| /* |
| * Copyright 2000-2014 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.util; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.util.SystemInfo; |
| import com.intellij.openapi.util.text.StringUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * <p>Identifies a line separator: |
| * either Unix ({@code \n}), Windows (@{code \r\n}) or (possible not actual anymore) Classic Mac ({@code \r}).</p> |
| * |
| * <p>The intention is to use this class everywhere, where a line separator is needed, instead of just Strings.</p> |
| * |
| * @author Kirill Likhodedov |
| */ |
| public enum LineSeparator { |
| LF("\n"), |
| CRLF("\r\n"), |
| CR("\r"); |
| |
| private static final Logger LOG = Logger.getInstance(LineSeparator.class); |
| private final String mySeparatorString; |
| |
| LineSeparator(@NotNull String separatorString) { |
| mySeparatorString = separatorString; |
| } |
| |
| @NotNull |
| public static LineSeparator fromString(@NotNull String string) { |
| for (LineSeparator separator : values()) { |
| if (separator.getSeparatorString().equals(string)) { |
| return separator; |
| } |
| } |
| LOG.error("Invalid string for line separator: " + StringUtil.escapeStringCharacters(string)); |
| return getSystemLineSeparator(); |
| } |
| |
| @NotNull |
| public String getSeparatorString() { |
| return mySeparatorString; |
| } |
| |
| public static boolean knownAndDifferent(@Nullable LineSeparator separator1, @Nullable LineSeparator separator2) { |
| return separator1 != null && separator2 != null && !separator1.equals(separator2); |
| } |
| |
| @NotNull |
| public static LineSeparator getSystemLineSeparator() { |
| if (SystemInfo.isWindows) { |
| return CRLF; |
| } |
| return LF; |
| } |
| } |