231 lines
7.2 KiB
C
231 lines
7.2 KiB
C
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// Copyright (c) 1996 James Clark, 2000 Matthias Clasen
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// See the file COPYING for copying permission.
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#ifndef ArcProcessor_INCLUDED
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#define ArcProcessor_INCLUDED 1
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#include "Event.h"
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#include "ContentState.h"
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#include "Id.h"
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#include "NamedTable.h"
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#include "Vector.h"
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#include "ArcEngine.h"
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#include "SgmlParser.h"
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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class Allocator;
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// Processor for a single architecture
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class ArcProcessor : private ContentState, private AttributeContext {
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public:
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struct MetaMap {
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MetaMap();
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void clear();
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const Attributed *attributed;
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unsigned suppressFlags;
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// #ARCCONT and #CONTENT are handled with a special index
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// list of indexes into element's attlist of architectural attributes
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Vector<unsigned> attMapFrom;
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// corresponding list of indexes in form's attlist
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Vector<unsigned> attMapTo;
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// corresponding list of pointers in the token maps
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Vector<size_t> attTokenMapBase;
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Vector<StringC> tokenMapFrom;
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Vector<StringC> tokenMapTo;
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};
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struct MetaMapCache {
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MetaMapCache();
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void clear();
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MetaMap map;
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enum { nNoSpec = 4 };
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// Prerequisites for this cached entry to be valid.
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// The cache is only valid if for each member of noSpec != -1
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// the attribute with that index was not specified (or current)
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unsigned noSpec[nNoSpec];
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unsigned suppressFlags;
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const AttributeList *linkAtts;
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};
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ArcProcessor();
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void setName(const StringC &, const Location &);
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void init(const EndPrologEvent &,
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const ConstPtr<Sd> &,
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const ConstPtr<Syntax> &,
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const SgmlParser *parser,
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Messenger *,
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const Vector<StringC> &superName,
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const NCVector<ArcProcessor> &arcProcessors,
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ArcDirector &director,
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const volatile sig_atomic_t *cancelPtr);
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// Return 0 if the content is needed, but wasn't supplied
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Boolean processStartElement(const StartElementEvent &,
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const AttributeList *linkAttributes,
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const Text *content,
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Allocator &);
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void processEndElement(const EndElementEvent &,
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Allocator &);
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// Return true if its architectural.
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Boolean processData();
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ConstPtr<Dtd> dtdPointer() const { return metaDtd_; }
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Boolean valid() const { return valid_; }
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void checkIdrefs();
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const StringC &name() const { return name_; }
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Boolean piDecl() const { return piDecl_; }
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EventHandler &docHandler() const { return *docHandler_; }
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void setPiDecl(const Location &loc, const StringC &attspecText, Index attspecIndex,
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const ConstPtr<AttributeDefinitionList> &archPiAttributeDefs);
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private:
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ArcProcessor(const ArcProcessor &); // undefined
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void operator=(const ArcProcessor &); // undefined
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const Syntax &attributeSyntax() const;
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ConstPtr<Notation> getAttributeNotation(const StringC &,
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const Location &);
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ConstPtr<Entity> getAttributeEntity(const StringC &,
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const Location &);
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void noteCurrentAttribute(size_t, AttributeValue *);
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ConstPtr<AttributeValue> getCurrentAttribute(size_t) const;
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Boolean defineId(const StringC &, const Location &, Location &);
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void noteIdref(const StringC &, const Location &);
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Id *lookupCreateId(const StringC &);
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void dispatchMessage(const Message &);
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void dispatchMessage(Message &);
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void initMessage(Message &);
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const MetaMap &buildMetaMap(const ElementType *,
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const Notation *,
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const AttributeList &,
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const AttributeList *linkAtts,
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unsigned suppressFlags);
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void considerSupr(const AttributeList &atts,
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const AttributeList *linkAtts,
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unsigned &thisSuppressFlags,
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unsigned &newSuppressFlags,
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Boolean &inhibitCache,
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unsigned &arcSuprIndex);
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void considerIgnD(const AttributeList &atts,
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const AttributeList *linkAtts,
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unsigned thisSuppressFlags,
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unsigned &newSuppressFlags,
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Boolean &inhibitCache,
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unsigned &arcSuprIndex);
