197 lines
4.9 KiB
C++
197 lines
4.9 KiB
C++
// Copyright (c) 1994 James Clark
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// See the file COPYING for copying permission.
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#ifndef Location_INCLUDED
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#define Location_INCLUDED 1
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "types.h"
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#include "Boolean.h"
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#include "Ptr.h"
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#include "Resource.h"
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#include "Boolean.h"
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#include "Vector.h"
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#include "Owner.h"
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#include "StringC.h"
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#include "rtti.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 ExternalInfo;
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class EntityOrigin;
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class InputSourceOrigin;
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class Entity;
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class EntityDecl;
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class Location;
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class Markup;
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class Text;
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class NamedCharRef;
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class SP_API Origin : public Resource {
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public:
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virtual ~Origin();
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virtual const EntityOrigin *asEntityOrigin() const;
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virtual const InputSourceOrigin *asInputSourceOrigin() const;
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virtual const Location &parent() const = 0;
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virtual Index refLength() const;
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virtual Boolean origChars(const Char *&) const;
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virtual Boolean inBracketedTextOpenDelim() const;
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virtual Boolean inBracketedTextCloseDelim() const;
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virtual Boolean isNumericCharRef(const Markup *&markup) const;
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virtual Boolean isNamedCharRef(Index ind, NamedCharRef &ref) const;
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virtual const EntityDecl *entityDecl() const;
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virtual Boolean defLocation(Offset off, const Origin *&, Index &) const;
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virtual const Markup *markup() const;
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virtual const Entity *entity() const;
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virtual const ExternalInfo *externalInfo() const;
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virtual Offset startOffset(Index ind) const;
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const StringC *entityName() const;
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};
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class SP_API ProxyOrigin : public Origin {
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public:
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ProxyOrigin(const Origin *origin);
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const EntityOrigin *asEntityOrigin() const;
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const InputSourceOrigin *asInputSourceOrigin() const;
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const Location &parent() const;
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Index refLength() const;
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Boolean origChars(const Char *&) const;
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Boolean inBracketedTextOpenDelim() const;
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Boolean inBracketedTextCloseDelim() const;
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Boolean isNumericCharRef(const Markup *&markup) const;
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Boolean isNamedCharRef(Index ind, NamedCharRef &ref) const;
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const EntityDecl *entityDecl() const;
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Boolean defLocation(Offset off, const Origin *&, Index &) const;
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const Markup *markup() const;
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const Entity *entity() const;
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const ExternalInfo *externalInfo() const;
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Offset startOffset(Index ind) const;
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private:
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const Origin *origin_;
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};
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class SP_API Location {
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public:
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Location();
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Location(const Location&);
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Location(Origin *, Index);
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Location(ConstPtr<Origin>, Index);
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void operator+=(Index i) { index_ += i; }
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void operator-=(Index i) { index_ -= i; }
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Index index() const { return index_; }
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const ConstPtr<Origin> &origin() const { return origin_; }
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void clear() { origin_.clear(); }
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void swap(Location &to) {
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origin_.swap(to.origin_);
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Index tem = to.index_;
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to.index_ = index_;
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index_ = tem;
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}
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private:
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ConstPtr<Origin> origin_;
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Index index_;
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};
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class SP_API ExternalInfo {
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RTTI_CLASS
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public:
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virtual ~ExternalInfo();
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};
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class SP_API NamedCharRef {
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public:
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enum RefEndType {
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endOmitted,
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endRE,
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endRefc
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};
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NamedCharRef();
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NamedCharRef(Index, RefEndType, const StringC &);
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Index refStartIndex() const;
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RefEndType refEndType() const;
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const StringC &origName() const;
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void set(Index, RefEndType, const Char *, size_t);
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private:
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Index refStartIndex_;
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RefEndType refEndType_;
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StringC origName_;
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};
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struct SP_API InputSourceOriginNamedCharRef {
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Index replacementIndex;
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size_t origNameOffset;
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Index refStartIndex;
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NamedCharRef::RefEndType refEndType;
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};
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class SP_API InputSourceOrigin : public Origin {
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public:
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virtual ~InputSourceOrigin() = 0;
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virtual void noteCharRef(Index replacementIndex, const NamedCharRef &) = 0;
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virtual void setExternalInfo(ExternalInfo *) = 0;
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virtual InputSourceOrigin *copy() const = 0;
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static InputSourceOrigin *make();
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static InputSourceOrigin *make(const Location &refLocation);
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};
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// a delimiter specified in bracketed text
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class SP_API BracketOrigin : public Origin {
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public:
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enum Position { open, close };
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BracketOrigin(const Location &, Position);
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const Location &parent() const;
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Boolean inBracketedTextOpenDelim() const;
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Boolean inBracketedTextCloseDelim() const;
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private:
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Position pos_;
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Location loc_;
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};
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class SP_API ReplacementOrigin : public Origin {
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public:
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ReplacementOrigin(const Location &, Char origChar);
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const Location &parent() const;
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Boolean origChars(const Char *&) const;
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private:
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Location loc_;
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Char origChar_;
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};
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class SP_API MultiReplacementOrigin : public Origin {
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public:
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MultiReplacementOrigin(const Location &, StringC &origChars);
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const Location &parent() const;
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Boolean origChars(const Char *&) const;
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private:
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Location loc_;
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StringC origChars_;
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};
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inline
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Index NamedCharRef::refStartIndex() const
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{
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return refStartIndex_;
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}
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inline
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NamedCharRef::RefEndType NamedCharRef::refEndType() const
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{
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return refEndType_;
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}
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inline
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const StringC &NamedCharRef::origName() const
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{
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return origName_;
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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 Location_INCLUDED */
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