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Contents
// A regression test for checking that minimization correctly translates
// whether a state is a match state or not. Previously, it was possible for
// minimization to mark a non-matching state as matching.
#[test]
#[cfg(not(miri))]
fn minimize_sets_correct_match_states() {
use regex_automata::{
dfa::{dense::DFA, Automaton, StartKind},
Anchored, Input,
};
let pattern =
// This is a subset of the grapheme matching regex. I couldn't seem
// to get a repro any smaller than this unfortunately.
r"(?x)
(?:
\p{gcb=Prepend}*
(?:
(?:
(?:
\p{gcb=L}*
(?:\p{gcb=V}+|\p{gcb=LV}\p{gcb=V}*|\p{gcb=LVT})
\p{gcb=T}*
)
|
\p{gcb=L}+
|
\p{gcb=T}+
)
|
\p{Extended_Pictographic}
(?:\p{gcb=Extend}*\p{gcb=ZWJ}\p{Extended_Pictographic})*
|
[^\p{gcb=Control}\p{gcb=CR}\p{gcb=LF}]
)
[\p{gcb=Extend}\p{gcb=ZWJ}\p{gcb=SpacingMark}]*
)
";
let dfa = DFA::builder()
.configure(
DFA::config().start_kind(StartKind::Anchored).minimize(true),
)
.build(pattern)
.unwrap();
let input = Input::new(b"\xE2").anchored(Anchored::Yes);
assert_eq!(Ok(None), dfa.try_search_fwd(&input));
}
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