Java 中 Pattern UNICODE_CASE 字段的示例
启用 Unicode 识别大小写转换。在 compile() 方法的 CASE_INSENSITIVE 标志符中用它作为标志值时,如果使用正则表达式搜索 Unicode 字符,则会匹配大小写 Unicode 字符。
示例
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class UNICODE_CASE_Example {
public static void main( String args[] ) {
String regex = "\u00de";
//Compiling the regular expression
Pattern pattern = Pattern.compile(regex, Pattern.UNICODE_CASE|Pattern.CASE_INSENSITIVE);
//Retrieving the matcher object
String str[] = {"\u00de", "\u00fe", "\u00ee", "\u00ce"};
for (String ele : str) {
Matcher matcher = pattern.matcher(ele);
if(matcher.matches()) {
System.out.println(ele+" is a match for "+regex);
} else {
System.out.println(ele+" is not a match for "+regex);
}
}
}
}
输出
? is a match for ? ? is a match for ? ? is not a match for ? ? is not a match for ?
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