| /* |
| * Copyright 2000-2013 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.jetbrains.python; |
| |
| import com.intellij.extapi.psi.ASTWrapperPsiElement; |
| import com.intellij.lang.ASTNode; |
| import com.intellij.lang.ParserDefinition; |
| import com.intellij.lang.PsiParser; |
| import com.intellij.lexer.Lexer; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.FileViewProvider; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.tree.IFileElementType; |
| import com.intellij.psi.tree.TokenSet; |
| import com.jetbrains.python.lexer.PythonIndentingLexer; |
| import com.jetbrains.python.parsing.PyParser; |
| import com.jetbrains.python.psi.PyElementType; |
| import com.jetbrains.python.psi.PyFileElementType; |
| import com.jetbrains.python.psi.PyStubElementType; |
| import com.jetbrains.python.psi.impl.PyFileImpl; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author yole |
| * @author Keith Lea |
| */ |
| public class PythonParserDefinition implements ParserDefinition { |
| private final TokenSet myWhitespaceTokens; |
| private final TokenSet myCommentTokens; |
| private final TokenSet myStringLiteralTokens; |
| |
| public PythonParserDefinition() { |
| myWhitespaceTokens = TokenSet.create(PyTokenTypes.LINE_BREAK, PyTokenTypes.SPACE, PyTokenTypes.TAB, PyTokenTypes.FORMFEED); |
| myCommentTokens = TokenSet.create(PyTokenTypes.END_OF_LINE_COMMENT); |
| myStringLiteralTokens = TokenSet.orSet(PyTokenTypes.STRING_NODES, TokenSet.create(PyElementTypes.STRING_LITERAL_EXPRESSION)); |
| } |
| |
| @NotNull |
| public Lexer createLexer(Project project) { |
| return new PythonIndentingLexer(); |
| } |
| |
| public IFileElementType getFileNodeType() { |
| return PyFileElementType.INSTANCE; |
| } |
| |
| @NotNull |
| public TokenSet getWhitespaceTokens() { |
| return myWhitespaceTokens; |
| } |
| |
| @NotNull |
| public TokenSet getCommentTokens() { |
| return myCommentTokens; |
| } |
| |
| @NotNull |
| public TokenSet getStringLiteralElements() { |
| return myStringLiteralTokens; |
| } |
| |
| @NotNull |
| public PsiParser createParser(Project project) { |
| return new PyParser(); |
| } |
| |
| @NotNull |
| public PsiElement createElement(@NotNull ASTNode node) { |
| final IElementType type = node.getElementType(); |
| if (type instanceof PyElementType) { |
| PyElementType pyElType = (PyElementType)type; |
| return pyElType.createElement(node); |
| } |
| else if (type instanceof PyStubElementType) { |
| return ((PyStubElementType)type).createElement(node); |
| } |
| return new ASTWrapperPsiElement(node); |
| } |
| |
| public PsiFile createFile(FileViewProvider viewProvider) { |
| return new PyFileImpl(viewProvider); |
| } |
| |
| public SpaceRequirements spaceExistanceTypeBetweenTokens(ASTNode left, ASTNode right) { |
| // see LanguageTokenSeparatorGenerator instead |
| return SpaceRequirements.MAY; |
| } |
| |
| } |