mirror of https://github.com/qpdf/qpdf.git
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
// Copyright (c) 2005-2024 Jay Berkenbilt
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//
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// This file is part of qpdf.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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// in compliance with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under
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// the License.
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//
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// Versions of qpdf prior to version 7 were released under the terms of version 2.0 of the Artistic
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// License. At your option, you may continue to consider qpdf to be licensed under those terms.
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// Please see the manual for additional information.
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#ifndef PL_STRING_HH
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#define PL_STRING_HH
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// This pipeline accumulates the data passed to it into a std::string, a reference to which is
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// passed in at construction. Each subsequent use of this pipeline appends to the data accumulated
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// so far.
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//
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// For this pipeline, "next" may be null. If a next pointer is provided, this pipeline will also
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// pass the data through to it and will forward finish() to it.
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//
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// It is okay to not call finish() on this pipeline if it has no "next". This makes it easy to stick
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// this in front of another pipeline to capture data that is written to the other pipeline without
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// interfering with when finish is called on the other pipeline and without having to put a
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// Pl_Concatenate after it.
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#include <qpdf/Pipeline.hh>
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#include <string>
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class QPDF_DLL_CLASS Pl_String: public Pipeline
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{
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public:
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QPDF_DLL
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Pl_String(char const* identifier, Pipeline* next, std::string& s);
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QPDF_DLL
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~Pl_String() override;
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QPDF_DLL
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void write(unsigned char const* buf, size_t len) override;
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QPDF_DLL
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void finish() override;
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private:
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class QPDF_DLL_PRIVATE Members
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{
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friend class Pl_String;
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public:
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QPDF_DLL
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~Members() = default;
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private:
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Members(std::string&);
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Members(Members const&) = delete;
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std::string& s;
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};
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std::shared_ptr<Members> m;
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};
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#endif // PL_STRING_HH
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