1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * See LICENSE.txt included in this distribution for the specific 9 * language governing permissions and limitations under the License. 10 * 11 * When distributing Covered Code, include this CDDL HEADER in each 12 * file and include the License file at LICENSE.txt. 13 * If applicable, add the following below this CDDL HEADER, with the 14 * fields enclosed by brackets "[]" replaced with your own identifying 15 * information: Portions Copyright [yyyy] [name of copyright owner] 16 * 17 * CDDL HEADER END 18 */ 19 20 /* 21 * Copyright (c) 2019, Chris Fraire <cfraire@me.com>. 22 */ 23 package org.opengrok.indexer.analysis.verilog; 24 25 import org.opengrok.indexer.analysis.JFlexJointLexer; 26 import org.opengrok.indexer.analysis.JFlexSymbolMatcher; 27 import org.opengrok.indexer.analysis.Resettable; 28 29 /** 30 * Represents an abstract base class for SystemVerilog lexers. 31 */ 32 @SuppressWarnings("Duplicates") 33 abstract class VerilogLexer extends JFlexSymbolMatcher 34 implements JFlexJointLexer, Resettable { 35 36 /** 37 * Calls {@link #phLOC()} if the yystate is not COMMENT or SCOMMENT. 38 */ chkLOC()39 public void chkLOC() { 40 if (yystate() != COMMENT() && yystate() != SCOMMENT()) { 41 phLOC(); 42 } 43 } 44 45 /** 46 * Subclasses must override to get the constant value created by JFlex to 47 * represent COMMENT. 48 */ COMMENT()49 abstract int COMMENT(); 50 51 /** 52 * Subclasses must override to get the constant value created by JFlex to 53 * represent SCOMMENT. 54 */ SCOMMENT()55 abstract int SCOMMENT(); 56 } 57