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msxml3: Write document prolog separately.

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This commit is contained in:
Nikolay Sivov 2011-12-09 18:24:46 +03:00 committed by Alexandre Julliard
parent a4b24978e9
commit 197d41156a
1 changed files with 96 additions and 39 deletions
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131
dlls/msxml3/mxwriter.c
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@ -78,6 +78,9 @@ typedef struct _mxwriter
IStream *dest;
ULONG dest_written;
INT decl_count; /* practically how many times startDocument was called */
INT decl_written; /* byte length of document prolog */
xmlOutputBufferPtr buffer;
} mxwriter;
@ -103,14 +106,58 @@ static HRESULT bstr_from_xmlCharEncoding(xmlCharEncoding enc, BSTR *encoding)
return *encoding ? S_OK : E_OUTOFMEMORY;
}
/* creates UTF-8 encoded prolog string with specified or store encoding value */
static int write_prolog_buffer(const mxwriter *This, xmlCharEncoding enc, xmlOutputBufferPtr buffer)
{
static const char version[] = "<?xml version=\"";
static const char encoding[] = " encoding=\"";
static const char standalone[] = " standalone=\"";
static const char yes[] = "yes\"?>";
static const char no[] = "no\"?>";
xmlBufferPtr buf;
xmlChar *s;
int use;
if (enc == XML_CHAR_ENCODING_UTF8)
buf = buffer->buffer;
else
buf = buffer->conv;
use = buf->use;
/* version */
xmlOutputBufferWrite(buffer, sizeof(version)-1, version);
s = xmlchar_from_wchar(This->version);
xmlOutputBufferWriteString(buffer, (char*)s);
heap_free(s);
xmlOutputBufferWrite(buffer, 1, "\"");
/* encoding */
xmlOutputBufferWrite(buffer, sizeof(encoding)-1, encoding);
xmlOutputBufferWriteString(buffer, xmlGetCharEncodingName(enc));
xmlOutputBufferWrite(buffer, 1, "\"");
/* standalone */
xmlOutputBufferWrite(buffer, sizeof(standalone)-1, standalone);
if (This->props[MXWriter_Standalone] == VARIANT_TRUE)
xmlOutputBufferWrite(buffer, sizeof(yes)-1, yes);
else
xmlOutputBufferWrite(buffer, sizeof(no)-1, no);
xmlOutputBufferWrite(buffer, sizeof(crlfA)-1, crlfA);
xmlOutputBufferFlush(buffer);
return buf->use - use;
}
/* Attempts to the write data from the mxwriter's buffer to
* the destination stream (if there is one).
*/
static HRESULT write_data_to_stream(mxwriter *This)
{
HRESULT hres;
xmlBufferPtr buffer;
ULONG written = 0;
xmlBufferPtr buffer = NULL;
HRESULT hr;
if (!This->dest)
return S_OK;
@ -137,15 +184,15 @@ static HRESULT write_data_to_stream(mxwriter *This)
* TODO: Check what Windows does if the IStream doesn't write all of
* the data we give it at once.
