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