| /* |
| * 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.psi.impl.source.resolve.reference.impl.manipulators; |
| |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.*; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author ven |
| */ |
| public class StringLiteralManipulator extends AbstractElementManipulator<PsiLiteralExpression> { |
| @Override |
| public PsiLiteralExpression handleContentChange(@NotNull PsiLiteralExpression expr, @NotNull TextRange range, String newContent) throws IncorrectOperationException { |
| String oldText = expr.getText(); |
| if (oldText.startsWith("\"")) { |
| newContent = StringUtil.escapeStringCharacters(newContent); |
| } |
| else if (oldText.startsWith("'") && newContent.length() <= 1) { |
| newContent = newContent.length() == 1 && newContent.charAt(0) == '\''? "\\'" : newContent; |
| } |
| else { |
| throw new IncorrectOperationException("cannot handle content change for: " + oldText + ", expr: " + expr); |
| } |
| |
| String newText = oldText.substring(0, range.getStartOffset()) + newContent + oldText.substring(range.getEndOffset()); |
| final PsiExpression newExpr = JavaPsiFacade.getInstance(expr.getProject()).getElementFactory().createExpressionFromText(newText, null); |
| return (PsiLiteralExpression)expr.replace(newExpr); |
| } |
| |
| @NotNull |
| @Override |
| public TextRange getRangeInElement(@NotNull final PsiLiteralExpression element) { |
| return getValueRange(element); |
| } |
| |
| @NotNull |
| public static TextRange getValueRange(@NotNull PsiLiteralExpression element) { |
| final Object value = element.getValue(); |
| if (!(value instanceof String || value instanceof Character)) return TextRange.from(0, element.getTextLength()); |
| return new TextRange(1, Math.max(1, element.getTextLength() - 1)); |
| } |
| } |