pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / src / java / org / apache / lucene / analysis / MappingCharFilter.java

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/MappingCharFilter.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/MappingCharFilter.java
deleted file mode 100644 (file)
index 08097cc..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/analysis/MappingCharFilter.java
+++ /dev/null
@@ -1,137 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.lucene.analysis;
-
-import java.io.IOException;
-import java.io.Reader;
-import java.util.LinkedList;
-
-/**
- * Simplistic {@link CharFilter} that applies the mappings
- * contained in a {@link NormalizeCharMap} to the character
- * stream, and correcting the resulting changes to the
- * offsets.
- */
-public class MappingCharFilter extends BaseCharFilter {
-
-  private final NormalizeCharMap normMap;
-  private LinkedList<Character> buffer;
-  private String replacement;
-  private int charPointer;
-  private int nextCharCounter;
-
-  /** Default constructor that takes a {@link CharStream}. */
-  public MappingCharFilter(NormalizeCharMap normMap, CharStream in) {
-    super(in);
-    this.normMap = normMap;
-  }
-
-  /** Easy-use constructor that takes a {@link Reader}. */
-  public MappingCharFilter(NormalizeCharMap normMap, Reader in) {
-    super(CharReader.get(in));
-    this.normMap = normMap;
-  }
-
-  @Override
-  public int read() throws IOException {
-    while(true) {
-      if (replacement != null && charPointer < replacement.length()) {
-        return replacement.charAt(charPointer++);
-      }
-
-      int firstChar = nextChar();
-      if (firstChar == -1) return -1;
-      NormalizeCharMap nm = normMap.submap != null ?
-        normMap.submap.get(Character.valueOf((char) firstChar)) : null;
-      if (nm == null) return firstChar;
-      NormalizeCharMap result = match(nm);
-      if (result == null) return firstChar;
-      replacement = result.normStr;
-      charPointer = 0;
-      if (result.diff != 0) {
-        int prevCumulativeDiff = getLastCumulativeDiff();
-        if (result.diff < 0) {
-          for(int i = 0; i < -result.diff ; i++)
-            addOffCorrectMap(nextCharCounter + i - prevCumulativeDiff, prevCumulativeDiff - 1 - i);
-        } else {
-          addOffCorrectMap(nextCharCounter - result.diff - prevCumulativeDiff, prevCumulativeDiff + result.diff);
-        }
-      }
-    }
-  }
-
-  private int nextChar() throws IOException {
-    nextCharCounter++;
-    if (buffer != null && !buffer.isEmpty()) {
-      return buffer.removeFirst().charValue();
-    }
-    return input.read();
-  }
-
-  private void pushChar(int c) {
-    nextCharCounter--;
-    if(buffer == null)
-      buffer = new LinkedList<Character>();
-    buffer.addFirst(Character.valueOf((char) c));
-  }
-
-  private void pushLastChar(int c) {
-    if (buffer == null) {
-      buffer = new LinkedList<Character>();
-    }
-    buffer.addLast(Character.valueOf((char) c));
-  }
-
-  private NormalizeCharMap match(NormalizeCharMap map) throws IOException {
-    NormalizeCharMap result = null;
-    if (map.submap != null) {
-      int chr = nextChar();
-      if (chr != -1) {
-        NormalizeCharMap subMap = map.submap.get(Character.valueOf((char) chr));
-        if (subMap != null) {
-          result = match(subMap);
-        }
-        if (result == null) {
-          pushChar(chr);
-        }
-      }
-    }
-    if (result == null && map.normStr != null) {
-      result = map;
-    }
-    return result;
-  }
-
-  @Override
-  public int read(char[] cbuf, int off, int len) throws IOException {
-    char[] tmp = new char[len];
-    int l = input.read(tmp, 0, len);
-    if (l != -1) {
-      for(int i = 0; i < l; i++)
-        pushLastChar(tmp[i]);
-    }
-    l = 0;
-    for(int i = off; i < off + len; i++) {
-      int c = read();
-      if (c == -1) break;
-      cbuf[i] = (char) c;
-      l++;
-    }
-    return l == 0 ? -1 : l;
-  }
-}