| //======================================================================== |
| // |
| // 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 |
| |