Pl_QPDFTokenizer.hh
1.14 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
#ifndef __PL_QPDFTOKENIZER_HH__
#define __PL_QPDFTOKENIZER_HH__
#include <qpdf/Pipeline.hh>
#include <qpdf/QPDFTokenizer.hh>
#include <qpdf/PointerHolder.hh>
#include <qpdf/QPDFObjectHandle.hh>
// Tokenize the incoming text using QPDFTokenizer and pass the tokens
// in turn to a QPDFObjectHandle::TokenFilter object. All bytes of
// incoming content will be included in exactly one token and passed
// downstream.
class Pl_QPDFTokenizer: public Pipeline
{
public:
Pl_QPDFTokenizer(char const* identifier,
QPDFObjectHandle::TokenFilter* filter);
virtual ~Pl_QPDFTokenizer();
virtual void write(unsigned char* buf, size_t len);
virtual void finish();
private:
void processChar(char ch);
void checkUnread();
class Members
{
friend class Pl_QPDFTokenizer;
public:
~Members();
private:
Members();
Members(Members const&);
QPDFObjectHandle::TokenFilter* filter;
QPDFTokenizer tokenizer;
bool last_char_was_cr;
bool unread_char;
char char_to_unread;
};
PointerHolder<Members> m;
};
#endif // __PL_QPDFTOKENIZER_HH__