Package joptsimple.util
Class RegexMatcher
- java.lang.Object
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- joptsimple.util.RegexMatcher
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- All Implemented Interfaces:
ValueConverter<String>
public class RegexMatcher extends Object implements ValueConverter<String>
Ensures that values entirely match a regular expression.- Author:
- Paul Holser
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Constructor Summary
Constructors Constructor Description RegexMatcher(String pattern, int flags)
Creates a matcher that uses the given regular expression, modified by the given flags.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods 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.
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Constructor Detail
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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 patternflags
- modifying regex flags- Throws:
IllegalArgumentException
- if bit values other than those corresponding to the defined match flags are set inflags
PatternSyntaxException
- if the expression's syntax is invalid
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Method Detail
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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
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convert
public String convert(String value)
Description copied from interface:ValueConverter
Converts the given string value into a Java type.- Specified by:
convert
in interfaceValueConverter<String>
- Parameters:
value
- the string to convert- Returns:
- the converted value
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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 interfaceValueConverter<String>
- Returns:
- the target class for conversion
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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 adate format string
.- Specified by:
valuePattern
in interfaceValueConverter<String>
- Returns:
- a value pattern, or
null
if there's nothing interesting here
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