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
|
/*** /
This file is part of Golly, a Game of Life Simulator.
Copyright (C) 2011 Andrew Trevorrow and Tomas Rokicki.
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 2
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Web site: http://sourceforge.net/projects/golly
Authors: rokicki@gmail.com andrew@trevorrow.com
/ ***/
#include "util.h"
#include <stdio.h>
#include <stdlib.h>
/**
* For now error just uses stderr.
*/
class baselifeerrors : public lifeerrors {
public:
virtual void fatal(const char *s) {
fprintf(stderr, "%s\n", s) ;
exit(10) ;
}
virtual void warning(const char *s) {
fprintf(stderr, "%s\n", s) ;
}
virtual void status(const char *s) {
fprintf(stderr, "%s\n", s) ;
}
virtual void beginprogress(const char *) {
aborted = false ;
}
virtual bool abortprogress(double, const char *) {
return false ;
}
virtual void endprogress() {
// do nothing
}
virtual const char *getuserrules() {
return "" ;
}
virtual const char *getrulesdir() {
return "" ;
}
} ;
baselifeerrors baselifeerrors ;
lifeerrors *errorhandler = &baselifeerrors ;
void lifeerrors::seterrorhandler(lifeerrors *o) {
if (o == 0)
errorhandler = &baselifeerrors ;
else
errorhandler = o ;
}
void lifefatal(const char *s) {
errorhandler->fatal(s) ;
}
void lifewarning(const char *s) {
errorhandler->warning(s) ;
}
void lifestatus(const char *s) {
errorhandler->status(s) ;
}
void lifebeginprogress(const char *dlgtitle) {
errorhandler->beginprogress(dlgtitle) ;
}
bool lifeabortprogress(double fracdone, const char *newmsg) {
return errorhandler->aborted |=
errorhandler->abortprogress(fracdone, newmsg) ;
}
bool isaborted() {
return errorhandler->aborted ;
}
void lifeendprogress() {
errorhandler->endprogress() ;
}
const char *lifegetuserrules() {
return errorhandler->getuserrules() ;
}
const char *lifegetrulesdir() {
return errorhandler->getrulesdir() ;
}
static FILE *f ;
FILE *getdebugfile() {
if (f == 0)
f = fopen("trace.txt", "w") ;
return f ;
}
/**
* Manage reading lines from a FILE* without worrying about
* line terminates. Note that the fgets() routine does not
* insert any line termination characters at all.
*/
linereader::linereader(FILE *f) {
setfile(f) ;
}
void linereader::setfile(FILE *f) {
fp = f ;
lastchar = 0 ;
closeonfree = 0 ; // AKT: avoid crash on Linux
}
void linereader::setcloseonfree() {
closeonfree = 1 ;
}
int linereader::close() {
if (fp) {
return fclose(fp) ;
fp = 0 ;
}
return 0 ;
}
linereader::~linereader() {
if (closeonfree)
close() ;
}
const int LF = 10 ;
const int CR = 13 ;
char *linereader::fgets(char *buf, int maxlen) {
int i = 0 ;
for (;;) {
if (i+1 >= maxlen) {
buf[i] = 0 ;
return buf ;
}
int c = getc(fp) ;
switch (c) {
case EOF:
if (i == 0)
return 0 ;
buf[i] = 0 ;
return buf ;
case LF:
if (lastchar != CR) {
lastchar = LF ;
buf[i] = 0 ;
return buf ;
}
break ;
case CR:
lastchar = CR ;
buf[i] = 0 ;
return buf ;
default:
lastchar = c ;
buf[i++] = (char)c ;
break ;
}
}
}
|
