Question

我从DB中获得了“â€”的字符。我从中获取的表是latin1字符集。我需要正确地展示这些角色。如何在Ruby on rails上做到这一点？是否有一个函数或一段代码会用正确的代码替换这些字符？

Answer 1

您可能需要设置数据库字符串的编码。试试encode的{{1}}方法：

String

如果ISO 8859 1不适合您，还有很多其他编码。如果用户浏览器不支持正确的编码，您可以将选项传递给dbstr.encode("iso-8859-1")，以使其用encode等替换未知数。

Answer 2

我尝试了所有编码，直到找到正确的编码

text.encode('windows-1250').force_encoding("UTF-8")
text.encode('utf-7').force_encoding("UTF-8")
text.encode('ibm852').force_encoding("UTF-8")
text.encode('shift_jis').force_encoding("UTF-8")
text.encode('iso-2022-jp').force_encoding("UTF-8")
text.encode("Windows-1252").force_encoding("UTF-8")
text.encode("latin1").force_encoding("UTF-8")
text.encode("ISO-8859-1").force_encoding("UTF-8")
text.encode("ISO-8859-2").force_encoding("UTF-8")
text.encode("ISO-8859-3").force_encoding("UTF-8")
text.encode("ISO-8859-4").force_encoding("UTF-8")
text.encode("ISO-8859-5").force_encoding("UTF-8")
text.encode("ISO-8859-6").force_encoding("UTF-8")
text.encode("ISO-8859-7").force_encoding("UTF-8")
text.encode("ISO-8859-8").force_encoding("UTF-8")
text.encode("ISO-8859-9").force_encoding("UTF-8")
text.encode("ISO-8859-10").force_encoding("UTF-8")
text.encode("ISO-8859-11").force_encoding("UTF-8")
text.encode("ISO-8859-12").force_encoding("UTF-8")
text.encode("ISO-8859-13").force_encoding("UTF-8")
text.encode("ISO-8859-14").force_encoding("UTF-8")
text.encode("ISO-8859-15").force_encoding("UTF-8")

然后，我创建了无效字符的映射，并使用脚本（受https://markmcb.com/2011/11/07/replacing-with-utf-8-characters-in-ruby-on-rails/启发）替换了它们

def fix(text)
  replacements = [
    ['â€“',           "—"],
    ["â€”",           "–"],
    ["â€˜",           "‘"],
    ['â€¦',           '…'],
    ['â€™',           '’'],
    ['â€œ',           '“'],
    [/â€[[:cntrl:]]/, '”'],
    ['â€?',           '”'],
    ['â€ť',           '”'],
    ['â€ś',           '“'],
    ['â€¨',           '—'], # not sure about this one
    ['â€ł',           '″'],
    ['â€Ž',           ''], # emtpy str
    ['â€‚',           ''], # emtpy str
    ['â€‰',           ''], # emtpy str
    ['â€‹',           ''], # emtpy str
    ['â€',           ''], # emtpy str
    ["â€s'",           ''], # emtpy str
  ]

  new_text = text
  replacements.each { |set| new_text = new_text.gsub(set[0], set[1]) }
  new_text
end

# rails automatically will check if publication was changed and won't save if it wasn't changed
Publication.where('content like ?', "%â€%").find_each do |publication|
  publication.title         = fix(publication.title)
  publication.content       = fix(publication.content)
  publication.short_content = fix(publication.short_content)
  publication.save!
end

直到Publication.where('content like ?', "%â€%").count等于0

如何在轨道上的红宝石中正确渲染特殊字符？

2 个答案: