ConverterUtils.java
资源名称:Weka-3-2.rar [点击查看]
上传用户:rhdiban
上传日期:2013-08-09
资源大小:15085k
文件大小:3k
源码类别:
Windows编程
开发平台:
Java
- /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * ConverterUtils.java
- * Copyright (C) 2000 Mark Hall
- *
- */
- package weka.core.converters;
- import java.io.StreamTokenizer;
- import java.io.Serializable;
- import java.io.IOException;
- /**
- * Utility routines for the converter package.
- *
- * @author Mark Hall (mhall@cs.waikato.ac.nz)
- * @version $Revision 1.0 $
- * @see Serializable
- */
- public class ConverterUtils implements Serializable {
- /**
- * Gets token, skipping empty lines.
- *
- * @param tokenizer the stream tokenizer
- * @exception IOException if reading the next token fails
- */
- public static void getFirstToken(StreamTokenizer tokenizer)
- throws IOException {
- while (tokenizer.nextToken() == StreamTokenizer.TT_EOL){};
- if ((tokenizer.ttype == ''') ||
- (tokenizer.ttype == '"')) {
- tokenizer.ttype = StreamTokenizer.TT_WORD;
- } else if ((tokenizer.ttype == StreamTokenizer.TT_WORD) &&
- (tokenizer.sval.equals("?"))) {
- tokenizer.ttype = '?';
- }
- }
- /**
- * Gets token.
- *
- * @param tokenizer the stream tokenizer
- * @exception IOException if reading the next token fails
- */
- public static void getToken(StreamTokenizer tokenizer) throws IOException {
- tokenizer.nextToken();
- if (tokenizer.ttype== StreamTokenizer.TT_EOL) {
- return;
- }
- if ((tokenizer.ttype == ''') ||
- (tokenizer.ttype == '"')) {
- tokenizer.ttype = StreamTokenizer.TT_WORD;
- } else if ((tokenizer.ttype == StreamTokenizer.TT_WORD) &&
- (tokenizer.sval.equals("?"))) {
- tokenizer.ttype = '?';
- }
- }
- /**
- * Throws error message with line number and last token read.
- *
- * @param theMsg the error message to be thrown
- * @param tokenizer the stream tokenizer
- * @exception IOExcpetion containing the error message
- */
- public static void errms(StreamTokenizer tokenizer, String theMsg)
- throws IOException {
- throw new IOException(theMsg + ", read " + tokenizer.toString());
- }
- }
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