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ec9e310c9e
Add a version of expectInlineImage that takes an input source and searches for EI. This is in preparation for improving the way EI is found. This commit just refactors the code without changing the functionality and adds tests to make sure the old and new code behave identically.
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
// Copyright (c) 2005-2019 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");
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// you may not use this file except in compliance with the License.
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// 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
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Versions of qpdf prior to version 7 were released under the terms
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// of version 2.0 of the Artistic License. At your option, you may
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// continue to consider qpdf to be licensed under those terms. Please
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// see the manual for additional information.
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#ifndef PL_QPDFTOKENIZER_HH
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#define PL_QPDFTOKENIZER_HH
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#include <qpdf/Pipeline.hh>
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#include <qpdf/QPDFTokenizer.hh>
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#include <qpdf/PointerHolder.hh>
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#include <qpdf/QPDFObjectHandle.hh>
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#include <qpdf/Pl_Buffer.hh>
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// Tokenize the incoming text using QPDFTokenizer and pass the tokens
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// in turn to a QPDFObjectHandle::TokenFilter object. All bytes of
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// incoming content will be included in exactly one token and passed
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// downstream.
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// This is a very low-level interface for working with token filters.
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// Most code will want to use QPDFObjectHandle::filterPageContents or
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// QPDFObjectHandle::addTokenFilter. See QPDFObjectHandle.hh for
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// details.
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class Pl_QPDFTokenizer: public Pipeline
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{
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public:
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// Whatever pipeline is provided as "next" will be set as the
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// pipeline that the token filter writes to. If next is not
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// provided, any output written by the filter will be discarded.
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QPDF_DLL
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Pl_QPDFTokenizer(char const* identifier,
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QPDFObjectHandle::TokenFilter* filter,
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Pipeline* next = 0);
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QPDF_DLL
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virtual ~Pl_QPDFTokenizer();
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QPDF_DLL
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virtual void write(unsigned char* buf, size_t len);
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QPDF_DLL
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virtual void finish();
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private:
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class Members
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{
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friend class Pl_QPDFTokenizer;
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public:
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QPDF_DLL
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~Members();
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private:
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Members();
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Members(Members const&);
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QPDFObjectHandle::TokenFilter* filter;
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QPDFTokenizer tokenizer;
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Pl_Buffer buf;
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};
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PointerHolder<Members> m;
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};
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#endif // PL_QPDFTOKENIZER_HH
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