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
230
231
232
233
234
235
236
237
238
239
240
|
/*
*
* General purpose routines.
*
*/
#include <u.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include "gen.h"
#include "ext.h"
#include "path.h"
int nolist = 0; /* number of specified ranges */
int olist[50]; /* processing range pairs */
int str_convert(char **str, int err);
void error(int kind, char *mesg, unsigned int a1, unsigned int a2, unsigned int a3);
int cat(char *file);
/*****************************************************************************/
void
out_list(str)
char *str;
{
int start, stop;
/*
*
* Grab page ranges from str, save them in olist[], and update the nolist
* count. Range syntax matches nroff/troff syntax.
*
*/
while ( *str && nolist < sizeof(olist) - 2 ) {
start = stop = str_convert(&str, 0);
if ( *str == '-' && *str++ )
stop = str_convert(&str, 9999);
if ( start > stop )
error(FATAL, "illegal range %d-%d", start, stop, 0);
olist[nolist++] = start;
olist[nolist++] = stop;
if ( *str != '\0' ) str++;
} /* End while */
olist[nolist] = 0;
} /* End of out_list */
/*****************************************************************************/
int
in_olist(num)
int num;
{
int i;
/*
*
* Return ON if num is in the current page range list. Print everything if
* there's no list.
*
*/
if ( nolist == 0 )
return(ON);
for ( i = 0; i < nolist; i += 2 )
if ( num >= olist[i] && num <= olist[i+1] )
return(ON);
return(OFF);
} /* End of in_olist */
/*****************************************************************************/
void
setencoding(name)
char *name;
{
char path[150];
/*
*
* Include the font encoding file selected by name. It's a full pathname if
* it begins with /, otherwise append suffix ".enc" and look for the file in
* ENCODINGDIR. Missing files are silently ignored.
*
*/
if ( name == NULL )
name = "Default";
if ( *name == '/' )
strcpy(path, name);
else sprintf(path, "%s/%s.enc", ENCODINGDIR, name);
if ( cat(path) == TRUE )
writing = strncmp(name, "UTF", 3) == 0;
} /* End of setencoding */
/*****************************************************************************/
int
cat(file)
char *file;
{
int fd_in;
int fd_out;
char buf[512];
int count;
/*
*
* Copy *file to stdout. Return FALSE is there was a problem.
*
*/
fflush(stdout);
if ( (fd_in = open(file, O_RDONLY)) == -1 )
return(FALSE);
fd_out = fileno(stdout);
while ( (count = read(fd_in, buf, sizeof(buf))) > 0 )
write(fd_out, buf, count);
close(fd_in);
return(TRUE);
} /* End of cat */
/*****************************************************************************/
int
str_convert(str, err)
char **str;
int err;
{
int i;
/*
*
* Grab the next integer from **str and return its value or err if *str
* isn't an integer. *str is modified after each digit is read.
*
*/
if ( ! isdigit((uchar)**str) )
return(err);
for ( i = 0; isdigit((uchar)**str); *str += 1 )
i = 10 * i + **str - '0';
return(i);
} /* End of str_convert */
/*****************************************************************************/
void
error(kind, mesg, a1, a2, a3)
int kind;
char *mesg;
unsigned a1, a2, a3;
{
/*
*
* Print an error message and quit if kind is FATAL.
*
*/
if ( mesg != NULL && *mesg != '\0' ) {
fprintf(stderr, "%s: ", prog_name);
fprintf(stderr, mesg, a1, a2, a3);
if ( lineno > 0 )
fprintf(stderr, " (line %ld)", lineno);
if ( position > 0 )
fprintf(stderr, " (near byte %ld)", position);
putc('\n', stderr);
} /* End if */
if ( kind == FATAL && ignore == OFF ) {
if ( temp_file != NULL )
unlink(temp_file);
exit(x_stat | 01);
} /* End if */
} /* End of error */
/*****************************************************************************/
void interrupt(sig)
int sig;
{
/*
*
* Signal handler for translators.
*
*/
if ( temp_file != NULL )
unlink(temp_file);
exit(1);
} /* End of interrupt */
/*****************************************************************************/
|