对Perl中的多语言整理感到困惑

Question

就在我认为我理解Perl中的多语种整理时......

我得到了$和％的相对排序看起来不同的结果 当我使用Unicode排序规则时，与使用普通旧的＆＃34; cmp＆＃34;相比。我不认为我的 Unicode结果是正确的。

以下脚本输出：

Vanilla collation: alpha CMP beta for  is -1      # I get it: "alpha" comes before "beta"
Unicode::Collate collation: alpha CMP beta is -1  # I get it: "alpha" comes before "beta"
Vanilla collation: $ CMP % for  is -1             # I get it $ comes before %
Unicode::Collate collation: $ CMP % is 1          # So why is this result different?

这就是我的问题：为什么Unicode整理会认为％来自$？

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

require 'Unicode/Collate/Locale/fr.pl';


my $COLL = Unicode::Collate::Locale->new(
    locale => "fr",
                     );

{
my $a_text = "alpha";
my $b_text = "beta";


my $result = $a_text cmp $b_text;    # returns 1, 0, or -1.
printf qq(Vanilla collation: %s CMP %s for $lang is %s\n), $a_text, $b_text, $result;

my $result1 = $COLL->cmp( $a_text, $b_text );    # returns 1, 0, or -1.
printf qq(Unicode::Collate collation: %s CMP %s is %s\n), $a_text, $b_text, $result1;
}

{
my $a_text = "\$";
my $b_text = "%";


my $result = $a_text cmp $b_text;    # returns 1, 0, or -1.
printf qq(Vanilla collation: %s CMP %s for $lang is %s\n), $a_text, $b_text, $result;

my $result1 = $COLL->cmp( $a_text, $b_text );    # returns 1, 0, or -1.
printf qq(Unicode::Collate collation: %s CMP %s is %s\n), $a_text, $b_text, $result1;
}

Answer 1

结果是正确的。

Unicode Collation Algorithm在mappings的帮助下定义了事物的排序方式，其中包括以下内容：

0024  ; [.15BA.0020.0002] # DOLLAR SIGN
0025  ; [*037A.0020.0002] # PERCENT SIGN