able/windows-nt
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
windows-nt/Source/XPSP1/NT/base/win32/fusion/xmlparser/xmlstream.cxx

2070 lines
58 KiB
C++
Raw Normal View History

Add source files
2020-09-26 03:20:57 -05:00
/*
*
* Copyright (c) 1998,1999 Microsoft Corporation. All rights reserved.
* EXEMPT: copyright change only, no build required
*
*/
#include "stdinc.h"
#include "core.hxx"
#pragma hdrstop
#include "xmlhelper.hxx"
#include "xmlstream.hxx"
#include "bufferedstream.hxx"
#include "xmlparser.hxx"
const long BLOCK_SIZE = 512;
const long STACK_INCREMENT = 10;
// macros used in this file
#define INTERNALERROR return XML_E_INTERNALERROR;
#define checkeof(a,b) if (_fEOF) return b;
#define ADVANCE hr = _pInput->nextChar(&_chLookahead, &_fEOF); if (hr != S_OK) return hr;
#define ADVANCETO(a) hr = AdvanceTo(a); if (hr != S_OK) return hr;
#define ISWHITESPACE(ch) _pInput->isWhiteSpace(ch)
#define STATE(state) { _sSubState = state; return S_OK; }
#define GOTOSTART(state) { _sSubState = state; goto Start; }
#define DELAYMARK(hr) (hr == S_OK || (hr >= XML_E_TOKEN_ERROR && hr < XML_E_LASTERROR))
#define XML_E_FOUNDPEREF 0x8000e5ff
// The tokenizer has special handling for the following attribute types.
// These values are derived from the XML_AT_XXXX types provided in SetType
// and are also calculated during parsing of an ATTLIST for parsing of
// default values.
typedef enum
{
XMLTYPE_CDATA, // the default.
XMLTYPE_NAME,
XMLTYPE_NAMES,
XMLTYPE_NMTOKEN,
XMLTYPE_NMTOKENS,
} XML_ATTRIBUTE_TYPE;
//==============================================================================
// xiaoyu : a simplified table : only deal with comments, not include DOCTYPE, NotationDecl, EntityDecl and ElementDecl.
// Parse an <!^xxxxxxxx Declaration.
const StateEntry g_DeclarationTable[] =
{
// 0 '<' ^ '!'
{ OP_CHAR, L"!", 1, (DWORD)XML_E_INTERNALERROR, },
// 1 '<!' ^ '-'
{ OP_PEEK, L"-", 2, 4, 0 },
// 2 '<!-'
{ OP_COMMENT, NULL, 3, },
// 3 done !!
{ OP_POP, NULL, 0, 0 },
// 4 '<!' ^ '['
{ OP_PEEK, L"[", 5, (DWORD)XML_E_BADDECLNAME, 0 }, //xiaoyu : we do not consider others <!XXX, which is a DTD subset
// 5 '<![...'
{ OP_CONDSECT, NULL, 3, }
};
//==============================================================================
// Parse an <?xml or <?xml:namespace declaration.
const StateEntry g_XMLDeclarationTable[] =
{
// 0 must be xml declaration - and not xml namespace declaration
{ OP_TOKEN, NULL, 1, XML_XMLDECL, 0 },
// 1 '<?xml' ^ S version="1.0" ...
{ OP_OWS, NULL, 2 },
// 2 '<?xml' S ^ version="1.0" ...
{ OP_SNCHAR, NULL, 3, (DWORD)XML_E_XMLDECLSYNTAX },
// 3 '<?xml' S ^ version="1.0" ...
{ OP_NAME, NULL, 4, },
// 4 '<?xml' S version^="1.0" ...
{ OP_STRCMP, L"version", 5, 12, XML_VERSION },
// 5
{ OP_EQUALS, NULL, 6 },
// 6 '<?xml' S version = ^ "1.0" ...
{ OP_ATTRVAL, NULL, 32, 0},
// 7 '<?xml' S version '=' value ^
{ OP_TOKEN, NULL, 8, XML_PCDATA, -1 },
// 8 ^ are we done ?
{ OP_CHARWS, L"?", 28, 9 }, // must be '?' or whitespace.
// 9 ^ S? [encoding|standalone] '?>'
{ OP_OWS, NULL, 10 },
// 10
{ OP_CHAR, L"?", 28, 33 }, // may have '?' after skipping whitespace.
// 11 ^ [encoding|standalone] '?>'
{ OP_NAME, NULL, 12, },
// 12
{ OP_STRCMP, L"standalone", 23, 13, XML_STANDALONE },
// 13
{ OP_STRCMP, L"encoding", 14, (DWORD)XML_E_UNEXPECTED_ATTRIBUTE, XML_ENCODING },
// 14
{ OP_EQUALS, NULL, 15 },
// 15
{ OP_ATTRVAL, NULL, 16, 0 },
// 16
{ OP_ENCODING, NULL, 17, 0, -1 },
// 17
{ OP_TOKEN, NULL, 18, XML_PCDATA, -1 },
// 18 ^ are we done ?
{ OP_CHARWS, L"?", 28, 19 }, // must be '?' or whitespace.
// 19 ^ S? standalone '?>'
{ OP_OWS, NULL, 20 },
// 20
{ OP_CHAR, L"?", 28, 34 }, // may have '?' after skipping whitespace.
// 21 ^ standalone '?>'
{ OP_NAME, NULL, 22, },
// 22
{ OP_STRCMP, L"standalone", 23, (DWORD)XML_E_UNEXPECTED_ATTRIBUTE,
XML_STANDALONE },
// 23
{ OP_EQUALS, NULL, 24 },
// 24
{ OP_ATTRVAL, NULL, 25, 0 },
// 25
{ OP_STRCMP, L"yes", 31, 30, -1 },
// 26 <?xml ....... ^ '?>' -- now expecting just the closing '?>' chars
{ OP_OWS, NULL, 27 },
// 27
{ OP_CHAR, L"?", 28, (DWORD)XML_E_XMLDECLSYNTAX, 0 },
// 28
{ OP_CHAR, L">", 29, (DWORD)XML_E_XMLDECLSYNTAX, 0 },
// 29 done !!
