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2062 lines
60 KiB
2062 lines
60 KiB
/*
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*
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* Copyright (c) 1998,1999 Microsoft Corporation. All rights reserved.
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* EXEMPT: copyright change only, no build required
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*
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*/
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#include "stdinc.h"
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#include "core.hxx"
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#pragma hdrstop
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#include "xmlhelper.hxx"
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#include "xmlstream.hxx"
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#include "bufferedstream.hxx"
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#include "xmlparser.hxx"
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const long BLOCK_SIZE = 512;
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const long STACK_INCREMENT = 10;
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// macros used in this file
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#define INTERNALERROR return XML_E_INTERNALERROR;
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#define checkeof(a,b) if (_fEOF) return b;
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#define ADVANCE hr = _pInput->nextChar(&_chLookahead, &_fEOF); if (hr != S_OK) return hr;
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#define ADVANCETO(a) hr = AdvanceTo(a); if (hr != S_OK) return hr;
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#define ISWHITESPACE(ch) _pInput->isWhiteSpace(ch)
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#define STATE(state) { _sSubState = state; return S_OK; }
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#define GOTOSTART(state) { _sSubState = state; goto Start; }
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#define DELAYMARK(hr) ((hr == S_OK) || ((hr >= static_cast<HRESULT>(XML_E_TOKEN_ERROR)) && (hr < static_cast<HRESULT>(XML_E_LASTERROR))))
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#define XML_E_FOUNDPEREF 0x8000e5ff
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// The tokenizer has special handling for the following attribute types.
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// These values are derived from the XML_AT_XXXX types provided in SetType
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// and are also calculated during parsing of an ATTLIST for parsing of
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// default values.
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typedef enum
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{
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XMLTYPE_CDATA, // the default.
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XMLTYPE_NAME,
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XMLTYPE_NAMES,
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XMLTYPE_NMTOKEN,
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XMLTYPE_NMTOKENS,
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} XML_ATTRIBUTE_TYPE;
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//==============================================================================
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// xiaoyu : a simplified table : only deal with comments, not include DOCTYPE, NotationDecl, EntityDecl and ElementDecl.
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// Parse an <!^xxxxxxxx Declaration.
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const StateEntry g_DeclarationTable[] =
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{
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// 0 '<' ^ '!'
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{ OP_CHAR, L"!", 1, (DWORD)XML_E_INTERNALERROR, },
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// 1 '<!' ^ '-'
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{ OP_PEEK, L"-", 2, 4, 0 },
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// 2 '<!-'
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{ OP_COMMENT, NULL, 3, },
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// 3 done !!
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{ OP_POP, NULL, 0, 0 },
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// 4 '<!' ^ '['
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{ OP_PEEK, L"[", 5, (DWORD)XML_E_BADDECLNAME, 0 }, //xiaoyu : we do not consider others <!XXX, which is a DTD subset
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// 5 '<![...'
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{ OP_CONDSECT, NULL, 3, }
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};
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//==============================================================================
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// Parse an <?xml or <?xml:namespace declaration.
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const StateEntry g_XMLDeclarationTable[] =
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{
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// 0 must be xml declaration - and not xml namespace declaration
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{ OP_TOKEN, NULL, 1, XML_XMLDECL, 0 },
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// 1 '<?xml' ^ S version="1.0" ...
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{ OP_OWS, NULL, 2 },
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// 2 '<?xml' S ^ version="1.0" ...
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{ OP_SNCHAR, NULL, 3, (DWORD)XML_E_XMLDECLSYNTAX },
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// 3 '<?xml' S ^ version="1.0" ...
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{ OP_NAME, NULL, 4, },
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// 4 '<?xml' S version^="1.0" ...
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{ OP_STRCMP, L"version", 5, 12, XML_VERSION },
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// 5
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{ OP_EQUALS, NULL, 6 },
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// 6 '<?xml' S version = ^ "1.0" ...
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{ OP_ATTRVAL, NULL, 32, 0},
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// 7 '<?xml' S version '=' value ^
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{ OP_TOKEN, NULL, 8, XML_PCDATA, -1 },
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// 8 ^ are we done ?
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{ OP_CHARWS, L"?", 28, 9 }, // must be '?' or whitespace.
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// 9 ^ S? [encoding|standalone] '?>'
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{ OP_OWS, NULL, 10 },
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// 10
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{ OP_CHAR, L"?", 28, 33 }, // may have '?' after skipping whitespace.
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// 11 ^ [encoding|standalone] '?>'
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{ OP_NAME, NULL, 12, },
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// 12
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{ OP_STRCMP, L"standalone", 23, 13, XML_STANDALONE },
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// 13
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{ OP_STRCMP, L"encoding", 14, (DWORD)XML_E_UNEXPECTED_ATTRIBUTE, XML_ENCODING },
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// 14
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{ OP_EQUALS, NULL, 15 },
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// 15
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{ OP_ATTRVAL, NULL, 16, 0 },
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// 16
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{ OP_ENCODING, NULL, 17, 0, -1 },
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// 17
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{ OP_TOKEN, NULL, 18, XML_PCDATA, -1 },
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// 18 ^ are we done ?
