| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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.intellij.openapi.diff.impl.processing; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.diff.impl.string.DiffString; |
| import com.intellij.openapi.util.TextRange; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.TestOnly; |
| |
| public class Word { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.openapi.diff.impl.processing.Word"); |
| @NotNull private final DiffString myBaseText; |
| @NotNull private final TextRange myRange; |
| @NotNull private final DiffString myText; |
| |
| @TestOnly |
| public Word(@NotNull String baseText, @NotNull TextRange range) { |
| this(DiffString.create(baseText), range); |
| } |
| |
| public Word(@NotNull DiffString baseText, @NotNull TextRange range) { |
| myBaseText = baseText; |
| myRange = range; |
| myText = myBaseText.substring(myRange.getStartOffset(), myRange.getEndOffset()); |
| LOG.assertTrue(myRange.getStartOffset() >= 0); |
| LOG.assertTrue(myRange.getEndOffset() >= myRange.getStartOffset(), myRange); |
| } |
| |
| public int hashCode() { |
| return myText.hashCode(); |
| } |
| |
| public boolean equals(Object obj) { |
| if (!(obj instanceof Word)) return false; |
| Word other = (Word)obj; |
| return getText().equals(other.getText()); |
| } |
| |
| @NotNull |
| public DiffString getText() { |
| return myText; |
| } |
| |
| @NotNull |
| public DiffString getPrefix(int fromPosition) { |
| LOG.assertTrue(fromPosition >= 0, fromPosition); |
| int wordStart = myRange.getStartOffset(); |
| LOG.assertTrue(fromPosition <= wordStart, fromPosition + " " + wordStart); |
| return myBaseText.substring(fromPosition, wordStart); |
| } |
| |
| public int getEnd() { |
| return myRange.getEndOffset(); |
| } |
| |
| public int getStart() { |
| return myRange.getStartOffset(); |
| } |
| |
| public String toString() { |
| return myText.toString(); |
| } |
| |
| public boolean isWhitespace() { |
| return false; |
| } |
| |
| public boolean atEndOfLine() { |
| int start = myRange.getStartOffset(); |
| if (start == 0) return true; |
| if (myBaseText.charAt(start - 1) == '\n') return true; |
| int end = myRange.getEndOffset(); |
| if (end == myBaseText.length()) return true; |
| if (myBaseText.charAt(end) == '\n') return true; |
| return false; |
| } |
| } |