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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
#include "stdafx.h"
#include "Compiler/Syntax/Regex.h"
using namespace storm::syntax;
static nat match(const wchar_t *regex, const wchar_t *str, nat start = 0) {
Engine &e = gEngine();
Regex r(new (e) Str(regex));
return r.matchRaw(new (e) Str(str), start);
}
static String tos(const wchar_t *regex) {
Engine &e = gEngine();
Regex r(new (e) Str(regex));
return ::toS(r);
}
BEGIN_TEST(RegexTest, Storm) {
/**
* To string and back.
*/
CHECK_EQ(tos(L"[abc]"), L"[a-c]");
CHECK_EQ(tos(L"[a-c]"), L"[a-c]");
CHECK_EQ(tos(L"[^abc]"), L"[^a-c]");
CHECK_EQ(tos(L"[^a-c]"), L"[^a-c]");
/**
* Simple matching.
*/
CHECK_EQ(match(L"abc", L"abcd"), 3);
CHECK_EQ(match(L"abb", L"abcd"), Regex::NO_MATCH);
/**
* Character groups.
*/
CHECK_EQ(match(L"[abc]", L"a"), 1);
CHECK_EQ(match(L"[abc]", L"b"), 1);
CHECK_EQ(match(L"[abc]", L"c"), 1);
CHECK_EQ(match(L"[abc]", L"d"), Regex::NO_MATCH);
CHECK_EQ(match(L"[a-c]", L"a"), 1);
CHECK_EQ(match(L"[a-c]", L"b"), 1);
CHECK_EQ(match(L"[a-c]", L"c"), 1);
CHECK_EQ(match(L"[a-c]", L"d"), Regex::NO_MATCH);
CHECK_EQ(match(L"[^abc]", L"d"), 1);
CHECK_EQ(match(L"[^abc]", L"a"), Regex::NO_MATCH);
CHECK_EQ(match(L"[^abc\\^]", L"^"), Regex::NO_MATCH);
/**
* Escape chars.
*/
CHECK_EQ(match(L"a\\.b", L"a.b"), 3);
CHECK_EQ(match(L"a\\.b", L"abb"), Regex::NO_MATCH);
CHECK_EQ(match(L"\\[", L"["), 1);
CHECK_EQ(match(L"[\\^]", L"^"), 1);
CHECK_EQ(match(L"[\\^]", L"a"), Regex::NO_MATCH);
CHECK_EQ(match(L"[^\\^]", L"^"), Regex::NO_MATCH);
CHECK_EQ(match(L"[^\\^]", L"a"), 1);
CHECK_EQ(match(L"[\\]]", L"]"), 1);
/**
* Check * matching
*/
CHECK_EQ(match(L"a*", L"aaaa"), 4);
CHECK_EQ(match(L"a*c", L"aaac"), 4);
CHECK_EQ(match(L"a*cd", L"cd"), 2);
CHECK_EQ(match(L"a*cd", L"acdef"), 3);
CHECK_EQ(match(L"a*cd", L"aef"), Regex::NO_MATCH);
CHECK_EQ(match(L"[abc]*d", L"acbd"), 4);
CHECK_EQ(match(L"[abc]*", L"acbabc"), 6);
CHECK_EQ(match(L"f[abc]*", L"f"), 1);
/**
* Check ? matching.
*/
CHECK_EQ(match(L"a?c", L"c"), 1);
CHECK_EQ(match(L"a?c", L"ac"), 2);
CHECK_EQ(match(L"[ab]?c", L"bc"), 2);
CHECK_EQ(match(L"[ab]?", L"a"), 1);
CHECK_EQ(match(L"f[ab]?", L"f"), 1);
/**
* . matching
*/
CHECK_EQ(match(L"a.c", L"adc"), 3);
CHECK_EQ(match(L"a.*c", L"afiskd"), Regex::NO_MATCH);
CHECK_EQ(match(L"a.*c", L"afiskc"), 6);
/**
* + matching.