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{ OP_CHARWS, L"?", 28, 19 }, // must be '?' or whitespace.
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// 19 ^ S? standalone '?>'
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{ OP_OWS, NULL, 20 },
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// 20
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{ OP_CHAR, L"?", 28, 34 }, // may have '?' after skipping whitespace.
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// 21 ^ standalone '?>'
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{ OP_NAME, NULL, 22, },
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// 22
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{ OP_STRCMP, L"standalone", 23, (DWORD)XML_E_UNEXPECTED_ATTRIBUTE,
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XML_STANDALONE },
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// 23
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{ OP_EQUALS, NULL, 24 },
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// 24
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{ OP_ATTRVAL, NULL, 25, 0 },
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// 25
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{ OP_STRCMP, L"yes", 31, 30, -1 },
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// 26 <?xml ....... ^ '?>' -- now expecting just the closing '?>' chars
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{ OP_OWS, NULL, 27 },
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// 27
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{ OP_CHAR, L"?", 28, (DWORD)XML_E_XMLDECLSYNTAX, 0 },
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// 28
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{ OP_CHAR, L">", 29, (DWORD)XML_E_XMLDECLSYNTAX, 0 },
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// 29 done !!
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{ OP_POP, NULL, 0, XMLStream::XML_ENDXMLDECL },
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//----------------------- check standalone values "yes" or "no"
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// 30
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{ OP_STRCMP, L"no", 31, (DWORD)XML_E_INVALID_STANDALONE, -1 },
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// 31
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{ OP_TOKEN, NULL, 26, XML_PCDATA, -1 },
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//----------------------- check version = "1.0"
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// 32
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{ OP_STRCMP, L"1.0", 7, (DWORD)XML_E_INVALID_VERSION, -1 },
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// 33
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{ OP_SNCHAR, NULL, 11, (DWORD)XML_E_XMLDECLSYNTAX },
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// 34
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{ OP_SNCHAR, NULL, 21, (DWORD)XML_E_XMLDECLSYNTAX },
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};
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static const WCHAR* g_pstrCDATA = L"CDATA";
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////////////////////////////////////////////////////////////////////////
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XMLStream::XMLStream(XMLParser * pXMLParser)
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: _pStack(1), _pStreams(1)
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{
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// precondition: 'func' is never NULL
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_fnState = &XMLStream::init;
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_pInput = NULL;
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_pchBuffer = NULL;
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_fDTD = false;
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//_fInternalSubset = false;
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_cStreamDepth = 0;
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_pXMLParser = pXMLParser;
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_init();
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SetFlags(0);
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::init()
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{
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HRESULT hr = S_OK;
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if (_pInput == NULL)
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{
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//haven' called put-stream yet
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return XML_E_ENDOFINPUT;
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}
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_init();
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_fnState = &XMLStream::parseContent;
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checkhr2(push(&XMLStream::firstAdvance,0));
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return hr;
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}
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////////////////////////////////////////////////////////////////////////
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void
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XMLStream::_init()
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{
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_fEOF = false;
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_chLookahead = 0;
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_nToken = XML_PENDING;
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_chTerminator = 0;
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_lLengthDelta = 0;
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_lNslen = _lNssep = 0;
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_sSubState = 0;
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_lMarkDelta = 0;
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_fUsingBuffer = false;
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_lBufLen = 0;
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delete[] _pchBuffer;
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_pchBuffer = NULL;
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_lBufSize = 0;
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_fDelayMark = false;
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_fFoundWhitespace = false;
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_fFoundNonWhitespace = false;
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_fWasUsingBuffer = false;
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_chNextLookahead = 0;
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_fParsingAttDef = false;
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_fFoundFirstElement = false;
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_fReturnAttributeValue = true;
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//_fHandlePE = true;
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_pTable = NULL;
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}
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////////////////////////////////////////////////////////////////////////
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XMLStream::~XMLStream()
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{
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delete _pInput;
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delete[] _pchBuffer;
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_pInput = NULL;
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_pchBuffer = NULL;
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InputInfo* pi = _pStreams.peek();
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while (pi != NULL)
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{
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// Previous stream is finished also, so
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// pop it and continue on.
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delete pi->_pInput;
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pi = _pStreams.pop();
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}
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::AppendData(
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/* [in] */ const BYTE *buffer,
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/* [in] */ long length,
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/* [in] */ BOOL last)
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{
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if (_pInput == NULL)
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{
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_pInput = NEW (BufferedStream(this));
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if (_pInput == NULL)
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return E_OUTOFMEMORY;
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init();
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}
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HRESULT hr = _pInput->AppendData(buffer, length, last);
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return hr;
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::Reset( void)
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{
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init();
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delete _pInput;
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_pInput = NULL;
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return S_OK;
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::PushStream(
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/* [unique][in] */ EncodingStream *p,
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/* [in] */ bool fExternalPE)
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{
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UNUSED(fExternalPE);
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if (_pStreams.used() == 0 && _pInput == NULL)
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init();
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_cStreamDepth++;
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if (_fDelayMark && _pInput != NULL)
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{
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mark(_lMarkDelta);
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_lMarkDelta = 0;
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_fDelayMark = false;
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}
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// Save current input stream.
