| /* |
| * Copyright 2006 Sascha Weinreuter |
| * |
| * 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 org.intellij.lang.regexp.surroundWith; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.lang.surroundWith.Surrounder; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.util.text.StringUtil; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiFileFactory; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.intellij.lang.regexp.RegExpFileType; |
| import org.intellij.lang.regexp.psi.RegExpAtom; |
| import org.intellij.lang.regexp.psi.RegExpPattern; |
| import org.intellij.lang.regexp.psi.impl.RegExpElementImpl; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| class GroupSurrounder implements Surrounder { |
| private final String myTitle; |
| private final String myGroupStart; |
| |
| public GroupSurrounder(String title, String groupStart) { |
| myTitle = title; |
| myGroupStart = groupStart; |
| } |
| |
| public String getTemplateDescription() { |
| return myTitle; |
| } |
| |
| public boolean isApplicable(@NotNull PsiElement[] elements) { |
| return elements.length == 1 || PsiTreeUtil.findCommonParent(elements) == elements[0].getParent(); |
| } |
| |
| @Nullable |
| public TextRange surroundElements(@NotNull Project project, @NotNull Editor editor, @NotNull PsiElement[] elements) throws IncorrectOperationException { |
| assert elements.length == 1 || PsiTreeUtil.findCommonParent(elements) == elements[0].getParent(); |
| final PsiElement e = elements[0]; |
| final ASTNode node = e.getNode(); |
| assert node != null; |
| |
| final ASTNode parent = node.getTreeParent(); |
| |
| final StringBuilder s = new StringBuilder(); |
| for (int i = 0; i < elements.length; i++) { |
| final PsiElement element = elements[i]; |
| if (element instanceof RegExpElementImpl) { |
| s.append(((RegExpElementImpl)element).getUnescapedText()); |
| } else { |
| s.append(element.getText()); |
| } |
| if (i > 0) { |
| final ASTNode child = element.getNode(); |
| assert child != null; |
| parent.removeChild(child); |
| } |
| } |
| final PsiFileFactory factory = PsiFileFactory.getInstance(project); |
| |
| final PsiFile f = factory.createFileFromText("dummy.regexp", RegExpFileType.INSTANCE, makeReplacement(s)); |
| final RegExpPattern pattern = PsiTreeUtil.getChildOfType(f, RegExpPattern.class); |
| assert pattern != null; |
| |
| final RegExpAtom element = pattern.getBranches()[0].getAtoms()[0]; |
| |
| if (isInsideStringLiteral(e)) { |
| final Document doc = editor.getDocument(); |
| PsiDocumentManager.getInstance(project).doPostponedOperationsAndUnblockDocument(doc); |
| final TextRange tr = e.getTextRange(); |
| doc.replaceString(tr.getStartOffset(), tr.getEndOffset(), |
| StringUtil.escapeStringCharacters(element.getText())); |
| |
| return TextRange.from(e.getTextRange().getEndOffset(), 0); |
| } else { |
| final PsiElement n = e.replace(element); |
| return TextRange.from(n.getTextRange().getEndOffset(), 0); |
| } |
| } |
| |
| private static boolean isInsideStringLiteral(PsiElement context) { |
| while (context != null) { |
| if (RegExpElementImpl.isLiteralExpression(context)) { |
| return true; |
| } |
| context = context.getContext(); |
| } |
| return false; |
| } |
| |
| protected String makeReplacement(StringBuilder s) { |
| return myGroupStart + s + ")"; |
| } |
| } |