mirror of https://github.com/qpdf/qpdf.git
81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#include <qpdf/Pl_QPDFTokenizer.hh>
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#include <qpdf/QTC.hh>
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#include <qpdf/QUtil.hh>
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#include <qpdf/BufferInputSource.hh>
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#include <stdexcept>
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#include <string.h>
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Pl_QPDFTokenizer::Members::Members() :
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filter(0),
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buf("tokenizer buffer")
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{
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}
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Pl_QPDFTokenizer::Members::~Members()
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{
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}
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Pl_QPDFTokenizer::Pl_QPDFTokenizer(char const* identifier,
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QPDFObjectHandle::TokenFilter* filter,
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Pipeline* next) :
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Pipeline(identifier, next),
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m(new Members)
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{
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m->filter = filter;
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QPDFObjectHandle::TokenFilter::PipelineAccessor::setPipeline(
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m->filter, next);
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m->tokenizer.allowEOF();
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m->tokenizer.includeIgnorable();
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}
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Pl_QPDFTokenizer::~Pl_QPDFTokenizer()
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{
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}
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void
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Pl_QPDFTokenizer::write(unsigned char* data, size_t len)
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{
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this->m->buf.write(data, len);
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}
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void
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Pl_QPDFTokenizer::finish()
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{
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this->m->buf.finish();
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PointerHolder<InputSource> input =
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new BufferInputSource("tokenizer data",
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this->m->buf.getBuffer(), true);
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while (true)
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{
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QPDFTokenizer::Token token = this->m->tokenizer.readToken(
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input, "offset " + QUtil::int_to_string(input->tell()),
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true);
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this->m->filter->handleToken(token);
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if (token.getType() == QPDFTokenizer::tt_eof)
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{
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break;
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}
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else if ((token.getType() == QPDFTokenizer::tt_word) &&
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(token.getValue() == "ID"))
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{
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// Read the space after the ID.
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char ch = ' ';
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input->read(&ch, 1);
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this->m->filter->handleToken(
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QPDFTokenizer::Token(
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QPDFTokenizer::tt_space, std::string(1, ch)));
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QTC::TC("qpdf", "Pl_QPDFTokenizer found ID");
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this->m->tokenizer.expectInlineImage(input);
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}
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}
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this->m->filter->handleEOF();
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QPDFObjectHandle::TokenFilter::PipelineAccessor::setPipeline(
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m->filter, 0);
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Pipeline* next = this->getNext(true);
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if (next)
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{
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next->finish();
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}
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}
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