perl - Perl 多语言排序：希望空格在字母上方排序

Question

我有一个以下 Perl 脚本，它对单词列表进行排序，使用 utf-8 编码：

use HTML::Entities;
use Unicode::Collate::Locale;
use utf8;

my @array = (
     "Another", 
     "An Other", 
     "Anóther", 
     "An Óther", 
     "Anòther", 
     "An Òther", 
     "Anôther", 
     "An Ôther", 
     "Anöther", 
     "An Öther", 
     "Anõther", 
     "An Õther"
     );

my $lang = "da";

printf ("Lang code is: %s\n", $lang);

my $coll = Unicode::Collate::Locale->new(locale => "$lang");

my @result = $coll->sort(@array);


foreach my $item (@result){

print $item, "\n";
}

这是它的输出：

Lang code is: da
An Other
Another
An Óther
Anóther
An Òther
Anòther
An Ôther
Anôther
An Õther
Anõther
An Öther
Anöther

但是，我希望它输出：

An Other
An Óther
An Òther
An Ôther
An Õther
An Öther
Another
Anóther
Anòther
Anôther
Anõther
Anöther

理由是我希望空格字符排在其他字母之前。有没有办法让我的 Collat​​or 对象帮助我做到这一点？

Answer 1

尝试将变量权重设置为'non-ignorable'：

my $coll = Unicode::Collate::Locale->new(
    locale   => $lang,
    variable => 'non-ignorable',
);

有关详细信息，请参阅Unicode 排序算法 (UCA) 规范中的变量加权部分。