Package joptsimple.util

Class RegexMatcher

java.lang.Object

joptsimple.util.RegexMatcher

All Implemented Interfaces:

ValueConverter<String>

public class RegexMatcher
extends Object
implements ValueConverter<String>

Ensures that values entirely match a regular expression.

Author:

Paul Holser

Constructor Summary

Constructors

Constructor	Description
RegexMatcher(String pattern, int flags)	Creates a matcher that uses the given regular expression, modified by the given flags.

Method Summary

Modifier and Type	Method	Description
String	convert(String value)	Converts the given string value into a Java type.
static ValueConverter<String>	regex(String pattern)	Gives a matcher that uses the given regular expression.
String	valuePattern()	Gives a string that describes the pattern of the values this converter expects, if any.
Class<String>	valueType()	Gives the class of the type of values this converter converts to.

Methods inherited from class java.lang.Object

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

Constructor Detail

RegexMatcher

public RegexMatcher(String pattern,
                    int flags)

Creates a matcher that uses the given regular expression, modified by the given flags.

Parameters:

pattern - the regular expression pattern

flags - modifying regex flags

Throws:

IllegalArgumentException - if bit values other than those corresponding to the defined match flags are set in flags

PatternSyntaxException - if the expression's syntax is invalid

Method Detail

regex

public static ValueConverter<String> regex(String pattern)

Gives a matcher that uses the given regular expression.

Parameters:

pattern - the regular expression pattern

Returns:

the new converter

Throws:

PatternSyntaxException - if the expression's syntax is invalid

convert

public String convert(String value)

Description copied from interface: ValueConverter

Converts the given string value into a Java type.

Specified by:

convert in interface ValueConverter<String>

Parameters:

value - the string to convert

Returns:

the converted value

valueType

public Class<String> valueType()

Description copied from interface: ValueConverter

Gives the class of the type of values this converter converts to.

Specified by:

valueType in interface ValueConverter<String>

Returns:

the target class for conversion

valuePattern

public String valuePattern()

Description copied from interface: ValueConverter

Gives a string that describes the pattern of the values this converter expects, if any. For example, a date converter can respond with a date format string.

Specified by:

valuePattern in interface ValueConverter<String>

Returns:

a value pattern, or null if there's nothing interesting here