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// HtmParse.h : Declaration of the CHtmParse
// Copyright (c)1997-1999 Microsoft Corporation, All Rights Reserved
#ifndef __HTMPARSE_H_
#define __HTMPARSE_H_
#include "resource.h" // main symbols
#include "guids.h"
#include "lexhtml.h"
#include "token.h"
#define tokClsIgnore tokclsError // if you don't want to use the token class info in the rule, use this.
#define cbBufPadding 0x800 // we allocate this much extra memory so that subsequent reallocs are saved
#define MIN_TOK 100 // init size for token stack to keep track of nested blocks. e.g. <table>...<table>...</table>...</table>
// init value for number of <TBODY> tags
#define cTBodyInit 20 // init size of nested TBODY's. we start with the assumption that we won't have more than these many nested TBODYs and reallocate if needed.
#define cchspBlockMax 20 // size of spacing block index. we can't have more than 20 digit number
// state flags for space preservation
#define initState 0x0000
#define inChar 0x0001
#define inSpace 0x0002
#define inEOL 0x0003
#define inTab 0x0004
#define inTagOpen 0x0005
#define inTagClose 0x0006
#define inTagEq 0x0007
// used by space preservation in comments
#define chCommentSp '2'
#define chCommentEOL '3'
#define chCommentTab '4'
// Specializations for hrTokenizeAndParse
#define PARSE_SPECIAL_NONE 0x00000000
#define PARSE_SPECIAL_HEAD_ONLY 0x00000001
/////////////////////////////////////////////////////////////////////////////
// CTriEditParse
class ATL_NO_VTABLE CTriEditParse : public CComObjectRootEx<CComSingleThreadModel>, public CComCoClass<CTriEditParse, &CLSID_TriEditParse>, public ITokenGen{public: CTriEditParse(); ~CTriEditParse();
DECLARE_REGISTRY_RESOURCEID(IDR_TRIEDITPARSE)
BEGIN_COM_MAP(CTriEditParse) COM_INTERFACE_ENTRY_IID(IID_ITokenGen, ITokenGen)END_COM_MAP()
// ITokenGen // copied from CColorHtml
public: STDMETHOD(NextToken)(LPCWSTR pszText, UINT cbText, UINT* pcbCur, DWORD * pLXS, TXTB* pToken); STDMETHOD(hrTokenizeAndParse)(HGLOBAL hOld, HGLOBAL *phNew, IStream *pStmNew, DWORD dwFlags, FilterMode mode, int cbSizeIn, UINT* pcbSizeOut, IUnknown* pUnkTrident, HGLOBAL *phgTokArray, UINT *pcMaxToken, HGLOBAL *phgDocRestore, BSTR bstrBaseURL, DWORD dwReserved);
private: static long m_bInit; PSUBLANG m_rgSublang;
IUnknown *m_pUnkTrident; // we cache it in hrTokenizeAndParse()
HGLOBAL m_hgDocRestore; // we cache it in hrTokenizeAndParse()
LPWSTR m_bstrBaseURL;
// flag used to remember if we have a unicode file that has 0xff,0xfe at the begining
BOOL m_fUnicodeFile;
// following m_c's keep track of number of respective tags found
// during parsing. e.g. m_cHtml will keep track of count of
// <html> tags
INT m_cHtml; INT m_cDTC; INT m_cObj; INT m_cSSSIn; INT m_cSSSOut; INT m_cNbsp; INT m_cHdr; INT m_cFtr; INT m_cObjIn; INT m_cComment; INT m_cAImgLink;
UINT m_cMaxToken; // Max of token array (pTokArray)
BOOL m_fEndTagFound; // end tag found
INT m_iControl; // index in applet collection
BOOL m_fSpecialSSS; // found special SSS <%@....%>
// used to save space preservation info
HGLOBAL m_hgspInfo; WORD *m_pspInfo; WORD *m_pspInfoOut; WORD *m_pspInfoOutStart; WORD *m_pspInfoCur; UINT m_ichStartSP; // save all prev spacing info at this ich
INT m_ispInfoBase; INT m_ispInfoIn; INT m_ispInfoOut; INT m_iArrayspLast; INT m_ispInfoBlock; INT m_cchspInfoTotal; BOOL m_fDontDeccItem; // we don't have counters for items that we don't process, so we use this to preserve the total count
// used by <TBODY> code.
// Trident puts in extra <tbody></tbody> tags inside table
// and filtering tries to remove them.
HGLOBAL m_hgTBodyStack; UINT *m_pTBodyStack; INT m_iMaxTBody; INT m_iTBodyMax;
// used by Page Transition DTC code
// page transition dtc is a special case in filtering because
// we have to maintain its location inside the head section.
