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//========================================================================
//
// Parser.h
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2006, 2010, 2013, 2017, 2018 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2012 Hib Eris <hib@hiberis.nl>
// Copyright (C) 2013 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2019 Adam Reichold <adam.reichold@t-online.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef PARSER_H
#define PARSER_H
#include "Lexer.h"
//------------------------------------------------------------------------
// Parser
//------------------------------------------------------------------------
class Parser {
public:
// Constructor.
Parser(XRef *xrefA, Stream *streamA, bool allowStreamsA);
Parser(XRef *xrefA, Object *objectA, bool allowStreamsA);
// Destructor.
~Parser();
Parser(const Parser &) = delete;
Parser& operator=(const Parser &) = delete;
// Get the next object from the input stream. If <simpleOnly> is
// true, do not parse compound objects (arrays, dictionaries, or
// streams).
Object getObj(bool simpleOnly = false,
unsigned char *fileKey = nullptr,
CryptAlgorithm encAlgorithm = cryptRC4, int keyLength = 0,
int objNum = 0, int objGen = 0, int recursion = 0,
bool strict = false);
Object getObj(int recursion);
template<typename T> Object getObj(T) = delete;
// Get stream.
Stream *getStream() { return lexer.getStream(); }
// Get current position in file.
Goffset getPos() { return lexer.getPos(); }
private:
Lexer lexer; // input stream
bool allowStreams; // parse stream objects?
Object buf1, buf2; // next two tokens
int inlineImg; // set when inline image data is encountered
Stream *makeStream(Object &&dict, unsigned char *fileKey,
CryptAlgorithm encAlgorithm, int keyLength,
int objNum, int objGen, int recursion,
bool strict);
void shift(int objNum = -1);
void shift(const char *cmdA, int objNum);
};
#endif
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