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import pytest
import pcre2
from pcre2._cy import LibraryError
test_data_pattern_compile_success = [
(b"a+b+c*d*", 0, "SUCCESS"),
(b"(?<foo>a+b+)c*d*", 0, "SUCCESS"),
(b"(?<foo>a+b+))c*d*", 0, "COMPILE_ERROR"),
("å+∫+ç*∂*".encode(), 0, "SUCCESS"),
("a+b+c*d*", 0, "SUCCESS"),
("(?<foo>a+b+)c*d*", 0, "SUCCESS"),
("(?<foo>a+b+))c*d*", 0, "COMPILE_ERROR"),
("(?<<foo>a+b+)c*d*", 0, "COMPILE_ERROR"),
("(?<foo>a+b+)c*d*(?<foo>a+b+)", 0, "COMPILE_ERROR"),
("å+∫+ç*∂*", 0, "SUCCESS"),
("(?<ƒøø>a+b+)c*d*", 0, "SUCCESS"),
]
@pytest.mark.parametrize("pattern,flags,return_code", test_data_pattern_compile_success)
def test_pattern_compile_success(pattern, flags, return_code):
try:
p = pcre2.compile(pattern, flags=flags, jit=False)
rc = "SUCCESS"
assert not p.jit
except pcre2.PatternError:
rc = "COMPILE_ERROR"
except pcre2.LibraryError:
rc = "LIB_ERROR"
assert rc == return_code
@pytest.mark.parametrize("pattern,flags,return_code", test_data_pattern_compile_success)
def test_pattern_jit_compile_success(pattern, flags, return_code):
try:
p = pcre2.compile(pattern, flags=flags, jit=True)
rc = "SUCCESS"
assert p.jit
except pcre2.PatternError:
rc = "COMPILE_ERROR"
except pcre2.LibraryError:
rc = "LIB_ERROR"
assert rc == return_code
test_data_pattern_groupindex = [
(b"(?<foo>a+b+)c*d*", 0, {"foo": 1}),
("(?<foo>a+b+)c*d*", 0, {"foo": 1}),
("(?<ƒøø>a+b+)c*d*", 0, {"ƒøø": 1}),
("(?<foo>a+b+)c*d*(?<bar>a+b+)", 0, {"foo": 1, "bar": 2}),
("(?<foo>a+b+)c*(.+)d*(?<bar>a+b+)", 0, {"foo": 1, "bar": 3}),
]
@pytest.mark.parametrize("pattern,flags,groupindex", test_data_pattern_groupindex)
def test_pattern_groupindex(pattern, flags, groupindex):
p = pcre2.compile(pattern, flags=flags)
assert p.groupindex == groupindex
test_data_pattern_match_success = [
(b".*", b"abacbaccbacccb", 0, 0, "SUCCESS"),
(".*", "abacbaccbacccb", 0, 0, "SUCCESS"),
("ac{3,}b", "abacbaccbacccb", 0, 0, "SUCCESS"),
("a•{3,}b", "aba•ba••ba•••b", 0, 0, "SUCCESS"),
("ab", "abacbaccbacccb", 0, 2, "UNMATCHED"),
("((((((((((((((()))))))))))))))", "", 0, 0, "SUCCESS"),
]
@pytest.mark.parametrize("pattern,subject,flags,pos,return_code", test_data_pattern_match_success)
def test_pattern_match_success(pattern, subject, flags, pos, return_code):
p = pcre2.compile(pattern, flags=flags)
try:
m = p.search(subject, pos=pos)
rc = "SUCCESS" if m else "UNMATCHED"
except LibraryError as e:
rc = "LIB_ERROR"
assert rc == return_code
test_data_pattern_scan_length = [
(b".+", b"abacbaccbacccb", 0, 1),
(b".*", b"abacbaccbacccb", 0, 2),
(".+", "abacbaccbacccb", 0, 1),
(".*", "abacbaccbacccb", 0, 2),
("[abc]*", "dabacbaccbacccb", 0, 3),
("ac{2,}b", "abacbaccbacccb", 0, 2),
("a•{2,}b", "aba•ba••ba•••b", 0, 2),
("a•*b", "aba•ba••ba•••b", 0, 4),
("ab", "abacbaccbacccb", 2, 0),
]
@pytest.mark.parametrize("pattern,subject,pos,iter_length", test_data_pattern_scan_length)
