| /* |
| * Copyright 2005 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.xpath; |
| |
| import com.intellij.lang.BracePair; |
| import com.intellij.lang.Language; |
| import com.intellij.lang.PairedBraceMatcher; |
| import com.intellij.lang.cacheBuilder.SimpleWordsScanner; |
| import com.intellij.lang.cacheBuilder.WordsScanner; |
| import com.intellij.lang.findUsages.FindUsagesProvider; |
| import com.intellij.lang.refactoring.NamesValidator; |
| import com.intellij.lexer.Lexer; |
| import com.intellij.navigation.ItemPresentation; |
| import com.intellij.navigation.NavigationItem; |
| import com.intellij.openapi.fileTypes.SingleLazyInstanceSyntaxHighlighterFactory; |
| import com.intellij.openapi.fileTypes.SyntaxHighlighter; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiNamedElement; |
| import com.intellij.psi.tree.IElementType; |
| import org.intellij.lang.xpath.completion.CompletionLists; |
| import org.intellij.lang.xpath.psi.XPathFunction; |
| import org.intellij.lang.xpath.psi.XPathVariable; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public final class XPathLanguage extends Language { |
| public static final String ID = "XPath"; |
| |
| XPathLanguage() { |
| super(ID); |
| } |
| |
| @Override |
| public XPathFileType getAssociatedFileType() { |
| return XPathFileType.XPATH; |
| } |
| |
| public static class XPathPairedBraceMatcher implements PairedBraceMatcher { |
| private BracePair[] myBracePairs; |
| |
| @Override |
| public BracePair[] getPairs() { |
| if (myBracePairs == null) { |
| myBracePairs = new BracePair[]{ |
| new BracePair(XPathTokenTypes.LPAREN, XPathTokenTypes.RPAREN, false), |
| new BracePair(XPathTokenTypes.LBRACKET, XPathTokenTypes.RBRACKET, false), |
| }; |
| } |
| return myBracePairs; |
| } |
| |
| @Override |
| public int getCodeConstructStart(PsiFile file, int openingBraceOffset) { |
| return openingBraceOffset; |
| } |
| |
| @Override |
| public boolean isPairedBracesAllowedBeforeType(@NotNull IElementType lbraceType, @Nullable IElementType contextType) { |
| return true; |
| } |
| } |
| |
| public static class XPathFindUsagesProvider implements FindUsagesProvider { |
| @Override |
| @Nullable |
| public WordsScanner getWordsScanner() { |
| return new SimpleWordsScanner(); |
| } |
| |
| @Override |
| public boolean canFindUsagesFor(@NotNull PsiElement psiElement) { |
| return psiElement instanceof XPathFunction || psiElement instanceof XPathVariable; |
| } |
| |
| @Override |
| @Nullable |
| public String getHelpId(@NotNull PsiElement psiElement) { |
| return null; |
| } |
| |
| @Override |
| @NotNull |
| public String getType(@NotNull PsiElement element) { |
| if (element instanceof XPathFunction) { |
| return "function"; |
| } else if (element instanceof XPathVariable) { |
| return "variable"; |
| } else { |
| return "unknown"; |
| } |
| } |
| |
| @Override |
| @NotNull |
| public String getDescriptiveName(@NotNull PsiElement element) { |
| if (element instanceof PsiNamedElement) { |
| final String name = ((PsiNamedElement)element).getName(); |
| if (name != null) return name; |
| } |
| return element.toString(); |
| } |
| |
| @Override |
| @NotNull |
| public String getNodeText(@NotNull PsiElement element, boolean useFullName) { |
| if (useFullName) { |
| if (element instanceof NavigationItem) { |
| final NavigationItem navigationItem = ((NavigationItem)element); |
| final ItemPresentation presentation = navigationItem.getPresentation(); |
| if (presentation != null) { |
| final String text = presentation.getPresentableText(); |
| if (text != null) { |
| return text; |
| } |
| } |
| final String name = navigationItem.getName(); |
| if (name != null) { |
| return name; |
| } |
| } |
| } |
| if (element instanceof PsiNamedElement) { |
| final String name = ((PsiNamedElement)element).getName(); |
| if (name != null) return name; |
| } |
| return element.toString(); |
| } |
| } |
| |
| public static class XPathNamesValidator implements NamesValidator { |
| private final Lexer xPathLexer = XPathLexer.create(false); |
| |
| @Override |
| public synchronized boolean isIdentifier(@NotNull String text, Project project) { |
| xPathLexer.start(text); |
| assert xPathLexer.getState() == 0; |
| |
| boolean b = xPathLexer.getTokenType() == XPathTokenTypes.NCNAME; |
| xPathLexer.advance(); |
| |
| if (xPathLexer.getTokenType() == null) { |
| return b; |
| } else if (xPathLexer.getTokenType() == XPathTokenTypes.COL) { |
| xPathLexer.advance(); |
| b = xPathLexer.getTokenType() == XPathTokenTypes.NCNAME; |
| xPathLexer.advance(); |
| return b && xPathLexer.getTokenType() == null; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public boolean isKeyword(@NotNull String text, Project project) { |
| return CompletionLists.AXIS_NAMES.contains(text) || CompletionLists.NODE_TYPE_FUNCS.contains(text) || CompletionLists.OPERATORS.contains(text); |
| } |
| } |
| |
| public static class XPathSyntaxHighlighterFactory extends SingleLazyInstanceSyntaxHighlighterFactory { |
| @Override |
| @NotNull |
| protected SyntaxHighlighter createHighlighter() { |
| return new XPathHighlighter(false); |
| } |
| } |
| } |