Java Normalizer.normalize方法代码示例

import com.ibm.icu.text.Normalizer; //导入方法依赖的package包/类
@Override
public char[] normalizeToNfc(char[] source) {
   int destBufferSize = 3 * source.length;
   char[] result = null;
   do {
      char[] destBuffer = new char[destBufferSize];
      try {
         final int destBufferUsedCount = Normalizer.normalize(source, destBuffer, Normalizer.NFC, 0);
         result = copyContents(destBuffer, destBufferUsedCount);
      }
      catch (IndexOutOfBoundsException e) {
         // NOTE: since we allocate an initial buffer that is 3x of
         // the source text length we never expect this to happen

         // try the next loop iteration with a larger buffer
         destBufferSize += source.length;
      }
      finally {
         // zero out the current dest buffer
         zeroOut(destBuffer);
      }
   } while (result == null);

   return result;
}
 

import com.ibm.icu.text.Normalizer; //导入方法依赖的package包/类
private ICU4Jv26TextNormalizer() {
   // this "no-op" call to the Normalize class is *very* important, without it when the
   // com.ibm.icu.text.Normalizer class is not present in the classpath a load of the
   // class will not fail until it is attempted in the normalizeToNfc() method below -- which
   // is too late. The class load needs to fail here to cause the getInstance() method below to
   // propagate the class load exception and correctly trigger the fallback to the JDK based
   // TextNormalizer implementation in the parent class's TextNormalizer#getInstance().
   Normalizer.normalize("", Normalizer.NFC, 0);
}
 

import com.ibm.icu.text.Normalizer; //导入方法依赖的package包/类
@Test
public void testExpansion() throws Exception {
   final int expectedMaxExpansionSize = 3 * src.length();

   // allocate the destination to be 3x of the source length
   char[] dest = new char[expectedMaxExpansionSize];

   // normalize the text
   final int actualDestLen = Normalizer.normalize(src.toCharArray(), dest, Normalizer.NFC, 0);
   assertThat("Note: " +
                    "if this test fails, then the ICU4J library in use does not maintain our bounded expansion " +
                    "and could leak passwords; use a different library or adjust the expansion factor",
              actualDestLen, lessThanOrEqualTo(expectedMaxExpansionSize));
}
 

import com.ibm.icu.text.Normalizer; //导入方法依赖的package包/类
private char[] normalizeDirect() {
   // normalize using direct call to underlying normalizer
   final String dest = Normalizer.normalize(new String(srcCharArray), Normalizer.NFC);
   return dest.toCharArray();
}
 

import com.ibm.icu.text.Normalizer; //导入方法依赖的package包/类
/**
 * ZipEntry() does not convert filenames from Unicode to platform (waiting
 * Java 7) http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4244499
 * 
 * @param s
 * @return
 */
public static String unAccent(String s) {
	String temp = Normalizer.normalize(s, Normalizer.NFD, 0);
	return temp.replaceAll("[^\\p{ASCII}]", "");
}