{ OP_POP, NULL, 0, XMLStream::XML_ENDXMLDECL },
//----------------------- check standalone values "yes" or "no"
// 30
{ OP_STRCMP, L"no", 31, (DWORD)XML_E_INVALID_STANDALONE, -1 },
// 31
{ OP_TOKEN, NULL, 26, XML_PCDATA, -1 },
//----------------------- check version = "1.0"
// 32
{ OP_STRCMP, L"1.0", 7, (DWORD)XML_E_INVALID_VERSION, -1 },
// 33
{ OP_SNCHAR, NULL, 11, (DWORD)XML_E_XMLDECLSYNTAX },
// 34
{ OP_SNCHAR, NULL, 21, (DWORD)XML_E_XMLDECLSYNTAX },
};
static const WCHAR* g_pstrCDATA = L"CDATA";
////////////////////////////////////////////////////////////////////////
XMLStream::XMLStream(XMLParser * pXMLParser)
: _pStack(1), _pStreams(1)
{
// precondition: 'func' is never NULL
_fnState = &XMLStream::init;
_pInput = NULL;
_pchBuffer = NULL;
_fDTD = false;
//_fInternalSubset = false;
_cStreamDepth = 0;
_pXMLParser = pXMLParser;
_init();
SetFlags(0);
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::init()
{
HRESULT hr = S_OK;
if (_pInput == NULL)
{
//haven' called put-stream yet
return XML_E_ENDOFINPUT;
}
_init();
#ifdef FUSION_USE_OLD_XML_PARSER_SOURCE
if (_fDTD)
{
_fnState = &XMLStream::parseDTDContent;
}
else
#endif
{
_fnState = &XMLStream::parseContent;
}
checkhr2(push(&XMLStream::firstAdvance,0));
return hr;
}
////////////////////////////////////////////////////////////////////////
void
XMLStream::_init()
{
_fEOF = false;
//_fEOPE = false;
_chLookahead = 0;
_nToken = XML_PENDING;
_chTerminator = 0;
_lLengthDelta = 0;
_lNslen = _lNssep = 0;
_sSubState = 0;
_lMarkDelta = 0;
//_nAttrType = XMLTYPE_CDATA;
_fUsingBuffer = false;
_lBufLen = 0;
delete[] _pchBuffer;
_pchBuffer = NULL;
_lBufSize = 0;
_fDelayMark = false;
_fFoundWhitespace = false;
_fFoundNonWhitespace = false;
//_fFoundPEREf = false;
_fWasUsingBuffer = false;
_chNextLookahead = 0;
//_lParseStringLevel = 0;
//_cConditionalSection = 0;
//_cIgnoreSectLevel = 0;
//_fWasDTD = false;
_fParsingAttDef = false;
_fFoundFirstElement = false;
_fReturnAttributeValue = true;
//_fHandlePE = true;
_pTable = NULL;
//_lEOFError = 0;
}
////////////////////////////////////////////////////////////////////////
XMLStream::~XMLStream()
{
delete _pInput;
delete[] _pchBuffer;
InputInfo* pi = _pStreams.peek();
while (pi != NULL)
{
// Previous stream is finished also, so
// pop it and continue on.
delete pi->_pInput;
pi = _pStreams.pop();
}
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::AppendData(
/* [in] */ const BYTE *buffer,
/* [in] */ long length,
/* [in] */ BOOL last)
{
if (_pInput == NULL)
{
_pInput = NEW (BufferedStream(this));
if (_pInput == NULL)
return E_OUTOFMEMORY;
init();
}
HRESULT hr = _pInput->AppendData(buffer, length, last);
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::Reset( void)
{
init();
delete _pInput;
_pInput = NULL;
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::PushStream(
/* [unique][in] */ EncodingStream *p,
/* [in] */ bool fExternalPE)
{
UNUSED(fExternalPE);
if (_pStreams.used() == 0 && _pInput == NULL)
init();
_cStreamDepth++;
if (_fDelayMark && _pInput != NULL)
{
mark(_lMarkDelta);
_lMarkDelta = 0;
_fDelayMark = false;
}
// Save current input stream.
if (_pInput != NULL)
{
InputInfo* pi = _pStreams.push();
if (pi == NULL)
return E_OUTOFMEMORY;
pi->_pInput = _pInput;
pi->_chLookahead = _chLookahead;
//pi->_fPE = true; // assume this is a parameter entity.
//pi->_fExternalPE = fExternalPE;
//pi->_fInternalSubset = _fInternalSubset;
if (&XMLStream::skipWhiteSpace == _fnState && _pStack.used() > 0) {
StateInfo* pSI = _pStack.peek();
pi->_fnState = pSI->_fnState;
}
else
pi->_fnState = _fnState;
// and prepend pe text with space as per xml spec.
_chLookahead = L' ';
_chNextLookahead = _chLookahead;
_pInput = NULL;
}
_pInput = NEW (BufferedStream(this));
if (_pInput == NULL)
return E_OUTOFMEMORY;
if (p != NULL)
_pInput->Load(p);
if (_chLookahead == L' ')
_pInput->setWhiteSpace(); // _pInput didn't see this space char.
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::PopStream()
{
// This method has to pop all streams until it finds a stream that
// can deliver the next _chLookahead character.
HRESULT hr = S_OK;
InputInfo* pi = NULL;
pi = _pStreams.peek();
if (pi == NULL) return S_FALSE;
_chLookahead = pi->_chLookahead;
// Found previous stream, so we can continue.
_fEOF = false;
// Ok, so we actually got the next character, so
// we can now safely throw away the previous
// lookahead character and return the next
// non-whitespace character from the previous stream.
delete _pInput;
_pInput = pi->_pInput;
if (_chLookahead == L' ')
_pInput->setWhiteSpace();
// BUGBUG: we need to clear this so that the parser does not
// try and pop a download in the internalPE case (when handling XML_E_ENDOFINPUT in run())
// but this means that internal PEs never get XMLNF_ENDENTITY notifications generated.
// The DTDNodeFactory requires this behaviour currently (incorrectly)
_pStreams.pop();
_cStreamDepth--;
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::GetNextToken(
/* [out] */ DWORD *t,
/* [out] */ const WCHAR **text,
/* [out] */ long *length,
/* [out] */ long *nslen)
{
HRESULT hr;
if (_fDTD)
return E_UNEXPECTED;
if (_fDelayMark)
{
mark(_lMarkDelta);
_lMarkDelta = 0;
_fDelayMark = false;
}
hr = (this->*_fnState)();
while (hr == S_OK && _nToken == XML_PENDING)
hr = (this->*_fnState)();
if (hr == S_OK)
*t = _nToken;
else if (hr == E_PENDING) {
*t = XML_PENDING;
*length = *nslen = 0;
*text = NULL;
goto CleanUp;
}
else
*t = XML_PENDING;
// At this point hr == S_OK or it is some error. So we
// want to return the text of the current token, since this
// is useful in both cases.
if (! _fUsingBuffer)
{
getToken(text,length);
if (_lLengthDelta != 0)
{ // xiaoyu : IF STOP WITHIN, HAVE A CAREFUL LOOK : in ParsingAttributeValue, we have to read ahead of one char '"'
*length += _lLengthDelta;
_lLengthDelta = 0;
}
// This can only happen in the context of a DTD.
// if (_fWasUsingBuffer)
// {
// _fUsingBuffer = _fWasUsingBuffer;
// _fWasUsingBuffer = false;
// }
}
else
{ // xiaoyu : IF STOP WITHIN, HAVE A CAREFUL LOOK
*text = _pchBuffer;
*length = _lBufLen;
_fUsingBuffer = false;
_fFoundWhitespace = false;
_lBufLen = 0;
_lLengthDelta = 0;
}
if (DELAYMARK(hr))
{
// Mark next time around so that error information points to the
// beginning of this token.
