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ICU-6824 Merge in another function from CLDR

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X-SVN-Rev: 26440
This commit is contained in:
Mark Davis 2009-07-24 23:20:30 +00:00
parent b845779b1c
commit 1e5826f41a
1 changed files with 19 additions and 0 deletions
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19
icu4j/main/classes/core/src/com/ibm/icu/text/UnicodeSet.java
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@ -4186,5 +4186,24 @@ public class UnicodeSet extends UnicodeFilter implements Iterable<String>, Compa
int result = s.codePointAt(0);
return (result < 0x10000) == (length == 1) ? result : Integer.MAX_VALUE;
}
/**
* Simplify the ranges in a Unicode set by merging any ranges that are only separated by characters in the dontCare set.
* For example, the ranges: \\u2E80-\\u2E99\\u2E9B-\\u2EF3\\u2F00-\\u2FD5\\u2FF0-\\u2FFB\\u3000-\\u303E change to \\u2E80-\\u303E
* if the dontCare set includes unassigned characters (for a particular version of Unicode).
* @param input Set to be modified
* @param dontCare Set with the don't-care characters for spanning
* @return
* @return the input set, modified
*/
public UnicodeSet addBridges(UnicodeSet dontCare) {
UnicodeSet notInInput = new UnicodeSet(this).complement();
for (UnicodeSetIterator it = new UnicodeSetIterator(notInInput); it.nextRange();) {
if (it.codepoint != 0 && it.codepoint != UnicodeSetIterator.IS_STRING && it.codepointEnd != 0x10FFFF && dontCare.contains(it.codepoint,it.codepointEnd)) {
add(it.codepoint,it.codepointEnd);
}
}
return this;
}
}
//eof