pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / contrib / queryparser / src / java / org / apache / lucene / queryParser / surround / parser / FastCharStream.java

diff --git a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/surround/parser/FastCharStream.java b/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/surround/parser/FastCharStream.java
deleted file mode 100644 (file)
index 093c4eb..0000000
--- a/lucene-java-3.4.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/surround/parser/FastCharStream.java
+++ /dev/null
@@ -1,121 +0,0 @@
-// FastCharStream.java
-package org.apache.lucene.queryParser.surround.parser;
-/**
- * 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.
- */
-
-import java.io.*;
-
-/** An efficient implementation of JavaCC's CharStream interface.  <p>Note that
- * this does not do line-number counting, but instead keeps track of the
- * character position of the token in the input, as required by Lucene's {@link
- * org.apache.lucene.analysis.Token} API. */
-public final class FastCharStream implements CharStream {
-  char[] buffer = null;
-
-  int bufferLength = 0;                                  // end of valid chars
-  int bufferPosition = 0;                        // next char to read
-
-  int tokenStart = 0;                            // offset in buffer
-  int bufferStart = 0;                           // position in file of buffer
-
-  Reader input;                                          // source of chars
-
-  /** Constructs from a Reader. */
-  public FastCharStream(Reader r) {
-    input = r;
-  }
-
-  public final char readChar() throws IOException {
-    if (bufferPosition >= bufferLength)
-      refill();
-    return buffer[bufferPosition++];
-  }
-
-  private final void refill() throws IOException {
-    int newPosition = bufferLength - tokenStart;
-
-    if (tokenStart == 0) {                       // token won't fit in buffer
-      if (buffer == null) {                      // first time: alloc buffer
-       buffer = new char[2048];
-      } else if (bufferLength == buffer.length) { // grow buffer
-       char[] newBuffer = new char[buffer.length*2];
-       System.arraycopy(buffer, 0, newBuffer, 0, bufferLength);
-       buffer = newBuffer;
-      }
-    } else {                                     // shift token to front
-      System.arraycopy(buffer, tokenStart, buffer, 0, newPosition);
-    }
-
-    bufferLength = newPosition;                          // update state
-    bufferPosition = newPosition;
-    bufferStart += tokenStart;
-    tokenStart = 0;
-
-    int charsRead =                              // fill space in buffer
-      input.read(buffer, newPosition, buffer.length-newPosition);
-    if (charsRead == -1)
-      throw new IOException("read past eof");
-    else
-      bufferLength += charsRead;
-  }
-
-  public final char BeginToken() throws IOException {
-    tokenStart = bufferPosition;
-    return readChar();
-  }
-
-  public final void backup(int amount) {
-    bufferPosition -= amount;
-  }
-
-  public final String GetImage() {
-    return new String(buffer, tokenStart, bufferPosition - tokenStart);
-  }
-
-  public final char[] GetSuffix(int len) {
-    char[] value = new char[len];
-    System.arraycopy(buffer, bufferPosition - len, value, 0, len);
-    return value;
-  }
-
-  public final void Done() {
-    try {
-      input.close();
-    } catch (IOException e) {
-      System.err.println("Caught: " + e + "; ignoring.");
-    }
-  }
-
-  public final int getColumn() {
-    return bufferStart + bufferPosition;
-  }
-  public final int getLine() {
-    return 1;
-  }
-  public final int getEndColumn() {
-    return bufferStart + bufferPosition;
-  }
-  public final int getEndLine() {
-    return 1;
-  }
-  public final int getBeginColumn() {
-    return bufferStart + tokenStart;
-  }
-  public final int getBeginLine() {
-    return 1;
-  }
-}