*/
hres = IStream_Write(This->dest, buffer->content+This->dest_written,
hr = IStream_Write(This->dest, buffer->content+This->dest_written,
buffer->use-This->dest_written, &written);
if (FAILED(hres)) {
WARN("Failed to write data to IStream (%08x)\n", hres);
return hres;
if (FAILED(hr)) {
WARN("Failed to write data to IStream (0x%08x)\n", hr);
return hr;
}
This->dest_written += written;
return hres;
return hr;
}
static void write_output_buffer(const mxwriter *This, const char *data, int len)
@ -189,6 +236,8 @@ static inline void reset_output_buffer(mxwriter *This)
xmlOutputBufferClose(This->buffer);
This->buffer = xmlAllocOutputBuffer(xmlGetCharEncodingHandler(This->encoding));
This->dest_written = 0;
This->decl_count = 0;
This->decl_written = 0;
}
static HRESULT writer_set_property(mxwriter *writer, MXWRITER_PROPS property, VARIANT_BOOL value)
@ -378,7 +427,10 @@ static HRESULT WINAPI mxwriter_get_output(IMXWriter *iface, VARIANT *dest)
if (!This->dest)
{
HRESULT hr = flush_output_buffer(This);
BSTR output;
HRESULT hr;
hr = flush_output_buffer(This);
if (FAILED(hr))
return hr;
@ -391,9 +443,35 @@ static HRESULT WINAPI mxwriter_get_output(IMXWriter *iface, VARIANT *dest)
return E_NOTIMPL;
}
V_VT(dest) = VT_BSTR;
V_BSTR(dest) = SysAllocStringLen((const WCHAR*)This->buffer->conv->content,
if (This->decl_count)
{
xmlOutputBufferPtr prolog;
INT i = This->decl_count;
WCHAR *ptr;
prolog = xmlAllocOutputBuffer(xmlGetCharEncodingHandler(xmlParseCharEncoding("UTF-16")));
write_prolog_buffer(This, xmlParseCharEncoding("UTF-16"), prolog);
ptr = output = SysAllocStringByteLen(NULL, prolog->conv->use*This->decl_count +
This->buffer->conv->use-This->decl_written);
while (i--)
{
memcpy(ptr, prolog->conv->content, prolog->conv->use);
ptr += prolog->conv->use/sizeof(WCHAR);
}
memcpy(ptr, This->buffer->conv->content + This->decl_written, This->buffer->conv->use-This->decl_written);
xmlOutputBufferClose(prolog);
}
else
{
output = SysAllocStringLen((const WCHAR*)This->buffer->conv->content,
This->buffer->conv->use/sizeof(WCHAR));
}
V_VT(dest) = VT_BSTR;
V_BSTR(dest) = output;
return S_OK;
}
@ -426,6 +504,7 @@ static HRESULT WINAPI mxwriter_put_encoding(IMXWriter *iface, BSTR encoding)
This->encoding = xmlParseCharEncoding(enc);
heap_free(enc);
TRACE("got encoding %d\n", This->encoding);
reset_output_buffer(This);
return S_OK;
}
@ -620,14 +699,7 @@ static HRESULT WINAPI mxwriter_saxcontent_putDocumentLocator(
static HRESULT WINAPI mxwriter_saxcontent_startDocument(ISAXContentHandler *iface)
{
static const char version[] = "<?xml version=\"";
static const char encoding[] = " encoding=\"";
static const char standalone[] = " standalone=\"";
static const char yes[] = "yes\"?>";
static const char no[] = "no\"?>";
mxwriter *This = impl_from_ISAXContentHandler( iface );
xmlChar *s;
TRACE("(%p)\n", This);
@ -643,26 +715,8 @@ static HRESULT WINAPI mxwriter_saxcontent_startDocument(ISAXContentHandler *ifac
if (This->props[MXWriter_OmitXmlDecl] == VARIANT_TRUE) return S_OK;
/* version */
write_output_buffer(This, version, sizeof(version)-1);
s = xmlchar_from_wchar(This->version);
write_output_buffer_str(This, (char*)s);
heap_free(s);
write_output_buffer(This, "\"", 1);
/* encoding */
write_output_buffer(This, encoding, sizeof(encoding)-1);
write_output_buffer_str(This, xmlGetCharEncodingName(This->encoding));
write_output_buffer(This, "\"", 1);
/* standalone */
write_output_buffer(This, standalone, sizeof(standalone)-1);
if (This->props[MXWriter_Standalone] == VARIANT_TRUE)
write_output_buffer(This, yes, sizeof(yes)-1);
else
write_output_buffer(This, no, sizeof(no)-1);
write_output_buffer(This, crlfA, sizeof(crlfA)-1);
This->decl_count++;
This->decl_written += write_prolog_buffer(This, This->encoding, This->buffer);
if (This->dest && This->encoding == XML_CHAR_ENCODING_UTF16LE) {
static const CHAR utf16BOM[] = {0xff,0xfe};
@ -928,6 +982,9 @@ HRESULT MXWriter_create(MSXML_VERSION version, IUnknown *outer, void **ppObj)
This->element = NULL;
This->decl_count = 0;
This->decl_written = 0;
This->dest = NULL;
This->dest_written = 0;