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std.regex: drop redundant bmatch run from the test suite #11046

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std.regex: drop redundant bmatch run from the test suite #11046

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std.regex: drop redundant bmatch run from the test suite
kubo39 Jun 28, 2026
b2562f5
std.regex: add internal helper to run tests through the backtracking …
kubo39 Jun 28, 2026
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13 changes: 11 additions & 2 deletions std/regex/internal/tests.d
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Original file line number Diff line number Diff line change
Expand Up @@ -464,8 +464,17 @@ debug(std_regex_test) import std.stdio;
debug(std_regex_test) writeln("!!! FReD C-T test done !!!");
}

// Force the backtracking engine to exercise it on every pattern.
auto bmatchForced(R, RegEx)(R input, RegEx re)
{
import std.regex.internal.ir : RuntimeFactory, BasicElementOf;
import std.regex.internal.backtracking : BacktrackingMatcher;
alias Char = BasicElementOf!R;
return match(input, re.withFactory(new RuntimeFactory!(BacktrackingMatcher, Char)));
}

ct_tests();
run_tests!bmatch(); //backtracker
run_tests!match(); //thompson VM
run_tests!match(); // engine auto-selected per pattern
run_tests!bmatchForced(); // force the backtracking engine on every pattern
}

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