def test_pattern_scan_length(pattern, subject, pos, iter_length):
p = pcre2.compile(pattern)
s = p.finditer(subject, pos=pos)
assert len(list(iter(s))) == iter_length
test_pattern_substitute = [
(b"[abc]*", b"", b"dabacbaccbacccb", 1, b"dabacbaccbacccb"),
("[abc]*", "", "dabacbaccbacccb", 1, "dabacbaccbacccb"),
("[abc]*", "", "dabacbaccbacccb", 0, "d"),
("a(•{2,})b", "a•b", "aba•ba••ba•••b", 0, "aba•ba•ba•b"),
("a(•{2,})b", "a$1b", "aba•ba••ba•••b", 0, "aba•ba••ba•••b"),
("a(•{2,})b", lambda m: m[0] + m[0], "aba•ba••ba•••b", 0, "aba•ba••ba••ba•••ba•••b"),
("a(•{2,})b", lambda m: m[1] + m[1], "aba•ba••ba•••b", 0, "aba•b••••••••••"),
]
@pytest.mark.parametrize("pattern,replacement,subject,count,result", test_pattern_substitute)
def test_pattern_substitute(pattern, replacement, subject, count, result):
p = pcre2.compile(pattern)
assert p.sub(replacement, subject, count) == result
def test_pattern_findall():
p = pcre2.compile(r"(\w+)=(\d+)")
assert p.findall("set width=20 and height=10") == [("width", "20"), ("height", "10")]
s = bytes(range(128)).decode()
p2 = pcre2.compile(r"[0-9--1]")
assert p2.findall(s) == list("-./0123456789")
p3 = pcre2.compile(r"[%--1]")
assert p3.findall(s) == list("%&'()*+,-1")
p4 = pcre2.compile(r"[%--]")
assert p4.findall(s) == list("%&'()*+,-")
p5 = pcre2.compile(r"[0-9&&1]")
assert p5.findall(s) == list("&0123456789")
p6 = pcre2.compile(r"[\d&&1]")
assert p6.findall(s) == list("&0123456789")
p7 = pcre2.compile(r"[0-9||a]")
assert p7.findall(s) == list("0123456789a|")
p8 = pcre2.compile(r"[\d||a]")
assert p8.findall(s) == list("0123456789a|")
p9 = pcre2.compile(r"[0-9~~1]")
assert p9.findall(s) == list("0123456789~")
p10 = pcre2.compile(r"[\d~~1]")
assert p10.findall(s) == list("0123456789~")
p11 = pcre2.compile(r"[[0-9]|]")
assert p11.findall(s) == list("0123456789[]")
for reps in "*", "+", "?", "{1}":
for mod in "", "?":
pattern = "." + reps + mod + "yz"
assert pcre2.compile(pattern, pcre2.S).findall("xyz") == ["xyz"], pattern
pattern = pattern.encode()
assert pcre2.compile(pattern, pcre2.S).findall(b"xyz") == [b"xyz"], pattern
def test_pattern_jit_findall():
assert pcre2.findall(r"(\w+)=(\d+)", "set width=20 and height=10") == [
("width", "20"),
("height", "10"),
]
assert pcre2.findall(":+", "abc") == []
assert pcre2.findall(":+", "a:b::c:::d") == [":", "::", ":::"]
assert pcre2.findall("(:+)", "a:b::c:::d") == [":", "::", ":::"]
for x in ("\xe0", "\u0430", "\U0001d49c"):
xx = x * 2
xxx = x * 3
string = "a%sb%sc%sd" % (x, xx, xxx)
assert pcre2.findall("%s+" % x, string) == [x, xx, xxx]
assert pcre2.findall("(%s+)" % x, string) == [x, xx, xxx]
assert len(pcre2.findall(r"\b", "a")) == 2
assert len(pcre2.findall(r"\B", "a")) == 0
assert len(pcre2.findall(r"\b", " ")) == 0
assert len(pcre2.findall(r"\b", " ")) == 0
