package org.jetbrains.plugins.clojure.parser;
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.IFileElementType;
import com.intellij.psi.tree.TokenSet;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.clojure.lexer.ClojureFlexLexer;
import org.jetbrains.plugins.clojure.lexer.ClojureTokenTypes;
import org.jetbrains.plugins.clojure.psi.impl.ClojureFileImpl;
/**
* User: peter
* Date: Nov 20, 2008
* Time: 11:10:44 AM
* Copyright 2007, 2008, 2009 Red Shark Technology
* <p/>
* http://www.apache.org/licenses/LICENSE-2.0
* <p/>
* 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.
*/
public class ClojureParserDefinition implements ParserDefinition {
@NotNull
public Lexer createLexer(Project project) {
return new ClojureFlexLexer();
}
public PsiParser createParser(Project project) {
return new ClojureParser();
}
public IFileElementType getFileNodeType() {
return ClojureElementTypes.FILE;
}
@NotNull
public TokenSet getWhitespaceTokens() {
return ClojureTokenTypes.WHITESPACE_SET;
}
@NotNull
public TokenSet getCommentTokens() {
return ClojureTokenTypes.COMMENTS;
}
@NotNull
public TokenSet getStringLiteralElements() {
return ClojureTokenTypes.STRINGS;
}
@NotNull
public PsiElement createElement(ASTNode node) {
return ClojurePsiCreator.createElement(node);
}
public SpaceRequirements spaceExistanceTypeBetweenTokens(ASTNode left, ASTNode right) {
if (
left.getElementType() == ClojureTokenTypes.QUOTE
|| left.getElementType() == ClojureTokenTypes.SHARP
|| left.getElementType() == ClojureTokenTypes.SHARPUP
) {
return SpaceRequirements.MUST_NOT;
} else if (
left.getElementType() == ClojureTokenTypes.LEFT_PAREN
|| right.getElementType() == ClojureTokenTypes.RIGHT_PAREN
|| left.getElementType() == ClojureTokenTypes.RIGHT_PAREN
|| right.getElementType() == ClojureTokenTypes.LEFT_PAREN
|| left.getElementType() == ClojureTokenTypes.LEFT_CURLY
|| right.getElementType() == ClojureTokenTypes.RIGHT_CURLY
|| left.getElementType() == ClojureTokenTypes.RIGHT_CURLY
|| right.getElementType() == ClojureTokenTypes.LEFT_CURLY
|| left.getElementType() == ClojureTokenTypes.LEFT_SQUARE
|| right.getElementType() == ClojureTokenTypes.RIGHT_SQUARE
|| left.getElementType() == ClojureTokenTypes.RIGHT_SQUARE
|| right.getElementType() == ClojureTokenTypes.LEFT_SQUARE) {
return SpaceRequirements.MAY;
}
return SpaceRequirements.MUST;
}
public PsiFile createFile(FileViewProvider viewProvider) {
return new ClojureFileImpl(viewProvider);
}
}