 /* M$ compatibility */
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, EDITSTREAM *stream, ME_Style *style)
static LRESULT ME_StreamInText(ME_TextEditor *editor, DWORD dwFormat, ME_InStream *stream, ME_Style *style)
{
BYTE buffer[STREAMIN_BUFFER_SIZE+1];
WCHAR wszText[STREAMIN_BUFFER_SIZE+1];
WCHAR *pText;
TRACE("%08lx %p\n", dwFormat, stream);
stream->dwError = 0;
do {
long nDataSize = 0, nWideChars = 0;
stream->dwError = stream->pfnCallback(stream->dwCookie,
(dwFormat & SF_UNICODE ? (BYTE *)wszText : buffer),
STREAMIN_BUFFER_SIZE, &nDataSize);
if (stream->dwError)
break;
if (!nDataSize)
break;
long nWideChars = 0;
if (!stream->dwSize)
{
ME_StreamInFill(stream);
if (stream->editstream->dwError)
break;
if (!stream->dwSize)
break;
}
if (!(dwFormat & SF_UNICODE))
{
/* FIXME? this is doomed to fail on true MBCS like UTF-8, luckily they're unlikely to be used as CP_ACP */
nWideChars = MultiByteToWideChar(CP_ACP, 0, buffer, nDataSize, wszText, STREAMIN_BUFFER_SIZE);
nWideChars = MultiByteToWideChar(CP_ACP, 0, stream->buffer, stream->dwSize, wszText, STREAMIN_BUFFER_SIZE);
pText = wszText;
}
else
nWideChars = nDataSize>>1;
ME_InsertTextFromCursor(editor, 0, wszText, nWideChars, style);
if (nDataSize<STREAMIN_BUFFER_SIZE)
{
nWideChars = stream->dwSize >> 1;
pText = (WCHAR *)stream->buffer;
}
ME_InsertTextFromCursor(editor, 0, pText, nWideChars, style);
if (stream->dwSize < STREAMIN_BUFFER_SIZE)
break;
} while(1);
ME_CommitUndo(editor);
@ -428,6 +432,16 @@ void ME_RTFReadHook(RTF_Info *info) {
}
}
void
ME_StreamInFill(ME_InStream *stream)
{
stream->editstream->dwError = stream->editstream->pfnCallback(stream->editstream->dwCookie,
stream->buffer,
sizeof(stream->buffer),
&stream->dwSize);
stream->dwUsed = 0;
}
static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stream)
{
RTF_Info parser;
@ -435,6 +449,7 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
int from, to, to2, nUndoMode;
ME_UndoItem *pUI;
int nEventMask = editor->nEventMask;
ME_InStream inStream;
TRACE("%p %p\n", stream, editor->hWnd);
editor->nEventMask = 0;
@ -457,37 +472,60 @@ static LRESULT ME_StreamIn(ME_TextEditor *editor, DWORD format, EDITSTREAM *stre
nUndoMode = editor->nUndoMode;
editor->nUndoMode = umIgnore;
if (format & SF_RTF) {
/* setup the RTF parser */
memset(&parser, 0, sizeof parser);
RTFSetEditStream(&parser, stream);
parser.rtfFormat = format&(SF_TEXT|SF_RTF);
parser.hwndEdit = editor->hWnd;
parser.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
RTFDestroy(&parser);
style = parser.style;
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, stream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
ME_GetSelection(editor, &to, &to2);
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
else
inStream.editstream = stream;
inStream.editstream->dwError = 0;
inStream.dwSize = 0;
inStream.dwUsed = 0;
if (format & SF_RTF)
{
/* FIXME where to put cursor now ? */
/* Check if it's really RTF, and if it is not, use plain text */
ME_StreamInFill(&inStream);
if (!inStream.editstream->dwError)
{
if (strncmp(inStream.buffer, "{\\rtf1", 6) && strncmp(inStream.buffer, "{\\urtf", 6))
{
format &= ~SF_RTF;
format |= SF_TEXT;
}
}
}
if (!inStream.editstream->dwError)
{
if (format & SF_RTF) {
/* setup the RTF parser */
memset(&parser, 0, sizeof parser);
RTFSetEditStream(&parser, &inStream);
parser.rtfFormat = format&(SF_TEXT|SF_RTF);
parser.hwndEdit = editor->hWnd;
parser.editor = editor;
parser.style = style;
WriterInit(&parser);
RTFInit(&parser);
RTFSetReadHook(&parser, ME_RTFReadHook);
BeginFile(&parser);
/* do the parsing */
RTFRead(&parser);
RTFFlushOutputBuffer(&parser);
RTFDestroy(&parser);
style = parser.style;
}
else if (format & SF_TEXT)
ME_StreamInText(editor, format, &inStream, style);
else
ERR("EM_STREAMIN without SF_TEXT or SF_RTF\n");
ME_GetSelection(editor, &to, &to2);
/* put the cursor at the top */
if (!(format & SFF_SELECTION))
SendMessageA(editor->hWnd, EM_SETSEL, 0, 0);
else
{
/* FIXME where to put cursor now ? */
}
}
editor->nUndoMode = nUndoMode;

