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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
2.6 KiB
135 lines
2.6 KiB
try:
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import re
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except ImportError:
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print("SKIP")
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raise SystemExit
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r = re.compile(".+")
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m = r.match("abc")
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print(m.group(0))
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try:
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m.group(1)
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except IndexError:
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print("IndexError")
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# conversion of re and match to string
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str(r)
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str(m)
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r = re.compile("(.+)1")
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m = r.match("xyz781")
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print(m.group(0))
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print(m.group(1))
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try:
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m.group(2)
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except IndexError:
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print("IndexError")
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r = re.compile("[a-cu-z]")
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m = r.match("a")
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print(m.group(0))
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m = r.match("z")
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print(m.group(0))
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m = r.match("d")
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print(m)
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m = r.match("A")
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print(m)
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print("===")
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r = re.compile("[^a-cu-z]")
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m = r.match("a")
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print(m)
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m = r.match("z")
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print(m)
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m = r.match("d")
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print(m.group(0))
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m = r.match("A")
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print(m.group(0))
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print("===")
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# '-' character within character class block
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print(re.match("[-a]+", "-a]d").group(0))
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print(re.match("[a-]+", "-a]d").group(0))
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print("===")
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r = re.compile("o+")
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m = r.search("foobar")
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print(m.group(0))
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try:
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m.group(1)
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except IndexError:
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print("IndexError")
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m = re.match(".*", "foo")
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print(m.group(0))
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m = re.search("w.r", "hello world")
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print(m.group(0))
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m = re.match("a+?", "ab")
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print(m.group(0))
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m = re.match("a*?", "ab")
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print(m.group(0))
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m = re.match("^ab$", "ab")
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print(m.group(0))
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m = re.match("a|b", "b")
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print(m.group(0))
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m = re.match("a|b|c", "c")
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print(m.group(0))
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# Case where anchors fail to match
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r = re.compile("^b|b$")
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m = r.search("abc")
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print(m)
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try:
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re.compile("*")
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except:
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print("Caught invalid regex")
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# bytes objects
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m = re.match(rb"a+?", b"ab")
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print(m.group(0))
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print("===")
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# escaping
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m = re.match(r"a\.c", "a.c")
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print(m.group(0) if m else "")
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m = re.match(r"a\.b", "abc")
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print(m is None)
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m = re.match(r"a\.b", "a\\bc")
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print(m is None)
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m = re.match(r"[a\-z]", "abc")
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print(m.group(0))
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m = re.match(r"[.\]]*", ".].]a")
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print(m.group(0))
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m = re.match(r"[.\]+]*", ".]+.]a")
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print(m.group(0))
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m = re.match(r"[a-f0-9x\-yz]*", "abxcd1-23")
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print(m.group(0))
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m = re.match(r"[a\\b]*", "a\\aa\\bb\\bbab")
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print(m.group(0))
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m = re.search(r"[a\-z]", "-")
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print(m.group(0))
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m = re.search(r"[a\-z]", "f")
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print(m is None)
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m = re.search(r"[a\]z]", "a")
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print(m.group(0))
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print(re.compile(r"[-a]").split("foo-bar"))
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print(re.compile(r"[a-]").split("foo-bar"))
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print(re.compile(r"[ax\-]").split("foo-bar"))
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print(re.compile(r"[a\-x]").split("foo-bar"))
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print(re.compile(r"[\-ax]").split("foo-bar"))
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print("===")
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# Module functions take str/bytes/re.
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for f in (re.match, re.search):
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print(f(".", "foo").group(0))
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print(f(b".", b"foo").group(0))
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print(f(re.compile("."), "foo").group(0))
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try:
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f(123, "a")
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except TypeError:
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print("TypeError")
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print("===")
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