view src/libvterm/find-wide-chars.pl @ 33920:28e1e956f42c v9.0.2159

patch 9.0.2159: screenpos() may crash with neg. column Commit: https://github.com/vim/vim/commit/ec54af4e26952d954a4cc009f62c80ea01445d30 Author: zeertzjq <zeertzjq@outlook.com> Date: Tue Dec 12 16:43:44 2023 +0100 patch 9.0.2159: screenpos() may crash with neg. column Problem: screenpos() may crash with neg. column Solution: validate and correct column closes: #13669 Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Tue, 12 Dec 2023 17:00:08 +0100
parents 55a373a243c0
children
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#!/usr/bin/perl

use strict;
use warnings;

STDOUT->autoflush(1);

sub iswide
{
   my ( $cp ) = @_;
   return chr($cp) =~ m/\p{East_Asian_Width=Wide}|\p{East_Asian_Width=Fullwidth}/;
}

my ( $start, $end );
foreach my $cp ( 0 .. 0x1FFFF ) {
   iswide($cp) or next;

   if( defined $end and $end == $cp-1 ) {
      # extend the range
      $end = $cp;
      next;
   }

   # start a new range
   printf "  { %#04x, %#04x },\n", $start, $end if defined $start;

   $start = $end = $cp;
}

printf "  { %#04x, %#04x },\n", $start, $end if defined $start;