*/
CHECK_EQ(match(L"a+c", L"c"), Regex::NO_MATCH);
CHECK_EQ(match(L"a+c", L"ac"), 2);
CHECK_EQ(match(L"a+c", L"aac"), 3);
CHECK_EQ(match(L"a+", L"aa"), 2);
CHECK_EQ(match(L"ba+", L"ba"), 2);
CHECK_EQ(match(L"ba+", L"b"), Regex::NO_MATCH);
/**
* Random tests.
*/
CHECK_EQ(match(L"[ab]*bcd..", L"abababcdba"), 10);
CHECK_EQ(match(L"[ab]*bcd[ab]*", L"abababcdba"), 10);
CHECK_EQ(match(L" *", L""), 0);
/**
* Check correct indexing when not searching from the start.
*/
CHECK_EQ(match(L"abc", L"aabcc", 1), 4);
CHECK_EQ(match(L"[abc]*", L"dabcd", 1), 4);
CHECK_EQ(match(L"a", L"zzz", 1), Regex::NO_MATCH);
/**
* Character ranges.
*/
CHECK_EQ(match(L"[1-9]*", L"12345"), 5);
CHECK_EQ(match(L"[1-35-8]*", L"12356"), 5);
CHECK_EQ(match(L"[1-35-8]*", L"1234"), 3);
/**
* Difference between 0 and NO_MATCH.
*/
CHECK_EQ(match(L"a*", L"b"), 0);
CHECK_EQ(match(L"a+", L"b"), Regex::NO_MATCH);
CHECK_EQ(match(L"a*", L"zb", 1), 1);
CHECK_EQ(match(L"a+", L"zb", 1), Regex::NO_MATCH);
/**
* Some real-world examples.
*/
CHECK_EQ(match(L"//.*[\n\r]", L"// comment\n"), 11);
CHECK_EQ(match(L"[ \n\r\t]*//.*[\n\r]", L" // comment\n"), 14);
CHECK_EQ(match(L"//.*[\n\r][ \n\r\t]*", L"// comment\n \n"), 14);
CHECK_EQ(match(L"[ \n\r\t]*//.*[\n\r][ \n\r\t]*", L" // comment\n \n"), 17);
CHECK_EQ(match(L"[^\\\"\\\\]*", L"Type"), 4);
} END_TEST
static nat match(const wchar *regex, size_t regexLen, const char *str, size_t strLen) {
Engine &e = gEngine();
Regex r(new (e) Str(regex, regex + regexLen));
return r.matchAll(buffer(e, (Byte *)str, (Nat)strLen));
}
BEGIN_TEST(RegexBuffer, Storm) {
// Basic matching.
CHECK(match(S("ab"), 2, "ab", 2)); // simple case
CHECK(match(S("a.c"), 3, "abc", 3)); // no repeat
CHECK(match(S("a.*d"), 4, "abcd", 4)); // complex
// Null-bytes in the binary.
CHECK(match(S("a.c"), 3, "a\0c", 3)); // no repeat
CHECK(match(S("a.*d"), 4, "a\0\0d", 4)); // complex
// Null-bytes in the regex.
CHECK(match(S("\0a"), 2, "\0a", 2)); // simple
CHECK(match(S(".\0"), 2, "\0\0", 2)); // no repeat
CHECK(match(S("\0+"), 2, "\0\0", 2)); // complex
// Null-bytes in groups.
CHECK(match(S("[a\0]+"), 5, "\0a\0", 3));
// Non-ascii bytes (handled differently on different platforms).
CHECK(match(S("\x80"), 1, "\x80", 1)); // simple
CHECK(match(S("[\x80\x81]z"), 5, "\x81z", 2)); // no repeat
CHECK(match(S("[\x80-\x82]*"), 6, "\x80\x81\x82", 3));
} END_TEST
|
