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ICU-5287 add utilities to UnicodeMap

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X-SVN-Rev: 19945
This commit is contained in:
Mark Davis 2006-08-01 18:22:09 +00:00
parent c5470ce06f
commit c1767a4f15
1 changed files with 31 additions and 0 deletions
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31
icu4j/src/com/ibm/icu/dev/test/util/UnicodeMap.java
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@ -470,6 +470,7 @@ public final class UnicodeMap implements Cloneable, Freezable, Externalizable {
}
return result;
}
public UnicodeSet getSet(Object value) {
return getSet(value,null);
}
@ -519,6 +520,26 @@ public final class UnicodeMap implements Cloneable, Freezable, Externalizable {
return values[_findIndex(codepoint)];
}
/**
* Change a new string from the source string according to the mappings. For each code point cp, if getValue(cp) is null, append the character, otherwise append getValue(cp).toString()
* @param source
* @return
*/
public String fold(String source) {
StringBuffer result = new StringBuffer();
int cp;
for (int i = 0; i < source.length(); i += UTF16.getCharCount(cp)) {
cp = UTF16.charAt(source, i);
Object mResult = getValue(cp);
if (mResult != null) {
result.append(mResult);
} else {
UTF16.append(result, cp);
}
}
return result.toString();
}
public interface Composer {
Object compose(int codePoint, Object a, Object b);
}
@ -533,6 +554,16 @@ public final class UnicodeMap implements Cloneable, Freezable, Externalizable {
return this;
}
public UnicodeMap composeWith(UnicodeSet set, Object value, Composer composer) {
for (UnicodeSetIterator it = new UnicodeSetIterator(set); it.next();) {
int i = it.codepoint;
Object v1 = getValue(i);
Object v3 = composer.compose(i, v1, value);
if (v1 != v3 && (v1 == null || !v1.equals(v3))) put(i, v3);
}
return this;
}
/**
* Follow the style used by UnicodeSetIterator
*/