Question

因此，我的代码只使用HTML标签创建字符串的inline-diff（基于每个单词），因此CSS可以隐藏/显示已删除/添加的字符串。在我的测试中，我使用（）进行添加，使用{}进行删除。

这是我的文字输入：

"e&nbsp;<b><u>Zerg</u></b>&nbsp;a"
"e Zerg a"

输出：

"e(?)(\240){&nbsp;<b>}{<u>}Zerg(?)(\240){</u>}{</b>}{&nbsp;}a"

现在，我根本没有做任何改变编码的事情，所以..我真的很困惑一个问号和\ 240如何进入那里。 o.o

这是什么类型的编码？

我正在使用ruby 1.8.7

找到问题的根源。当我将新字符串转换为Diff :: LCS使用的数组时会发生这种情况：

代码：

  def self.convert_html_string_to_html_array(str)
=begin
  Things like &nbsp (and other char codes), and tags need to be considered the same element
  also handles the decision to diff per char or per word

  also need to take into consideration javascript and css that might be in the middle of a selection
=end
    result = Array.new
    compare_words = str.has_at_least_one_word?
    i = 0
    while i < str.length do
      cur_char = str[i..i]
      case cur_char
      when "&"
        # for this we have two situations, a stray char code, and a char code preceeding a tag
        next_index = str.index(";", i)
        case str[next_index + 1..next_index + 1] # check to see if tag
        when "<"
          next_index = str.index(">", i)
        end
        result << str[i..next_index]
        i = next_index
      when "<"
        next_index = str.index(">", i)
        result << str[i..next_index]
        i = next_index
      when " "
        result << cur_char
      else
        if compare_words
          # in here we need to check the above rules again, cause tags can be touching regular text
          next_index = i + 1
          next_index = str.index(" ", next_index)
          next_index = str.length if next_index.nil?
          next_index -= 1

          if i < str.length and str[i..next_index].include?("<") # beginning of a tag
            next_index = str.index(">", i)
          end

          result << str[i..next_index] # don't want to include the space
          i = next_index
        else
          result << cur_char
        end
      end
      i += 1
    end

    return result # removes the trailing empty string
  end

澄清，这：

'e Zerg a'

变成了这个：

[
    [0] "e",
    [1] "\302",
    [2] "\240",
    [3] "Z",
    [4] "e",
    [5] "r",
    [6] "g",
    [7] "\302",
    [8] "\240",
    [9] "a"
]

Answer 1

更新到1.9.2或更高版本（我建议使用RVM），1.8.7有一些奇怪的东西用字符串...

在做一些字符串操作时，我遇到了一些奇怪的编码

1 个答案: