proper.imp
Class CSVParser

java.lang.Object
  proper.core.ProperObject
      proper.imp.Parser
          proper.imp.CSVParser

All Implemented Interfaces:

ProperInterface, ParserInterface

public class CSVParser
extends Parser

This parser works on CSV files. Handwritten parser was necessary, since JLex/CUP had problems with big files...
NOTE: It discards cells that contain non-ASCII or whitespace (except blank) characters, because of RELAGGS.

Version:

$Revision: 1.2 $

Author:

FracPete

Field Summary

static java.lang.String	FILE_PREDICATE the predicate name of the current file
static java.lang.String	IDENTIFIER_PREDICATE the predicate name of the identifiers

Fields inherited from class proper.imp.Parser

RELAGGS_FIX

Fields inherited from interface proper.imp.ParserInterface

CLASS_NEGATIVE, CLASS_POSITIVE

Fields inherited from interface proper.core.ProperInterface

VERSION

Constructor Summary

CSVParser()
initializes the object

Method Summary

boolean	getHasIdentifiers() returns whether there are any identifiers in the first line
java.lang.String	getPredicateName() returns the name for this predicates
char	getQualifier() returns the qualifier for strings (default: ")
char	getSeparator() returns the separator for the columns (default: ,)
boolean	getTreatEmptyAsNull() returns whether we treat empty cells as NULL values
static void	main(java.lang.String[] args) for testing only
void	parse(java.io.BufferedReader reader) uses the given buffered reader to parse the file
void	parse(java.io.Reader reader) uses the given reader to parse the file
void	setHasIdentifiers(boolean hasIdentifiers) sets whether we have any identifiers in the first line
void	setPredicateName(java.lang.String name) sets the name for the predicates in this file (automatically lower case)
void	setPredicateName(java.lang.String name, boolean lowercase) sets the name for the predicates in this file, can be AS IS or lower case
void	setQualifier(char qualifier) sets the qualifier for strings (default: ")
void	setQualifier(java.lang.String qualifier) sets the qualifier for strings (default: ")
void	setSeparator(char separator) sets the separator for the columns (default: ,)
void	setSeparator(java.lang.String separator) sets the separator for the columns (default: ,), 'tab' is interpreted as '\t'
void	setTreatEmptyAsNull(boolean treatEmptyAsNull) sets whether we treat empty cells as NULL values

Methods inherited from class proper.imp.Parser

clear, getAddClassLabel, getClassLabel, getFilename, getOnlyForSingles, getPredicates, parse, setAddClassLabel, setClassLabel, setFilename, setID, setOnlyForSingles, toString

Methods inherited from class proper.core.ProperObject

addListener, addOutput, classInVerbose, debugprint, debugprint, debugprint, debugprint, debugprintln, debugprintln, debugprintln, debugprintln, debugprintln, getListeners, getRuntime, getVerbose, getVerboseLevel, getVerboseLevelForClass, getVerboseString, getVerboseStringForClass, notifyListener, notifyListeners, print, print, print, print, println, println, println, println, println, printMemory, removeListener, setOutput, setVerbose, setVerboseLevel, setVerboseString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface proper.imp.ParserInterface

getVerbose, setVerbose

Field Detail

FILE_PREDICATE

public static java.lang.String FILE_PREDICATE

the predicate name of the current file

IDENTIFIER_PREDICATE

public static java.lang.String IDENTIFIER_PREDICATE

the predicate name of the identifiers

Constructor Detail

CSVParser

public CSVParser()

initializes the object

Method Detail

setPredicateName

public void setPredicateName(java.lang.String name)

sets the name for the predicates in this file (automatically lower case)

setPredicateName

public void setPredicateName(java.lang.String name,
                             boolean lowercase)

sets the name for the predicates in this file, can be AS IS or lower case

getPredicateName

public java.lang.String getPredicateName()

returns the name for this predicates

setHasIdentifiers

public void setHasIdentifiers(boolean hasIdentifiers)

sets whether we have any identifiers in the first line

getHasIdentifiers

public boolean getHasIdentifiers()

returns whether there are any identifiers in the first line

setSeparator

public void setSeparator(java.lang.String separator)

sets the separator for the columns (default: ,), 'tab' is interpreted as '\t'

setSeparator

public void setSeparator(char separator)

sets the separator for the columns (default: ,)

getSeparator

public char getSeparator()

returns the separator for the columns (default: ,)

setQualifier

public void setQualifier(java.lang.String qualifier)

sets the qualifier for strings (default: ")

setQualifier

public void setQualifier(char qualifier)

sets the qualifier for strings (default: ")

getQualifier

public char getQualifier()

returns the qualifier for strings (default: ")

setTreatEmptyAsNull

public void setTreatEmptyAsNull(boolean treatEmptyAsNull)

sets whether we treat empty cells as NULL values

getTreatEmptyAsNull

public boolean getTreatEmptyAsNull()

returns whether we treat empty cells as NULL values

parse

public void parse(java.io.BufferedReader reader)
           throws java.lang.Exception

uses the given buffered reader to parse the file

Throws:

java.lang.Exception

parse

public void parse(java.io.Reader reader)
           throws java.lang.Exception

uses the given reader to parse the file

Specified by:

parse in interface ParserInterface

Overrides:

parse in class Parser

Throws:

java.lang.Exception

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

for testing only

Throws:

java.lang.Exception