linux-kernel - Re: [PATCH 10/11] vt: update ucs_width.c following latest gen_ucs

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Message-ID: <d676b9f3-e2b4-4b7c-ac37-e706b69af746@kernel.org>
Date: Mon, 14 Apr 2025 09:17:07 +0200
From: Jiri Slaby <jirislaby@...nel.org>
To: Nicolas Pitre <nico@...xnic.net>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Nicolas Pitre <npitre@...libre.com>, Dave Mielke <Dave@...lke.cc>,
 linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/11] vt: update ucs_width.c following latest
 gen_ucs_width.py

On 10. 04. 25, 3:14, Nicolas Pitre wrote:
> From: Nicolas Pitre <npitre@...libre.com>
> 
> Split table ranges into BMP (16-bit) and non-BMP (above 16-bit).
> This reduces the corresponding text size by 20-25%.
...
> @@ -483,7 +517,9 @@ static bool is_in_interval(uint32_t cp, const struct interval *intervals, size_t
>    */
>   bool ucs_is_zero_width(uint32_t cp)
>   {
> -	return is_in_interval(cp, zero_width_ranges, ARRAY_SIZE(zero_width_ranges));
> +	return (cp <= 0xFFFF)

This calls for some is_bmp() helper.

And then the classic way:
if (is_bmp())
   return is_in_interval16();

return is_in_interval32();

thanks,
-- 
js
suse labs