assert len(pcre2.findall(r"\B", " ")) == 2
s = bytes(range(128)).decode()
assert pcre2.findall(r"[--1]", s) == list("-./01")
assert pcre2.findall(r"[&&1]", s) == list("&1")
assert pcre2.findall(r"[||1]", s) == list("1|")
assert pcre2.findall(r"[~~1]", s) == list("1~")
assert pcre2.findall(r"(?i)(a)\1", "aa \u0100") == ["a"]
assert pcre2.findall(r"a++", "aab") == ["aa"]
assert pcre2.findall(r"a*+", "aab") == ["aa", "", ""]
assert pcre2.findall(r"a?+", "aab") == ["a", "a", "", ""]
assert pcre2.findall(r"a{1,3}+", "aab") == ["aa"]
assert pcre2.findall(r"(?:ab)++", "ababc") == ["abab"]
assert pcre2.findall(r"(?:ab)*+", "ababc") == ["abab", "", ""]
assert pcre2.findall(r"(?:ab)?+", "ababc") == ["ab", "ab", "", ""]
assert pcre2.findall(r"(?:ab){1,3}+", "ababc") == ["abab"]
assert pcre2.findall(r"(?>a+)", "aab") == ["aa"]
assert pcre2.findall(r"(?>a*)", "aab") == ["aa", "", ""]
assert pcre2.findall(r"(?>a?)", "aab") == ["a", "a", "", ""]
assert pcre2.findall(r"(?>a{1,3})", "aab") == ["aa"]
assert pcre2.findall(r"(?>(?:ab)+)", "ababc") == ["abab"]
assert pcre2.findall(r"(?>(?:ab)*)", "ababc") == ["abab", "", ""]
assert pcre2.findall(r"(?>(?:ab)?)", "ababc") == ["ab", "ab", "", ""]
assert pcre2.findall(r"(?>(?:ab){1,3})", "ababc") == ["abab"]
import re
b = "y\u2620y\u2620y".encode("utf-8")
assert len(pcre2.findall(re.escape("\u2620".encode("utf-8")), b)) == 2
def test_pattern_split():
pattern = "[\u002e\u3002\uff0e\uff61]"
assert pcre2.compile(pattern).split("a.b.c") == ["a", "b", "c"]
def test_pattern_jit_split():
assert pcre2.split(":", ":a:b::c") == ["", "a", "b", "", "c"]
assert pcre2.split(":+", ":a:b::c") == ["", "a", "b", "c"]
assert pcre2.split("(:+)", ":a:b::c") == ["", ":", "a", ":", "b", "::", "c"]
assert pcre2.split(b":", b":a:b::c") == [b"", b"a", b"b", b"", b"c"]
assert pcre2.split(b":+", b":a:b::c") == [b"", b"a", b"b", b"c"]
assert pcre2.split(b"(:+)", b":a:b::c") == [b"", b":", b"a", b":", b"b", b"::", b"c"]
for a, b, c in ("\xe0\xdf\xe7", "\u0430\u0431\u0432", "\U0001d49c\U0001d49e\U0001d4b5"):
string = ":%s:%s::%s" % (a, b, c)
assert pcre2.split(":", string) == ["", a, b, "", c]
assert pcre2.split(":+", string) == ["", a, b, c]
assert pcre2.split("(:+)", string) == ["", ":", a, ":", b, "::", c]
assert pcre2.split("(?::+)", ":a:b::c") == ["", "a", "b", "c"]
assert pcre2.split("([b:]+)", ":a:b::c") == ["", ":", "a", ":b::", "c"]
assert pcre2.split("(?:b)|(?::+)", ":a:b::c") == ["", "a", "", "", "c"]
assert pcre2.split(":", ":a:b::c", 2) == ["", "a", "b::c"]
assert pcre2.split(":", ":a:b::c", maxsplit=2) == ["", "a", "b::c"]
assert pcre2.split(":", "a:b:c:d", maxsplit=2) == ["a", "b", "c:d"]
assert pcre2.split("(:)", ":a:b::c", maxsplit=2) == ["", ":", "a", ":", "b::c"]
assert pcre2.split("(:+)", ":a:b::c", maxsplit=2) == ["", ":", "a", ":", "b::c"]
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