土耳其字符的小写字母点缀我 [英] lower case of turkish character dotted i

问题描述

在Java 6中，

System.out.println(String.valueOf('\u0130').toLowerCase());

打印i(u0069)，但是在Java 7中，它用双点(u0069 u0307)打印i.

prints i (u0069), but in Java 7 it prints i with double dots (u0069 u0307).

我知道这是土耳其语字符，但是如何使用此代码使Java 7输出与v6相同的输出?

I understand it is a Turkish character, but how do I make Java 7 print the same output as v6 using this code?

System.out.println(inputText.toLowerCase());

还要确保代码可以处理国际文本，而无需对toLowerCase函数进行硬编码以仅使用土耳其语区域设置.

Also make sure that the code can handle international text without hardcoding the toLowerCase function to use only Turkish locale.

推荐答案

有一个非常详细的让我尝试总结以下重要部分:

Let me try to summarize the essential parts:

在Java 7中，此方法的确发生了变化，并且处理此字符的方式与Java 6不同.添加了以下代码:

In Java 7 this method has indeed changed and handles this char differently than Java 6. The following code was added:

} else if (srcChar == '\u0130') { // LATIN CAPITAL LETTER I DOT
    lowerChar = Character.ERROR;
}

==>此更改以以下方式导致:

==> This change results in the following way:

基本上，此更改的最终结果是针对此特定情况 (大写的虚线I)，Java 7现在使用特殊的Unicode 角色数据库 ( http://www.unicode.org/Public/UNIDATA/SpecialCasing.txt)， 提供有关复杂案例映射的数据.查看此文件，您可以 看到几行大写的虚线I:

Basically the end result of this change is that for this specific case (the upper-case dotted I), Java 7 now consults a special Unicode character database (http://www.unicode.org/Public/UNIDATA/SpecialCasing.txt), which provides data on complex case-mappings. Looking at this file you can see several lines for the upper-case dotted I:

CODE       LOWER   TITLE   UPPER  LANGUAGE
0130;  0069 0307;   0130;   0130;
0130;  0069;        0130;   0130;       tr;
0130;  0069;        0130;   0130;       az;

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