001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.core.stringmatrix.calculation; 025 026 import java.util.regex.Pattern; 027 028 import org.ujmp.core.Matrix; 029 import org.ujmp.core.MatrixFactory; 030 import org.ujmp.core.enums.ValueType; 031 import org.ujmp.core.exceptions.MatrixException; 032 033 public class ReplaceRegex extends AbstractStringCalculation { 034 private static final long serialVersionUID = 8158807887609103123L; 035 036 private Pattern searchPattern = null; 037 038 private String replaceString = null; 039 040 public ReplaceRegex(Matrix matrix, String searchString, String replaceString) { 041 this(matrix, Pattern.compile(searchString), replaceString); 042 } 043 044 public ReplaceRegex(Matrix matrix, Pattern searchPattern, String replaceString) { 045 super(matrix); 046 this.searchPattern = searchPattern; 047 this.replaceString = replaceString; 048 } 049 050 051 public String getString(long... coordinates) throws MatrixException { 052 String src = getSource().getAsString(coordinates); 053 054 return (src == null) ? null : searchPattern.matcher(src).replaceAll(replaceString); 055 } 056 057 public static Matrix calc(Matrix source, Pattern search, String replacement) 058 throws MatrixException { 059 Matrix ret = MatrixFactory.zeros(ValueType.STRING, source.getSize()); 060 for (long[] c : source.availableCoordinates()) { 061 String src = source.getAsString(c); 062 ret.setAsString((src == null) ? null : search.matcher(src).replaceAll(replacement), c); 063 } 064 return ret; 065 } 066 067 public static Matrix calc(Matrix source, String searchString, String replacement) 068 throws MatrixException { 069 return calc(source, Pattern.compile(searchString), replacement); 070 } 071 072 }