129 lines
3.1 KiB
C++
129 lines
3.1 KiB
C++
/* $XConsortium: Token.h /main/3 1996/08/21 15:47:54 drk $ -*- c++ -*- */
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#ifndef TOKEN_HEADER
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#define TOKEN_HEADER
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#include <strstream.h>
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#include "Exceptions.hh"
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#include "SGMLDefn.h"
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#include "AttributeList.h"
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class FlexBuffer;
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class AttributeRec;
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class SGMLDefn;
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enum TOKEN_TYPE {
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TK_INVALID = 0,
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START,
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END,
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EXTERNAL_ENTITY,
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INTERNAL_ENTITY,
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SUBDOC_START,
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SUBDOC_END
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/* eventually... ENTITY, COMMENT */
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};
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// Token is the data structure for repository storage of the token
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class Token {
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public:
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Token();
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TOKEN_TYPE type() const { return tokType; }
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const char *giName() const;
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int Gi() const { return GiValue; }
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/* find value of OLIAS attribute, or -1 if none */
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int olaf() const { return f_olaf; }
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const AttributeRec *GetFirstAttr() const;
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const AttributeRec *GetNextAttr( const AttributeRec *) const;
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int AttributeMatch( int , int ) const;
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const AttributeRec *LookupAttr( int ) const;
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int getEntityName() const { return entity_name; }
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const char *getEntityFileName() const;
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int level() const { return f_level; };
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const char *file() const { return f_file; };
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int line() const { return f_line; };
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typedef enum { User, Internal } ErrorSource;
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typedef enum { Fatal, Continuable } ErrorSeverity;
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/* USE:
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* t.reportError(Token::User, Token::Continuable,
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* "this is wrong: %s", some_string);
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* or
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* Token::reportError(Token::User, Token::Continuable,
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* "this is wrong: %s", some_string);
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*
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* (src and sev would be declared using the above enumerations,
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* but the compiler does strange things with them, so we use int.)
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*/
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void reportError(int src, int sev, const char *fmt, ...);
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/* throw ErrorReported */
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static void signalError(int src, int sev,
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const char *file, /* can be NULL */
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int line,
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const char *fmt, ...);
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private:
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friend int yylex();
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friend class Dispatch;
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OL_AttributeList aList;
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int GiValue;
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int entity_name;
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SGMLDefn *entity_defn;
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TOKEN_TYPE tokType;
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int f_level;
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const char *f_file;
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int f_line;
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int f_olaf;
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protected:
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void StoreAttribute( const char *name, const char *value,
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int declared_value );
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void StoreStartTag ( unsigned char *, int);
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void StoreEndTag ( unsigned char *, int);
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void StoreEntity ( unsigned char *, TOKEN_TYPE entity_type);
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void StoreSubDoc ( TOKEN_TYPE tokType );
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void SetEntityValue( SGMLDefn *defn );
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void setFileLine(char *file /* we keep a pointer to file: don't delete it!*/,
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int line) { f_file = file; f_line = line; };
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};
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inline
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const char *
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Token::getEntityFileName() const
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{
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if ( entity_defn ) {
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return( entity_defn->getFileName() );
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}
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else return(NULL);
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}
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class ErrorReported : public Exception{
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public:
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ErrorReported(int source, int severity) /* see ReportError above */
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{ f_source = source;
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f_severity = severity;
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};
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int f_source;
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int f_severity;
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DECLARE_EXCEPTION(ErrorReported, Exception);
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};
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#endif
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