pdf2swf/xpdf/Parser.h

   1 //========================================================================
   2 //
   3 // Parser.h
   4 //
   5 // Copyright 1996-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 #ifndef PARSER_H
  10 #define PARSER_H
  11
  12 #include <aconf.h>
  13
  14 #ifdef USE_GCC_PRAGMAS
  15 #pragma interface
  16 #endif
  17
  18 #include "Lexer.h"
  19
  20 //------------------------------------------------------------------------
  21 // Parser
  22 //------------------------------------------------------------------------
  23
  24 class Parser {
  25 public:
  26
  27   // Constructor.
  28   Parser(XRef *xrefA, Lexer *lexerA);
  29
  30   // Destructor.
  31   ~Parser();
  32
  33   // Get the next object from the input stream.
  34 #ifndef NO_DECRYPTION
  35   Object *getObj(Object *obj,
  36                  Guchar *fileKey = NULL, int keyLength = 0,
  37                  int objNum = 0, int objGen = 0);
  38 #else
  39   Object *getObj(Object *obj);
  40 #endif
  41
  42   // Get stream.
  43   Stream *getStream() { return lexer->getStream(); }
  44
  45   // Get current position in file.
  46   int getPos() { return lexer->getPos(); }
  47
  48 private:
  49
  50   XRef *xref;                   // the xref table for this PDF file
  51   Lexer *lexer;                 // input stream
  52   Object buf1, buf2;            // next two tokens
  53   int inlineImg;                // set when inline image data is encountered
  54
  55   Stream *makeStream(Object *dict);
  56   void shift();
  57 };
  58
  59 #endif
  60