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jdk/src/java.base/share/classes/sun/text/normalizer/CharTrie.java
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
@@ -20,26 +20,22 @@
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
+
/*
- *******************************************************************************
- * (C) Copyright IBM Corp. and others, 1996-2009 - All Rights Reserved *
- * *
- * The original version of this source code and documentation is copyrighted *
- * and owned by IBM, These materials are provided under terms of a License *
- * Agreement between IBM and Sun. This technology is protected by multiple *
- * US and International patents. This notice and attribution to IBM may not *
- * to removed. *
- *******************************************************************************
+ ******************************************************************************
+ * Copyright (C) 1996-2014, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ ******************************************************************************
*/
package sun.text.normalizer;
-import java.io.InputStream;
import java.io.DataInputStream;
+import java.io.InputStream;
import java.io.IOException;
/**
* Trie implementation which stores data in char, 16 bits.
* @author synwee
@@ -71,123 +67,20 @@
if (!isCharTrie()) {
throw new IllegalArgumentException(
"Data given does not belong to a char trie.");
}
- m_friendAgent_ = new FriendAgent();
- }
-
- /**
- * Make a dummy CharTrie.
- * A dummy trie is an empty runtime trie, used when a real data trie cannot
- * be loaded.
- *
- * The trie always returns the initialValue,
- * or the leadUnitValue for lead surrogate code points.
- * The Latin-1 part is always set up to be linear.
- *
- * @param initialValue the initial value that is set for all code points
- * @param leadUnitValue the value for lead surrogate code _units_ that do not
- * have associated supplementary data
- * @param dataManipulate object which provides methods to parse the char data
- */
- public CharTrie(int initialValue, int leadUnitValue, DataManipulate dataManipulate) {
- super(new char[BMP_INDEX_LENGTH+SURROGATE_BLOCK_COUNT], HEADER_OPTIONS_LATIN1_IS_LINEAR_MASK_, dataManipulate);
-
- int dataLength, latin1Length, i, limit;
- char block;
-
- /* calculate the actual size of the dummy trie data */
-
- /* max(Latin-1, block 0) */
- dataLength=latin1Length= INDEX_STAGE_1_SHIFT_<=8 ? 256 : DATA_BLOCK_LENGTH;
- if(leadUnitValue!=initialValue) {
- dataLength+=DATA_BLOCK_LENGTH;
- }
- m_data_=new char[dataLength];
- m_dataLength_=dataLength;
-
- m_initialValue_=(char)initialValue;
-
- /* fill the index and data arrays */
-
- /* indexes are preset to 0 (block 0) */
-
- /* Latin-1 data */
- for(i=0; i<latin1Length; ++i) {
- m_data_[i]=(char)initialValue;
- }
-
- if(leadUnitValue!=initialValue) {
- /* indexes for lead surrogate code units to the block after Latin-1 */
- block=(char)(latin1Length>>INDEX_STAGE_2_SHIFT_);
- i=0xd800>>INDEX_STAGE_1_SHIFT_;
- limit=0xdc00>>INDEX_STAGE_1_SHIFT_;
- for(; i<limit; ++i) {
- m_index_[i]=block;
- }
-
- /* data for lead surrogate code units */
- limit=latin1Length+DATA_BLOCK_LENGTH;
- for(i=latin1Length; i<limit; ++i) {
- m_data_[i]=(char)leadUnitValue;
- }
- }
-
- m_friendAgent_ = new FriendAgent();
- }
-
- /**
- * Java friend implementation
- */
- public class FriendAgent
- {
- /**
- * Gives out the index array of the trie
- * @return index array of trie
- */
- public char[] getPrivateIndex()
- {
- return m_index_;
- }
- /**
- * Gives out the data array of the trie
- * @return data array of trie
- */
- public char[] getPrivateData()
- {
- return m_data_;
- }
- /**
- * Gives out the data offset in the trie
- * @return data offset in the trie
- */
- public int getPrivateInitialValue()
- {
- return m_initialValue_;
- }
}
// public methods --------------------------------------------------
/**
- * Java friend implementation
- * To store the index and data array into the argument.
- * @param friend java friend UCharacterProperty object to store the array
- */
- public void putIndexData(UCharacterProperty friend)
- {
- friend.setIndexData(m_friendAgent_);
- }
-
- /**
* Gets the value associated with the codepoint.
* If no value is associated with the codepoint, a default value will be
* returned.
* @param ch codepoint
* @return offset to data
- * @draft 2.1
*/
public final char getCodePointValue(int ch)
{
int offset;
@@ -213,56 +106,16 @@
* Returned data may contain folding offset information for the next
* trailing surrogate character.
* This method does not guarantee correct results for trail surrogates.
* @param ch lead surrogate character
* @return data value
- * @draft 2.1
*/
public final char getLeadValue(char ch)
{
return m_data_[getLeadOffset(ch)];
}
- /**
- * Get the value associated with a pair of surrogates.
- * @param lead a lead surrogate
- * @param trail a trail surrogate
- * @draft 2.1
- */
- public final char getSurrogateValue(char lead, char trail)
- {
- int offset = getSurrogateOffset(lead, trail);
- if (offset > 0) {
- return m_data_[offset];
- }
- return m_initialValue_;
- }
-
- /**
- * <p>Get a value from a folding offset (from the value of a lead surrogate)
- * and a trail surrogate.</p>
- * <p>If the
- * @param leadvalue value associated with the lead surrogate which contains
- * the folding offset
- * @param trail surrogate
- * @return trie data value associated with the trail character
- * @draft 2.1
- */
- public final char getTrailValue(int leadvalue, char trail)
- {
- if (m_dataManipulate_ == null) {
- throw new NullPointerException(
- "The field DataManipulate in this Trie is null");
- }
- int offset = m_dataManipulate_.getFoldingOffset(leadvalue);
- if (offset > 0) {
- return m_data_[getRawOffset(offset,
- (char)(trail & SURROGATE_MASK_))];
- }
- return m_initialValue_;
- }
-
// protected methods -----------------------------------------------
/**
* <p>Parses the input stream and stores its trie content into a index and
* data array</p>
@@ -307,43 +160,16 @@
// return -1 if there is an error, in this case we return the default
// value: m_initialValue_
return -1;
}
- /**
- * Gets the value at the argument index.
- * For use internally in TrieIterator.
- * @param index value at index will be retrieved
- * @return 32 bit value
- * @see com.ibm.icu.impl.TrieIterator
- * @draft 2.1
- */
- protected final int getValue(int index)
- {
- return m_data_[index];
- }
-
- /**
- * Gets the default initial value
- * @return 32 bit value
- * @draft 2.1
- */
- protected final int getInitialValue()
- {
- return m_initialValue_;
- }
-
// private data members --------------------------------------------
/**
* Default value
*/
private char m_initialValue_;
/**
* Array of char data
*/
private char m_data_[];
- /**
- * Agent for friends
- */
- private FriendAgent m_friendAgent_;
}
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