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const Attributed *considerForm(const AttributeList &atts,
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const AttributeList *linkAtts,
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const StringC &name,
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Boolean isNotation,
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unsigned thisSuppressFlags,
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unsigned &newSuppressFlags,
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Boolean &inhibitCache,
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unsigned &arcFormIndex);
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const Attributed *autoForm(const AttributeList &atts,
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const StringC &name,
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Boolean isNotation,
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unsigned thisSuppressFlags,
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unsigned &newSuppressFlags,
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Boolean &inhibitCache,
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unsigned &idIndex);
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const Text *considerNamer(const AttributeList &atts,
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Boolean &inhibitCache,
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unsigned &arcNamerIndex);
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void buildAttributeMapRename(MetaMap &map,
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const Text &rename,
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const AttributeList &atts,
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const AttributeList *linkAtts,
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Vector<PackedBoolean> &attRenamed,
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Vector<PackedBoolean> &attSubstituted,
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Boolean isNotation);
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void buildAttributeMapRest(MetaMap &map,
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const AttributeList &atts,
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const AttributeList *linkAtts,
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const Vector<PackedBoolean> &attRenamed);
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Boolean matchName(const StringC &name, const char *key);
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void split(const Text &text,
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Char space,
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Vector<StringC> &tokens,
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Vector<size_t> &tokenPos);
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Boolean mapAttributes(const AttributeList &from,
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const AttributeList *fromLink,
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const Text *content,
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AttributeList &to,
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ConstPtr<AttributeValue> &arcContent,
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const MetaMap &map);
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void supportAttributes(const AttributeList &, Boolean piDecl);
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void processArcOpts(const AttributeList &atts, Boolean piDecl);
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void processArcQuant(const Text &);
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ConstPtr<Entity> makeDtdEntity(const Notation *);
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void mungeMetaDtd(Dtd &metaDtd, const Dtd &docDtd);
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Boolean mungeDataEntity(ExternalDataEntity &entity);
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void emitArcContent(const Text &text,
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EventHandler &handler,
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Allocator &allocator);
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Boolean valid_;
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StringC name_;
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Messenger *mgr_;
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ConstPtr<Dtd> docDtd_;
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Ptr<Dtd> metaDtd_;
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ConstPtr<Syntax> docSyntax_;
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ConstPtr<Syntax> metaSyntax_;
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ConstPtr<Sd> docSd_;
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enum ReservedName {
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rArcName,
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rArcPubid,
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rArcFormA,
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rArcNamrA,
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rArcSuprA,
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rArcIgnDA,
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rArcDocF,
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rArcSuprF,
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rArcBridF,
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rArcDataF,
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rArcAuto,
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rArcDTD,
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rArcDtdPubid,
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rArcDtdSysid,
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rArcQuant
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};
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enum { nReserve = rArcQuant + 1 };
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StringC supportAtts_[nReserve];
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const Text *supportAttsText_[nReserve];
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Boolean piDecl_;
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Location declLoc_;
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StringC piDeclAttspecText_;
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Index piDeclAttspecIndex_;
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ConstPtr<AttributeDefinitionList> archPiAttributeDefs_;
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Boolean arcDtdIsParam_;
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Boolean arcAuto_;
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Vector<StringC> arcOpts_;
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StringC rniContent_;
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StringC rniArcCont_;
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StringC rniDefault_;
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StringC rniMaptoken_;
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enum {
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isArc = 01,
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suppressForm = 02,
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suppressSupr = 04,
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ignoreData = 010,
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condIgnoreData = 020,
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// recovering from invalid data
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recoverData = 040
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};
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Vector<unsigned> openElementFlags_;
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AttributeList attributeList_;
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NCVector<Owner<MetaMapCache> > metaMapCache_;
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MetaMap noCacheMetaMap_;
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NamedTable<Id> idTable_;
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Vector<ConstPtr<AttributeValue> > currentAttributes_;
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ConstPtr<Notation> defaultNotation_;
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Boolean errorIdref_;
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ArcDirector *director_;
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EventHandler *docHandler_;
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Owner<EventHandler> ownEventHandler_;
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size_t docIndex_;
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};
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#ifdef SP_NAMESPACE
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}
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#endif
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#endif /* not ArcProcessor_INCLUDED */
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