70 lines
2.1 KiB
Java
70 lines
2.1 KiB
Java
/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002 by Robert Greene
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage;
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/**
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* Filter the given file data for text.
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* <p>
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* Date created: Nov 2, 2002 9:11:27 PM
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* @author: Rob Greene
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*/
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public class TextFileFilter implements FileFilter {
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/**
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* Constructor for TextFileFilter.
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*/
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public TextFileFilter() {
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super();
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}
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/**
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* Process the given FileEntry and return a byte array with filtered data.
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* @see com.webcodepro.applecommander.storage.FileFilter#filter(byte[])
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*/
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public byte[] filter(FileEntry fileEntry) {
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byte[] fileData = fileEntry.getFileData();
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byte[] workingData = new byte[fileData.length];
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int position = 0;
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for (int i=0; i<fileData.length; i++) {
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byte byt = fileData[i];
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if (byt != 0) {
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if ((byt & 0x80) != 0) { // high bit set
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workingData[position++] = (byte)(byt & 0x7f);
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} else {
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workingData[position++] = byt;
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}
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}
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}
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byte[] filteredData = new byte[position];
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System.arraycopy(workingData, 0, filteredData, 0, filteredData.length);
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return filteredData;
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}
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/**
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* Give suggested file name.
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*/
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public String getSuggestedFileName(FileEntry fileEntry) {
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String fileName = fileEntry.getFilename().trim();
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if (!fileName.toLowerCase().endsWith(".txt")) {
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fileName = fileName + ".txt";
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}
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return fileName;
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}
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}
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