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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/**
* Copyright (c) 2021, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file logfmt.parser.hh
*/
#ifndef lnav_logfmt_parser_hh
#define lnav_logfmt_parser_hh
#include "base/intern_string.hh"
#include "base/result.h"
#include "mapbox/variant.hpp"
namespace logfmt {
class parser {
public:
explicit parser(string_fragment sf);
struct end_of_input {};
struct error {
int e_offset;
const std::string e_msg;
};
struct unquoted_value {
string_fragment uv_value;
};
struct quoted_value {
string_fragment qv_value;
};
struct bool_value {
bool bv_value{false};
string_fragment bv_str_value;
};
struct int_value {
int64_t iv_value{0};
string_fragment iv_str_value;
};
struct float_value {
double fv_value{0};
string_fragment fv_str_value;
};
using value_type = mapbox::util::variant<
bool_value,
int_value,
float_value,
unquoted_value,
quoted_value
>;
using kvpair = std::pair<string_fragment, value_type>;
using step_result = mapbox::util::variant<
end_of_input,
kvpair,
error
>;
step_result step();
private:
string_fragment p_next_input;
};
}
#endif
|
