问题描述
我正在寻找一种方法来检测java字符串中的字符是否是组合字符。例如，
I am looking for a way to detect if a character in a java string "is a combining character" or not. For instance,
String khmerCombiningVowel =
new String(new byte[]{(byte) 0xe1,(byte) 0x9f,(byte) 0x80}, "UTF-8"); // unicode 17c0
表示。我试过\\\\ {InCombiningDiacriticalMarks} ，是一些用于组合字符的块。
According to Algorithm to check for combining characters in Unicode, there are a number of blocks for combining characters.
Java有许多有用的功能，请尝试：
Java has a number of helpful functions, try:
String codePointStr = new String(new byte[]{(byte) 0xe1, (byte) 0x9f, (byte) 0x80}, "UTF-8"); // unicode 17c0
System.out.println(codePointStr.matches("\\p{Mc}"));
System.out.println(
Character.COMBINING_SPACING_MARK == Character.getType(codePointStr.codePointAt(0)));
（在两种情况下都打印为真）
(prints true in both cases)
在这种情况下，Mark，Spacing Combining，它基本上是任何与前一个字符组合的字符，同时还会增加宽度。
In this case, the COMBINING_SPACING_MARK (and related regex \p{gc=Mc}) both refer to the Unicode category "Mark, Spacing Combining" which is basically any character that combines with a previous character while also adding width.
其他可能有用的正则表达式：<$ h $ => http：//www.regular-expressions \p {M} .info / unicode.htmlrel =nofollow noreferrer>任何类型的标记。如果要使用Character getType（）常量，可以通过检查其类型是否为 COMBINING_SPACING_MARK 或 ENCLOSING_MARK ，或 NON_SPACING_MARK 。
Other regular expressions that may be useful: \p{M} for any kind of mark. If you want to use the Character getType() constants, you can get the same behavior to that by checking if its type is COMBINING_SPACING_MARK or ENCLOSING_MARK, or NON_SPACING_MARK.
ENCLOSING_MARK是一个周围的角色，就像一个圆圈 - 也为它结合的角色增加了宽度。
ENCLOSING_MARK is a surrounding character, like a circle--also adds width to the character it combines with.
包括拉丁字母变音组合标记等（标记基本上位于顶部或以下，并且不要为角色添加任何宽度。）
NON_SPACING_MARK includes the Latin alphabet diacritical combining marks, etc. (Marks that basically go on top or below, and don't add any width to the character).
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