pdftops/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 <config.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   Object *getObj(Object *obj,
  35                  Guchar *fileKey = NULL, int keyLength = 0,
  36                  int objNum = 0, int objGen = 0);
  37
  38   // Get stream.
  39   Stream *getStream() { return lexer->getStream(); }
  40
  41   // Get current position in file.
  42   int getPos() { return lexer->getPos(); }
  43
  44 private:
  45
  46   XRef *xref;                   // the xref table for this PDF file
  47   Lexer *lexer;                 // input stream
  48   Object buf1, buf2;            // next two tokens
  49   int inlineImg;                // set when inline image data is encountered
  50
  51   Stream *makeStream(Object *dict);
  52   void shift();
  53 };
  54
  55 #endif
  56