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ICU-2499

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documentation update

X-SVN-Rev: 10270
This commit is contained in:
Syn Wee Quek 2002-11-15 20:39:26 +00:00
parent 1f3d8b8ae9
commit ac22feda0d
2 changed files with 27 additions and 9 deletions
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20
icu4j/src/com/ibm/icu/impl/TrieIterator.java
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@ -5,8 +5,8 @@
******************************************************************************
*
* $Source: /xsrl/Nsvn/icu/icu4j/src/com/ibm/icu/impl/TrieIterator.java,v $
* $Date: 2002/07/12 21:59:22 $
* $Revision: 1.6 $
* $Date: 2002/11/15 20:39:26 $
* $Revision: 1.7 $
*
******************************************************************************
*/
@ -29,6 +29,22 @@ import com.ibm.icu.util.RangeValueIterator;
* and the IntTrie, hence to accommodate both types of data, the return
* result will be in terms of int (32 bit) values.</p>
* <p>See com.ibm.icu.text.UCharacterTypeIterator for examples of use.</p>
* <p>Notes for porting utrie_enum from icu4c to icu4j:<br>
* Internally, icu4c's utrie_enum performs all iterations in its body. In Java
* sense, the caller will have to pass a object with a callback function
* UTrieEnumRange(const void *context, UChar32 start, UChar32 limit,
* uint32_t value) into utrie_enum. utrie_enum will then find ranges of
* codepoints with the same value as determined by
* UTrieEnumValue(const void *context, uint32_t value). for each range,
* utrie_enum calls the callback function to perform a task. In this way,
* icu4c performs the iteration within utrie_enum.
* To follow the JDK model, icu4j is slightly different from icu4c.
* Instead of requesting the caller to implement an object for a callback.
* The caller will have to implement a subclass of TrieIterator, fleshing out
* the method extract(int) (equivalent to UTrieEnumValue). Independent of icu4j,
* the caller will have to code his own iteration and flesh out the task
* (equivalent to UTrieEnumRange) to be performed in the iteration loop.
* </p>
* @author synwee
* @see com.ibm.icu.util.Trie
* @see com.ibm.icu.text.UCharacterTypeIterator

16
icu4j/src/com/ibm/icu/lang/UCharacterTypeIterator.java
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@ -5,8 +5,8 @@
******************************************************************************
*
* $Source: /xsrl/Nsvn/icu/icu4j/src/com/ibm/icu/lang/UCharacterTypeIterator.java,v $
* $Date: 2002/10/03 23:42:02 $
* $Revision: 1.6 $
* $Date: 2002/11/15 20:39:26 $
* $Revision: 1.7 $
*
******************************************************************************
*/
@ -22,13 +22,15 @@ import com.ibm.icu.impl.UCharacterProperty;
* the same type.
* Example of use:<br>
* <pre>
* UCharacterTypeIterator iterator = UCharacter.getUCharacterTypeIterator();
* while (iterator.next()) {
* RangeValueIterator iterator = UCharacter.getTypeIterator();
* RangeValueIterator.Element element = new RangeValueIterator.Element();
* while (iterator.next(element)) {
* System.out.println("Codepoint \\u" +
* Integer.toHexString(iterator.getStart()) +
* Integer.toHexString(element.start) +
* " to codepoint \\u" +
* Integer.toHexString(iterator.getLimit() - 1) +
* " has the character type " + iterator.getValue());
* Integer.toHexString(element.limit - 1) +
* " has the character type " +
* element.value);
* }
* </pre>
* @author synwee