BOOL m_fInHdrIn; INT m_cchPTDTCObj; INT m_ichPTDTC; INT m_cchPTDTC; INT m_indexBeginBody; INT m_indexEndBody; WCHAR *m_pPTDTC; HGLOBAL m_hgPTDTC;
// used by the code that recreates our own pre-Body part of the document
BOOL m_fHasTitleIn; INT m_indexTitleIn; INT m_ichTitleIn; INT m_cchTitleIn; INT m_ichBeginBodyTagIn; INT m_indexHttpEquivIn; INT m_ichBeginHeadTagIn;
// used by APPLET pretty-printing code
int m_cAppletIn; int m_cAppletOut;
// used to keep track of multiple occurances of BODY, HTML, TITLE & HEAD tags
int m_cBodyTags; int m_cHtmlTags; int m_cTitleTags; int m_cHeadTags;
void SetTable(DWORD lxs); void InitSublanguages(); void PreProcessToken(TOKSTRUCT *pTokArray, INT *pitokCur, LPWSTR pszText, UINT cbCur, TXTB token, DWORD lxs, INT tagID, FilterMode mode); void PostProcessToken(OLECHAR *pwOld, OLECHAR *pwNew, UINT *pcbNew, UINT cbCur, UINT cbCurSav, TXTB token, FilterMode mode, DWORD lxs, DWORD dwFlags); int ValidateTag(LPWSTR pszText); int GetTagID(LPWSTR pszText, TXTB token); HRESULT hrMarkSpacing(WCHAR *pwOld, UINT cbCur, INT *pchStartSP); void SetSPInfoState(WORD inState, WORD *pdwState, WORD *pdwStatePrev, BOOL *pfSave); BOOL FRestoreSpacing(LPWSTR pwNew, LPWSTR pwOld, UINT *pichNewCur, INT *pcchwspInfo, INT cchRange, INT ichtoktagStart, BOOL fLookback, INT index); HRESULT hrMarkOrdering(WCHAR *pwOld, TOKSTRUCT *pTokArray, INT iArrayStart, INT iArrayEnd, UINT cbCur, INT *pichStartOR); BOOL FRestoreOrder(WCHAR *pwNew, WCHAR *pwOld, WORD *pspInfoOrder, UINT *pichNewCur, INT cwOrderInfo, TOKSTRUCT *pTokArray, INT iArrayStart, INT iArrayEnd, INT iArrayDSPStart, INT iArrayDSPEnd, INT cchNewCopy, HGLOBAL *phgNew); void SaveSpacingSpecial(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR *ppwNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, INT iArray, UINT *pichNewCur); void RestoreSpacingSpecial(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR *ppwNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT iArray, UINT *pichNewCur);
HRESULT ProcessToken(DWORD &lxs, TXTB &tok, LPWSTR pszText, UINT cbCur, TOKSTACK *pTokStack, INT *pitokTop, TOKSTRUCT *pTokArray, INT iArrayPos, INT tagID); void FilterHtml(LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, FilterMode mode, DWORD dwFlags);
struct FilterTok { TOKEN tokBegin; TOKEN tokBegin2; // supporting token
TOKEN tokClsBegin; TOKEN tokEnd; TOKEN tokEnd2; // supporting token
TOKEN tokClsEnd; };
typedef void (_stdcall* PFNACTION)(CTriEditParse *, LPWSTR, LPWSTR *, UINT *, HGLOBAL *, TOKSTRUCT *, UINT*, FilterTok, INT*, UINT*, UINT*, DWORD); struct FilterRule { FilterTok ft; PFNACTION pfn; };
// Following are static functions. We could make them members, but it wasn't felt necessary then.
void static fnRestoreDTC(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveDTC(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags);
void static fnRestoreSSS(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveSSS(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags);
void static fnRestoreHtmlTag(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveHtmlTag(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveNBSP(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreNBSP(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveHdr(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreHdr(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveFtr(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreFtr(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreSpace(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveSpace(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreSpaceEnd(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreObject(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveObject(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreTbody(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveTbody(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveApplet(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreApplet(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveAImgLink(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreAImgLink(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveComment(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreComment(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnSaveTextArea(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags); void static fnRestoreTextArea(CTriEditParse *ptep, LPWSTR pwOld, LPWSTR* ppwNew, UINT *pcchNew, HGLOBAL *phgNew, TOKSTRUCT *pTokArray, UINT *piArrayStart, FilterTok ft, INT *pcHtml, UINT *pichNewCur, UINT *pichBeginCopy, DWORD dwFlags);
#define cRuleMax 26 /* max number of filtering rules. if you add a new rule above, change this too */
FilterRule m_FilterRule[cRuleMax];
};
#endif //__HTMPARSE_H_
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