linux-kernel - Re: [PATCH 08/19] scripts: Make cleanfile/cleanpatch warn about long lines

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Message-ID: <Pine.LNX.4.61.0706041805560.20829@yvahk01.tjqt.qr>
Date:	Mon, 4 Jun 2007 18:07:10 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Sam Ravnborg <sam@...nborg.org>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	kbuild-devel@...ts.sourceforge.net
Subject: Re: [PATCH 08/19] scripts: Make cleanfile/cleanpatch warn about long
 lines


On Jun 3 2007 22:47, Sam Ravnborg wrote:
>
>Make the "cleanfile" and "cleanpatch" script warn about long lines,
>by default lines whose visual width exceeds 79 characters.

Nice, nice. But, am I asking too much if tabs and kernel codestyle
could be used? (/me hides..., but see scripts/checkpatch.pl :-)

>+# Compute the visual width of a string
>+sub strwidth($) {
>+    no bytes;			# Tab alignment depends on characters
>+
>+    my($li) = @_;
>+    my($c, $i);
>+    my $pos = 0;
>+    my $mlen = 0;
>+
>+    for ($i = 0; $i < length($li); $i++) {
>+	$c = substr($li,$i,1);
>+	if ($c eq "\t") {
>+	    $pos = ($pos+8) & ~7;
>+	} elsif ($c eq "\n") {
>+	    $mlen = $pos if ($pos > $mlen);
>+	    $pos = 0;
>+	} else {
>+	    $pos++;
>+	}
>+    }
>+
>+    $mlen = $pos if ($pos > $mlen);
>+    return $mlen;
>+}
>+


	Jan
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