_fDelayMark = true;
}
else
{ // xiaoyu : IF STOP WITHIN, HAVE A CAREFUL LOOK
// otherwise mark this spot right away so we point to the exact
// source of the error.
mark(_lMarkDelta);
_lMarkDelta = 0;
}
_nToken = XML_PENDING;
*nslen = _lNslen;
_lNslen = _lNssep = 0;
CleanUp:
return hr;
}
////////////////////////////////////////////////////////////////////////
ULONG
XMLStream::GetLine()
{
BufferedStream* input = getCurrentStream();
if (input != NULL)
return input->getLine();
return 0;
}
////////////////////////////////////////////////////////////////////////
ULONG
XMLStream::GetLinePosition( )
{
BufferedStream* input = getCurrentStream();
if (input != NULL)
return input->getLinePos();
return 0;
}
////////////////////////////////////////////////////////////////////////
ULONG
XMLStream::GetInputPosition( )
{
BufferedStream* input = getCurrentStream();
if (input != NULL)
return input->getInputPos();
return 0;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::GetLineBuffer(
/* [out] */ const WCHAR * *buf, ULONG* len, ULONG* startpos)
{
if (buf == NULL || len == NULL)
return E_INVALIDARG;
*buf = NULL;
BufferedStream* input = getCurrentStream();
if (input)
*buf = input->getLineBuf(len, startpos);
return S_OK;
}
////////////////////////////////////////////////////////////////////////
BufferedStream*
XMLStream::getCurrentStream()
{
// Return the most recent stream that
// actually has somthing to return.
BufferedStream* input = _pInput;
if (!_pInput)
{
return NULL;
}
int i = _pStreams.used()-1;
do
{
ULONG len = 0, pos = 0;
// const WCHAR* buf = input->getLineBuf(&len, &pos); // generates C4189: 'buf' local variable is initialized but not referenced
(void) input->getLineBuf(&len, &pos);
if (len > 0)
return input;
if (i >= 0)
input = _pStreams[i--]->_pInput;
else
break;
}
while (input != NULL);
return NULL;
}
////////////////////////////////////////////////////////////////////////
void
XMLStream::SetFlags( unsigned short usFlags)
{
_usFlags = usFlags;
// And break out the flags for performance reasons.
//_fFloatingAmp = (usFlags & XMLFLAG_FLOATINGAMP) != 0;
_fShortEndTags = (usFlags & XMLFLAG_SHORTENDTAGS) != 0;
_fCaseInsensitive = (usFlags & XMLFLAG_CASEINSENSITIVE) != 0;
_fNoNamespaces = (usFlags & XMLFLAG_NONAMESPACES) != 0;
//_fNoWhitespaceNodes = false; // this is now bogus. (usFlags & XMLFLAG_NOWHITESPACE) != 0;
//_fIE4Quirks = (_usFlags & XMLFLAG_IE4QUIRKS) != 0;
//_fNoDTDNodes = (_usFlags & XMLFLAG_NODTDNODES) != 0;
}
////////////////////////////////////////////////////////////////////////
unsigned short
XMLStream::GetFlags()
{
return _usFlags;
}
////////////////////////////////////////////////////////////////////////
//======================================================================
// Real Implementation
HRESULT
XMLStream::firstAdvance()
{
HRESULT hr;
ADVANCE;
checkhr2(pop(false));
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseContent()
{
HRESULT hr = S_OK;
if (_fEOF)
return XML_E_ENDOFINPUT;
switch (_chLookahead){
case L'<':
ADVANCE;
checkeof(_chLookahead, XML_E_UNCLOSEDDECL);
switch (_chLookahead)
{
case L'!':
checkhr2(_pInput->Freeze()); // stop shifting data until '>'
return pushTable( 0, g_DeclarationTable, (DWORD)XML_E_UNCLOSEDDECL);
case L'?':
checkhr2(push( &XMLStream::parsePI ));
return parsePI();
case L'/':
checkhr2(push(&XMLStream::parseEndTag));
return parseEndTag();
default:
checkhr2(push( &XMLStream::parseElement )); // push ParseContent, and _fnState = parseElement
if (_fFoundFirstElement)
{
return parseElement();
}
else
{
// Return special end prolog token and then continue with
// with parseElement.
_fFoundFirstElement = true;
_nToken = XML_ENDPROLOG;
}
}
break;
default:
checkhr2(push(&XMLStream::parsePCData));
return parsePCData();
break;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::skipWhiteSpace()
{
HRESULT hr = S_OK;
while (ISWHITESPACE(_chLookahead) && ! _fEOF)
{
ADVANCE;
}
checkhr2(pop(false));
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseElement()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
checkhr2(_pInput->Freeze()); // stop shifting data until '>'
checkhr2(push( &XMLStream::parseName, 1));
checkhr2(parseName());
_sSubState = 1;
// fall through
case 1:
checkeof(_chLookahead, XML_E_UNCLOSEDSTARTTAG);
_nToken = XML_ELEMENT;
// and then try and parse the attributes, and return
// to state 2 to finish up. With an optimization
// for the case where there are no attributes.
if (_chLookahead == L'/' || _chLookahead == L'>')
{
_sSubState = 2;
}
else {
if (!ISWHITESPACE(_chLookahead))
{
return XML_E_BADNAMECHAR;
}
_chEndChar = L'/'; // for empty tags. //xiaoyu : used to match ENDTAG
checkhr2(push(&XMLStream::parseAttributes,2));
}
return S_OK;
break;
case 2: // finish up with start tag.
mark(); // only return '>' or '/>' in _nToken text
if (_chLookahead == L'/')
{
// must be empty tag sequence '/>'.
ADVANCE;
_nToken = XML_EMPTYTAGEND;
}
else if (_chLookahead == L'>')
{
_nToken = XML_TAGEND;
}
else if (ISWHITESPACE(_chLookahead))
{
return XML_E_UNEXPECTED_WHITESPACE;
}
else
return XML_E_EXPECTINGTAGEND;
_sSubState = 3;
// fall through
case 3:
checkeof(_chLookahead, XML_E_UNCLOSEDSTARTTAG);
if (_chLookahead != L'>')
{
if (ISWHITESPACE(_chLookahead))
return XML_E_UNEXPECTED_WHITESPACE;
else
return XML_E_EXPECTINGTAGEND;
}
ADVANCE;
mark();
checkhr2(pop());// return to parseContent.
return _pInput->UnFreeze();
break;
case 4: // swollow up bad tag
// Allow the weird CDF madness <PRECACHE="YES"/>
// For total compatibility we fake out the parser by returning
// XML_EMPTYTAGEND, this way the rest of the tag becomes PCDATA.
// YUK -- but it works.
