Perl的“标准字符串比较顺序”是什么?

sort sort locale

Learning Perl Perl_sv_cmp 知道 locale bytes

/*
=for apidoc sv_cmp

Compares the strings in two SVs.  Returns -1, 0, or 1 indicating whether the
string in C<sv1> is less than, equal to, or greater than the string in
C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will
coerce its args to strings if necessary.  See also C<sv_cmp_locale>.

=cut
*/

 pv1 = tpv = (char*)bytes_to_utf8((const U8*)pv1, &cur1);

pv1

 const I32 retval = memcmp((const void*)pv1, (const void*)pv2, cur1 < cur2 ? cur1 : cur2);

在我看来,它曾经 和 pv2 ,他们被迫 char * ,现在只是逐字节比较,因为它们被强制为 void * .事情就是这样吗 memcmp Perl_bytes_to_utf8 在 没有帮我回答那个问题。

Unicode Collation Algorithm ?如果是,为什么 Unicode::Collate 排序