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
|
/* Copyright (C) 1997 Aladdin Enterprises. All rights reserved.
This file is part of GNU Ghostscript.
GNU Ghostscript is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to
anyone for the consequences of using it or for whether it serves any
particular purpose or works at all, unless he says so in writing. Refer to
the GNU General Public License for full details.
Everyone is granted permission to copy, modify and redistribute GNU
Ghostscript, but only under the conditions described in the GNU General
Public License. A copy of this license is supposed to have been given to
you along with GNU Ghostscript so you can know your rights and
responsibilities. It should be in a file named COPYING. Among other
things, the copyright notice and this notice must be preserved on all
copies.
Aladdin Enterprises is not affiliated with the Free Software Foundation or
the GNU Project. GNU Ghostscript, as distributed by Aladdin Enterprises,
does not depend on any other GNU software.
*/
/* gdevpstr.c */
/* Stream output for PostScript- and PDF-writing drivers */
#include "math_.h" /* for fabs */
#include "stdio_.h" /* for stream.h */
#include "string_.h" /* for strchr */
#include "gdevpstr.h"
#include "stream.h"
/* ------ Output ------ */
/* Put a byte array on a stream. */
int
pwrite(stream *s, const void *ptr, uint count)
{ uint used;
sputs(s, (const byte *)ptr, count, &used);
return (int)used;
}
/* Put a string on a stream. */
int
pputs(stream *s, const char *str)
{ uint len = strlen(str);
uint used;
int status = sputs(s, (const byte *)str, len, &used);
return (status >= 0 && used == len ? 0 : EOF);
}
/* Print a format string up to the first variable substitution. */
/* Return a pointer to the %, or to the terminating 0 if no % found. */
private const char *
pprintf_scan(stream *s, const char *format)
{ const char *fp = format;
for ( ; *fp != 0; ++fp )
{ if ( *fp == '%' )
{ if ( fp[1] != '%' )
break;
++fp;
}
sputc(s, *fp);
}
return fp;
}
/* Print (an) int value(s) using a format. */
const char *
pprintd1(stream *s, const char *format, int v)
{ const char *fp = pprintf_scan(s, format);
char str[25];
#ifdef DEBUG
if ( *fp == 0 || fp[1] != 'd') /* shouldn't happen! */
lprintf1("Bad format in pprintd1: %s\n", format);
#endif
sprintf(str, "%d", v);
pputs(s, str);
return pprintf_scan(s, fp + 2);
}
const char *
pprintd2(stream *s, const char *format, int v1, int v2)
{ return pprintd1(s, pprintd1(s, format, v1), v2);
}
/* Print (a) floating point number(s) using a format. */
/* See gdevpdfx.h for why this is needed. */
const char *
pprintg1(stream *s, const char *format, floatp v)
{ const char *fp = pprintf_scan(s, format);
char str[50];
#ifdef DEBUG
if ( *fp == 0 || fp[1] != 'g' ) /* shouldn't happen! */
lprintf1("Bad format in pprintg: %s\n", format);
#endif
sprintf(str, "%g", v);
if ( strchr(str, 'e') )
{ /* Bad news. Try again using f-format. */
sprintf(str, (fabs(v) > 1 ? "%1.1f" : "%1.8f"), v);
}
pputs(s, str);
return pprintf_scan(s, fp + 2);
}
const char *
pprintg2(stream *s, const char *format, floatp v1, floatp v2)
{ return pprintg1(s, pprintg1(s, format, v1), v2);
}
const char *
pprintg4(stream *s, const char *format, floatp v1, floatp v2, floatp v3,
floatp v4)
{ return pprintg2(s, pprintg2(s, format, v1, v2), v3, v4);
}
/* Print a long value using a format. */
const char *
pprintld1(stream *s, const char *format, long v)
{ const char *fp = pprintf_scan(s, format);
char str[25];
#ifdef DEBUG
if ( *fp == 0 || fp[1] != 'l' || fp[2] != 'd') /* shouldn't happen! */
lprintf1("Bad format in pprintld: %s\n", format);
#endif
sprintf(str, "%ld", v);
pputs(s, str);
return pprintf_scan(s, fp + 3);
}
/* Print (a) string(s) using a format. */
const char *
pprints1(stream *s, const char *format, const char *str)
{ const char *fp = pprintf_scan(s, format);
#ifdef DEBUG
if ( *fp == 0 || fp[1] != 's' ) /* shouldn't happen! */
lprintf1("Bad format in pprints: %s\n", format);
#endif
pputs(s, str);
return pprintf_scan(s, fp + 2);
}
const char *
pprints2(stream *s, const char *format, const char *str1, const char *str2)
{ return pprints1(s, pprints1(s, format, str1), str2);
}
|
