如何将UCS2字符串转换为UTF8？

How to convert a string that is in UCS2 (2 bytes per character) into a UTF8 string in Ruby?

如何将UCS2中的字符串(每个字符2个字节)转换为Ruby中的UTF8字符串?

3 个解决方案

#1

You should look into iconv, which is part of the Ruby standard library. It is designed for this task.

您应该查看iconv,它是Ruby标准库的一部分。它专为此任务而设计。

Specifically,

 Iconv.iconv("utf-8", "utf-16", str).first

should handle the conversion.

应该处理转换。

#2

Because chars in most cases string in UCS2 encoding can be represented as UTF-16 string (in UTF-16 char with codes bigger than 0x10000 is rarely used) I think use of Iconv is better way to convert strings. Sample code:

因为大多数情况下字符串在UCS2编码中的字符串可以表示为UTF-16字符串(在代码大于0x10000的UTF-16字符中很少使用)我认为使用Iconv是转换字符串的更好方法。示例代码:

require 'iconv'

ic = Iconv.new 'UTF-8', 'UTF-16'
utf8string = ic.iconv ucs2string

#3

With Ruby 1.9:

使用Ruby 1.9:

string.encode("utf-8")

If the string encoding is not known, you may need to set it first:

如果字符串编码未知,您可能需要先设置它:

string.force_encoding("utf-16be").encode("utf-8") # Big-endian
string.force_encoding("utf-16le").encode("utf-8") # Little-endian

#1