Commit | Line | Data |
---|---|---|
446ee5b1 WD |
1 | /* |
2 | ** Do shell-style pattern matching for ?, \, [], and * characters. | |
3 | ** It is 8bit clean. | |
4 | ** | |
5 | ** Written by Rich $alz, mirror!rs, Wed Nov 26 19:03:17 EST 1986. | |
6 | ** Rich $alz is now <rsalz@bbn.com>. | |
7 | ** | |
7a1f46b6 WD |
8 | ** Modified by Wayne Davison to special-case '/' matching, to make '**' |
9 | ** work differently than '*', and to fix the character-class code. | |
446ee5b1 WD |
10 | */ |
11 | ||
12 | #include "rsync.h" | |
13 | ||
14 | /* What character marks an inverted character class? */ | |
15 | #define NEGATE_CLASS '!' | |
16 | ||
710faea9 WD |
17 | #define FALSE 0 |
18 | #define TRUE 1 | |
19 | #define ABORT -1 | |
446ee5b1 | 20 | |
710faea9 | 21 | static int domatch(const char *p, const char *text) |
446ee5b1 WD |
22 | { |
23 | int matched, special; | |
24 | char ch, prev; | |
25 | ||
26 | for ( ; (ch = *p) != '\0'; text++, p++) { | |
27 | if (*text == '\0' && ch != '*') | |
710faea9 | 28 | return FALSE; |
446ee5b1 WD |
29 | switch (ch) { |
30 | case '\\': | |
31 | /* Literal match with following character. Note that the test | |
32 | * in "default" handles the p[1] == '\0' failure case. */ | |
33 | ch = *++p; | |
34 | /* FALLTHROUGH */ | |
35 | default: | |
36 | if (*text != ch) | |
710faea9 | 37 | return FALSE; |
446ee5b1 WD |
38 | continue; |
39 | case '?': | |
40 | /* Match anything but '/'. */ | |
41 | if (*text == '/') | |
710faea9 | 42 | return FALSE; |
446ee5b1 WD |
43 | continue; |
44 | case '*': | |
45 | if (*++p == '*') { | |
46 | while (*++p == '*') {} | |
710faea9 | 47 | special = TRUE; |
446ee5b1 WD |
48 | } |
49 | else | |
710faea9 | 50 | special = FALSE; |
446ee5b1 | 51 | if (*p == '\0') { |
710faea9 WD |
52 | /* Trailing "**" matches everything. Trailing "*" matches |
53 | * only if there are no more slash characters. */ | |
54 | return special? TRUE : strchr(text, '/') == 0; | |
446ee5b1 WD |
55 | } |
56 | for ( ; *text; text++) { | |
710faea9 WD |
57 | if ((matched = domatch(p, text)) != FALSE) |
58 | return matched; | |
446ee5b1 | 59 | if (!special && *text == '/') |
710faea9 | 60 | return FALSE; |
446ee5b1 | 61 | } |
710faea9 | 62 | return ABORT; |
446ee5b1 | 63 | case '[': |
710faea9 | 64 | special = *++p == NEGATE_CLASS ? TRUE : FALSE; |
446ee5b1 WD |
65 | if (special) { |
66 | /* Inverted character class. */ | |
67 | p++; | |
68 | } | |
69 | prev = 0; | |
710faea9 | 70 | matched = FALSE; |
446ee5b1 WD |
71 | ch = *p; |
72 | if (ch == ']' || ch == '-') { | |
73 | if (*text == ch) | |
710faea9 | 74 | matched = TRUE; |
446ee5b1 WD |
75 | prev = ch; |
76 | ch = *++p; | |
77 | } | |
78 | for ( ; ch != ']'; prev = ch, ch = *++p) { | |
79 | if (!ch) | |
710faea9 | 80 | return FALSE; |
446ee5b1 WD |
81 | if (ch == '-' && prev && p[1] && p[1] != ']') { |
82 | if (*text <= *++p && *text >= prev) | |
710faea9 | 83 | matched = TRUE; |
7a1f46b6 | 84 | ch = 0; /* This makes "prev" get set to 0. */ |
446ee5b1 WD |
85 | } |
86 | else if (*text == ch) | |
710faea9 | 87 | matched = TRUE; |
446ee5b1 WD |
88 | } |
89 | if (matched == special) | |
710faea9 | 90 | return FALSE; |
446ee5b1 WD |
91 | continue; |
92 | } | |
93 | } | |
94 | ||
95 | return *text == '\0'; | |
96 | } | |
710faea9 WD |
97 | |
98 | int wildmatch(const char *p, const char *text) | |
99 | { | |
100 | return domatch(p, text) == TRUE; | |
101 | } |