package edu.northwestern.at.utils.csv;
/* Please see the license information at the end of this file. */
/** CSVFile handles files containing delimiter separated entries.
*
* <p>
* This is the abstract base clase used by {@link CSVFileReader} and
* {@link CSVFileWriter}.
* </p>
*
* <p>
* The following simple example converts one CSV file into another
* that uses a different notation for field separator and text qualifier.
* </p>
*
* <p>
* <pre>
* import java.util.*;
* import java.io.*;
*
* public class CSVFileExample
* {
* public static void main( String[] args )
* throws FileNotFoundException,IOException
* {
* CSVFileReader in = new CSVFileReader("csv_in.txt", ';', '"');
* CSVFileWriter out = new CSVFileWriter("csv_out.txt", ',', '\'');
*
* List fields = in.readFields();
*
* while( fields != null )
* {
* out.writeFields( fields );
* fields = in.readFields();
* }
*
* in.close();
* out.close();
* }
* }
* </pre>
* </p>
*
* @author Fabrizio Fazzino
*
* <p>
* Modified by Philip R. Burns at Northwestern University.
* </p>
*/
abstract public class CSVFile
{
/** The default char used as field separator.
*/
protected static final char DEFAULT_SEPARATOR = ',';
/** The default char used as text qualifier
*/
protected static final char DEFAULT_QUALIFIER = '"';
/** The current char used as field separator.
*/
protected char separator;
/** The current char used as text qualifier.
*/
protected char qualifier;
/** CSVFile constructor with the default field separator and text qualifier.
*/
public CSVFile()
{
this( DEFAULT_SEPARATOR , DEFAULT_QUALIFIER );
}
/** CSVFile constructor with given field separator.
*
* @param separator The field separator.
*/
public CSVFile( char separator )
{
this( separator , DEFAULT_QUALIFIER );
}
/** CSVFile constructor with given field separator and text qualifier.
*
* @param separator The field separator to used.
* @param qualifier The text qualifier to be use.
*/
public CSVFile( char separator , char qualifier )
{
setSeparator( separator );
setQualifier( qualifier );
}
/** Set the field separator.
*
* @param separator The field separator to use.
*/
public void setSeparator( char separator )
{
this.separator = separator;
}
/** Set the text qualifier.
*
* @param qualifier The new text qualifier to use.
*/
public void setQualifier( char qualifier )
{
this.qualifier = qualifier;
}
/** Get the current field separator.
*
* @return The char containing the current field separator
*/
public char getSeparator()
{
return separator;
}
/** Get the current text qualifier.
*
* @return The text qualifier character.
*/
public char getQualifier()
{
return qualifier;
}
}
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