| /* |
| * 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.lang.properties.psi; |
| |
| import gnu.trove.TIntHashSet; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author Konstantin Bulenkov |
| */ |
| public class PropertiesResourceBundleUtil { |
| private static final TIntHashSet SYMBOLS_TO_ESCAPE = new TIntHashSet(new int[]{'#', '!', '=', ':'}); |
| private static final char ESCAPE_SYMBOL = '\\'; |
| |
| |
| /** |
| * Allows to map given 'raw' property value text to the 'user-friendly' text to show at the resource bundle editor. |
| * <p/> |
| * <b>Note:</b> please refer to {@link java.util.Properties#store(java.io.Writer, String)} contract for the property value escape rules. |
| * |
| * @param text 'raw' property value text |
| * @return 'user-friendly' text to show at the resource bundle editor |
| */ |
| @SuppressWarnings("AssignmentToForLoopParameter") |
| @NotNull |
| public static String fromPropertyValueToValueEditor(@NotNull String text) { |
| StringBuilder buffer = new StringBuilder(); |
| boolean escaped = false; |
| for (int i = 0; i < text.length(); i++) { |
| char c = text.charAt(i); |
| if (c == ESCAPE_SYMBOL && !escaped && (i == text.length() - 1 || (text.charAt(i + 1) != 'u' && text.charAt(i + 1) != 'U'))) { |
| escaped = true; |
| continue; |
| } |
| if (escaped && c == 'n') { |
| buffer.append(ESCAPE_SYMBOL); |
| } |
| buffer.append(c); |
| escaped = false; |
| } |
| return buffer.toString(); |
| } |
| |
| /** |
| * Perform reverse operation to {@link #fromPropertyValueToValueEditor(String)}. |
| * |
| * @param text 'user-friendly' text shown to the user at the resource bundle editor |
| * @return 'raw' value to store at the *.properties file |
| */ |
| @NotNull |
| public static String fromValueEditorToPropertyValue(@NotNull String text) { |
| StringBuilder buffer = new StringBuilder(); |
| for (int i = 0; i < text.length(); i++) { |
| char c = text.charAt(i); |
| |
| if ((i == 0 && (c == ' ' || c == '\t')) // Leading white space |
| || c == '\n' // Multi-line value |
| || SYMBOLS_TO_ESCAPE.contains(c)) // Special symbol |
| { |
| buffer.append(ESCAPE_SYMBOL); |
| } |
| else if (c == ESCAPE_SYMBOL) { // Escaped 'escape' symbol) |
| if (text.length() > i + 1) { |
| final char nextChar = text.charAt(i + 1); |
| if (nextChar != 'n' && nextChar != 'u' && nextChar != 'U') { |
| buffer.append(ESCAPE_SYMBOL); |
| } |
| } else { |
| buffer.append(ESCAPE_SYMBOL); |
| } |
| } |
| buffer.append(c); |
| } |
| return buffer.toString(); |
| } |
| } |