blob: 081f1bcd941b3f66c7c35770344433ccd43dbee4 (
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
86
87
88
89
90
91
92
93
94
|
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1986-2007 AT&T Knowledge Ventures *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Knowledge Ventures *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* cpp predefined symbol detection support
*
* with no args stdin is treated as an a.out for
* a Reiser derived cpp -- all strings that may
* be identifiers are listed on fd 3 (1 if no 3)
*
* with args the -D argument values are listed on fd 3 (1 if no 3)
*/
#include <ast.h>
#include <ctype.h>
int
main(int argc, char** argv)
{
register int state;
register int c;
register char* s;
Sfio_t* out;
NoP(argc);
if (dup(3) < 0 || !(out = sfnew(NiL, NiL, -1, 3, SF_WRITE)))
out = sfstdout;
if (*++argv)
{
while (s = *argv++)
if (*s++ == '-' && *s++ == 'D' && isalpha(*s))
{
while (*s && *s != '=') sfputc(out, *s++);
sfputc(out, '\n');
}
return 0;
}
state = 0;
for (;;)
{
switch (c = sfgetc(sfstdin))
{
case EOF:
break;
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
case 's': case 't': case 'u': case 'v': case 'w': case 'x':
case 'y': case 'z': case '_':
case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
state++;
sfputc(out, c);
continue;
case '0': case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
if (state)
{
sfputc(out, c);
continue;
}
/*FALLTHROUGH*/
default:
if (state)
{
sfputc(out, '\n');
state = 0;
}
continue;
}
break;
}
return 0;
}
|
