OptionValidator

java.lang.Object
- org.apache.commons.cli.OptionValidator

```
final class OptionValidator
extends java.lang.Object
```
Validates an Option string.

Since:

1.1

Version:

$Id: OptionValidator.java 1544819 2013-11-23 15:34:31Z tn $

Constructor Summary

Constructors
Constructor Description

OptionValidator()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`private static boolean`	`isValidChar(char c)`	Returns whether the specified character is a valid character.
`private static boolean`	`isValidOpt(char c)`	Returns whether the specified character is a valid Option.
`(package private) static void`	`validateOption(java.lang.String opt)`	Validates whether `opt` is a permissible Option shortOpt.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - OptionValidator
```
OptionValidator()
```
- Method Detail
  - validateOption
```
static void validateOption(java.lang.String opt)
                    throws java.lang.IllegalArgumentException
```
    Validates whether opt is a permissible Option shortOpt. The rules that specify if the opt is valid are:
    
    a single character opt that is either ' '(special case), '?', '@' or a letter
    
    a multi character opt that only contains letters.
    
    In case opt is null no further validation is performed.
    Parameters:
    
    opt - The option string to validate, may be null
    
    Throws:
    
    java.lang.IllegalArgumentException - if the Option is not valid.
  - isValidOpt
```
private static boolean isValidOpt(char c)
```
    Returns whether the specified character is a valid Option.
    
    Parameters:
    
    c - the option to validate
    
    Returns:
    
    true if c is a letter, '?' or '@', otherwise false.
  - isValidChar
```
private static boolean isValidChar(char c)
```
    Returns whether the specified character is a valid character.
    
    Parameters:
    
    c - the character to validate
    
    Returns:
    
    true if c is a letter.