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28
29#ifndef CBORDEVICE_H
30#define CBORDEVICE_H
31
32#include <memory>
33#include <stdio.h>
34
35#define CBOR_API inline
36#define CBOR_PRIVATE_API inline
37#define CBOR_NO_PARSER_API 1
38#include <cbor.h>
39
40class CborDevice
41{
42public:
43 CborDevice(FILE *out) : out(out) {}
44
45 void nextItem(const char *comment = nullptr)
46 {
47 i = 0;
48 if (comment)
49 fprintf(out, "\n // %s", comment);
50 }
51
52 static CborError callback(void *self, const void *ptr, size_t len, CborEncoderAppendType t)
53 {
54 auto that = static_cast<CborDevice *>(self);
55 auto data = static_cast<const char *>(ptr);
56 if (t == CborEncoderAppendCborData) {
57 while (len--)
58 that->putByte(*data++);
59 } else {
60 while (len--)
61 that->putChar(*data++);
62 }
63 return CborNoError;
64 }
65
66private:
67 FILE *out;
68 int i = 0;
69
70 void putNewline()
71 {
72 if ((i++ % 8) == 0)
73 fputs("\n ", out);
74 }
75
76 void putByte(uint8_t c)
77 {
78 putNewline();
79 fprintf(out, " 0x%02x, ", c);
80 }
81
82 void putChar(char c)
83 {
84 putNewline();
85 if (uchar(c) < 0x20)
86 fprintf(out, " '\\x%x',", uint8_t(c));
87 else if (uchar(c) >= 0x7f)
88 fprintf(out, " uchar('\\x%x'),", uint8_t(c));
89 else if (c == '\'' || c == '\\')
90 fprintf(out, " '\\%c',", c);
91 else
92 fprintf(out, " '%c', ", c);
93 }
94};
95
96#endif // CBORDEVICE_H
97