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
|
//========================================================================
//
// ocfile.cpp
//
// Drop-in replacement for C <stdio.h> FILE
//
//========================================================================
#include "ocfile.h"
#include <qfile.h>
#include <qstring.h>
#include <list>
#include <cassert>
// --------------------------------------------------------------------
// This function is from Xpdf.
// It is here since the file that contained it originally is gone.
char *getLine(char *buf, int size, OCFILE *f)
{
int c, i;
i = 0;
while (i < size - 1) {
if ((c = fgetc(f)) == EOF) {
break;
}
buf[i++] = (char)c;
if (c == '\x0a') {
break;
}
if (c == '\x0d') {
c = fgetc(f);
if (c == '\x0a' && i < size - 1) {
buf[i++] = (char)c;
} else if (c != EOF) {
ungetc(c, f);
}
break;
}
}
buf[i] = '\0';
if (i == 0) {
return NULL;
}
return buf;
}
// --------------------------------------------------------------------
/* All files ever opened are kept here. */
class OcFileStore {
public:
OCFILE *Open(const char *name, const char *mode);
OCFILE *Open(QIODevice *device);
~OcFileStore();
private:
std::list<OCFILE> iFiles;
};
static OcFileStore store;
OcFileStore::~OcFileStore()
{
for (std::list<OCFILE>::iterator it = iFiles.begin();
it != iFiles.end(); ++it) {
if (it->iDevice) {
delete it->iDevice;
it->iDevice = 0;
}
}
}
OCFILE *OcFileStore::Open(const char *name, const char *mode)
{
QFile *file = new QFile(QString::fromUtf8(name));
int m = (mode[0] == 'w') ? IO_WriteOnly : IO_ReadOnly;
if (!file->open(m)) {
delete file;
return 0;
}
iFiles.push_back(OCFILE());
iFiles.back().iDevice = file;
return &iFiles.back();
}
OCFILE *OcFileStore::Open(QIODevice *device)
{
iFiles.push_back(OCFILE());
iFiles.back().iDevice = device;
return &iFiles.back();
}
// --------------------------------------------------------------------
extern OCFILE *ocfopen(const char *name, const char *mode)
{
return store.Open(name, mode);
}
extern OCFILE *ocfopen(QIODevice *device)
{
return store.Open(device);
}
extern void fclose(OCFILE *f)
{
f->iDevice->close();
f->iDevice = 0;
}
extern size_t fwrite(const void *buf, size_t size, size_t count, OCFILE *f)
{
assert(size == 1);
return f->iDevice->writeBlock((const char *) buf, count);
}
extern size_t fread(void *buf, size_t size, size_t count, OCFILE *f)
{
assert(size == 1);
return f->iDevice->readBlock((char *) buf, count);
}
extern int fseek(OCFILE *f, long offset, int whence)
{
if (!f->iDevice)
return -1;
bool res;
if (whence == SEEK_SET)
res = f->iDevice->at(offset);
else if (whence == SEEK_END)
res = f->iDevice->at(offset + f->iDevice->size());
else
assert(false);
return res ? 0 : -1;
}
extern long ftell(OCFILE *f)
{
return f->iDevice->at();
}
extern int fgetc(OCFILE *f)
{
return f->iDevice->getch();
}
extern int fputc(int ch, OCFILE *f)
{
return f->iDevice->putch(ch);
}
extern void ungetc(int ch, OCFILE *f)
{
f->iDevice->ungetch(ch);
}
extern void fputs(const char *s, OCFILE *f)
{
f->iDevice->writeBlock(s, strlen(s));
}
extern void fprintf(OCFILE *f, const char *fmt, int a1, int a2)
{
char buf[30];
sprintf(buf, fmt, a1, a2);
f->iDevice->writeBlock(buf, strlen(buf));
}
extern void fprintf(OCFILE *f, const char *fmt, const char *s)
{
assert(strlen(fmt) + strlen(s) < 200);
char buf[200];
sprintf(buf, fmt, s);
f->iDevice->writeBlock(buf, strlen(buf));
}
// --------------------------------------------------------------------
|