_nToken = XML_EMPTYTAGEND;
mark();
checkhr2(pop());// return to parseContent.
return _pInput->UnFreeze();
break;
default:
INTERNALERROR;
}
//return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseEndTag()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
ADVANCE; // soak up the '/'
mark();
// SHORT END TAG SUPPORT, IE4 Compatibility Mode only.
if (! _fShortEndTags || _chLookahead != L'>')
{
checkhr2(push( &XMLStream::parseName, 1));
checkhr2(parseName());
}
_sSubState = 1;
// fall through
case 1: // finish parsing end tag
checkeof(_chLookahead, XML_E_UNCLOSEDENDTAG);
_nToken = XML_ENDTAG;
checkhr2(push(&XMLStream::skipWhiteSpace, 2));
return S_OK;
case 2:
checkeof(_chLookahead, XML_E_UNCLOSEDENDTAG);
if (_chLookahead != L'>')
{
return XML_E_BADNAMECHAR;
}
ADVANCE;
mark();
checkhr2(pop());// return to parseContent.
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parsePI()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
//_fWasDTD = _fDTD; // as far as Advance is concerned, the contents
//_fHandlePE = false; // of a PI are not special.
ADVANCE;
checkhr2(_pInput->Freeze()); // stop shifting data until '?>'
mark(); // don't include '?' in tag name.
if (_chLookahead == L'x' || _chLookahead == L'X')
{
// perhaps this is the magic <?xml version="1.0"?> declaration.
STATE(7); // jump to state 7.
}
// fall through
_sSubState = 1;
case 1:
checkhr2(push( &XMLStream::parseName, 2));
checkhr2(parseName());
_sSubState = 2;
// fall through
case 2:
checkeof(_chLookahead, XML_E_UNCLOSEDPI);
if (_chLookahead != L'?' && ! ISWHITESPACE(_chLookahead))
{
return XML_E_BADNAMECHAR;
}
_nToken = XML_PI;
STATE(3); // found startpi _nToken and return to _sSubState 3
break;
case 3: // finish with rest of PI
if (_chLookahead == L'?')
{
ADVANCE;
if (_chLookahead == L'>')
{
STATE(6);
}
else
{
return XML_E_EXPECTINGTAGEND;
}
}
checkhr2(push(&XMLStream::skipWhiteSpace, 4));
checkhr2( skipWhiteSpace() );
_sSubState = 4;
// fall through
case 4: // support for normalized whitespace
mark(); // strip whitespace from beginning of PI data, since this is
// just the separator between the PI target name and the PI data.
_sSubState = 5;
// fallthrough
case 5:
while (! _fEOF )
{
if (_chLookahead == L'?')
{
ADVANCE;
break;
}
if (! isCharData(_chLookahead))
return XML_E_PIDECLSYNTAX;
ADVANCE;
}
_sSubState = 6; // go to next state
// fall through.
case 6:
checkeof(_chLookahead, XML_E_UNCLOSEDPI);
if (_chLookahead == L'>')
{
ADVANCE;
_lLengthDelta = -2; // don't include '?>' in PI CDATA.
}
else
{
// Hmmm. Must be a lone '?' so go back to state 5.
STATE(5);
}
_nToken = XML_ENDPI;
//_fHandlePE = true;
checkhr2(pop());
return _pInput->UnFreeze();
break;
case 7: // recognize 'm' in '<?xml' declaration
ADVANCE;
if (_chLookahead != L'm' && _chLookahead != L'M')
{
STATE(11); // not 'xml' so jump to state 11 to parse name
}
_sSubState = 8;
// fall through
case 8: // recognize L'l' in '<?xml' declaration
ADVANCE;
if (_chLookahead != L'l' && _chLookahead != L'L')
{
STATE(11); // not 'xml' so jump to state 11 to parse name
}
_sSubState = 9;
// fall through
case 9: // now need whitespace or ':' or '?' to terminate name.
ADVANCE;
if (ISWHITESPACE(_chLookahead))
{
if (! _fCaseInsensitive)
{
const WCHAR* t = NULL;
long len =0; // for prefix bug : xiaoyuw@08/28/00
getToken(&t,&len);
//if (! StringEquals(L"xml",t,3,false)) // case sensitive
if (::FusionpCompareStrings(L"xml", 3, t, 3, false)!=0) // not equal
return XML_E_BADXMLCASE;
}
return pushTable(10, g_XMLDeclarationTable, (DWORD)XML_E_UNCLOSEDPI);
}
if (isNameChar(_chLookahead) || _chLookahead == ':')
{
STATE(11); // Hmmm. Must be something else then so continue parsing name
}
else
{
return XML_E_XMLDECLSYNTAX;
}
break;
case 10:
//_fHandlePE = true;
checkhr2(pop());
return _pInput->UnFreeze();
break;
case 11:
if (_chLookahead == ':')
ADVANCE;
_sSubState = 12;
// fall through
case 12:
if (isNameChar(_chLookahead))
{
checkhr2(push( &XMLStream::parseName, 2));
_sSubState = 1; // but skip IsStartNameChar test
checkhr2(parseName());
return S_OK;
}
else
{
STATE(2);
}
break;
default:
INTERNALERROR;
}
//return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseComment()
{
// ok, so '<!-' has been parsed so far
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
//_fWasDTD = _fDTD; // as far as the DTD is concerned, the contents
//_fHandlePE = false; // of a COMMENT are not special.
ADVANCE; // soak up first '-'
checkeof(_chLookahead, XML_E_UNCLOSEDCOMMENT);
if (_chLookahead != L'-')
{
return XML_E_COMMENTSYNTAX;
}
_sSubState = 1;
// fall through
case 1:
ADVANCE; // soak up second '-'
mark(); // don't include '<!--' in comment text
_sSubState = 2;
// fall through;
case 2:
while (! _fEOF)
{
if (_chLookahead == L'-')
{
ADVANCE; // soak up first closing L'-'
break;
}
if (! isCharData(_chLookahead))
return XML_E_BADCHARDATA;
ADVANCE;
}
checkeof(_chLookahead, XML_E_UNCLOSEDCOMMENT);
_sSubState = 3; // advance to next state
// fall through.
case 3:
if (_chLookahead != L'-')
{
// Hmmm, must have been a floating L'-' so go back to state 2
STATE(2);
}
ADVANCE; // soak up second closing L'-'
_sSubState = 4;
// fall through
case 4:
checkeof(_chLookahead, XML_E_UNCLOSEDCOMMENT);
//if (_chLookahead != L'>' && ! _fIE4Quirks)
if (_chLookahead != L'>')
{
// cannot have floating L'--' unless we are in compatibility mode.
return XML_E_COMMENTSYNTAX;
}
ADVANCE; // soak up closing L'>'
_lLengthDelta = -3; // don't include L'-->' in PI CDATA.
