blob: 6428ebf5dfc0bc3e8bb9f35b4ed12605bf1b10ef (
plain)
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
|
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* standalone mini ast+sfio implementation
*/
#include <ast.h>
#define CHUNK 1024
_Ast_info_t ast;
int
astwinsize(int fd, int* lines, int* columns)
{
if (lines)
*lines = 24;
if (columns)
*columns = 80;
return 0;
}
char*
sfgetr(Sfio_t* sp, int c, int z)
{
register char* s;
register char* e;
static char* buf;
static unsigned long siz;
if (!buf)
{
siz = CHUNK;
if (!(buf = newof(0, char, siz, 0)))
return 0;
}
if (z < 0)
return *buf ? buf : (char*)0;
s = buf;
e = s + siz;
for (;;)
{
if (s >= e)
{
siz += CHUNK;
if (!(buf = newof(buf, char, siz, 0)))
return 0;
s = buf + (siz - CHUNK);
e = s + siz;
}
if ((c = sfgetc(sp)) == EOF)
{
*s = 0;
return 0;
}
if (c == '\n')
{
*s = z ? 0 : c;
break;
}
*s++ = c;
}
return buf;
}
|
