| /* |
| * Copyright 2014, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.jf.smalidea; |
| |
| import com.intellij.lexer.LexerBase; |
| import com.intellij.psi.TokenType; |
| import com.intellij.psi.tree.IElementType; |
| import org.antlr.runtime.CommonToken; |
| import org.jetbrains.annotations.NotNull; |
| import org.jf.smali.smaliFlexLexer; |
| import org.jf.smali.smaliParser; |
| import org.jf.util.BlankReader; |
| |
| public class SmaliLexer extends LexerBase { |
| private final smaliFlexLexer lexer = new smaliFlexLexer(BlankReader.INSTANCE); |
| private CommonToken token = null; |
| private int state = 0; |
| private int endOffset; |
| private CharSequence text; |
| |
| public SmaliLexer() { |
| super(); |
| lexer.setSuppressErrors(true); |
| } |
| |
| @Override public void start(@NotNull CharSequence buffer, int startOffset, int endOffset, int initialState) { |
| text = buffer; |
| lexer.reset(buffer, startOffset, endOffset, initialState); |
| this.endOffset = endOffset; |
| this.token = null; |
| this.state = 0; |
| } |
| |
| @NotNull @Override public CharSequence getTokenSequence() { |
| return getTokenText(); |
| } |
| |
| @NotNull @Override public String getTokenText() { |
| ensureToken(); |
| return token.getText(); |
| } |
| |
| @Override |
| public int getState() { |
| ensureToken(); |
| return state; |
| } |
| |
| @Override |
| public IElementType getTokenType() { |
| ensureToken(); |
| return mapTokenTypeToElementType(token.getType()); |
| } |
| |
| private IElementType mapTokenTypeToElementType(int tokenType) { |
| if (tokenType == smaliParser.WHITE_SPACE) { |
| return TokenType.WHITE_SPACE; |
| } |
| if (tokenType == smaliParser.INVALID_TOKEN) { |
| return TokenType.BAD_CHARACTER; |
| } |
| if (tokenType == smaliParser.EOF) { |
| return null; |
| } |
| return SmaliTokens.getElementType(tokenType); |
| } |
| |
| @Override |
| public int getTokenStart() { |
| ensureToken(); |
| return token.getStartIndex(); |
| } |
| |
| @Override |
| public int getTokenEnd() { |
| ensureToken(); |
| return token.getStopIndex()+1; |
| } |
| |
| @Override |
| public void advance() { |
| token = null; |
| state = 0; |
| } |
| |
| @NotNull @Override public CharSequence getBufferSequence() { |
| return text; |
| } |
| |
| @Override |
| public int getBufferEnd() { |
| return endOffset; |
| } |
| |
| private void ensureToken() { |
| if (token == null) { |
| token = (CommonToken)lexer.nextToken(); |
| state = lexer.yystate(); |
| } |
| assert token != null; |
| } |
| } |