From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fhigh-b2-smtp.messagingengine.com (fhigh-b2-smtp.messagingengine.com [202.12.124.153]) (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 860E017E4 for ; Tue, 11 Nov 2025 00:04:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.12.124.153 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762819498; cv=none; b=IbA39o3b0J2puJ2OsFv24NtCux4Srf3qEf1hB2s4uuoHq5HiqoqHYiB7GrRAOIjXf7b26dn5oBq+hFLwNfj5OQ6CzquLUZOK5VBK/tO/8ftJComT2KfEL6wSm8lABVT0Jh3pFmCN6GiHOjnytXOwmN55ktnbDI1up2rwMLxG/1Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762819498; c=relaxed/simple; bh=sfO/mOiZYE3t8ilfAA7r7CVOS3qjf2e/P6c7fl1TnSw=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=B9ZqifGhz5bmk8v07X9V0eMGwyCBjSN0MihhIYKl5XuFGSBoQ9gzq7H8veSaKWYqtRV90NHfZ1Kd842Jtx/Nk4+9KddhVAyKfpyARL4vZ9rtBNdsf9lKvAe8XWWQjleoxyELhzwHpwiT7QEoGD8hXMb+pU0PVgPyXbFOtkPhbSA= 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 (2048-bit key) header.d=pobox.com header.i=@pobox.com header.b=aebkw6eW; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b=vMcz4aKh; arc=none smtp.client-ip=202.12.124.153 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 (2048-bit key) header.d=pobox.com header.i=@pobox.com header.b="aebkw6eW"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="vMcz4aKh" Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfhigh.stl.internal (Postfix) with ESMTP id B0C657A00B2; Mon, 10 Nov 2025 19:04:55 -0500 (EST) Received: from phl-frontend-02 ([10.202.2.161]) by phl-compute-04.internal (MEProxy); Mon, 10 Nov 2025 19:04:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pobox.com; h=cc :content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=fm2; t=1762819495; x= 1762905895; bh=0wJJT4LfrvTq/JdVxlrWvqVIQ8VrXlICf2fmFb6Ynb8=; b=a ebkw6eWnzBNcs8Mzr1genQqgh9ac5Sc5iWU9Whx/FgV1kRtNQgVh+l0UFnmiP43e dwvWurv6CwID+zJMszapAWsOnfF91HGvLTfBHw5iBSVz0kvRNovCAmBeF3JfVUwb BxzmC2py+XxFsQTff47KIC7gw2PWU9LSEjwGYxsxPw6lQ2NWycZymWFrI2NhK35f 5odmMr+hz5z3bll6zwCQCDZqffi8AbgjiAY+oOoX9xm1vPOgFe/N8dtcz2xvwVH0 1PXZ8glS/j0jDiuBZVmCrFp4TbB99uCNDTPXL0Xdv4XttNqzZ1HxdNUZXFtxo1PN 7lkCfyygOr1zQu21JcF4w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:date:feedback-id:feedback-id:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:subject :subject:to:to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; t=1762819495; x=1762905895; bh=0wJJT4LfrvTq/JdVxlrWvqVIQ8Vr XlICf2fmFb6Ynb8=; b=vMcz4aKh/E7sM6yRQjictAoUvQYGCU3IYm07iHSrn3H7 qJEE+7ChuKeJGgFSCPldX2t5huy/hr6NOgg/i1X2rzusf/6E35pvy8LIXWjNF+QH Y95CdwWyZdh8EeBCmzeFMsBqS/u52a9IoML4roVvkxsVIwN8d3G710rf7eM11y+f pVaa9P6ZsK0cxgQvIuGSzEoJF9wluKbfQWrpXi2mW8j0dIzr2Gd2O0iQtKF5GrtH Y5AtrBeE7O0l89RbdY5DcMrFGQsh2Go0CMdcRlxIYZXoe2KBCk1af1rBbmGr9xJL k2rjK75T8EWFNfze+bw3aBNIkq/9T9gTOuf5lNSo7A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdeggdduleeljeduucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekredtre dttdenucfhrhhomheplfhunhhiohcuvecujfgrmhgrnhhouceoghhithhsthgvrhesphho sghogidrtghomheqnecuggftrfgrthhtvghrnhepleevieefieeuffeugefhveeugefgfe evvdefleevuedvfedvudefkeehtdeftdegnecuvehluhhsthgvrhfuihiivgeptdenucfr rghrrghmpehmrghilhhfrhhomhepghhithhsthgvrhesphhosghogidrtghomhdpnhgspg hrtghpthhtohepvddpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtohepghhithesvhhg vghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehgihhtshhtvghrsehpohgsohigrd gtohhm X-ME-Proxy: Feedback-ID: if26b431b:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 10 Nov 2025 19:04:55 -0500 (EST) From: Junio C Hamano To: git@vger.kernel.org Subject: [PATCH v3 01/12] whitespace: correct bit assignment comments Date: Mon, 10 Nov 2025 16:04:40 -0800 Message-ID: <20251111000451.2243195-2-gitster@pobox.com> X-Mailer: git-send-email 2.52.0-rc1-455-g30608eb744 In-Reply-To: <20251111000451.2243195-1-gitster@pobox.com> References: <20251105213052.1499224-1-gitster@pobox.com> <20251111000451.2243195-1-gitster@pobox.com> Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit A comment in diff.c claimed that bits up to 12th (counting from 0th) are whitespace rules, and 13th thru 15th are for new/old/context, but it turns out it was miscounting. Correct them, and clarify where the whitespace rule bits come from in the comment. Extend bit assignment comments to cover bits used for color-moved, which weren't described. Also update the way these bit constants are defined to use (1 << N) notation, instead of octal constants, as it tends to make it easier to notice a breakage like this. Sprinkle a few blank lines between logically distinct groups of CPP macro definitions to make them easier to read. Signed-off-by: Junio C Hamano --- diff.c | 7 +++++-- diff.h | 6 +++--- ws.h | 25 ++++++++++++++----------- 3 files changed, 22 insertions(+), 16 deletions(-) diff --git a/diff.c b/diff.c index a74e701806..74261b332a 100644 --- a/diff.c +++ b/diff.c @@ -801,16 +801,19 @@ enum diff_symbol { DIFF_SYMBOL_CONTEXT_MARKER, DIFF_SYMBOL_SEPARATOR }; + /* * Flags for content lines: - * 0..12 are whitespace rules - * 13-15 are WSEH_NEW | WSEH_OLD | WSEH_CONTEXT + * 0..11 are whitespace rules (see ws.h) + * 12..14 are WSEH_NEW | WSEH_CONTEXT | WSEH_OLD * 16 is marking if the line is blank at EOF + * 17..19 are used for color-moved. */ #define DIFF_SYMBOL_CONTENT_BLANK_LINE_EOF (1<<16) #define DIFF_SYMBOL_MOVED_LINE (1<<17) #define DIFF_SYMBOL_MOVED_LINE_ALT (1<<18) #define DIFF_SYMBOL_MOVED_LINE_UNINTERESTING (1<<19) + #define DIFF_SYMBOL_CONTENT_WS_MASK (WSEH_NEW | WSEH_OLD | WSEH_CONTEXT | WS_RULE_MASK) /* diff --git a/diff.h b/diff.h index 2fa256c3ef..cbd355cf50 100644 --- a/diff.h +++ b/diff.h @@ -331,9 +331,9 @@ struct diff_options { int ita_invisible_in_index; /* white-space error highlighting */ -#define WSEH_NEW (1<<12) -#define WSEH_CONTEXT (1<<13) -#define WSEH_OLD (1<<14) +#define WSEH_NEW (1<<12) +#define WSEH_CONTEXT (1<<13) +#define WSEH_OLD (1<<14) unsigned ws_error_highlight; const char *prefix; int prefix_length; diff --git a/ws.h b/ws.h index 5ba676c559..23708efb73 100644 --- a/ws.h +++ b/ws.h @@ -7,19 +7,22 @@ struct strbuf; /* * whitespace rules. * used by both diff and apply - * last two digits are tab width + * last two octal-digits are tab width (we support only up to 63). */ -#define WS_BLANK_AT_EOL 0100 -#define WS_SPACE_BEFORE_TAB 0200 -#define WS_INDENT_WITH_NON_TAB 0400 -#define WS_CR_AT_EOL 01000 -#define WS_BLANK_AT_EOF 02000 -#define WS_TAB_IN_INDENT 04000 -#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) +#define WS_BLANK_AT_EOL (1<<6) +#define WS_SPACE_BEFORE_TAB (1<<7) +#define WS_INDENT_WITH_NON_TAB (1<<8) +#define WS_CR_AT_EOL (1<<9) +#define WS_BLANK_AT_EOF (1<<10) +#define WS_TAB_IN_INDENT (1<<11) + +#define WS_TRAILING_SPACE (WS_BLANK_AT_EOL|WS_BLANK_AT_EOF) #define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB|8) -#define WS_TAB_WIDTH_MASK 077 -/* All WS_* -- when extended, adapt diff.c emit_symbol */ -#define WS_RULE_MASK 07777 +#define WS_TAB_WIDTH_MASK ((1<<6)-1) + +/* All WS_* -- when extended, adapt constants defined after diff.c:diff_symbol */ +#define WS_RULE_MASK ((1<<12)-1) + extern unsigned whitespace_rule_cfg; unsigned whitespace_rule(struct index_state *, const char *); unsigned parse_whitespace_rule(const char *); -- 2.52.0-rc1-455-g30608eb744