| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed 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 com.sun.org.apache.regexp.internal; |
| |
| /** |
| * Encapsulates char[] as CharacterIterator |
| * |
| * @author <a href="mailto:ales.novak@netbeans.com">Ales Novak</a> |
| */ |
| public final class CharacterArrayCharacterIterator implements CharacterIterator |
| { |
| /** encapsulated */ |
| private final char[] src; |
| /** offset in the char array */ |
| private final int off; |
| /** used portion of the array */ |
| private final int len; |
| |
| /** @param src - encapsulated String */ |
| public CharacterArrayCharacterIterator(char[] src, int off, int len) |
| { |
| this.src = src; |
| this.off = off; |
| this.len = len; |
| } |
| |
| /** @return a substring */ |
| public String substring(int beginIndex, int endIndex) |
| { |
| if (endIndex > len) { |
| throw new IndexOutOfBoundsException("endIndex=" + endIndex |
| + "; sequence size=" + len); |
| } |
| if (beginIndex < 0 || beginIndex > endIndex) { |
| throw new IndexOutOfBoundsException("beginIndex=" + beginIndex |
| + "; endIndex=" + endIndex); |
| } |
| return new String(src, off + beginIndex, endIndex - beginIndex); |
| } |
| |
| /** @return a substring */ |
| public String substring(int beginIndex) |
| { |
| return substring(beginIndex, len); |
| } |
| |
| /** @return a character at the specified position. */ |
| public char charAt(int pos) |
| { |
| return src[off + pos]; |
| } |
| |
| /** @return <tt>true</tt> iff if the specified index is after the end of the character stream */ |
| public boolean isEnd(int pos) |
| { |
| return (pos >= len); |
| } |
| } |