mirror of https://github.com/qpdf/qpdf.git
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
// Copyright (c) 2005-2023 Jay Berkenbilt
|
|
//
|
|
// This file is part of qpdf.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
// Versions of qpdf prior to version 7 were released under the terms
|
|
// of version 2.0 of the Artistic License. At your option, you may
|
|
// continue to consider qpdf to be licensed under those terms. Please
|
|
// see the manual for additional information.
|
|
|
|
#ifndef PL_STRING_HH
|
|
#define PL_STRING_HH
|
|
|
|
// This pipeline accumulates the data passed to it into a std::string,
|
|
// a reference to which is passed in at construction. Each subsequent
|
|
// use of this pipeline appends to the data accumulated so far.
|
|
//
|
|
// For this pipeline, "next" may be null. If a next pointer is
|
|
// provided, this pipeline will also pass the data through to it and
|
|
// will forward finish() to it.
|
|
//
|
|
// It is okay to not call finish() on this pipeline if it has no
|
|
// "next". This makes it easy to stick this in front of another
|
|
// pipeline to capture data that is written to the other pipeline
|
|
// without interfering with when finish is called on the other
|
|
// pipeline and without having to put a Pl_Concatenate after it.
|
|
|
|
#include <qpdf/Pipeline.hh>
|
|
|
|
#include <string>
|
|
|
|
class QPDF_DLL_CLASS Pl_String: public Pipeline
|
|
{
|
|
public:
|
|
QPDF_DLL
|
|
Pl_String(char const* identifier, Pipeline* next, std::string& s);
|
|
QPDF_DLL
|
|
virtual ~Pl_String();
|
|
|
|
QPDF_DLL
|
|
virtual void write(unsigned char const* buf, size_t len);
|
|
QPDF_DLL
|
|
virtual void finish();
|
|
|
|
private:
|
|
class QPDF_DLL_PRIVATE Members
|
|
{
|
|
friend class Pl_String;
|
|
|
|
public:
|
|
QPDF_DLL
|
|
~Members() = default;
|
|
|
|
private:
|
|
Members(std::string&);
|
|
Members(Members const&) = delete;
|
|
|
|
std::string& s;
|
|
};
|
|
|
|
std::shared_ptr<Members> m;
|
|
};
|
|
|
|
#endif // PL_STRING_HH
|