Package org.opengrok.indexer.util

Class Getopt

java.lang.Object

org.opengrok.indexer.util.Getopt

public class Getopt
extends Object

A simple implementation of the getopt(3c). It does just implement what I need ;-) Please note that I dislike the way GNU getopt allows mixing of options and arguments, so this version will stop processing options as soon as it encounters an argument.

Constructor Summary

Constructors

Constructor	Description
Getopt(String[] argv, String opts)	Creates a new instance of Getopt.

Method Summary

Modifier and Type	Method	Description
int	getOpt()	Get the next option in the options string.
String	getOptarg()	Get the argument to the current option.
int	getOptind()	Get the index of the first argument.
void	parse()	Parse the command line options.
void	reset()	Reset the current pointer so we may traverse all the options again.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Getopt

public Getopt(String[] argv,
 String opts)

Creates a new instance of Getopt.

Parameters:

argv - argument vector

opts - the list of allowed options

Method Details

parse

public void parse()
           throws ParseException

Parse the command line options.

Throws:

ParseException - if an illegal argument is passed

getOpt

public int getOpt()

Get the next option in the options string.

Returns:

the next valid option, or -1 if all options are processed

reset

public void reset()

Reset the current pointer so we may traverse all the options again.

getOptarg

public String getOptarg()

Get the argument to the current option.

Returns:

the argument or null if none present (or allowed)

getOptind

public int getOptind()

Get the index of the first argument.

Returns:

the index of the first argument in the original array