From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pb-smtp2.pobox.com (pb-smtp2.pobox.com [64.147.108.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7815544376 for ; Thu, 28 Mar 2024 19:33:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=64.147.108.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711654401; cv=none; b=kD276J60Hhl6iRevg2tvlKSg+kRONK2zbv0BBkgjgpTeOBBrgS5bSATlRBzceTVh7qKyv9VFl7sR6tml7hEu0MhFPWNdpL+gRSKdqSjAHAyEyxDs4XsRiCxX1HSEfYlrfJBiZYib6mT4NIhsYo8x/9dJdnVT5WtreWO6nYKNO7A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711654401; c=relaxed/simple; bh=j735oIc3vii5VjKndbOc1pIkf5TKjnKYdlXVWF8hjZM=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=UWdVR5iwJ8O2+ot1TkdWCzXUimQZe28EkXiYEfrLW3mpowHrWwCLCDm7s2zwZFr85lX4klBdxs6ODUlAWaYeQuk2e8XOP+m+O4il3vvHgRnK6YsC2nf09bR0R+5CwEXOlH1rT5V5WdgFCTLmLQsLn7+rNnsDf1oKMCVdfVlWtEA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=pobox.com; spf=pass smtp.mailfrom=pobox.com; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b=lc1XXXjH; arc=none smtp.client-ip=64.147.108.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=pobox.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pobox.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=pobox.com header.i=@pobox.com header.b="lc1XXXjH" Received: from pb-smtp2.pobox.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 319EB1DD671; Thu, 28 Mar 2024 15:33:17 -0400 (EDT) (envelope-from junio@pobox.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=pobox.com; h=from:to:cc :subject:in-reply-to:references:date:message-id:mime-version :content-type; s=sasl; bh=j735oIc3vii5VjKndbOc1pIkf5TKjnKYdlXVWF 8hjZM=; b=lc1XXXjHcZo3oo+s2qwiuy8jXADhYpObE9ImT4CgTd77yiFue8GiM1 cjwAZB40yqrkyS6OtE7zrmLTRECB15CMR8fpqgqt7CzJ6hno1gZAKpJaPEswe+8Z wighhYVWnc9HTnsyUCs8b3HkpqEg51IQm6Y9rsysmE7Qse9HMo2Ik= Received: from pb-smtp2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 28ED61DD670; Thu, 28 Mar 2024 15:33:17 -0400 (EDT) (envelope-from junio@pobox.com) Received: from pobox.com (unknown [34.125.139.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp2.pobox.com (Postfix) with ESMTPSA id 865D51DD66F; Thu, 28 Mar 2024 15:33:16 -0400 (EDT) (envelope-from junio@pobox.com) From: Junio C Hamano To: "Steven Jeuris via GitGitGadget" Cc: git@vger.kernel.org, =?utf-8?B?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason , Jeff King , Linus Arver , Johannes Sixt , Steven Jeuris , Steven Jeuris Subject: Re: [PATCH v4] userdiff: better method/property matching for C# In-Reply-To: (Steven Jeuris via GitGitGadget's message of "Thu, 28 Mar 2024 19:14:16 +0000") References: Date: Thu, 28 Mar 2024 12:33:15 -0700 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-Pobox-Relay-ID: 065D3E28-ED3A-11EE-BC3C-25B3960A682E-77302942!pb-smtp2.pobox.com "Steven Jeuris via GitGitGadget" writes: > As before, I ran into many regex limitations (no possessive quantifiers, > no lookahead). It also seems different regex evaluators are used on > different test runs. Which one does git diff use? Maybe it is about time > to update this? E.g., if speed is a concern, possessive quantifiers can > speed up search. When you make regcomp(3) and regexec(3) calls, you'll be using the system library that supplies them. IOW, we use whatever is on the system.