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if (_pInput != NULL)
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{
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InputInfo* pi = _pStreams.push();
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if (pi == NULL)
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return E_OUTOFMEMORY;
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pi->_pInput = _pInput;
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pi->_chLookahead = _chLookahead;
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//pi->_fPE = true; // assume this is a parameter entity.
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//pi->_fExternalPE = fExternalPE;
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//pi->_fInternalSubset = _fInternalSubset;
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if (&XMLStream::skipWhiteSpace == _fnState && _pStack.used() > 0) {
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StateInfo* pSI = _pStack.peek();
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pi->_fnState = pSI->_fnState;
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}
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else
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pi->_fnState = _fnState;
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// and prepend pe text with space as per xml spec.
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_chLookahead = L' ';
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_chNextLookahead = _chLookahead;
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_pInput = NULL;
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}
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_pInput = NEW (BufferedStream(this));
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if (_pInput == NULL)
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return E_OUTOFMEMORY;
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if (p != NULL)
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_pInput->Load(p);
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if (_chLookahead == L' ')
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_pInput->setWhiteSpace(); // _pInput didn't see this space char.
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return S_OK;
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::PopStream()
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{
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// This method has to pop all streams until it finds a stream that
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// can deliver the next _chLookahead character.
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HRESULT hr = S_OK;
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InputInfo* pi = NULL;
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pi = _pStreams.peek();
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if (pi == NULL) return S_FALSE;
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_chLookahead = pi->_chLookahead;
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// Found previous stream, so we can continue.
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_fEOF = false;
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// Ok, so we actually got the next character, so
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// we can now safely throw away the previous
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// lookahead character and return the next
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// non-whitespace character from the previous stream.
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delete _pInput;
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_pInput = pi->_pInput;
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if (_chLookahead == L' ')
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_pInput->setWhiteSpace();
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// BUGBUG: we need to clear this so that the parser does not
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// try and pop a download in the internalPE case (when handling XML_E_ENDOFINPUT in run())
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// but this means that internal PEs never get XMLNF_ENDENTITY notifications generated.
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// The DTDNodeFactory requires this behaviour currently (incorrectly)
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_pStreams.pop();
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_cStreamDepth--;
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return hr;
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}
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////////////////////////////////////////////////////////////////////////
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HRESULT
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XMLStream::GetNextToken(
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/* [out] */ DWORD *t,
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/* [out] */ const WCHAR **text,
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/* [out] */ long *length,
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/* [out] */ long *nslen)
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{
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HRESULT hr;
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if (_fDTD)
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return E_UNEXPECTED;
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if (_fDelayMark)
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{
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mark(_lMarkDelta);
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_lMarkDelta = 0;
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_fDelayMark = false;
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}
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hr = (this->*_fnState)();
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while (hr == S_OK && _nToken == XML_PENDING)
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hr = (this->*_fnState)();
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if (hr == S_OK)
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*t = _nToken;
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else if (hr == E_PENDING) {
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*t = XML_PENDING;
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*length = *nslen = 0;
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*text = NULL;
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goto CleanUp;
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}
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else
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*t = XML_PENDING;
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// At this point hr == S_OK or it is some error. So we
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// want to return the text of the current token, since this
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// is useful in both cases.
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if (! _fUsingBuffer)
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{
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getToken(text,length);
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if (_lLengthDelta != 0)
|
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{ // xiaoyu : IF STOP WITHIN, HAVE A CAREFUL LOOK : in ParsingAttributeValue, we have to read ahead of one char '"'
|
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*length += _lLengthDelta;
|
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_lLengthDelta = 0;
|
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}
|
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// This can only happen in the context of a DTD.
|
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// if (_fWasUsingBuffer)
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// {
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// _fUsingBuffer = _fWasUsingBuffer;
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// _fWasUsingBuffer = false;
|
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// }
|
|
}
|
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else
|
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{ // xiaoyu : IF STOP WITHIN, HAVE A CAREFUL LOOK
|
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*text = _pchBuffer;
|
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*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) *buf = NULL;
|
|
if (len) *len = 0;
|
|
if (startpos) *startpos = 0;
|
|
|
|
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
|
|
checkhr2(_pInput->getToken(&t,&len));
|
|
checkhr2(_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 == static_cast<HRESULT>(E_PENDING)) ||
|
|
(hr == static_cast<HRESULT>(E_DATA_AVAILABLE)) ||
|
|
(hr == static_cast<HRESULT>(E_DATA_REALLOCATE)) ||
|
|
(hr == static_cast<HRESULT>(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 == static_cast<HRESULT>(E_DATA_AVAILABLE))
|
|
hr = static_cast<HRESULT>(XML_DATAAVAILABLE);
|
|
else if (hr == static_cast<HRESULT>(E_DATA_REALLOCATE))
|
|
hr = static_cast<HRESULT>(XML_DATAREALLOCATE);
|
|
return _pXMLParser->ErrorCallback(hr);
|
|
}
|