大写Unicode的正则表达式与“Ó"不匹配? [英] Regex for uppercase Unicode does not match "Ó"?

问题描述

似乎无法将重音符号Ó识别为大写字母

It seems that it does not recognize the accented Ó as uppercase

#!/usr/bin/env perl
use strict;
use warnings;
use 5.14.0;
use utf8;
use feature 'unicode_strings';

" SIMÓN " =~ /^\s+(\p{Upper}+)/u;
print "$1\n";

返回

SIM

Perl应该能够使用Unicode数据，该数据已经将Ó标记为大写. 从emacs describe-char

Perl should be able to use Unicode data, which already tags Ó as uppercase. From emacs describe-char

character code properties: customize what to show
  name: LATIN CAPITAL LETTER O WITH ACUTE
  old-name: LATIN CAPITAL LETTER O ACUTE
  general-category: Lu (Letter, Uppercase)
  decomposition: (79 769) ('O' '́')

推荐答案

您缺少use open ':std', ':locale';来正确编码输出.

You're missing use open ':std', ':locale'; to properly encode your output.

如果这不起作用，即使您告诉Perl，文件也不会使用UTF-8编码.

If that doesn't work, your file isn't encoded using UTF-8 even though you tell Perl it is.

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