82 lines
2.0 KiB
Java
82 lines
2.0 KiB
Java
/*
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* Pixel Dungeon
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* Copyright (C) 2012-2015 Oleg Dolya
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*
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* Shattered Pixel Dungeon
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* Copyright (C) 2014-2021 Evan Debenham
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package com.watabou.utils;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class Highlighter {
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private static final Pattern HIGHLIGHTER = Pattern.compile( "_(.*?)_" );
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private static final Pattern STRIPPER = Pattern.compile( "[ \n]" );
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public String text;
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public boolean[] mask;
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public Highlighter( String text ) {
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String stripped = STRIPPER.matcher( text ).replaceAll( "" );
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mask = new boolean[stripped.length()];
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Matcher m = HIGHLIGHTER.matcher( stripped );
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int pos = 0;
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int lastMatch = 0;
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while (m.find()) {
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pos += (m.start() - lastMatch);
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int groupLen = m.group( 1 ).length();
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for (int i=pos; i < pos + groupLen; i++) {
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mask[i] = true;
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}
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pos += groupLen;
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lastMatch = m.end();
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}
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m.reset( text );
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StringBuffer sb = new StringBuffer();
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while (m.find()) {
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m.appendReplacement( sb, m.group( 1 ) );
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}
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m.appendTail( sb );
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this.text = sb.toString();
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}
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public boolean[] inverted() {
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boolean[] result = new boolean[mask.length];
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for (int i=0; i < result.length; i++) {
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result[i] = !mask[i];
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}
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return result;
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}
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public boolean isHighlighted() {
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for (int i=0; i < mask.length; i++) {
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if (mask[i]) {
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return true;
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}
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}
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return false;
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}
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} |