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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
import re, random, py
from rpython.rlib.rsre import rsre_char, rsre_constants
from rpython.rlib.rsre.rpy import get_code, VERSION
from rpython.rlib.rsre.test.support import match, fullmatch, Position as P
def get_code_and_re(regexp):
return get_code(regexp), re.compile(regexp)
def test_get_code_repetition():
c1 = get_code(r"a+")
c2 = get_code(r"a+")
assert c1.pattern == c2.pattern
class TestMatch:
def test_or(self):
r = get_code(r"a|bc|def")
assert match(r, "a")
assert match(r, "bc")
assert match(r, "def")
assert not match(r, "ghij")
def test_any(self):
r = get_code(r"ab.cd")
assert match(r, "abXcdef")
assert not match(r, "ab\ncdef")
assert not match(r, "abXcDef")
def test_any_repetition(self):
r = get_code(r"ab.*cd")
assert match(r, "abXXXXcdef")
assert match(r, "abcdef")
assert not match(r, "abX\nXcdef")
assert not match(r, "abXXXXcDef")
def test_any_all(self):
r = get_code(r"(?s)ab.cd")
assert match(r, "abXcdef")
assert match(r, "ab\ncdef")
assert not match(r, "ab\ncDef")
def test_any_all_repetition(self):
r = get_code(r"(?s)ab.*cd")
assert match(r, "abXXXXcdef")
assert match(r, "abcdef")
assert match(r, "abX\nXcdef")
assert not match(r, "abX\nXcDef")
def test_assert(self):
r = get_code(r"abc(?=def)(.)")
res = match(r, "abcdefghi")
assert res is not None and res.get_mark(1) == P(4)
assert not match(r, "abcdeFghi")
def test_assert_not(self):
r = get_code(r"abc(?!def)(.)")
res = match(r, "abcdeFghi")
assert res is not None and res.get_mark(1) == P(4)
assert not match(r, "abcdefghi")
def test_lookbehind(self):
r = get_code(r"([a-z]*)(?<=de)")
assert match(r, "ade")
res = match(r, "adefg")
assert res is not None and res.get_mark(1) == P(3)
assert not match(r, "abc")
assert not match(r, "X")
assert not match(r, "eX")
def test_negative_lookbehind(self):
def found(s):
res = match(r, s)
assert res is not None
return res.get_mark(1)
r = get_code(r"([a-z]*)(?<!dd)")
assert found("ade") == P(3)
assert found("adefg") == P(5)
assert found("abcdd") == P(4)
assert found("abddd") == P(3)
assert found("adddd") == P(2)
assert found("ddddd") == P(1)
assert found("abXde") == P(2)
def test_at(self):
r = get_code(r"abc$")
assert match(r, "abc")
assert not match(r, "abcd")
assert not match(r, "ab")
def test_repeated_set(self):
r = get_code(r"[a0x]+f")
assert match(r, "a0af")
assert not match(r, "a0yaf")
def test_category(self):
r = get_code(r"[\sx]")
assert match(r, "x")
assert match(r, " ")
assert not match(r, "n")
def test_groupref(self):
r = get_code(r"(xx+)\1+$") # match non-prime numbers of x
assert not match(r, "xx")
assert not match(r, "xxx")
assert match(r, "xxxx")
assert not match(r, "xxxxx")
assert match(r, "xxxxxx")
assert not match(r, "xxxxxxx")
assert match(r, "xxxxxxxx")
assert match(r, "xxxxxxxxx")
def test_groupref_ignore(self):
r = get_code(r"(?i)(xx+)\1+$") # match non-prime numbers of x
assert not match(r, "xX")
assert not match(r, "xxX")
assert match(r, "Xxxx")
assert not match(r, "xxxXx")
assert match(r, "xXxxxx")
assert not match(r, "xxxXxxx")
assert match(r, "xxxxxxXx")
assert match(r, "xxxXxxxxx")
def test_groupref_exists(self):
r = get_code(r"((a)|(b))c(?(2)d)$")
assert not match(r, "ac")
assert match(r, "acd")
assert match(r, "bc")
assert not match(r, "bcd")
#
r = get_code(r"((a)|(b))c(?(2)d|e)$")
assert not match(r, "ac")
assert match(r, "acd")
assert not match(r, "ace")
assert not match(r, "bc")
assert not match(r, "bcd")
assert match(r, "bce")
def test_in_ignore(self):
r = get_code(r"(?i)[a-f]")
assert match(r, "b")
assert match(r, "C")
assert not match(r, "g")
r = get_code(r"(?i)[a-f]+$")
assert match(r, "bCdEf")
assert not match(r, "g")
assert not match(r, "aaagaaa")
def test_not_literal(self):
r = get_code(r"[^a]")
assert match(r, "A")
assert not match(r, "a")
r = get_code(r"[^a]+$")
assert match(r, "Bx123")
assert not match(r, "--a--")
def test_not_literal_ignore(self):
r = get_code(r"(?i)[^a]")
assert match(r, "G")
assert not match(r, "a")
assert not match(r, "A")
r = get_code(r"(?i)[^a]+$")
assert match(r, "Gx123")
assert not match(r, "--A--")
def test_repeated_single_character_pattern(self):
r = get_code(r"foo(?:(?<=foo)x)+$")
assert match(r, "foox")
def test_flatten_marks(self):
r = get_code(r"a(b)c((d)(e))+$")
res = match(r, "abcdedede")
assert res.flatten_marks() == map(P, [0, 9, 1, 2, 7, 9, 7, 8, 8, 9])
assert res.flatten_marks() == map(P, [0, 9, 1, 2, 7, 9, 7, 8, 8, 9])
def test_bug1(self):
# REPEAT_ONE inside REPEAT
r = get_code(r"(?:.+)?B")
assert match(r, "AB") is not None
r = get_code(r"(?:AA+?)+B")
assert match(r, "AAAB") is not None
r = get_code(r"(?:AA+)+?B")
assert match(r, "AAAB") is not None
r = get_code(r"(?:AA+?)+?B")
assert match(r, "AAAB") is not None
# REPEAT inside REPEAT
r = get_code(r"(?:(?:xy)+)?B")
assert match(r, "xyB") is not None
r = get_code(r"(?:xy(?:xy)+?)+B")
assert match(r, "xyxyxyB") is not None
r = get_code(r"(?:xy(?:xy)+)+?B")
assert match(r, "xyxyxyB") is not None
r = get_code(r"(?:xy(?:xy)+?)+?B")
assert match(r, "xyxyxyB") is not None
def test_assert_group(self):
r = get_code(r"abc(?=(..)f)(.)")
