Java正则表达式匹配基本多语言平面之外的字符
如何在java中的unicode Basic Multilingual Plane外部匹配字符（有意删除它们）？
没有找到相关结果
已邀请:
2 个回复
室邢
String sanitizedString = inputString.replaceAll("[^u0000-uFFFF]", "");嗜蒂谷尘旱
构造包含更高层的代码点的字符串，并且正则表达式将按预期工作：String test = new StringBuilder().append("test").appendCodePoint(0x10300).append("test").toString(); Pattern regex = Pattern.compile(new StringBuilder().appendCodePoint(0x10300).toString()); Matcher matcher = regex.matcher(test); matcher.find(); System.out.println(matcher.start());而不是正则表达式：StringBuilder sb = new StringBuilder(test.length()); for (int ii = 0 ; ii < test.length() ; ) { int codePoint = test.codePointAt(ii); if (codePoint > 0xFFFF) { ii += Character.charCount(codePoint); } else { sb.appendCodePoint(codePoint); ii++; } }