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108 lines
3.4 KiB
Rust
108 lines
3.4 KiB
Rust
// These are tests specifically crafted for regexes that can match arbitrary
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// bytes.
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// A silly wrapper to make it possible to write and match raw bytes.
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struct R<'a>(&'a [u8]);
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impl<'a> R<'a> {
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fn as_bytes(&self) -> &'a [u8] {
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self.0
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}
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}
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mat!(word_boundary, r"(?-u) \b", " δ", None);
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#[cfg(feature = "unicode-perl")]
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mat!(word_boundary_unicode, r" \b", " δ", Some((0, 1)));
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mat!(word_not_boundary, r"(?-u) \B", " δ", Some((0, 1)));
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#[cfg(feature = "unicode-perl")]
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mat!(word_not_boundary_unicode, r" \B", " δ", None);
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mat!(perl_w_ascii, r"(?-u)\w+", "aδ", Some((0, 1)));
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#[cfg(feature = "unicode-perl")]
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mat!(perl_w_unicode, r"\w+", "aδ", Some((0, 3)));
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mat!(perl_d_ascii, r"(?-u)\d+", "1२३9", Some((0, 1)));
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#[cfg(feature = "unicode-perl")]
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mat!(perl_d_unicode, r"\d+", "1२३9", Some((0, 8)));
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mat!(perl_s_ascii, r"(?-u)\s+", " \u{1680}", Some((0, 1)));
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#[cfg(feature = "unicode-perl")]
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mat!(perl_s_unicode, r"\s+", " \u{1680}", Some((0, 4)));
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// The first `(.+)` matches two Unicode codepoints, but can't match the 5th
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// byte, which isn't valid UTF-8. The second (byte based) `(.+)` takes over and
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// matches.
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mat!(
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mixed1,
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r"(.+)(?-u)(.+)",
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R(b"\xCE\x93\xCE\x94\xFF"),
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Some((0, 5)),
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Some((0, 4)),
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Some((4, 5))
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);
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mat!(case_ascii_one, r"(?i-u)a", "A", Some((0, 1)));
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mat!(case_ascii_class, r"(?i-u)[a-z]+", "AaAaA", Some((0, 5)));
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#[cfg(feature = "unicode-case")]
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mat!(case_unicode, r"(?i)[a-z]+", "aA\u{212A}aA", Some((0, 7)));
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mat!(case_not_unicode, r"(?i-u)[a-z]+", "aA\u{212A}aA", Some((0, 2)));
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mat!(negate_unicode, r"[^a]", "δ", Some((0, 2)));
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mat!(negate_not_unicode, r"(?-u)[^a]", "δ", Some((0, 1)));
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// This doesn't match in a normal Unicode regex because the implicit preceding
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// `.*?` is Unicode aware.
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mat!(dotstar_prefix_not_unicode1, r"(?-u)a", R(b"\xFFa"), Some((1, 2)));
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mat!(dotstar_prefix_not_unicode2, r"a", R(b"\xFFa"), Some((1, 2)));
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// Have fun with null bytes.
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mat!(
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null_bytes,
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r"(?-u)(?P<cstr>[^\x00]+)\x00",
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R(b"foo\x00"),
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Some((0, 4)),
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Some((0, 3))
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);
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// Test that lookahead operators work properly in the face of invalid UTF-8.
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// See: https://github.com/rust-lang/regex/issues/277
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matiter!(
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invalidutf8_anchor1,
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r"(?-u)\xcc?^",
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R(b"\x8d#;\x1a\xa4s3\x05foobarX\\\x0f0t\xe4\x9b\xa4"),
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(0, 0)
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);
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matiter!(
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invalidutf8_anchor2,
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r"(?-u)^\xf7|4\xff\d\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a##########[] d\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a\x8a##########\[] #####\x80\S7|$",
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R(b"\x8d#;\x1a\xa4s3\x05foobarX\\\x0f0t\xe4\x9b\xa4"),
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(22, 22)
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);
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matiter!(
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invalidutf8_anchor3,
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r"(?-u)^|ddp\xff\xffdddddlQd@\x80",
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R(b"\x8d#;\x1a\xa4s3\x05foobarX\\\x0f0t\xe4\x9b\xa4"),
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(0, 0)
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);
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// See https://github.com/rust-lang/regex/issues/303
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#[test]
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fn negated_full_byte_range() {
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assert!(::regex::bytes::Regex::new(r#"(?-u)[^\x00-\xff]"#).is_err());
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}
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matiter!(word_boundary_ascii1, r"(?-u:\B)x(?-u:\B)", "áxβ");
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matiter!(
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word_boundary_ascii2,
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r"(?-u:\B)",
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"0\u{7EF5E}",
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(2, 2),
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(3, 3),
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(4, 4),
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(5, 5)
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);
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// See: https://github.com/rust-lang/regex/issues/264
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mat!(ascii_boundary_no_capture, r"(?-u)\B", "\u{28f3e}", Some((0, 0)));
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mat!(ascii_boundary_capture, r"(?-u)(\B)", "\u{28f3e}", Some((0, 0)));
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// See: https://github.com/rust-lang/regex/issues/271
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mat!(end_not_wb, r"$(?-u:\B)", "\u{5c124}\u{b576c}", Some((8, 8)));
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