_nToken = XML_COMMENT;
checkhr2(pop());
//_fHandlePE = true;
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseName()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
if (! isStartNameChar(_chLookahead))
{
if (ISWHITESPACE(_chLookahead))
hr = XML_E_UNEXPECTED_WHITESPACE;
else
hr = XML_E_BADSTARTNAMECHAR;
goto CleanUp;
}
mark();
_sSubState = 1;
// fall through
case 1:
_lNslen = _lNssep = 0;
while (isNameChar(_chLookahead) && !_fEOF)
{
ADVANCE;
}
hr = pop(false); // return to the previous state
break;
default:
INTERNALERROR;
}
CleanUp:
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseAttributes()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
//_nAttrType = XMLTYPE_CDATA;
_fCheckAttribute = false;
checkhr2(push(&XMLStream::skipWhiteSpace, 1));
checkhr2( skipWhiteSpace() );
_sSubState = 1;
// fall through
case 1:
if (_chLookahead == _chEndChar || _chLookahead == L'>' )
{
checkhr2(pop()); // no attributes.
return S_OK;
}
checkhr2( push( &XMLStream::parseName, 2 ) );
checkhr2( parseName() );
if (!ISWHITESPACE(_chLookahead) && _chLookahead != L'=')
{
return XML_E_BADNAMECHAR;
}
_sSubState = 2;
// fall through
case 2:
if (ISWHITESPACE(_chLookahead))
{
// Eq ::= S? '=' S?
STATE(7);
}
checkeof(_chLookahead, XML_E_UNCLOSEDSTARTTAG);
_nToken = XML_ATTRIBUTE;
_sSubState = 3;
return S_OK;
break;
case 3:
if (ISWHITESPACE(_chLookahead))
return XML_E_UNEXPECTED_WHITESPACE;
_fWhitespace = false;
_sSubState = 4;
// fall through
case 4:
if (_chLookahead != L'=')
{
return XML_E_MISSINGEQUALS;
}
ADVANCE;
if (ISWHITESPACE(_chLookahead))
{
// allow whitespace between '=' and attribute value.
checkhr2(push(&XMLStream::skipWhiteSpace, 5));
checkhr2( skipWhiteSpace() );
}
_sSubState = 5;
// fall through
case 5:
if (ISWHITESPACE(_chLookahead))
return XML_E_UNEXPECTED_WHITESPACE;
if (_chLookahead != L'"' && _chLookahead != L'\'')
{
return XML_E_MISSINGQUOTE;
}
_chTerminator = _chLookahead;
ADVANCE;
mark();
return push(&XMLStream::parseAttrValue, 6);
//_sSubState = 6;
// fall through;
case 6:
checkeof(_chLookahead, XML_E_UNCLOSEDSTARTTAG);
if (_chLookahead == _chEndChar || _chLookahead == L'>')
{
checkhr2(pop());
return S_OK;
}
if (! ISWHITESPACE(_chLookahead) )
{
return XML_E_MISSINGWHITESPACE;
}
STATE(0); // go back to state 0
break;
case 7:
// allow whitespace between attribute and '='
_lLengthDelta = _pInput->getTokenLength();
checkhr2(push(&XMLStream::skipWhiteSpace, 8));
checkhr2( skipWhiteSpace() );
_sSubState = 8;
// fall through
case 8:
checkeof(_chLookahead, XML_E_UNCLOSEDSTARTTAG);
_lLengthDelta -= _pInput->getTokenLength();
STATE(2);
break;
default:
INTERNALERROR;
}
//return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT XMLStream::parseAttrValue()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
_fParsingAttDef = true;
// mark beginning of attribute data
_sSubState = 2;
// fall through;
case 2:
while ( _chLookahead != _chTerminator &&
_chLookahead != L'<' &&
! _fEOF )
{
if (_chLookahead == L'&')
{
// then parse entity ref and then return
// to state 2 to continue with PCDATA.
return push(&XMLStream::parseEntityRef,2);
}
hr = _pInput->scanPCData(&_chLookahead, &_fWhitespace);
if (FAILED(hr))
{
if (hr == E_PENDING)
{
hr = S_OK;
ADVANCE;
}
return hr;
}
}
_sSubState = 3;
// fall through
case 3:
checkeof(_chLookahead, XML_E_UNCLOSEDSTRING);
if (_chLookahead == _chTerminator)
{
ADVANCE;
if (_fReturnAttributeValue)
{
// return what we have so far - if anything.
if ((_fUsingBuffer && _lBufLen > 0) ||
_pInput->getTokenLength() > 1)
{
_lLengthDelta = -1; // don't include string _chTerminator.
_nToken = XML_PCDATA;
}
}
else
{
_fReturnAttributeValue = true; // reset to default value.
}
_fParsingAttDef = false;
checkhr2(pop());
return S_OK;
}
else
{
return XML_E_BADCHARINSTRING;
}
break;
default:
INTERNALERROR;
}
//return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::ScanHexDigits()
{
HRESULT hr = S_OK;
while (! _fEOF && _chLookahead != L';')
{
if (! isHexDigit(_chLookahead))
{
return ISWHITESPACE(_chLookahead) ? XML_E_UNEXPECTED_WHITESPACE : XML_E_BADCHARINENTREF;
}
ADVANCE;
}
checkeof(_chLookahead, XML_E_UNEXPECTEDEOF);
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::ScanDecimalDigits()
{
HRESULT hr = S_OK;
while (! _fEOF && _chLookahead != L';')
{
if (! isDigit(_chLookahead))
{
return ISWHITESPACE(_chLookahead) ? XML_E_UNEXPECTED_WHITESPACE : XML_E_BADCHARINENTREF;
}
ADVANCE;
}
checkeof(_chLookahead, XML_E_UNEXPECTEDEOF);
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parsePCData()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
_fWhitespace = true;
_sSubState = 1;
// fall through;
case 1:
// This state is used when we are not normalizing white space. This
// is a separate state for performance reasons.
// Normalizing whitespace is about 11% slower.
while (_chLookahead != L'<' && ! _fEOF )
{
if (_chLookahead == L'&')
{
// then parse entity ref and then return
// to state 1 to continue with PCDATA.
return push(&XMLStream::parseEntityRef,1);
}
if (_chLookahead == L'>')
{
WCHAR* pText = NULL;
long len = 0;
_pInput->getToken((const WCHAR**)&pText, &len);
//if (len >= 2 && StrCmpN(L"]]", pText + len - 2, 2) == 0)
if ((len >= 2) && (::FusionpCompareStrings(L"]]", 2, pText + len - 2, 2, false)==0))
return XML_E_INVALID_CDATACLOSINGTAG;
}
// This slows us down too much.
// else if (! isCharData(_chLookahead))
// {
// return XML_E_BADCHARDATA;
// }
hr = _pInput->scanPCData(&_chLookahead, &_fWhitespace);
if (FAILED(hr))
{
if (hr == E_PENDING)
{
hr = S_OK;
ADVANCE;
}
return hr;
}
checkhr2(hr);
}
_sSubState = 2;
// fall through
case 2:
if (_pInput->getTokenLength() > 0 || _fUsingBuffer)
{
_nToken = _fWhitespace ? XML_WHITESPACE : XML_PCDATA;
}
checkhr2(pop());
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseEntityRef()
{
HRESULT hr = S_OK;
long entityLen = 0, lLen = 1;
const WCHAR* t = NULL;
long len = 0;
Start:
switch (_sSubState)
{
case 0: // ^ ( '&#' [0-9]+ ) | ('&#X' [0-9a-fA-F]+) | ('&' Name) ';'
_nPreToken = XML_PENDING;
_lEntityPos = _pInput->getTokenLength(); // record entity position.
