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40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
#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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//
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// Treat incoming text as a stream consisting of valid PDF tokens, but
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// output bad tokens just the same. The idea here is to be able to
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// use pipeline for content streams to normalize newlines without
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// interfering with meaningful newlines such as those that occur
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// inside of strings.
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//
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class Pl_QPDFTokenizer: public Pipeline
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{
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public:
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Pl_QPDFTokenizer(char const* identifier, Pipeline* next);
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virtual ~Pl_QPDFTokenizer();
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virtual void write(unsigned char* buf, int len);
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virtual void finish();
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private:
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void processChar(char ch);
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void checkUnread();
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void writeNext(char const*, int len);
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void writeToken(QPDFTokenizer::Token&);
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QPDFTokenizer tokenizer;
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bool newline_after_next_token;
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bool just_wrote_nl;
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bool last_char_was_cr;
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bool unread_char;
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char char_to_unread;
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bool pass_through;
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};
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#endif // __PL_QPDFTOKENIZER_HH__
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