java - 将包含土耳其语字符的字符串转换为小写

Question

我想将包含土耳其语字符的字符串转换为小写，并将土耳其语字符映射为英语等价物，即 "İĞŞÇ" -> "igsc"。

当我使用 toLowerCase(new Locale("en", "US")) 函数时，它会将例如 © 转换为 i 但是点缀。

我该如何解决这个问题？ (我正在使用 Java 7)

谢谢。

Answer 1

你可以

1) 首先，删除重音符:

以下内容来自本主题:

Is there a way to get rid of accents and convert a whole string to regular letters? :

Use java.text.Normalizer to handle this for you.

string = Normalizer.normalize(string, Normalizer.Form.NFD);

This will separate all of the accent marks from the characters. Then, you just need to compare each character against being a letter and throw out the ones that aren't.

string = string.replaceAll("[^\\p{ASCII}]", "");

If your text is in unicode, you should use this instead:

string = string.replaceAll("\\p{M}", "");

For unicode, \P{M} matches the base glyph and \p{M} (lowercase) matches each accent.

2) 然后，把剩下的String转为小写

string = string.toLowerCase();