res = match(r, "abcdefghi")
assert res is not None
assert res.span(2) == (P(3), P(4))
assert res.span(1) == (P(3), P(5))
def test_assert_not_group(self):
r = get_code(r"abc(?!(de)f)(.)")
res = match(r, "abcdeFghi")
assert res is not None
assert res.span(2) == (P(3), P(4))
# this I definitely classify as Horrendously Implementation Dependent.
# CPython answers (3, 5).
assert res.span(1) == (-1, -1)
def test_match_start(self):
r = get_code(r"^ab")
assert match(r, "abc")
assert not match(r, "xxxabc", start=3)
assert not match(r, "xx\nabc", start=3)
#
r = get_code(r"(?m)^ab")
assert match(r, "abc")
assert not match(r, "xxxabc", start=3)
assert match(r, "xx\nabc", start=3)
def test_match_end(self):
r = get_code("ab")
assert match(r, "abc")
assert match(r, "abc", end=333)
assert match(r, "abc", end=3)
assert match(r, "abc", end=2)
assert not match(r, "abc", end=1)
assert not match(r, "abc", end=0)
assert not match(r, "abc", end=-1)
def test_match_bug1(self):
r = get_code(r'(x??)?$')
assert match(r, "x")
def test_match_bug2(self):
r = get_code(r'(x??)??$')
assert match(r, "x")
def test_match_bug3(self):
if VERSION == "2.7.5":
py.test.skip("pattern fails to compile with exactly 2.7.5 "
"(works on 2.7.3 and on 2.7.trunk though)")
r = get_code(r'([ax]*?x*)?$')
assert match(r, "aaxaa")
def test_bigcharset(self):
for i in range(100):
chars = [unichr(random.randrange(0x100, 0xD000))
for n in range(random.randrange(1, 25))]
pattern = u'[%s]' % (u''.join(chars),)
r = get_code(pattern)
for c in chars:
assert match(r, c)
for i in range(200):
c = unichr(random.randrange(0x0, 0xD000))
res = match(r, c)
if c in chars:
assert res is not None
else:
assert res is None
def test_simple_match_1(self):
r = get_code(r"ab*bbbbbbbc")
print r
m = match(r, "abbbbbbbbbcdef")
assert m
assert m.match_end == P(11)
def test_empty_maxuntil(self):
r = get_code("\\{\\{((?:.*?)+)\\}\\}")
m = match(r, "{{a}}{{b}}")
assert m.group(1) == "a"
def test_fullmatch_1(self):
r = get_code(r"ab*c")
assert not fullmatch(r, "abbbcdef")
assert fullmatch(r, "abbbc")
def test_fullmatch_2(self):
r = get_code(r"a(b*?)")
match = fullmatch(r, "abbb")
assert match.group(1) == "bbb"
assert not fullmatch(r, "abbbc")
def test_fullmatch_3(self):
r = get_code(r"a((bp)*?)c")
match = fullmatch(r, "abpbpbpc")
assert match.group(1) == "bpbpbp"
def test_fullmatch_4(self):
r = get_code(r"a((bp)*)c")
match = fullmatch(r, "abpbpbpc")
assert match.group(1) == "bpbpbp"
def test_fullmatch_assertion(self):
r = get_code(r"(?=a).b")
assert fullmatch(r, "ab")
r = get_code(r"(?!a)..")
assert not fullmatch(r, "ab")
def test_range_ignore(self):
from rpython.rlib.unicodedata import unicodedb
rsre_char.set_unicode_db(unicodedb)
#
r = get_code(u"[\U00010428-\U0001044f]", re.I)
assert r.pattern.count(rsre_constants.OPCODE_RANGE) == 1
if rsre_constants.V37:
repl = rsre_constants.OPCODE37_RANGE_UNI_IGNORE
else:
repl = rsre_constants.OPCODE27_RANGE_IGNORE
r.pattern[r.pattern.index(rsre_constants.OPCODE_RANGE)] = repl
assert match(r, u"\U00010428")
|