_fPCDataPending = (_lEntityPos > 0);
if (PreEntityText())
{
// remember the pending text before parsing the entity.
_nPreToken = _nToken;
_nToken = XML_PENDING;
}
_sSubState = 1;
// fall through
case 1:
ADVANCE; // soak up the '&'
_sSubState = 2;
// fall through
case 2:
checkeof(_chLookahead, XML_E_UNEXPECTEDEOF);
if (_chLookahead == L'#')
{
ADVANCE;
_sSubState = 3;
// fall through
}
else
{
// Loose entity parsing allows "...&6..."
if (! isStartNameChar(_chLookahead))
{
/*
if (_fFloatingAmp)
{
// then it isn't an entity reference, so go back to PCDATA
if (_fUsingBuffer)
{
// this in case we are normalizing white space.
PushChar(L'&');
}
_fWhitespace = false;
checkhr2(pop());
return S_OK;
}
else */
if (ISWHITESPACE(_chLookahead))
return XML_E_UNEXPECTED_WHITESPACE;
else
return XML_E_BADSTARTNAMECHAR;
}
checkhr2(push(&XMLStream::parseName, 6));
_sSubState = 1; // avoid doing a mark() so we can return PCDATA if necessary.
return parseName();
}
break;
// ------------- Numeric entity references --------------------
case 3:
checkeof(_chLookahead, XML_E_UNEXPECTEDEOF);
if (_chLookahead == L'x')
{
// hex character reference.
ADVANCE;
STATE(5); // go to state 5
}
_sSubState = 4;
// fall through
case 4: // '&#' ^ [0-9]+ ';'
checkhr2(ScanDecimalDigits());
if (_chLookahead != L';')
{
STATE(9);
}
entityLen = _pInput->getTokenLength() - _lEntityPos;
getToken(&t, &len);
checkhr2(DecimalToUnicode(t + _lEntityPos + 2, entityLen - 2, _wcEntityValue));
lLen = 2;
_nToken = XML_NUMENTITYREF;
GOTOSTART(10); // have to use GOTOSTART() because we want to use the values of t and len
break;
case 5: // '&#X' ^ [0-9a-fA-F]+
checkhr2(ScanHexDigits());
if (_chLookahead != L';')
{
STATE(9);
}
entityLen = _pInput->getTokenLength() - _lEntityPos;
getToken(&t, &len);
checkhr2(HexToUnicode(t + _lEntityPos + 3, entityLen - 3, _wcEntityValue));
lLen = 3;
_nToken = XML_HEXENTITYREF;
GOTOSTART(10); // have to use GOTOSTART() because we want to use the values of t and len
break;
// ------------- Named Entity References --------------------
case 6: // '&' Name ^ ';'
checkeof(_chLookahead, XML_E_UNEXPECTEDEOF);
if (_chLookahead != L';')
{
STATE(9);
}
// If parseName found a namespace then we need to calculate the
// real nslen taking the pending PC data and '&' into account
// and remember this in case we have to return the PCDATA.
_nEntityNSLen = (_lNslen > 0) ? _lNslen - _lEntityPos - 1 : 0;
_fUsingBuffer = false;
entityLen = _pInput->getTokenLength() - _lEntityPos;
getToken(&t, &len);
if (0 != (_wcEntityValue = BuiltinEntity(t + _lEntityPos + 1, entityLen - 1))) //||
//(_fIE4Quirks && 0xFFFF != (_wcEntityValue = LookupBuiltinEntity(t + _lEntityPos + 1, entityLen - 1))))
{
lLen = 1;
_nToken = XML_BUILTINENTITYREF;
GOTOSTART(10); // have to use GOTOSTART() because we want to use the values of t and len
}
else //xiaoyu : Fusion XML Parser does not support external ref,
// so, if it is not a builtIn ref, we would return error
return XML_E_MISSINGSEMICOLON;
break;
//xiaoyu : Fusion XML Parser does not support external ref
/*
if (_nPreToken != XML_PENDING)
{
// Return previous token (XML_PCDATA or XML_WHITESPACE)
_lLengthDelta = -entityLen;
_lMarkDelta = entityLen - 1; // don't include '&' in _nToken.
_nToken = _nPreToken;
STATE(7);
}
mark(entityLen-1); // don't include '&' in _nToken.
_sSubState = 7;
// fall through
case 7:
ADVANCE; // soak up the ';'
_nToken = XML_ENTITYREF;
_lNslen = _nEntityNSLen;
_lLengthDelta = -1; // don't include the ';'
STATE(8); // return token and resume in state 8.
break;
*/
case 8:
mark();
checkhr2(pop());
return S_OK;
/*
case 9:
// Soft entity handling - we just continue with PCDATA in
// this case.
if (_fFloatingAmp)
{
if (_fUsingBuffer)
{
// this in case we are normalizing white space. In this case
// we have to copy what we have so far to the normalized buffer.
long endpos = _pInput->getTokenLength();
const WCHAR* t; long len;
getToken(&t, &len);
for (long i = _lEntityPos; i < endpos; i++)
PushChar(t[i]);
}
_fWhitespace = false;
checkhr2(pop());
return S_OK;
}
else
return XML_E_MISSINGSEMICOLON;
break;
*/
case 10:
// Return the text before builtin or char entityref as XML_PCDATA
if (_nPreToken)
{
_nPreToken = _nToken;
_nToken = XML_PCDATA;
_lLengthDelta = -entityLen;
_lMarkDelta = entityLen - lLen; // don't include '&' in _nToken.
STATE(11); // return token and resume in state 12.
}
else
{
_nPreToken = _nToken;
mark(entityLen - lLen);
GOTOSTART(11);
}
break;
case 11:
// push the builtin entity
_fUsingBuffer = true;
PushChar(_wcEntityValue);
_nToken = _nPreToken;
STATE(12); // return token and resume in state 12.
break;
case 12:
ADVANCE; // soak up the ';'
STATE(8); // resume in state 8.
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::pushTable(short substate, const StateEntry* table, DWORD le)
{
HRESULT hr = S_OK;
checkhr2(push(&XMLStream::parseTable, substate));
_pTable = table;
UNUSED(le);
//_lEOFError = le;
return hr;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::push(StateFunc f, short s)
{
StateInfo* pSI = _pStack.push();
if (pSI == NULL)
return E_OUTOFMEMORY;
pSI->_sSubState = s;
pSI->_fnState = _fnState;
pSI->_pTable = _pTable;
pSI->_cStreamDepth = _cStreamDepth;
_sSubState = 0;
_fnState = f;
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::pop(bool boundary)
{
StateInfo* pSI = _pStack.peek();
// prefix bug fix : xiaoyuw@08/29/00
ASSERT_NTC(pSI != NULL);
if (_fDTD &&
! (_fParsingAttDef) && boundary && _cStreamDepth != pSI->_cStreamDepth) // _fParsingNames ||
{
// If we are in a PE and we are popping out to a state that is NOT in a PE
// and this is a pop where we need to check this condition, then return an error.