1
dlls/riched20/editor.h
View File

@ -213,6 +213,7 @@ void ME_Redo(ME_TextEditor *editor);
void ME_EmptyUndoStack(ME_TextEditor *editor);
int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int nStart, int nChars, BOOL bCRLF);
ME_DisplayItem *ME_FindItemAtOffset(ME_TextEditor *editor, ME_DIType nItemType, int nOffset, int *nItemOffset);
void ME_StreamInFill(ME_InStream *stream);
extern int me_debug;
extern HANDLE me_heap;

12
dlls/riched20/editstr.h
View File

@ -197,6 +197,18 @@ typedef struct tagME_FontTableItem {
WCHAR *szFaceName;
} ME_FontTableItem;
#define STREAMIN_BUFFER_SIZE 4096 /* M$ compatibility */
struct tagME_InStream {
EDITSTREAM *editstream;
DWORD dwSize;
DWORD dwUsed;
BYTE buffer[STREAMIN_BUFFER_SIZE];
};
typedef struct tagME_InStream ME_InStream;
#define STREAMOUT_BUFFER_SIZE 4096
#define STREAMOUT_FONTTBL_SIZE 8192
#define STREAMOUT_COLORTBL_SIZE 1024

26
dlls/riched20/reader.c
View File

@ -123,41 +123,35 @@ static inline void RTFFree(void *p)
int _RTFGetChar(RTF_Info *info)
{
int ch;
ME_InStream *stream = info->stream;
TRACE("\n");
/* if the last buffer wasn't full, it's EOF */
if (info->dwInputSize > 0 &&
info->dwInputSize == info->dwInputUsed &&
info->dwInputSize < sizeof(info->InputBuffer))
if (stream->dwSize > 0 && stream->dwSize == stream->dwUsed
&& stream->dwSize < sizeof(stream->buffer))
return EOF;
if (info->dwInputSize <= info->dwInputUsed)
if (stream->dwSize <= stream->dwUsed)
{
long count = 0;
info->editstream.dwError = info->editstream.pfnCallback(info->editstream.dwCookie,
info->InputBuffer, sizeof(info->InputBuffer), &count);
ME_StreamInFill(stream);
/* if error, it's EOF */
if (info->editstream.dwError)
if (stream->editstream->dwError)
return EOF;
/* if no bytes read, it's EOF */
if (count == 0)
if (stream->dwSize == 0)
return EOF;
info->dwInputSize = count;
info->dwInputUsed = 0;
}
ch = info->InputBuffer[info->dwInputUsed++];
ch = stream->buffer[stream->dwUsed++];
if (!ch)
return EOF;
return ch;
}
void RTFSetEditStream(RTF_Info *info, EDITSTREAM *es)
void RTFSetEditStream(RTF_Info *info, ME_InStream *stream)
{
TRACE("\n");
info->editstream.dwCookie = es->dwCookie;
info->editstream.dwError = es->dwError;
info->editstream.pfnCallback = es->pfnCallback;
info->stream = stream;
}
static void

7
dlls/riched20/rtf.h
View File

@ -1078,10 +1078,7 @@ struct _RTF_Info {
char *inputName;
char *outputName;
EDITSTREAM editstream;
char InputBuffer[0x1000];
DWORD dwInputSize;
DWORD dwInputUsed;
ME_InStream *stream;
/* edit window to output to */
HWND hwndEdit;
@ -1155,7 +1152,7 @@ void RTFMsg (RTF_Info *, const char *fmt, ...);
void RTFPanic (RTF_Info *, const char *fmt, ...);
void RTFFlushOutputBuffer( RTF_Info *info );
void RTFSetEditStream(RTF_Info *, EDITSTREAM *es);
void RTFSetEditStream(RTF_Info *info, ME_InStream *stream);
void WriterInit (RTF_Info *);
int BeginFile (RTF_Info *);