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Keep does nothing if an empty regex is entered (rather than crashing)
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@ -542,6 +542,8 @@ void keep(Context& context, int)
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{
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constexpr const char* prompt = matching ? "keep matching:" : "keep not matching:";
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regex_prompt(context, prompt, [](const Regex& ex, Context& context) {
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if (ex.empty())
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return;
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Editor& editor = context.editor();
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const Buffer& buffer = context.buffer();
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SelectionList keep;
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