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
|
/*
* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#ifndef PATMATCH_H
#define PATMATCH_H
#include "kernel/yosys.h"
YOSYS_NAMESPACE_BEGIN
// this is very similar to fnmatch(). the exact rules used by this
// function are:
//
// ? matches any character except
// * matches any sequence of characters
// [...] matches any of the characters in the list
// [!..] matches any of the characters not in the list
//
// a backslash may be used to escape the next characters in the
// pattern. each special character can also simply match itself.
//
static bool patmatch(const char *pattern, const char *string)
{
if (*pattern == 0)
return *string == 0;
if (*pattern == '\\') {
if (pattern[1] == string[0] && patmatch(pattern+2, string+1))
return true;
}
if (*pattern == '?') {
if (*string == 0)
return false;
return patmatch(pattern+1, string+1);
}
if (*pattern == '*') {
while (*string) {
if (patmatch(pattern+1, string++))
return true;
}
return pattern[1] == 0;
}
if (*pattern == '[') {
bool found_match = false;
bool inverted_list = pattern[1] == '!';
const char *p = pattern + (inverted_list ? 1 : 0);
while (*++p) {
if (*p == ']') {
if (found_match != inverted_list && patmatch(p+1, string+1))
return true;
break;
}
if (*p == '\\') {
if (*++p == *string)
found_match = true;
} else
if (*p == *string)
found_match = true;
}
}
if (*pattern == *string)
return patmatch(pattern+1, string+1);
return false;
}
YOSYS_NAMESPACE_END
#endif
|
