PdfPostScriptTokenizer.h

// SPDX-FileCopyrightText: 2021 Francesco Pretto <ceztko@gmail.com>
// SPDX-License-Identifier: LGPL-2.0-or-later OR MPL-2.0
 
#ifndef PDF_POSTSCRIPT_TOKENIZER_H
#define PDF_POSTSCRIPT_TOKENIZER_H
 
#include "PdfTokenizer.h"
#include "PdfVariant.h"
#include <podofo/auxiliary/InputDevice.h>
 
namespace PoDoFo {
 
enum class PdfPostScriptTokenType : uint8_t
{
    Unknown = 0,
    Keyword, 
    Variant, 
    ProcedureEnter, 
    ProcedureExit, 
};
 
class PODOFO_API PdfPostScriptTokenizer final : private PdfTokenizer
{
public:
    PdfPostScriptTokenizer();
    PdfPostScriptTokenizer(std::shared_ptr<charbuff> buffer);
 
    [[deprecated("Use the overloads with PdfTokenizerParams instead")]]
    PdfPostScriptTokenizer(PdfPostScriptLanguageLevel level);
    [[deprecated("Use the overloads with PdfTokenizerParams instead")]]
    PdfPostScriptTokenizer(std::shared_ptr<charbuff> buffer, PdfPostScriptLanguageLevel level);
public:
    bool TryReadNext(InputStreamDevice& device, PdfPostScriptTokenType& tokenType, std::string_view& keyword, PdfVariant& variant);
    void ReadNext(InputStreamDevice& device, PdfPostScriptTokenType& tokenType, std::string_view& keyword, PdfVariant& variant);
    void ReadNextVariant(InputStreamDevice& device, PdfVariant& variant);
    bool TryReadNextVariant(InputStreamDevice& device, PdfVariant& variant);
 
    using PdfTokenizer::GetParameters;
    void SetParameters(const PdfTokenizerParams& params);
private:
    bool readNext(InputStreamDevice& device, PdfPostScriptTokenType& tokenType, std::string_view& keyword, ParsingOptions opts, PdfVariant& variant);
};
 
};
 
#endif // PDF_POSTSCRIPT_TOKENIZER_H