从字符串中删除重音符号/变音符号，同时保留其他特殊字符（尝试mb_chars.normalize和iconv） [英] Removing accents/diacritics from string while preserving other special chars (tried mb_chars.normalize and iconv)

问题描述

已经有一个非常类似的问题 。一种解决方案使用的是这样的代码：

There is a very similar question already. One of the solutions uses code like this one:

string.mb_chars.normalize(:kd).gsub(/[^x00-\x7F]/n, '').to_s

这是一个奇观，直到您注意到它

Which works wonders, until you notice it also removes spaces, dots, dashes, and who knows what else.

我不太确定第一个代码的工作原理，但是可以去除只有重音？或至少会得到要保存的字符列表？我对正则表达式的了解很少，但是我尝试了一下（无济于事）：

I'm not really sure how the first code works, but could it be made to strip only accents? Or at the very least be given a list of chars to preserve? My knowledge of regexps is small, but I tried (to no avail):

/[^\-x00-\x7F]/n # So it would leave the dash alone

我将要做这样的事情：

string.mb_chars.normalize(:kd).gsub('-', '__DASH__').gsub
  (/[^x00-\x7F]/n, '').gsub('__DASH__', '-').to_s

凶恶？是的...

我也尝试过：

iconv = Iconv.new('UTF-8', 'US-ASCII//TRANSLIT') # Also tried ISO-8859-1
iconv.iconv 'Café' # Throws an error: Iconv::IllegalSequence: "é"

请帮助？

推荐答案

它还会删除空格，点，破折号以及其他谁知道的东西。

it also removes spaces, dots, dashes, and who knows what else.

不应该。

string.mb_chars.normalize(:kd).gsub(/[^x00-\x7F]/n, '').to_s

您输错了字，应该加反斜线在x00之前，指的是NUL字符。

You've mistyped, there should be a backslash before the x00, to refer to the NUL character.

/[^\-x00-\x7F]/n # So it would leave the dash alone

您已将'-'置于'\'之间和 x，它将破坏对空字符的引用，从而破坏范围。

You've put the ‘-’ between the ‘\’ and the ‘x’, which will break the reference to the null character, and thus break the range.

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