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
|
/* fontmap.c: read a file for additional font names.
Copyright (C) 1993, 2011 Free Software Foundation, Inc.
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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "config.h"
#include "c-pathmx.h"
#include "fontmap.h"
/* Fontname mapping. We use a straightforward hash table. */
#define MAP_SIZE 199
/* The hash function. We go for simplicity here. */
static unsigned
map_hash (key)
char *key;
{
unsigned n = 0;
/* There are very few font names which are anagrams of each other (I
think), so no point in weighting the characters. */
while (*key != 0)
n += *key++;
n %= MAP_SIZE;
return n;
}
/* Look up STR in MAP. Return the corresponding `value' or NULL. */
static char *
map_lookup_str (map, key)
map_type map;
char *key;
{
map_element_type *p;
unsigned n = map_hash (key);
for (p = map[n]; p != NULL; p = p->next)
if (STREQ (key, p->key))
return p->value;
return NULL;
}
/* Look up KEY in MAP; if it's not found, remove any suffix from KEY and
try again. */
char *
map_lookup (map, key)
map_type map;
char *key;
{
extern string extend_filename ();
string suffix = find_suffix (key);
string ret = map_lookup_str (map, key);
if (!ret)
{
/* OK, the original KEY didn't work. Let's check for the KEY without
an extension -- perhaps they gave foobar.tfm, but the mapping only
defines `foobar'. */
if (suffix)
{
string base_key = remove_suffix (key);
ret = map_lookup_str (map, base_key);
free (base_key);
}
}
/* Append the same suffix we took off, if necessary. */
if (ret && suffix)
ret = extend_filename (ret, suffix);
return ret;
}
/* If KEY is not already in MAP, insert it and VALUE. */
static void
map_insert (map, key, value)
map_type map;
char *key;
char *value;
{
unsigned n = map_hash (key);
map_element_type **p = &map[n];
map_element_type ***trailer = &p;
while (*p != NULL && !STREQ (key, (*p)->key))
{
*p = (*p)->next;
trailer = &p;
}
if (*p == NULL)
{
**trailer = XTALLOC (MAP_SIZE, map_element_type);
(**trailer)->key = xstrdup (key);
(**trailer)->value = xstrdup (value);
(**trailer)->next = NULL;
}
}
/* Open and read the mapping file FILENAME, putting its entries into
MAP. Comments begin with % and continue to the end of the line. Each
line of the file defines an entry: the first word is the real
filename (e.g., `ptmr'), the second word is the alias (e.g.,
`Times-Roman'), and any subsequent words are ignored. .tfm is added
if either the filename or the alias have no extension. This is the
same order as in Dvips' psfonts.map; unfortunately, we can't have TeX
read that same file, since most of the real filenames start with an
`r', because of the virtual fonts Dvips uses. */
static void
map_file_parse (map, map_filename)
map_type map;
char *map_filename;
{
extern FILE *xfopen (); /* In xfopen.c. */
extern char *read_line (); /* In line.c. */
char *l;
unsigned map_lineno = 0;
FILE *f = xfopen (map_filename, FOPEN_R_MODE);
while ((l = read_line (f)) != NULL)
{
string filename;
string comment_loc = strrchr (l, '%');
map_lineno++;
/* Ignore anything after a %. */
if (comment_loc)
*comment_loc = 0;
/* If we don't have any filename, that's ok, the line is blank. */
filename = strtok (l, " \t");
if (filename)
{
string alias = strtok (NULL, " \t");
/* But if we have a filename and no alias, something's wrong. */
if (alias == NULL || *alias == 0)
fprintf (stderr, "%s:%u: Alias missing for filename `%s'.\n",
map_filename, map_lineno, filename);
else
{
/* We've got everything. Insert the new entry. */
map_insert (map, alias, filename);
}
}
free (l);
}
xfclose (f, map_filename);
}
/* Look for the file `texfonts.map' in each of the directories in
DIR_LIST. Entries in earlier files override later files. */
map_type
map_create (dir_list)
string *dir_list;
{
map_type map = (map_type) xcalloc (MAP_SIZE, sizeof (map_element_type *));
while (*dir_list)
{
char filename[PATH_MAX];
/* We don't bother with the filename truncation that `readable' in
`pathsrch.c' does, since we ourselves are giving the filename,
and I don't think it's worth worrying about too-long
intermediate directory names in the path. */
strcpy (filename, *dir_list);
strcat (filename, "texfonts.map");
if (access (filename, R_OK) == 0)
map_file_parse (map, filename);
dir_list++;
}
return map;
}
|
