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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* GRAPHITE2 LICENSING
Copyright 2011, SIL International
All rights reserved.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should also have received a copy of the GNU Lesser General Public
License along with this library in the file named "LICENSE".
If not, write to the Free Software Foundation, 51 Franklin Street,
Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
internet at http://www.fsf.org/licenses/lgpl.html.
Alternatively, the contents of this file may be used under the terms of the
Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
License, as published by the Free Software Foundation, either version 2
of the License or (at your option) any later version.
*/
// JSON pretty printer for graphite font debug output logging.
// Created on: 15 Dec 2011
// Author: Tim Eves
#pragma once
#include "inc/Main.h"
#include <cassert>
#include <cstdio>
#include <cstdint>
#include "inc/List.h"
namespace graphite2 {
class json
{
// Prevent copying
json(const json &);
json & operator = (const json &);
typedef void (*_context_t)(json &);
FILE * const _stream;
char _contexts[128], // context stack
* _context, // current context (top of stack)
* _flatten; // if !0 points to context above which
// pretty printed output should occur.
Vector<void *> _env;
void context(const char current) throw();
void indent(const int d=0) throw();
void push_context(const char, const char) throw();
void pop_context() throw();
public:
class closer;
using string = const char *;
using number = double;
enum class integer : std::intmax_t {};
enum class integer_u : std::uintmax_t {};
using boolean = bool;
static const std::nullptr_t null;
void setenv(unsigned int index, void *val) { _env.reserve(index + 1); if (index >= _env.size()) _env.insert(_env.end(), _env.size() - index + 1, 0); _env[index] = val; }
void *getenv(unsigned int index) const { return _env[index]; }
const Vector<void *> &getenvs() const { return _env; }
static void flat(json &) throw();
static void close(json &) throw();
static void object(json &) throw();
static void array(json &) throw();
static void item(json &) throw();
json(FILE * stream) throw();
~json() throw ();
FILE * stream() const throw();
json & operator << (string) throw();
json & operator << (number) throw();
json & operator << (integer) throw();
json & operator << (integer_u) throw();
json & operator << (boolean) throw();
json & operator << (std::nullptr_t) throw();
json & operator << (_context_t) throw();
operator bool() const throw();
bool good() const throw();
bool eof() const throw();
CLASS_NEW_DELETE;
};
class json::closer
{
// Prevent copying.
closer(const closer &);
closer & operator = (const closer &);
json * const _j;
public:
closer(json * const j) : _j(j) {}
~closer() throw() { if (_j) *_j << close; }
};
inline
json::json(FILE * s) throw()
: _stream(s), _context(_contexts), _flatten(0)
{
if (good())
fflush(s);
}
inline
json::~json() throw ()
{
while (_context > _contexts) pop_context();
}
inline
FILE * json::stream() const throw() { return _stream; }
inline
json & json::operator << (json::_context_t ctxt) throw()
{
ctxt(*this);
return *this;
}
inline
json & operator << (json & j, signed char d) throw() { return j << json::integer(d); }
inline
json & operator << (json & j, unsigned char d) throw() { return j << json::integer_u(d); }
inline
json & operator << (json & j, short int d) throw() { return j << json::integer(d); }
inline
json & operator << (json & j, unsigned short int d) throw() { return j << json::integer_u(d); }
inline
json & operator << (json & j, int d) throw() { return j << json::integer(d); }
inline
json & operator << (json & j, unsigned int d) throw() { return j << json::integer_u(d); }
inline
json & operator << (json & j, long int d) throw() { return j << json::integer(d); }
inline
json & operator << (json & j, unsigned long int d) throw() { return j << json::integer_u(d); }
inline
json & operator << (json & j, long long int d) throw() { return j << json::integer(d); }
inline
json & operator << (json & j, unsigned long long int d) throw() { return j << json::integer_u(d); }
inline
json::operator bool() const throw() { return good(); }
inline
bool json::good() const throw() { return _stream && ferror(_stream) == 0; }
inline
bool json::eof() const throw() { return feof(_stream) != 0; }
} // namespace graphite2
|