// For example, the following is not well formed because the parameter entity
// pops us out of the ContentModel state in which the PE was found:
// <!DOCTYPE foo [
// <!ENTITY % foo "a)">
// <!ELEMENT bar ( %foo; >
// ]>...
return XML_E_PE_NESTING;
}
_fnState = pSI->_fnState;
_sSubState = pSI->_sSubState;
_pTable = pSI->_pTable;
//_lEOFError = pSI->_lEOFError;
_pStack.pop();
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::switchTo(StateFunc f)
{
HRESULT hr;
// Make sure we keep the old stream depth.
StateInfo* pSI = _pStack.peek();
// prefix bug fix : xiaoyuw@08/29/00
ASSERT_NTC(pSI != NULL);
int currentDepth = _cStreamDepth;
_cStreamDepth = pSI->_cStreamDepth;
checkhr2(pop(false));
checkhr2(push(f,_sSubState)); // keep return to _sSubState the same
_cStreamDepth = currentDepth;
return (this->*f)();
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseCondSect()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
ADVANCE; // soak up the '[' character
//if (_fFoundPEREf) return S_OK;
_sSubState = 1;
// fall through
case 1: // now match magic '[CDATA[' sequence.
checkeof(_chLookahead, XML_E_UNCLOSEDMARKUPDECL);
if (_chLookahead == L'C')
{
_pchCDataState = g_pstrCDATA;
STATE(5); // goto state 5
}
_sSubState = 2; // must be IGNORE, INCLUDE or %pe;
// fall through
case 2: // must be DTD markup declaration
// '<![' ^ S? ('INCLUDE' | 'IGNORE' | %pe;) S? [...]]> or
// skip optional whitespace
//if (_fInternalSubset)
// return XML_E_CONDSECTINSUBSET;
checkeof(_chLookahead, XML_E_EXPECTINGOPENBRACKET);
checkhr2(push(&XMLStream::skipWhiteSpace, 3));
return skipWhiteSpace(); // must return because of %pe;
case 3:
checkeof(_chLookahead, XML_E_UNCLOSEDMARKUPDECL);
checkhr2(push(&XMLStream::parseName,4));
return parseName();
case 4: // scanned 'INCLUDE' or 'IGNORE'
{
const WCHAR* t = NULL;
long len = 0;
getToken(&t,&len);
//if (StringEquals(L"IGNORE",t,len,false))
//{
// return switchTo(&XMLStream::parseIgnoreSect);
//}
//else if (StringEquals(L"INCLUDE",t,len,false))
//{
// return switchTo(&XMLStream::parseIncludeSect);
//}
//else
return XML_E_BADENDCONDSECT;
}
break;
case 5: // parse CDATA name
while (*_pchCDataState != 0 && _chLookahead == *_pchCDataState && ! _fEOF)
{
ADVANCE; // advance first, before incrementing _pchCDataState
_pchCDataState++; // so that this state is re-entrant in the E_PENDING case.
checkeof(_chLookahead, XML_E_UNCLOSEDMARKUPDECL);
}
if (*_pchCDataState != 0)
{
// must be INCLUDE or IGNORE section so go to state 2.
_sSubState = 2;
}
else if (_chLookahead != L'[')
{
return XML_E_EXPECTINGOPENBRACKET;
}
else if (_fDTD)
return XML_E_CDATAINVALID;
else
return switchTo(&XMLStream::parseCData);
return S_OK;
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseCData()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0:
ADVANCE; // soak up the '[' character.
mark(); // don't include 'CDATA[' in CDATA text
_sSubState = 1;
// fall through
case 1:
while (_chLookahead != L']' && ! _fEOF)
{
// scanPCData will stop when it sees a ']' character.
hr = _pInput->scanPCData(&_chLookahead, &_fWhitespace);
if (FAILED(hr))
{
if (hr == E_PENDING)
{
hr = S_OK;
ADVANCE;
}
return hr;
}
}
checkeof(_chLookahead, XML_E_UNCLOSEDCDATA);
_sSubState = 2;
// fall through
case 2:
ADVANCE; // soak up first L']' character.
checkeof(_chLookahead, XML_E_UNCLOSEDCDATA);
if (_chLookahead != L']')
{
// must have been floating ']' character, so
// return to state 1.
STATE(1);
}
_sSubState = 3;
// fall through
case 3:
ADVANCE; // soak up second ']' character.
checkeof(_chLookahead, XML_E_UNCLOSEDCDATA);
if (_chLookahead == L']')
{
// Ah, an extra ']' character, tricky !!
// In this case we stay in state 3 until we find a non ']' character
// so you can terminate a CDATA section with ']]]]]]]]]]]]]]]]>'
// and everying except the final ']]>' is treated as CDATA.
STATE(3);
}
else if (_chLookahead != L'>')
{
// must have been floating "]]" pair, so
// return to state 1.
STATE(1);
}
_sSubState = 4;
// fall through
case 4:
ADVANCE; // soak up the '>'
_nToken = XML_CDATA;
_lLengthDelta = -3; // don't include terminating ']]>' in text.
checkhr2(pop()); // return to parseContent.
return S_OK;
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseEquals()
{
HRESULT hr = S_OK;
switch (_sSubState)
{
case 0: // Eq ::= S? '=' S?
if (ISWHITESPACE(_chLookahead))
{
// allow whitespace between attribute and '='
checkhr2(push(&XMLStream::skipWhiteSpace, 1));
checkhr2( skipWhiteSpace() );
}
_sSubState = 1;
// fall through
case 1:
if (_chLookahead != L'=')
{
return XML_E_MISSINGEQUALS;
}
ADVANCE;
if (ISWHITESPACE(_chLookahead))
{
// allow whitespace between '=' and attribute value.
