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
|
/* enc.c */
/************************************************************************
Part of the dvipng distribution
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.
Copyright (C) 2002-2005 Jan-Åke Larsson
************************************************************************/
#include "dvipng.h"
struct encoding* encodingp=NULL;
struct encoding* InitEncoding(char* encoding)
{
char *pos,*max,*buf,*enc_file;
int i;
struct encoding* encp=NULL;
struct filemmap fmmap;
#ifdef HAVE_KPSE_ENC_FORMATS
TEMPSTR(enc_file,kpse_find_file(encoding,kpse_enc_format,false));
#else
TEMPSTR(enc_file,kpse_find_file(encoding,kpse_tex_ps_header_format,false));
#endif
if (enc_file == NULL) {
Warning("encoding file %s could not be found",encoding);
return(NULL);
}
DEBUG_PRINT((DEBUG_FT|DEBUG_ENC),("\n OPEN ENCODING:\t'%s'", enc_file));
if (MmapFile(enc_file,&fmmap)) return(NULL);
if ((encp = calloc(sizeof(struct encoding)+strlen(encoding)+1
+fmmap.size,1))==NULL) {
Warning("cannot alloc space for encoding",enc_file);
UnMmapFile(&fmmap);
return(NULL);
}
encp->name=(char*)encp+sizeof(struct encoding);
strcpy(encp->name,encoding);
pos=fmmap.mmap;
max=fmmap.mmap+fmmap.size;
buf=encp->name+strlen(encoding)+1;
#define SKIPCOMMENT(x) if (*x=='%') while (x<max && *x!='\n') x++;
while(pos<max && *pos!='/') {
SKIPCOMMENT(pos);
pos++;
}
pos++;
encp->charname[256]=buf;
while(pos<max && *pos!='['
&& *pos!=' ' && *pos!='\t' && *pos!='\n' && *pos!='%')
*buf++=*pos++;
*buf++='\0';
DEBUG_PRINT(DEBUG_ENC,("\n PS ENCODING '%s'",
encp->charname[256]));
while (pos < max && *pos!='[') {
SKIPCOMMENT(pos);
pos++;
}
while(pos<max && *pos!='/') {
SKIPCOMMENT(pos);
pos++;
}
i=0;
while(pos<max && *pos!=']') {
pos++;
encp->charname[i++]=buf;
while(pos<max && *pos!=' ' && *pos!='\t' && *pos!='\n' && *pos!='%')
*buf++=*pos++;
*buf++='\0';
DEBUG_PRINT(DEBUG_ENC,("\n PS ENCODING %d '%s'",
i-1,encp->charname[i-1]));
while(pos<max && *pos!='/' && *pos!=']') {
SKIPCOMMENT(pos);
pos++;
}
}
UnMmapFile(&fmmap);
return(encp);
}
struct encoding* FindEncoding(char* encoding)
{
struct encoding *temp=encodingp;
/* printf("{%s} \n",encoding); */
while(temp!=NULL && strcmp(encoding,temp->name)!=0)
temp=temp->next;
if (temp==NULL) {
temp=InitEncoding(encoding);
if (temp!=NULL) {
temp->next=encodingp;
encodingp=temp;
}
}
return(temp);
}
void ClearEncoding(void)
{
struct encoding *temp=encodingp;
while(temp!=NULL) {
encodingp=encodingp->next;
free(temp);
temp=encodingp;
}
}
|
