1*d219b4ceSAdam Hornacek /* 2*d219b4ceSAdam Hornacek * CDDL HEADER START 3*d219b4ceSAdam Hornacek * 4*d219b4ceSAdam Hornacek * The contents of this file are subject to the terms of the 5*d219b4ceSAdam Hornacek * Common Development and Distribution License (the "License"). 6*d219b4ceSAdam Hornacek * You may not use this file except in compliance with the License. 7*d219b4ceSAdam Hornacek * 8*d219b4ceSAdam Hornacek * See LICENSE.txt included in this distribution for the specific 9*d219b4ceSAdam Hornacek * language governing permissions and limitations under the License. 10*d219b4ceSAdam Hornacek * 11*d219b4ceSAdam Hornacek * When distributing Covered Code, include this CDDL HEADER in each 12*d219b4ceSAdam Hornacek * file and include the License file at LICENSE.txt. 13*d219b4ceSAdam Hornacek * If applicable, add the following below this CDDL HEADER, with the 14*d219b4ceSAdam Hornacek * fields enclosed by brackets "[]" replaced with your own identifying 15*d219b4ceSAdam Hornacek * information: Portions Copyright [yyyy] [name of copyright owner] 16*d219b4ceSAdam Hornacek * 17*d219b4ceSAdam Hornacek * CDDL HEADER END 18*d219b4ceSAdam Hornacek */ 19*d219b4ceSAdam Hornacek 20*d219b4ceSAdam Hornacek /* 21*d219b4ceSAdam Hornacek * Copyright (c) 2020, Chris Fraire <cfraire@me.com>. 22*d219b4ceSAdam Hornacek */ 23*d219b4ceSAdam Hornacek 24*d219b4ceSAdam Hornacek package org.opengrok.indexer.util; 25*d219b4ceSAdam Hornacek 26*d219b4ceSAdam Hornacek import java.io.IOException; 27*d219b4ceSAdam Hornacek import java.util.List; 28*d219b4ceSAdam Hornacek %% 29*d219b4ceSAdam Hornacek %public 30*d219b4ceSAdam Hornacek %class LineBreakerScanner 31*d219b4ceSAdam Hornacek %char 32*d219b4ceSAdam Hornacek %unicode 33*d219b4ceSAdam Hornacek %type boolean 34*d219b4ceSAdam Hornacek %eofval{ 35*d219b4ceSAdam Hornacek return false; 36*d219b4ceSAdam Hornacek %eofval} 37*d219b4ceSAdam Hornacek %eof{ 38*d219b4ceSAdam Hornacek /* 39*d219b4ceSAdam Hornacek * Following JFlexXref's custom, an empty file or a file ending with EOL 40*d219b4ceSAdam Hornacek * produces an additional line of length zero. We also ensure there are two 41*d219b4ceSAdam Hornacek * entries to describe the boundaries. 42*d219b4ceSAdam Hornacek */ 43*d219b4ceSAdam Hornacek offsets.add(yychar); 44*d219b4ceSAdam Hornacek length = yychar; 45*d219b4ceSAdam Hornacek %eof} 46*d219b4ceSAdam Hornacek %{ 47*d219b4ceSAdam Hornacek private long length; 48*d219b4ceSAdam Hornacek 49*d219b4ceSAdam Hornacek private List<Long> offsets; 50*d219b4ceSAdam Hornacek getLength()51*d219b4ceSAdam Hornacek public long getLength() { 52*d219b4ceSAdam Hornacek return length; 53*d219b4ceSAdam Hornacek } 54*d219b4ceSAdam Hornacek 55*d219b4ceSAdam Hornacek /** 56*d219b4ceSAdam Hornacek * Sets the required target to write, and adds a first offset of 0. 57*d219b4ceSAdam Hornacek * @param offsets a required instance 58*d219b4ceSAdam Hornacek */ setTarget(List<Long> offsets)59*d219b4ceSAdam Hornacek public void setTarget(List<Long> offsets) { 60*d219b4ceSAdam Hornacek this.length = 0; 61*d219b4ceSAdam Hornacek this.offsets = offsets; 62*d219b4ceSAdam Hornacek offsets.add(0L); 63*d219b4ceSAdam Hornacek } 64*d219b4ceSAdam Hornacek 65*d219b4ceSAdam Hornacek /** 66*d219b4ceSAdam Hornacek * Call {@link #yylex()} until {@code false}, which consumes all input so 67*d219b4ceSAdam Hornacek * that the argument to {@link #setTarget(List)} contains the entire 68*d219b4ceSAdam Hornacek * transformation. 69*d219b4ceSAdam Hornacek */ consume()70*d219b4ceSAdam Hornacek public void consume() throws IOException { 71*d219b4ceSAdam Hornacek while (yylex()) { 72*d219b4ceSAdam Hornacek //noinspection UnnecessaryContinue 73*d219b4ceSAdam Hornacek continue; 74*d219b4ceSAdam Hornacek } 75*d219b4ceSAdam Hornacek } 76*d219b4ceSAdam Hornacek %} 77*d219b4ceSAdam Hornacek 78*d219b4ceSAdam Hornacek %include ../analysis/Common.lexh 79*d219b4ceSAdam Hornacek %% 80*d219b4ceSAdam Hornacek 81*d219b4ceSAdam Hornacek {EOL} { 82*d219b4ceSAdam Hornacek offsets.add(yychar + yylength()); 83*d219b4ceSAdam Hornacek } 84*d219b4ceSAdam Hornacek 85*d219b4ceSAdam Hornacek [^\n\r] { 86*d219b4ceSAdam Hornacek } 87