checkhr2(push(&XMLStream::skipWhiteSpace, 2));
checkhr2( skipWhiteSpace() );
}
_sSubState = 2;
// fall through
case 2:
checkhr2(pop(false));
break;
default:
INTERNALERROR;
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::parseTable()
{
HRESULT hr = S_OK;
while (hr == S_OK && _nToken == XML_PENDING)
{
const StateEntry* pSE = &_pTable[_sSubState];
DWORD newState = pSE->_sGoto;
switch (pSE->_sOp)
{
case OP_WS:
//checkeof(_chLookahead, _lEOFError);
if (! ISWHITESPACE(_chLookahead))
return XML_E_MISSINGWHITESPACE;
// fall through
case OP_OWS:
//checkeof(_chLookahead, _lEOFError);
checkhr2(push(&XMLStream::skipWhiteSpace, (short)newState));
checkhr2(skipWhiteSpace());
//if (_fFoundPEREf) return XML_E_FOUNDPEREF;
break;
case OP_CHARWS:
//if (_fFoundPEREf) return S_OK;
mark();
//checkeof(_chLookahead, _lEOFError);
if (_chLookahead == pSE->_pch[0])
{
ADVANCE;
newState = pSE->_sGoto;
_nToken = pSE->_lDelta;
}
else if (! ISWHITESPACE(_chLookahead))
{
return XML_E_WHITESPACEORQUESTIONMARK;
}
else
newState = pSE->_sArg1;
break;
case OP_CHAR:
//if (_fFoundPEREf) return S_OK;
mark();
case OP_CHAR2:
//if (_fFoundPEREf) return S_OK;
//checkeof(_chLookahead, _lEOFError);
if (_chLookahead == pSE->_pch[0])
{
ADVANCE;
newState = pSE->_sGoto;
_nToken = pSE->_lDelta;
//if (_nToken == XML_GROUP)
//_nAttrType = XMLTYPE_NMTOKEN;
}
else
{
newState = pSE->_sArg1;
if (newState >= XML_E_PARSEERRORBASE &&
ISWHITESPACE(_chLookahead))
return XML_E_UNEXPECTED_WHITESPACE;
}
break;
case OP_PEEK:
//if (_fFoundPEREf) return S_OK;
//checkeof(_chLookahead, _lEOFError);
if (_chLookahead == pSE->_pch[0])
{
newState = pSE->_sGoto;
}
else
newState = pSE->_sArg1;
break;
case OP_NAME:
//if (_fFoundPEREf) return S_OK;
//checkeof(_chLookahead, _lEOFError);
checkhr2(push(&XMLStream::parseName, (short)newState));
checkhr2(parseName());
break;
case OP_TOKEN:
_nToken = pSE->_sArg1;
_lLengthDelta = pSE->_lDelta;
break;
case OP_POP:
_lLengthDelta = pSE->_lDelta;
if (_lLengthDelta == 0) mark();
// The _lDelta field contains a boolean flag to tell us whether this
// pop needs to check for parameter entity boundary or not.
checkhr2(pop(pSE->_lDelta == 0)); // we're done !
_nToken = pSE->_sArg1;
//_nAttrType = XMLTYPE_CDATA;
return S_OK;
case OP_STRCMP:
{
const WCHAR* t = NULL;
long len = 0;
getToken(&t,&len);
long delta = (pSE->_lDelta < 0) ? pSE->_lDelta : 0;
//if (StringEquals(pSE->_pch,t,len+delta,_fCaseInsensitive))
if (::FusionpCompareStrings(pSE->_pch, len+delta, t, len+delta, _fCaseInsensitive)==0)
{
if (pSE->_lDelta > 0)
{
_nToken = pSE->_lDelta;
_lLengthDelta = 0;
}
newState = pSE->_sGoto;
}
else
newState = pSE->_sArg1;
}
break;
case OP_COMMENT:
return push(&XMLStream::parseComment, (short)newState);
break;
case OP_CONDSECT:
//if (_fFoundPEREf) return S_OK;
// parse <![CDATA[...]]> or <![IGNORE[...]]>
return push(&XMLStream::parseCondSect, (short)newState);
case OP_SNCHAR:
//checkeof(_chLookahead, _lEOFError);
if (isStartNameChar(_chLookahead))
{
newState = pSE->_sGoto;
}
else
newState = pSE->_sArg1;
break;
case OP_EQUALS:
//if (_fFoundPEREf) return S_OK;
//checkeof(_chLookahead, _lEOFError);
checkhr2(push(&XMLStream::parseEquals, (short)newState));
checkhr2(parseEquals());
break;
case OP_ENCODING:
{
const WCHAR* t = NULL; // prefix bug fix, xiaoyuw@08/29/00
long len = 0; // prefix bug fix, xiaoyuw@08/29/00
_pInput->getToken(&t,&len);
hr = _pInput->switchEncoding(t, len+pSE->_lDelta);
}
break;
case OP_ATTRVAL:
//if (_fFoundPEREf) return S_OK;
if (_chLookahead != L'"' && _chLookahead != L'\'')
{
return XML_E_MISSINGQUOTE;
}
_chTerminator = _chLookahead;
ADVANCE;
mark();
_fReturnAttributeValue = (pSE->_sArg1 == 1);
//checkeof(_chLookahead, _lEOFError);
return push(&XMLStream::parseAttrValue, (short)newState);
break;
} // end of switch
if (_fnState != &XMLStream::parseTable)
return S_OK;
if (newState >= XML_E_PARSEERRORBASE)
return (HRESULT)newState;
else
_sSubState = (short)newState;
} // end of while
if (_nToken == XMLStream::XML_ENDDECL)
{
return _pInput->UnFreeze();
}
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::_PushChar(WCHAR ch)
{
// buffer needs to grow.
long newsize = (_lBufSize+512)*2 ;
WCHAR* newbuf = NEW ( WCHAR[newsize]);
if (newbuf == NULL)
return E_OUTOFMEMORY;
if (_pchBuffer != NULL){
::memcpy(newbuf, _pchBuffer, sizeof(WCHAR)*_lBufLen);
delete[] _pchBuffer;
}
_lBufSize = newsize;
_pchBuffer = newbuf;
_pchBuffer[_lBufLen++] = ch;
return S_OK;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::AdvanceTo(short substate)
{
// This method combines and advance with a state switch in one
// atomic operation that handles the E_PENDING case properly.
_sSubState = substate;
//HRESULT hr = (!_fDTD) ? _pInput->nextChar(&_chLookahead, &_fEOF) : DTDAdvance();
HRESULT hr = _pInput->nextChar(&_chLookahead, &_fEOF) ;
if (hr != S_OK && (hr == E_PENDING || hr == E_DATA_AVAILABLE || hr == E_DATA_REALLOCATE || hr == XML_E_FOUNDPEREF))
{
// Then we must do an advance next time around before continuing
// with previous state. Push will save the _sSubState and return
// to it.
push(&XMLStream::firstAdvance,substate);
}
return hr;
}
////////////////////////////////////////////////////////////////////////
bool
XMLStream::PreEntityText()
{
// This is a helper function that calculates whether or not to
// return some PCDATA or WHITEPACE before an entity reference.
if (_fPCDataPending)
{
// return what we have so far.
//if (_fWhitespace && ! _fIE4Quirks) // in IE4 mode we do not have WHITESPACE nodes
// and entities are always resolved, so return
// the leading whitespace as PCDATA.
if (_fWhitespace )
_nToken = XML_WHITESPACE;
else
_nToken = XML_PCDATA;
long entityLen = _pInput->getTokenLength() - _lEntityPos;
_lLengthDelta = -entityLen;
_lMarkDelta = entityLen;
_fPCDataPending = false;
_fWhitespace = true;
return true;
}
return false;
}
////////////////////////////////////////////////////////////////////////
HRESULT
XMLStream::ErrorCallback(HRESULT hr)
{
if (hr == E_DATA_AVAILABLE)
hr = XML_DATAAVAILABLE;
else if (hr == E_DATA_REALLOCATE)
hr = XML_DATAREALLOCATE;
return _pXMLParser->ErrorCallback(hr);
}
Reference in a new issue Copy permalink