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// Copyright (c) 1994 James Clark
// See the file COPYING for copying permission.
#ifndef RastEventHandler_INCLUDED
#define RastEventHandler_INCLUDED 1
#ifdef __GNUG__
#pragma interface
#endif
#include "Event.h"
#include "Vector.h"
#include "Vector.h"
#include "Boolean.h"
#include "Vector.h"
#include "StringC.h"
#include "types.h"
#include "OutputCharStream.h"
#include "LinkProcess.h"
#include "Message.h"
#include "Link.h"
#include "IQueue.h"
#include "ErrorCountEventHandler.h"
#include <limits.h>
#include <stddef.h>
#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif
class AttributeList;
class ExternalDataEntity;
class SubdocEntity;
class ExternalId;
class InternalEntity;
class SgmlParser;
class RastPrintable {
public:
RastPrintable();
int operator()(Char c) const;
private:
char v_[UCHAR_MAX + 1];
};
class RastEventHandler;
class RastLinkProcess : public LinkProcess {
public:
RastLinkProcess();
void setHandler(RastEventHandler *);
Boolean selectLinkRule(const Vector<const AttributeList *> &linkAttributes,
const Location &location,
size_t &selected);
void swap(RastLinkProcess &);
private:
Boolean selectLinkRulePi(const StringC &str,
const Location &loc,
const Vector<const AttributeList *> &linkAttributes,
size_t &selected);
RastLinkProcess(const RastLinkProcess &); // undefined
void operator=(RastLinkProcess &); // undefined
RastEventHandler *rast_;
};
struct LinkRulePi : public Link {
inline virtual ~LinkRulePi() {}
StringC pi;
Location loc;
};
class RastSubdocState {
public:
RastSubdocState();
RastSubdocState(SgmlParser *, RastEventHandler *);
void init(SgmlParser *, RastEventHandler *);
void swap(RastSubdocState &);
protected:
SgmlParser *parser_;
Boolean hadActiveLpdOrDtd_;
Location activeLpdOrDtdLocation_;
Vector<StringC> activeLinkTypes_;
Boolean hadDocumentElement_;
RastLinkProcess linkProcess_;
Boolean haveLinkProcess_;
Owner<EndPrologEvent> endPrologEvent_;
Vector<PackedBoolean> parseSubdocQueue_;
IQueue<LinkRulePi> linkRuleQueue_;
enum AttributeType {
dtdAttribute,
linkAttribute,
resultAttribute,
simpleAttribute
};
enum { nAttributeType = simpleAttribute + 1 };
Vector<Vector<size_t> > attributeSortOrder_[nAttributeType];
private:
RastSubdocState(const RastSubdocState &); // undefined
void operator=(const RastSubdocState &); // undefined
friend class RastLinkProcess;
};
class RastEventHandler : public ErrorCountEventHandler,
private RastSubdocState,
protected Messenger {
public:
RastEventHandler(SgmlParser *, Messenger *);
void data(DataEvent *);
void startElement(StartElementEvent *);
void endElement(EndElementEvent *);
void pi(PiEvent *);
void sdataEntity(SdataEntityEvent *);
void externalDataEntity(ExternalDataEntityEvent *);
void subdocEntity(SubdocEntityEvent *);
void nonSgmlChar(NonSgmlCharEvent *);
void sgmlDecl(SgmlDeclEvent *);
void endProlog(EndPrologEvent *);
void uselink(UselinkEvent *);
virtual void truncateOutput();
void end();
void setOutputStream(OutputCharStream *os);
static const char *messageText(int);
static const char messageSource[];
protected:
void initMessage(Message &);
void dispatchMessage(const Message &);
private:
RastEventHandler(const RastEventHandler &); // undefined
void operator=(const RastEventHandler &); // undefined
enum LineType { dataLine = '|', markupLine = '!' };
void lines(LineType, const Char *p, size_t length);
enum { maxLineLength = 60 };
enum { RS = '\n', RE = '\r', TAB = '\t' };
#if 0
static const RastPrintable printable;
#else
static RastPrintable printable;
#endif
int lineLength_;
OutputCharStream *os_;
StringC rastParseSubdocYesString_;
StringC rastParseSubdocNoString_;
StringC rastActiveLpdString_;
StringC rastLinkRuleString_;
unsigned piErrorCount_;
Messenger *mgr_;
int lexCmp(const StringC &s1, const StringC &s2);
void flushLine(LineType);
void attributeInfo(const AttributeList &, AttributeType);
void externalEntityInfo(const ExternalDataEntity *, AttributeType);
void subdocEntityInfo(const SubdocEntity *,
const Ptr<InputSourceOrigin> &entityOrigin,
Boolean referenced);
void externalIdInfo(const ExternalId &);
void internalEntityInfo(const InternalEntity *);
void queueParseSubdoc(Boolean);
Boolean parseNextSubdoc();
Boolean interpretRastPi(const Char *data, size_t dataLength,
const Location &);
void activeLinks();
void simpleLinkInfo();
void impliedSourceLinkRules();
OutputCharStream &os();
friend class RastLinkProcess;
};
inline
int RastPrintable::operator()(Char c) const
{
return c <= UCHAR_MAX ? v_[c] : 0;
}
inline
void RastEventHandler::setOutputStream(OutputCharStream *os)
{
os_ = os;
}
inline
OutputCharStream &RastEventHandler::os()
{
return *os_;
}
#ifdef SP_NAMESPACE
}
#endif
#endif /* not RastEventHandler_INCLUDED */
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