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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
Ousía
Copyright (C) 2014, 2015 Benjamin Paaßen, Andreas Stöckel
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <iostream>
#include <sstream>
#include "Logger.hpp"
namespace ousia {
/* Class Logger */
void Logger::log(Severity severity, std::string msg, TextCursor::Position pos,
TextCursor::Context ctx)
{
// Update the maximum encountered severity level
if (static_cast<int>(severity) > static_cast<int>(maxEncounteredSeverity)) {
maxEncounteredSeverity = severity;
}
// Only process the message if its severity is larger than the
// set minimum severity.
if (static_cast<int>(severity) >= static_cast<int>(minSeverity)) {
processMessage(
Message{severity, std::move(msg), std::move(pos), std::move(ctx)});
}
}
LoggerFork Logger::fork() { return LoggerFork{this, minSeverity}; }
/* Class LoggerFork */
void LoggerFork::processMessage(Message msg)
{
calls.push_back(Call(CallType::MESSAGE, messages.size()));
messages.push_back(msg);
}
void LoggerFork::processPushFile(File file)
{
calls.push_back(Call(CallType::PUSH_FILE, files.size()));
files.push_back(file);
}
void LoggerFork::processPopFile()
{
calls.push_back(Call(CallType::POP_FILE, 0));
}
void LoggerFork::commit()
{
for (const Call &call : calls) {
switch (call.type) {
case CallType::MESSAGE: {
const Message &msg = messages[call.dataIdx];
parent->log(msg.severity, msg.msg, msg.pos, msg.ctx);
break;
}
case CallType::PUSH_FILE: {
const File &file = files[call.dataIdx];
parent->pushFile(file.file, file.pos, file.ctx);
break;
}
case CallType::POP_FILE:
parent->popFile();
break;
}
}
}
/* Class Terminal */
class Terminal {
private:
/**
* If set to false, no control codes are generated.
*/
bool active;
public:
static const int BLACK = 30;
static const int RED = 31;
static const int GREEN = 32;
static const int YELLOW = 33;
static const int BLUE = 34;
static const int MAGENTA = 35;
static const int CYAN = 36;
static const int WHITE = 37;
Terminal(bool active) : active(active) {}
std::string color(int color, bool bright = true) const
{
if (!active) {
return std::string{};
}
std::stringstream ss;
ss << "\x1b[";
if (bright) {
ss << "1;";
}
ss << color << "m";
return ss.str();
}
std::string bright() const
{
if (!active) {
return std::string{};
}
std::stringstream ss;
ss << "\x1b[1m";
return ss.str();
}
std::string reset() const
{
if (!active) {
return std::string{};
}
return "\x1b[0m";
}
};
/* Class TerminalLogger */
/**
* Small class used internally for formated terminal output using ANSI/VT100
* escape codes on supported terminals.
*
* TODO: Deactivate if using windows or use the corresponding API function.
*/
std::string TerminalLogger::currentFilename()
{
if (!files.empty()) {
return files.top().file;
}
return std::string{};
}
void TerminalLogger::processMessage(Message msg)
{
Terminal t(useColor);
// Print the file name
std::string filename = currentFilename();
bool hasFile = !filename.empty();
if (hasFile) {
os << t.bright() << filename << t.reset();
}
// Print line and column number
if (msg.pos.hasLine()) {
if (hasFile) {
os << ':';
}
os << t.bright() << msg.pos.line << t.reset();
if (msg.pos.hasColumn()) {
os << ':' << msg.pos.column;
}
}
// Print the optional seperator
if (hasFile || msg.pos.hasLine()) {
os << ": ";
}
// Print the severity
switch (msg.severity) {
case Severity::DEBUG:
break;
case Severity::NOTE:
os << t.color(Terminal::CYAN, true) << "note: ";
break;
case Severity::WARNING:
os << t.color(Terminal::MAGENTA, true) << "warning: ";
break;
case Severity::ERROR:
os << t.color(Terminal::RED, true) << "error: ";
break;
case Severity::FATAL_ERROR:
os << t.color(Terminal::RED, true) << "fatal error: ";
break;
}
os << t.reset();
// Print the actual message
os << msg.msg << std::endl;
// Print the error message context if available
if (msg.ctx.valid()) {
size_t relPos = msg.ctx.relPos;
if (msg.ctx.truncatedStart) {
os << "[...] ";
relPos += 6;
}
os << msg.ctx.text;
if (msg.ctx.truncatedEnd) {
os << " [...]";
}
os << std::endl;
for (size_t i = 0; i < relPos; i++) {
os << ' ';
}
os << t.color(Terminal::GREEN) << '^' << t.reset() << std::endl;
}
}
void TerminalLogger::processPushFile(File file) { files.push(file); }
void TerminalLogger::processPopFile() { files.pop(); }
}
|
