Package org.dspace.app.util

Class RegexPatternUtils

java.lang.Object

org.dspace.app.util.RegexPatternUtils

public class RegexPatternUtils
extends Object

Utility class useful for check regex and patterns.

Author:

Vincenzo Mecca (vins01-4science - vincenzo.mecca at 4science.com)

Field Summary

Fields

Modifier and Type	Field	Description
static final Pattern	PATTERN_REGEX_INPUT_VALIDATOR
static final String	REGEX_FLAGS
static final String	REGEX_INPUT_VALIDATOR

Method Summary

Modifier and Type	Method	Description
static final Pattern	computePattern(String regex)	Computes a pattern starting from a regex definition with flags that uses the standard format: /{regex}/{flags} (ECMAScript format).

Methods inherited from class java.lang.Object

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

Field Details

REGEX_INPUT_VALIDATOR

public static final String REGEX_INPUT_VALIDATOR

See Also:

• Constant Field Values

REGEX_FLAGS

public static final String REGEX_FLAGS

See Also:

• Constant Field Values

PATTERN_REGEX_INPUT_VALIDATOR

public static final Pattern PATTERN_REGEX_INPUT_VALIDATOR

Method Details

computePattern

public static final Pattern computePattern(String regex)
                                    throws PatternSyntaxException

Computes a pattern starting from a regex definition with flags that uses the standard format: /{regex}/{flags} (ECMAScript format). This method can transform an ECMAScript regex into a java Pattern object which can be used to validate strings.
If regex is null, empty or blank a null Pattern will be retrieved If it's a valid regex, then a non-null Pattern will be retrieved, an exception will be thrown otherwise.

Parameters:

regex - with format /{regex}/{flags}

Returns:

Pattern regex pattern instance

Throws:

PatternSyntaxException